A pole piece blanking device and a pole piece blanking method

Abstract

The present invention provides a pole piece unloading device and pole piece unloading method, which include: a connecting material belt; a unloading mechanism, the unloading mechanism is arranged at the discharge end of the connecting material belt, and includes a first bracket and a material box, and the material box is a material unloading channel above the material box, and the pole piece to be unloaded falls from the connecting material belt and is stacked into the material box, and the material box moves up and down along the first bracket; a cache mechanism, the cache mechanism includes a linkage component and a support component, the support component includes at least one linkage shaft and a plurality of support plates, the linkage shaft is connected to the linkage component, and the plurality of support plates are respectively connected to the linkage shaft, and are flipped above the material box through the linkage component, when the material box is close to the connecting material belt, the support plate avoids the material unloading channel; when the material box is far away from the connecting material belt, the support plate stops the material unloading channel. Compared with the conventional pole piece unloading technology at this stage, the present application has the advantages of high degree of coordination of various mechanisms, high unloading efficiency, reduced pole piece unloading damage, and avoidance of front mechanism shutdown.

Description

Technical Field

[0001] The invention relates to the technical field of battery accessories, and in particular to a pole piece blanking device and a pole piece blanking method. Background Art

[0002] In the battery manufacturing industry, the production process of pole pieces includes multiple steps, such as slurry preparation, coating, drying, cutting and lamination. After these steps are completed, the processed pole pieces need to be effectively removed and transferred to the next work area. At present, the commonly used material transfer methods in the industry mainly include material punching, belt rear drop method and robot material removal. However, these methods have some problems in practical application.

[0003] Since the punching process may cause damage to the pole piece during high-speed production, especially at the edge of the pole piece or at the thin film structure, it is not suitable for high-speed processing. The belt rear blanking method relatively protects the pole piece, but when switching the material box, in order to prevent the pole piece from falling in the gap between the material boxes, the front equipment such as the film making device and the transportation device need to be shut down, which leads to production interruption and reduced efficiency. At the same time, the robot picking up materials can adapt to pole pieces of different shapes and sizes to a certain extent, but in high-speed production, the reaction time and accuracy of the robot may not meet the requirements, which also causes problems such as pole piece damage or low material picking efficiency. Especially in the cutting and stacking machine, the belt transmission system needs to stop when the robot picks up the material, which not only affects the continuous supply of pole pieces, but may also cause the entire production line to stop. Summary of the invention

[0004] To this end, the technical problem to be solved by the present invention is to overcome the problem in the prior art that the pole piece connection process requires shutdown, which affects the transfer efficiency, and to provide a pole piece unloading device and a pole piece unloading method.

[0005] To solve the above technical problems, the present invention provides a pole piece unloading device, which comprises: a connecting material belt; a unloading mechanism, which is arranged at the discharge end of the connecting material belt, and comprises a first bracket and a material box, and above the material box is a unloading channel, the pole pieces to be unloaded fall from the connecting material belt and are stacked in the material box, and the material box moves up and down along the first bracket; a cache mechanism, which comprises a linkage assembly and a support assembly, and the support assembly comprises at least one linkage shaft and a plurality of support plates, the linkage shaft is connected to the linkage assembly, and the plurality of support plates are respectively connected to the linkage shaft, and are flipped over the material box by the linkage assembly, when the material box is close to the connecting material belt, the support plate avoids the unloading channel; when the material box is away from the connecting material belt, the support plate blocks the unloading channel.

[0006] In one embodiment of the present invention, a plurality of first avoidance grooves are provided on the bottom plate of the material box; the electrode unloading device also includes a connecting piece mechanism, the connecting piece mechanism includes a second bracket and a plurality of supporting claws, the second bracket is relatively close to / far away from the unloading mechanism, the plurality of supporting claws all extend toward the material dropping channel, and move up and down along the second bracket between the support assembly and the material box, wherein the plurality of supporting claws are arranged one-to-one correspondingly to the plurality of first avoidance grooves.

[0007] In one embodiment of the present invention, a plurality of the first avoidance grooves are recessed downward from the upper surface of the material box bottom plate, and any of the first avoidance grooves penetrates the bottom plate along the first direction, and the thickness of the claw in the third direction is smaller than the depth of the first avoidance groove in the third direction.

[0008] In one embodiment of the present invention, the material box is further provided with a plurality of baffles, and the plurality of baffles all extend along the third direction, and the plurality of baffles are arranged around the bottom plate and avoid the plurality of the first avoidance grooves.

[0009] In one embodiment of the present invention, the connecting mechanism includes a second transverse moving module, the second transverse moving module extends along the first direction, and the second bracket is slidably connected to the second transverse moving module; the second bracket is provided with a third lifting module and a slide plate, one side of the slide plate is slidably connected to the third lifting module, and the other side is connected to a plurality of the supporting claws.

[0010] In one embodiment of the present invention, it also includes a control system, and the unloading mechanism, the buffer mechanism and the sheet joining mechanism are respectively connected to the control system.

[0011] In one embodiment of the present invention, the cache mechanism also includes a connecting frame, which is arranged around the blanking channel, and a second lifting module and a plurality of second avoidance grooves are provided on the connecting frame. The linkage assembly is slidably connected to the second lifting module, and the plurality of second avoidance grooves are arranged one-to-one correspondingly to the plurality of the support plates.

[0012] In one embodiment of the present invention, the linkage assembly includes a cam seat, a sliding shaft, a connecting plate and a rotating member. The cam seat is slidably connected to the second lifting module and is provided with a guide groove. The guide groove extends from the edge of the cam seat to its center along a first direction. The sliding shaft is embedded in the guide groove and moves along the guide groove. The two ends of the connecting plate are respectively rotatably connected to the sliding shaft and the rotating member. The rotating member is connected to the support assembly and drives the support assembly to flip during the lifting and lowering process of the cam seat.

[0013] In one embodiment of the present invention, the unloading mechanism also includes a first transverse moving module, the first transverse moving module extends along a first direction, and the first bracket is slidably connected to the first transverse moving module; a first lifting module is provided on the first bracket, the first lifting module extends along a third direction, and the material box is slidably connected to the two first lifting modules.

[0014] The present invention also provides a method for unloading electrode sheets, which adopts the above-mentioned electrode sheet unloading device to uninterruptedly unload electrode sheets, including the following steps: S1, when the material box is close to the connecting material belt, the electrode sheets to be unloaded are moved toward the unloading mechanism through the connecting material belt, and are stacked in the material box through the unloading channel; S2, when the material box is full of material, it is moved away from the connecting material belt, and at the same time, the unloading channel is blocked by multiple support plates, so that the electrode sheets to be unloaded are stacked on multiple support plates; S3, the electrode sheets in the material box are taken out, and after the emptied material box is moved toward the connecting material belt to its initial position, the support plate is flipped to avoid the unloading channel, thereby the electrode sheets on it fall down and are stacked in the material box; S4, steps S1 to S3 are repeated to realize the uninterrupted unloading process of the electrode sheets.

[0015] In one embodiment of the present invention, step S3 is specifically as follows: S31, take out the electrode pieces in the material box, and move the emptied material box toward the connecting material belt, and at the same time move a plurality of supporting claws to the bottom of the support plate, flip the support plate to avoid the material drop channel, thereby stacking the electrode pieces thereon on the plurality of supporting claws; S32, when the material box returns to a position close to the connecting material belt, the plurality of supporting claws drive the electrode pieces thereon to move toward the material box, until the plurality of supporting claws correspond to the plurality of first avoidance grooves embedded in the bottom plate of the material box, and then the plurality of supporting claws are pulled out of the material box, and at this time the electrode pieces are stacked in the material box.

[0016] In one embodiment of the present invention, step S2 is specifically as follows: when the material box is full of material, it is kept away from the connecting material belt. At this time, the plurality of support plates are flipped over within the falling time interval of two adjacent pole pieces to stop the falling channel.

[0017] The above technical solution of the present invention has the following advantages compared with the prior art:

[0018] The electrode piece unloading device and electrode piece unloading method described in the present invention transport the electrode piece to be unloaded to the unloading mechanism through the connecting material belt, and recycle it through the unloading mechanism. When the material box is full, the buffer mechanism can support and buffer the electrode piece continuously transmitted by the connecting material belt in the gap of the material replacement box, avoiding the problem of the front mechanism being shut down as a whole in order to replace the material box in the conventional technology. When the material box is reset, the buffer mechanism can avoid the unloading channel and allow the electrode piece to be unloaded again in the material box, thereby realizing the process of uninterrupted unloading of the electrode piece. Compared with the conventional electrode piece unloading technology at this stage, the present application has the advantages of high degree of coordination among various mechanisms, high unloading efficiency, reduced electrode piece unloading damage, and avoidance of front mechanism shutdown. It is a new type of electrode piece unloading device and electrode piece unloading method with broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the electrode blanking device in the preferred embodiment of the present invention;

[0021] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of the feeding mechanism in the electrode feeding device shown;

[0022] Figure 3 yes Figure 2 A schematic diagram of the three-dimensional structure of the material box in the material unloading mechanism;

[0023] Figure 4 yes Figure 1 A schematic diagram of the three-dimensional structure of the buffer mechanism in the electrode blanking device shown;

[0024] Figure 5 yes Figure 4 The enlarged schematic diagram at A in the middle;

[0025] Figure 6 yes Figure 1 A schematic diagram of the three-dimensional structure of the electrode joining mechanism in the electrode blanking device shown.

[0026] Description of the reference numerals in the specification: 100, connecting material belt; 200, unloading mechanism; 210, material box; 211, bottom plate; 2111, first avoidance groove; 212, baffle; 213, connecting plate; 220, lifting platform; 230, first bracket; 231, first lifting module; 232, first lifting drive; 240, first transverse module; 241, first transverse drive; 300, cache mechanism; 310, connecting frame; 311, second lifting module; 320, linkage assembly ; 321, second lifting drive; 322, cam seat; 323, sliding shaft; 324, connecting plate; 325, rotating member; 330, supporting assembly; 331, connecting shaft; 332, supporting plate; 400, splicing mechanism; 410, second transverse movement module; 411, second transverse movement drive; 420, second bracket; 421, third lifting module; 422, third lifting drive; 423, sliding plate; 430, supporting claw; X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention. Embodiment 1

[0028] See also Figure 1 As shown, this embodiment provides a pole piece unloading device, which includes: a connecting material belt 100; a unloading mechanism 200, which is arranged at the discharge end of the connecting material belt 100, and includes a first bracket 230 and a material box 210, and the upper part of the material box 210 is a material unloading channel, and the pole pieces to be unloaded fall from the connecting material belt 100 and are stacked in the material box 210, and the material box 210 moves up and down along the first bracket 230; a buffer mechanism 300, and the buffer mechanism 300 includes a linkage component 320 and a support group Part 330, the supporting assembly 330 includes at least one connecting shaft 331 and a plurality of supporting plates 332, the connecting shaft 331 is connected to the connecting assembly 320, and the plurality of supporting plates 332 are respectively connected to the connecting shaft 331, and are flipped over the material box 210 through the connecting assembly 320, when the material box 210 is close to the connecting material belt 100, the supporting plate 332 avoids the material drop channel; when the material box 210 is away from the connecting material belt 100, the supporting plate 332 stops the material drop channel.

[0029] The electrode piece unloading device and electrode piece unloading method described in the present invention transport the electrode piece to be unloaded to the unloading mechanism 200 through the connecting material belt 100, and recycle it through the unloading mechanism 200. When the material box 210 is full, the buffer mechanism 300 can support and buffer the electrode piece continuously transmitted by the connecting material belt 100 in the gap of the material replacement box 210, avoiding the problem of the front mechanism being shut down as a whole in order to replace the material box 210 in the conventional technology. When the material box 210 is reset, the buffer mechanism 300 can avoid the unloading channel and allow the electrode piece to be unloaded again in the material box 210, thereby realizing the process of uninterrupted unloading of the electrode piece. Compared with the conventional electrode piece unloading technology at this stage, the present application has the advantages of high degree of coordination among various mechanisms, high unloading efficiency, reduced electrode piece unloading damage, and avoidance of front mechanism shutdown, and is a new type of electrode piece unloading device and electrode piece unloading method with broad application prospects.

[0030] For ease of description, in this embodiment, the transmission direction of the connecting material belt 100 is defined as a first direction X, the width direction of the device is defined as a second direction Y, and the height direction of the device is defined as a third direction Z, wherein the first direction X, the second direction Y and the third direction Z are perpendicular to each other, and the first direction X and the second direction Y are located in the same plane.

[0031] See also Figure 1 As shown, the connecting material belt 100 in this embodiment is preferably a conveyor belt, whose feed end is abutted against the film making equipment, and whose discharge end is arranged toward the unloading mechanism 200, and the connecting material belt 100 in this embodiment is in an uninterrupted working state. The unloading mechanism 200 in this embodiment is used to receive the electrode sheets output by the connecting material belt 100, and the cache mechanism 300 is used to cache the electrode sheets transmitted by the connecting material belt 100 during the operation gap of the unloading mechanism 200, thereby avoiding the problem that the electrode sheets that are continuously transmitted cannot be unloaded during the switching gap of the unloading box 210.

[0032] See also Figure 2As shown, the unloading mechanism 200 in this embodiment is provided with two first brackets 230, and the two first brackets 230 are arranged at intervals on both sides of the material box 210 along the second direction Y. The first brackets 230 are provided with a first lifting module 231, and the first lifting module 231 extends along the third direction Z. The material box 210 is slidably connected to the two first lifting modules 231, and the two ends of the material box 210 are slidably connected to the two first lifting modules 231, thereby improving the stability of the material box 210 during its lifting process. When the material box 210 is full of material, it can descend to the bottom along the first lifting module 231, and then move in a direction away from the connecting material belt 100, so that the operator can recycle or replace the full material box 210. Specifically, the unloading mechanism 200 in this embodiment also includes a lifting platform 220, and the material box 210 is slidably connected to the first lifting module 231 through the lifting platform 220. In this embodiment, the unloading mechanism 200 further includes a first transverse module 240, the first transverse module 240 extends along the first direction X, and the first bracket 230 is slidably connected to the first transverse module 240. Further, in this embodiment, the first transverse module 240 is provided with a first transverse driver 241, and the first bracket 230 is provided with a first lifting driver 232. The first bracket 230 moves along the first transverse module 240 through the first transverse driver 241, and the material box 210 moves along the first lifting module 231 through the first lifting driver 232. Furthermore, in this embodiment, the first transverse driver 241 and the first lifting driver 232 are preferably motors.

[0033] See also Figure 3 As shown, the material box 210 in this embodiment includes a bottom plate 211, a plurality of baffles 212 and two fixed plates 213, wherein the bottom plate 211 is preferably a rectangular plate slightly larger than the pole piece, and the plurality of baffles 212 are arranged around the edge of the bottom plate 211 and extend along the third direction Z, thereby stopping and limiting the pole piece in the material box 210 from the side, and the fixed plate 213 is arranged at the bottom of the bottom plate 211, which is used to connect with the lifting platform 220. Further, a plurality of first avoidance grooves 2111 are arranged on the bottom plate 211 of the material box 210, and the plurality of first avoidance grooves 2111 are arranged to be recessed downward from the upper surface of the bottom plate 211 of the material box 210, and any of the first avoidance grooves 2111 penetrate the bottom plate 211 along the first direction X, and the plurality of baffles 212 avoid the plurality of first avoidance grooves 2111 in the first direction X, and this structural arrangement can form a gap between the pole piece and the bottom plate 211, so as to cooperate with the subsequent device.

[0034] See also Figure 4As shown, the support assembly 330 in this embodiment is arranged above the material box 210, and includes two connecting shafts 331. The two connecting shafts 331 extend along the second direction Y and are symmetrically arranged on both sides of the blanking channel along the first direction X. A plurality of evenly spaced support plates 332 are provided on any connecting shaft 331, and the support plates 332 rotate with the connecting shaft 331 to stop / avoid the blanking channel. Furthermore, the cache mechanism 300 also includes a connection frame 310, which is arranged around the blanking channel. The connection frame 310 is provided with a second lifting module 311 and a plurality of second avoidance grooves. The linkage assembly 320 is slidably connected to the second lifting module 311. The plurality of second avoidance grooves are arranged in a one-to-one correspondence with the plurality of support plates 332. During the rotation of the support assembly 330, the plurality of support plates 332 can enter and exit the blanking channel through the plurality of avoidance grooves. At the same time, the second avoidance groove extends upward from the bottom of the connection frame 310, and its extended end can also limit the flipping angle of the support plate 332. Specifically, in this embodiment, when the support plate 332 rotates to the extreme position, the plurality of support plates 332 extend in the horizontal direction.

[0035] See also Figure 4 and Figure 5 As shown, in this embodiment, two linkage components 320 are correspondingly provided in the second direction Y, and the two linkage components 320 are respectively arranged at the two ends of the two linkage shafts 331, and are respectively connected to the second lifting module 311 on the connection frame 310, and the second lifting module 311 extends along the third direction Z. Any linkage component 320 is simultaneously connected to the two linkage shafts 331. Here, one linkage component 320 is taken as an example for introduction: see Figure 5 As shown, the linkage assembly 320 includes a cam seat 322, a sliding shaft 323, a connecting plate 324, a rotating member 325 and a second lifting driver 321. The cam seat 322 is slidably connected to the second lifting module 311. The second lifting driver 321 is arranged on the second lifting module 311 to drive the cam seat 322 to move. A guide groove is provided on the cam seat 322. The guide groove is located in the upper middle part of the cam seat 322 and extends from the edge of the cam seat 322 to its center along the first direction X. The sliding shaft 323 is embedded in the guide groove and moves along the guide groove. The two ends of the connecting plate 324 are rotatably connected to the sliding shaft 323 and the rotating member 325 respectively. The rotating member 325 is connected to the supporting assembly 330 and drives the supporting assembly 330 to flip during the lifting and lowering process of the cam seat 322.

[0036] Specifically, in this embodiment, when the support plate 332 avoids the blanking channel, the cam seat 322 is located at the bottom of the second lifting module 311, and the slide shaft 323 is located at the extended end of the guide groove; when the support plate 332 flips to block the blanking channel, the cam seat 322 is located at the top of the second lifting module 311, and the slide shaft 323 moves outward from the extended end of the guide groove, and the rotating member 325 rotates counterclockwise to drive the support plate 332 to flip to a horizontal position toward the blanking channel. Specifically, in this embodiment, the movement of the cam seat 322 can drive the two support assemblies 330 at the same time.

[0037] See also Figure 6 As shown, in this embodiment, the electrode unloading device further includes a splicing mechanism 400, which is used to connect the electrode in the cache mechanism 300 to the unloading box 210, and the splicing mechanism 400 includes a second bracket 420 and a plurality of claws 430, the second bracket 420 is relatively close to / far away from the unloading mechanism 200, and the plurality of claws 430 all extend toward the unloading channel, and move up and down along the second bracket 420 between the support assembly 330 and the material box 210, wherein the plurality of claws 430 are arranged in a one-to-one correspondence with the plurality of the first avoidance grooves 2111. Furthermore, the thickness of the claws 430 in the third direction Z is less than the depth of the first avoidance grooves 2111 in the third direction Z. When it is necessary to receive the electrode pieces in the cache mechanism 300, the splicing mechanism 400 moves along the first direction X to the bottom of the cache mechanism 300. At this time, the multiple pallets 332 in the cache mechanism 300 flip over and change from a stop state to an avoidance state, thereby enabling the electrode pieces in the cache mechanism 300 to fall and be stacked in the splicing mechanism 400. Thereafter, the above-mentioned cached electrode pieces are stably placed inside the material box 210 through the splicing mechanism 400. The splicing mechanism 400 can prevent the cached electrode pieces from excessively colliding between the pallet 332 and the material box 210, thereby improving the stability of electrode piece transportation and avoiding damage to the electrode pieces. To achieve the above-mentioned moving process, the splice mechanism 400 in this embodiment includes a second transverse moving module 410, the second transverse moving module 410 extends along the first direction X, the second bracket 420 is slidably connected to the second transverse moving module 410; the second bracket 420 is provided with a third lifting module 421 and a slide plate 423, one side of the slide plate 423 is slidably connected to the third lifting module 421, and the other side is connected to a plurality of the supporting claws 430. Correspondingly, a second transverse moving driver 411 is provided on the second transverse moving module 410 to drive the second bracket 420 to move along the first direction X, and a third lifting driver 422 is provided on the second bracket 420 to drive the supporting claws 430 to move along the third direction Z. Furthermore, the second transverse moving driver 411 and the third lifting driver 422 in this embodiment are also configured as motors.

[0038] This embodiment also includes a control system. The unloading mechanism 200, the buffer mechanism 300 and the splicing mechanism 400 are respectively connected to the control system. During the actual operation, the operator can adjust the above process in real time through the control system according to the actual processing requirements, thereby improving the flexibility of the use of the device. The control system can also be used to preset parameters for the moving process of the device, thereby improving the degree of automation of the device. Embodiment 2

[0039] This embodiment provides a pole piece blanking method, which uses the pole piece blanking device to continuously blank pole pieces, and includes the following steps:

[0040] S1. When the material box 210 is close to the connecting material belt 100, the electrode pieces to be unloaded are moved toward the unloading mechanism 200 through the connecting material belt 100, and are stacked in the material box 210 through the unloading channel; further, the above process is a conventional process for unloading electrode pieces, which can be applicable to unloading transmission at different speeds.

[0041] S2, when the material box 210 is full of material, it is moved away from the connecting material belt 100, and at the same time, the plurality of support plates 332 are used to block the material drop channel, so that the electrode pieces to be dropped are stacked on the plurality of support plates 332; further, step S2 in this embodiment is specifically as follows: when the material box 210 is full of material, it is moved away from the connecting material belt 100, and at this time, the plurality of support plates 332 are turned over within the time interval of the drop of two adjacent electrode pieces to stop the material drop channel. Based on this rapid switching process, the support plate 332 can complete the switching between the gaps under the two electrode pieces, thereby ensuring the continuity of the electrode piece drop.

[0042] S3, taking out the electrode pieces in the material box 210, and moving the emptied material box 210 to its initial position toward the connecting material belt 100, flipping the support plate 332 to avoid the material drop channel, thereby dropping the electrode pieces thereon and stacking them in the material box 210; further, step S3 in this embodiment is specifically as follows:

[0043] S31, taking out the electrode pieces in the material box 210, and moving the emptied material box 210 toward the connecting material belt 100, and moving the plurality of claws 430 to below the support plate 332, and then turning over the support plate 332 to avoid the material drop channel, thereby stacking the electrode pieces thereon on the plurality of claws 430;

[0044] S32. When the material box 210 returns to a position close to the connecting material belt 100, the plurality of the supporting claws 430 drive the pole pieces thereon to move toward the material box 210 until the plurality of the supporting claws 430 correspond to the plurality of first avoidance grooves 2111 embedded in the bottom plate 211, and then the plurality of the supporting claws 430 are pulled out of the material box 210. At this time, the pole pieces are stacked in the material box 210, and the material box 210 recycling process is completed.

[0045] S4, repeating steps S1 to S3 to realize the uninterrupted feeding process of the pole piece. In this process, the connection mechanism 400, the buffer mechanism 300 and the feeding mechanism 200 have a high degree of harmony, which can be servo-controlled with high precision by the control system, so that the uninterrupted feeding process of the pole piece can be carried out smoothly.

[0046] In summary, the electrode piece unloading device and electrode piece unloading method described in the present invention transport the electrode piece to be unloaded to the unloading mechanism 200 through the connecting material belt 100, and recycle it through the unloading mechanism 200. When the material box 210 is full, the buffer mechanism 300 can support and buffer the electrode piece continuously transmitted by the connecting material belt 100 in the gap of the material replacement box 210, avoiding the problem of shutting down the entire front mechanism in order to replace the material box 210 in the conventional technology. When the material box 210 is reset, the buffer mechanism 300 can avoid the unloading channel and allow the electrode piece to be unloaded again in the material box 210, thereby realizing the process of uninterrupted unloading of the electrode piece. Compared with the conventional electrode piece unloading technology at this stage, the present application has the advantages of high degree of coordination among various mechanisms, high unloading efficiency, reduced electrode piece unloading damage, and avoidance of front mechanism shutdown. It is a new type of electrode piece unloading device and electrode piece unloading method with broad application prospects.

[0047] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. A pole piece blanking device, characterized in that: include: Splice tape; A material discharge mechanism, the material discharge mechanism is arranged at the discharge end of the connecting material belt, and comprises a first bracket and a material box, the upper part of the material box is a material discharge channel, the electrode pieces to be discharged fall from the connecting material belt and are stacked in the material box, the material box is lifted and moved along the first bracket, a plurality of first avoidance grooves are arranged on the bottom plate of the material box, the plurality of first avoidance grooves are recessed downward from the upper surface of the bottom plate of the material box, and any of the first avoidance grooves penetrates the bottom plate along the first direction; A cache mechanism, the cache mechanism includes a linkage assembly and a support assembly, the support assembly includes at least one linkage shaft and a plurality of support plates, the linkage shaft is connected to the linkage assembly, the plurality of support plates are respectively connected to the linkage shaft, and are turned over above the material box by the linkage assembly, when the material box is close to the connecting material belt, the support plates avoid the material drop channel; When the material box is away from the connecting material belt, the support plate blocks the material drop channel; A splicing mechanism, the splicing mechanism includes a second bracket, a plurality of supporting claws and a second transverse moving module, the second bracket is relatively close to / far away from the unloading mechanism, the plurality of supporting claws all extend toward the unloading channel, and move up and down between the supporting assembly and the material box along the second bracket, wherein the plurality of supporting claws are arranged in a one-to-one correspondence with the plurality of first avoidance grooves, the thickness of the supporting claws in the third direction is less than the depth of the first avoidance groove in the third direction, the second transverse moving module extends along the first direction, and the second bracket is slidably connected to the second transverse moving module; a third lifting module and a slide plate are provided on the second bracket, one side of the slide plate is slidably connected to the third lifting module, and the other side is connected to the plurality of supporting claws.

2. The electrode blanking device according to claim 1, characterized in that: The material box is further provided with a plurality of baffles, and the plurality of baffles all extend along the third direction. The plurality of baffles are arranged around the bottom plate and avoid the plurality of the first avoidance grooves.

3. The electrode blanking device according to claim 1, characterized in that: It also includes a control system, and the unloading mechanism, the buffer mechanism and the sheet joining mechanism are respectively connected to the control system.

4. The electrode blanking device according to claim 1, characterized in that: The cache mechanism also includes a connecting frame, which is arranged around the blanking channel. The connecting frame is provided with a second lifting module and a plurality of second avoidance grooves. The linkage assembly is slidably connected to the second lifting module, and the plurality of second avoidance grooves are arranged in a one-to-one correspondence with the plurality of support plates.

5. The pole piece unloading device according to claim 4, characterized in that: The linkage assembly includes a cam seat, a sliding shaft, a connecting plate and a rotating member. The cam seat is slidably connected to the second lifting module and is provided with a guide groove. The guide groove extends from the edge of the cam seat to the center thereof along a first direction. The sliding shaft is embedded in the guide groove and moves along the guide groove. The two ends of the connecting plate are respectively rotatably connected to the sliding shaft and the rotating member. The rotating member is connected to the supporting assembly and drives the supporting assembly to flip during the lifting and lowering process of the cam seat.

6. The pole piece unloading device according to claim 1, characterized in that: The unloading mechanism also includes a first transverse moving module, which extends along a first direction, and the first bracket is slidably connected to the first transverse moving module; a first lifting module is provided on the first bracket, and the first lifting module extends along a third direction, and the material box is slidably connected to the two first lifting modules.

7. A method for cutting pole pieces, characterized in that: The electrode uninterruptedly unloads the electrode by using the electrode unloading device described in any one of claims 1 to 6, comprising the following steps: S1, when the material box is close to the connecting material belt, the electrode pieces to be unloaded are moved toward the unloading mechanism through the connecting material belt, and are stacked in the material box through the unloading channel; S2, when the material box is full of material, it is moved away from the connecting material belt, and at the same time, a plurality of support plates are used to block the material drop channel, so that the electrode pieces to be dropped are stacked on the plurality of support plates; S3, taking out the electrode pieces in the material box, and moving the emptied material box toward the connecting material belt to its initial position, flipping the support plate to avoid the material drop channel, thereby dropping the electrode pieces thereon and stacking them in the material box; S4. Repeat steps S1 to S3 to achieve an uninterrupted feeding process of the electrode.

8. The pole piece blanking method according to claim 7, characterized in that: Step S3 is specifically as follows: S31, taking out the electrode pieces in the material box, and moving the emptied material box toward the connecting material belt, and moving a plurality of claws to the bottom of the support plate, and then turning the support plate over to avoid the material drop channel, thereby stacking the electrode pieces on the plurality of claws; S32. When the material box returns to a position close to the connecting material belt, the plurality of supporting claws drive the pole pieces thereon to move toward the material box until the plurality of supporting claws correspond to the plurality of first avoidance grooves embedded in the bottom plate of the material box, and then the plurality of supporting claws are pulled out of the material box, and at this time the pole pieces are stacked in the material box.

9. The pole piece blanking method according to claim 7, characterized in that: Step S2 specifically includes: when the material box is full of material, it is moved away from the connecting material belt. At this time, the plurality of support plates are turned over within the time interval of the falling of two adjacent pole pieces to stop the falling channel.

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