Insulation sheet blanking device for battery production

Abstract

The utility model relates to the field of insulation sheet blanking devices, and discloses an insulation sheet blanking device for battery production, which comprises a workbench, the upper surface of the workbench is fixedly connected with a mounting rack, the top end in the mounting rack is fixedly connected with a hydraulic cylinder, and the bottom end of the hydraulic cylinder is fixedly connected with a mounting block. The device comprises a mounting block, a blanking knife is arranged at the bottom end of the mounting block, two limiting assemblies are arranged at the left end and the right end of the mounting block in a mirror image structure mode, each limiting assembly comprises a fixing plate and a U-shaped frame, the fixing plates are fixedly connected to the outer side surface of the mounting block, bolts are arranged at the top ends of the fixing plates, and moving plates are rotationally connected to the bottom ends of the bolts. According to the utility model, through the arrangement of the limiting assembly, when the blanking knife moves downwards to blank an insulating strip raw material, the raw material can be propped against and limited, so that the raw material is prevented from moving to a blanking position under the pressure of the blanking knife to influence the processing precision.

Description

Technical Field

[0001] The utility model relates to the field of insulating sheet blanking devices, in particular to an insulating sheet blanking device for battery production. Background Art

[0002] The battery insulating sheet is an insulating part arranged around the positive and negative electrodes of the battery to prevent abnormal discharge, having insulating and heat dissipation effects and playing a protective role for the battery. In the production process of the battery insulating sheet, a series of processes such as surface covering with a bottom film, middle punching, side cutting, and separation of the insulating sheet from the bottom film are required. Among them, the work of middle punching is particularly important.

[0003] After retrieval, Chinese Patent Publication No.: CN215749489U discloses an insulating mylar sheet production punching and forming device, including a limit rod, a cylinder, a telescopic rod, a support plate, a punching knife, a disassembly and assembly bolt, and a fixed socket. When in use, the sheet material is placed at the limit frame, the cylinder is started, and under the action of the cylinder, the telescopic rod and the support plate are driven to move downward. A punching knife is assembled at the bottom of the support plate, so as to drive the punching knife to punch downward and perform punching and forming processing on the sheet material, with relatively high automation efficiency.

[0004] However, in the actual use process of the above-mentioned insulating sheet, in order to punch out the required shape, the punching knife is set in a closed structure. When the punching knife moves downward to punch the raw material, the insulating sheet adapted to the shape of the punching knife may get stuck inside the punching knife, resulting in inability to discharge the material after punching. If it falls during the next punching process, it will also cause the appearance of the insulating sheet to change due to secondary punching, making it necessary for the staff to manually take out the insulating sheet, affecting the processing efficiency. Therefore, an insulating sheet blanking device for battery production is proposed to solve the above problems. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides an insulating sheet blanking device for battery production, aiming to improve the problem that the punched insulating sheet may get stuck inside the punching knife during the operation of the blanking device in the prior art, affecting the processing efficiency.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: An insulating sheet blanking device for battery production, including a workbench, a mounting frame is fixedly connected to the upper surface of the workbench, a hydraulic cylinder is fixedly connected to the inner top end of the mounting frame, an installation block is fixedly connected to the bottom end of the hydraulic cylinder, a blanking knife is arranged at the bottom end of the installation block, and two groups of limiting components are arranged at the left and right ends of the installation block in a mirror image structure. The limiting components include:

[0007] Fixing plate, the fixing plate is fixedly connected to the outer surface of the mounting block, a bolt is arranged at the top end of the fixing plate, a moving plate is rotatably connected to the bottom end of the bolt, a limiting rod is fixedly connected to the upper surface of the moving plate, an elastic member is fixedly connected to the bottom surface of the moving plate, and an arc-shaped strip is fixedly connected to the bottom end of the elastic member;

[0008] U-shaped frame, the U-shaped frame is fixedly connected to the upper surface of the arc-shaped strip, a push plate is fixedly connected to one end of the U-shaped frame away from the arc-shaped strip, a contact block is fixedly connected to the bottom end of the push plate, and grooves are formed in the left and right ends of the upper surface of the blanking knife.

[0009] As a further description of the above technical solution:

[0010] An installation groove is formed in the bottom surface of the mounting block, limiting grooves are formed in the left and right side surfaces of the blanking knife, moving blocks are arranged at the front and rear ends of the mounting block, a fixing rod is fixedly connected to the side surface of the moving block close to the mounting block, and a spring is sleeved on the outer side of the fixing rod.

[0011] As a further description of the above technical solution:

[0012] The bottom end of the bolt penetrates through the fixing plate, and the bolt is threadedly connected with the fixing plate.

[0013] As a further description of the above technical solution:

[0014] The top end of the limiting rod penetrates through the fixing plate, and a grounding clip is fixedly connected to the side surface of the fixing plate away from the mounting block.

[0015] As a further description of the above technical solution:

[0016] The center of the U-shaped frame is sleeved inside the groove, and the push plate is located inside the blanking knife.

[0017] As a further description of the above technical solution:

[0018] The top end of the blanking knife is inserted into the installation groove.

[0019] As a further description of the above technical solution:

[0020] The end of the fixing rod close to the mounting block penetrates through the inner wall of the mounting block, and the end of the fixing rod close to the mounting block is clamped inside the limiting groove.

[0021] As a further description of the above technical solution:

[0022] One end of the spring is fixedly connected to the outer surface of the mounting block, and the other end of the spring is fixedly connected to the outer surface of the moving block.

[0023] The utility model has the following beneficial effects:

[0024] 1. In the utility model, through the arranged limiting component, when the blanking knife moves downward to blank the insulating sheet raw material, the raw material can be tightly pressed and limited to avoid the raw material moving towards the blanking position when receiving the pressure from the blanking knife, which affects the processing accuracy. At the same time, when the blanking knife moves upward to reset, the insulating sheet entering the blanking knife can be pushed out to avoid the insulating sheet being stuck inside the blanking knife and unable to drop, which affects the processing efficiency. Through the cooperation of the arranged fixing plate, bolt, moving plate and limiting rod, the position of the push plate inside the blanking knife can be adjusted to avoid the push plate being unable to completely push out the raw material after replacing a new blanking knife with a changed length, which affects the blanking of the insulating sheet.

[0025] 2. In the utility model, through the cooperation of the arranged installation groove, limiting groove, moving block, fixing rod and spring, the blanking knife can be quickly installed and disassembled, which speeds up the replacement efficiency of the blanking knife and improves the processing efficiency. At the same time, the push plate and the U-shaped frame can enter the blanking knife through the groove to avoid the arranged limiting component hindering the installation and disassembly of the blanking knife. Description of the Drawings

[0026] Figure 1 is a schematic diagram of the whole of an insulating sheet blanking device for battery production proposed by the utility model;

[0027] Figure 2 is a schematic diagram of an insulating sheet blanking device for battery production proposed by the utility model Figure 1 at part A;

[0028] Figure 3 is a schematic diagram of the limiting component of an insulating sheet blanking device for battery production proposed by the utility model;

[0029] Figure 4 is a schematic diagram of an insulating sheet blanking device for battery production proposed by the utility model Figure 3 at part B.

[0030] Figure 5 is a schematic diagram of the inside of the installation block and the blanking knife of an insulating sheet blanking device for battery production proposed by the utility model.

[0031] Legend Explanation:

[0032] 1. Workbench; 2. Mounting frame; 3. Hydraulic cylinder; 4. Mounting block; 5. Blanking knife; 601. Fixed plate; 602. Bolt; 603. Moving plate; 604. Limiting rod; 605. Elastic member; 606. Arc bar; 607. U-shaped frame; 608. Pushing plate; 609. Contact block; 610. Groove; 701. Mounting groove; 702. Limiting groove; 703. Moving block; 704. Fixed rod; 705. Spring; 8. Grounding clip. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Refer to Figure 1 , an embodiment provided by the present invention: an insulating sheet blanking device for battery production, including a workbench 1, a mounting frame 2 is fixedly connected to the upper surface of the workbench 1, a collection box is placed below the workbench 1, and a through groove for blanking is opened on the upper surface of the workbench 1. When the raw material is completely blanked at the center of the workbench 1, it will enter the collection box through the through groove to complete blanking. A hydraulic cylinder 3 is fixedly connected to the inner top end of the mounting frame 2, a mounting block 4 is fixedly connected to the bottom end of the hydraulic cylinder 3, and a blanking knife 5 is arranged at the bottom end of the mounting block 4. The blanking knife 5 is detachably connected to the bottom end of the mounting block 4. When the hydraulic cylinder 3 is started, the blanking knife 5 can be driven by the mounting block 4 to move downward to blank the insulating sheet raw material, so that the raw material is blanked into the required shape. Two groups of limiting components are arranged at the left and right ends of the mounting block 4 in a mirror image structure.

[0035] Refer to Figures 2 - 4, the limiting component includes: a fixed plate 601 and a U-shaped frame 607. The fixed plate 601 is fixedly connected to the outer surface of the mounting block 4. On the surface of the fixed plate 601 away from the mounting block 4, a grounding clip 8 is fixedly connected. During the use of the blanking device, the staff can clamp the clip for grounding on the grounding clip 8 to avoid the static electricity carried on the limiting component. At the same time, it can also divert the static electricity on the insulating sheet contacted by the limiting component to eliminate static electricity, reducing the situation that the insulating sheet adheres to the push plate 608 due to static electricity. At the top of the fixed plate 601, there is a bolt 602. The bottom end of the bolt 602 penetrates through the fixed plate 601, and the bolt 602 is threadedly connected to the fixed plate 601. The bottom end of the bolt 602 is rotatably connected to a moving plate 603. When the bolt 602 rotates, it can drive the moving plate 603 to move synchronously. On the upper surface of the moving plate 603, a limiting rod 604 is fixedly connected. The top end of the limiting rod 604 penetrates through the fixed plate 601. The limiting rod 604 can guide and limit the movement of the moving plate 603, so that the moving plate 603 can only move in a straight line in the up and down direction. Furthermore, when the bolt 602 rotates, it can drive the moving plate 603 to move in a straight line in the up and down direction under the limitation of the limiting rod 604.

[0036] At the bottom surface of the moving plate 603, an elastic member 605 is fixedly connected. The bottom end of the elastic member 605 is fixedly connected to an arc-shaped strip 606. The bottom end of the arc-shaped strip 606 is lower than the bottom end of the blanking knife 5. The bottom surface of the arc-shaped strip 606 is arranged in an arc-shaped structure, which can effectively reduce the contact area between the arc-shaped strip 606 and the raw material. The U-shaped frame 607 is fixedly connected to the upper surface of the arc-shaped strip 606. At one end of the U-shaped frame 607 away from the arc-shaped strip 606, a push plate 608 is fixedly connected. The push plate 608 is located inside the blanking knife 5. The bottom surface of the push plate 608 and the bottom end of the blanking knife 5 are on the same horizontal plane. When the push plate 608 moves in a straight line in the up and down direction inside the blanking knife 5, it can push the insulating sheet entering the inside of the blanking knife 5, avoiding the insulating sheet getting stuck inside the blanking knife 5 during the blanking process and causing difficulty in feeding. At the bottom end of the push plate 608, a contact block 609 is fixedly connected. The bottom end of the contact block 609 is arranged in a spherical structure, which can reduce the contact area with the insulating sheet entering the inside of the blanking knife 5, avoiding the insulating sheet carrying moisture or impurities on its surface and causing it to adhere to the bottom surface of the push plate 608 and being difficult to drop. On the upper surface of the blanking knife 5, grooves 610 are opened at both the left and right ends. The center of the U-shaped frame 607 is sleeved inside the grooves 610. The U-shaped frame 607 can move in a straight line in the up and down direction inside the grooves 610, thus avoiding hindering the movement of the U-shaped frame 607.

[0037] When the blanking knife 5 moves downward to blank the raw material, the arc strip 606 will contact the raw material first, and squeeze the elastic member 605 to generate elastic potential energy during the continuous downward movement of the blanking knife 5. The raw material is tightly pressed and limited by the elastic potential energy of the elastic member 605, so that the raw material remains stable during the blanking process, avoiding the situation that the raw material moves towards the blanking position when being pressed by the blanking knife 5, thereby avoiding affecting the blanking accuracy. At the same time, the arc strip 606 will move upward relative to the blanking knife 5 and drive the push plate 608 to move synchronously, avoiding the push plate 608 from hindering the use of the blanking knife 5. When the blanking is completed and the blanking knife 5 moves upward to reset, the push plate 608 and the arc strip 606 will move downward relative to the blanking knife 5 to reset under the action of the elastic potential energy of the elastic member 605. At this time, the push plate 608 will push out the insulating sheet stuck inside the blanking knife 5.

[0038] Refer to Figure 5 , an installation groove 701 is opened on the bottom surface of the installation block 4, the top end of the blanking knife 5 is inserted into the inside of the installation groove 701, and the blanking knife 5 can be directly pulled out from the bottom end of the installation groove 701. Limiting grooves 702 are opened on both the left and right side surfaces of the blanking knife 5. Moving blocks 703 are arranged at both the front and rear ends of the installation block 4. A fixing rod 704 is fixedly connected to the surface of one side of the moving block 703 close to the installation block 4. When the moving block 703 moves, it can drive the fixing rod 704 to move synchronously. One end of the fixing rod 704 close to the installation block 4 penetrates through the inner wall of the installation block 4, and one end of the fixing rod 704 close to the installation block 4 is clamped inside the limiting groove 702. At this time, the fixing rod 704 clamps and fixes the blanking knife 5. A spring 705 is sleeved on the outer side of the fixing rod 704. One end of the spring 705 is fixedly connected to the outer surface of the installation block 4, and the other end of the spring 705 is fixedly connected to the outer surface of the moving block 703. When the moving block 703 moves outward from the installation block 4, it will pull the spring 705, causing the spring 705 to stretch and generate elastic potential energy.

[0039] When the blanking knife 5 needs to be replaced due to wear, the moving block 703 can be pulled to make the fixing rod 704 leave the inside of the limiting groove 702 to release the clamping limit on the blanking knife 5, and then the new blanking knife 5 can be directly inserted into the inside of the installation groove 701. Subsequently, when the moving block 703 is released, the fixing rod 704 can be reset under the action of the elastic potential energy of the spring 705 and re-enter the inside of the installation groove 701 for clamping, realizing the quick installation and disassembly of the blanking knife 5. When the length of the blanking knife 5 changes, the staff can rotate the bolt 602 to adjust the position of the moving plate 603, so as to keep the distance between the arc strip 606 and the bottom end of the blanking knife 5 consistent, ensuring that the push plate 608 can completely push out the insulating sheet entering the inside of the blanking knife 5.

[0040] Working principle: When the blanking knife 5 moves downward to blank the insulating sheet raw material, the arc bar 606 can, under the action of the elastic member 605, tightly limit the raw material to prevent the raw material from moving during the blanking process. After the blanking is completed, the push plate 608 will move downward relative to the blanking knife 5 under the action of the elastic potential energy of the elastic member 605 to push the insulating sheet stuck inside the blanking knife 5 downward, preventing the insulating sheet from getting stuck inside the blanking knife 5 and unable to drop the material. When the blanking knife 5 is worn and needs to be replaced, the moving block 703 can be pulled to release the clamping and fixing of the blanking knife 5. Then, the old blanking knife 5 is removed, and the new blanking knife 5 is inserted into the installation groove 701 and the moving block 703 is loosened to complete the disassembly and installation. During replacement, the push plate 608 and the U-shaped frame 607 can enter the blanking knife 5 through the groove 610, and the operation is simple. When the length of the newly replaced blanking knife 5 changes, the position of the push plate 608 can be adjusted by rotating the bolt 602 to completely push out the insulating sheet stuck inside the blanking knife 5.

[0041] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An insulating sheet punching device for battery production, comprising a workbench (1), a mounting frame (2) fixedly connected to the upper surface of the workbench (1), a hydraulic cylinder (3) fixedly connected to the top of the mounting frame (2), a mounting block (4) fixedly connected to the bottom of the hydraulic cylinder (3), a punching knife (5) provided at the bottom of the mounting block (4), characterized in that: Two sets of limit assemblies are arranged at the left and right ends of the mounting block (4) in a mirror-image structure, and the limit assemblies include: A fixed plate (601), the fixed plate (601) is fixedly connected to the outer surface of the mounting block (4), a bolt (602) is arranged at the top of the fixed plate (601), the bottom end of the bolt (602) is rotatably connected to a movable plate (603), the upper surface of the movable plate (603) is fixedly connected to a limiting rod (604), the bottom surface of the movable plate (603) is fixedly connected to an elastic member (605), and the bottom end of the elastic member (605) is fixedly connected to an arc strip (606); A U-shaped frame (607) is fixedly connected to the upper surface of the arc strip (606); one end of the U-shaped frame (607) away from the arc strip (606) is fixedly connected to a push plate (608); the bottom end of the push plate (608) is fixedly connected to a contact block (609); and grooves (610) are provided at both left and right ends of the upper surface of the punching knife (5).

2. The insulating sheet punching device for battery production according to claim 1, characterized in that: The bottom surface of the mounting block (4) is provided with a mounting groove (701), the left and right side surfaces of the punching knife (5) are provided with limiting grooves (702), the front and rear ends of the mounting block (4) are provided with moving blocks (703), a fixed rod (704) is fixedly connected to a surface of one side of the moving block (703) close to the mounting block (4), and a spring (705) is sleeved on the outer side of the fixing rod (704).

3. The insulating sheet punching device for battery production according to claim 1, characterized in that: The bottom end of the bolt (602) passes through the fixing plate (601), and the bolt (602) and the fixing plate (601) are threadedly connected.

4. The insulating sheet punching device for battery production according to claim 1, characterized in that: The top end of the limiting rod (604) passes through the fixing plate (601), and a grounding clip (8) is fixedly connected to a surface of a side of the fixing plate (601) away from the mounting block (4).

5. The insulating sheet punching device for battery production according to claim 1, characterized in that: The center of the U-shaped frame (607) is sleeved inside the groove (610), and the push plate (608) is located inside the punching knife (5).

6. The insulating sheet punching device for battery production according to claim 2, characterized in that: The top end of the punching knife (5) is plugged into the interior of the mounting groove (701).

7. The insulating sheet punching device for battery production according to claim 2, characterized in that: One end of the fixing rod (704) close to the mounting block (4) passes through the inner wall of the mounting block (4), and one end of the fixing rod (704) close to the mounting block (4) is clamped with the inside of the limiting groove (702).

8. The insulating sheet punching device for battery production according to claim 2, characterized in that: One end of the spring (705) is fixedly connected to the outer surface of the mounting block (4), and the other end of the spring (705) is fixedly connected to the outer surface of the moving block (703).

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