WO2008034303A1

WO2008034303A1 - Packaging film stayguy and production method thereof

Info

Publication number: WO2008034303A1
Application number: PCT/CN2006/002716
Authority: WO
Inventors: Bifeng Chen
Original assignee: Bifeng Chen
Priority date: 2006-09-19
Filing date: 2006-10-16
Publication date: 2008-03-27
Also published as: CN100572211C; CN1919698A

Abstract

A packaging film stayguy is of a strip structure with a certain width, and at least one side edge (11,12) of the stayguy (1) is a shaped edge that varies periodically. A production method of the stayguy includes the following steps: making a circular cutter (5) rotate and cut on a piece of entire packaging film, which the cutter is provided with several sets of juxtaposed modeling blades (51), and then machining the entire packaging film into many strips of packaging film stayguys, which at least one side edge (11,12) of each stayguy (1) is a shaped edge that varies periodically. The inventive packaging film stayguy has a reasonable structure and a unique shape with antifake function.

Description

Packaging film cable and manufacturing method thereof

The present invention relates to the field of packaging film opening structures, and more particularly to a wire drawing structure for unpacking and unsealing articles of cigarette packages or packaging films, and a manufacturing method and apparatus therefor.

technical background

The opening structure of the existing cigarette packaging film is to set a loop of the wire at the position of the opening of the cigarette packet. When the cigarette is to be unsealed, it is only necessary to pull the end of the wire, pull it in the direction of the wire, and rotate around the cigarette box. The cigarette packaging film can be divided into two to open the packaging structure. This structure is convenient to use, so it has been used ever since. However, with the further development of the packaging industry, this structure also has its own shortcomings and shortcomings. The existing side of the cable structure is linear, so the shearing force on the film is small, and the section of the film often deviates from the cable during the pulling process, which causes the outer packaging film to be broken, which is not good for waterproofing the cigarette case. , the shape is not beautiful. Moreover, the existing side of the cable structure is linear, and there is no difference in the packaging of each manufacturer. In today's diversified and personalized development of packaging, merchants' requirements for packaging are no longer limited to practicality, but further require packaging to be unconventional and distinctive. Moreover, the existing technology for fabricating the linear side wire drawing structure is very mature, and many small packaging factories can produce it without technical difficulty.

The existing straight-line side wire drawing structure mainly adopts a straight knife wire cutting production method, that is, a so-called razor type process, which winds a whole film through a row of parallel straight knives and cuts into a plurality of straight sides. Pull the line. There is another type of scissors-type process, in which two sets of upper and lower cutting edges are closely rotated by the upper and lower roller knives, and the film is passed between them, that is, it is cut into a plurality of pulling wires. However, the above process can only produce the pull wire on the side of the straight line, and the shape of the side of the pull wire cannot be processed. The shape of the product is single and cannot be applied to the personalized package. The existing processing technology that can perform the line shape cutting of the whole structure mainly adopts the die cutting method, for example, in the papermaking industry, a die cutting knife is used to pattern a whole piece of paper. However, the die cutter is a flat knife, that is, a die cutter blade having a pattern on a flat or round roller, the purpose of which is to cut the paper into a desired pattern, and the die cutter has a cost, which causes A lot of material is wasted. And because the film material is thinner than paper and has better toughness and flexibility, the use of a flat die cutter may cause some of the film to be cut, so the existing die cutter is not suitable for film molding. Summary of the invention

The primary object of the present invention is to overcome the deficiencies in the prior art and to provide a packaging film cable structure having a reasonable structure, a unique shape and an anti-counterfeiting function.

It is a further object of the present invention to disclose a method and apparatus capable of producing the above-described film pull wire.

The present invention achieves its object by the following technical means.

The packaging film cable provided by the present invention has a strip-like structure having a certain width like the conventional wire, and the special feature is that at least one side of the wire is a periodically-shaped shaped edge. The structure with the special-shaped edge can improve the shearing force of the cable on the packaging film during the process of unpacking the cigarette, thereby facilitating unpacking during the unsealing process, not easily pulling the packaging film, and maintaining the integrity of the film well. The cigarette package after unpacking also has a certain waterproof ability, and the outer package is beautiful and generous. The shaped edges of the cable can be in a variety of shapes. For example, different shapes of sides can be designed for different cigarette brands. Different brands of cigarettes are novel and different from other brands. On this basis, the cable can be further developed into a carrier of information. A brand of cigarettes is fixed with a styling cable and has its own unique design points for distinguishing other brands of cigarettes. Buyers can even distinguish between different manufacturers, different brands, and even different quality grades of cigarettes by drawing the shape of the wire. Therefore, the present invention can also be used as an information carrier for identification by a user. The process of producing the drawn wire with non-linear side is completely different from the existing straight-line drawing process, and has certain manufacturing difficulty. Therefore, the existing drawing process structure method cannot be used. And if different brands of cigarettes use different shapes and different specifications of the cable structure, the counterfeit manufacturers are difficult to produce the same shape and specification of the pull wire, and another point is difficult to keep up with the changes and diversification of the cable structure. Therefore, the use of the present invention on a cigarette or other merchandise package can function as an anti-counterfeiting function, and the user or the purchaser can identify whether it is genuine by recognizing the shape and specifications of the cable.

The cable structure of the present invention may have a side edge or both side edges which are periodically changed. In order to facilitate industrial production, the non-linear side shape is periodically changed with a certain regularity. If the two sides have a non-linear shape, the upper and lower shapes can be the same or inconsistent, and the upper and lower shapes can be aligned or offset by 0 to 1/2. The shape of the non-linear side can be varied. For example, the toothed edge can be a rectangular, trapezoidal, triangular or curved regular pattern, or even a combination of several regular patterns, or a combination with a straight line. And so on. A variety of shapes can be applied to a variety of types of products, making each product The products have their own characteristics and play an anti-counterfeiting function as an information carrier. The best non-linear side structure should use a smooth transition curve edge, such as a periodically varying sine or other function curve.

The invention further discloses a method for manufacturing the above-mentioned packaging film cable. The method is further improved on the existing round knife processing technology, and the circular knife having a plurality of sets of parallel molding blades is rotated on a whole packaging film. Cutting, the whole packaging film is processed into a plurality of wires with at least one side being a periodically varying shaped edge. The improved round knife machining process is capable of producing a wire having a profiled edge having at least one side that changes periodically, which is an effect that cannot be produced by the prior art.

The packaging film is supported along both sides of each film cutting line by a support roller, and the circular knife suspends the cutting film along the film cutting line. The method of hanging the cut can reduce the contact between the round knife and the support roller, avoid the damage of the support roller to the round knife, and the loss of the cutting blade during the cutting process. It ensures the continuity of production and greatly reduces production costs. Since the film is a flexible material, it is easily deformed. When the film is suspended and cut on the support roller, if the film is only in point contact with the support roller, the support force of the roller to the film is insufficient, and due to the deformation, it is impossible to ensure that all the films on the cutting line are continuous. Cutting, if one of the cutting lines is not cut, the film will be distorted and the entire production process must be stopped. Therefore, in the process of cutting, the film preferably has a certain wrap angle on the support roll, and the wrap angle can be between 5 and 120 degrees, and the optimum angle is about 90 degrees. Such a cutting method makes the film and the supporting roller face-to-face contact, the contact surface around the cutting point plays a role in supporting the film, and due to the existence of the film tension, the surface contact form can ensure that the film does not exist at the cutting point. The micro-deformation ensures that each cutting line of the film can be continuously cut during the cutting process.

In view of the above method, the present invention devises an apparatus for manufacturing a packaging film cable, the invention of which focuses on the cutting portion of the film, mainly comprising a circular knife and a supporting roller, a circular knife and a supporting roller provided with a plurality of sets of parallel shaped blades. The film passing between the two is rotated up and down, and the blade of the styling blade at least partially enters the support roller during the process of manufacturing the wire. The film transfer of the device and the retraction of the cable can be carried out using existing process technology. The invention is similar to the existing scissors type process, and adopts the structure of the upper and lower rollers, but the existing scissors type process adopts the structure of the upper and lower round knives, and each round knife on the upper and lower sides needs to be closely attached to realize the cutting, the device Cannot be applied to the production of wires with shaped edges. The lower roller of the solution of the invention is a supporting roller, which does not play the role of cutting, so that only the shape of the blade of the upper circular knife can be changed, so that at least one side of the cut wire can be shaped to have a shaped edge, the shape and the blade The knife edge is consistent. Since the overall structure of the pull wire is a strip-like structure having a certain width, the circular knife of the present invention employs a plurality of blades juxtaposed in a manner and structure to cut a whole film into a desired shape. Since at least one side of the wire is a periodically-shaped shaped edge, the shape of the blade of the partial blade is periodically changed, so that the side of the wire can be cut into a desired periodic shape during the process of rotating the circular knife. For example, the shape of the knife edge changes in a sinusoidal function, and the shape of the blade is triangular, rectangular, and the like. Since the shape of at least one side of the wire of the present invention changes periodically, if only one side is a profiled edge, the blade on the round knife can be arranged between the shaped blade and the straight blade, and the adjacent two are cut out. The shaped edges or straight sides of the strips are side-to-side, and no scraps are generated, so no material waste is caused. If the two sides of the pull wire are all-shaped edges, then the round knife can be used with a plurality of sets of profiled blades juxtaposed, and the shaped edges of the adjacent two pull wires are cut to each other, and no scrap is generated. For the cable structure with different shaped edges on both sides, it is convenient to simply replace the arrangement of the blades of different shapes.

In the process of rotating the circular knife and the supporting roller to cut the film passing between them, in order to ensure that each cutting line of the film is completely cut, the cutting edge of the molding blade at least partially enters the supporting roller, and the contact type and the non-contact type can be used. Cutting method. During the contact cutting process, the support roller functions as an anvil plate, and the structure includes a rigid core body and a flexible outer casing, and the outer casing is sleeved on the core body. The rigid core can provide some support, while the flexible outer sleeve avoids the damage of the support roller to the blade of the round knife. The contact type cutting method is convenient and simple to implement, but the control is difficult. It is necessary to make the blades for each rotation cut fall on the cutting opening of the same flexible outer casing. If there is slight error, the cutting opening will become wider and wider, and finally It does not support the film. The film will be deformed during the cutting process, resulting in the suspension of production, the replacement of a new flexible jacket, reduced production efficiency and increased costs. Since the error is unavoidable, the flexible jacket must be replaced after a period of use. In order to improve production efficiency, reduce cost, and reduce the frequency of replacement of flexible jackets, it is necessary to improve the precision of control, and ensure that the blades should fall on the same cutting opening as much as possible during each cutting process.

Compared with the contact cutting method, the non-contact cutting method does not cause loss to the support roller. The structure of the support roller includes a plurality of support rings and washers arranged laterally between each other. The diameter of the support ring is larger than the diameter of the washer to form a plurality of "concave" The structure of the glyphs arranged horizontally. During the cutting process, the film is suspended and supported on the adjacent support ring, and the cutting line is located between the two support rings. During the cutting process, the blade of the molding blade at least partially enters the support roller, and the adjacent two supports The distance of the circle can accommodate the insertion of the edge of the round knife. Since the knife edge is shaped, it has a certain width, and the distance between two adjacent support rings is preferably equal to the width of the knife edge, that is, the width of the profiled side of the wire. However, due to the presence of errors, the distance is generally slightly larger than the width of the knife edge, just to accommodate the insertion of the front end of the knife edge. The insertion depth is less than the difference between the support ring and the washer radius, so that the blade will not be cut into the gasket, resulting in loss of the support roller.

Since the blade is a critical and very fragile component during the cutting process, once one of the blades is damaged, the entire device will be shut down and even damage the device. Therefore, if the blade is in normal operation, it is also the key to the present invention. Since the blade is inserted between the adjacent two support rings during the cutting process, if the control is slightly inaccurate, the blade will collide with the support ring, causing the blade or the support ring. Damage. In order to avoid this, the improved support ring structure of the present invention is composed of two rigid support rings and an intermediate elastic support ring. Such a support ring structure has a certain deformable space in the lateral direction. When the blade has an error of rotating left and right fluttering during the cutting process, the elastic support ring can allow a certain deformation, and the protection blade does not collide with the rigid support ring. The rigid support ring protects the support roller from damage when the blade moves in the left and right error. Thus, the function of "silent direction" protection is realized, which ensures the normal operation of the device.

In order to ensure that during the start of the cutting, the cutting edge of each blade on the round knife can accurately enter the interval between the adjacent support rings, and the circular knife and the supporting roller are provided with means for cooperating positioning. One of the simple structures is a positioning plate provided on the circular knife, and the support roller is provided with a positioning groove that cooperates with the positioning plate. The positioning plate is rigidly connected to the round knife. When it is just inserted into the positioning groove, each blade on the circular knife just falls into the space between each adjacent support ring to play a positioning role. If the positioning disc is made of a rigid material, it can also reduce the rotation error of the blade rotation during the rotation.

In the above method, it is required that the film has a certain wrap angle to the support roll during the cutting process to have an optimum cutting effect, so that the film can be passed through the parallel by setting a parallel press roll or a spread roll lower than the support roll. After the pressure roller or the stretching roller passes through the support roller, it has a certain wrap angle. It is also possible to further adjust the wrap angle by adjusting the position of the parallel press roller or the spread roller.

In order to cut a continuous and beautiful wire drawing structure, the shape of the side-by-side modeling blade on the circular knife of the present invention changes periodically, and the shape thereof may be a periodically changing sinusoidal curve, a rectangle, a trapezoid, a triangle or an arc, and the adjacent two pieces are shaped. The shape of the blade is staggered by 0 ~ 1/2 phase.

The present invention has the following outstanding substantive features and significant advances over the prior art. - 1. At least one side of the pull wire is a special-shaped edge with a periodic change, which can improve the shearing force of the pull wire on the packaging film, and the tube is easy to be unsealed;

2. For different manufacturers, brands and even quality cigarettes, use different side shapes or specifications of the cable, so that the cable has the information carrier and anti-counterfeiting function;

3. There are many variations in the shape and specifications of the side of the cable, which can be applied to the needs of multiple brands and multiple manufacturers.

4. The structure is simple and reasonable, and can reflect the individualization of the package;

5. The method of cutting the film by the modified round knife can produce a profiled side wire structure which cannot be produced by technology;

6. The improved round knife can be easily applied to the production of various shapes of cable;

7. The method of hanging and cutting can avoid the damage of the support roller to the round knife, and the loss of the cutting roller during the cutting process, which ensures the continuity of production and greatly reduces the production cost;

8. During the cutting process, the cutting method of the film with a certain wrap angle on the supporting roller can ensure that each pulling wire can be cut off, ensuring the stability of production;

9. The support ring adopts the structure of two rigid support rings and the middle elastic support ring on the left and right sides to play the role of "two-way" protection.

DRAWINGS

1 is a schematic view showing a structure of a prior art cable drawing package;

2A is a schematic structural view of a wire drawing embodiment 1 of the present invention;

Figure 2B is a cross-sectional view showing the state of use of the wire drawing embodiment 1;

3 is a schematic structural view of a wire drawing embodiment 2;

4 is a schematic structural view of a wire drawing embodiment 3;

Figure 5 is a schematic structural view of the wire drawing embodiment 4;

Figure 6 is a schematic structural view of the wire drawing embodiment 5;

Figure Ί is a schematic structural view of the wire drawing embodiment 6;

Figure 8 is a schematic structural view of the wire drawing embodiment 7;

Figure 9 is a schematic structural view of the wire drawing embodiment 8;

Figure 10 is a schematic structural view of the wire drawing embodiment 9;

Figure 11 is a schematic structural view of a wire drawing embodiment 10; Figure 12 is a schematic structural view of the wire drawing embodiment 11;

Figure 13 is a schematic structural view of the wire drawing embodiment 12;

Figure 14 is a schematic structural view of the wire drawing embodiment 13;

15A is a schematic structural view of Embodiment 1 of a manufacturing apparatus of the present invention;

Figure 15B is a view showing the state of use of Figure 15A;

Figure 15C is a schematic view showing the structure of the support roller after the use of the embodiment 1 for a period of time;

16A is a schematic structural view of Embodiment 2 of a manufacturing apparatus of the present invention;

Figure 16B is a view showing the state of use of Figure 16A;

Figure 16C is an enlarged cross-sectional view showing the circular knife and the support roller in the use of Example 2;

16D is a structural drawing diagram of a circular knife of Embodiment 2;

Figure 17 is a partial structural view showing the first embodiment of the circular knife of the present invention;

Figure 18 is a partial structural view showing a second embodiment of the circular knife of the present invention;

Figure 19 is a partial structural view showing the third embodiment of the circular knife of the present invention;

Fig. 20 is a partial structural view showing the fourth embodiment of the circular knife of the present invention.

detailed description

The invention will be further described in detail below with reference to the accompanying drawings.

1 is a schematic structural view of a conventional cigarette packaging box. A film package 2 is wrapped on the outer side of the packaging box 3. At the opening of the packaging box 3, a strip-shaped cable 1 is attached to the inner side of the film package 2, and the cable 1 is provided. A pull port 4. In the course of use, as long as the tab 4 is pulled apart and pulled apart along the side of the package 3, the film package 2 can be torn by the shearing force of the film package 2 by the wire 1. As shown in the figure, the existing side of the pull wire 1 has a linear structure, and the shearing force on the film is insufficient when the film package 2 is opened, and the open opening is often not linear. , will even pull the film packaging 2 . Moreover, the existing cable 1 embedded in the cigarette film package 3 has a straight-line structure, and there is no difference between any manufacturer, brand and quality cigarette. In order to avoid confusion and make the packaging more personalized, many cigarette manufacturers print patterns or text on the thread, but because the width of the thread is very thin, the printed pattern or text is small and difficult to identify. Also, printing on the pull wire 1 may affect the appearance of the overall structure of the cigarette package, making it very uncoordinated.

Pulling wire embodiment 1

In order to overcome the above disadvantages in the prior art, the present embodiment provides a novel packaging film cable 1, such as As shown in Fig. 2A, the structure is a strip-like structure having a certain width, and the sides 11 and 12 of the pull wire have a sinusoidal shape which changes periodically, and the shapes 11, 12 and positions on both sides completely correspond. At the time of packaging, as shown in Fig. 2B, the cable 1 is embedded between the packaging film 2 and the packet 3. In use, the pull wire 1 is pulled by hand in a direction perpendicular to the packaging film 2, as indicated by the hollow arrow in the figure. Under the action of the pulling force, the shearing force F generated by the side edges 11, 12 of the wire 1 on the film package is greater than the shearing force F of the existing straight wire. The film package 2 can be easily pulled along the pull wire 1, and the slit of the film package 2 has the same shape as the side of the pull wire 1.

In addition to the structure of Embodiment 1, the present invention can be used in a variety of shapes and can be used for identification of cigarette packages of different manufacturers, brands and qualities, as shown in the following examples.

Pulling wire embodiment 2

As shown in Fig. 3, one side edge 11 of the pull wire 1 changes periodically with a sinusoidal curve, and the other side edge 12 retains the existing straight edge edge structure. During use, the opening of the film package is in a straight line with a sinusoidal change on one side. The wire and opening structure different from that of the embodiment 1 have unique characteristics on the package.

Pulling wire embodiment 3

The two side edges 11, 12 of the pull wire 1 of this embodiment are identical in shape to the first embodiment. As shown in Fig. 4, the main difference is that the phases of the upper and lower sides 11, 12 are different by half a cycle. When used, the opening of the film package is similar to that of Example 1, and can be used as an indication of a cigarette of comparable quality.

Pulling wire embodiment 4

As shown in Fig. 5, the structure of the side edges 11, 12 of the cable 1 of the present embodiment adopts a combination of a straight line and a curved line. Each independent cycle consists of a sinusoidal cycle plus a straight line, which is aesthetically pleasing.

Line embodiment 5

As shown in Fig. 6, the side edges 11, 12 of the cable 1 of the present embodiment adopt a sawtooth shape of a rectangular tooth. The shape of the sawtooth has a completely different visual effect from the shape of the curve of the above embodiment, and the difference can be directly seen, so it can be used to distinguish cigarette packages of different manufacturers.

Pulling wire embodiment 6

This embodiment is similar to the embodiment 5 in that the sides of the sawtooth shape are used. As shown in Fig. 7, the two side edges 11, 12 of the strip-shaped cable 1 are provided with a triangular-shaped sawtooth structure. The upper and lower zigzags differ by 1/4 cycle, which is not completely correct. This shape also has a completely different effect from the curve or rectangle. Pulling wire embodiment 7

As shown in Fig. 8, this embodiment is similar to the embodiment 4 except that the side edges 11, 12 use triangular saw teeth instead of sinusoids, and the upper and lower periodic patterns are not completely opposite.

Pulling wire embodiment 8

The side edges 11, 12 of the pull wire 1 shown in Fig. 9 adopt a trapezoidal zigzag structure, and the upper and lower side edges 11, 12 have opposite shapes and are opposite in period.

Pulling wire embodiment 9

The side edges 11, 12 of the wire 1 shown in Fig. 10 are formed by a trapezoidal shape and a straight line edge, and the upper and lower shapes are opposite to each other, and the periods are opposite.

Pulling wire embodiment 10

The upper and lower sides 11 and 12 of this embodiment adopt different non-linear side structures, as shown in Fig. 11. The lower side 12 of the wire 1 has the same trapezoidal shape and straight line shape as in the embodiment 9, and the upper side 11 has a shape of a semicircular shape and a straight side. The cable 1 on the side of the upper and lower sides can be combined to form a variety of cable 1 structures, which can be used for different types of packaging, and can also be continuously updated to improve the anti-counterfeiting function.

Pulling wire embodiment 11

The side edges 11, 12 of the wire 1 shown in Fig. 12 are formed by a semicircular shape and a straight side, and the upper and lower shapes are opposite to each other, and the periods are opposite.

Pulling wire embodiment 12

This embodiment is further improved in the outer shape of the embodiment 11. The side edges 11 and 12 of the pull wire 1 shown in Fig. 13 are formed by a semicircular shape and a straight side, and each of the cycles is provided with an up and down direction. In the opposite shape, the sides 11 and 12 have the same shape and the same period.

Pulling wire embodiment 13

As shown in Fig. 14, in this embodiment, one side edge 11 of the wire 1 is a shape in which a triangle and a straight line in opposite directions are formed, and the other side edge 12 has a structure in which a straight line is left.

It can be seen from the above embodiments that the structural shape of the present invention can be varied, freely matched, and applied to various types of packages, and is not limited to the above-described shapes and packages of cigarettes. All of the at least one wire structure having a non-linear side is used in the protection field of the present invention for any film or other material packaging. The first wire drawing manufacturing method adopted by the invention adopts a circular knife provided with a plurality of sets of parallel shaped blades to rotate and cut on a whole packaging film, and processes the whole packaging film into a plurality of at least one side to have a periodic variation profile. The side of the cable, its production equipment can be used as follows.

An apparatus for manufacturing a packaging film cable, characterized in that the film cutting portion mainly comprises a circular knife and a supporting roller provided with a plurality of sets of parallel shaped blades, and the circular knife and the supporting roller are arranged up and down to rotate and cut the film passing between the two. The cutting edge of the styling blade at least partially enters the support roller during manufacture of the wire.

Production equipment example 1

As shown in Fig. 15A, an apparatus for manufacturing a packaging film cable, which is a front view and a side view of a film cutting portion, mainly includes a circular blade 5 and a supporting roller 6 provided with a plurality of sets of side-by-side molding blades 51. The circular knife 5 and the support roller 6 are arranged up and down, respectively, around the rotating shafts 53 and 63 to cut the film 1 passing between them, and the blade 52 of the forming blade 51 at least partially enters the supporting roller 6 during the process of manufacturing the wire. The support roller 6 comprises a rigid core 61 and a flexible outer sleeve 62, and the outer sleeve 62 is placed over the core 61. During the process of cutting the film 1, the knife edge 52 will leave a cutting opening 64 on the flexible outer sleeve 62, as shown in the side view. Show. The distance between the adjacent two blades 51 is the width of the wire main body, and the width of the knife edge 52 is the width of the profiled side of the wire, as shown in the figure. In order to maintain the tension of the film 1 during the cutting process, the film 1 may have a certain wrap angle on the support roll 6 by a parallel press roll or a spread roll 8, as shown in Fig. 15B, the film has a support roll 6 A 60 degree wrap angle A. In this embodiment, the contact type cutting method is convenient to implement, but the control is difficult. However, the blade 51 for each rotation cutting must fall on the cutting opening 64 of the same flexible outer casing 62. If there is a slight error, As a result, the cutting opening 64 becomes wider and wider, as shown in FIG. 6C, and finally does not support the film 1, and the film 1 will be deformed during the cutting process, thereby causing the production to be stopped, replacing the new flexible outer casing, and reducing the production. Efficiency, increased costs. Therefore, the present embodiment makes the rigid core body 61 and the flexible outer casing 62 into a structure which can be easily disassembled, and the flexible outer casing 62 can be flexibly replaced during the production process.

Production equipment example 2

As shown in Fig. 16A, an apparatus for manufacturing a packaging film cable, which is a front view and a side view of a film cutting portion, mainly includes a circular blade 5 and a supporting roller 7 provided with a plurality of sets of side-by-side molding blades 51. The circular knife 5 and the supporting roller 7 are arranged up and down, respectively, around the rotating shafts 53 and 73 to cut the film 1 passing between them, and the blade 52 of the forming blade 51 at least partially enters the supporting roller 7 during the process of manufacturing the wire. The support roller 7 of the present embodiment includes a plurality of support rings 72 and washers 71 arranged laterally between each other, the support ring The diameter of 72 is larger than the diameter of the washer 71, and the distance between the adjacent two support rings 72 can accommodate the insertion of the knife edge 52 of the circular knife 5. The film 1 is suspended and supported on the adjacent support ring 72. The cutting line is located between the two support rings 72. The manner of hanging and cutting can avoid the loss of the support roller as described in Embodiment 1, thereby ensuring continuous production. Sex, improve efficiency, and reduce costs.

The support ring 72 is composed of a three-layer structure of two left and right rigid support rings 721, 723 and an intermediate elastic support ring 722 as shown in Fig. 16C. Such a support ring 72 structure has a certain deformable space in the lateral direction. When the blade 51 has an error of rotating left and right fluttering during the cutting process, as shown by the solid arrow in the figure, the elastic support ring 722 can allow a certain deformation, "Let "Open a certain position, as indicated by the hollow arrow in the figure. Thereby, the protection blade 51 does not collide with the rigid support ring 723, and the rigid support ring 723 can protect the support roller 7 from damage when the blade 51 moves in the left and right error. This realizes the "two-way" protection function and ensures the normal operation of the equipment. The distance between the adjacent two blades 51 is the width of the wire main body, and the width of the knife edge 52 is the width of the wire shaped edge, as shown in Fig. 16A.

In order to maintain the tension and supporting force of the film 1 during the cutting process, the film 1 may have a certain wrap angle on the support roll 7 by the parallel press rolls or the spread rolls 8 and 81, as shown in Fig. 16B, parallel pressure The roll or stretcher 81 gives the film 1 greater tension and support, and the film has a wrap angle of eighty on the support roll 7. At the beginning of the cutting, the circular knife 5 is moved up and down to place the film 1 as indicated by the hollow arrow in the figure. In order to ensure that the cutting edge 52 of each blade 51 on the circular knife 5 can accurately enter the space between the adjacent supporting rings 72, the positioning plate 91 is provided on the circular knife 5, and the diameter of the positioning disk 91 is slightly larger than that of the blade 51. The support roller 7 is provided with a positioning groove 92 that cooperates with the positioning plate 91. The positioning plate 91 is rigidly connected to the circular blade 5, and when it is just inserted into the positioning groove 92, each blade 51 on the circular blade 5 just falls into the space between each adjacent support ring 72, thereby positioning . The positioning disk 91 of the present embodiment is made of a rigid material, and can further reduce the error of the rotation of the blade 51 in the process of rotary cutting.

The above production equipment can use different round knife structures according to the needs of producing different shaped wire pull wires. Specific embodiments for arranging the blades on a concentrated circular knife are provided below for reference, but the circular knife structure of the present invention is not limited to the following types

Round knife embodiment 1

As shown in Fig. 17, a front view for a circular knife, a plurality of sets of blades 101 are mounted in parallel on the circular knife 5, and the blade edge structure of the blade 101 is a profiled blade having a sinusoidal periodic change. When a whole piece of film passes The structure of the wire and cable is shown in Figure 2A. And the remaining width on both sides of the film can be adjusted to be the width of one pull line, then the cut lines on both sides of the cut line are shaped sides with a sinusoidal period change on one side, and the other side retains the structure of the straight line, as shown in FIG. It can be seen that there is no scrap after the cutting by the circular knife 5, and no waste of the raw material of the film is caused.

Round knife embodiment 2

A circular knife as shown in Fig. 18 is an apparatus for producing a wire drawing structure as shown in Fig. 3. It can be seen that the shaped blade 102 and the straight blade 103 in which the blade edge is sinusoidally changed periodically are arranged on the circular blade 5. . After the film is cut by the circular knife 5, the opposite drawing structure of the structure shown in Fig. 3 is formed, and the pulling lines are two-two, and the distance between the two sides of the film is also adjusted, so that there is no waste of material.

Round knife embodiment 3

If the cable structure shown in Fig. 4 is produced, since the phase of the two side shapes differs by half a cycle, it is necessary to have a corresponding knife edge structure. A circular knife 5 as shown in Fig. 19 is arranged with parallel-shaped blades 104 and 105 having a sinusoidal period change in parallel, and the shapes of the adjacent two blades 104 and 105 are different by half a cycle. When the film is cut by the circular knife 5 into a wire structure as shown in FIG. 4, there is a certain amount of material on both sides, and the width of the side of the film can be adjusted to minimize the cost, or the same as the circular knife embodiment 1. The two sides are cut into a wire structure as shown in FIG.

Round knife embodiment 4

As shown in Fig. 20, this embodiment is a pull wire for producing the structure shown in Fig. 11. As shown in the figure, a circular knife 5 structure is provided with a profiled blade 106 arranged in a semicircular and linear arrangement, and a profiled blade 107 arranged in a trapezoidal and straight line, and the blades 106 and 107 are arranged on the circular blade 5. After the film is cut by the circular knife 5, two types of pull wires can be formed, such as the pull wire structure having different irregular sides as shown in FIG. 11, and the other is a pull wire complementary to the structure of FIG. 11, that is, the side thereof The semicircle or trapezoid is a concave shape. On both sides, a wire drawing structure in which one side is shaped and one side is linear can be cut out, so that there is no problem of material waste.

Claims

Claim

A packaging film cable having a strip-like structure having a width, wherein at least one side of the wire is a profiled edge that changes periodically.

2. The packaging film puller according to claim 1, wherein both sides of the pull wire are irregularly shaped sides which are periodically changed.

The packaging film cable according to claim 2, wherein the shape of the two side edges of the wire is shifted by a phase of 0 - 1/2.

The packaging film puller according to claim 2, wherein the two side edges of the wire are different in shape.

The packaging film puller according to claim 1 or 2 or 3 or 4, wherein the non-linear side is a smoothly transitioning curved side.

6. A package film puller according to claim 5 wherein said curved edge is a periodically varying sinusoid.

The packaging film puller according to claim 1 or 2 or 3 or 4, wherein the non-linear side is a toothed side having a rectangular shape, a trapezoidal shape, a triangular shape or an arc shape.

8. A method for manufacturing a drawn film of a packaging film, characterized in that a circular knife having a plurality of sets of parallel shaped blades is used for rotary cutting on a whole film, and the whole film is processed into a plurality of at least one side for periodic change. The wire of the profiled edge.

The method according to claim 8, wherein the packaging film is supported on both sides of each of the film cutting lines by a supporting roller, and the circular knife suspends the cutting film along the film cutting line.

10. A method according to claim 9 wherein the film has a certain wrap angle on the support roll.

11. An apparatus for manufacturing a packaging film cable, characterized in that the film cutting portion mainly comprises a circular knife and a supporting roller provided with a plurality of sets of parallel shaped blades, and the circular knife and the supporting roller are axially mounted in parallel and rotated and cut in both The film that passes between, during the manufacture of the wire, the blade of the styling blade at least partially enters the support roller.

12. Apparatus according to claim 11 wherein said support roll comprises a rigid core and a flexible outer jacket over the core.

13. Apparatus according to claim 11 wherein said support roller comprises a plurality of support rings and washers arranged laterally between each other, the support ring diameter being greater than the diameter of the pad, and the distance between adjacent support rings for accommodating the circle The knife edge of the knife is 4 inches.

14. Apparatus according to claim 13 wherein said support ring is constructed of three rigid structures of left and right rigid support rings and intermediate resilient support rings.

15. Apparatus according to claim 11 or 12 or 13 or 14, wherein the circular knife and the support roller are provided with means for cooperating positioning.

16. Apparatus according to claim 15 wherein the locating disc is provided on the round knives and the support rollers are provided with locating slots that cooperate with the locating discs.

17. Apparatus according to claim 11 or 12 or 13 or 14, characterized in that one or more parallel press rolls or spread rolls are provided on the outside of the circular knife to provide a certain wrap angle on the support roll.

18. Apparatus according to claim 11 or 12 or 13 or 14, wherein the shape of the juxtaposed blades on the round knife varies periodically.

19. Apparatus according to claim 18 wherein the shape of the side-by-side shaped insert on the round knives is a sinusoidal, rectangular, trapezoidal, triangular or curved shape that varies periodically.

20. Apparatus according to claim 19 wherein the formation of two adjacent shaped blades on the circular knife is offset by a phase of 0 to 1/2.