CN220005870U

CN220005870U - Automatic receiving device of chain sheet punching machine

Info

Publication number: CN220005870U
Application number: CN202321576439.XU
Authority: CN
Inventors: 李小龙
Original assignee: Jinhua Anlian Machinery Co ltd
Current assignee: Jinhua Anlian Machinery Co ltd
Priority date: 2023-06-20
Filing date: 2023-06-20
Publication date: 2023-11-14
Anticipated expiration: 2033-06-20

Abstract

The utility model discloses an automatic receiving device of a chain piece punching machine, which is arranged on a punching machine frame, wherein a punching table and a punching head are arranged on the frame, the automatic receiving device comprises a blanking plate, a mounting plate is fixedly connected to the blanking plate, a blanking cavity is formed between the mounting plate and the blanking plate, a sorting rotary drum is rotationally connected to the blanking cavity, a plurality of bumps are fixedly connected to the sorting rotary drum, a stay plate is arranged on the blanking cavity, a waste material port is formed in the blanking plate, after the blanking plate receives a chain piece, the chain piece is conveyed onto the stay plate, the chain piece further slides out of the blanking cavity along with the stay plate, the chain piece naturally falls on the sorting rotary drum and is clamped in a hole, at the moment, the sorting rotary drum drives a compliant chain piece to rotate together, so that the compliant chain piece is detected, and the non-compliant chain piece is screened out through the waste material port.

Description

Automatic receiving device of chain sheet punching machine

Technical Field

The utility model relates to a punching machine, in particular to an automatic receiving device of a chain sheet punching machine.

Background

The punching machine is a punching press, and the punching process has the advantages of saving material and energy sources, being high in efficiency, not high in technical requirements for operators and being capable of making products which cannot be achieved by mechanical processing through various die applications, so that the punching machine is widely used, blanking, punching, forming, deep drawing, trimming, fine punching, shaping, riveting, extrusion and the like mainly can be made through the die, and the punching machine is widely applied to various fields, such as switch sockets, cups, cupboards, dishes and computer cases for all people, and accessories of chains can be produced through the die by using the punching machine.

The existing stamping machine for stamping the chain sheet on the chain is usually used for extruding the chain sheet on the metal sheet through the cooperation of a press machine and a press head, and then conveying the extruded chain sheet to a conveying belt through a blanking device on the stamping machine, but because the press head slides or rebounds easily in the stamping process, the circle centers of two holes on the chain sheet are not on the same horizontal line, defective products are generated, the defective products cannot be selected in the blanking process of the blanking device, and the chain after subsequent assembly is easy to break in the use process.

Disclosure of Invention

Based on the defect that the punching machine cannot sort the chain pieces in the blanking process, the utility model provides the automatic receiving device of the chain piece punching machine, which can automatically sort the chain pieces.

The technical scheme adopted for solving the technical problems is as follows: the automatic receiving device of the chain sheet punching machine is arranged on a punching machine frame, a punching table and a punching head matched with the punching table are arranged on the punching machine frame, the punching head is in sliding connection with the machine frame, a blanking plate connected to the machine frame in a rotating mode is arranged in the hole of the chain sheet on the same horizontal plane, when the punching head is separated from the punching table, the blanking plate is rotated to a position between the punching head and the punching table, a mounting plate is fixedly connected to the blanking plate, a blanking cavity is formed between the mounting plate and the blanking plate, a sorting rotary drum is rotationally connected to the blanking cavity, a plurality of lugs are fixedly connected to the sorting rotary drum, when the chain sheet slides into the blanking cavity, the circle center of the lug can clamp the hole of the chain sheet and drive the chain sheet to displace along with the lugs, so that the chain sheet falls from the blanking cavity, the blanking cavity is arranged above the sorting rotary drum and is in a sliding connection mode, when the blanking plate slides out of the punching head and the punching table, the blanking plate slides out of the blanking cavity, the blanking plate falls into the blanking cavity vertically, and the waste material is formed in the blanking cavity through the blanking cavity, and the waste material is discharged from the blanking cavity.

The further preferable technical scheme of the utility model is as follows: the top end of the blanking plate extends outwards to form a guide plate, the guide plate is obliquely arranged, and the guide plate can rotate to a position between the punching head and the punching table.

The further preferable technical scheme of the utility model is as follows: two inclined plates are fixedly connected to the guide plate, and the distance between one ends of the inclined plates, which are close to the blanking cavity, is smaller than the distance between one ends, which are far away from the blanking cavity.

The further preferable technical scheme of the utility model is as follows: the sorting rotary drum is provided with a plurality of planes, and the convex blocks are fixedly connected to the planes.

The further preferable technical scheme of the utility model is as follows: the free ends of the protruding blocks are abutted with the inner wall of the blanking cavity.

The further preferable technical scheme of the utility model is as follows: two limiting plates are fixedly connected to the inner side wall of the blanking cavity, the limiting plates are located below the stop plates, and the gaps of the two limiting plates are equal to the width of the chain piece.

The further preferable technical scheme of the utility model is as follows: the horizontal position of the waste port is in high agreement with the horizontal position of the sorting rotary drum.

The further preferable technical scheme of the utility model is as follows: the mounting panel is located waste material mouth department fixedly connected with and connects the material frame, connect fixedly connected with in the material frame and pass the waste material mouth and extend to the slide first of unloading intracavity, offer in slide first, sliding connection has slide second in slide first, be equipped with between slide first and slide second and be used for promoting slide second gliding spring, the lug can promote slide second and slide, works as when lug and slide second top form the butt, along with the rotation of lug and promote slide second to slide into in slide first gradually, until lug and slide second separate, there is the gap between slide second and the letter sorting rotary drum, the gap interval is less than chain piece thickness.

The further preferable technical scheme of the utility model is as follows: be equipped with the driving piece that is used for driving letter sorting rotary drum pivoted on the flitch, the driving piece includes fixed plate on the flitch lateral wall of fixed connection, fixedly connected with motor on the fixed plate, the output of motor passes the mounting panel and extends to the unloading intracavity, letter sorting rotary drum fixed connection is on the output of motor.

The further preferable technical scheme of the utility model is as follows: the blanking plate is located above the motor and fixedly connected with a first cylinder for pushing the stay plate to slide.

Compared with the prior art, the utility model has the advantages that the blanking plate receives the chain pieces and then conveys the chain pieces to the stop plate, the chain pieces are aligned with the sorting rotary drum at the moment, the chain pieces naturally fall on the sorting rotary drum along with the stop plate sliding out of the blanking cavity, the convex blocks are clamped into the holes, the sorting rotary drum drives the compliant chain pieces to rotate together at the moment, the compliant chain pieces are detected, the non-compliant chain pieces are screened out through the waste openings, and the design plays a role in sorting the chain pieces in the blanking process, so that the finally assembled chain pieces are the compliant chain pieces, and the quality of the finally manufactured chain is improved.

Drawings

The utility model will be described in further detail below in connection with the drawings and the preferred embodiments, but it will be appreciated by those skilled in the art that these drawings are drawn for the purpose of illustrating the preferred embodiments only and thus should not be taken as limiting the scope of the utility model. Moreover, unless specifically indicated otherwise, the drawings are merely schematic representations, not necessarily to scale, of the compositions or constructions of the described objects and may include exaggerated representations.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of an automatic receiving device according to the present utility model;

FIG. 3 is a front longitudinal cross-sectional view of the automatic receiving device in a preferred embodiment of the present utility model;

fig. 4 is a front transverse cross-sectional view of the automatic receiving device in a preferred embodiment of the present utility model.

In the figure: 1. a frame; 2. punching heads; 3. a stamping table; 4. a slide; 5. a material frame; 6. a mounting plate; 7. a blanking plate; 8. a first connecting rod; 9. a second cylinder; 10. a material receiving frame; 11. a bump; 12. a blanking cavity; 13. a waste port; 14. a sorting drum; 15. a stay plate; 16. a plane; 17. a slide bar; 18. a second chute; 19. a second connecting rod; 20. a guide plate; 21. a motor; 22. a fixing plate; 23. a first cylinder; 24. a sloping plate; 25. a first sliding plate; 26. a through groove; 27. a second slide plate; 28. a limiting plate; 29. a spring; 30. and a chute I.

Detailed Description

Preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely illustrative, exemplary, and should not be construed as limiting the scope of the utility model.

It should be noted that: like reference numerals denote like items in the following figures, and thus once an item is defined in one figure, it may not be further defined and explained in the following figures.

The punching machine shown in fig. 1, including frame 1, install punching press platform 3 in the frame 1 and with punching press head 2 that punching press platform 3 cooperation was used, punching press head 2 and frame 1 sliding connection, when punching press chain piece, install the mould of chain piece respectively on punching press head 2 and punching press platform 3, and place the metal tablet between punching press platform 3 and punching press head 2, further start the punching machine, punching press head 2 pushes down and pushes out the chain piece from the metal tablet this moment, fixedly connected with slide 4 on the frame 1, slide 4 slant sets up, the chain piece of extrusion is collected through slide 4 slides to material frame 5 in.

The embodiment mainly describes a blanking device of a punching machine, and specifically comprises the following steps:

as shown in figure 1, the automatic receiving device of the chain sheet punching machine is arranged on a punching machine frame 1, a punching table 3 and a punching head 2 matched with the punching table 3 are arranged on the frame 1, the punching head 2 is in sliding connection with the frame 1, the automatic receiving device comprises a blanking plate 7 which is rotationally connected on the frame 1, a cylinder II 9 is fixedly connected above the punching head 2, the output end of the cylinder II 9 is hinged with a connecting rod I8, the bottom end of the connecting rod I8 is hinged with a connecting rod II 19, the blanking plate 7 is fixedly connected with the bottom end of the connecting rod II 19, a plurality of sliding rods 17 are fixedly connected on the frame 1, a sliding groove II 18 is arranged on the sliding rod 17, the hinge point of the connecting rod I8 and the connecting rod II 19 is positioned in the sliding groove II 18 of one sliding rod 17, a mounting plate 6 is positioned in the sliding groove II 18 between the rest two sliding rods 17, when the punching head 2 is separated from the punching table 3, the output end of the cylinder II pushes the connecting rod I8 to rotate, at this time, the connecting rod two 19 rotates correspondingly along with the rotation of the connecting rod one 8, so as to drive the mounting plate 6 to slide correspondingly in the chute two 18, at this time, because the top end of the blanking plate 7 extends outwards to form a guide plate 20, the guide plate 20 is obliquely arranged, therefore, when the connecting rod two 19 rotates, the blanking plate 7 drives the guide plate 20 to displace along with the guide plate 20, so that the guide plate 20 rotates to a position between the stamping head 2 and the stamping table 3, at this time, the stamped compliant chain piece falls on the guide plate 20, the design plays a role of catching the stamped chain piece, and the guide plate 20 is fixedly connected with two sloping plates 24, the distance between one end of the sloping plate 24 close to the stamping head 2 is larger than that between one end far away from the stamping table 3, so that when the chain piece falls on the guide plate 20, the distance between the two sloping plates 24 is gradually reduced in the sliding process along the guide plate 20, therefore, the position of the chain sheet is gradually changed in the sliding process until the chain sheet is in a vertical state, so that the subsequent screening of the chain sheet is facilitated.

As shown in fig. 2, the blanking plate 7 is fixedly connected with the mounting plate 6, a blanking cavity 12 is formed between the mounting plate 6 and the blanking plate 7, a sorting rotary drum 14 is rotationally connected to the blanking cavity 12, and a plurality of protruding blocks 11 are fixedly connected to the sorting rotary drum 14, so that when the chain piece falls down, the protruding blocks 11 can be inserted into holes on the compliant chain piece along with the rotation of the sorting rotary drum 14, and the compliant chain piece is driven to rotate along with the rotation of the sorting rotary drum 14 until the chain piece rotates to the outlet of the blanking cavity 12, at the moment, the screening of the compliant chain piece can be completed due to the falling of the gravity chain piece, and the free ends of the protruding blocks 11 are in abutting connection with the inner wall of the blanking cavity 12, so that the chain piece can be effectively prevented from falling down from gaps between the protruding blocks 11 and the inner wall of the blanking cavity 12, and the accuracy of the chain piece screening is further improved; the sorting rotary drum 14 is provided with a plurality of planes 16, the convex blocks 11 are fixedly connected to the planes 16, and the design can increase the contact area between the chain pieces and the sorting rotary drum 14 when the chain pieces are sleeved on the convex blocks 11, so that the chain pieces can rotate along with the sorting rotary drum 14 when the sorting rotary drum 14 rotates.

As shown in fig. 3, the blanking plate 7 is provided with a driving member for driving the sorting rotary drum 14 to rotate, the driving member comprises a fixing plate 22 fixedly connected to the side wall of the blanking plate 7, the fixing plate 22 is a rectangular plate, a motor 21 is fixedly connected to the fixing plate 22, the output end of the motor 21 penetrates through the mounting plate 6 to extend into the blanking cavity 12, and the sorting rotary drum 14 is fixedly connected to the output end of the motor 21, so that when chain pieces are required to be sorted, the motor 21 is started, and the output end of the motor 21 drives the sorting rotary drum 14 to rotate at the moment, so that the chain pieces are screened.

As shown in fig. 2-4, the blanking chamber 12 is slidably connected with a stay plate 15 for making the chain sheet stay above the sorting drum 14, a through hole for facilitating the stay plate 15 to slide is formed in the mounting plate 6, a first cylinder 23 for pushing the stay plate 15 to slide is fixedly connected above the motor 21, when the blanking plate 7 slides out of the space between the stamping head 2 and the stamping table 3, the stay plate 15 slides out of the blanking chamber 12, the chain sheet vertically falls into the blanking chamber 12 at this time, when the chain sheet vertically falls onto the stay plate 15 through the guide plate 20, the mounting plate 6 and the blanking plate 7 slide out of the space between the stamping table 3 and the stamping table 3 at this time, the first cylinder 23 is started, the output end of the first cylinder 23 pushes the stay plate 15 to slide, so that the slide plate slides out of the blanking chamber 12 through the through hole, at this time, the supporting force of the chain piece disappears, the chain piece falls on the plane 16, and the lug 11 is clamped into the hole on the chain piece, the design effectively improves the accuracy of clamping with the lug 11 when the chain piece falls into the blanking cavity 12, so that the screening efficiency of the chain piece is improved, meanwhile, two limiting plates 28 are fixedly connected to the inner side wall of the blanking cavity 12, the limiting plates 28 are positioned below the stay plates 15, the gap between the two limiting plates 28 is equal to the width of the chain piece, and therefore, when the stay plates 15 exit the blanking cavity 12, the chain piece falls downwards along the gap between the two limiting plates 28, thereby playing the role of limiting the movable range when the chain piece falls, avoiding the displacement of the chain piece in the falling process, and further affecting the accuracy of the clamping of the lug 11 and the hole.

As shown in fig. 2-4, the blanking plate 7 is provided with a waste port 13 communicated with the blanking cavity 12, the horizontal position of the waste port 13 is consistent with the horizontal position of the sorting rotary drum 14, the waste port 13 is a rectangular port, and the length of the waste port 13 is longer than that of the chain piece, so that the non-compliant chain piece can be ensured to be discharged through the waste port 13, the situation that the non-compliant chain piece is blocked in the waste port 13 is avoided, the mounting plate 6 is fixedly connected with a material receiving frame 105 at the waste port 13, when the non-compliant chain piece is discharged through the waste port 13 and falls into the material receiving frame 105, the non-compliant chain piece is collected, the non-compliant material is prevented from being mixed with the compliant chain piece from newly falling on the slide 4, the subsequent processing of the non-compliant chain piece can be facilitated, a sliding plate 25 extending into the blanking cavity 12 through the waste port 13 is fixedly connected in the material receiving frame 105, the sliding plate 25 is arranged in the sliding plate 30, the sliding groove I30 is slidably connected with the sliding plate II 27, when two circle centers of the chain pieces are staggered, because the chain pieces belong to the non-compliant chain pieces, when the non-compliant chain pieces fall off, the non-compliant chain pieces are positioned on the convex blocks 11 and form abutting joint with the limiting plates 28 along with the rotation of the sorting rotary drum 14, so that the non-compliant chain pieces fall into the grooves between the two convex blocks 11 and rotate along with the rotation of the sorting rotary drum 14 until rotating to the sliding plate II 27, at the moment, the chain pieces can enter the material receiving frame 105 along the sliding plate II 27 and the sliding plate I25 to collect, thereby achieving the aim of sieving the chain pieces, a spring 29 for pushing the sliding plate II 27 to slide is arranged between the sliding groove I30 and the sliding plate II 27, the convex blocks 11 can push the sliding plate II 27 to slide, and when the convex blocks 11 form abutting joint with the top ends of the sliding plate II 27, the sliding plate II 27 is gradually pushed into the sliding groove I30 along with the rotation of the convex blocks 11, until the lug 11 is separated from the second slide plate 27, the design can prevent the second slide plate 27 from influencing the rotation of the sorting rotary drum 14, and when the lug 11 is separated from the second slide plate 27, the spring 29 can push the second slide plate 27 to restore to the original position, so that a gap exists between the second slide plate 27 and the sorting rotary drum 14, the gap interval is smaller than the thickness of a chain piece, a contact point exists on the side wall of the lug 11, and preferably, the contact point is positioned at the center of the inclined edge of the lug 11, so that when the second slide plate 27 is abutted against the contact point on the lug 11, the compliant chain piece is positioned below the contact point, thereby preventing the second slide plate 27 from contacting the compliant chain piece, and the non-compliant chain piece is positioned above the contact point of the lug 11 due to the fact that the circle centers of holes are staggered, so that the non-compliant chain piece can be pulled out in the process of pushing the second slide plate 27 by the lug 11 to slide, and the non-compliant chain piece is guided into the material receiving frame 105 for collection, thereby improving screening accuracy.

Working principle: when the stamping head 2 and the stamping table 3 are separated after stamping is finished, the output end of the air cylinder II 9 drives the connecting rod I8 to rotate, at the moment, the connecting rod II 19 rotates along with the rotation II of the connecting rod I8, the joint point between the connecting rod I8 and the connecting rod II 19 slides in the sliding groove on the sliding rod 17, the mounting plate 6 slides in the sliding groove on the remaining two sliding rods 17, meanwhile, the blanking plate 7 and the guide plate 20 rotate to a position between the stamping head 2 and the stamping table 3 along with the rotation of the connecting rod II 19, at the moment, the stamped chain piece falls on the guide plate 20, and the position of the chain piece changes along with the change of the distance between the two oblique sides in the sliding process of the chain piece on the guide plate 20 until the chain piece is in a vertical state, at the moment, the chain piece falls on the stay plate 15, the air cylinder II 9 is further started to enable the mounting plate 6 and the guide plate 20 to slide out of the position between the stamping table 3 and the stamping head 2, at the same time, the first cylinder 23 is started, the first cylinder 23 pushes the stay plate 15 to slide out of the blanking cavity 12 through the through hole, at the moment, the two limiting plates 28 of the chain plate well cover fall on the plane 16, the protruding block 11 is clamped into the hole on the chain plate, the motor 21 is further started, the output end of the motor 21 drives the sorting rotary drum 14 to rotate, at the moment, the compliant chain plate rotates along with the rotation of the sorting rotary drum 14, the second sliding plate 27 is abutted with the contact point in the rotation process, because the chain plate is positioned below the contact point, the chain plate continuously rotates along with the sorting rotary drum 14, at the same time, the protruding block 11 pushes the second sliding plate 27 to gradually slide into the first sliding groove 30, the spring 29 deforms until the protruding block 11 is separated from the second sliding plate 27, at the moment, the phase-changed spring 29 pushes the second sliding plate 27 to restore to the original position, at the moment, the chain plate rotates to the outlet of the feeding cavity due to gravity, the compliance links fall on the slide 4 and slide into the material frame 5 along the slide 4 for collection;

when the holes on the chain sheet are wrong, the chain sheet falls on the protruding blocks 11 along the two limiting plates 28, at this time, because the holes of the non-compliant chain sheet are wrong, the chain sheet is positioned on the protruding blocks 11, and along with the rotation of sorting rotation, the limiting plates 28 push the non-compliant chain sheet into the grooves between the two protruding blocks 11, and rotate along with the rotation of the sorting rotary drum 14 until the second sliding plate 27 rotates, at this time, the second sliding plate 27 lifts the non-compliant chain sheet, so that the chain sheet can enter the receiving cavity along the first sliding plate 25 and the second sliding plate 27 to be collected, if one hole of the chain sheet is clamped on one protruding block 11, the chain sheet at this time is obliquely arranged, and the chain sheet is positioned above the contact point, and along with the rotation of the sorting rotary drum 14, the second sliding plate 27 can pull the chain sheet on the protruding blocks 11 down, so as to be collected.

The automatic receiving device of the chain sheet punching machine provided by the utility model is described above, and specific examples are applied to illustrate the principle and the implementation mode of the utility model, and the description of the examples is only used for helping to understand the utility model and the core idea. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims

1. The automatic receiving device of the chain sheet punching machine is arranged on a punching machine frame, a punching table and a punching head matched with the punching table are arranged on the punching machine frame, and the automatic receiving device is characterized in that the punching head is in sliding connection with the frame, and the automatic receiving device comprises a blanking plate which is rotationally connected to the frame, when the punching head is separated from the punching table, the blanking plate is rotated to a position between the punching head and the punching table, a mounting plate is fixedly connected to the blanking plate, a blanking cavity is formed between the mounting plate and the blanking plate, a sorting rotary drum is rotationally connected to the blanking cavity, a plurality of bumps are fixedly connected to the sorting rotary drum, when the chain sheet slides into the blanking cavity, the bumps can clamp circle centers of holes on the chain sheet and drive the chain sheet to displace along with the bumps, so that the chain sheet falls from the blanking cavity, when the blanking plate slides out of the blanking plate and the punching table, the blanking plate slides out of the blanking cavity, and when the blanking plate slides out of the blanking cavity, the blanking plate falls into the blanking cavity vertically, and the waste material falls into the blanking cavity through the bumps.

2. The automatic receiving device of a chain sheet punching machine according to claim 1, wherein the top end of the blanking plate extends outwards to form a guide plate, the guide plate is obliquely arranged, and the guide plate can rotate between the punching head and the punching table.

3. The automatic receiving device of the chain sheet punching machine according to claim 2, wherein two inclined plates are fixedly connected to the guide plate, and the distance between one ends of the inclined plates, which are close to the blanking cavity, is smaller than the distance between one ends, which are far away from the blanking cavity.

4. The automatic receiving device of a chain sheet punching machine according to claim 1, wherein the sorting drum is provided with a plurality of planes, and the protruding blocks are fixedly connected to the planes.

5. The automatic receiving device of a chain sheet punching machine according to claim 1, wherein the free ends of the protruding blocks are abutted with the inner wall of the blanking cavity.

6. The automatic receiving device of the chain sheet punching machine according to claim 1, wherein two limiting plates are fixedly connected to the inner side wall of the blanking cavity, the limiting plates are located below the stay plates, and the gap between the two limiting plates is equal to the width of the chain sheet.

7. The automatic receiving device of a chain sheet press as recited in claim 2, wherein the scrap port is positioned at a level that is substantially identical to a level of the sorting drum.

8. The automatic material receiving device of the chain sheet punching machine according to claim 1, wherein the mounting plate is fixedly connected with a material receiving frame at the waste material opening, a first sliding plate extending into the material discharging cavity through the waste material opening is fixedly connected in the material receiving frame, a first sliding plate is arranged in the first sliding plate, a second sliding plate is connected in the first sliding plate in a sliding manner, a spring for pushing the second sliding plate to slide is arranged between the first sliding plate and the second sliding plate, the second sliding plate can be pushed to slide by the protruding block, when the protruding block is abutted to the top end of the second sliding plate, the second sliding plate is gradually pushed to slide into the first sliding plate along with the rotation of the protruding block until the protruding block is separated from the second sliding plate, a gap exists between the second sliding plate and the sorting rotary drum, and the gap distance is smaller than the thickness of the chain sheet.

9. The automatic receiving device of a chain sheet punching machine according to claim 1, wherein a driving piece for driving the sorting rotary drum to rotate is arranged on the blanking plate, the driving piece comprises a fixed plate fixedly connected to the side wall of the blanking plate, a motor is fixedly connected to the fixed plate, the output end of the motor penetrates through the mounting plate to extend into the blanking cavity, and the sorting rotary drum is fixedly connected to the output end of the motor.

10. The automatic receiving device of a chain sheet punching machine according to claim 1, wherein the blanking plate is fixedly connected with a first cylinder for pushing the stay plate to slide above the motor.