Feeding system

Abstract

The present invention discloses a blanking system, which includes a blanking device, a fixture plate and a cleaning plate. The blanking device includes a frame, an upper die, a lower die and a driving assembly; a bearing platform is provided on the frame; the upper die is arranged on the frame, and the upper die includes a plurality of ejector pins; the lower die is arranged on the frame and is located below the upper die. The lower die includes a positioning plate and a top plate. The positioning plate is carried on the bearing platform, and a plurality of first guiding holes penetrating the positioning plate are provided on the positioning plate. The cleaning plate and the fixture plate are sequentially positioned on the positioning plate from bottom to top, and each bearing through hole is communicated with an acupoint and a first guiding hole. The top plate is arranged below the positioning plate, and a plurality of bearing structures are provided on the top plate. The bearing structures, the first guiding holes and the bearing through holes correspond to each other one by one. By providing the bearing structures, the bearing structures can catch the workpieces falling from the fixture plate and then smoothly place the workpieces in the acupoints of the cleaning plate, reducing the collision between the flat grinding surface of the workpieces and the cleaning plate, thereby reducing the scrap rate of the workpieces.

Description

Technical Field

[0001] The present invention relates to the technical field of flat grinding workpiece blanking, and particularly relates to a blanking system. Background Art

[0002] After flat grinding the workpieces in the jig plate, it is necessary to transfer the workpieces in the jig plate to the cleaning plate to clean the workpieces. In the related art, generally, ejector pins are used to eject the workpieces from the acupoints in the jig plate, and then the workpieces are placed in the cleaning plate manually. In the above process, it is easy to damage the flat grinding surface of the workpieces, resulting in scrapping of the workpieces. Summary of the Invention

[0003] An object of the present invention is to solve at least one of the technical problems existing in the prior art. The present invention provides a blanking system. When the workpiece is transferred from the jig plate to the cleaning plate by the blanking device of the present application, the scrap rate of the workpiece is low.

[0004] According to the blanking system provided by an embodiment of the present invention, it includes a blanking device, a jig plate and a cleaning plate. The jig plate is provided with a plurality of bearing through holes for placing workpieces, and the cleaning plate is provided with a plurality of acupoints penetrating through the cleaning plate. The blanking device includes a frame, an upper die, a lower die and a driving component; a bearing platform is provided on the frame; the upper die is arranged on the frame, and the upper die includes a plurality of ejector pins, and at least part of the ejector pins correspond to the bearing through holes one by one; the lower die is arranged on the frame and is located below the upper die. The lower die includes a positioning plate and a top plate. The positioning plate is carried on the bearing platform. The positioning plate is provided with a plurality of first guiding holes penetrating through the positioning plate. A positioning structure is provided on the positioning plate. The positioning structure can position the cleaning plate and the jig plate on the positioning plate in sequence from bottom to top, so that each bearing through hole is communicated with an acupoint and a first guiding hole. The top plate is arranged below the positioning plate. A plurality of bearing structures are provided on the top plate. The bearing structures are used for bearing the workpieces, and the bearing structures correspond to the first guiding holes one by one; the driving component is arranged on the frame, and the driving component is connected with the top plate and is used to drive the top plate to move up and down, so that the bearing structure can pass through the first guiding hole and partially extend into the acupoint, and can make the top plate drive the positioning plate to disengage from the bearing platform and approach the upper die.

[0005] The blanking device described in the present invention has at least the following beneficial effects: Under the action of the positioning structure, the cleaning plate can be positioned on the positioning plate, and the jig plate can be positioned on the cleaning plate. Driven by the driving component, the top plate can move upward so that the bearing structure passes through the first guiding hole and penetrates into the acupoints of the cleaning plate. Then, the top plate can push the positioning plate upward to drive the cleaning plate and the jig plate close to the upper die. The ejector pins on the upper die can extend into the bearing through holes of the jig plate to eject the workpieces in the bearing through holes. The ejected workpieces can fall on the bearing structure. Then, the driving component can drive the top plate to move downward to drive the positioning plate to reset. Then, the top plate continues to move downward so that the workpieces on the bearing structure can smoothly fall into the acupoints of the cleaning plate. By setting that some ejector pins correspond to the bearing through holes one by one, and some acupoints correspond to the bearing through holes one by one, the workpieces in the jig plate can directly fall into the acupoints of the cleaning plate without manual placement by workers, saving time and effort. When the jig plate is placed on the cleaning plate, the flat grinding surface of the workpiece in the jig plate faces downward. By setting the bearing structure, the bearing structure can catch the workpieces falling from the jig plate. During the downward movement of the top plate, the workpieces on the bearing structure can stably fall into the acupoints of the cleaning plate, reducing the collision between the flat grinding surface of the workpiece and the cleaning plate, and thus reducing the rejection rate of the workpiece.

[0006] According to the blanking system described in the embodiment of the present invention, the acupoint includes a receiving part and two communicating parts. The communicating parts are located below the receiving part and communicate with the receiving part. The receiving part is used to accommodate the workpiece. The bearing structure includes two bearing columns. The two bearing columns of each bearing structure correspond to the two communicating parts in an acupoint one by one. Driven by the driving component, the bearing column can pass through the communicating part and partially extend into the receiving part.

[0007] According to the blanking system described in the embodiment of the present invention, a limiting groove is formed on the upper end surface of the bearing column, and the limiting groove is used to limit the workpiece.

[0008] According to the blanking system described in the embodiment of the present invention, the upper die further includes a first driver, which is connected to the ejector pin and is used to drive the ejector pin to move up and down.

[0009] According to the blanking system described in the embodiment of the present invention, the first driver includes a mounting plate and an air pump. A plurality of mounting holes are provided on the mounting plate. The mounting holes correspond to the ejector pins one by one, and the ejector pins are slidably inserted into the mounting holes. The air pump is communicated with each mounting hole through pipelines. The air pump is used to blow air or suck air into the mounting holes to drive the ejector pins to extend out of or retract into the mounting holes.

[0010] According to the blanking system described in the embodiment of the present invention, the upper die further includes a guiding plate, which is arranged below the mounting plate. A plurality of second guiding holes are provided on the guiding plate. The second guiding holes correspond to the ejector pins one by one, and the ejector pins are slidably inserted into the second guiding holes.

[0011] For the blanking system according to an embodiment of the present invention, the positioning structure includes a plurality of positioning pins. A plurality of first positioning holes penetrating the cleaning plate are provided on the cleaning plate, and a plurality of second positioning holes are provided on the jig plate. The positioning pins, the first positioning holes, and the second positioning holes are in one-to-one correspondence.

[0012] For the blanking system according to an embodiment of the present invention, it further includes a controller. A sensor is installed on the frame, and the sensor is disposed below the top plate and is used to detect the position of the top plate. The controller is electrically connected to the sensor and the driving assembly respectively.

[0013] For the blanking system according to an embodiment of the present invention, the frame includes a guide rail extending vertically. The driving assembly includes a second driver and a mounting bracket. The mounting bracket is slidably disposed on the guide rail, the mounting bracket is connected to the top plate, and the driving assembly is connected to the mounting bracket.

[0014] For the blanking system according to an embodiment of the present invention, the second driver includes a motor and a belt drive structure. The motor is connected to the belt drive structure, and the mounting bracket is connected to the belt of the belt drive structure.

[0015] The additional aspects and advantages of the present invention will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the present invention. Description of the Drawings

[0016] The present invention will be further described below in conjunction with the drawings and embodiments;

[0017] Figure 1 It is a schematic structural diagram of a blanking system according to an embodiment of the present invention;

[0018] Figure 2 It is Figure 1 A schematic structural diagram of another perspective of the shown blanking system;

[0019] Figure 3 It is Figure 1 A schematic structural diagram of the lower die, the cleaning plate, and the jig plate inside the shown blanking system;

[0020] Figure 4 It is Figure 3 An exploded view of the lower die, the cleaning plate, and the jig plate;

[0021] Figure 5 It is Figure 4 A partial enlarged view of the structure at A in the shown exploded view;

[0022] Figure 6 A cross-sectional view of a cleaning plate according to an embodiment of the present invention;

[0023] Figure 7 It is Figure 6 A partial enlarged view of the structure at B of the shown cleaning plate;

[0024] Figure 8 For Figure 1 the exploded view of the upper die of the shown blanking system.

[0025] Reference numerals:

[0026] Frame 100; Guide rail 110; Sensor 120;

[0027] Upper die 200; Ejector pin 210; Mounting plate 220; Mounting hole 221; Guide plate 230; Second guide hole 231;

[0028] Lower die 300; Positioning plate 310; First guide hole 311; Positioning pin 312; Top plate 320; Bearing structure 330; Bearing column 331; Limit groove 331a;

[0029] Drive assembly 400; Mounting frame 410; Second driver 420; Motor 421; Belt drive structure 422;

[0030] Cleaning plate 500; Acupoint 510; Accommodating portion 511; Connecting portion 512;

[0031] Fixture plate 600; Bearing through hole 610. Detailed implementation manners

[0032] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The function of the accompanying drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention. However, it should not be construed as a limitation on the protection scope of the present invention.

[0033] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0034] In the description of the present invention, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number. If the first and second are described only for the purpose of distinguishing technical features, they should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0036] Reference below Figures 1 to 8 The material discharging system of the present invention is described in detail.

[0037] Reference Figures 1 to 4 According to an embodiment of the present invention, the unloading system includes a unloading device, a jig plate 600 and a cleaning plate 500. The jig plate 600 is provided with a plurality of bearing through holes 610 for placing workpieces, and the cleaning plate 500 is provided with a plurality of acupoints 510 penetrating the cleaning plate 500. The unloading device includes a frame 100, an upper mold 200, a lower mold 300 and a driving assembly 400.

[0038] The frame 100 is provided with a bearing platform; the upper die 200 is provided on the frame 100, and the upper die 200 includes a plurality of ejector pins 210, at least some of the ejector pins 210 correspond to the bearing through holes 610 one by one; the lower die 300 is provided on the frame 100 and is located below the upper die 200, and the lower die 300 includes a positioning plate 310 and a top plate 320, the positioning plate 310 is supported on the bearing platform, and the positioning plate 310 is provided with a plurality of first guide holes 311 penetrating the positioning plate 310, and the positioning plate 310 is provided with a positioning structure, and the positioning structure can position the cleaning plate 500 and the fixture plate 600 on the positioning plate 310 from bottom to top in sequence, so that each bearing through hole 61 0 are connected with an acupoint 510 and a first guide hole 311, the top plate 320 is arranged below the positioning plate 310, and a plurality of bearing structures 330 are arranged on the top plate 320, the bearing structure 330 is used to bear the workpiece, and the bearing structure 330, the first guide hole 311 and the bearing through hole 610 correspond to each other one by one; the driving assembly 400 is arranged on the frame 100, the driving assembly 400 is connected to the top plate 320, and is used to drive the top plate 320 to do lifting movement, so that the bearing structure 330 can pass through the first guide hole 311 and partially extend into the acupoint 510, and can enable the top plate 320 to drive the positioning plate 310 to leave the bearing platform to approach the upper mold 200.

[0039] For example, Figures 1 to 4As shown, the blanking device includes a frame 100, an upper die 200, a lower die 300, and a driving component 400. The upper die 200, the lower die 300, and the driving component 400 are all installed on the frame 100. The upper die 200 is located above the lower die 300. A plurality of ejector pins 210 are provided on the upper die 200. The lower die 300 includes a positioning plate 310 and a top plate 320. The positioning plate 310 is located above the top plate 320 and is carried on a carrying platform. A plurality of first guiding holes 311 penetrating the positioning plate 310 vertically are provided on the positioning plate 310. A plurality of carrying structures 330 are provided on the top plate 320. A plurality of carrying through holes 610 penetrating the fixture plate 600 vertically are provided on the fixture plate 600. A workpiece is placed in the carrying through holes 610. A plurality of acupoints 510 penetrating the cleaning plate 500 vertically are provided on the cleaning plate 500. After the workpiece on the fixture plate 600 is polished, the operator can place the cleaning plate 500 on the positioning plate 310, and then place the fixture plate 600 upside down on the cleaning plate 500 so that the polished surface of the workpiece on the fixture plate 600 faces downward. The acupoints 510 on the cleaning plate 500, the first guiding holes 311 on the positioning plate 310, and the carrying structures 330 on the top plate 320 correspond to each other one by one. Each carrying through hole 610 on the fixture plate 600 has an acupoint 510 on the cleaning plate 500 corresponding to it. The carrying through holes 610 on the fixture plate 600 correspond to some of the ejector pins 210 on the upper die 200 one by one. Driven by the driving component 400, the top plate 320 can move upward so that after the carrying structure 330 passes through the first guiding holes 311 on the positioning plate 310, part of it extends into the acupoints 510 of the cleaning plate 500. Then, the top plate 320 can drive the positioning plate 310 to move upward to drive the cleaning plate 500 and the fixture plate 600 to move upward. Furthermore, the ejector pins 210 on the upper die 200 can be inserted into the carrying through holes 610 of the fixture plate 600 from above to eject the workpiece in the carrying through holes 610 so that the workpiece can fall on the upper end of the carrying structure 330. Then, the driving component 400 can drive the top plate 320 to move downward to reset the positioning plate 310. Then, the driving component 400 continues to drive the top plate 320 to move downward so that the workpiece on the carrying structure 330 can fall smoothly into the acupoints 510 on the cleaning plate 500.By setting the positioning plate 310, the positioning structure on the positioning plate 310 can position the jig plate 600 on the cleaning plate 500, enabling the workpieces on the jig plate 600 to correspond one by one with some acupoints 510 on the cleaning plate 500. Furthermore, after the workpieces on the jig plate 600 are separated from the jig plate 600, they can directly fall into the acupoints 510 of the cleaning plate 500, eliminating the need for manual placement of workpieces on the cleaning plate 500, saving time and effort and reducing the probability of workpiece damage. By setting the top plate 320, after the ejector pins 210 eject the workpieces on the jig plate 600, the workpieces can fall on the bearing structure 330, and the bearing structure 330 descends to allow the workpieces to smoothly fall into the acupoints 510 on the cleaning plate 500, reducing the collision between the flat grinding surface of the workpieces and the cleaning plate 500, thereby reducing the rejection rate of the workpieces.

[0040] Further, the acupoint 510 includes a receiving portion 511 and two connecting portions 512. The connecting portions 512 are located below the receiving portion 511 and communicate with the receiving portion 511. The receiving portion 511 is used to accommodate the workpieces. The bearing structure 330 includes two bearing columns 331. The two bearing columns 331 of each bearing structure 330 correspond one by one with the two connecting portions 512 in one acupoint 510. Driven by the driving assembly 400, the bearing columns 331 can pass through the connecting portions 512 and partially extend into the receiving portion 511. For example, as Figure 6 and Figure 7 shown, the two connecting portions 512 are arranged side by side directly below the receiving portion 511 and communicate with the receiving portion 511. The bearing structure 330 includes two parallel bearing columns 331. In the corresponding acupoint 510 and bearing structure 330, the connecting portions 512 and the bearing columns 331 correspond one by one. By setting two bearing columns 331, the two bearing columns 331 can simultaneously bear one workpiece, so that while reducing the contact area between the upper end surface of the bearing column 331 and the workpiece, it can ensure that the bearing structure 330 can stably bear the workpiece, thereby improving the problem of damage to the flat grinding surface of the workpiece caused by the large contact area between the workpiece and the bearing structure 330.

[0041] Further, a limiting groove 331a is formed on the upper end surface of the bearing column 331, and the limiting groove 331a is used to limit the workpiece. For example, as Figure 5 shown, by setting the limiting groove 331a, the stability of the bearing structure 330 when bearing the workpiece can be improved, reducing the probability of the workpiece separating from the bearing structure 330.

[0042] In some embodiments of the present invention, the upper die 200 further includes a first driver, which is connected to the ejector pin 210 and is used to drive the ejector pin 210 to move up and down. By setting the first driver, the first drive can drive the ejector pin 210 to move downward, so that the ejector pin 210 can eject the workpieces in the jig plate 600.

[0043] Further, referring to Figure 1 and Figure 8 , the first driver includes a mounting plate 220 and an air pump (not shown in the figure). The mounting plate 220 is provided with a plurality of mounting holes 221. The mounting holes 221 correspond to the ejector pins 210 one by one, and the ejector pins 210 are slidably inserted into the mounting holes 221. The air pump is communicated with each mounting hole 221 through a pipeline. The air pump is used to blow air or suck air into the mounting holes 221 to drive the ejector pins 210 to extend out of or retract into the mounting holes 221. When the ejector pins 210 need to descend, the air pump can blow air into the mounting holes 221 through the pipeline so that the ejector pins 210 can slide downward along the mounting holes 221. When the ejector pins 210 need to ascend, the air pump can suck air from the mounting holes through the pipeline so that the ejector pins 210 can slide upward along the mounting holes. By blowing air or sucking air into the mounting holes 221 by the air pump to realize the descent or ascent of the ejector pins 210, the compressibility of air can play a buffering role when the ejector pins 210 touch the workpiece, thereby reducing the damage of the ejector pins 210 to the workpiece.

[0044] Further, referring to Figure 8 , the upper die 200 further includes a guide plate 230. The guide plate 230 is arranged below the mounting plate 220. The guide plate 230 is provided with a plurality of second guide holes 231. The second guide holes 231 correspond to the ejector pins

[0045] 210 one by one, and the ejector pins 210 are slidably inserted into the second guide holes 231. By providing the guide plate 230, the second guide holes 231 on the guide plate 230 can guide the ejector pins 210, so that the ejector pins 210 can accurately insert into the corresponding bearing through holes 610.

[0046] In some embodiments of the present invention, referring to Figure 3 and Figure 4 , the positioning plate 310 is provided with positioning pins 312. The cleaning plate 500 is provided with a plurality of first positioning holes penetrating through the cleaning plate 500. The jig plate 600 is provided with a plurality of second positioning holes. The positioning pins 312, the first positioning holes and the second positioning holes correspond to each other one by one. By inserting the positioning pins 312 into the first positioning holes, the acupoints 510 on the cleaning plate 500 can be made to correspond to the first guide holes 311 on the positioning plate 310 one by one. By inserting the positioning pins 312 into the second positioning holes, the bearing through holes 610 in the jig plate 600 can be made to correspond to the acupoints 510 on the cleaning plate 500 one by one; further, the workpiece in the jig plate 600 can accurately fall into the corresponding acupoints 510 on the cleaning plate 500.

[0047] In some embodiments of the present invention, the blanking system further includes a controller. A sensor 120 is installed on the frame 100. The sensor 120 is disposed below the top plate 320 and is used to detect the position of the top plate 320. The controller is electrically connected to the sensor 120 and the driving assembly 400 respectively. For example, as Figure 1 shown, the sensor 120 is disposed directly below the top plate 320. When the driving assembly 400 drives the top plate 320 to move, the sensor 120 can detect the position of the top plate 320 in real time and transmit the position information of the top plate 320 to the controller. Furthermore, after the top plate 320 rises to a preset height, the controller can control the driving assembly 400 to stop driving, so as to avoid the collision between the ejector pin 210 and the workpiece in the fixture plate 600, thereby damaging the workpiece.

[0048] In some embodiments of the present invention, the frame 100 includes a guide rail 110 extending vertically. The driving assembly 400 includes a second driver 420 and a mounting bracket 410. The mounting bracket 410 is slidably disposed on the guide rail 110. The mounting bracket 410 is connected to the top plate 320, and the driving assembly 400 is connected to the mounting bracket 410. For example, as Figure 1 shown, two guide rails 110 extending vertically are provided on the mounting bracket 410. The mounting bracket 410 is slidably disposed on the guide rail 110. The output end of the second driver 420 is connected to the mounting bracket 410, and the top plate 320 is mounted on the mounting bracket 410. Driven by the second driver 420, the mounting bracket 410 can slide up and down along the guide rail 110, and then the mounting bracket 410 can drive the top plate 320 to move up and down.

[0049] Further, referring to Figure 2 , the second driver 420 includes a motor 421 and a belt drive structure 422. The motor 421 is connected to the belt drive structure 422, and the mounting bracket 410 is connected to the belt of the belt drive structure 422.

[0050] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A blanking system, characterized in that, It includes a blanking device, a jig plate (600) and a cleaning plate (500). A plurality of bearing through holes (610) for placing workpieces are provided on the jig plate (600). A plurality of acupoints (510) penetrating through the cleaning plate (500) are provided on the cleaning plate (500). The blanking device includes: A frame (100) with a bearing platform provided thereon. An upper die (200) provided on the frame (100). The upper die (200) includes a plurality of ejector pins (210), and at least part of the ejector pins (210) correspond to the bearing through holes (610) one by one. A lower die (300) provided on the frame (100) and located below the upper die (200). The lower die (300) includes a positioning plate (310) and a top plate (320). The positioning plate (310) is carried on the bearing platform. A plurality of first guiding holes (311) penetrating through the positioning plate (310) are provided on the positioning plate (310). A positioning structure is provided on the positioning plate (310). The positioning structure can sequentially position the cleaning plate (500) and the jig plate (600) on the positioning plate (310) from bottom to top, so that each bearing through hole (610) is communicated with an acupoint (510) and a first guiding hole (311). The top plate (320) is provided below the positioning plate (310). A plurality of bearing structures (330) are provided on the top plate (320). The bearing structures (330) are used to carry workpieces, and the bearing structures (330) correspond to the first guiding holes (311) one by one. A driving assembly (400) provided on the frame (100). The driving assembly (400) is connected to the top plate (320) and is used to drive the top plate (320) to move up and down, so that the bearing structure (330) can pass through the first guiding hole (311) and partially extend into the acupoint (510), and can make the top plate (320) drive the positioning plate (310) to separate from the bearing platform and approach the upper die (200). The acupoint (510) includes a receiving portion (511) and two communicating portions (512). The communicating portions (512) are located below the receiving portion (511) and are communicated with the receiving portion (511). The receiving portion (511) is used to receive workpieces. The bearing structure (330) includes two bearing columns (331). The two bearing columns (331) of each bearing structure (330) correspond to the two communicating portions (512) in an acupoint (510) one by one. Driven by the driving assembly (400), the bearing columns (331) can pass through the communicating portions (512) and partially extend into the receiving portion (511).

2. The blanking system according to claim 1, characterized in that, A limiting groove (331a) is formed on the upper end surface of the bearing column (331), and the limiting groove (331a) is used to limit the workpiece.

3. The blanking system according to claim 1, characterized in that, The upper die (200) further includes a first driver, which is connected to the ejector pin (210) and is used to drive the ejector pin (210) to move up and down.

4. A blanking system according to claim 3, characterized in that, The first driver includes a mounting plate (220) and an air pump. A plurality of mounting holes (221) are provided on the mounting plate (220). The mounting holes (221) correspond to the ejector pins (210) one by one, and the ejector pins (210) are slidably disposed in the mounting holes (221). The pipelines of the air pump are respectively communicated with each of the mounting holes. The air pump is used to blow air or suck air into the mounting holes (221) to drive the ejector pins (210) to extend out of or retract into the mounting holes (221).

5. A blanking system according to claim 4, characterized in that, The upper die (200) further includes a guide plate (230). The guide plate (230) is disposed below the mounting plate (220). A plurality of second guide holes (231) are provided on the guide plate (230). The second guide holes (231) correspond to the ejector pins (210) one by one, and the ejector pins (210) are slidably disposed in the second guide holes (231).

6. The blanking system according to claim 1, wherein The positioning structure includes a plurality of positioning pins (312). A plurality of first positioning holes penetrating through the cleaning plate (500) are provided on the cleaning plate (500). A plurality of second positioning holes are provided on the jig plate (600). The positioning pins (312), the first positioning holes and the second positioning holes correspond to each other one by one.

7. A blanking system according to claim 1, characterized in that, It further includes a controller. A sensor (120) is installed on the frame (100). The sensor (120) is disposed below the top plate (320) and is used to detect the position of the top plate (320). The controller is electrically connected to the sensor (120) and the driving assembly (400) respectively.

8. A blanking system according to claim 1, characterized in that The frame (100) includes a guide rail (110) extending vertically. The driving assembly (400) includes a second driver (420) and a mounting bracket (410). The mounting bracket (410) is slidably disposed on the guide rail (110). The mounting bracket (410) is connected to the top plate (320). The driving assembly (400) is connected to the mounting bracket (410).

9. The blanking system according to claim 8, wherein, The second driver (420) includes a motor (421) and a belt transmission structure (422). The motor (421) is connected to the belt transmission structure (422). The mounting bracket (410) is connected to the belt of the belt transmission structure (422).

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