A new energy automobile battery pack die cutting equipment

Abstract

The utility model discloses a new energy automobile battery package die cutting equipment, including the bottom frame, the bottom frame upper end one side is connected with die cutting processing equipment, the bottom frame upper end other side is connected with the roller, the roller upper side is connected with the release film, the release film upper side is pasted with insulating film body, the bottom frame one side upper portion is connected with C shaped board, C shaped board inner wall both sides are rotatably connected with the supporting roller, the supporting roller upper side is connected with release film upper side, C shaped board upper end one side is connected with the winding mechanism, the winding mechanism is used for winding to the discarded insulating film body, winding mechanism one side lower part is connected with the material guiding mechanism, C shaped board inner wall upper portion is connected with the stripping mechanism, the utility model discloses the synergic design of material guiding mechanism, stripping mechanism and static electricity elimination mechanism, has realized the whole process stability of insulating film waste material from static electricity and, mechanical guide, pneumatic separation to active traction, completely exhausts.

Description

Technical Field

[0001] This utility model relates to the field of automotive battery pack die-cutting technology, specifically to a new energy vehicle battery pack die-cutting equipment. Background Technology

[0002] New energy vehicle battery packs contain a large number of non-metallic functional materials, such as heat insulation pads, insulating films, cushioning foam, thermal conductive pads, and double-sided tape. These materials need to be precisely cut into complex two-dimensional shapes to match the specific contours and installation interfaces of the cells, modules, and housings. High-precision CNC flatbed die-cutting technology has become the mainstream process for processing such materials due to its clean, efficient, and flexible characteristics. This process usually adopts roll-to-roll or sheet-to-sheet production methods, using precision dies to punch the composite material in the die-cutting equipment to achieve rapid prototyping of parts, providing standardized and highly consistent prefabricated parts for the subsequent automated assembly of the battery pack.

[0003] In the die-cutting process of materials such as insulating films, the insulating film and release paper are usually laminated with an adhesive layer before die-cutting, forming a three-layer structure of insulating film, adhesive layer, and release paper. The die precisely cuts through the upper layer of material while keeping the release paper intact. After die-cutting, the product adheres to the release paper by the adhesive layer, and the outer waste material forms a mesh framework. However, due to the inherent high insulation properties of insulating materials, static charge easily accumulates during high-speed cutting and separation, causing electrostatic adsorption between the waste material and the product. At the same time, the microscopic burrs and adhesive residues at the material cutting edges can form mechanical interlocking, while flexible insulating materials... The localized deformation of the insulating film under stress further enhances this adhesion effect. When the winding roller applies tension to peel off the waste material, the "adhesive force" formed by electrostatic adsorption, micro-mechanical interlocking force, and material deformation can easily exceed the adhesive force of the product's local area to the release paper. As a result, the waste material is not cleanly separated along the cutting line during the winding process. Instead, it peels off the insulating film product, which should be firmly fixed, from the release paper and rolls it up together. This directly leads to a decrease in product yield, material waste, and introduces a safety hazard of insulation deficiency in subsequent battery pack assembly. Utility Model Content

[0004] The purpose of this invention is to provide a die-cutting device for new energy vehicle battery packs to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A die-cutting device for new energy vehicle battery packs includes a base frame, a die-cutting processing device connected to one side of the upper end of the base frame, a support roller connected to the other side of the upper end of the base frame, a release film connected above the support roller, an insulating film body pasted on the release film, a C-shaped plate connected to the upper part of one side of the base frame, support rollers rotatably connected to both sides of the inner wall of the C-shaped plate, the upper part of the support rollers contacting the upper part of the release film, a winding mechanism connected to the upper side of the C-shaped plate for winding up the waste insulating film body, a material guiding mechanism connected to the lower part of one side of the winding mechanism, a peeling mechanism connected to the upper part of the inner wall of the C-shaped plate, and an electrostatic elimination mechanism connected to one side of the C-shaped plate. Preferably, the peeling mechanism includes a guide roller and an air knife. The two ends of the guide roller are rotatably connected to both sides of the inner wall of the C-shaped plate. The guide roller is located above the support roller, and one side of the guide roller is in contact with the upper end of the insulating film body.

[0006] Preferably, the winding mechanism includes a support rod, a rotating rod rotatably connected to one side of the support rod, one end of the rotating rod extending through to one side of the support rod, a waste roller connected to one end of the rotating rod, a collecting motor connected to the middle of one side of the support rod, drive wheels connected to the outer wall of the rotating rod and the outer wall of the output end of the collecting motor, the two drive wheels being connected by a drive belt, and the outer wall of the waste roller being wound around one end of the insulating film body.

[0007] Preferably, the lower ends of the C-shaped plate are connected to connecting frames on both sides, and a collecting roller is rotatably connected between the two connecting frames. A connecting motor is connected to one side of one of the connecting frames, and the output end of the connecting motor extends through to one side of the corresponding connecting frame and is connected to one end of the collecting roller. One end of the release film is wrapped around the outer wall of the collecting roller.

[0008] Preferably, the material guiding mechanism includes a fixed plate, a drive motor is connected to one side of the fixed plate, the output end of the drive motor extends through to one side of the fixed plate, a connecting spike wheel is connected to the output end of the drive motor, and one side of the connecting spike wheel contacts one side of the insulating film body.

[0009] Preferably, the air knife is inclined and located on one side of the guide roller and above the support roller. Adjusting rods are connected to the upper parts of both ends of the air knife. One end of one adjusting rod is rotatably connected to one side of the inner wall of the C-shaped plate, and the other end of the adjusting rod extends through to one side of the C-shaped plate and is connected to a rotating handle. An air supply pipe is connected to one side of the upper end of the air knife. One end of the air supply pipe extends through to one side of the C-shaped plate, and the middle part of the air supply pipe is set as a flexible tube.

[0010] Preferably, the static elimination mechanism includes brackets, one end of each of the two brackets is connected to one side of the C-shaped plate, and mounting grooves are provided on both sides of the upper end of the two brackets. Static rollers are placed inside the two mounting grooves on the right and the two mounting grooves on the left. There are two sets of static rollers, and pressure plates are connected to the upper ends of the two brackets.

[0011] Preferably, the two pressure plates press the two ends of the two electrostatic rollers respectively, and the lower middle part of the two pressure plates is connected to a locking block. The upper end of the two brackets is provided with a locking groove corresponding to the locking block, and the two locking blocks are engaged with the inside of the locking groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are: Through the coordinated design of the peeling mechanism and the material guiding mechanism, efficient and controllable physical separation and traction of insulating film waste are achieved. The guide roller establishes an initial physical separation point between the waste and the product by forcibly changing the waste path, creating the basic conditions for subsequent peeling. The air knife adopts an adjustable angle tilting design, which can accurately and centrally blow high-pressure air into the initial gap. The pneumatic peeling force generated can overcome the microscopic adhesion between the waste and the product in a large area and non-contact manner. The separation effect is significant and does not damage the product. The connecting spike wheel provides continuous active mechanical traction for the waste after it has been initially separated by the air knife, ensuring that thin or easily swaying waste can be smoothly transported to the winding position along the set path. This effectively prevents the waste from sticking back, accumulating or blocking, thereby ensuring the smoothness, stability and thoroughness of the entire waste discharge process.

[0013] With the electrostatic elimination mechanism, the two sets of electrostatic rollers can fully neutralize the static electricity on the surface of the insulating film material, ensuring that static charge can be effectively eliminated under different production speeds or ambient humidity. This eliminates the problem of waste material adhesion caused by electrostatic adsorption at the source, providing a reliable prerequisite for the physical peeling process. At the same time, the mounting slot of the bracket enables precise pre-positioning of the electrostatic rollers, and the pressure plate with locking blocks enables quick clamping and fixing, improving the efficiency of disassembly and assembly, and significantly reducing the difficulty and time cost of equipment maintenance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model; Figure 2 This is an overall sectional view of the device; Figure 3 This is a schematic diagram of the connection structure between the drive motor and the connecting spike wheel; Figure 4 This is a schematic diagram of the connection structure between the static elimination mechanism and the C-shaped plate; Figure 5 This is a schematic diagram of the connection structure between the pressure plate and the card block.

[0015] In the diagram: 1. Base frame; 2. Die-cutting equipment; 3. Support roller; 4. Release film; 5. Insulating film body; 6. C-shaped plate; 7. Support roller; 8. Support rod; 9. Rotating rod; 10. Waste roller; 11. Collection motor; 12. Drive wheel; 13. Drive belt; 14. Connecting frame; 15. Collection roller; 16. Fixing plate; 17. Drive motor; 18. Connecting spike wheel; 19. Bracket; 20. Mounting groove; 21. Electrostatic roller; 22. Pressure plate; 23. Clamping block; 24. Air knife; 25. Adjusting rod; 26. Air supply pipe; 27. Guide roller. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-5 This utility model provides a technical solution: a new energy vehicle battery pack die-cutting equipment, including a base frame 1, a die-cutting processing device 2 connected to one side of the upper end of the base frame 1, a support roller 3 connected to the other side of the upper end of the base frame 1, a release film 4 connected above the support roller 3, an insulating film body 5 pasted above the release film 4, a C-shaped plate 6 connected to the upper part of one side of the base frame 1, support rollers 7 rotatably connected to both sides of the inner wall of the C-shaped plate 6, the upper part of the support rollers 7 contacting the upper part of the release film 4, a winding mechanism connected to one side of the upper end of the C-shaped plate 6, the winding mechanism being used to wind up the waste insulating film body 5, a material guiding mechanism connected to the lower part of one side of the winding mechanism, a peeling mechanism connected to the upper part of the inner wall of the C-shaped plate 6, and an electrostatic elimination mechanism connected to one side of the C-shaped plate 6; The base frame 1 provides stable structural support and installation benchmark for the overall equipment. The die-cutting processing equipment 2 is used to punch the insulating film body 5 into a specified shape using a precision die. The support roller 3 supports and guides the composite roll to be processed. The C-shaped plate 6 is used to install and integrate the various functional mechanisms required for the waste discharge process. The support roller 7 is used to support and guide the release film 4 to maintain horizontal and stable operation during the waste discharge process. The winding mechanism is used to actively and continuously wind up the stripped waste insulating film body 5. The material guiding mechanism is used to assist the waste material to smoothly enter the winding mechanism through the traction of the spike wheel, preventing it from drifting or clogging. The peeling mechanism is used to forcibly separate the insulating film waste from the product through a combination of mechanical guidance and pneumatic blowing. The static elimination mechanism is used to eliminate the static charge on the material surface, reduce the static adsorption between the waste material and the product, and ensure smooth peeling.

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 3 This utility model provides a technical solution: a new energy vehicle battery pack die-cutting equipment, the winding mechanism includes a support rod 8, a rotating rod 9 rotatably connected to one side of the support rod 8, one end of the rotating rod 9 extending through to one side of the support rod 8, a waste roller 10 connected to one end of the rotating rod 9, a collecting motor 11 connected to the middle of one side of the support rod 8, drive wheels 12 connected to the outer wall of the rotating rod 9 and the outer wall of the output end of the collecting motor 11, the two drive wheels 12 being connected by a drive belt 13, and the outer wall of the waste roller 10 being wound and connected to one end of the insulating film body 5; The support rod 8 provides a stable mounting and support base for the winding component. The rotating rod 9 transmits power and supports the waste roller 10 to rotate. The waste roller 10 is used to wind and collect the mesh insulating film waste peeled off from the release film. The collecting motor 11 serves as the main power source to drive the entire winding mechanism. The drive wheel 12 and the drive belt 13 work together to smoothly and synchronously transmit the power of the collecting motor 11 to the rotating rod 9. The waste roller 10 ensures that the waste is continuously and neatly wound on the waste roller 10, realizing the automatic collection and cleaning of waste.

[0020] Please see Figure 1-4 This utility model provides a technical solution: a new energy vehicle battery pack die-cutting equipment, wherein a connecting frame 14 is connected to both sides of the lower end of a C-shaped plate 6, and a collecting roller 15 is rotatably connected between the two connecting frames 14. A connecting motor is connected to one side of one of the connecting frames 14, and the output end of the connecting motor extends through to one side of the corresponding connecting frame 14 and is connected to one end of the collecting roller 15. One end of the release film 4 is wrapped around the outer wall of the collecting roller 15. The material guiding mechanism includes a fixed plate 16, a drive motor 17 is connected to one side of the fixed plate 16, the output end of the drive motor 17 extends through to one side of the fixed plate 16, and a connecting spike wheel 18 is connected to the output end of the drive motor 17. One side of the connecting spike wheel 18 contacts one side of the insulating film body 5. The connecting frame 14 is used to provide an installation position for the collecting roller 15 and its driving components. The collecting roller 15 is used to wind up the release film 4 that has been peeled off and only carries the effective insulating film parts. The connecting motor is used to provide independent and controllable power for the rotation of the collecting roller 15. The continuous and orderly winding of the release film 4 by the collecting roller 15 facilitates the subsequent storage of the release film roll carrying the product or direct feeding to the mounting station. The fixed plate 16 provides a stable mounting reference for the material guiding drive component, the drive motor 17 provides power for the material guiding action, and the connecting spike wheel 18 pierces the waste material of the insulating film body 5 through its surface needle teeth to provide active mechanical traction. The connecting spike wheel 18 ensures effective gripping and guidance of the waste material, prevents the waste material from drifting, loosening or accumulating after peeling, and ensures that it enters the winding mechanism smoothly.

[0021] Please see Figure 2-4 This utility model provides a technical solution: a new energy vehicle battery pack die-cutting equipment, the peeling mechanism includes a guide roller 27 and an air knife 24, the two ends of the guide roller 27 are rotatably connected to both sides of the inner wall of the C-shaped plate 6, the guide roller 27 is located above the support roller 7, one side of the guide roller 27 is in contact with the upper side of the insulating film body 5, the air knife 24 is set in an inclined shape, the air knife 24 is located on one side of the guide roller 27, the air knife 24 is located above the support roller 7, and the upper part of both ends of the air knife 24 is connected to an adjustment rod 25, one end of one adjustment rod 25 is rotatably connected to one side of the inner wall of the C-shaped plate 6, and the other end of the adjustment rod 25 extends through to one side of the C-shaped plate 6 and is connected to a rotating handle, the upper side of the air knife 24 is connected to an air supply pipe 26, one end of the air supply pipe 26 extends through to one side of the C-shaped plate 6, and the middle part of the air supply pipe 26 is set as a flexible tube; The guide roller 27 is used to forcibly change the running path of the insulating film waste, causing it to bend upwards, thereby forming an initial peeling gap between the waste and the product. The inclined air knife 24 guides the high-pressure airflow to the peeling gap at the optimal angle, optimizing the pneumatic peeling effect. The adjusting rod 25 is used to adjust the installation angle of the air knife 24. The tilt angle of the air knife 24 can be adjusted by manually rotating the handle to adapt to different materials or process requirements. The air supply pipe 26 delivers high-pressure gas from an external air source to the air knife 24. The flexible section of the air supply pipe 26 is used to avoid interference or damage caused by rigid pipe connections when adjusting the angle of the air knife 24, ensuring unobstructed airflow and flexibility of mechanism adjustment.

[0022] Please see Figure 4-5 This utility model provides a technical solution: a new energy vehicle battery pack die-cutting equipment, the static elimination mechanism includes a bracket 19, one end of two brackets 19 is connected to one side of a C-shaped plate 6, and two mounting slots 20 are opened on both sides of the upper end of the two brackets 19. Static rollers 21 are placed inside the two mounting slots 20 on the right and the two mounting slots 20 on the left. There are two sets of static rollers 21. The upper end of the two brackets 19 is connected to a pressure plate 22. The two pressure plates 22 press the two ends of the two static rollers 21 respectively. The lower middle part of the two pressure plates 22 is connected to a locking block 23. The upper end of the two brackets 19 is provided with a locking groove corresponding to the locking block 23. The two locking blocks 23 are locked into the locking groove. The bracket 19 is used to support and fix the static elimination component and securely connect it to the C-shaped plate 6. The mounting groove 20 is used to precisely support and position the static roller 21, ensuring that its installation position is accurate and easy to insert. The static roller 21 effectively eliminates static electricity generated on the surface of the insulating film body 5 due to friction and cutting through contact or ionization. The pressure plate 22 fixes and presses the static roller 21 from above to prevent it from jumping or shifting during operation. The locking block 23 cooperates with the locking groove to form a quick locking structure, realizing convenient installation and removal of the pressure plate 22. The pressure plate 22 can be quickly fixed or released without tools, which is convenient for daily maintenance, cleaning or replacement of the static roller 21.

[0023] It should be noted that the power supply and control methods of the power components such as the collecting motor 11, the driving motor 17, and the connecting motor involved in this invention are all common knowledge and conventional settings in the field and belong to the scope of prior art. Therefore, they will not be described in detail here.

[0024] Working principle: During use, the upper insulating film body 5 and the lower release film 4 of the composite roll are conveyed from the idler roller 3 to the inside of the die-cutting equipment 2. The precision die in the die-cutting equipment 2 punches the insulating film body 5 and its adhesive layer under the program control. The cutting depth is precisely controlled to cut through the insulating film body 5 and the adhesive layer, but without damaging the bottom release film 4. Thus, the insulating film body 5 is processed into the product of the required shape and the outer mesh waste frame. The two are only weakly connected at the cutting line.

[0025] The die-cut composite material enters the waste discharge channel composed of C-shaped plates 6. First, the material passes through the static elimination mechanism. Two sets of static rollers 21 roll in contact with the surface of the insulating film waste of the insulating film body 5, effectively neutralizing the static charge generated on the surface of the insulating film body 5 due to high-speed friction and cutting, eliminating the electrostatic attraction between the waste and the product, creating the prerequisite for subsequent physical peeling, and preventing the waste from sticking to the product due to static electricity.

[0026] Subsequently, the material moves under the guide roller 27 and air knife 24. As the composite material passes around the guide roller 27, its path is forcibly changed. Under the bending action of the guide roller 27, the insulating film waste frame generates an upward turning tendency. The waste roller 10 winds up the waste. Since the release film 4 is supported by the support roller 7 below and keeps moving horizontally, while the waste frame tries to tilt upward, this creates an initial tiny peel gap between the waste and the product at the cutting line. At the same time, the air knife 24 blows high-pressure gas from the air supply pipe 26 at an inclined angle precisely towards the initial gap that has been generated. The high-pressure airflow blows towards the separation point between the waste and the product, and expands the separation area between the waste and the product. The airflow pressure acts directly on the back of the waste, pushing the waste away from the product surface. The mesh waste that has been successfully peeled off and lifted by the air knife 24 then enters the traction and winding stage.

[0027] The connecting spike wheel 18 of the material guiding mechanism rotates under the drive of the drive motor 17. The needle teeth on its surface pierce into the waste material of the insulating film body 5, providing an active and controllable traction force. This force works in conjunction with the pulling force of the winding mechanism to ensure that the waste material can move smoothly along the preset path after leaving the stripping point, preventing it from swaying or stopping in the air. The collecting motor 11 is driven by the drive belt 13 and the drive wheel 12 to drive the waste roller 10 to rotate, and tightly and neatly wind up the completely peeled mesh insulating film waste onto the roller.

[0028] As the waste is peeled off and carried upwards, the release film 4, carrying the intact insulating film product, continues to move horizontally and wraps around the collection roller 15. The collection roller 15 is driven by an independent connecting motor, which collects the die-cut products attached to the release film 4 in a roll form, which facilitates transportation, storage and subsequent film peeling and pasting operations on the automated assembly line.

Claims

1. A die-cutting machine for a new energy vehicle battery pack, comprising a base frame (1), characterized in that: The bottom frame (1) is connected to a die-cutting equipment (2) on one side of its upper end, and to a support roller (3) on the other side of its upper end. A release film (4) is connected above the support roller (3), and an insulating film body (5) is pasted above the release film (4). A C-shaped plate (6) is connected to the upper part of one side of the bottom frame (1). Support rollers (7) are rotatably connected to both sides of the inner wall of the C-shaped plate (6). The upper part of the support roller (7) contacts the upper part of the release film (4). A winding mechanism is connected to one side of the upper end of the C-shaped plate (6). The winding mechanism is used to wind up the waste insulating film body (5). A material guiding mechanism is connected to the lower part of one side of the winding mechanism. A peeling mechanism is connected to the upper part of the inner wall of the C-shaped plate (6). An electrostatic elimination mechanism is connected to one side of the C-shaped plate (6). The peeling mechanism includes a guide roller (27) and an air knife (24). The two ends of the guide roller (27) are rotatably connected to the two sides of the inner wall of the C-shaped plate (6). The guide roller (27) is located above the support roller (7). One side of the guide roller (27) is in contact with the upper side of the insulating film body (5).

2. The new energy vehicle battery pack die-cutting equipment according to claim 1, characterized in that: The winding mechanism includes a support rod (8), a rotating rod (9) is rotatably connected to one side of the support rod (8), one end of the rotating rod (9) extends through to one side of the support rod (8), one end of the rotating rod (9) is connected to a waste roller (10), a collecting motor (11) is connected to the middle of one side of the support rod (8), and drive wheels (12) are connected to the outer wall of the rotating rod (9) and the outer wall of the output end of the collecting motor (11). The two drive wheels (12) are connected by a drive belt (13). The outer wall of the waste roller (10) is wound and connected to one end of the insulating film body (5).

3. The new energy vehicle battery pack die-cutting equipment according to claim 1, characterized in that: The lower ends of the C-shaped plate (6) are connected to the connecting frames (14) on both sides. A collecting roller (15) is rotatably connected between the two connecting frames (14). A connecting motor is connected to one side of one of the connecting frames (14). The output end of the connecting motor extends through to one side of the corresponding connecting frame (14) and is connected to one end of the collecting roller (15). One end of the release film (4) is wrapped around the outer wall of the collecting roller (15).

4. The new energy vehicle battery pack die-cutting equipment according to claim 1, characterized in that: The material guiding mechanism includes a fixed plate (16), a drive motor (17) is connected to one side of the fixed plate (16), the output end of the drive motor (17) extends through to one side of the fixed plate (16), and a connecting spike wheel (18) is connected to the output end of the drive motor (17), one side of the connecting spike wheel (18) contacts one side of the insulating film body (5).

5. The new energy vehicle battery pack die-cutting equipment according to claim 1, characterized in that: The air knife (24) is set in an inclined shape. The air knife (24) is located on one side of the guide roller (27) and above the support roller (7). The upper part of both ends of the air knife (24) is connected to an adjusting rod (25). One end of the adjusting rod (25) is rotatably connected to one side of the inner wall of the C-shaped plate (6). The other end of the adjusting rod (25) extends through to one side of the C-shaped plate (6) and is connected to a rotating handle. One side of the upper end of the air knife (24) is connected to an air supply pipe (26). One end of the air supply pipe (26) extends through to one side of the C-shaped plate (6). The middle part of the air supply pipe (26) is set as a flexible tube.

6. The new energy vehicle battery pack die-cutting equipment according to claim 1, characterized in that: The static elimination mechanism includes brackets (19), one end of each bracket (19) is connected to one side of a C-shaped plate (6), and mounting slots (20) are provided on both sides of the upper end of each bracket (19). Static rollers (21) are placed inside the two mounting slots (20) on the right and the two mounting slots (20) on the left. There are two sets of static rollers (21), and pressure plates (22) are connected to the upper end of each bracket (19).

7. A new energy vehicle battery pack die-cutting equipment according to claim 6, characterized in that: The two pressure plates (22) press the two ends of the two electrostatic rollers (21) respectively. The lower middle part of the two pressure plates (22) is connected to the locking block (23). The upper end of the two brackets (19) is provided with a locking groove corresponding to the locking block (23). The two locking blocks (23) are locked into the locking groove.

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