Cutting device for composite current collector

Abstract

The utility model relates to the technical field of composite current collector cutting, and discloses a composite current collector cutting device which comprises a workbench, the bottom of the workbench is fixedly connected with a supporting frame, the upper surface of the workbench is fixedly connected with a U-shaped installation frame, the inner top wall of the U-shaped installation frame is fixedly connected with an electric push rod, and the inner top wall of the electric push rod is fixedly connected with a motor. The output end of the electric push rod is fixedly connected with a cutting knife, and tensioning assemblies are arranged at the two ends of the U-shaped mounting frame. The first motor drives the transmission rod to rotate, so that the gear rotates, the gear drives the rack on the left side to move upwards, the rack on the right side moves downwards, the composite current collector is jacked up through the tightening roller on the left side, and the composite current collector is pushed downwards through the tightening roller on the right side; the composite current collector is in a tightened state before being cut, the wrinkling phenomenon during cutting is avoided, the flatness of the cut position of the composite current collector is guaranteed, and then the cutting quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of composite current collector cutting, in particular to a composite current collector cutting device. Background Art

[0002] Cutting of composite current collector refers to the process of cutting the composite current collector material into specific sizes and shapes. Composite current collector is a new type of material used in lithium batteries. It has a sandwich-like structure. The middle layer is a polymer insulating resin film (such as PET / PP), and the two sides are metal aluminum / copper layers prepared by magnetron sputtering or vacuum evaporation.

[0003] When the existing cutting device cuts the composite current collector, wrinkles easily appear during the cutting process, resulting in uneven cutting of the composite current collector, which reduces the quality of the cut composite current collector and affects subsequent use. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a cutting device for a composite current collector.

[0005] The utility model is implemented by the following technical solutions: a cutting device for a composite current collector, comprising a workbench, the bottom of the workbench is fixedly connected to a support frame, the upper surface of the workbench is fixedly connected to a U-shaped mounting frame, the inner top wall of the U-shaped mounting frame is fixedly connected to an electric push rod, the output end of the electric push rod is fixedly connected to a cutting knife, tensioning assemblies are provided at both ends of the U-shaped mounting frame, and the front end of the U-shaped mounting frame is fixedly connected to a mounting plate;

[0006] The tensioning assembly includes a first motor, the output end of the first motor is fixedly connected to a transmission rod, the surface of the transmission rod is fixedly connected to a gear, the inner wall of the gear is meshed with a rack, one end of the rack is fixedly connected to a sliding plate, the surface of the sliding plate is slidably connected to a limit plate, one end of the limit plate is fixedly connected to a connecting plate, the inner wall of the connecting plate is rotatably connected to a tensioning roller, and the surface of the transmission rod is rotatably connected to a fixed seat.

[0007] Through the above technical solution, the first motor drives the transmission rod to rotate, causing the gear to rotate, so that the gear drives the rack on the left to move upward and the rack on the right to move downward, the composite current collector is lifted up by the tensioning roller on the left, and the composite current collector is pushed downward by the tensioning roller on the right, so that the composite current collector is in a tensioned state before cutting.

[0008] As a further improvement of the above solution, the front end of the first motor is fixedly connected to the inner wall of the mounting plate, the number of the gears is set to two, and the two gears are symmetrically distributed with the transmission rod as the center, and the number of the racks is set to four, and the four racks are symmetrically distributed with the U-shaped mounting frame as the center.

[0009] Through the above technical solution, when the rack moves, it will drive the sliding plate to slide up and down on the inner wall of the limit plate, and the stability of the rack during movement is ensured by the sliding plate.

[0010] As a further improvement of the above solution, the bottom of the limiting plate is fixedly connected to the upper surface of the workbench, and the bottom of the fixing seat is fixedly connected to the top of the U-shaped mounting frame.

[0011] Through the above technical solution, the transmission rod is supported by the fixing seat, thereby ensuring the stability of the transmission rod during rotation.

[0012] As a further improvement of the above solution, the upper surface of the workbench is fixedly connected to a vertical plate, the inner wall of the vertical plate is rotatably connected to a guide roller, the left end of the workbench is fixedly connected to a fixed frame, and the inner wall of the fixed frame is rotatably connected to a reeling roller.

[0013] Through the above technical solution, two guide rollers are provided, and the composite current collector is guided by the two guide rollers.

[0014] As a further improvement of the above scheme, the right end of the workbench is fixedly connected to a fixed plate, the front end of the fixed plate is fixedly connected to a second motor, the output end of the second motor is fixedly connected to a winding roller, and the two ends of the winding roller are rotatably connected to the inner wall of the fixed plate.

[0015] Through the above technical solution, the second motor drives the winding roller to rotate, and the cut composite current collector is wound up, thereby improving convenience during use.

[0016] As a further improvement of the above solution, a through slot is provided in the middle of the workbench, and a sleeve is fixedly connected to the inner top wall of the U-shaped mounting frame.

[0017] With the above technical solution, the sliding plate and the rack can move downwards through the through slot.

[0018] As a further improvement of the above solution, the inner wall of the sleeve is slidably connected to a limit rod, and the bottom of the limit rod is fixedly connected to the top of the cutting knife.

[0019] Through the above technical solution, when the cutting knife moves downward, the limiting rod slides along the inner wall of the sleeve, which ensures that the cutting knife moves more accurately and improves the cutting quality.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] The utility model provides a tensioning assembly, specifically, a first motor drives the transmission rod to rotate, so that the gear rotates, and the gear drives the rack on the left to move upward, and the rack on the right to move downward, and the composite current collector is lifted by the tensioning roller on the left, and the composite current collector is pushed downward by the tensioning roller on the right, so that the composite current collector is in a tensioned state before cutting, avoiding wrinkles during cutting, ensuring the flatness of the cutting part of the composite current collector, and thus improving the cutting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the tensioning assembly of the utility model;

[0025] Figure 4 This is a side view of the structure of the utility model;

[0026] Figure 5 This is a structural diagram of the tensioning assembly of the utility model when in use.

[0027] Description of main symbols:

[0028] 1. Workbench; 2. Support frame; 3. U-shaped mounting frame; 4. Electric push rod; 5. Cutting knife; 6. Tensioning assembly; 601. First motor; 602. Transmission rod; 603. Gear; 604. Rack; 605. Sliding plate; 606. Limit plate; 607. Connecting plate; 608. Take-up roller; 609. Fixed seat; 7. Mounting plate; 8. Vertical plate; 9. Guide roller; 10. Fixed frame; 11. Unwinding roller; 12. Fixed plate; 13. Winding roller; 14. Second motor; 15. Through slot; 16. Sleeve; 17. Limit rod. DETAILED DESCRIPTION

[0029] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0030] Example:

[0031] Please combine Figure 1-5A composite current collector cutting device of this embodiment includes a workbench 1, a support frame 2 is fixedly connected to the bottom of the workbench 1, a U-shaped mounting frame 3 is fixedly connected to the upper surface of the workbench 1, an electric push rod 4 is fixedly connected to the inner top wall of the U-shaped mounting frame 3, a cutting knife 5 is fixedly connected to the output end of the electric push rod 4, tensioning assemblies 6 are provided at both ends of the U-shaped mounting frame 3, and a mounting plate 7 is fixedly connected to the front end of the U-shaped mounting frame 3;

[0032] The tensioning assembly 6 includes a first motor 601, the output end of the first motor 601 is fixedly connected to a transmission rod 602, the surface of the transmission rod 602 is fixedly connected to a gear 603, the inner wall of the gear 603 is meshed with a rack 604, one end of the rack 604 is fixedly connected to a sliding plate 605, the surface of the sliding plate 605 is slidably connected to a limit plate 606, one end of the limit plate 606 is fixedly connected to a connecting plate 607, the inner wall of the connecting plate 607 is rotatably connected to a tensioning roller 608, and the surface of the transmission rod 602 is rotatably connected to a fixed seat 6 09. Start the first motor 601. The first motor 601 drives the transmission rod 602 to rotate, causing the gear 603 to rotate, so that the gear 603 drives the rack 604 on the left to move upward, and the rack 604 on the right to move downward. The composite current collector is lifted up by the tensioning roller 608 on the left, and the composite current collector is pushed downward by the tensioning roller 608 on the right, so that the composite current collector is in a taut state before cutting, avoiding wrinkles during cutting, ensuring the flatness of the cutting part of the composite current collector, and thus improving the cutting quality.

[0033] The front end of the first motor 601 is fixedly connected to the inner wall of the mounting plate 7. There are two gears 603, which are symmetrically distributed around the transmission rod 602. There are four racks 604, which are symmetrically distributed around the U-shaped mounting frame 3.

[0034] The bottom of the limiting plate 606 is fixedly connected to the upper surface of the workbench 1 , and the bottom of the fixing seat 609 is fixedly connected to the top of the U-shaped mounting bracket 3 .

[0035] The upper surface of the workbench 1 is fixedly connected to a vertical plate 8, the inner wall of the vertical plate 8 is rotatably connected to a guide roller 9, the left end of the workbench 1 is fixedly connected to a fixing frame 10, and the inner wall of the fixing frame 10 is rotatably connected to a reeling roller 11.

[0036] The right end of the workbench 1 is fixedly connected to a fixed plate 12, the front end of the fixed plate 12 is fixedly connected to a second motor 14, the output end of the second motor 14 is fixedly connected to a winding roller 13, and both ends of the winding roller 13 are rotatably connected to the inner wall of the fixed plate 12.

[0037] A through slot 15 is provided in the middle of the workbench 1 , and a sleeve 16 is fixedly connected to the inner top wall of the U-shaped mounting frame 3 .

[0038] The inner wall of the sleeve 16 is slidably connected to a limit rod 17 , the bottom of the limit rod 17 is fixedly connected to the top of the cutting knife 5 , and the cutting knife 5 is pushed downward by the electric push rod 4 to cut the composite current collector.

[0039] The implementation principle of a cutting device for a composite current collector in an embodiment of the present application is as follows: when in use, the composite current collector is wound on the surface of the unwinding roller 11, the composite current collector is placed on the lower surface of the guide roller 9 on the left, and then placed on the upper surface of the tensioning roller 608 on the left, the composite current collector is placed on the lower surface of the tensioning roller 608 on the right, and then placed on the upper surface of the guide roller 9 on the right, and finally wound on the surface of the winding roller 13. When cutting, the first motor 601 is started, and the first motor 601 drives the transmission rod 602 to rotate , causing the gear 603 to rotate, causing the gear 603 to drive the rack 604 on the left to move upward, causing the rack 604 on the right to move downward, and lifting the composite current collector through the tensioning roller 608 on the left, and pushing the composite current collector downward through the tensioning roller 608 on the right, so that the composite current collector is in a taut state before cutting, avoiding wrinkles during cutting, ensuring the flatness of the cutting part of the composite current collector, and thus improving the cutting quality, starting the electric push rod 4, and the electric push rod 4 pushes the cutting knife 5 downward to cut the composite current collector.

[0040] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A cutting device for a composite current collector, characterized in that: The invention comprises a workbench (1), wherein the bottom of the workbench (1) is fixedly connected to a support frame (2), the upper surface of the workbench (1) is fixedly connected to a U-shaped mounting frame (3), the inner top wall of the U-shaped mounting frame (3) is fixedly connected to an electric push rod (4), the output end of the electric push rod (4) is fixedly connected to a cutting knife (5), tensioning assemblies (6) are provided at both ends of the U-shaped mounting frame (3), and the front end of the U-shaped mounting frame (3) is fixedly connected to a mounting plate (7); The tensioning assembly (6) comprises a first motor (601), the output end of the first motor (601) is fixedly connected to a transmission rod (602), the surface of the transmission rod (602) is fixedly connected to a gear (603), the inner wall of the gear (603) is meshed with a rack (604), one end of the rack (604) is fixedly connected to a sliding plate (605), the surface of the sliding plate (605) is slidably connected to a limiting plate (606), one end of the limiting plate (606) is fixedly connected to a connecting plate (607), the inner wall of the connecting plate (607) is rotatably connected to a tensioning roller (608), and the surface of the transmission rod (602) is rotatably connected to a fixed seat (609).

2. The composite current collector cutting device according to claim 1, wherein: The front end of the first motor (601) is fixedly connected to the inner wall of the mounting plate (7), the number of the gears (603) is set to two, and the two gears (603) are symmetrically distributed with the transmission rod (602) as the center, and the number of the racks (604) is set to four, and the four racks (604) are symmetrically distributed with the U-shaped mounting frame (3) as the center.

3. The composite current collector cutting device according to claim 1, wherein: The bottom of the limiting plate (606) is fixedly connected to the upper surface of the workbench (1), and the bottom of the fixing seat (609) is fixedly connected to the top of the U-shaped mounting frame (3).

4. The composite current collector cutting device according to claim 3, wherein: The upper surface of the workbench (1) is fixedly connected to a vertical plate (8), the inner wall of the vertical plate (8) is rotatably connected to a guide roller (9), the left end of the workbench (1) is fixedly connected to a fixed frame (10), and the inner wall of the fixed frame (10) is rotatably connected to a reeling roller (11).

5. The composite current collector cutting device according to claim 4, characterized in that: The right end of the workbench (1) is fixedly connected to a fixed plate (12), the front end of the fixed plate (12) is fixedly connected to a second motor (14), the output end of the second motor (14) is fixedly connected to a winding roller (13), and the two ends of the winding roller (13) are rotatably connected to the inner wall of the fixed plate (12).

6. The composite current collector cutting device according to claim 1, wherein: A through slot (15) is provided in the middle of the workbench (1), and a sleeve (16) is fixedly connected to the inner top wall of the U-shaped mounting frame (3).

7. The composite current collector cutting device according to claim 6, characterized in that: The inner wall of the sleeve (16) is slidably connected to a limiting rod (17), and the bottom of the limiting rod (17) is fixedly connected to the top of the cutting knife (5).

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