Punching equipment for current collector

Abstract

The utility model relates to the technical field of current collector processing equipment, in particular to punching equipment for a current collector. The drilling equipment for the current collector comprises an unwinding mechanism, a machine table, a laser drilling mechanism, a winding mechanism, a transverse moving assembly and a longitudinal moving assembly, and the unwinding mechanism and the winding mechanism are located on the two opposite sides of the machine table in the first direction correspondingly. The transverse moving assembly is in transmission connection with the laser drilling mechanism so as to drive the laser drilling mechanism to move in the first direction, the longitudinal moving assembly is arranged on the machine table and is in transmission connection with the transverse moving assembly so as to drive the laser drilling mechanism to move in the second direction through the transverse moving assembly, and the first direction is parallel to the feeding direction of the current collector. The second direction is perpendicular to the first direction. The laser drilling mechanism can move in the first direction and the second direction, position adjustment of the laser drilling mechanism in the two directions is achieved, the laser drilling mechanism can conveniently conduct drilling operation at different positions on the current collector, and the drilling efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of current collector processing equipment, and in particular to a current collector drilling device. Background Technology

[0002] Insufficient surface roughness of the current collector in a battery leads to problems such as low peel strength, inadequate wettability in the electrolyte, and short battery cycle life. Therefore, perforation is typically performed on the current collector to increase its surface roughness.

[0003] Currently, the main method for drilling current collectors is laser drilling. In existing laser drilling mechanisms, the laser emitter is fixed directly above the drilling area of ​​the machine to emit a laser beam onto the current collector on the upper surface of the drilling area, thereby realizing the drilling operation. The fixed position or unidirectional movement of the existing laser emitter leads to frequent adjustments to the position of the current collector or the laser emitter during the drilling process, reducing the drilling efficiency of the current collector. Utility Model Content

[0004] The purpose of this invention is to provide a punching device for a current collector, so as to realize the position adjustment of the laser punching mechanism in two directions and improve the punching efficiency.

[0005] To achieve this objective, the technical solution adopted by this utility model is as follows:

[0006] A punching device for a current collector includes an unwinding mechanism, a machine base, a laser punching mechanism, and a winding mechanism, wherein the unwinding mechanism and the winding mechanism are located on opposite sides of the machine base along a first direction.

[0007] The punching device for the current collector further includes a lateral moving component and a longitudinal moving component. The lateral moving component is drivenly connected to the laser punching mechanism to drive the laser punching mechanism to move along the first direction. The longitudinal moving component is disposed on the machine base and drivenly connected to the lateral moving component to drive the laser punching mechanism to move along the second direction. The first direction is parallel to the feeding direction of the current collector, and the second direction is perpendicular to the first direction.

[0008] As an optional solution, the lateral movement component includes a lateral drive, a lateral guide rail, and a lateral slider. The laser drilling mechanism is disposed on the lateral slider. The lateral guide rail extends along the first direction, and the lateral drive drives the lateral slider to slide along the lateral guide rail.

[0009] The longitudinal movement component includes a longitudinal drive, a longitudinal guide rail, and a longitudinal slider. The transverse guide rail is connected to the longitudinal slider. The longitudinal guide rail extends along the second direction. The longitudinal drive drives the longitudinal slider to slide along the longitudinal guide rail.

[0010] As an optional solution, two longitudinal moving components are provided, with the two longitudinal guide rails spaced apart along the first direction, and the two ends of the transverse guide rail along the first direction respectively connected to the two longitudinal sliders.

[0011] As an optional feature, the upper surface of the machine tool has a perforated area;

[0012] The machine is equipped with an adsorption mechanism located below the perforation area and capable of adsorbing the current collector onto the upper surface of the perforation area.

[0013] As an optional solution, a base is provided on both sides of the punching area along the first direction, and a guide hole is provided through the base; the current collector unwound by the unwinding mechanism enters the punching area through the guide hole of one of the bases, and the current collector after punching is moved out of the punching area through the guide hole of the other base.

[0014] As an optional solution, the machine tool is provided with a waste bin located below the punching area, and the punching area has a leakage hole that communicates with the waste bin.

[0015] As an optional solution, the punching device for the current collector also includes a traction mechanism, which is located at one end of the unwinding mechanism near the machine platform. The traction mechanism is used to transport the unwound current collector to the machine platform.

[0016] As an optional solution, the unwinding mechanism includes:

[0017] An unwinding table is disposed on one side of the machine platform along the first direction, and the distance between the unwinding table and the machine platform is adjustable;

[0018] An unwinding drive unit is disposed on the unwinding table;

[0019] The unwinding shaft is rotatably mounted on the unwinding table, and the current collector is wound on the unwinding shaft. The unwinding drive drives the unwinding shaft to rotate relative to the unwinding table to unwind the current collector.

[0020] As an optional solution, the unwinding table is also rotatably mounted with an unwinding guide roller and a support roller, with the support roller located below the unwinding guide roller; the unwound current collector is selectively wound around the unwinding guide roller or the support roller and then conveyed to the machine.

[0021] As an optional solution, the winding mechanism includes:

[0022] A take-up table is disposed on the other side of the machine table along the first direction, and the distance between the take-up table and the machine table is adjustable;

[0023] A winding drive unit is disposed on the winding table;

[0024] A take-up shaft is rotatably mounted on a take-up table. The take-up drive drives the take-up shaft to rotate relative to the take-up table to take up the punched current collector.

[0025] The beneficial effects of this utility model are as follows:

[0026] The present invention proposes a drilling device for a current collector. The laser drilling mechanism is driven to move along a first direction by a transverse moving component and to move along a second direction by a longitudinal moving component. The second direction is perpendicular to the first direction, which enables the laser drilling mechanism to move along the first and second directions on the machine platform. This allows the laser drilling mechanism to be adjusted in two directions, making it easier for the laser drilling mechanism to perform drilling operations at different positions on the current collector and improving drilling efficiency. Attached Figure Description

[0027] Figure 1 This is a front view of the punching device for collecting fluid provided in this embodiment of the utility model;

[0028] Figure 2 This is a schematic diagram of the structure of the punching device for the current collector provided in this embodiment of the utility model.

[0029] The component names and labels in the diagram are as follows:

[0030] 1. Unwinding mechanism; 11. Unwinding table; 12. Unwinding shaft; 13. Unwinding guide roller; 14. Idler roller; 15. Guide frame; 2. Machine base; 20. Drilling area; 21. Machine cover; 3. Laser drilling mechanism; 31. Laser emitter; 32. Galvanometer; 4. Rewinding mechanism; 41. Rewinding table; 42. Rewinding shaft; 43. Rewinding guide roller; 5. Lateral movement assembly; 51. Lateral guide rail; 52. Lateral slider; 6. Longitudinal movement assembly; 61. Longitudinal guide rail; 7. Base; 8. Traction mechanism. Detailed Implementation

[0031] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0035] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] like Figure 1 and Figure 2As shown in the figure, this embodiment proposes a punching device for a current collector. The punching device includes an unwinding mechanism 1, a machine base 2, a laser punching mechanism 3, and a winding mechanism 4. The unwinding mechanism 1 and the winding mechanism 4 are located on opposite sides of the machine base 2 along a first direction (left-right direction in the figure). Specifically, the unwinding mechanism 1 is located on the left side of the machine base 2, and the winding mechanism 4 is located on the right side of the machine base 2. The reel of the current collector to be punched is installed on the unwinding mechanism 1, which is used to feed the current collector to the machine base 2. The laser punching mechanism 3 is used to complete the punching operation of the current collector on the machine base 2. The punched current collector is then fed to the winding mechanism 4 for winding. A cover 21 is provided on the machine base 2, which covers the laser punching mechanism 3 to ensure that the laser punching mechanism 3 is in a closed environment and to avoid interference from the external environment during punching. The first direction is parallel to the feeding direction of the current collector, and the current collector is fed from left to right along the first direction.

[0037] Existing laser emitters have fixed positions or only one direction of movement, which requires frequent adjustments to the position of the current collector or the laser emitter during the drilling process, reducing the drilling efficiency of the current collector.

[0038] To solve the above problems, such as Figure 1 and Figure 2 As shown, the drilling equipment for the current collector also includes a transverse moving component 5 and a longitudinal moving component 6. The transverse moving component 5 is connected to the laser drilling mechanism 3 to drive the laser drilling mechanism 3 to move along a first direction. The longitudinal moving component 6 is mounted on the machine base 2 and is connected to the transverse moving component 5 to drive the laser drilling mechanism 3 to move along a second direction (the front-back direction in the figure). The first direction is parallel to the feeding direction of the current collector, and the second direction is perpendicular to the first direction and parallel to the width direction of the current collector. By driving the laser drilling mechanism 3 to move along the first direction through the transverse moving component 5 and driving the laser drilling mechanism 3 to move along the second direction through the longitudinal moving component 6, and the second direction is perpendicular to the first direction, the laser drilling mechanism 3 can move along the first and second directions on the machine base 2. This allows for position adjustment of the laser drilling mechanism 3 in two directions, facilitating drilling operations at different positions on the current collector and improving drilling efficiency.

[0039] like Figure 1 and Figure 2As shown, the unwinding mechanism 1 includes an unwinding platform 11, an unwinding drive, and an unwinding shaft 12. The unwinding platform 11 is located on one side of the machine base 2 along a first direction, and the distance between the unwinding platform 11 and the machine base 2 is adjustable. The unwinding drive is located on the unwinding platform 11. The unwinding platform 11 is rotatably equipped with one or two unwinding shafts 12. The current collector is wound onto the unwinding shaft 12, and the unwinding drive drives the unwinding shaft 12 to rotate relative to the unwinding platform 11 to unwind the current collector. Specifically, the unwinding platform 11 is arranged independently from the machine base 2. The bottom of the unwinding machine base 2 is equipped with casters to move in the left and right directions, thereby flexibly adjusting the distance between the unwinding platform 11 and the machine base 2 according to the unwinding conditions of the current collector. Two unwinding shafts 12 are installed on the machine base 2, and the current collector winding can be fitted onto one of the unwinding shafts 12, allowing the laser drilling mechanism 3 to complete the drilling of a single layer of current collector. Another unwinding shaft 12 can be used as a spare shaft or another current collector reel can be mounted on another unwinding shaft 12, so that the unwinding mechanism 1 can simultaneously unwind and feed two layers of current collectors, and the laser drilling mechanism 3 can complete the drilling of the double-layer current collector, further improving the drilling efficiency.

[0040] Specifically, in this embodiment, the unwinding shaft 12 is an air-expanding shaft. The expansion and contraction of the air-expanding shaft are controlled by inflation and deflation, thereby clamping and releasing the current collector reel for easy unloading. The air source for the air-expanding shaft is installed inside the unwinding table 11. Since the structure and working principle of the air-expanding shaft are existing technologies, they will not be described in detail here. Simultaneously, a magnetic powder tensioner is also installed inside the unwinding table 11. The unwinding drive unit controls the rotational speed of the unwinding shaft 12 through the magnetic powder tensioner to adjust the unwinding rate of the current collector. In this embodiment, the unwinding drive unit is a rotary motor or other drive component, as long as it can control the rotation of the unwinding shaft 12.

[0041] Furthermore, the unwinding platform 11 is also rotatably equipped with an unwinding guide roller 13 and an idler roller 14, with the idler roller 14 located below the unwinding guide roller 13. The unwound current collector is selectively wound around the unwinding guide roller 13 or the idler roller 14 before being conveyed to the machine base 2. By setting the unwinding guide roller 13 and the idler roller 14, the unwound current collector is tensioned and flattened, preventing wrinkles or loosening during feeding and achieving stable feeding. When the unwinding shaft 12 unwinds, the current collector can flexibly choose to be wound around the unwinding guide roller 13 or the idler roller 14 according to the unwinding requirements, thus achieving flexible feeding of the current collector.

[0042] It should be noted that the unwinding table 11 is also equipped with a guide frame 15. After unwinding, the current collector is wound around the unwinding guide roller 14 and continues to pass through the guide frame 15. Under the guidance of the guide frame 15, it is stably transported to the machine table 2.

[0043] like Figure 1 and Figure 2As shown, the punching device for the current collector also includes a traction mechanism 8, which is located at one end of the unwinding mechanism 1 near the machine base 2. The traction mechanism 8 is used to transport the unwound current collector onto the machine base 2. By setting the traction mechanism 8, feeding power is applied to the current collector, thereby driving the unwound current collector to move from left to right towards the machine base 2.

[0044] Specifically, the traction mechanism 8 includes a traction frame, a traction drive, a traction roller, and a pressure roller. The traction frame is located at one end of the unwinding mechanism 1 near the machine base 2. The traction drive is mounted on the traction frame. The traction roller and the pressure roller are vertically aligned (vertically in the figure) and rotatably mounted on the traction frame in a second direction. The traction drive drives the traction roller to rotate, thereby conveying the current collector to the machine base 2. After unwinding, the current collector passes through the gap between the traction roller and the pressure roller. The traction drive drives the traction roller to rotate, and the roller surface of the pressure roller presses against the roller surface of the traction roller, causing the traction roller and the pressure roller to rotate in opposite directions and conveying the current collector to the machine base 2. The traction drive can be a rotary motor or other drive component, as long as it can control the rotation of the traction roller.

[0045] It should be noted that the traction mechanism 8 also has a tension isolation function. The upper surface of the machine base 2 has a perforation area 20. When the current collector is spread across the upper surface of the perforation area 20 under the drive of the traction mechanism 8, the traction drive stops, and the current collector stops feeding. After the laser perforation mechanism 3 completes the perforation of the current collector located in the perforation area 20, the traction drive restarts and drives the current collector to be perforated to move to the perforation area 20. The perforated current collector then moves synchronously to the winding mechanism 4 for winding. By repeatedly starting and stopping the traction drive, the current collector on the unwinding shaft 12 is perforated segment by segment.

[0046] In this embodiment, an adsorption mechanism is provided inside the machine base 2. The adsorption mechanism is located below the perforation area 20 and can adsorb the current collector onto the upper surface of the perforation area 20. Through the adsorption action of the adsorption mechanism, the current collector is evenly laid on the upper surface of the perforation area 20, realizing the positioning and flattening of the current collector to ensure the perforation quality. Specifically, the adsorption mechanism can be a vacuum adsorption mechanism or an electrostatic adsorption mechanism, etc., to achieve the adsorption and positioning of the current collector through vacuum adsorption or electrostatic adsorption. Since vacuum adsorption mechanisms and electrostatic adsorption mechanisms are existing technologies, the specific structure and adsorption process of vacuum adsorption mechanisms and electrostatic adsorption mechanisms will not be described in detail.

[0047] like Figure 2As shown, bases 7 are provided on both sides of the punching area 20 along the first direction, and guide holes are provided through the bases 7. The current collector unwound by the unwinding mechanism 1 enters the punching area 20 through the guide hole of one base 7, and the punched current collector moves out of the punching area 20 through the guide hole of the other base 7. The guide holes of the bases 7 have a guiding and correcting function, preventing the current collector from shifting position in the front-back direction, improving the positioning accuracy of the current collector in the punching area 20, and thus improving the positional accuracy of the punching on the current collector.

[0048] like Figure 2 As shown, the lateral movement component 5 includes a lateral drive, a lateral guide rail 51, and a lateral slider 52. The laser drilling mechanism 3 is mounted on the lateral slider 52. The lateral guide rail 51 extends along a first direction, and the lateral drive drives the lateral slider 52 to slide along the lateral guide rail 51. The longitudinal movement component 6 includes a longitudinal drive, a longitudinal guide rail 61, and a longitudinal slider. The lateral guide rail 51 is connected to the longitudinal slider, and the longitudinal guide rail 61 extends along a second direction. The longitudinal drive drives the longitudinal slider to slide along the longitudinal guide rail 61. Both the lateral movement component 5 and the longitudinal movement component 6 are KK modules, which simplifies the structure of the two moving components and facilitates installation and maintenance. The aforementioned lateral drive and longitudinal drive can be servo motors to improve the displacement accuracy of the laser drilling mechanism 3.

[0049] It should be noted that the laser drilling mechanism 3 in this embodiment includes laser components such as a laser emitter 31 and a galvanometer 32. The laser beam emitted by the laser emitter 31 is irradiated onto the current collector of the drilling area 20 through the galvanometer 32 to achieve laser drilling. Since the laser drilling mechanism 3 is existing technology, its structure and drilling process will not be described in detail. It should be noted that both the laser emitter 31 and the galvanometer 32 are mounted on the horizontal slider 52. Figure 2 The laser emitter 31 and galvanometer 32 are separated, only to clearly show the various components on the machine tool 2.

[0050] like Figure 2 As shown, two longitudinal moving components 6 are provided. Two longitudinal guide rails 61 are spaced apart along the first direction, and the two ends of the transverse guide rail 51 along the first direction are respectively connected to the two longitudinal sliders. The two longitudinal guide rails 61 are located on the left and right sides of the drilling area 20, respectively. The two longitudinal sliders jointly drive the transverse guide rail 51 to move in the front-back direction, so as to improve the movement accuracy and stability of the longitudinal guide rail 61 in the front-back direction, avoid the longitudinal guide rail 61 from deflecting, and thus improve the displacement accuracy of the laser drilling mechanism 3.

[0051] It should be noted that a waste bin (not shown in the figure) is located below the drilling area 20 within the machine 2. The drilling area 20 has a discharge hole communicating with the waste bin. Waste material falling from the collector after drilling in the drilling area 20 falls into the waste bin through the discharge hole, ensuring the cleanliness and flatness of the upper surface of the drilling area 20 and facilitating continuous drilling operations for the collector. Alternatively, a blowing mechanism can be installed outside the waste bin, blowing air onto the upper surface of the drilling area 20 to blow the waste material into the discharge hole. Alternatively, a dust collection mechanism can be installed inside the waste bin, sucking the waste material into the distribution bin through the discharge hole.

[0052] like Figure 1 and Figure 2 As shown, the winding mechanism 4 includes a winding table 41, a winding drive, and a winding shaft 42. The winding table 41 is located on the other side of the machine base 2 along the first direction, and the distance between the winding table 41 and the machine base 2 is adjustable. The winding drive is located on the winding table 41. The winding shaft 42 is rotatably mounted on the winding table 41, and the winding drive drives the winding shaft 42 to rotate relative to the winding table 41 to wind up the perforated collector.

[0053] Specifically, the take-up table 41 is arranged independently from the machine base 2. Casters are installed at the bottom of the take-up table 41 to facilitate its left-right movement, allowing for flexible adjustment of the distance between the take-up table 41 and the machine base 2 according to the take-up conditions of the current collector. For example, a certain distance can be set between the take-up table 41 and the machine base 2, and a detection component can be installed between them to detect the perforation quality of the current collector after perforation. This detection component can be a CCD camera, which takes a picture of the current collector after perforation and analyzes the picture to detect the perforation quality. Since the CCD camera shooting and detection process is existing technology, it will not be described in detail here.

[0054] Specifically, in this embodiment, the take-up shaft 42 is an air-expanding shaft. The expansion and contraction of the air-expanding shaft are controlled by inflation and deflation, thereby clamping and releasing the current collector reel for easy unloading. The air source for the air-expanding shaft is installed inside the take-up table 41. Simultaneously, a magnetic powder tensioner is also installed inside the take-up table 41. The take-up drive unit controls the rotational speed of the take-up shaft 42 through the magnetic powder tensioner to control the current collector's take-up rate. In this embodiment, the take-up drive unit can be a rotary motor or other drive component, as long as it can control the rotation of the take-up shaft 42.

[0055] Furthermore, the winding platform 41 is rotatably mounted with two winding guide rollers 43. The perforated collector is selectively wound around one or two winding guide rollers 43 and then wound onto the winding shaft 42 to form a collector reel. By setting the winding guide rollers 43, the perforated collector is tensioned and flattened, avoiding wrinkles or loosening during the winding process, thus achieving stable winding of the collector.

[0056] The above embodiments merely illustrate the basic principles and characteristics of this utility model. This utility model is not limited to the above embodiments. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A punching apparatus of a current collector, characterized by, Including unwinding mechanism (1), machine table (2), laser punching mechanism (3) and winding mechanism (4), the unwinding mechanism (1) and the winding mechanism (4) are located at the opposite sides of the machine table (2) along the first direction respectively; The punching equipment of the current collector further includes a transverse moving assembly (5) and a longitudinal moving assembly (6), the transverse moving assembly (5) is in transmission connection with the laser punching mechanism (3) to drive the laser punching mechanism (3) to move along the first direction, the longitudinal moving assembly (6) is arranged on the machine table (2) and is in transmission connection with the transverse moving assembly (5) to drive the laser punching mechanism (3) to move along the second direction through the transverse moving assembly (5), the first direction is parallel to the feeding direction of the current collector, and the second direction is perpendicular to the first direction.

2. The current collector perforating apparatus of claim 1, wherein The transverse moving assembly (5) includes a transverse driving member, a transverse guide rail (51) and a transverse sliding block (52), the laser punching mechanism (3) is arranged on the transverse sliding block (52), the transverse guide rail (51) extends along the first direction, and the transverse driving member drives the transverse sliding block (52) to slide along the transverse guide rail (51). The longitudinal moving assembly (6) includes a longitudinal driving member, a longitudinal guide rail (61) and a longitudinal sliding block, the transverse guide rail (51) is connected with the longitudinal sliding block, the longitudinal guide rail (61) extends along the second direction, and the longitudinal driving member drives the longitudinal sliding block to slide along the longitudinal guide rail (61).

3. The current collector perforating apparatus of claim 2, wherein, The longitudinal moving assembly (6) is provided with two longitudinal guide rails (61), the two longitudinal guide rails (61) are arranged at intervals along the first direction, and the two ends of the transverse guide rail (51) along the first direction are connected with the two longitudinal sliding blocks respectively.

4. The current collector punching apparatus according to claim 1, wherein The upper surface of the machine table (2) has a punching area (20); An adsorption mechanism is arranged in the machine table (2), and the adsorption mechanism is located below the punching area (20) and can adsorb the current collector on the upper surface of the punching area (20).

5. The current collector perforating apparatus of claim 4, wherein, The two sides of the punching area (20) along the first direction are provided with bases (7), the bases (7) are provided with guide holes, the unwound current collector of the unwinding mechanism (1) enters the punching area (20) through the guide hole of one base (7), and the punched current collector moves out of the punching area (20) through the guide hole of another base (7).

6. The current collector perforating apparatus of claim 4, wherein A waste bin is arranged in the machine table (2) below the punching area (20), and the punching area (20) is provided with a leakage hole in communication with the waste bin.

7. The current collector perforating apparatus according to any one of claims 1 to 6, characterized by The punching equipment of the current collector further includes a traction mechanism (8), the traction mechanism (8) is arranged at one end of the unwinding mechanism (1) close to the machine table (2), and the traction mechanism (8) is used for conveying the unwound current collector to the machine table (2).

8. The current collector perforating apparatus according to any one of claims 1 to 6, characterized by The unwinding mechanism (1) includes: An unwinding rack (11) is arranged on one side of the machine table (2) along the first direction, and the distance between the unwinding rack (11) and the machine table (2) is adjustable; An unwinding driving member is arranged on the unwinding rack (11). A winding-off shaft (12) is rotatably arranged on the winding-off frame (11), and the current collector is wound on the winding-off shaft (12). The winding-off driving member drives the winding-off shaft (12) to rotate relative to the winding-off frame (11) to wind off the current collector.

9. The current collector perforating apparatus of claim 8, wherein, The winding-off frame (11) is further rotatably arranged with a winding-off guide roller (13) and a supporting roller (14), and the supporting roller (14) is located below the winding-off guide roller (13). The wound-off current collector is selectively conveyed to the machine table (2) through the winding-off guide roller (13) or the supporting roller (14).

10. The current collector perforating apparatus according to any one of claims 1 to 6, characterized by The winding mechanism (4) comprises: A winding frame (41) is arranged on the other side of the machine table (2) along the first direction, and the distance between the winding frame (41) and the machine table (2) is adjustable; A winding driving member is arranged on the winding frame (41); A winding shaft (42) is rotatably arranged on the winding frame (41), and the winding driving member drives the winding shaft (42) to rotate relative to the winding frame (41) to wind the punched current collector.

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