CN210339584U - Tray carrying and stacking assembly for FPC cleaning - Google Patents

Abstract

The utility model discloses a be used for abluent tray transport of FPC to pile up subassembly for adsorb empty clean tray and transfer stack and load on the finished product tray that carries FPC after the washing, include: the empty tray stacking mechanism is used for stacking empty clean trays; the finished product tray stacking mechanism is used for stacking finished product trays loaded with FPCs; empty tray transport mechanism, empty tray transport mechanism are used for piling up single clean empty tray on the material mechanism with empty tray and adsorb, transport and stack and put on finished product tray piles material mechanism. Pile up piling up of clean empty charging tray through empty tray material stacking mechanism realization, pile up piling up of material stacking mechanism realization finished product tray through finished product tray, adsorb empty tray through empty tray transport mechanism again and pile up single empty tray and transportation on the material stacking mechanism of finished product tray, the utility model discloses compare the artifical empty clean tray of realization and shift and pile up, degree of automation is high, and work efficiency improves.

Description

Tray carrying and stacking assembly for FPC cleaning

Technical Field

The utility model relates to a FPC cleaning equipment technical field especially relates to a be used for abluent tray transport pile up subassembly of FPC.

Background

FPC (Flexible Printed Circuit Board), also called "FPC Flexible Board", is a Printed Circuit made of a Flexible insulating base material, and has many advantages not possessed by a rigid Printed Circuit Board. For example, the device can be freely bent, wound and folded, can be randomly arranged according to the space layout requirement, and can be randomly moved and stretched in a three-dimensional space, so that the integration of component assembly and wire connection is realized. The FPC flexible board can greatly reduce the volume of electronic products, and is suitable for the development of the electronic products in the directions of high density, miniaturization and high reliability. Therefore, the FPC flexible board is widely applied to the fields or products of aerospace, military, mobile communication, laptop computers, computer peripherals, digital cameras and the like.

However, if there is electrostatic dust on the surface of the FPC, the quality and the service life of the electronic product are affected, and thus the surface of the electronic product needs to be cleaned. At present, after the cleaning of the FPC is completed, the clean FPC is placed on a finished product tray, and at this time, an empty clean tray is generally stacked on the finished product tray by a manual work, and then the clean FPC is placed on the empty tray to wait for cleaning, so that the trays of the clean FPC are stacked and piled; however, the empty clean trays are transferred and stacked manually, which results in low work efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the existing method that the empty clean tray is stacked on the finished tray by manpower, and then the clean FPC waiting for cleaning is placed on the empty tray, so that the tray stacking of the clean FPC is realized; however, the empty clean trays are transferred and stacked manually, which causes a problem of low working efficiency.

The utility model discloses a following technical scheme realizes: a tray transport and stacking assembly for FPC cleaning, which is used for adsorbing empty clean trays and transferring and stacking the trays on finished product trays carrying cleaned FPC, comprises:

the empty tray stacking mechanism is used for stacking empty clean trays;

the finished product tray stacking mechanism is arranged on one side of the empty tray stacking mechanism and is used for stacking finished product trays loaded with FPC (flexible printed circuit);

the empty tray conveying mechanism is used for adsorbing, conveying and stacking the single clean empty tray on the empty tray stacking mechanism onto the finished tray stacking mechanism;

and the machine base, the empty tray stacking mechanism, the finished product tray stacking mechanism and the empty tray conveying mechanism are arranged on the machine base.

As a further improvement of the above technical solution, the empty tray transporting mechanism includes:

a fifth supporting seat arranged on the machine base,

a second translational power source which is arranged on the fifth supporting seat,

a connecting portion fixedly connected to a power output side of the second translational force source that moves in the horizontal direction;

and a tray pick and place mechanism connected with the connecting part.

Further, the tray pick and place mechanism includes:

a fourth lifting power source arranged on the connecting part;

a lifting part connected to a power output side of the fourth lifting power source that moves in the vertical direction;

the first sliding rail is arranged on one side of the lifting part and used for guiding the lifting part to move in the vertical direction;

the ninth sliding block is arranged on the connecting part and is in sliding connection with the first sliding rail;

a first connecting frame connected to the lifting unit;

at least one second connecting frame arranged on the first connecting frame,

and the plurality of first vacuum suction nozzles are arranged on the second connecting frame and are used for adsorbing clean empty trays.

As a further improvement of the above technical solution, the empty tray stacking mechanism includes a first limiting mechanism for limiting the periphery of the empty tray stack, a second lifting power source disposed on the base, a second receiving platform connected to a power output side of the second lifting power source, a plurality of first guide posts connected to the second receiving platform, and a first bearing seat disposed on the base and matched with the first guide posts, wherein the first guide posts are slidably disposed in the first bearing seat.

As a further improvement of the above technical solution, the first limiting mechanism includes a first left limiting mechanism disposed on the left side of the second receiving platform, a right first right limiting mechanism disposed on the right side of the second receiving platform, and a fifth limiting member disposed on the front side of the second receiving platform, and the fifth limiting member is close to the front side edge of the empty tray;

the first left limiting mechanism comprises a first supporting seat, a first limiting part and a second limiting part, the first limiting part is arranged on the rear side of the first supporting seat, the second limiting part is arranged on the front side of the first supporting seat, the first limiting part is close to the corner of the left side of the rear end of the empty tray, and the second limiting part is close to the left side of the front end of the empty tray;

the first right limiting mechanism comprises a second supporting seat, a third limiting part and a fourth limiting part, the third limiting part is arranged on the rear side of the second supporting seat, the fourth limiting part is arranged on the front side of the second supporting seat, the third limiting part is close to the corner on the right side of the front end of the empty tray, and the fourth limiting part is close to the right side of the front end of the empty tray.

As a further improvement of the above technical solution, the finished product tray stacking mechanism includes a second limiting mechanism for limiting the periphery of the finished product tray stack, a third lifting power source disposed on the base, a third receiving platform connected to a power output side of the third lifting power source, a plurality of second guide posts connected to the third receiving platform, and a second bearing seat disposed on the base and matched with the second guide posts, wherein the second guide posts are slidably disposed in the second bearing seat.

As a further improvement of the above technical solution, the second limiting mechanism includes a second left limiting mechanism disposed on the left side of the third receiving platform, a second right limiting mechanism disposed on the right side of the third receiving platform, and a tenth limiting member disposed on the front side of the third receiving platform, and the tenth limiting member is close to the front side edge of the finished product tray;

the second left limiting mechanism comprises a third supporting seat, a sixth limiting part and a seventh limiting part, the sixth limiting part is arranged on the rear side of the third supporting seat, the seventh limiting part is arranged on the front side of the third supporting seat, the sixth limiting part is close to the corner part on the left side of the rear end of the finished product tray, and the seventh limiting part is close to the left side of the front end of the finished product tray;

the second right limiting mechanism comprises a fourth supporting seat, an eighth limiting part and a ninth limiting part, the eighth limiting part is arranged on the rear side of the fourth supporting seat, the ninth limiting part is arranged on the front side of the fourth supporting seat, the eighth limiting part is close to the corner on the right side of the rear end of the finished product tray, and the ninth limiting part is close to the right side of the front end of the finished product tray.

As a further improvement of the above technical solution, the first limiting mechanism further includes a third length adjusting mechanism for adjusting the dimension of the first limiting mechanism in the length direction, and a third total width adjusting mechanism for adjusting the dimension of the first limiting mechanism in the width direction;

the third length adjusting mechanism comprises a first left length adjusting mechanism arranged on the first supporting seat and a first right length adjusting mechanism arranged on the second supporting seat;

the first left length adjusting mechanism comprises a second slide rail arranged on the first supporting seat, a second slide block arranged on the second slide rail and used for guiding the first limiting piece to move in the length direction, and a first stopping part connected with the second slide block and used for fixing the position of the second slide block, wherein the first limiting piece is arranged at the top of the second slide block;

the first right length adjusting mechanism comprises a third slide rail arranged on the second supporting seat, a third slide block arranged on the third slide rail and used for guiding the third limiting piece to move in the length direction, and a second stopping portion connected with the third slide block and used for fixing the third slide block at the position of the third slide rail, wherein the third limiting piece is arranged at the top of the third slide block;

the third total width adjusting mechanism comprises a first rear width adjusting mechanism arranged on the rear side of the first supporting seat and a first front width adjusting mechanism arranged on the front side of the first supporting seat;

the first rear width adjusting mechanism comprises a fourth slide rail arranged on the machine base, a fourth slide block arranged on the fourth slide rail and used for guiding the first supporting seat to move in the width direction, a first adjusting plate provided with a first through hole in the width direction, and a first width adjusting piece which penetrates through the first through hole, is connected with the rear side of the first supporting seat and is used for fixing the first supporting seat at the position of the third slide rail, and the fourth slide block is arranged at the rear side of the first supporting seat;

first preceding width adjustment mechanism locates including locating the fifth slide rail on the frame on the fifth slide rail and be used for the guide first supporting seat is equipped with the second regulating plate that is provided with the second through-hole along width direction at the fifth slider that width direction removed, and passes the second through-hole with the front side of first supporting seat is connected, and is used for fixing first supporting seat is in the second width control spare of fifth slide rail position, the fifth slider is located the front side of first supporting seat.

As a further improvement of the above technical solution, the second limiting mechanism further includes a fourth length adjusting mechanism for adjusting the dimension of the second limiting mechanism in the length direction, and a fourth total width adjusting mechanism for adjusting the dimension of the second limiting mechanism in the width direction;

the fourth length adjusting mechanism comprises a second left length adjusting mechanism arranged on the third supporting seat and a second right length adjusting mechanism arranged on the fourth supporting seat;

the second left length adjusting mechanism comprises a sixth slide rail arranged on the third supporting seat, a sixth slide block arranged on the sixth slide rail and used for guiding the sixth limiting piece to move in the length direction, and a third stopping portion connected with the sixth slide block and used for fixing the sixth slide block at the position of the sixth slide rail, wherein the sixth limiting piece is arranged at the top of the sixth slide block;

the second right length adjusting mechanism comprises a seventh slide rail arranged on the fourth supporting seat, a seventh slide block arranged on the seventh slide rail and used for guiding the eighth limiting piece to move in the length direction, and a fourth stopping portion connected with the seventh slide block and used for fixing the seventh slide block at the seventh slide rail position, wherein the eighth limiting piece is arranged at the top of the seventh slide block;

the fourth total width adjusting mechanism comprises a second rear width adjusting mechanism arranged on the rear side of the third supporting seat and a second front width adjusting mechanism arranged on the front side of the third supporting seat; the second rear width adjusting mechanism comprises an eighth slide rail arranged on the machine base, an eighth slide block arranged on the eighth slide rail and used for guiding the third supporting seat to move in the width direction, a third adjusting plate arranged with a third through hole in the width direction, and a third width adjusting piece penetrating through the third through hole, connected with the rear side of the third supporting seat and used for fixing the third supporting seat at the position of the eighth slide rail, wherein the eighth slide block is arranged at the rear side of the third supporting seat;

width adjustment mechanism locates including locating the ninth slide rail on the frame before the second on the ninth slide rail and be used for the guide the third supporting seat is equipped with the fourth regulating plate that is provided with the fourth through-hole along width direction at the tenth slider that width direction removed, and passes the fourth through-hole with the front side of fourth supporting seat is connected, and is used for fixing the third supporting seat is in the fourth width control spare of ninth slide rail position, the tenth slider is located the front side of third supporting seat.

Implement the utility model discloses a beneficial effect includes at least: pile up piling up of clean empty charging tray through empty tray material stacking mechanism realization, pile up piling up of material stacking mechanism realization finished product tray through finished product tray, adsorb empty tray through empty tray transport mechanism again and pile up single empty tray and transportation on the material stacking mechanism of finished product tray, the utility model discloses compare the artifical empty clean tray of realization and shift and pile up, degree of automation is high, and work efficiency improves.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of a tray carrying and stacking assembly for FPC cleaning according to the present invention;

fig. 2 is a schematic view of an embodiment of an empty tray transport mechanism of the tray handling stacking assembly for FPC cleaning of the present invention;

FIG. 3 is a schematic structural view of one embodiment of a pallet pick and place mechanism of the hollow pallet transport mechanism of FIG. 2;

fig. 4 is another schematic structural diagram of an embodiment of a tray picking and placing mechanism of the tray carrying and stacking assembly for FPC cleaning according to the present invention;

fig. 5 is a schematic structural view of an embodiment of an empty tray stacking mechanism of the tray carrying and stacking assembly for FPC cleaning according to the present invention;

fig. 6 is a schematic structural view of an embodiment of a first limiting mechanism of an empty tray stacking mechanism of the tray carrying and stacking assembly for FPC cleaning according to the present invention;

fig. 7 is a schematic structural view of an embodiment of a finished tray stacking mechanism of the tray carrying and stacking assembly for FPC cleaning according to the present invention;

fig. 8 is a schematic structural view of an embodiment of a second limiting mechanism of a finished product tray stacking mechanism of the tray carrying and stacking assembly for FPC cleaning according to the present invention;

fig. 9 is a schematic structural view of an embodiment of a third length adjustment mechanism of the tray carrying stacking assembly for FPC cleaning according to the present invention;

fig. 10 is a schematic structural view of an embodiment of a third overall width adjustment mechanism of a tray carrying and stacking assembly for FPC cleaning according to the present invention;

FIG. 11 is a schematic structural view of one embodiment of a first rear width adjustment mechanism and a first front width adjustment mechanism of the third total width adjustment mechanism of FIG. 10;

fig. 12 is a schematic structural view of an embodiment of a fourth length adjustment mechanism of the tray carrying stacking assembly for FPC cleaning according to the present invention;

fig. 13 is a schematic structural view of an embodiment of a fourth overall width adjustment mechanism of the tray carrying and stacking assembly for FPC cleaning according to the present invention;

FIG. 14 is a schematic structural view of one embodiment of a second rear width adjustment mechanism and a second front width adjustment mechanism of the fourth total width adjustment mechanism of FIG. 13;

reference numerals:

tray handling stack assembly-400 for FPC cleaning;

an empty tray stacking mechanism-41;

a first limiting mechanism-411;

a second elevating power source-412;

a second receiving platform-413;

a first guide post-414;

a first bearing seat-415;

a first left stop mechanism-416; a first support seat-4161; a first limiting member-4162; a second limiting member-4163;

a first right stop mechanism-417; a second support seat-4171; a third limiting member-4172; a fourth limiting member-4173;

a fifth stop-418;

finished product tray stacking mechanism-42;

a second stop gear-421;

a third elevating power source-422;

a third receiving platform-423;

a second guide post-424;

a second bearing housing-425;

a second left stop-mechanism-426; a third support seat-4261; a sixth stop-4262; a seventh stop-4263;

a second right stop mechanism-427; a fourth support seat-4271; an eighth stopper-4272; a ninth stopper-4273;

a tenth stop-428;

an empty tray transport mechanism-43;

a fifth bearer-431;

a second translational force source-432;

a connecting portion-433;

a pallet pick and place mechanism-434; a fourth elevating power source-4341; an elevator section-4342; a first sled-4343; a ninth slider-4344; a first connecting frame-4345; a second connecting frame-4346; a first vacuum nozzle-4347;

a third length adjustment mechanism-44;

a first left length adjustment mechanism-441; a second slide-rail-4411; a second slider-4412; a first stopper-4413;

a first right length adjustment mechanism-442; a third slide-4421; a third slider-4422; a second stopper-4423;

a third total width adjustment mechanism-45;

a first rear width adjustment mechanism-451; a fourth slide rail-4511; a fourth slide-4512; a first via-4513; a first adjusting plate-4514;

a first front width adjustment mechanism-452; a fifth slide rail-4521; a fifth slider-4522; a second through-hole-4523; a second adjusting plate-4524;

a third rear width adjustment mechanism-453;

a third front width adjustment mechanism-454;

a fourth length adjustment mechanism-46;

a second left length adjustment mechanism-461; sixth sliding rail-4611; a sixth slider-4612; a third stopper portion-4613;

a second right length adjustment mechanism-462; seventh slide-4621; seventh slider-4622; fourth stopping portion-4623;

a fourth total width adjustment mechanism-47;

a second rear width adjustment mechanism-471; an eighth sliding rail-4711; an eighth slider-4712; a third through-hole-4713; third regulating plate-4714;

a second front width adjustment mechanism-472; a ninth slide rail-4721; a tenth slider-4722; a fourth through-hole-4723; a fourth modulation plate-4724;

a fourth rear width adjustment mechanism-473;

a fourth front width adjustment mechanism-474.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the term "dirty tray" refers to a tray after the FPC is taken away. At this time, residual electrostatic dust exists on the top surface and/or the bottom surface of the tray, and the tray is required to be stacked and recycled by the tray recycling assembly.

In the present invention, the term "dirty tray stack" refers to a stack formed by stacking "dirty trays" one by one in a vertical direction.

In the present invention, the term "clean tray" refers to a tray in which electrostatic dust does not exist on both sides of the top surface and the bottom surface through the operation of removing static electricity. The tray is used for receiving the FPC with two cleaned sides.

In the present invention, the term "stack of clean trays" refers to a stack formed by stacking "clean trays" one by one in a vertical direction.

Referring to fig. 1, a tray handling and stacking assembly 400 for FPC cleaning, which is used for sucking empty clean trays and transferring and stacking the trays on finished trays loaded with cleaned FPCs, includes: an empty tray stacking mechanism 41, the empty tray stacking mechanism 41 being configured to stack empty clean trays; the finished product tray stacking mechanism 42 is arranged on the right side of the empty tray stacking mechanism 41, and the finished product tray stacking mechanism 42 is used for stacking finished product trays loaded with FPCs; an empty tray conveying mechanism 43, wherein the empty tray conveying mechanism 43 is used for adsorbing, conveying and stacking a single clean empty tray on the empty tray stacking mechanism 41 onto the finished tray stacking mechanism 42, and the empty tray conveying mechanism 43 is arranged at the rear side of the empty tray stacking mechanism 41 and the finished tray stacking mechanism 42; and a base (not shown), on which the empty tray stacking mechanism 41, the finished tray stacking mechanism 42, and the empty tray conveying mechanism 43 are provided.

Referring to fig. 1 and 2, the empty tray transport mechanism 43 includes:

the support device comprises a fifth supporting seat 431 arranged on the base, a second horizontal moving force source 432 arranged on the fifth supporting seat 431, a connecting part 433 fixedly connected with the power output side of the second horizontal moving force source 432 moving in the horizontal direction, and a tray taking and placing mechanism 434 connected with the connecting part 433.

In the embodiment, the second translational force source 432 is a linear sliding table made by TOYO corporation of Japan and having a model number of ETB6-X40-550-BM-57M-E5, and the cylinder can be implemented by a person skilled in the art by using the existing technology, which is not the focus of the present application and will not be described in detail herein.

Referring to fig. 3 and 4, the tray picking and placing mechanism 434 includes:

a fourth lifting power source 4341 arranged on the connecting part 433; a lifting part 4342 connected to a power output side of the fourth lifting power source 4341 that moves in the vertical direction; a first slide rail 4343 provided at one side of the lifting part 4342 and guiding the lifting part 4342 to move in a vertical direction; a ninth slider 4344 fixed to the connecting portion 433 and slidably connected to the first sliding rail 4343; a first connection frame 4345 connected to the top of the lifting part 4342; two second connecting frames 4346 arranged on the first connecting frame 4345 and perpendicular to the first connecting frame 4345; the left and right sides of each second connection frame 4346 are respectively provided with a first vacuum suction nozzle 4347 for sucking a clean empty tray.

In this embodiment, the fourth lifting power source 4341 is an air cylinder having model number CJ2M16-45AZ manufactured by SMC corporation, which can be realized by a person skilled in the art by using the existing technology, and is not the focus of the present application, and will not be described in detail herein.

Referring to fig. 1, 5 and 6, the empty tray stacking mechanism 41 includes a first limiting mechanism 411 for limiting the periphery of the empty tray stack, a second lifting power source 412 disposed on the base, a second receiving platform 413 connected to a power output side of the second lifting power source 412, four first guiding pillars 414 connected to the second receiving platform 413, and a first bearing seat 415 disposed on the base and matched with the first guiding pillars 414, wherein the first guiding pillars 414 are slidably disposed in the first bearing seat 415.

In this embodiment, the empty clean trays are stacked on the second receiving platform 413, and as the empty tray transportation mechanism 43 continuously transports the empty trays to the finished tray stacking mechanism 42, the number of empty tray stacks on the second receiving platform 413 is reduced, the control unit controls the second lifting power source 412 to lift upwards, so as to drive the empty tray stacks on the second receiving platform 413 to lift upwards, so that the empty tray transportation mechanism 43 can adsorb a single empty tray.

In this embodiment, the second elevating power source 412 is a 57-pass stepping motor, which can be realized by a person skilled in the art using the existing technology, and is not a focus of the present application and will not be described in detail herein.

Referring to fig. 6, the first limiting mechanism 411 includes a first left limiting mechanism 416 disposed on the left side of the second receiving platform 413, a right first right limiting mechanism 417 disposed on the right side of the second receiving platform 413, and a fifth limiting member 418 disposed on the front side of the second receiving platform 413, where the fifth limiting member 418 is close to the front edge of the empty tray;

referring to fig. 6, the first left limiting mechanism 416 includes a first supporting seat 4161, a first limiting member 4162 disposed behind the first supporting seat 4161, and a second limiting member 4163 disposed in front of the first supporting seat 4161, wherein the first limiting member 4162 is close to a corner portion of the left side of the rear end of the empty tray, and the second limiting member 4163 is close to the left side of the front end of the empty tray;

referring to fig. 6, the first right limiting mechanism 417 includes a second supporting seat 4171, a third limiting member 4172 disposed behind the second supporting seat 4171, and a fourth limiting member 4173 disposed in front of the second supporting seat 4171, wherein the third limiting member 4172 is close to a corner portion of the right side of the front end of the empty tray, and the fourth limiting member 4173 is close to the right side of the front end of the empty tray.

In this embodiment, the first limiting member 4162 is shaped like an english letter L, the third limiting member 4172 is shaped like an english letter L, and the empty tray is limited in a rectangular region surrounded by the first limiting member 4162, the second limiting member 4163, the third limiting member 4172, the fourth limiting member 4173, and the fifth limiting member 418.

Referring to fig. 1, 7 and 8, the finished product tray stacking mechanism 42 includes a second limiting mechanism 421 for limiting the periphery of the finished product tray stack, a third lifting power source 422 disposed on the base, a third receiving platform 423 connected to a power output side of the third lifting power source 422, a plurality of second guiding posts 424 connected to the third receiving platform 423, and a second bearing base 425 disposed on the base and matched with the second guiding posts 424, where the second guiding posts 424 are slidably disposed in the second bearing base 425.

In this embodiment, the finished trays with cleaned FPC are stacked on the third receiving platform 423, and as the empty tray transportation mechanism 43 continuously transports the empty trays to the finished tray stacking mechanism 42, the finished tray stacks on the third receiving platform 423 are more and more, the control unit controls the third lifting power source 422 to descend, so as to drive the finished tray stacks on the third receiving platform 423 to descend to vacate the space for receiving empty clean trays.

The control unit is responsible for the process management of the tray carrying and stacking assembly program for FPC cleaning, and a person skilled in the art can implement the control unit by using the existing technology.

In this embodiment, the third lifting power source 422 is a 57-pass stepping motor, which can be implemented by a person skilled in the art using the existing technology, and is not a focus of the present application and will not be described in detail herein.

Referring to fig. 8, the second limiting mechanism 421 includes a second left limiting mechanism 426 disposed on the left side of the third receiving platform 423, a second right limiting mechanism 427 disposed on the right side of the third receiving platform 423, and a tenth limiting member 428 disposed on the front side of the third receiving platform 423, where the tenth limiting member 428 is close to the front edge of the finished tray;

referring to fig. 8, the second left limiting mechanism 426 includes a third supporting seat 4261, a sixth limiting member 4262 disposed at the rear side of the third supporting seat 4261, and a seventh limiting member 4263 disposed at the front side of the third supporting seat 4261, wherein the sixth limiting member 4262 is close to a corner of the left side of the rear end of the finished product tray, and the seventh limiting member 4263 is close to the left side of the front end of the finished product tray;

referring to fig. 8, the second right limiting mechanism 427 includes a fourth supporting seat 4271, an eighth limiting member 4272 disposed at the rear side of the fourth supporting seat 4271, and a ninth limiting member 4273 disposed at the front side of the fourth supporting seat 4271, wherein the eighth limiting member 4272 is close to a corner on the right side of the rear end of the finished product tray, and the ninth limiting member 4273 is close to the right side of the front end of the finished product tray.

In this embodiment, the sixth limiting member 4262 is in an L shape, the eighth limiting member 4272 is in an L shape, and the finished tray is limited in a rectangular area defined by the sixth limiting member 4262, the seventh limiting member 4263, the eighth limiting member 4272, the ninth limiting member 4273 and the tenth limiting member 428.

Referring to fig. 9 and 10, the first limiting mechanism 411 further includes a third length adjusting mechanism 44 for adjusting the dimension of the first limiting mechanism 411 in the length direction, and a third total width adjusting mechanism 45 for adjusting the dimension of the first limiting mechanism 411 in the width direction.

Referring to fig. 9, the third length adjustment mechanism 44 includes a first left length adjustment mechanism 441 disposed on the first support seat 4161, and a first right length adjustment mechanism 442 disposed on the second support seat 4171;

referring to fig. 9, the first left length adjustment mechanism 441 includes a second slide rail 4411 disposed on the first support seat 4161, a second slider 4412 disposed on the second slide rail 4411 and used for guiding the first limit piece 4162 to move in the length direction, and a first stop portion 4413 connected to the second slider 4412 and used for fixing the second slider 4412 at the position of the first slide rail 4343, wherein the first limit piece 4162 is disposed on the top of the second slider 4412.

In this embodiment, the first stop portion 4413 is screwed to the second slide rail 4411, and the first limiting member 4162 can slide back and forth on the second slide rail 4411 to adjust the position.

Referring to fig. 9, the first right length adjustment mechanism 442 includes a third slide rail 4421 disposed on the second support seat 4171, a third slide block 4422 disposed on the third slide rail 4421 and used for guiding the third limiting member 4172 to move in the length direction, and a second stop portion 4423 connected to the third slide block 4422 and used for fixing the third slide block 4422 at the position of the third slide rail 4421, wherein the third limiting member 4172 is disposed on the top of the third slide block 4422.

In this embodiment, the second stopping portion 4423 is screwed to the third slide rail 4421, and the third limiting member 4172 can slide back and forth on the third slide rail 4421 to adjust the position.

The third total width adjustment mechanism 45 includes a first rear width adjustment mechanism 451 provided behind the first support seat 4161 and a first front width adjustment mechanism 452 provided in front of the first support seat 4161.

Referring to fig. 10, the first rear width adjustment mechanism 451 includes a fourth slide rail 4511 disposed on the machine base, a fourth slide block 4512 disposed on the fourth slide rail 4511 and used for guiding the first support seat 4161 to move in the width direction, a first adjustment plate 4514 disposed with a first through hole 4513 in the width direction, and a first width adjustment member (not shown) passing through the first through hole 4513 and connected to the rear side of the first support seat 4161 and used for fixing the first support seat 4161 at the position of the fourth slide rail 4511, wherein the fourth slide block 4512 is disposed at the rear side of the first support seat 4161.

Referring to fig. 10, the first front width adjustment mechanism 452 includes a fifth slide rail 4521 disposed on the base, a fifth slide block 4522 disposed on the fifth slide rail 4521 and used for guiding the first support seat 4161 to move in the width direction, a second adjustment plate 4524 disposed along the width direction and having a second through hole 4523, and a second width adjustment member (not shown) passing through the second through hole 4523 and connected to the front side of the first support seat 4161 and used for fixing the first support seat 4161 at the position of the fifth slide rail 4521, wherein the fifth slide block 4522 is disposed at the front side of the first support seat 4161.

In this embodiment, the first and second width adjusters are rotating fasteners, preferably screws, which are tightened to fix the rear end of the first support 4161 in the first through hole 4513 of the first adjustment plate 4514, and the second width adjusters are tightened to fix the front end of the first support 4161 in the second through hole 4523 of the second adjustment plate 4524.

When the position of the first support 4161 in the width direction needs to be adjusted, the first width adjusting part and the second width adjusting part are loosened, the first support 4161 can move leftward or rightward, the fourth slider 4512 arranged at the rear side of the bottom of the first support 4161 and the fifth slider 4522 arranged at the front side of the bottom of the first support 4161 move leftward or rightward together, and the positions of the first support 4161 in the first through hole 4513 and the second through hole 4523 are changed, so that the position of the first support 4161 in the width direction is adjusted.

Referring to fig. 10, in the present embodiment, the third total width adjusting mechanism 45 further includes a third rear width adjusting mechanism 453 disposed at the rear end of the second supporting seat 4171 and a third front width adjusting mechanism 454 disposed at the front end of the second supporting seat 4171, the third rear width adjusting mechanism 453 and the first rear width adjusting mechanism 451 are symmetrically disposed at left and right sides, the third front width adjusting mechanism 454 and the first front width adjusting mechanism 452 are symmetrically disposed at left and right sides, the third rear width adjusting mechanism 453 and the first rear width adjusting mechanism 451 have the same composition structure and operation principle, and the third front width adjusting mechanism 454 and the first front width adjusting mechanism 452 have the same composition structure and operation principle.

Referring to fig. 9, the first left length adjustment mechanism 441 is used to adjust the distance between the first limiting member 4162 and the second limiting member 4163, and the first right length adjustment mechanism 442 is used to adjust the distance between the third limiting member 4172 and the fourth limiting member 4173, so as to satisfy trays with different length sizes.

Referring to fig. 6, 10 and 11, the first back width adjusting mechanism 451 and the first front width adjusting mechanism 452 are used to adjust the position of the first supporting seat 4161 in the width direction, and the third front width adjusting mechanism 454 and the third back width adjusting mechanism 453 are used to adjust the position of the second supporting seat 4171 in the width direction, so as to adjust the width between the first supporting seat 4161 and the second supporting seat 4171, thereby satisfying trays with different widths.

In summary, the size of the first limiting mechanism 411 in the length direction can be adjusted by adjusting the third length adjusting mechanism 44, and the size of the first limiting mechanism 411 in the width direction can be adjusted by adjusting the third total width adjusting mechanism 45, so that the trays with different sizes can be fixed, and the application range and the scene can be enlarged.

Referring to fig. 12 and 13, the second position-limiting mechanism 421 further includes a fourth length-adjusting mechanism 46 for adjusting the dimension of the second position-limiting mechanism 421 in the length direction, and a fourth total width-adjusting mechanism 47 for adjusting the dimension of the second position-limiting mechanism 421 in the width direction.

Referring to fig. 12, the fourth length adjustment mechanism 46 includes a second left length adjustment mechanism 461 disposed on the third support seat 4261, and a second right length adjustment mechanism 462 disposed on the fourth support seat 4271.

Referring to fig. 12, the second left length adjusting mechanism 461 includes a sixth sliding rail 4611 disposed on the third supporting seat 4261, a sixth sliding block 4612 disposed on the sixth sliding rail 4611 and used for guiding the sixth limiting member 4262 to move in the length direction, and a third stopping portion 4613 connected to the sixth sliding block 4612 and used for fixing the sixth sliding block 4612 at the position of the sixth sliding rail 4611, wherein the sixth limiting member 4262 is disposed at the top of the sixth sliding block 4612.

In this embodiment, the third stopping portion 4613 is screwed to the sixth sliding rail 4611, and the sixth limiting member 4262 can slide back and forth on the sixth sliding rail 4611 to adjust the position.

Referring to fig. 12, the second right length adjustment mechanism 462 includes a seventh slide rail 4621 disposed on the fourth support seat 4271, a seventh slide block 4622 disposed on the seventh slide rail 4621 and used for guiding the eighth limiting member 4272 to move in the length direction, and a fourth stopping portion 4623 connected to the seventh slide block 4622 and used for fixing the seventh slide block 4622 at the position of the seventh slide rail 4621, wherein the eighth limiting member 4272 is disposed at the top of the seventh slide block 4622.

In this embodiment, the fourth stopping portion 4623 is screwed to the seventh sliding rail 4621, and the eighth limiting member 4272 can slide back and forth on the seventh sliding rail 4621 to adjust the position.

Referring to fig. 13 and 14, the fourth total width adjusting mechanism 47 includes a second rear width adjusting mechanism 471 arranged at the rear side of the third supporting seat 4261 and a second front width adjusting mechanism 472 arranged at the front side of the third supporting seat 4261.

Referring to fig. 14, the second rear width adjustment mechanism 471 includes an eighth slide rail 4711 disposed on the base, an eighth slide block 4712 disposed on the eighth slide rail 4711 and used for guiding the third support seat 4261 to move in the width direction, a third adjustment plate 4714 disposed with a third through hole 4713 in the width direction, and a third width adjustment member (not shown) passing through the third through hole 4713 and connected to the rear side of the third support seat 4261 and used for fixing the third support seat 4261 at the eighth slide rail position, and the eighth slide block 4712 is disposed at the rear side of the third support seat 4261.

Referring to fig. 14, the second front width adjustment mechanism 472 includes a ninth slide rail 4721 disposed on the base, a tenth slider 4722 disposed on the ninth slide rail 4721 and used for guiding the third support seat 4261 to move in the width direction, a fourth adjustment plate 4724 disposed with a fourth through hole 4723 in the width direction, and a fourth width adjustment member (not shown) passing through the fourth through hole and connected to the front side of the fourth support seat 4271 and used for fixing the third support seat 4261 at the ninth slide rail position, wherein the tenth slider 4722 is disposed at the front side of the third support seat 4261.

In this embodiment, the third and fourth width adjusters are rotating fasteners, preferably screws, that tighten to secure the rear end of the third support seat 4261 within the third through hole 4713 of the third adjustment plate 4714 and the fourth width adjuster to secure the front end of the third support seat 4261 within the fourth through hole 4723 of the fourth adjustment plate 4724.

When the position of the third supporting seat 4261 in the width direction needs to be adjusted, the third width adjusting piece and the fourth width adjusting piece are loosened, the third supporting seat 4261 can move leftwards or rightwards, meanwhile, the eighth sliding block 4712 on the rear side of the bottom of the third supporting seat 4261 and the tenth sliding block 4722 on the front side of the bottom of the third supporting seat 4261 move leftwards or rightwards together, and the third supporting seat 4261 is changed in the positions of the third through hole 4713 and the fourth through hole 4723, so that the position of the third supporting seat 4261 in the width direction is adjusted.

Referring to fig. 13, in this embodiment, the fourth total width adjusting mechanism 47 further includes a fourth rear width adjusting mechanism 473 disposed at the rear end of the fourth support seat 4271 and a fourth front width adjusting mechanism 474 disposed at the front end of the fourth support seat 4271, the fourth rear width adjusting mechanism 473 and the second rear width adjusting mechanism 471 are symmetrically disposed at left and right sides, the fourth front width adjusting mechanism 474 and the second front width adjusting mechanism 472 are symmetrically disposed at left and right sides, the composition and operation principle of the fourth rear width adjusting mechanism 473 and the second rear width adjusting mechanism 471 are the same, and the composition and operation principle of the fourth front width adjusting mechanism 474 and the second front width adjusting mechanism 472 are the same.

Referring to fig. 12, the second left length adjusting mechanism 461 is used to adjust the distance between the sixth limiting member 4262 and the seventh limiting member 4263, and the second right length adjusting mechanism 462 is used to adjust the distance between the eighth limiting member 4272 and the ninth limiting member 4273, so as to satisfy trays with different length sizes.

Referring to fig. 8, 13 and 14, the position of the third support seat 4261 in the width direction is adjusted by the second rear width adjustment mechanism 471 and the second front width adjustment mechanism 472, and the position of the fourth support seat 4271 in the width direction is adjusted by the fourth rear width adjustment mechanism 473 and the fourth front width adjustment mechanism 474, so that the width between the third support seat 4261 and the fourth support seat 4271 is adjusted to meet the requirements of trays with different widths.

In summary, the size of the second limiting mechanism 421 in the length direction can be adjusted by adjusting the fourth length adjusting mechanism 46, and the size of the second limiting mechanism 421 in the width direction can be adjusted by adjusting the fourth total width adjusting mechanism 47, so that trays with different sizes can be fixed, and the application range and the scene can be expanded.

The working principle of the embodiment is as follows:

before the work is started, the tray taking and placing mechanism 434 of the empty tray conveying mechanism 43 is positioned right above the empty tray stacking mechanism 41;

to start working, firstly, the fourth lifting power source 4341 of the tray picking and placing mechanism 434 drives the first vacuum suction nozzle 4347 to descend and adsorb the single clean empty tray on the empty tray stacking mechanism 41, and then the fourth lifting power source 4341 drives the single clean empty tray to ascend;

then, under the power of the second translational force source 432, the tray pick and place mechanism 434 transports a single clean tray to the position right above the finished tray stacking mechanism 42;

next, the fourth lifting power source 4341 of the tray pick-and-place mechanism 434 drives the first vacuum suction nozzle 4347 to descend and stack a single clean tray on the finished tray loaded with the clean FPC on the finished tray stacking mechanism 42, and the FPC feeding device places the clean FPC on the clean tray of the finished tray stacking mechanism 42;

finally, the tray picking and placing mechanism 434 is driven by the second translational power source 432 to be transported to the position right above the empty tray stacking mechanism 41, and waits for the next empty tray to be transported.

Implement the utility model discloses a beneficial effect includes at least:

1. pile up piling up of clean empty charging tray through empty tray material stacking mechanism realization, pile up piling up of material stacking mechanism realization finished product tray through finished product tray, adsorb empty tray through empty tray transport mechanism again and pile up single empty tray and transportation on the material stacking mechanism of finished product tray, the utility model discloses compare the artifical empty clean tray of realization and shift and pile up, degree of automation is high, and work efficiency improves.

2. The size of the first limiting mechanism 411 in the length direction can be adjusted by adjusting the third length adjusting mechanism 44, and the size of the first limiting mechanism 411 in the width direction can be adjusted by adjusting the third total width adjusting mechanism 45, so that the fixing of trays with different sizes can be realized, and the application range and the scene are enlarged.

3. The size of the second limiting mechanism 421 in the length direction can be adjusted by adjusting the fourth length adjusting mechanism 46, and the size of the second limiting mechanism 421 in the width direction can be adjusted by adjusting the fourth total width adjusting mechanism 47, so that the fixing of trays with different sizes can be realized, and the application range and the scene are enlarged.

In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (9)

1. A tray handling stack assembly (400) for FPC washing, for adsorbing empty clean trays and transferring and stacking onto finished trays carrying washed FPC, comprising:

an empty tray stacking mechanism (41), wherein the empty tray stacking mechanism (41) is used for stacking empty clean trays;

the finished product tray stacking mechanism (42) is arranged on one side of the empty tray stacking mechanism (41), and the finished product tray stacking mechanism (42) is used for stacking finished product trays loaded with FPCs;

the empty tray conveying mechanism (43) is used for adsorbing the single clean tray on the empty tray stacking mechanism (41), conveying and stacking the single clean tray on the finished tray stacking mechanism (42); and

the empty tray stacking mechanism (41), the finished tray stacking mechanism (42) and the empty tray conveying mechanism (43) are arranged on the base.

2. Tray handling stack assembly (400) for FPC washing according to claim 1, characterized in that the empty tray transport mechanism (43) comprises:

a fifth supporting seat (431), the fifth supporting seat (431) is arranged on the base,

a second translational power source (432), the second translational power source (432) being disposed on the fifth support base (431),

a connecting part (433), the connecting part (433) being fixedly connected with a power output side of the second translational power source (432) moving in the horizontal direction;

and a tray pick and place mechanism (434) connected to the connecting part (433).

3. Tray handling stack assembly (400) for FPC cleaning according to claim 2, characterized in that the tray pick and place mechanism (434) comprises:

a fourth lifting power source (4341) arranged on the connecting part (433);

a lifting part (4342) connected to a power output side of the fourth lifting power source (4341) that moves in the vertical direction;

a first slide rail (4343) provided on one side of the lifting part (4342) and guiding the lifting part (4342) to move in a vertical direction;

the ninth sliding block (4344) is arranged on the connecting part (433) and is in sliding connection with the first sliding rail (4343);

a first connection frame (4345) connected to the lifting unit (4342);

at least one second connection frame (4346) provided on the first connection frame (4345),

and a plurality of first vacuum suction nozzles (4347) arranged on the second connecting frame (4346) and used for adsorbing clean empty trays.

4. Tray handling and stacking assembly (400) for FPC cleaning according to claim 1, wherein the empty tray stacking mechanism (41) comprises a first limiting mechanism (411) for limiting the periphery of the empty tray stack, a second lifting power source (412) arranged on the base, a second receiving platform (413) connected to the power output side of the second lifting power source (412), a plurality of first guiding columns (414) connected to the second receiving platform (413), and a first bearing seat (415) arranged on the base and matched with the first guiding columns (414), wherein the first guiding columns (414) are slidably arranged in the first bearing seat (415).

5. Tray handling stack assembly (400) for FPC washing according to claim 4, characterized in that the first stop mechanism (411) comprises a first left stop mechanism (416) arranged on the left side of the second receiving station (413), a first right stop mechanism (417) arranged on the right side of the second receiving station (413), and a fifth stop member (418) arranged on the front side of the second receiving station (413), the fifth stop member (418) being close to the front side edge of the empty tray;

the first left limiting mechanism (416) comprises a first supporting seat (4161), a first limiting piece (4162) arranged on the rear side of the first supporting seat (4161), and a second limiting piece (4163) arranged on the front side of the first supporting seat (4161), wherein the first limiting piece (4162) is close to the corner on the left side of the rear end of the empty tray, and the second limiting piece (4163) is close to the left side of the front end of the empty tray;

the first right limiting mechanism (417) comprises a second supporting seat (4171), a third limiting member (4172) arranged behind the second supporting seat (4171), and a fourth limiting member (4173) arranged in front of the second supporting seat (4171), wherein the third limiting member (4172) is close to the corner on the right side of the front end of the empty tray, and the fourth limiting member (4173) is close to the right side of the front end of the empty tray.

6. The tray carrying and stacking assembly (400) for FPC cleaning of claim 1, wherein the finished tray stacking mechanism (42) includes a second limiting mechanism (421) for limiting the periphery of the finished tray stack, a third lifting power source (422) disposed on the base, a third receiving platform (423) connected to a power output side of the third lifting power source (422), a plurality of second guiding posts (424) connected to the third receiving platform (423), and a second bearing seat (425) disposed on the base and matched with the second guiding posts (424), wherein the second guiding posts (424) are slidably disposed in the second bearing seat (425).

7. Tray handling stacker assembly (400) for FPC cleaning according to claim 6, wherein said second stop mechanism (421) comprises a second left stop mechanism (426) provided on the left side of said third receiving table (423), a second right stop mechanism (427) provided on the right side of said third receiving table (423), and a tenth stop member provided on the front side of said third receiving table (423), said tenth stop member being close to the front side edge of the finished tray;

the second left limiting mechanism (426) comprises a third supporting seat (4261), a sixth limiting member (4262) arranged on the rear side of the third supporting seat (4261), and a seventh limiting member (4263) arranged on the front side of the third supporting seat (4261), wherein the sixth limiting member (4262) is close to a corner on the left side of the rear end of the finished product tray, and the seventh limiting member (4263) is close to the left side of the front end of the finished product tray;

the second right limiting mechanism (427) comprises a fourth supporting seat (4271), an eighth limiting member (4272) arranged at the rear side of the fourth supporting seat (4271), and a ninth limiting member (4273) arranged at the front side of the fourth supporting seat (4271), wherein the eighth limiting member (4272) is close to the corner on the right side of the rear end of the finished product tray, and the ninth limiting member (4273) is close to the right side of the front end of the finished product tray.

8. Tray handling stack assembly (400) for FPC cleaning according to claim 5, characterized in that said first stop mechanism (411) further comprises a third length adjustment mechanism (44) for adjusting the dimension of said first stop mechanism (411) in the length direction, and a third total width adjustment mechanism (45) for adjusting the dimension of said first stop mechanism (411) in the width direction;

the third length adjusting mechanism (44) comprises a first left length adjusting mechanism (441) arranged on the first supporting seat (4161), and a first right length adjusting mechanism (442) arranged on the second supporting seat (4171);

the first left length adjusting mechanism (441) comprises a second slide rail (4411) arranged on the first supporting seat (4161), a second slide block (4412) arranged on the second slide rail (4411) and used for guiding the first limiting piece (4162) to move in the length direction, and a first stopping piece (4413) connected with the second slide block (4412) and used for fixing the position of the second slide block (4412), wherein the first limiting piece (4162) is arranged at the top of the second slide block (4412);

the first right length adjusting mechanism (442) comprises a third slide rail (4421) arranged on the second support seat (4171), a third slide block (4422) arranged on the third slide rail (4421) and used for guiding the third limiting piece (4172) to move in the length direction, and a second stopping piece (4423) connected with the third slide block (4422) and used for fixing the third slide block (4422) at the position of the third slide rail (4421), wherein the third limiting piece (4172) is arranged at the top of the third slide block (4422);

the third total width adjustment mechanism (45) includes a first rear width adjustment mechanism (451) provided on the rear side of the first support base (4161) and a first front width adjustment mechanism (452) provided on the front side of the first support base (4161);

the first rear width adjusting mechanism (451) comprises a fourth slide rail (4511) arranged on a machine base, a fourth slide block (4512) arranged on the fourth slide rail (4511) and used for guiding the first support seat (4161) to move in the width direction, a first adjusting plate (4514) provided with a first through hole (4513) in the width direction, and a first width adjusting piece penetrating through the first through hole (4513) to be connected with the rear side of the first support seat (4161), and used for fixing the first support seat (4161) at the position of the third slide rail (4421), wherein the fourth slide block (4512) is arranged on the rear side of the first support seat (4161);

the first front width adjusting mechanism (452) comprises a fifth sliding rail (4521) arranged on a machine base, a fifth sliding block (4522) arranged on the fifth sliding rail (4521) and used for guiding the first supporting seat (4161) to move in the width direction, a second adjusting plate (4524) provided with a second through hole (4523) in the width direction, and a second width adjusting piece penetrating through the second through hole (4523) to be connected with the front side of the first supporting seat (4161) and used for fixing the first supporting seat (4161) at the position of the fifth sliding rail (4521), wherein the fifth sliding block (4522) is arranged on the front side of the first supporting seat (4161).

9. Tray handling stack assembly (400) for FPC cleaning according to claim 7, characterized in that the second stop mechanism (421) further comprises a fourth length adjustment mechanism (46) for adjusting the dimension of the second stop mechanism (421) in the length direction, and a fourth total width adjustment mechanism (47) for adjusting the dimension of the second stop mechanism (421) in the width direction;

the fourth length adjusting mechanism (46) comprises a second left length adjusting mechanism (461) arranged on the third supporting seat (4261) and a second right length adjusting mechanism (462) arranged on the fourth supporting seat (4271);

the second left length adjusting mechanism (461) comprises a sixth sliding rail (4611) arranged on the third supporting seat (4261), a sixth sliding block (4612) arranged on the sixth sliding rail (4611) and used for guiding the sixth limiting member (4262) to move in the length direction, and a third stopping portion (4613) connected with the sixth sliding block (4612) and used for fixing the sixth sliding block (4612) at the position of the sixth sliding rail (4611), wherein the sixth limiting member (4262) is arranged at the top of the sixth sliding block (4612);

the second right length adjustment mechanism (462) includes a seventh slide rail (4621) disposed on the fourth support seat (4271), a seventh slide block (4622) disposed on the seventh slide rail (4621) and used for guiding the eighth limiting member (4272) to move in the length direction, and a fourth stopping portion (4623) connected to the seventh slide block (4622) and used for fixing the seventh slide block (4622) at the position of the seventh slide rail (4621), wherein the eighth limiting member (4272) is disposed at the top of the seventh slide block (4622);

the fourth total width adjusting mechanism (47) comprises a second rear width adjusting mechanism (471) arranged on the rear side of the third supporting seat (4261) and a second front width adjusting mechanism (472) arranged on the front side of the third supporting seat (4261);

the second rear width adjusting mechanism (471) comprises an eighth sliding rail (4711) arranged on the base, an eighth sliding block (4712) arranged on the eighth sliding rail (4711) and used for guiding the third supporting seat (4261) to move in the width direction, a third adjusting plate (4714) provided with a third through hole (4713) in the width direction, and a third width adjusting piece which penetrates through the third through hole (4713) to be connected with the rear side of the third supporting seat (4261) and is used for fixing the third supporting seat (4261) at the position of the eighth sliding rail, wherein the eighth sliding block (4712) is arranged on the rear side of the third supporting seat (4261);

width adjustment mechanism (472) is including locating ninth slide rail (4721) on the frame before the second, locates on ninth slide rail (4721) and be used for the guide tenth slider (4722) that third supporting seat (4261) removed at width direction is equipped with along width direction fourth regulating plate (4724) that is provided with fourth through-hole (4723), and passes the fourth through-hole with the front side of fourth supporting seat (4271) is connected, and is used for fixing third supporting seat (4261) is in the fourth width control spare of ninth slide rail (4721) position, tenth slider (4722) is located the front side of third supporting seat (4261).

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