An aluminum plastic film punch pit mold for a polymer lithium ion battery

Abstract

The utility model relates to an aluminium plastic film pit -bumping mould for polymer lithium ion battery, including female die plate, unloading plate, male die, airbag male die and lower power mechanism, before starting pit -bumping operation to the aluminium plastic film of polymer lithium ion battery, female die plate and unloading plate are mutually separate, place the aluminium plastic film of polymer lithium ion battery to be pit -bumped on unloading plate, and there is the first vacuum air hole of adsorbing aluminium plastic film on unloading plate, then use female die plate to press the aluminium plastic film of polymer lithium ion battery to be pit -bumped, and adjust position to make male die and pit -bumping position correspond, female die plate moves down, stop when female die plate compresses unloading plate tightly, and the first vacuum air hole inhales and adsorbs aluminium plastic film, then start lower power mechanism to push male die and airbag male die to rise at even speed and pit -bump the aluminium plastic film of polymer lithium ion battery, first adsorb aluminium plastic film and carry out punching, can avoid the displacement of aluminium plastic film in the punching process.

Description

Technical Field

[0001] This utility model belongs to the field of aluminum-plastic film punching mold technology, specifically relating to an aluminum-plastic film punching mold for polymer lithium-ion batteries. Background Technology

[0002] Currently, aluminum-plastic film punching dies typically place the aluminum-plastic film between a concave die and a stripper plate. The concave die is then driven downwards to fit against the stripper plate, thus clamping the aluminum-plastic film. A lower drive mechanism then drives a punch to pass through the stripper plate and move upwards to punch holes in the aluminum-plastic film. However, because the aluminum-plastic film is only clamped by the stripper plate and the concave die, due to machining accuracy issues, a perfect fit cannot be guaranteed after the stripper plate and concave die are fitted together. Therefore, during the punching process, the aluminum-plastic film may experience slight displacement, leading to defective punched aluminum-plastic film. In view of this, this solution was developed. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide an aluminum-plastic film punching mold for polymer lithium-ion batteries, which can adsorb the aluminum-plastic film during the punching process.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an aluminum-plastic film punching mold for polymer lithium-ion batteries, including a concave template, a stripper plate, a punch, an air bag punch, and a lower power mechanism. The concave template is located above and corresponding to the punch. The air bag punch is installed on one side of the punch. The stripper plate has a first through hole and a second through hole. The stripper plate is sleeved on the punch. The punch is located in the first through hole, and the air bag punch is located in the second through hole. A first vacuum hole is formed on the stripper plate. The lower power mechanism is used to drive the punch and the air bag punch to move toward the concave template.

[0005] Furthermore, a second vacuum hole is formed on the upper surface of the punch and the upper surface of the air bag punch.

[0006] Furthermore, the punching die also includes a punch fixing plate, and the punch and the air bag punch are mounted on the upper surface of the punch fixing plate.

[0007] Furthermore, the punch fixing plate has a third through hole, and a steel ball bushing is installed in the third through hole.

[0008] Furthermore, the upper surface of the punch fixing plate is provided with equal-height screws and limit blocks.

[0009] Furthermore, a servo connecting block is provided on the lower surface of the punch fixing plate, and the output end of the lower power mechanism is connected to the servo connecting block.

[0010] Furthermore, the equalizing screw is screwed into the lower surface of the punch fixing plate and extends out of the upper surface of the punch fixing plate, and a spring rubber washer is provided between the head of the equalizing screw and the lower surface of the punch fixing plate.

[0011] Furthermore, a guide post is provided on the lower surface of the unloading plate, and the guide post is adapted to the steel ball bushing.

[0012] Furthermore, the punching die also includes a lower die base, the lower die base having a mounting hole in the middle, and the punch fixing plate being installed in the mounting hole.

[0013] Furthermore, locking modules are provided on both sides of the unloading plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. Before the punching operation on the aluminum-plastic film of the polymer lithium-ion battery begins, the die plate and the stripper plate are separate. The aluminum-plastic film of the polymer lithium-ion battery to be punched is placed on the stripper plate, which has a first vacuum hole for adsorbing the aluminum-plastic film. The die plate is then used to press the aluminum-plastic film of the polymer lithium-ion battery to be punched, and the position is adjusted so that the punch and the punching position correspond. The die plate moves downward. When the die plate stops pressing the stripper plate, the first vacuum hole draws in air to adsorb the aluminum-plastic film. Then the lower power mechanism is started to push the punch and the air bag punch to rise at a uniform speed to punch the aluminum-plastic film of the polymer lithium-ion battery. When the aluminum-plastic mold is formed to the required depth, the power mechanism stops punching. Adsorbing the aluminum-plastic film first and then punching can avoid the displacement of the aluminum-plastic film during the punching process.

[0016] 2. A second vacuum hole is provided on the upper surface of the punch and the air bag punch. When the punching is finished, the second vacuum hole sucks in air to hold the aluminum-plastic film at the punching position, preventing the punched aluminum-plastic film from being pulled up when the die plate and the stripper plate separate. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the concave template in this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the unloading plate in this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the punch and punch fixing plate in this utility model;

[0021] Figure 5 This is a bottom view of the punch and punch fixing plate in this utility model.

[0022] Figure 6 This is a three-dimensional structural diagram of the lower mold base in this utility model.

[0023] The markings in the diagram are as follows: 1. Concave template; 11. Connecting block; 12. Third through hole; 3. Fourth through hole; 2. Unloading plate; 21. Guide post; 22. First vacuum hole; 221. Vacuum passage; 222. Air inlet connector; 23. First through hole; 24. Second through hole; 25. Locking module; 3. Punch; 31. Air bag punch; 4. Punch fixing plate; 41. Equal height screw; 411. Spring rubber washer; 42. Limit block; 43. Steel ball bushing; 44. Servo connecting block; 5. Lower mold base; 51. Lower left mold base; 52. Upper left mold base; 53. Front mold base; 54. Rear mold base; 55. Lower right mold base; 56. Upper right mold base; 57. Mounting hole; 6. Second vacuum hole. Detailed Implementation

[0024] To make the above-mentioned features and advantages of this utility model more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings for detailed explanation.

[0025] like Figures 1-6 As shown, this embodiment provides an aluminum-plastic film punching mold for polymer lithium-ion batteries, including a concave template 1, a stripper plate 2, a punch 3, a punch fixing plate 4, a lower mold base 5, an air bag punch 31, and a lower drive mechanism.

[0026] The lower mold base 5 has a mounting hole 57 formed in the middle. Specifically, the lower mold base 5 is composed of a lower left mold base 51, an upper left mold base 52, a front mold base 53, a rear mold base 54, a lower right mold base 55, and an upper right mold base 56. The lower left mold base 51 and the lower right mold base 55 are U-shaped and are arranged opposite each other with their openings facing each other. The front mold base 53 and the rear mold base 54 are respectively installed in front of the lower left mold base 51 and the lower right mold base 55. The upper left mold base 52 is installed on the upper surface of the lower left mold base 51, and the upper right mold base 56 is installed on the upper surface of the lower right mold base 55. The upper left mold base 52, the front mold base 53, the rear mold base 54, and the upper right mold base 56 surround each other to form the mounting hole 57.

[0027] The punch fixing plate 4 is installed in the mounting hole 57. The punch 3 and the air bag punch 31 are installed on the upper surface of the punch fixing plate 4. The punch fixing plate 4 has four matrix-arranged third through holes 12. A steel ball bushing 43 is installed in the third through hole 12. The upper surface of the punch fixing plate 4 is provided with equal height screws 41 and limit blocks 42. There are two equal height screws 41, which are arranged diagonally. There are two limit blocks 42, which are located on both sides of the punch 3.

[0028] Preferably, the equalizing screw 41 is screwed into the lower surface of the punch fixing plate 4 and extends out of the upper surface of the punch fixing plate 4, and a spring rubber washer 411 is provided between the head of the equalizing screw 41 and the lower surface of the punch fixing plate 4.

[0029] The lower surface of the punch fixing plate 4 is provided with a servo connecting block 44. The output end of the lower power mechanism is connected to the servo connecting block 44. The lower power mechanism adopts common telescopic devices on the market, such as hydraulic cylinders and servo motors.

[0030] The punch 3 and the air bag punch 31 are installed on the upper surface of the punch fixing plate 4. The two air bag punches 31 are installed on one side of the punch 3. The unloading plate 2 has a first through hole 23 and a second through hole 24. The unloading plate 2 is sleeved on the punch 3. The punch 3 is located in the first through hole 23 and the air bag punch 31 is located in the second through hole 24. Specifically, four guide posts 21 are provided on the lower surface of the unloading plate 2. The guide posts 21 are adapted to the steel ball bushing 43. A first vacuum hole 22 is formed on the unloading plate 2. A vacuum channel 221 is formed on the side wall of the unloading plate 2. The vacuum channel 221 is connected to the first vacuum hole 22. An air inlet connector 222 is provided at the lateral opening of the vacuum channel 221. The number and position of the first vacuum hole 22 and the vacuum channel 221 are set according to the punching position of the aluminum-plastic film.

[0031] Preferably, locking modules 25 are provided on both sides of the unloading plate 2.

[0032] A second vacuum hole 6 is formed on the upper surface of the punch 3 and the upper surface of the air bag punch 31. When the punching is finished, the second vacuum hole 6 draws air to hold the aluminum-plastic film at the punching position, preventing the punched aluminum-plastic film from being pulled up when the die plate 1 and the stripper plate 2 separate.

[0033] The concave template 1 is located above and corresponding to the punch 3. The concave template 1 has a third through hole 12 and a fourth through hole 3 corresponding to the first through hole 23 and the second through hole 24. Depending on the requirements, the third through hole 12 and the fourth through hole 3 can also be replaced with corresponding grooves to achieve the punching function. A connecting block 11 is provided on the upper surface of the concave template 1. The concave template 1 is driven by an upper drive mechanism, which can use existing telescopic structures such as hydraulic cylinders or servo motors.

[0034] Working principle: Before the punching operation on the aluminum-plastic film of the polymer lithium-ion battery begins, the concave template 1 and the stripper plate 2 are separate. The aluminum-plastic film of the polymer lithium-ion battery to be punched is placed on the stripper plate 2. The stripper plate 2 has a first vacuum hole 22 for adsorbing the aluminum-plastic film. Then, the concave template 1 is used to press the aluminum-plastic film of the polymer lithium-ion battery to be punched, and the position is adjusted so that the punch 3 and the punching position correspond. The concave template 1 moves downward. When the concave template 1 presses the stripper plate 2 tightly and stops, the first vacuum hole 22 draws in air and adsorbs the aluminum-plastic film. Then, the power mechanism is restarted to push the punch 3 and the air bag punch 31 to rise at a uniform speed to punch the aluminum-plastic film of the polymer lithium-ion battery. When the aluminum-plastic mold is formed to the required depth, the power mechanism stops punching. The aluminum-plastic film is first adsorbed before punching, which can avoid the displacement of the aluminum-plastic film during the punching process. When the punching is finished, the second vacuum hole 6 draws air to hold the aluminum-plastic film at the punching position. The concave plate 1 moves upward and the concave plate 1 and the unloading plate 2 are separated. Then the punched aluminum-plastic film of the polymer lithium-ion battery is transferred to the next process.

[0035] The foregoing has shown and described the basic principles and main features of this invention, as well as its advantages. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications can be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A punching die for an aluminum-plastic film used in polymer lithium-ion batteries, characterized in that: The device includes a concave template, a stripper plate, a punch, an air bag punch, and a lower power mechanism. The concave template is located above and opposite the punch. The air bag punch is installed on one side of the punch. The stripper plate has a first through hole and a second through hole. The stripper plate is sleeved on the punch. The punch is located in the first through hole, and the air bag punch is located in the second through hole. The stripper plate also has a first vacuum hole. The lower power mechanism is used to drive the punch and the air bag punch to move toward the concave template.

2. The aluminum-plastic film punching mold for polymer lithium-ion batteries according to claim 1, characterized in that: The upper surface of the punch and the upper surface of the air bag punch are formed with a second vacuum hole.

3. The aluminum-plastic film punching mold for polymer lithium-ion batteries according to claim 1, characterized in that: The punching die also includes a punch fixing plate, and the punch and air bag punch are mounted on the upper surface of the punch fixing plate.

4. A punching die for an aluminum-plastic film in polymer lithium-ion battery according to claim 3, characterized in that: The punch fixing plate has a third through hole, and a steel ball bushing is installed in the third through hole.

5. A punching die for an aluminum-plastic film in a polymer lithium-ion battery according to claim 3, characterized in that: The upper surface of the punch fixing plate is provided with equal-height screws and limit blocks.

6. A punching die for an aluminum-plastic film in a polymer lithium-ion battery according to claim 3, characterized in that: A servo connection block is provided on the lower surface of the punch fixing plate, and the output end of the lower power mechanism is connected to the servo connection block.

7. A punching die for an aluminum-plastic film in a polymer lithium-ion battery according to claim 5, characterized in that: The equalizing screw is screwed into the lower surface of the punch fixing plate and extends out of the upper surface of the punch fixing plate. A spring rubber washer is provided between the head of the equalizing screw and the lower surface of the punch fixing plate.

8. A punching die for an aluminum-plastic film in polymer lithium-ion battery according to claim 3, characterized in that: The lower surface of the unloading plate is provided with guide posts, which are adapted to the steel ball bushing.

9. A punching die for an aluminum-plastic film in polymer lithium-ion battery according to claim 3, characterized in that: The punching mold also includes a lower mold base, with a mounting hole formed in the middle of the lower mold base, and the punch fixing plate is installed in the mounting hole.

10. A punching die for an aluminum-plastic film in polymer lithium-ion battery according to claim 1, characterized in that: Locking modules are provided on both sides of the unloading plate.

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