Pole piece blanking auxiliary device and pole piece blanking device

By setting up an adsorption channel and auxiliary rollers in the electrode feeding device, the problem of uneven adsorption force of the electrode was solved, the flat transmission of the electrode was achieved, and the quality and yield of the electrode were improved.

CN223878775UActive Publication Date: 2026-02-06BEIJING PURE LITHIUM NEW ENERGY TECH CO LTD
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Patent Information

Application Number
CN202520179116.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-05
Publication Date
2026-02-06
Estimated Expiration
2035-02-05

AI Technical Summary

Technical Problem

In existing electrode feeding devices, the electrode adsorption force between the conveyor belt and the suction plate is unevenly distributed, resulting in uneven electrode surfaces inside the electrode storage box, with creases or wrinkles, which affects the yield rate.

Method used

An adsorption channel is formed by setting a first suction hole on the suction plate and a second suction hole on the conveyor belt. The electrode, the conveyor belt and the suction plate are stacked and abutted together by an auxiliary roller. The gap adjustment component is used to adjust the gap between the auxiliary roller and the conveyor belt to ensure that the electrode and the belt are in close contact and reduce separation.

Benefits of technology

This improves the uniformity of the electrode's adsorption force, reduces the likelihood of the electrode being sucked into gaps or bulging, and ensures the quality and yield of the electrode.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a pole piece blanking auxiliary device and pole piece blanking device.The pole piece blanking auxiliary device comprises a suction plate with a negative pressure air suction function, a first suction hole is formed in one side wall of the suction plate, a conveying belt is arranged on the periphery of the suction plate in a surrounding mode, and the side wall, provided with the first suction hole, of the suction plate is attached to the conveying belt; second suction holes are formed in the conveying belt, an auxiliary roller is further arranged on one side of the suction plate, and the conveying belt attached to the suction plate is arranged between the suction plate and the auxiliary roller. Under the action of the auxiliary roller, the two sides of the belt are attached to the pole piece and the suction plate respectively, and the situation that the adsorption force of the pole piece is distributed unevenly is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of pole piece production, concretely relates to a pole piece blanking auxiliary device and pole piece blanking device. BACKGROUND

[0002] Die cutting is a crucial step in the current pole piece production process, when the die cutting process is carried out, usually the staff needs to place the pole piece roll on the feeding shaft first, then the unwound pole piece layer is cut through the die cutting die, the layered pole piece forms the sheet pole piece after the cutter, the pole piece is transferred to the tail end of the die cutting machine, and through the blanking machine, the pole piece is transferred to the storage box for collection.

[0003] At present, the pole piece blanking machine used in the related technology includes a suction plate for adsorbing the pole piece, a push plate for transferring the pole piece, and a pole piece storage box arranged at the bottom of the suction plate; wherein the bottom plate of the pole piece storage box can slide in the vertical direction, and the push plate is correspondingly arranged with the pole piece storage box; the suction plate is formed by connecting a plurality of strip-shaped air suction pipes, and the push plate is arranged in the gap between the plurality of air suction pipes in the vertical direction; the side wall of the suction plate is provided with a negative pressure fan, and a strip-shaped conveyor belt is arranged around the periphery of the suction plate; the bottom of the suction plate and the conveyor belt are both provided with suction holes, the pole piece can be attached to the conveyor belt and moved with the conveyor belt through the action of the suction holes, when the pole piece moves to the position of the push plate and the pole piece storage box, the bottom plate of the pole piece storage box is driven to move towards the suction plate, then the push plate is driven to move, the pole piece is transferred to the bottom plate of the pole piece storage box, and the storage of the pole piece is realized.

[0004] However, it is found in actual use that there is a separation position between the conveyor belt and the suction plate, the adsorption force of the pole piece is unevenly distributed, part of the surface of the pole piece in the pole piece storage box is uneven, creases and even wrinkles appear, and the yield of the pole piece is affected. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art, and provide a pole piece blanking auxiliary device and pole piece blanking device.

[0006] To solve the above technical problems, the basic idea of the technical scheme adopted by the utility model is:

[0007] In the first aspect, the application provides a pole piece blanking auxiliary device,

[0008] A pole piece blanking auxiliary device, comprising a suction plate with negative pressure air suction function and a conveyor belt, a first suction hole is formed in one side wall of the suction plate, a second suction hole is formed in the conveyor belt, the first suction hole and the second suction hole form a suction channel for adsorbing the pole piece, an auxiliary roller is further arranged on one side of the suction plate, and the auxiliary roller is used to make the pole piece, the conveyor belt and the suction plate stack against each other.

[0009] Preferably, two sides of the auxiliary roller are further connected with a gap adjusting assembly for adjusting the gap between the auxiliary roller and the conveying belt, and the gap adjusting assembly is connected with the suction plate.

[0010] Preferably, the gap adjusting assembly comprises a sliding block, and a sliding rail is formed on one side of the sliding block towards the auxiliary roller, and the auxiliary roller shaft is in sliding fit with the sliding rail.

[0011] Preferably, the gap adjusting assembly further comprises an adjusting rod, the adjusting rod is in sliding fit on the side of the sliding block away from the suction plate, and one end of the adjusting rod is in contact with and interacts with the auxiliary roller shaft, and the auxiliary roller moves with the adjusting rod.

[0012] Preferably, the auxiliary roller shaft end is in square cross section, and the auxiliary roller is in rotary connection with the auxiliary roller shaft.

[0013] Preferably, the gap adjusting assembly is connected with the suction plate through a connecting assembly, and the connecting assembly comprises a connecting plate, and a connecting hole is formed through the connecting plate.

[0014] Preferably, the connecting plate protrudes from the gap adjusting assembly, the connecting hole is provided in plurality, and is arranged in parallel along the length direction of the connecting plate.

[0015] Preferably, the connecting assembly further comprises a limiting block, the connecting plate protrudes from the suction plate, and the limiting block is arranged on the protruding end of the connecting plate and is in abutment with the side wall of the suction plate.

[0016] Preferably, the side wall of the connecting plate is provided with a positioning groove for limiting the limiting block, the limiting block protrudes from the side wall of the suction plate away from the connecting plate, and the protruding end of the limiting block is provided with an auxiliary plate, and the auxiliary plate is in abutment with the upper surface of the suction plate.

[0017] In the second aspect, the application provides a pole piece unloading device,

[0018] The pole piece unloading device comprises a pole piece storage box and a pole piece unloading auxiliary device, the pole piece storage box is arranged on the side of the auxiliary roller away from the suction plate, a plurality of sliding holes are formed on the suction plate, the conveying belt is provided in plurality, and the plurality of conveying belts are arranged in dislocation with the sliding holes, and a push plate for transferring the pole piece to the pole piece storage box is arranged in sliding fit in the sliding hole.

[0019] Compared with the prior art, the pole piece unloading device has the following beneficial effects:

[0020] By setting the first suction hole on the suction plate, the conveying belt is subjected to suction through the first suction hole, and the pole piece is subjected to suction through the second suction hole, so that the pole piece is attached to the conveying belt and moves with the conveying belt; when the pole piece moves to the position of the auxiliary roller, the auxiliary roller applies a force to the belt that is away from the plane of the suction plate, thereby reducing the occurrence of the belt separating from the suction plate, and further reducing the case of the pole piece being sucked into the gap or forming a bulge, effectively improving the uniformity of the suction force acting on the pole piece, and ensuring the quality of the discharged pole piece.

[0021] The gap adjusting assembly adjusts the distance between the auxiliary roller and the conveying belt, which facilitates the transmission of pole pieces of different thickness specifications and applies appropriate force to ensure the normal use of the auxiliary roller and improve the practicality of the device. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of a pole piece discharging auxiliary device in Embodiment 1 of the present application;

[0023] Figure 2 is a schematic diagram of another view of a pole piece discharging auxiliary device in Embodiment 1 of the present application;

[0024] Figure 3 is a sectional view of a pole piece discharging auxiliary device in Embodiment 1 of the present application;

[0025] Figure 4 is Figure 3 is an enlarged view of part A in Figure 5;

[0026] Figure 5 is a schematic diagram of a pole piece discharging device in Embodiment 1 of the present application;

[0027] Figure 6 is a schematic diagram of a pole piece discharging device in Embodiment 1 of the present application;

[0028] Figure 7 is a schematic diagram of a push plate in Embodiment 1 of the present application.

[0029] In the figure: 1, suction plate; 101, sliding hole; 102, first suction hole; 103, discharging position; 2, conveying belt; 201, second suction hole; 3, auxiliary roller; 301, auxiliary roller shaft; 4, gap adjusting assembly; 401, sliding block; 402, sliding rail; 403, adjusting rod; 5, connecting assembly; 501, connecting plate; 502, connecting hole; 503, positioning groove; 504, limiting block; 505, auxiliary plate; 6, support frame; 7, support roller; 8, communication channel; 9, push plate; 10, pole piece storage box. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in combination with the drawings in the embodiments of the utility model, the following embodiments are used to illustrate the utility model, but not to limit the scope of the utility model.

[0031] In the description of the utility model, it needs to be explained that the orientation or position relation indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer" and the like is the orientation or position relation based on the orientation or position relation shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and is not to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0032] In the description of the utility model, it needs to be explained that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0033] The specific embodiments of the utility model will be described in further detail below in combination with the drawings.

[0034] Embodiment 1

[0035] A kind of pole piece blanking auxiliary device, refer to Figure 1 And Figure 2 Including the adsorption function of suction plate 1, rotating ring around the conveying belt 2 of suction plate 1, the auxiliary roller 3 of connecting setting in the bottom of suction plate 1, the gap adjusting assembly 4 for adjusting the relative position of auxiliary roller 3 and suction plate 1, and the connecting assembly 5 connecting gap adjusting assembly 4 and suction plate 1;Wherein, the blanking position 103 is formed in the bottom of suction plate 1, and the auxiliary roller 3 is set to the side close to the conveying start end of blanking position 103.Pole piece blanking, staff needs first according to pole piece thickness specification to adjust gap adjusting assembly 4;The standard for determining the gap is that when the pole piece and the conveying belt 2 pass through the gap between the auxiliary roller 3 and the suction plate 1, the auxiliary roller 3 is adhered between the pole piece, the pole piece and the conveying belt 2, the conveying belt 2 and the suction plate 1, and the resultant force of the pole piece in the vertical direction is zero;In other embodiments, the standard for determining the gap can also be adjusted according to the actual preparation process.

[0036] In the embodiment of the present application, the auxiliary roller 3 is connected with the suction plate 1 through the gap adjusting assembly 4 and the connecting assembly 5 at both ends. In other embodiments, driving cylinders can also be arranged on both sides of the suction plate 1, and the driving ends of the driving cylinders are connected with the auxiliary roller 3, so as to directly drive the movement of the auxiliary roller 3 through the driving cylinders.

[0037] With reference to Figures 1-3 , a plurality of sliding holes 101 are formed in the suction plate 1 in the vertical direction, the conveying belt 2 is composed of a plurality of annular belts which are spaced apart, and the annular belts are arranged in a staggered manner with the sliding holes 101. The support frame 6 is arranged at the top of the suction plate 1 in a spaced apart manner, and the support roller 7 is arranged on the side of the support frame 6 away from the suction plate 1. The conveying belt 2 located at the top of the suction plate 1 abuts against the support roller 7, so that the conveying belt 2 is taut, and at the same time, a gap is formed between the conveying belt 2 located at the top of the suction plate 1 and the top of the suction plate 1, which is convenient for the installation and use of other devices. At this time, the conveying belt 2 located at the bottom of the suction plate 1 abuts tightly against the bottom of the suction plate 1.

[0038] With reference to Figures 1-4 , the inside of the suction plate 1 is arranged as a hollow cavity, and the top of the suction plate 1 is provided with a communication passage 8. The hollow cavity is communicated with a negative pressure fan (not shown in the figure) through the communication passage 8. The bottom wall of the suction plate 1 is provided with a first suction hole 102. By starting the negative pressure fan, an action force can be generated on the articles located at the bottom of the suction plate 1 by the suction plate 1 towards the suction plate 1. In order to ensure the adsorption force on the pole piece, the second suction hole 201 is formed on the conveying belt 2. In actual use, according to the size and specification of the actual transferred material, the first suction hole 102 and the second suction hole 201 are correspondingly matched and arranged. The shape, size, arrangement position and arrangement density of the first suction hole 102 and the second suction hole 201 can be adjusted accordingly according to the actual situation. During the die cutting process, the pole piece is transferred to the bottom of the suction plate 1. The pole piece at the bottom of the suction plate 1 is adsorbed on the side of the conveying belt 2 away from the suction plate 1 under the action of the negative pressure fan, and is transferred with the conveying belt 2.

[0039] With reference to Figure 1 and Figure 2 , in order to fully play the role of the auxiliary roller 3, the auxiliary roller 3 is arranged as a plurality of auxiliary rollers. In the embodiment of the present application, the auxiliary roller 3 is rotatably connected with the auxiliary roller shaft 301. The length of the auxiliary roller shaft 301 is the same as the length of the suction plate 1, and the two ends of the auxiliary roller 3 are connected with the gap adjusting assembly 4. The gap adjusting assembly 4 comprises a sliding block 401, and the side of the sliding block 401 facing the auxiliary roller 3 is provided with a sliding rail 402. The end of the auxiliary roller shaft 301 is slidably connected with the sliding rail 402.

[0040] In the embodiment of the present application, with reference to Figure 5The hole is a long strip and is arranged perpendicularly to the side wall of the suction plate 1 provided with the first suction hole 102. The end of the auxiliary roller shaft 301 extends into the hole and is arranged to slide along the hole. In this process, the long strip hole acts as the sliding rail 402. In other embodiments, the strip rail can be arranged on the side wall of the sliding block 401 as the sliding rail 402 according to the actual use. In order to reduce the influence of external equipment on the sliding process and ensure the smooth adjustment process, the depth of the hole can be less than the thickness of the sliding block 401. In this state, the sliding block 401 covers the end of the auxiliary roller 3, reducing the possibility of foreign matter entering the sliding rail 402 and affecting the adjustment process.

[0041] With reference to Figure 5 In the embodiment, the sliding block 401 is arranged on the side wall at the bottom of the hole and is threadedly connected with the adjusting rod 403. One end of the adjusting rod 403 extending into the hole is in abutment with the auxiliary roller shaft 301. In order to ensure the adjusting effect of the adjusting rod 403 on the auxiliary roller shaft 301, the cross section of the ends of the auxiliary roller shaft 301 is square. When the adjusting rod 403 is rotated, the adjusting rod 403 moves relative to the side wall of the sliding block 401. In the moving process, the auxiliary roller shaft 301 drives the auxiliary roller 3 to move, which is convenient and fast. Similarly, in other embodiments, the side of the sliding block 401 away from the suction plate 1 can also be provided with a driving cylinder, and the driving end of the driving cylinder acts as the adjusting rod 403, penetrates through the side wall of the sliding block 401 and is in abutment with the auxiliary roller shaft 301.

[0042] With reference to Figure 3 and Figure 5 The side walls on both sides of the suction plate 1 are further connected with the connecting assembly 5. The connecting assembly 5 includes the connecting plate 501 connected to the bottom of the suction plate 1. The connecting plate 501 is provided with the connecting hole 502. In the embodiment, the connecting plate 501 can cover the sliding block 401 and protrude from the side wall of the sliding block 401 in at least two directions. The covering part and the protruding end of the connecting plate 501 are both provided with the connecting hole 502. Through the connection between the connecting plate 501 protruding from the sliding block 401 and the suction plate 1, the connection strength between the auxiliary roller 3 and the suction plate 1 can be further improved.

[0043] In other embodiments, according to the actual use of the auxiliary roller 3, the size of the connecting plate 501 can also be set to the same size as the sliding block 401, or the connecting plate 501 can be arranged to cover and protrude from the side wall of the sliding block 401, but not from the side wall of the suction plate 1, and the protruding end and the covered part are both provided with connecting holes 502, and the sliding block 401, the connecting plate 501 and the suction plate 1 are connected through bolts and the connecting holes 502. Since the connecting holes 502 are also provided in the protruding end, the connection strength between the protruding end and the suction plate 1 can be further reinforced, and the stability of the auxiliary roller 3 can be improved.

[0044] With reference to Figure 3 and Figure 4 In the embodiment of the present application, after the connecting plate 501 is connected with the suction plate 1, the connecting plate 501 is arranged to protrude from the side wall of the suction plate 1, and a positioning groove 503 is formed on the side of the connecting plate 501 facing the suction plate 1. The positioning groove 503 is formed at one end of the connecting plate 501 protruding from the suction plate 1, and a limiting block 504 is connected in the positioning groove 503. After the limiting block 504 is connected to the connecting plate 501, the side wall of the limiting block 504 abuts against the side wall of the positioning groove 503 and the side wall of the suction plate 1. During installation, the limiting block 504 can be first connected with the connecting plate 501, and then the formed angle can be matched with the edge of the suction plate 1, so as to facilitate the positioning and installation of the connecting assembly 5.

[0045] With reference to Figure 5 The side wall of the auxiliary plate 505 abuts against the top of the suction plate 1 after the connecting plate 501 is connected to the bottom of the suction plate 1, which further improves the connection stability of the connecting plate 501 and the stability of the device. When the position of the supporting roller 7 corresponds to the position of the auxiliary plate 505, the supporting frame 6, the auxiliary plate 505 and the suction plate 1 can be connected through bolts. At this time, the gravity of the supporting frame 6 and the supporting roller 7 acts on the auxiliary plate 505, which further reinforces the connection.

[0046] The principle of the embodiment 1 of the present application is that the auxiliary roller 3 is installed at the bottom of the suction plate 1 through the connecting assembly 5, and the auxiliary roller 3 applies force to the conveying belt 2 and the pole piece with a gap between them, so that the two sides of the conveying belt 2 are respectively attached to the conveying belt 2 and the pole piece, thereby reducing the uneven distribution of the pole piece adsorption force and improving the adsorption effect of the pole piece.

[0047] Application example 1

[0048] A pole piece blanking device, with reference to Figure 6 and Figure 7, including the pole piece blanking auxiliary device in embodiment 1, the push plate 9 and the pole piece storage box 10;Wherein, the pole piece storage box 10 is arranged in the blanking position 103, the push plate 9 is vertically slidingly arranged in the sliding hole 101, and the side of the push plate 9 towards the pole piece storage box 10 is higher or lower than the bottom wall of the suction plate 1 during sliding.In actual use, the staff can install the push plate 9 and the driving member for driving the push plate 9 through the frame (not shown in the figure), the push plate 9 and the pole piece storage box 10 are one-to-one corresponding, and multiple groups are set according to the blanking position 103;Multiple auxiliary rollers 3 are arranged on one side of each group of push plates 9 close to the initial end of the conveying, during conveying, the pole piece first passes through the gap between the auxiliary roller 3 and the conveying belt 2, and is evenly and flatly adsorbed on the bottom of the suction plate 1 under the action of the auxiliary roller 3, and then is transferred to the position of the push plate 9 with the conveying belt 2, and is transferred to the pole piece storage box 10 through the push plate 9, thereby effectively reducing the occurrence of wrinkles and improving the quality of the pole piece.

[0049] The above only is the preferred embodiment of the utility model, and does not limit the utility model in any form, although the utility model has disclosed as above with the preferred embodiment, however, is not used to limit the utility model, any skilled person in the art can make some changes or modifications for equivalent embodiments of equivalent change within the scope of the technical scheme of the utility model by using the above prompted technical content, the implementation scheme in the above embodiment can be further combined or replaced, as long as it does not deviate from the content of the technical scheme of the utility model, any simple modification, equivalent change and modification of the above embodiment according to the technical essence of the utility model still belongs to the scope of the utility model scheme.

Claims

1. A pole piece blanking auxiliary device characterized by, The utility model provides a kind of auxiliary device for polar plate blanking, including the suction plate (1) with negative pressure suction function and conveying belt (2), the first suction hole (102) is opened in the one side wall of the suction plate (1), the second suction hole (201) is opened in the conveying belt (2), the first suction hole (102) and the second suction hole (201) form the suction channel for adsorbing pole piece, the one side of the suction plate (1) is further provided with auxiliary roller (3), the auxiliary roller (3) is used to make pole piece, conveying belt (2) and suction plate (1) are stacked and abut.

2. The pole piece blanking aid of claim 1, wherein, The both sides of the auxiliary roller (3) are further connected with gap adjusting assembly (4), the gap adjusting assembly (4) is used to adjust the interval between auxiliary roller (3) and conveying belt (2), and the gap adjusting assembly (4) is connected with suction plate (1).

3. The pole piece blanking aid of claim 2, wherein, The gap adjusting assembly (4) includes sliding block (401), the one side of the sliding block (401) is formed with sliding rail (402) towards auxiliary roller (3), and the auxiliary roller shaft (301) of the auxiliary roller (3) is slidably connected with the sliding rail (402).

4. The pole piece blanking aid of claim 3, wherein, The gap adjusting assembly (4) further includes adjusting rod (403), the adjusting rod (403) is slidably arranged on the side of the sliding block (401) away from the suction plate (1), and the one end of the adjusting rod (403) is in contact with the auxiliary roller shaft (301) and interacts with the auxiliary roller shaft (301), and the auxiliary roller (3) moves with the adjusting rod (403).

5. The pole piece blanking aid of claim 3 or 4, wherein, The end of the auxiliary roller shaft (301) is square in cross section, and the auxiliary roller (3) is rotatably connected with the auxiliary roller shaft (301).

6. The pole piece blanking aid of claim 2, wherein, The gap adjusting assembly (4) is connected with the suction plate (1) through the connecting assembly (5), and the connecting assembly (5) includes a connecting plate (501) with a connecting hole (502) penetratingly arranged thereon.

7. The pole piece blanking aid of claim 6, wherein, The connecting plate (501) protrudes from the gap adjusting assembly (4), and the connecting hole (502) is provided in plurality.

8. The pole piece blanking aid of any one of claims 6 or 7, wherein, The connecting assembly (5) further includes a limiting block (504), the connecting plate (501) protrudes from the suction plate (1), and the limiting block (504) is arranged on the protruding end of the connecting plate (501) and abuts against the side wall of the suction plate (1).

9. The pole piece blanking aid of claim 8, wherein, The side wall of the connecting plate (501) is provided with a positioning groove (503) for limiting the limiting block (504), the limiting block (504) protrudes from the side wall of the suction plate (1) away from the connecting plate (501), and the protruding end of the limiting block (504) is provided with an auxiliary plate (505) abutting against the upper surface of the suction plate (1).

10. A pole piece blanking device characterized by, The utility model provides a kind of auxiliary device for polar plate blanking, including the suction plate (1) with negative pressure suction function and conveying belt (2), the first suction hole (102) is opened in the one side wall of the suction plate (1), the second suction hole (201) is opened in the conveying belt (2), the first suction hole (102) and the second suction hole (201) form the suction channel for adsorbing pole piece, the one side of the suction plate (1) is further provided with auxiliary roller (3), the auxiliary roller (3) is used to make pole piece, conveying belt (2) and suction plate (1) are stacked and abut.