Film punching mechanism

Abstract

The utility model discloses a film punching mechanism which comprises a rack, a linear conveying device and a plurality of punching assemblies, the linear conveying device and the punching assemblies are arranged on the rack, the punching assemblies are arranged on the side of the linear conveying device, each punching assembly comprises a support, a lifting driving piece, an upper die and a lower die, and the lifting driving pieces, the upper dies and the lower dies are installed on the supports. The lifting driving piece is used for driving the upper die to be close to or away from the lower die, and at least one shearing part is arranged on the face, close to the lower die, of the upper die. According to the film punching mechanism, the multiple punching assemblies are arranged on the side of the linear conveying device, the multiple punching assemblies are made to punch part of fillet structures on the same battery film through the shearing parts correspondingly, the situation that an upper die of each punching assembly bears too large force and then slightly deviates can be effectively avoided, the size precision of the punched battery film can be improved, and the production efficiency of the battery film is improved. And the product yield of the battery is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of punching devices, in particular to a punching die mechanism. Background Art

[0002] During the production of battery diaphragms, it is necessary to use a blanking die to punch out rounded corners at the corners of the battery diaphragms. In the prior art, usually a blanking die is used to punch out multiple rounded corner structures of the battery diaphragm simultaneously. The blanking die needs to apply a relatively large pressure to the battery diaphragm, resulting in a slight deviation of the blanking die due to the force, and further making it difficult to ensure the dimensional accuracy of the rounded corner structure of the battery diaphragm, which is not conducive to improving the product yield. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a punching die mechanism with high dimensional accuracy.

[0004] To solve the above technical problem, the technical solution adopted by the utility model is: a punching die mechanism, including a frame, a linear conveying device and a plurality of blanking components arranged on the frame. The plurality of blanking components are arranged on the side of the linear conveying device. The blanking component includes a bracket, a lifting driving member, an upper die and a lower die installed on the bracket. The lifting driving member is used to drive the upper die to approach or separate from the lower die. At least one shearing part is arranged on the surface of the upper die close to the lower die.

[0005] Further, the lifting driving member is a cylinder.

[0006] Further, a guiding column is also arranged on the lower die, and a guiding hole cooperating with the guiding column is arranged on the upper die.

[0007] Further, a limiting member is arranged on the guiding column, and the limiting member is used to prevent the upper die from separating from the guiding column.

[0008] Further, the blanking component further includes an elastic member, and the elastic member is arranged between the upper die and the lower die.

[0009] Further, the elastic member is a spring, a spring piece or a spring washer.

[0010] Further, the elastic member is sleeved on the guiding column.

[0011] Further, a first slide rail and a first translation driving assembly are also arranged on the frame. The length direction of the first slide rail is perpendicular to the conveying direction of the linear conveying device. The bracket is slidably matched with the first slide rail, and the first translation driving assembly is used to drive the bracket to move along the first slide rail.

[0012] Further, a second slide rail and a second translation driving assembly are further provided on the rack. The length direction of the second slide rail is parallel to the conveying direction of the linear conveying device. The bracket is slidably engaged with the second slide rail, and the second translation driving assembly is used to drive the bracket to move along the second slide rail.

[0013] Further, a locking member is further included, and the locking member is used to lock the relative position relationship between the bracket and the linear conveying device.

[0014] The beneficial effects of the present utility model are as follows: By arranging a plurality of punching components on the side of the linear conveying device, the present punching film mechanism enables the plurality of punching components to respectively punch out partial rounded corner structures on the same battery film through the shearing parts, which can effectively prevent the upper die of the punching component from being subjected to excessive force and slightly shifting, is beneficial to improving the dimensional accuracy of the battery film after punching, and improving the product yield of the battery. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall structure of the punching film mechanism according to Embodiment 1 of the present utility model;

[0016] Figure 2 is Figure 1 a detailed enlarged view of part A in

[0017] Figure 3 It is a schematic diagram of the structure of the punching component in the punching film mechanism according to Embodiment 1 of the present utility model.

[0018] Label Description:

[0019] 1. Rack; 11. First slide rail; 12. Second slide rail;

[0020] 2. Linear conveying device;

[0021] 3. Punching component;

[0022] 31. Bracket;

[0023] 32. Lifting driving member;

[0024] 33. Upper die; 331. Shearing part; 332. Guide hole;

[0025] 34. Lower die; 341. Guide post; 342. Limiting member;

[0026] 35. Elastic member;

[0027] 36. Locking member;

[0028] 4. First translation driving assembly;

[0029] 5. Second translation driving assembly. Detailed Embodiment

[0030] To describe the technical content, achieved objectives and effects of the present utility model in detail, the following will be described in conjunction with the embodiments and with reference to the accompanying drawings.

[0031] Please refer to Figures 1 to 3 , a punching die mechanism, including a frame 1, a linear conveying device 2 provided on the frame 1, and a plurality of punching components 3. The plurality of punching components 3 are provided on the side of the linear conveying device 2. The punching component 3 includes a bracket 31, a lifting driving member 32, an upper die 33 and a lower die 34 mounted on the bracket 31. The lifting driving member 32 is used to drive the upper die 33 to approach or move away from the lower die 34. At least one shearing portion 331 is provided on the surface of the upper die 33 facing the lower die 34.

[0032] As can be seen from the above description, the beneficial effect of the present utility model is that: by arranging a plurality of punching components 3 on the side of the linear conveying device 2, the plurality of punching components 3 respectively punch out partial rounded corner structures on the same battery film through the shearing portion 331, which can effectively prevent the upper die 33 of the punching component 3 from being slightly displaced due to excessive force, is beneficial to improving the dimensional accuracy of the battery film after punching, and improving the product yield of the battery.

[0033] Furthermore, the lifting driving member 32 is a cylinder.

[0034] Furthermore, a guiding column 341 is further provided on the lower die 34, and a guiding hole 332 cooperating with the guiding column 341 is provided on the upper die 33.

[0035] As can be seen from the above description, the guiding column 341 can play a guiding role for the upper die 33, and further improve the dimensional accuracy of the battery film after punching.

[0036] Furthermore, a limiting member 342 is provided on the guiding column 341, and the limiting member 342 is used to prevent the upper die 33 from disengaging from the guiding column 341.

[0037] Furthermore, the punching component 3 further includes an elastic member 35, and the elastic member 35 is provided between the upper die 33 and the lower die 34.

[0038] As can be seen from the above description, the elastic member 35 can drive the upper die 33 to move and reset in a direction away from the lower die 34.

[0039] Furthermore, the elastic member 35 is a spring, a shrapnel or a spring washer.

[0040] As can be seen from the above description, the type of the elastic member 35 can be selected according to actual use needs or production conditions.

[0041] Further, the elastic member 35 is sleeved on the guide post 341.

[0042] As can be seen from the above description, sleeving the elastic member 35 on the guide post 341 can limit the elastic member 35.

[0043] Further, a first slide rail 11 and a first translation driving assembly 4 are further provided on the frame 1. The length direction of the first slide rail 11 is perpendicular to the conveying direction of the linear conveying device 2. The bracket 31 is slidably matched with the first slide rail 11. The first translation driving assembly 4 is used to drive the bracket 31 to move along the first slide rail 11.

[0044] As can be seen from the above description, the staff can adjust the relative position between the upper die 33 and the battery diaphragm on the linear conveying device 2 through the first translation driving assembly 4, so that the shearing portion 331 of the upper die 33 is aligned with the blanking position of the battery diaphragm.

[0045] Further, a second slide rail 12 and a second translation driving assembly 5 are further provided on the frame 1. The length direction of the second slide rail 12 is parallel to the conveying direction of the linear conveying device 2. The bracket 31 is slidably matched with the second slide rail 12. The second translation driving assembly 5 is used to drive the bracket 31 to move along the second slide rail 12.

[0046] As can be seen from the above description, the staff can adjust the relative position between the upper die 33 and the battery diaphragm on the linear conveying device 2 through the second translation driving assembly 5, so that the shearing portion 331 of the upper die 33 is aligned with the blanking position of the battery diaphragm.

[0047] Further, a locking member 36 is further included. The locking member 36 is used to lock the relative position relationship between the bracket 31 and the linear conveying device 2.

[0048] As can be seen from the above description, the locking member 36 can prevent the punching assembly 3 from shifting in position relative to the frame 1, resulting in the shearing portion 331 not being aligned with the blanking position of the battery diaphragm.

[0049] Please refer to Figures 1 to 3, Embodiment 1 of the present utility model is: A punching die mechanism, including a frame 1, a linear conveying device 2 and a plurality of punching components 3 arranged on the frame 1. The plurality of punching components 3 are arranged on the side of the linear conveying device 2. The punching component 3 includes a bracket 31, a lifting driving member 32, an upper die 33 and a lower die 34 mounted on the bracket 31. The lifting driving member 32 is used to drive the upper die 33 to approach or move away from the lower die 34. At least one shearing portion 331 is provided on the surface of the upper die 33 facing the lower die 34. In this embodiment, the linear conveying device 2 is a belt conveyor. A punching mechanism is provided on each side of the linear conveying device 2. The lifting driving member 32 is a cylinder. The shearing portion 331 can be set as a cutting tool or the arc-shaped edge of a notch opened on the upper die 33.

[0050] In order to further improve the dimensional accuracy of the battery diaphragm after punching. A guiding column 341 is further provided on the lower die 34, and a guiding hole 332 cooperating with the guiding column 341 is provided on the upper die 33. In this embodiment, the guiding column 341 is cylindrical, and the number of guiding columns 341 is four. In other embodiments, the guiding column 341 can be set as a prismatic shape, and the number of guiding columns 341 can be set as one, two, three or more.

[0051] The punching component 3 further includes an elastic member 35, and the elastic member 35 is arranged between the upper die 33 and the lower die 34. In this embodiment, the elastic member 35 is a spring, and the elastic member 35 is sleeved on the guiding column 341. The elastic member 35 is used to drive the upper die 33 to move and reset in the direction away from the lower die 34. In other embodiments, the elastic member 35 can be set as a spring piece or a spring pad.

[0052] A limiting member 342 is provided on the guiding column 341, and the limiting member 342 is used to prevent the upper die 33 from disengaging from the guiding column 341. Specifically, an external thread portion is provided on the limiting member 342, and a threaded hole cooperating with the limiting member 342 is opened on the top surface of the guiding column 341. The maximum width of the limiting member 342 is greater than the inner diameter of the guiding hole 332. The guiding column 341 and the limiting member 342 are arranged in one-to-one correspondence.

[0053] A first slide rail 11 and a first translation driving assembly 4 are further provided on the frame 1. The length direction of the first slide rail 11 is perpendicular to the conveying direction of the linear conveying device 2. The bracket 31 is slidably matched with the first slide rail 11, and the first translation driving assembly 4 is used to drive the bracket 31 to move along the first slide rail 11. Specifically, the number of the first slide rails 11 is two. The first translation driving assembly 4 is a screw rod and a slide table cooperating with the screw rod. The bracket 31 is fixedly connected with the slide table. A turntable for driving the screw rod to rotate is further provided at the end of the screw rod. In other embodiments, the first translation driving assembly 4 can be set as a linear module.

[0054] The punching die mechanism further includes a locking member 36 for locking the relative position relationship between the bracket 31 and the linear conveying device 2. Specifically, the locking member 36 is preferably a bolt. The first bracket 31 is provided with a long hole for the locking member 36 to pass through, and the mounting plate is provided with a plurality of first threaded holes cooperating with the locking member 36. The plurality of first threaded holes are arranged along a first direction perpendicular to the conveying direction of the linear conveying device 2. By making the locking member 36 cooperate and connect with different first threaded holes, the relative position between the punching assembly 3 and the linear conveying device 2 in the first direction can be changed.

[0055] The machine frame 1 is further provided with a second slide rail 12 and a second translation driving assembly 5. The length direction of the second slide rail 12 is parallel to the conveying direction of the linear conveying device 2. The bracket 31 is slidably engaged with the second slide rail 12, and the second translation driving assembly 5 is used to drive the bracket 31 to move along the second slide rail 12. Specifically, the number of the second slide rails 12 is two. The two punching assemblies 3 and the two first slide rails 11 are both arranged on a mounting plate, and the mounting plate is slidably engaged with the second slide rail 12. The second translation driving assembly 5 is a screw rod and a slide table cooperating with the screw rod. The bracket 31 is fixedly connected with the slide table. The end of the screw rod is further provided with a turntable for driving the screw rod to rotate. In other embodiments, the second translation driving assembly 5 can be set as a linear module. The mounting plate is provided with a long hole for the locking member 36 to pass through, and the machine frame 1 is provided with a plurality of second threaded holes cooperating with the locking member 36. The plurality of second threaded holes are arranged along a second direction parallel to the conveying direction of the linear conveying device 2. By making the locking member 36 cooperate and connect with different second threaded holes, the relative position between the punching assembly 3 and the linear conveying device 2 in the second direction can be changed.

[0056] In summary, the punching die mechanism provided by the present invention sets a plurality of punching assemblies on the side of the linear conveying device, and makes the plurality of punching assemblies respectively punch out partial rounded corner structures on the same battery film through the shearing parts, which can effectively avoid the small offset caused by excessive force on the upper die of the punching assembly, is beneficial to improving the dimensional accuracy of the battery film after punching, and enhancing the product yield of the battery.

[0057] The above are only the embodiments of the present invention, and thus do not limit the patent scope of the present invention. Any equivalent transformation made by using the specification and drawings of the present invention, or directly or indirectly applied in the related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A punching die mechanism, characterized in that: It includes a frame, a linear conveying device and a plurality of blanking components arranged on the frame. The plurality of blanking components are arranged on the side of the linear conveying device. The blanking component includes a bracket, a lifting driving member, an upper die and a lower die mounted on the bracket. The lifting driving member is used to drive the upper die to approach or move away from the lower die. At least one shearing part is provided on the surface of the upper die facing the lower die.

2. The punching die mechanism according to claim 1, wherein: The lifting driving member is a cylinder.

3. A punching die mechanism according to claim 1, characterized in that: Guide columns are further provided on the lower die, and guide holes cooperating with the guide columns are provided on the upper die.

4. The punching die mechanism according to claim 3, wherein: Limit members are provided on the guide columns, and the limit members are used to prevent the upper die from disengaging from the guide columns.

5. A punching die mechanism according to claim 3, characterized in that: The blanking component further includes an elastic member, and the elastic member is arranged between the upper die and the lower die.

6. The punching die mechanism according to claim 5, wherein: The elastic member is a spring, a shrapnel or a spring washer.

7. The punching die mechanism according to claim 5, characterized in that: The elastic member is sleeved on the guide column.

8. The punching die mechanism according to claim 1, characterized in that: A first slide rail and a first translation driving assembly are further provided on the frame. The length direction of the first slide rail is perpendicular to the conveying direction of the linear conveying device. The bracket is slidably matched with the first slide rail, and the first translation driving assembly is used to drive the bracket to move along the first slide rail.

9. The punching die mechanism according to claim 1, characterized in that: A second slide rail and a second translation driving assembly are further provided on the frame. The length direction of the second slide rail is parallel to the conveying direction of the linear conveying device. The bracket is slidably matched with the second slide rail, and the second translation driving assembly is used to drive the bracket to move along the second slide rail.

10. A punching die mechanism according to any one of claims 8 or 9, characterized in that: It further includes a locking member, and the locking member is used to lock the relative position relationship between the bracket and the linear conveying device.

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