DE102011008531A1 - Apparatus and method for applying a stiction-increasing agent to a surface portion of a stack layer - Google Patents

Abstract

A device (01) and a method for applying at least one stiction-increasing agent to at least one surface section (02) of at least one stacking unit (03) of at least one stacking layer (04) to be stacked into a stack are described. The device is characterized by a nozzle arrangement (05) provided for applying the static friction increasing agent. The method provides that the application of the stiction-increasing agent is carried out without contact.

Description

The present invention relates to a device and a method for applying at least one adhesion-promoting agent to at least one stacking unit of at least one staple layer to be stacked into a stack according to the preamble of claim 1 or claim 10.

State of the art

In order to obtain a higher stability of the stack when stacking single or entire stack layers of articles, containers, containers or packaging units briefly combined under the term stack units, it is known to apply a static friction increasing agent to at least one or more surface portions of at least one stack unit. The stacking can be provided for example during palletizing.

To obtain a higher stability of a stack is through US 5,895,540 known to provide at least the lower and upper sides of the stacking units of a stack with an at least partially double-sided adhesive tape. The double-sided adhesive tape consists of three strips of single-sided adhesive tape, which partially overlap each other adhesive layer on adhesive layer, leaving portions of their adhesive layers. As a result, the double-sided adhesive tape can be rolled up without the need for a separately peelable protective film required for other double-sided adhesive tapes. For example, cardboard boxes provided as stacking units can be closed by means of the double-sided adhesive tape. The double-sided adhesive tape thus fulfills a dual function. On the one hand the closing of the cardboard boxes, and on the other hand, the increase of the static friction between the stacked in the stack and provided with the adhesive surfaces of the cardboard boxes. The double-sided adhesive tape forms a static, before and during and between the stacking units of the stack before, during and after application and an adhesive effect both with in contact, as well as coming into contact surfaces, stiction-increasing means. Since the adhesive effect with double-sided adhesive tape contacting surfaces on upper and lower sides of the stacking units makes any further transport of the stacking units impossible, the stacking units must be individually stacked on the stack immediately after being provided with the double-sided adhesive tape.

A disadvantage of increasing the stability of a stack by applying double-sided adhesive tapes to surfaces of the stacking units is the difficult handling of the stacking units until the completion of the stack after the double-sided adhesive tape has been applied. An economical, cost-effective assembly of stacking units to stack layers before stacking is not possible.

By US Pat. No. 7,048,817 B1 It is known to glue cardboard boxes to a composite cardboard box, which can also be referred to as a composite cardboard box. Here, an adhesive is applied at predetermined locations on the top of cardboard boxes, which form stacking units of an already launched, top stack layer of a stack. As a result, in the stack vertically adjacent and in the stack position identically arranged cardboard boxes each form a composite cardboard box. By alternating the position and orientation of groups of stack layers over the height of the stack, a stable stack is obtained.

The disadvantage hereof is that the adhesive applied to the topmost stack layer of the stack already applied must retain its adhesive effect with surfaces in contact as well as with surfaces coming into contact at least until the next stack layer is placed on top. In this way, a stacking device provided for producing the stack and stacking one stack after the other on the stack can become dirty and stick together. In addition, adhesives whose adhesion, especially with respect to contacting surfaces, may change over time, e.g. B. with changing, for example, falling temperature, such as in handling simple and inexpensive in procurement procurement hot melt adhesive. In addition, the adhesive must be applied at the stacking station from the same side on the last deposited topmost stack layer, from which side of the next stack layer is placed on the stack. This can lead to a collision of the next stack layer placing stacking device with the means for applying the adhesive to the last stack deposited on the stack. In addition, the production and operation of a device that makes up the stacking and application of the adhesive is costly and time-consuming, since both devices, the one for applying the adhesive to the last stacked layer deposited on the stack and the one for placing the next stacked layer on the last on pile stacked stack, alternately require free access from the top to the top stack location of the stack.

By US 4,365,710 is known, stacking units before the z. B. palletizing occurring during stacking to obtain a higher stability of the stack. Both Stacking units are cardboard boxes that are used as packaging units, eg. B. as outer packaging, serve. In the treatment, at least one surface of each cardboard box adjacent to another cardboard box in the stack is applied with a predetermined pattern of static friction between the cardboard box increasing means. The agent is a primer or adhesive consisting of a blend of an ethylene-vinyl acetate copolymer resin with mineral oils and fine crystalline wax. The stiction-increasing agent is at least during application in a liquid and / or waxy / and / or gelatinous state. The application of the stiction-increasing agent is carried out from below by wheels or rollers over which the cardboard boxes are pulled individually by hand, before they also one by one z. B. also be stacked on a pallet by hand to the stack.

The disadvantage of this is that due to the order of the friction-increasing agent from below, the stack units must be placed immediately after the order and individually on the stack. An economic grouping, for example, at least one complete stacking layer is not possible. In addition, the application from below contributes significantly to pollution of facilities provided for handling the stacking units. A further disadvantage results from a considerable maintenance and servicing effort due to the wear occurring due to the required contact between stacking units and the means for applying the stiction-increasing agent.

By EP 2 107 009 A1 For example, an apparatus and a method for applying at least one adhesion-promoting agent to at least one surface section of at least one stacking unit of at least one stack layer to be stacked to form a stack are known. It is provided, at least surface portions of the upper sides of one or more yet to be placed on a stacking space on the stack stacking stack to be grouped stacking units, preferably also parts whose between the upper and lower sides extending lateral surfaces to provide a static friction increasing means. For example, hot-melt adhesive is used as a stiction-increasing agent. The stiction-increasing agent is in this case applied from the top, leaving the underside at least on individual surface parts of the tops and optionally on at least individual surface parts of the lateral surfaces in a liquid at least during application liquid and / or gel and / or waxy state, before the stacking units are grouped into a stack layer, which stack layer is then then placed on the stack.

When placing the next stack layer provided as a stiction increasing agent hot glue is already cooled again and has no adhesive effect except the existing adhesive effect against the surface to which it was hot applied.

This has the disadvantage that the stability of the entire stack may be jeopardized if a stacking unit provided with stiction-increasing means, which is provided in particular for a stacking layer, in which not all stacking units are provided with friction-increasing means, for example due to damage from the feed must be removed for grouping to the stack layer. A further disadvantage results from the increased risk of contamination of stacking units provided for the transport or the supply of the stacking units, which increase at least in part with the static friction, to the grouping of the stacking units into finished stack layers, for example, transport conveyors designed as roller conveyors.

An object of the invention is therefore to provide an apparatus and a method for applying at least one stiction-enhancing agent on at least one stacking unit of at least one staple stacked to a stack, which are easy and inexpensive to implement and guarantee a reliable cohesion of the stack ,

The object is solved with the features of the independent claims.

Further advantageous embodiments are described by the subclaims.

description

A first subject of the invention accordingly relates to a device for applying at least one surface friction enhancing agent to at least one surface unit of at least one stacking unit of at least one of a plurality of stacking layers to be stacked in a stack, which comprises a nozzle arrangement for application. The nozzle arrangement is an arrangement of, for example, one or more, preferably at least two, outlet nozzles and / or spray nozzles and / or spray nozzles combined under the term nozzle.

By using a nozzle assembly, wear and damage, under other also the stacking units, prevented and thereby saved maintenance and operating costs. The nozzle assembly thus contributes significantly to the efficiency of the device.

The stiction-increasing agent ensures a stable cohesion of the stack.

The nozzle arrangement is provided for the treatment of at least surface parts already stacked to a stack stackable stacking units by applying the static friction between a treated and an untreated surface area increasing agent at least on an opera area of at least one of the plurality stacked to the stack layer stacking units.

As a stiction-increasing agent is preferably used as a hot glue called hot melt adhesive used. The hot melt adhesive adheres to the at least one surface portion of the at least one stacking unit of the stack layer to which it is applied by its adhesive effect in hot state during application. Although the hot melt adhesive still has an adhesive effect with surfaces in contact after cooling, it no longer has any adhesive effect with surfaces coming into contact. In any case, the hot melt but after cooling a higher coefficient of static friction with a z. B. untreated surface portion of a stacking unit adjacent to the stacking, as untreated surface parts of two stacking units with each other.

The application of the stiction-increasing agent by means of the nozzle arrangement is preferably carried out after grouping the stacking units to the stack layer and particularly preferably before placing or stacking the stack layer at a stacking location on the stack. Accordingly, the nozzle arrangement is preferably arranged between a first device and a second device, wherein in the transfer from the first device to the second device several stacking units are already grouped into a preferably complete stack layer.

Preferably, the application of the stiction-increasing agent during the transfer from a station in which the grouping of the stacking units takes place to a stacking layer, to a device which takes over at least one staple layer produced by grouping of stacking units and hangs on a stacking place on the stack. Accordingly, the nozzle assembly is preferably disposed between a first device and a second device, wherein the first device is a station in which the grouping of the stacking units takes place to a stacking position, and wherein the second device is a device which takes over at least one stacking position produced by grouping of stacking units and hangs on a stacking place on the stack. The station may, for example, be a so-called grouping system or a stacking layer preparation station. By way of example, the second device may be a so-called loading system or a loading device, such as a gripper, a robot arm, a shutter head or the like.

The treatment or the application is particularly preferably with the release of the lower sides of the stacking units of the stack layer of the static friction increasing agent. As a result, contamination of the onward transport to the final storage on the stack provided facilities by adhering to the underside stiction increasing means such. As adhesive, etc., avoided.

The region of the nozzle arrangement is preferably free of a transport device or of parts of a transport device. As a result, a possible contamination of the transport device or parts of such is most effectively avoided.

The nozzle arrangement preferably comprises at least two, preferably at a direction transverse to the transport direction, for example, when transferring the grouped stacking layer from the station in which the stacking units are grouped to the stacking layer, to the device which assumes at least one stacking layer produced by grouping stacking units a stacking place hangs on the stack, arranged carrier mounted nozzles. The carrier may have the shape of a transverse to the transport direction of the stack layer in the transfer over the stack layer cross-arranged bracket.

The one or more nozzles can z. B. for adaptation to differently arranged and / or dimensioned and / or grouped stacking units z. B. consecutively grouped stack layers individually and / or group-driven or be.

Preferably, the nozzles, for example, electric motor, pneumatic, hydraulic, or electronic, z. B. by Piezzoaktuatoren, together or individually arranged to be adjustable in its vertical position. Alternatively or additionally, it is conceivable that the nozzles, for example, as already mentioned, for. B. motor together or individually in its horizontal position, at least transversely are arranged adjustable to the aforementioned transport direction. Moreover, alternatively or in addition to their vertical and horizontal positions, the nozzles may be arranged individually or collectively in their position with respect to a solid angle. By these measures, the nozzles can be optimally aligned individually or grouped on the stack layer or on individual stacking units of the stack layer to at least provide surface sections of at least individual stacking units of the stack layer at least with the static friction increasing means.

For example, to optimally adjust the vertical and / or horizontal position and / or the position of the nozzles, one or more sensors may be provided which z. B. suitable distance signals to the nozzle assembly z. B. passing, grouped into a stack layer stacking units, which in turn are suitable for controlling the position and / or position of individual or groups of nozzles. Preferably, a sensor is provided per nozzle. By using individual sensors per nozzle z. B. a so-called fireplace in the stack forming, briefly summarized under the term vacancies vacancies and / or defects and / or gaps detected in stacking layers and be spared by an order of ineffective in this area stiction increasing agent. As a result, on the one hand, the material consumption of static friction increasing agent is reduced and on the other hand avoid contamination under a vacancy befindlicher facilities and / or a floor. It is important to emphasize that the gaps in the successive stack layers of a stack need not be congruent in their position within the stack layers. The voids of successive stack layers may at least partially overlap one another, whereby the chimney forms, for example, a chimney stack offset from one stack layer to the next. Such a chimney, for example, have an oblique or spirally wound, through the stack through continuous chimney. The voids of successive stack layers can also be completely isolated from each other, so that the chimney does not form a continuous stack through the stack chimney stack. The voids in the successive stack layers of a stack can also be congruent in their position within the stack layers, whereby the chimney forms a vertical and continuous chimney stack in the stack.

In addition, the nozzles can preferably be operated individually or in groups and also switched off again. Also, for controlling the operation and the shutdown of individual or groups of nozzles sensor signals z. B. the already provided for the position and / or attitude control of the nozzles sensors are used.

By means of the sensors and the associated individual and / or collective control of the nozzle z. B. blanks where z. B. are within a stack layer no stacking units, recognized in the gradually by applying the stiction increasing agent treated stacking layers and excluded from application. Also, by means of the sensors, the stacking units of a stacking layer can be recognized, for example, with respect to their position or orientation and / or position within the stacking layer.

A control of the operation of the nozzles in this case also includes an optionally required heating and / or cooling of the nozzles, in particular when using a hot melt adhesive as a stiction-increasing agent.

For example, an adjustment of the nozzle position and / or position as well as the operation and shutdown of the nozzles to different dimensions of stack layers and stacked to a stack layer stacking units can be done by an example sensor-controlled individual control and optionally individual adjustment of the nozzles. As a result, the device can be adapted to handling different stacking units with little effort.

The stack is preferably stacked on a pallet, or the stacking can be provided, for example, when palletizing. As a result, the stack is stacked on a pallet, whereby a repeated stacking of the stack z. B. can be avoided for further transport. This advantage more than compensates for a disadvantage which may arise due to an increased storage space requirement due to a pallet located below the stack.

A second subject matter of the invention relates to a method for applying at least one adhesion-promoting agent to at least one surface section of at least one stacking unit of at least one of a plurality of stacking layers to be stacked in a stack.

The application of the stiction-increasing agent is preferably carried out after grouping the stacking units to the stack layer, and more preferably before placing or stacking the stack layer at a stacking location on the stack.

Particularly preferably, the application takes place during a transfer from a station in which the grouping of the stacking units into one Stacking takes place, to a device which takes over at least one staple layer produced by grouping of stacking units and hangs on a stacking place on the stack. The station may, for example, be a so-called grouping system or a stacking layer preparation station. The device may be, for example, a so-called loading system or a loading device, such as a gripper, a robot arm, a shutter head or the like. At the transfer point there is enough space for the arrangement of a device for applying the static friction increasing agent.

Particularly preferably, the stack layer is moved during the application in the horizontal direction, whereas a device provided for applying can be designed to be stationary at least in that horizontal direction in which the stack layer moves. As a result, an already required movement of the stacking position z. Example, during the transfer of the stack layer from a station at which the grouping of the stacking units takes place to a stack layer, to a device which takes at least one staple layer produced by grouping of stacking units and hangs on a stacking place on the stack, exploited to the static friction applying increasing funds. A movement of the device provided for applying at least in the same direction can be saved.

The application can be carried out particularly preferably with the release of the lower sides of the stacking units of the stack layer of the static friction increasing means. As a result, contamination of the onward transport to the final storage on the stack provided facilities by adhering to the underside stiction increasing means such. As adhesive, etc., avoided.

The application of the static friction increasing agent is preferably carried out sensor-controlled. As a result, z. B. blanks where z. B. within a stack layer no stacking units are recognized and excluded from the application.

The stack is preferably stacked on a pallet, or the stacking can be provided, for example, when palletizing. As a result, a further stacking of the stack z. B. be avoided for further transport.

The application of the friction-increasing agent is preferably carried out without contact. This prevents wear and damage, including stacking units.

Preferably, a nozzle arrangement for the contact-free application of the stiction-increasing agent is used. A nozzle arrangement has in particular the advantage of a particularly good suitability for a non-contact application. In addition, a nozzle arrangement allows for a simple and cost-effective implementation during operation and operation.

As a static friction increasing agent can be used a hot melt adhesive. This is easy and inexpensive to procure and allows a reliable and controlled handling during and after application.

The method may comprise, as an alternative or in addition to the described features, one or more features and / or properties of the device described above. Particularly noteworthy here are properties relating to a collective and / or individual control of optionally provided for applying nozzles or z. B. similar devices in relation to, for example, their operation or their shutdown, where appropriate, their vertical and / or horizontal positioning and optionally their location with respect to a solid angle.

Likewise, the device may alternatively or additionally comprise one or more features and / or properties of the described method. Particularly noteworthy here are features relating to a movement of the stacking layer in the horizontal direction during the application of the static friction increasing means associated with a stationary arrangement of the nozzles provided for applying in the same horizontal direction in which the transport movement of the stacking occurs.

It is important to emphasize at this point that the advantages stated for individual features and properties of the device naturally also apply to similar features and properties of the method and vice versa.

Advantages of the invention over the prior art arise, inter alia, by a much more controlled order of the static friction increasing agent with respect to assignment z. B. only some stiction-increasing agent to be provided stacking units within a stack layer.

Carrying out the application after grouping the stacking units into a stack layer and preferably before or particularly preferably during a transfer of the grouped stack layer to a device which comprises at least one by grouping stacking units manufactured staple layer and hangs on a stacking place on the stack, moreover, allows a particularly simple and cost-effective implementation. The possibility of a simple and cost-effective realization arises inter alia by the fact that no additional facilities along a limited transport space in their space are needed along which the stacking units must be transported. In contrast, the transfer point at which grouped stack layers are transferred to a device which takes over at least one stacking position produced by grouping of stacking units and hangs on a stacking location on the stack, free for the arrangement of an example provided for the application nozzle arrangement.

The application of the stiction-increasing agent after grouping the stacking units to a stacking layer has the additional advantage that reliable stacking of the stack is ensured even in the case of optionally required removal of stacking units on the transport path to the station at which the grouping is undertaken if z. B. not all stacking units of a stack layer are provided with the static friction increasing agent or are. In the prior art, in which the application takes place during the supply to the station, on the other hand, at a removal z. B. damaged or incomplete, based on a z. As repayment provided with the stiction-increasing means stacking units repeatedly the problem of a lack of cohesion of the stack.

Other advantages arise, inter alia, that due to the larger surface z. B. the top of a stack layer compared to the surface z. B. the top of a stacking unit a much more controlled order of the static friction increasing agent in the sense is possible that less excess material past the stacking units z. B. on an optionally located underneath and / or for further transport of the grouped stack layer provided transport device, such as designed as a roller conveyor or conveyor belt as transport, fall or can get.

figure description

In the following, embodiments of the invention and their advantages with reference to the accompanying figures will be explained in more detail. Therein, like reference characters designate like or equivalent elements. Furthermore, for the sake of clarity, only reference symbols are shown in the individual figures, which are required for the description of the respective figure. The proportions of the individual elements to one another in the figures do not always correspond to the actual size ratios, since some shapes are simplified and other shapes are shown enlarged in relation to other elements for better illustration. In a schematic representation:

1 a perspective view of a arranged in a first system for handling stacking units for applying at least one static friction increasing agent on at least one surface portion of at least one stacking unit at least one staple stacked to a stack.

2 a side view of a portion of a second system for handling stacking units with a device for applying at least one stiction-increasing agent on at least one surface portion of at least one stacking unit at least one staple stacked stack to stack.

3 a front view of a detail of a nozzle assembly of a device for applying at least one stiction-increasing agent on at least one surface portion of at least one stacking unit at least one staple stacked to a stack.

The illustrated embodiments are merely examples of how the device or method of the invention may be configured and are not an exhaustive limitation.

One in the 1 to 3 wholly or partially shown device 01 for applying at least one stiction-increasing agent to at least one surface portion 02 at least one stacking unit 03 at least one stacking layer to be stacked up to a stack 04 essentially comprises a nozzle arrangement provided for applying the static friction increasing means 05 ,

The nozzle arrangement 05 is preferred after a station 11 for grouping several stacking units 03 to a stack layer 04 and most preferably even before a device 15 to hang up by grouping the stacking units 03 produced stacking layer 04 provided or arranged at a stacking place on the stack. A suitably trained device 01 for applying at least one stiction-increasing agent to at least one surface portion 02 at least one stacking unit 03 at least one stacking layer to be stacked up to a stack 04 Accordingly, it comprises a static friction increasing means at least on an opera area 02 at least one of several already on the pile aufaufegenden stack layer 04 grouped stacking units 03 applying nozzle arrangement 05 ,

A possible arrangement of the nozzle arrangement 05 in relation to the already to be placed on a stack stack layer 04 grouped stacking units 03 is based on a in the 1 and 2 illustrated plant 10 for handling stacking units 03 clarifies which facility 10 when handling the stacking units 03 a corresponding grouping of the stacking units 03 to stacking layers 04 and the further transport of the finished grouped stack layers 04 arranged for storage on a stack at a stacking place.

1 shows here a plant 10 for handling stacking units 03 , The shown plant 10 may be an end-to-end part of a filling and / or packaging and / or packaging and / or production line, at which end stacking units 03 initially to stacking layers 04 grouped and then the stack layers 04 one after the other at an example following the attachment 10 located stacking z. B. be stacked on provided there pallets.

The attachment 10 includes a transport device 12 by means of the stacking units 03 as well as by grouping the stacking units 03 produced stacking layers 04 are transported in the transport direction illustrated by the arrow T. At the transport facility 12 it may, for example, be a roller conveyor or a conveyor belt. At the transport facility 12 it may alternatively or additionally also be a slider. It is also conceivable that different transport facilities 12 are provided for successive sections along the direction indicated by the arrow T transport direction. In addition, for one or more sections along the direction indicated by the arrow T transport direction, a combination of several, different transport devices 12 be provided. For example, it is conceivable, for example, in a section in which the transfer or takeover of the to a stack layer 04 finished grouped stacking units 03 to a facility 15 takes place, which at least one by grouping of stacking units 03 produced stacking layer 04 takes over and hangs on a stack, for example, on a stack on a stack, for example, designed as a roller conveyor or conveyor belt transport device 12 for transport to the facility 15 is provided, and a z. B. provided as a slide means for the transport of the stack layers of the roller conveyor or conveyor belt in the example designed as a blind head device 15 is provided.

The attachment 10 also includes a station 11 which is a grouping of several stacking units 03 to a stack layer 04 performs. The station 11 For example, it may comprise one or more robot arms and / or grippers, which stacking units 03 z. B. raise and / or grab and / or z. B. on the transport device 12 can move to a desired grouping of stacking units 03 to a stack layer 04 on the conveyor belt 12 to be able to produce. Furthermore, the facility includes 10 at the end of a facility 15 which made the grouped stacking units so produced 03 existing stacking layer 04 takes over and placing the stack layer 04 at a, for example, removed stack space worried on a stack.

The attachment 10 also includes a device 01 for applying at least one stiction-increasing agent to at least one surface portion 02 at least one stacking unit 03 at least one stacking layer to be stacked up to a stack 04 , The device 01 for applying at least one stiction-increasing agent to at least one surface portion 02 at least one stacking unit 03 at least one stacking layer to be stacked up to a stack 04 is here between the station 11 which is a grouping of several stacking units 03 to a stack layer 04 and the institution 15 arranged, which from the grouped stacking units 03 existing stacking layer 04 takes over and hangs on a stack at a stack. By applying the stiction-increasing agent at least on a surface part 02 at least one of a plurality of stacking layers still to be placed on a stack 04 grouped stacking units 03 The stability and cohesion of the stacking units 03 and the stack layers 04 increased within the stack.

2 shows a side view of a part of a plant 10 similar to those in 1 illustrated, which is why a re-description of some of the components of the system 10 with reference to the description too 1 is waived. In the area of the plant 10 in 2 the transfer or transfer takes place to a stack location 04 finished grouped stacking units 03 to a facility 15 which at least one by grouping of stacking units 03 produced stacking layer 04 takes over and hangs on a stack, for example, on a stack, for example. As a transport device 12 Here, for example, a slider may be provided, which is ready to a stacking position 04 grouped stacking units 03 from the station 11 to the institution 15 transported. As a transport device 12 may alternatively or in addition to the optionally provided slide, for example, a roller conveyor or be provided a conveyor belt. Basically, here is any combination of suitable transport facilities 12 for one or more sections along the direction indicated by the arrow T transport direction and / or of various transport devices 12 for successive sections along the direction indicated by the arrow T transport direction conceivable.

At the device 15 which are the ones from the grouped stacking units 03 existing stacking layer 04 takes and hangs on a stack on a stack hangs, for example, is a so-called loading system or a loading device, such as a gripper, a robot arm, a shutter head or the like.

As in the 1 and 2 the nozzle arrangement can be seen 05 the device 01 between the station 11 , on or in the grouping of the stacking units 03 to a stack layer 04 takes place, and the institution 15 be arranged, which at least one by grouping of stacking units 03 produced stacking layer 04 takes over and hangs on a stack at a stack. The device 01 with her nozzle arrangement 05 is located exactly in the area in which the transfer from the station 11 to the institution 15 or takeover by the institution 15 from the station 11 takes place. Preferably, the application of the stiction-increasing agent during the transfer or takeover of the stack layer also takes place 04 from the station 11 to the institution 15 instead of. In this case, the stack layer is moved in the direction of the transport direction indicated by the arrow T, so that a relative movement required, for example, for a surface application of the static friction, is achieved solely by the transport of the stack layer 04 is generated in the direction of transport and on a movement of the nozzle assembly 05 can be dispensed with in this direction.

A movement of the nozzle assembly provided for the application 05 the device 01 at least in the same direction as the transport direction indicated by the arrow T, can be saved. Thus, the nozzle assembly 05 be formed stationary at least in the direction indicated by the arrow T transport direction.

Below the device 01 preferably there is no transport device 12 and more preferably also no parts of such a transport device 12 , This can lead to no pollution of transport equipment 12 and / or their parts come through a possibly dripping, the static friction increasing agent.

The nozzle arrangement 05 is preferably above the already to be placed on the stack stack layer 04 grouped stacking units 03 intended. This results in the application of the static friction increasing agent, leaving the undersides of the stacking units 03 the stacking layers 04 , One possible type of arrangement of the nozzle arrangement 05 above the already to be placed on the stack stack layer 04 grouped stacking units 03 is based 3 clear.

3 shows parts of a nozzle assembly 05 a device 01 for applying at least one stiction-increasing agent to at least one surface portion 02 at least one stacking unit 03 at least one stacking layer to be stacked up to a stack 04 , The nozzle arrangement 05 comprises at least two nozzles, which the static friction increasing means without contact at least on a surface portion 02 at least one stack already to be stacked 04 grouped stacking unit 03 Instruct.

The nozzle arrangement 05 for example, a carrier 06 include, for example, in the form of a transversely to the direction indicated by the arrow T transport direction of the stack layer 04 at the transfer from the station 11 to the institution 15 over the stack layer 04 overarching stirrups 07 is trained. At the temple 07 can be arranged in a vertical direction adjustable traverse 08 be provided, which means 09 has for receiving nozzles. As in 3 can be seen, for example, four means 09 be provided for receiving a total of four nozzles. By a vertical adjustment of the traverse 08 can those from the means 09 held nozzles are adjusted collectively in its vertical position.

The traverse 08 , and thus the nozzles and the means 09 for receiving the nozzles, for example, electric motor, pneumatic, or hydraulically adjustable in its vertical position.

In addition, the funds can 09 for the control of nozzles have controllable and / or presettable means for pivoting the positions of the nozzles with respect to a solid angle. As a result, the layers of the nozzles, for example, for applying the static friction increasing agent to z. B. surface lots 02 located between the top and bottom lateral surfaces of the stacking units 03 a stacking layer 04 individually and / or collectively.

At the media 09 for receiving nozzles each one or more sensors for detecting z. B. position or orientation and / or position of the stacking units 03 within one stack layer 04 be arranged. The sensor signals generated by these sensors can be used for collective and / or individual control of the nozzles. For example, the control may relate to a targeted individual operation or the shutdown of one or more nozzles. As a result, for example, voids within a stack layer 04 excluded from the application of the stiction-increasing agent.

By an example, sensor-controlled individual control and optionally individual adjustment of the nozzle z. B. in relation to which, for example, an adaptation of the nozzle position and / or position and the operation and shutdown of the nozzles to different dimensions of stack layers and grouped into a stack layer stacking units. This allows the device with little effort to different stack layers 04 with z. B. different and / or differently arranged stacking units 03 be adjusted.

It is important to emphasize that during the application of the static friction increasing agent by means of the nozzle assembly 05 in the 1 to 3 wholly or partially shown device 01 the stack layer 04 during the application in the horizontal direction along the direction of transport illustrated by the arrow T under the bracket 07 the nozzle assembly 05 can be moved through.

It is also important to emphasize that although provided below the means for applying the static friction increasing means 01 preferably no transport device 12 and more preferably also no parts of such a transport device 12 This does not exclude that, for example, at a transfer point of a so-called grouping, where stacking units 03 to a stack layer 04 be grouped to a facility 15 which at least one by grouping of stacking units 03 produced stacking layer 04 takes over and hangs on a, for example, distant stacking on a stack, at which transfer point particularly preferred the device 01 is arranged, for example, a preferably foldable Überub sheet may be present. In the folded up position, such a fold-over blanking plate, on the one hand, can act as a stop during grouping of the stacking units 03 to a stack layer 04 serve and on the other hand, in folded down an optionally existing gap between the Gruppierstation and the device 15 bridging, thereby shifting over to a complete stacking position 04 grouped stacking units 03 from the grouping station to the facility 15 is relieved. The nozzle arrangement 05 the device 01 For example, it can be positioned exactly above such a transfer plate. The Überubblech can be made for example of stainless steel. The use of stainless steel for under the nozzle assembly 05 the device 01 arranged Überublubblechs has the advantage that this most stiction between adjacent stacking units 03 can not adhere to increasing means and, for example, can be easily wiped off.

The invention has been described with reference to a preferred embodiment. However, it will be apparent to those skilled in the art that modifications or changes may be made to the invention without departing from the scope of the following claims.

The invention is industrially applicable, for example, in the manufacture and operation of facilities for handling stacking units.

LIST OF REFERENCE NUMBERS

01

contraption

02

surface section

03

stacker

04

stack layer

05

nozzle assembly

06

carrier

07

hanger

08

traverse

09

medium

10

investment

11

station

12

transport means

15

Facility

T

transport direction

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• US 5895540 [0003]
• US 7048817 B1 [0005]
• US 4365710 [0007]
• EP 2107009 A1 [0009]

Claims (15)

Contraption ( 01 ) for applying at least one stiction-increasing agent to at least one surface part ( 02 ) at least one stacking unit ( 03 ) at least one staple layer to be stacked up to a stack ( 04 ), characterized by a nozzle arrangement for applying the static friction increasing means ( 05 ). Device according to claim 1, wherein the nozzle arrangement ( 05 ) after a grouping of several stack units ( 03 ) to a stack layer ( 04 ) and before placing the stack layer ( 04 ) is provided at a stacking place on the stack. Device according to claim 2, wherein the nozzle arrangement ( 05 ) between a station ( 11 ), in which the grouping of stacking units ( 03 ) to a stack layer ( 04 ) and a facility ( 15 ), which at least one by grouping of stacking units ( 03 ) produced stacking layer ( 03 ) and is placed on a stack on the stack hangs, is arranged. Apparatus according to claim 1, 2 or 3, wherein the nozzle arrangement ( 05 ) above the already to be placed on the stack stack layer ( 04 ) grouped stacking units ( 03 ) is provided so that the application, leaving the lower sides of the stacking units ( 03 ) the stack layer ( 04 ) is carried out by the friction-increasing agent. Device according to one of claims 1 to 4, wherein the nozzle arrangement ( 05 ) comprises at least two nozzles. Apparatus according to claim 5, wherein the nozzles are arranged adjustable in their vertical and / or horizontal position and / or in their position with respect to a solid angle. Apparatus according to claim 5 or 6, wherein at least one sensor is provided, which in dependence on position and / or position of stacking units ( 03 ) and / or blanks in the stack layer ( 04 ) generates variable sensor signal for individual and / or collective control of the vertical and / or horizontal position and / or the position with respect to a solid angle and / or the operation and / or the shutdown of the nozzles. Device according to one of claims 1 to 7, wherein a hot melt adhesive is provided as a static friction increasing means. Device according to one of claims 1 to 8, wherein an area in which the nozzle arrangement ( 05 ) is provided, free of transport and / or further transport of the plurality of grouped stacking units ( 03 ) prepared stacking layer ( 04 ) transport device ( 12 ) or parts of such a transport device ( 12 ). Method for applying at least one stiction-increasing agent to at least one surface part ( 02 ) at least one stacking unit ( 03 ) at least one staple layer to be stacked up to a stack ( 04 ), characterized in that the application of the static friction increasing agent takes place without contact. A method according to claim 10, wherein the application of the stiction-increasing agent after grouping the stacking units ( 03 ) to the stack layer ( 04 ) and before placing the stack layer ( 04 ) at a stacking place on the stack. Method according to claim 10 or 11, wherein the application during a transfer from to a stack layer ( 04 ) grouped stacking units ( 03 ) to a body ( 15 ), which at least one by grouping of stacking units ( 03 ) produced stacking layer ( 04 ) and hangs up on the stack at a stacking place. Method according to claim 10, 11 or 12, wherein the stack layer ( 04 ) is moved during the application in the horizontal direction (T). Method according to one of claims 10 to 13, wherein the application, leaving free the undersides of the stacking units ( 03 ) the stack layer ( 04 ) is carried out by the friction-increasing agent. The method of any one of claims 10 to 14, wherein the stack is stacked on a pallet.

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