Background technology
In image processing systems such as duplicating machine, printer, be provided with the supply unit of optical unit, process cartridge unit, fixation unit and recording materials etc.And above-mentioned each unit is by the frame supported of image processing system.
As Fig. 1, a kind of framed structure of prior art of image processing system.This framework comprises the delivery board 150 that is used to carry recording materials, and base plate 110 is fixed in this base plate 110 both sides pair of side plates 120,130, is arranged on by the web 140 between the above-mentioned pair of side plates 120,130.Wherein a pair of base plate 110, side plate 120,130 and web 140 all be to make by metal material, though guaranteed the rigidity of image processing system framework like this but production cost and transportation cost increase, and metal material is heavier, so increased labour intensity to production work, in carrying, brought inconvenience also for the user.And, image processing system in the course of the work, kinematic train is rotated under the drive of motor, thereby makes entire machine vibrations and have noise, so adopt metal base plate 110 shockproof also bad aspect the reduction noise.
In addition, because metal substrate 110 can't directly be installed the regulation plate of media location revisal, thus need on metal substrate 110, increase the very complicated intermediate medium pallet 170 of structure, and then regulation plate 160 is installed on intermediate medium pallet 170 again.Certainly will bring the waste of material like this, be unfavorable for that more image processing system design and production cost reduce.
Summary of the invention
The invention provides a kind of framework of image processing system, to solve frame assembled that conventional images forms device, to safeguard inconvenience and the high technical matters of cost.
In order to solve above technical matters, the technical scheme that the present invention takes is:
A kind of framework of image processing system, comprise and establish substrate, the side plate of a pair of setting independently of one another and the delivery board that is used to carry delivery element, described pair of side plates and delivery board all are arranged on the substrate, it is characterized in that, be between described pair of side plates and delivery board and the described substrate and removably connect, described substrate is plastic part independently.
Also comprise a pair of regulation plate, described substrate is provided with twice and is used to install the regulation plate elongated slot that makes the revisal of print media position.
Be provided with gear between two elongated slots on the bottom surface of described substrate, have tooth bar on the described two regulation plates with described gearing mesh.
The position that described two regulation plates are installed on elongated slot is provided with elastic arm.
Described elastic arm end also is provided with projection.
Also be provided with flexible member on the described elastic arm.
Also comprise web, described web is arranged between the described pair of side plates.
Described web is a plastic material.
The both sides of described substrate are respectively arranged with installation base, and described pair of side plates is connected with described substrate respectively by described two installation bases.
Be connected by the screw mode between described two installation bases and the biside plate.
Also be respectively arranged with two on described two installation bases and be used for the reference column that plays the role of positioning when side plate is installed.
Described substrate just after also be provided with the rear portion boss, described delivery board is connected with described rear portion boss by screw.
After having adopted technique scheme, removably connect owing to be between pair of side plates and delivery board and the substrate, substrate is plastic part independently, its mould can be a small mould, shortened the Production Time of mould like this, reduced die cost, saved production cost effectively, owing to adopted and removably connected, so going wrong, any part all is easy to carry out demolition and maintenance, and the substrate of plastic cement makes the weight saving of whole image processing system, thereby has reduced workman and user's labour intensity.Solve frame assembled that conventional images forms device, safeguarded inconvenience and the high technical matters of cost.In addition, because substrate is simultaneously as the intermediate medium pallet, under the prerequisite that does not influence image formation quality, the parts of image processing system have been simplified, greatly reduce design and production cost, solved conventional images and formed the framework of device because of needing the high technical matters of pallet waste material and cost.
Embodiment
As Fig. 2, as the sectional view of the laser printer 1 of image processing system.Laser printer 1 comprises optical unit 2, sheet feed stacker 3, pickup roller 4, paper-feed roll 5, transfer roll 6, photographic fixing assembly 7, exit roller 8, row's paper disc 9 and be releasably attached to handle box 10 in the laser printer 1 etc., wherein optical unit 2, be used to accept the information that computing machine transports, thereby produce the laser beam that has image information; Sheet feed stacker 3 is used to hold printer paper P; Pickup roller 4, paper-feed roll 5, transfer roll 6, photographic fixing assembly 7 and exit roller 8 have constituted the conveying mechanism of paper P; Pickup roller 4 is used for the printer paper of sheet feed stacker 3 is delivered in the above-mentioned conveying mechanism.After the image transfer printing through handle box 10 and transfer roll 6, again through the photographic fixing effect of photographic fixing assembly 7, the paper of finally finishing printing is discharged to paper disc 9 by exit roller 8, and the user has just obtained the type face of oneself wanting.
Referring to Fig. 2,3, describe supporting the framed structure that above-mentioned image forms each parts.The framework of this printer 1 comprises: the substrate 11 of setting device bottom; Be installed on the pair of side plates 12,13 of substrate about 11; And be arranged at the web 14 between the pair of side plates 12,13 and be used to carry pickup roller 4, paper-feed roll 5, the delivery board 15 of transfer roll 6 delivery elements such as grade.
As Fig. 3,4,6,7, substrate 11 is made by plastic material, has installation base 17 respectively in the left and right sides of substrate 11, each installation base 17 has reference column 18 respectively and the internal thread 19a of usefulness is installed, 19b also has a rear portion boss 20 in the dead astern of substrate 11, also has the internal thread 21 of installing and locating on the rear portion boss 20.Because substrate is small-sized plastic parts, so its mould also can be a small mould, has shortened the Production Time of mould like this, the control die cost has been saved production cost effectively.
As Fig. 6,7,8, on substrate 11, have twice elongated slot 33, this elongated slot 33 is used to install the regulation plate 32 that makes the revisal of print media position.Have section of rack 34 on the described regulation plate 32, this section of rack 34 is installed in the elongated slot 33 of bottom surface side of substrate 11.At the bottom surface side of substrate 11, there is a pinion wheel 35 that is axially fixed at substrate 11 middle of twice elongated slot 33.Be meshed with pinion wheel 35 by two tooth bars 34 that are arranged in the twice elongated slot 33, two regulation plates 32 can move symmetrically, so just the print media that is positioned on the substrate 11 are positioned arrangement, for follow-up ready toward the inner feeding medium of image processing system.Plastic cement system substrate 11 has just been realized the function of intermediate medium pallet like this.
As Fig. 8,9,10, one side of the section of rack 34 of regulation plate 32 has an elastic arm 36, the not end of this arm 36 has a projection 37, and this projection 37 flexibly is connected on the elongated slot wall 33a of respective side, and the braking of regulation plate 32 is exactly to realize by the friction force between elastic arm 36 and the elongated slot wall 33a.Certainly, can add between elastic arm 33a and tooth bar 34 that also flexible member 38 increases friction force as spring.
As Fig. 3,4, pair of side plates 12,13rd, metal making sheet, this is the both sides that are arranged on substrate 11 independently of one another to side plate, is used to support be positioned at each unit or the parts that this forms interpleural image, as handle box 10 etc.This comprises side surface part 12a to side plate 12,13,13a and peripheral edge portion 12b
1, 12b
2, 13b
1, 13b
2, this peripheral edge portion is by rolling the facial 12a of process side laterally, the neighboring of 13a and forming.Consider that from the angle of rigidity optimal way is that its width is more than or equal to 8mm.On side plate 12,13, be formed with a plurality of holes that are used to insert screw and reference column, this hole be positioned at be formed at substrate 11, web 14 and delivery board 15 on the reference column position corresponding with internal thread.This is earlier the peripheral edge portion 12b of side plate 12,13 to metal side plate 12,13 with respect to the installation of substrate 11
1, 13b
1Bottom surface sections be connected on the substrate 11, again by behind the reference column on the installation portion 17 on the substrate 11 18 location, side plate 12, hole on 13 is just corresponding with the internal thread 19a on the installation portion 17, fixed with screw 24 this moment, and this just has been fixed on the substrate 11 side plate 12,13 like this.
As Fig. 3,4, web 14 can be that metal material is made, and also can be to be made by plastic material, and it is arranged between the above-mentioned pair of side plates 12,13, and one is used to link biside plate 12,13, and to guarantee the whole fastness of framework, two are used for bearing optical unit 2.Have a plurality of reference columns 22 and a plurality of internal thread 23 on the web 14 both sides end faces, this reference column 22 be arranged on left side plate 12,13 side surface part 12a, the last corresponding pilot hole of 13a matches, side surface part 12a, and the hole on the 13a is just corresponding with the internal thread 23 on the web 14, this moment is the 12a of portion from the side, 13a stamps the screw 25 as securing member, thereby web 14 vertically is connected between the biside plate 12,13.Optical unit 2 is by reference column and the screw retention central authorities at web 14.
As Fig. 2,3,4,5, be used to carry pickup roller 4, paper-feed roll 5, the delivery board 15 of transfer roll 6 delivery elements such as grade also is to be made by plastic material, it is arranged on the peripheral edge portion 12b of biside plate 12,13
2, 13b
2On substrate 11.Bottom, delivery board 15 middle recess 26 and substrate 11 dead asterns described substrate just after also be provided with rear portion boss 20 and match after, hole on the delivery board 15 is just corresponding with the internal thread 21 on the rear portion boss 20 in substrate 11 dead asterns, is screwed this state.At this moment, the hole on the top, the left and right sides of delivery board 15 respectively with left side plate neighboring 12b
2, 13b
2On internal thread corresponding, matching with internal thread 19b on substrate 11 upper mounting boss 17 respectively in the hole of bottom, delivery board 15 left and right sides, uses screw 27,28 respectively, 29,30 are just fixed delivery board 15 have been fixed on the image forming apparatus.
Thus, the substrate of main frame, these four plates of left side plate and delivery board engage by the composition surface and are next fastening by screw, and the middle body of left side plate upper and lower is linked by web, therefore, can guarantee as the required rigidity of main frame.And the rear portion that fuser is fixed on the top of delivery board and pair of side plates has further been guaranteed the rigidity of main frame.
Because the main frame mounting direction is inequality entirely in the present embodiment, so after the framework assembling finishes, can unload left side plate individually, any in delivery board and the web still can be kept the rigidity of framework.In the time of the rotary body generation problem that is installed on the delivery board or when carrying body self that problem takes place, can unload and carry body to carry out repairing, the replacing of bad part, so carry out the maintenance and the repairing of image processing system easily.
The substrate of image processing system is simultaneously as the intermediate medium pallet, under the prerequisite that does not influence image formation quality, the parts of image processing system have been simplified, design and production cost have been reduced to a great extent, the substrate of plastic cement makes the weight saving of whole image processing system simultaneously, thereby has reduced workman and user's labour intensity.