Lightweight insulation guard cutting device for use on a battery cell

Abstract

The utility model discloses a kind of light-weight insulation protective plate cutting equipment used on battery protection plate in the technical field of battery protection plate, including machine body, discharging rack, cutter template and cutter die pressing plate, cutter template and cutter die pressing plate are raised and lowered on machine body, the bottom cutting surface of cutter template is also provided with round hole cutter and ring cutter strip, cutting is carried out to protective plate by round hole cutter and ring cutter strip, the device can be automated cutting, and when cutting, original release paper does not need to be torn, after cutting, insulation protective plate is just cut into piece by piece protective plate, and adjacent protective plate is also spaced, so that the continuous operation of the device can be used as cutting section equipment of production line, and the cutting shape of insulation protective plate can be controlled and designed by the shape of ring cutter strip, cutting mode is flexible, cutting is convenient, and efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of battery cell protection plate technology, and in particular to a lightweight insulating protection plate cutting device used on battery cells. Background Technology

[0002] The power battery of a new energy vehicle consists of several modules, and each module consists of several cells. Lightweight insulating protective plates are needed inside the battery to isolate current and thus protect the cells within the module.

[0003] Currently, most of these lightweight insulating protective boards are made of polycarbonate film material, which not only reduces weight but also has high hardness and a certain degree of toughness, providing sufficient protection for the battery cell.

[0004] This type of insulation board needs to be cut into flat plates that match the shape of the battery cell. The raw materials for this insulation board are rolled up in three layers. Some are directly stacked and stored in flat plates, while others are stored in rolls. Regardless of the storage method, the structure is that the top layer is a polycarbonate film plate, the middle layer is a film, and the bottom layer is release paper for protection.

[0005] Before use, this type of insulating protective board needs to be cut to size. When using it, the release paper is peeled off, and the insulating protective board is directly attached to the battery cell to be installed using the adhesive film.

[0006] The cutting process for lightweight insulating protective boards requires manual cutting with a fixed-shaped blade, and each board must be cut in one go, making the operation quite laborious. Due to the manufacturing requirements and processes, the protective boards need to be constantly protected by release paper, and they also require proper storage and transport. Each time the protective board is peeled off, release paper must be immediately reapplied for protection. Therefore, current manual production involves applying adhesive to the insulating protective board, cutting it into sheets, creasing the board, die-cutting the release paper, and finally manually replacing the release paper to complete the production of one board. This process is cumbersome. After cutting, the release paper is not completely removed, so the cut insulating protective boards must be manually reapplied and protected again. Manual production results in inconsistent quality and low production efficiency.

[0007] Based on this, this utility model designs a lightweight insulating protective plate cutting device for use on battery cells to solve the above problems. Utility Model Content

[0008] The purpose of this invention is to provide a lightweight insulating protective plate cutting device for use in battery cells. This device can automatically cut the plates without tearing off the original release paper. After cutting, the insulating protective plate is cut into individual protective plates, and adjacent protective plates are separated. This allows the continuous operation of this device to serve as a cutting section in a production line. Furthermore, the cutting shape of the insulating protective plate can be controlled and designed by the shape of the ring blade, making the cutting method flexible, convenient, and efficient.

[0009] This utility model is implemented as follows: a lightweight insulating protective plate cutting device used on battery cells, comprising:

[0010] Machine body, feeding rack, cutting template and cutting die pressure plate;

[0011] The machine body is a stable and supported cabinet. A pressure bar is provided at the front end of the top of the machine body, and a discharge roller is provided at the rear end of the top of the machine body.

[0012] The feeding rack is a vertically erected support frame. Multiple feeding motors are installed on the top of the feeding rack. Each feeding motor has a feeding shaft installed at its output end. Each feeding shaft is horizontally arranged on the front of the feeding rack and is parallel to each other.

[0013] A horizontal cutting platform is also stably installed on the top of the machine body.

[0014] The die template and die plate are flat plate structures. The die template and die plate are horizontally set directly above the cutting table. The die plate is raised and lowered on the cutting table. The die template is set between the die plate and the cutting table. The die template and the die plate are fitted together and locked together as an integral structure.

[0015] The bottom edge of the blade template is provided with a ring blade, and the bottom of the blade template is also provided with multiple round hole blades. The round hole blades are circular ring blades. The round hole blades and the ring blades are fixed to the bottom of the blade template and do not contact each other.

[0016] The bottom surface of the blade template is also covered with a buffer pad, which does not obstruct the round hole blade and the ring blade strip;

[0017] The top surface of the blade template is recessed to form a waste slag groove. The waste slag groove is U-shaped and its two ends penetrate the front and rear sides of the blade template. Multiple slag discharge holes are formed inside the waste slag groove. Each slag discharge hole is aligned and connected to the inner hole of a round hole blade. The slag discharge holes penetrate the upper and lower surfaces of the blade template.

[0018] Furthermore, a guide platform is provided at the front end of the machine body, and the guide platform is a flat plate.

[0019] Furthermore, multiple feeding axes are symmetrically arranged on the front and rear sides of the cutting template.

[0020] Furthermore, there are four circular hole cutters, which are arranged in a rectangular pattern;

[0021] The cushioning pad is a foam pad.

[0022] Furthermore, the circular hole cutter and the ring cutter have the same cutting depth;

[0023] The inner hole of the circular hole cutter is hollow, and the axis of the inner hole of the circular hole cutter coincides with that of the slag discharge hole. The slag discharge hole is a funnel-shaped circular hole that is larger at the top and smaller at the bottom. The opening diameter at the lower end of the slag discharge hole is the same as the inner diameter of the circular hole cutter. The top of the cutter template is fitted and locked to the bottom of the cutter mold pressure plate. The bottom of the waste residue trough does not contact the bottom of the cutter mold pressure plate. The waste residue trough forms a long strip channel below the cutter mold pressure plate.

[0024] The waste residue trough is opened along the front and back of the machine body.

[0025] The beneficial effects of this utility model are: 1. This utility model uses an automated lifting die plate to carry the die template for downward cutting, and the die template and the die plate are a modular structure locked by bolts. By changing the die template, different shaped ring blades can be replaced, making the cutting of the insulating protective plate by this device more flexible, with high automated cutting efficiency. The cutting precision is also higher when the hydraulic press is used for automated cutting.

[0026] 2. The bottom of the blade template of this device is also equipped with a buffer pad, which not only plays a role in preventing slipping and pressing the protective plate during cutting, but also plays a role in buffering the blade during cutting, and can limit the cutting depth of the blade to ensure that the blade only cuts the blade insulation protective plate.

[0027] 3. The top of the blade template of this device is also equipped with a slag discharge hole and a waste slag trough. After the cutting is completed by the fixed-shaped ring blade, the cut waste material can be directly discharged through the slag discharge hole and collected through the waste slag trough. The waste material between different protective plates is still pasted on the release paper and is wound up by the feeding shaft at the rear end. After the cutting is completed, the product treatment is stable, easy to use, and the finished product is easy to rewind. Attached Figure Description

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the stacked structure of the die-cutting plate, die-cutting template, and cutting platform of this utility model;

[0031] Figure 3 This is a schematic diagram of the distribution structure of the ring cutter strip and the round hole cutter at the bottom of the cutter template of this utility model;

[0032] Figure 4 This is a schematic diagram of the ring cutter bar and the round hole cutter of this utility model in the disassembled state from the cutter template;

[0033] Figure 5 This is a schematic diagram of the top structure of the blade template of this utility model;

[0034] Figure 6 This is a schematic diagram of the protective board material of this utility model and the release paper layer thereon.

[0035] Figure 7 This is a schematic diagram of the cross-sectional structure of the slag discharge hole of this utility model.

[0036] The attached diagram lists the components represented by each number as follows:

[0037] 1-Machine body, 11-Pressure bar, 12-Discharge roller, 13-Guide table, 2-Discharge rack, 21-Discharge shaft, 22-Feeding motor, 3-Cut template, 31-Ring cutter bar, 32-Round hole cutter, 33-Buffer pad, 34-Slag discharge hole, 35-Waste slag trough, 4-Cut die pressure plate, 41-Cutting platform, 5-Protective plate, 51-Film, 52-Release paper. Detailed Implementation

[0038] Please see Figures 1 to 7 As shown, this utility model provides a lightweight insulating protective plate cutting device used on battery cells. In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] In a specific embodiment of the technical solution of this utility model:

[0040] Includes machine body 1, feeding rack 2, cutting template 3, and cutting die pressure plate 4;

[0041] The machine body 1 is the operating table of the die-cutting machine. A pressure bar 11 is set at the front end of the top of the machine body 1, and a discharge roller 12 is set at the rear end of the top of the machine body 1. A drive motor is set at one end of both the pressure bar 11 and the discharge roller 12. The long strip of product material is tensioned by the pressure bar 11 and the discharge roller 12 to ensure that the product is spread between the die plate 4 and the cutting table 41. A guide table 13 is also set at the front end of the machine body 1. The guide table 13 is a flat plate and serves as a platform to support the spread material. It can support the three-layer clamping material protection plate formed by the front adhesive coating equipment.

[0042] The feeding rack 2 is a vertically erected support frame. Multiple feeding motors 22 are installed at the top of the feeding rack 2, and each feeding motor 22 has a feeding shaft 21 installed at its output end. Each feeding shaft 21 is horizontally positioned on the front of the feeding rack 2, and all feeding shafts 21 are parallel to each other. The height of the feeding rack 2 can be adjusted as needed, ensuring that the height and front-back position of each feeding shaft 21 correspond, guaranteeing sufficient tension on the long strip-shaped protective plate 5 and its release paper 52 for accurate cutting. Multiple feeding shafts 21 are symmetrically arranged on the front and rear sides of the cutting template 3. The front feeding shaft 21 releases the strip-shaped raw material, while the rear feeding shaft 21 rewinds the cut waste material. The finished protective plate 5 and release paper 52 are pressed together by the discharge roller 12 and continuously conveyed to the rear end.

[0043] A horizontal cutting platform 41 is also stably installed on the top of the machine body 1 to support the cutting platform and ensure stability.

[0044] The die template 3 and the die plate 4 are flat plate structures. Both the die template 3 and the die plate 4 are horizontally set directly above the cutting platform 41. The die plate 4 is raised and lowered on the cutting platform 41. The die template 3 is set between the die plate 4 and the cutting platform 41. The die template 3 and the die plate 4 are fitted together and locked into an integral structure. The die plate 4 is raised and lowered vertically at the top of the machine body 1 by cylinders at the four corners. When it is raised, the die template 3 is raised synchronously, thereby loosening the tough flat or strip material, which is convenient for subsequent pulling and moving. When the die plate 4 drives the die template 3 to lower, the die template 3 lowers down to complete the cutting action on the flat material.

[0045] A ring blade 31 is provided around the bottom edge of the blade template 3. The ring blade 31 has the same shape and size as the protective plate 5. Multiple round hole blades 32 are also provided at the bottom of the blade template 3. The round hole blades 32 are circular ring blades. The round hole blades 32 and the ring blade 31 are fixed to the bottom of the blade template 3. The round hole blades 32 and the ring blade 31 do not contact each other.

[0046] There are four round hole cutters 32, which are arranged in a rectangular shape and correspond to the positions of the round holes in the protective plate 5.

[0047] The buffer pad 33 is a foam pad that fills the gap between the round hole cutter 32 and the ring cutter strip 31.

[0048] The round hole cutter 32 and the ring cutter 31 have the same cutting depth;

[0049] The bottom surface of the cutter template 3 is also covered with a buffer pad 33, which does not obstruct the round hole cutter 32 and the ring cutter strip 31;

[0050] The top surface of the blade template 3 is recessed downward to form a waste slag groove 35. The waste slag groove 35 is a U-shaped groove. Both ends of the waste slag groove 35 penetrate the front and rear sides of the blade template 3. Multiple slag discharge holes 34 are formed inside the waste slag groove 35. Each slag discharge hole 34 is aligned and connected to the inner hole of a round hole blade 32. The slag discharge holes 34 penetrate the upper and lower surfaces of the blade template 3.

[0051] The inner hole of the round hole cutter 32 is hollow, and the inner hole of the round hole cutter 32 coincides with the axis of the slag discharge hole 34. The slag discharge hole 34 is a funnel-shaped round hole that is larger at the top and smaller at the bottom. The opening diameter of the lower end of the slag discharge hole 34 is the same as the inner diameter of the round hole cutter 32. The top of the cutter template 3 is fitted and locked to the bottom of the cutter mold pressure plate 4. The bottom of the waste slag trough 35 does not contact the bottom of the cutter mold pressure plate 4. The waste slag trough 35 forms a long strip channel below the cutter mold pressure plate 4.

[0052] Waste slag trough 35 is opened along the front and back of the machine body 1, and the opening direction of waste slag trough 35 is perpendicular to the cutting raw material, that is, perpendicular to the traveling direction of protective plate 5.

[0053] When this utility model is used, the polycarbonate film raw material is in the form of a roll. In the preceding process, the roll is coated with adhesive by a coating equipment to form a spread-out state. Sufficient tension is provided by multiple feeding shafts 21, and then the material is flattened by the pressing rod 11, so that the polycarbonate film raw material is spread on the cutting table 41. At the same time, the discharge roller 12 at the rear end also flattens and conveys the finished product after cutting.

[0054] After the adhesive coating process, the product enters the die-cutting process. During cutting, the die plate 4 carries the bottom die template 3 and moves up and down synchronously to cut. The ring blade 31 and the round hole blade 32 at the bottom of the die template 3 are consistent with the shape of the protective plate 5 of the product. During cutting, the circular polycarbonate film waste cut off by the round hole blade 32 will exit upward through the slag discharge hole 34 and be collected through the waste slag trough 35. After a certain amount is accumulated, it will exit to both sides along the waste slag trough 35 and fall onto the operating platforms on both sides of the machine body 1. Alternatively, a waste box can be set up for collection. The cutting thickness of the ring blade 31 and the round hole blade 32 of this device only cuts the blade film 52 and does not cut the release paper. Therefore, after cutting, the original protective plate 5 is still attached to the release paper, while the waste between two adjacent protective plates 5 has been cut off, forming intermittent waste. This is the continuous waste formed by the skip cutting of this device. This continuous long strip of waste can be wound up by the feeding shaft 21 at the rear end of the die template 3. The jump distance is the distance between each die during the operation of the die-cutting machine. During the die-cutting process, the die only cuts to the film 52, that is, cuts the film 52, but does not cut the release paper 51. The release paper 51 is not cut. After the die-cutting process, the waste polycarbonate film at the edge will be taken away and rolled up. What remains is the protective plate 5 product with the same intervals on the entire release paper. The product is flattened by the discharge roller 12 and sent out.

[0055] The entire cutting operation is accomplished through a controller, which can be a PLC controller.

[0056] The thickness of the release paper is 0.09-0.13mm, the thickness of the film 52 is 0.08-0.12mm, and the thickness of the polycarbonate film, i.e. the protective plate 5, is 0.3-0.6mm.

[0057] The front and rear of this device refer to the direction of material travel, with the starting point of the material being the front end and the rear end referring to the direction of finished product output. The front and back refer to the front and back sides of the machine body 1 in the figure, which are the left and right sides of the direction of material travel. The orientation or positional relationship indicated by this utility model is based on the orientation or positional relationship shown in the attached figure and is only for the convenience of describing this utility model and simplifying the description. It is not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0058] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A lightweight insulating protective plate cutting device used on battery cells, characterized in that, include: Machine body (1), feeding rack (2), cutting template (3) and cutting die pressure plate (4); The machine body (1) is a cabinet with stable support. A pressure bar (11) is provided at the front end of the top of the machine body (1), and a discharge roller (12) is provided at the rear end of the top of the machine body (1). The feeding rack (2) is a vertically erected support. Multiple feeding motors (22) are installed on the top of the feeding rack (2). Each feeding motor (22) has a feeding shaft (21) installed at its output end. Each feeding shaft (21) is horizontally arranged on the front of the feeding rack (2). Each feeding shaft (21) is parallel to each other. A horizontal cutting platform (41) is also stably installed on the top of the machine body (1). The cutting template (3) and the cutting die plate (4) are flat plate structures. The cutting template (3) and the cutting die plate (4) are both horizontally arranged directly above the cutting platform (41). The cutting die plate (4) is raised and lowered on the cutting platform (41). The cutting template (3) is arranged between the cutting die plate (4) and the cutting platform (41). The cutting template (3) and the cutting die plate (4) are fitted together and locked together as an integral structure. The bottom edge of the blade template (3) is provided with a ring blade (31), and the bottom of the blade template (3) is also provided with a plurality of round hole blades (32). The round hole blades (32) are circular ring blades. The round hole blades (32) and the ring blades (31) are fixed to the bottom of the blade template (3), and the round hole blades (32) and the ring blades (31) do not contact each other. The bottom surface of the blade template (3) is also covered with a buffer pad (33), which does not obstruct the round hole blade (32) and the ring blade strip (31); The top surface of the blade template (3) is recessed downward to form a waste slag groove (35). The waste slag groove (35) is a U-shaped groove. Both ends of the waste slag groove (35) penetrate the front and rear sides of the blade template (3). Multiple slag discharge holes (34) are formed inside the waste slag groove (35). Each slag discharge hole (34) is aligned and connected to the inner hole of a round hole blade (32). The slag discharge hole (34) penetrates the upper and lower surfaces of the blade template (3).

2. The lightweight insulating protective plate cutting equipment used on battery cells according to claim 1, characterized in that: The front end of the machine body (1) is also provided with a guide platform (13), which is a flat plate.

3. The lightweight insulating protective plate cutting equipment used on battery cells according to claim 1, characterized in that: Multiple feeding shafts (21) are symmetrically arranged on the front and rear sides of the cutting template (3).

4. The lightweight insulating protective plate cutting equipment used on battery cells according to claim 1, characterized in that: There are four circular hole cutters (32), and the four circular hole cutters (32) are arranged in a rectangular shape; The cushioning pad (33) is a foam pad.

5. A lightweight insulating protective plate cutting device for use on battery cells according to claim 1, characterized in that: The circular hole cutter (32) and the ring cutter (31) have the same cutting depth; The inner hole of the round hole cutter (32) is hollow, and the inner hole of the round hole cutter (32) coincides with the axis of the slag discharge hole (34). The slag discharge hole (34) is a funnel-shaped round hole with a larger upper part and a smaller lower part. The lower opening diameter of the slag discharge hole (34) is the same as the inner hole diameter of the round hole cutter (32). The top of the cutter template (3) is fitted and locked to the bottom of the cutter mold pressure plate (4). The bottom of the waste residue trough (35) does not contact the bottom of the cutter mold pressure plate (4). The waste residue trough (35) forms a long strip channel below the cutter mold pressure plate (4). The waste residue tank (35) is opened along the front and back directions of the machine body (1).

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