Tab film blanking mechanism

Abstract

The utility model belongs to the technical field of battery manufacturing equipment, and particularly relates to a tab film blanking mechanism which comprises a blanking driving part, a blanking knife and a blanking seat, and the blanking seat is provided with a blanking groove matched with the blanking knife; the blanking driving part is connected with the blanking knife and is used for driving the blanking knife to be inserted into the blanking groove so as to cut off the tab film; a first blowing hole used for blowing air to the blanking groove is formed in the blanking knife, and a second blowing hole and an air suction hole are formed in the two opposite side walls of the blanking groove correspondingly. According to the tab film blanking mechanism, the second air blowing hole can blow scraps, adhesive residues and the like in the blanking groove to the air suction hole, and the air suction hole can suck away the scraps, the adhesive residues and the like in the blanking groove, so that the cleanliness of the tab film blanking mechanism is guaranteed, and the quality of tabs is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery manufacturing equipment, and particularly relates to an ear film blanking mechanism. Background Art

[0002] With the rapid development of the new energy industry, energy-saving and environment-friendly electric vehicles are an inevitable trend of social development, and lithium-ion power batteries are widely used in electric vehicles. A lithium-ion battery generally includes a battery housing and a positive electrode material, a negative electrode material, a separator and an electrolyte disposed in the battery housing. The separator is disposed between the positive electrode material and the negative electrode material. The positive electrode material needs to use a positive ear to lead out the positive end of the battery, and the negative electrode material needs to use a negative ear to lead out the negative end of the battery. The ear is formed by the composite of two parts, a film and a metal strip. The film is the insulating part of the ear, which prevents a short circuit accident between the metal strip and the battery housing during battery packaging.

[0003] During the manufacturing process of lithium-ion batteries, it is necessary to cut the film on the metal strip so that a plurality of ears integrated together become independent individuals. In the prior art, during the process of cutting the film by the ear blanking mechanism, chip suction will adhere to the metal strip or the film, thereby affecting the quality of the ear. Summary of the Utility Model

[0004] Aiming at the technical problem that chip suction will adhere to the metal strip or the film during the process of cutting the film by the ear blanking mechanism in the prior art, the utility model provides an ear film blanking mechanism.

[0005] In view of the above technical problems, the first embodiment of the utility model provides an ear film blanking mechanism, which includes a blanking driving member, a blanking knife and a blanking seat. A blanking groove adapted to the blanking knife is provided on the blanking seat; the blanking driving member is connected to the blanking knife and is used to drive the blanking knife to insert into the blanking groove to cut off the ear film.

[0006] A first air blowing hole for blowing air into the blanking groove is provided on the blanking knife, and a second air blowing hole and a suction hole are respectively provided on opposite side walls of the blanking groove.

[0007] Optionally, the ear film blanking mechanism further includes a support assembly, which includes a jacking driving member and a top block connected to the jacking driving member. The jacking driving member is used to drive the top block to abut against or separate from one end of the blanking seat away from the blanking knife.

[0008] Optionally, the ear film blanking mechanism further includes a support frame. The blanking driving member and the blanking seat are both fixedly installed on the support frame, and the blanking knife is slidably installed on the support frame.

[0009] Optionally, the tab film blanking mechanism further includes a guide rail mounted on the support frame and a slider mounted on the blanking knife, and the slider is slidably connected to the guide rail.

[0010] Optionally, the tab film blanking mechanism further includes a first seat body and a second seat body provided with a plug hole. The slider is mounted on the first seat body, and the output end of the blanking driving member is connected to the first seat body;

[0011] The blanking knife is mounted in the plug hole, and the second seat body is detachably mounted on the first seat body; a gas passage communicating with the first air blowing hole is provided on the first seat body.

[0012] Optionally, the blanking seat includes a base and a knife seat detachably mounted on the base; the blanking groove includes a blanking through hole provided on the knife seat and a dust storage groove provided on the base; the blanking through hole communicates with the dust storage groove, and the second air blowing hole and the suction hole are respectively provided on opposite inner side walls of the dust storage groove.

[0013] Optionally, an adsorption hole is further provided on the blanking seat, and the adsorption hole is used for adsorbing the tab metal strip with the tab film attached thereto.

[0014] Optionally, a guide hole is further provided on the blanking seat, and a guiding portion slidably inserted into the guide hole is provided on the blanking knife.

[0015] In the present utility model, the tab film is transferred to the blanking seat, the blanking driving member drives the blanking knife to insert into the blanking groove, and the blanking knife can cut the tab film on the blanking seat. And during the process of the blanking knife blanking the tab film, the first air blowing hole on the blanking knife can blow waste chips, residual glue, etc. generated during the cutting process of the tab film into the blanking groove, thereby avoiding waste chips, residual glue, etc. from adhering to the tab, and ensuring the quality of the tab. In addition, the second air blowing hole can blow the waste chips, residual glue, etc. in the blanking groove towards the suction hole, and the suction hole can suck away the waste chips, residual glue, etc. in the blanking groove, thereby ensuring the cleanliness of the tab film blanking mechanism and further improving the quality of the tab. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present utility model will be further described below with reference to the drawings and embodiments.

[0017] Figure 1 FIG. is a schematic structural diagram of a tab film blanking mechanism provided by an embodiment of the present utility model;

[0018] Figure 2 FIG. is a partial structural diagram of a tab film blanking mechanism provided by an embodiment of the present utility model;

[0019] Figure 3 It is a schematic structural diagram of a punching knife of an ear tab film punching mechanism provided by an embodiment of the present utility model installed on a second seat body;

[0020] Figure 4 It is a schematic structural diagram of a tool holder of an ear tab film punching mechanism provided by an embodiment of the present utility model;

[0021] Figure 5 It is a schematic structural diagram of a base of an ear tab film punching mechanism provided by an embodiment of the present utility model.

[0022] The reference numerals in the specification are as follows:

[0023] 1. Punching driving member; 2. Punching knife; 21. First air blowing hole; 22. Guiding portion; 3. Punching seat; 31. Punching groove; 311. Punching through hole; 312. Dust storage groove; 32. Second air blowing hole; 33. Suction hole; 34. Base; 35. Tool holder; 36. Adsorption hole; 37. Guiding hole; 4. Support assembly; 41. Lifting driving member; 42. Jacking block; 5. Support frame; 51. Guide rail; 52. Slide block; 6. First seat body; 7. Second seat body; 71. Insertion hole; 8. Ear tab film; 9. Ear tab metal strip. Specific embodiments

[0024] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model more clearly understood, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0025] It should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "middle", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0026] Such as Figures 1 to 3As shown in the figure, a tab film blanking mechanism provided by an embodiment of the present utility model includes a blanking driving member 1, a blanking knife 2, and a blanking seat 3. A blanking groove 31 adapted to the blanking knife 2 is provided on the blanking seat 3. The blanking driving member 1 is connected to the blanking knife 2 and is used to drive the blanking knife 2 to insert into the blanking groove 31 to cut the tab film 8. It can be understood that the blanking driving member 1 includes but is not limited to a pneumatic cylinder, a hydraulic cylinder, a linear motor, a lead screw nut mechanism, etc. The blanking seat 3 is located below the blanking knife 2, and the blanking driving member 1 can drive the blanking knife 2 to insert into or withdraw from the blanking groove 31.

[0027] A first air blowing hole 21 for blowing air into the blanking groove 31 is provided on the blanking knife 2. Second air blowing holes 32 and air suction holes 33 are respectively provided on opposite side walls of the blanking groove 31. It can be understood that multiple first air blowing holes 21, second air blowing holes 32, and air suction holes 33 can be provided according to actual needs. The first air blowing hole 21 is provided directly above the blanking groove 31, and the second air blowing hole 32 and the air suction hole 33 can be respectively provided on the left and right sides of the blanking groove 31.

[0028] Specifically, the tab film 8 is transferred to the blanking seat 3, the blanking driving member 1 drives the blanking knife 2 to insert into the blanking groove 31, and the blanking knife 2 can cut the tab film 8 on the blanking seat 3. And during the process of the blanking knife 2 blanking the tab film 8, the first air blowing hole 21 on the blanking knife 2 can blow waste chips, residual glue, etc. generated during the cutting process of the tab film 8 into the blanking groove 31, thereby preventing waste chips, residual glue, etc. from adhering to the tab, and ensuring the quality of the tab. In addition, the second air blowing hole 32 can blow the waste chips, residual glue, etc. in the blanking groove 31 towards the air suction hole 33, and the air suction hole 33 can suck away the waste chips, residual glue, etc. in the blanking groove 31, thereby ensuring the cleanliness of the tab film blanking mechanism and further improving the quality of the tab.

[0029] In one embodiment, as Figure 1 shown, the tab film blanking mechanism further includes a support assembly 4. The support assembly 4 includes a jacking driving member 41 and a jacking block 42 connected to the jacking driving member 41. The jacking driving member 41 is used to drive the jacking block 42 to abut against or separate from one end of the blanking seat 3 away from the blanking knife 2. It can be understood that the jacking driving member 41 includes but is not limited to a linear motor, a pneumatic cylinder, a hydraulic cylinder, a lead screw nut mechanism, etc. The jacking block 42 is located below the blanking seat 3.

[0030] Specifically, before the blanking knife 2 punches the tab film 8 on the blanking seat 3, the lifting driving member 41 drives the top block 42 to be in low contact with the bottom of the blanking seat 3, thereby ensuring the stability of the blanking knife 2 punching the tab film 8 on the blanking seat 3.

[0031] In one embodiment, as Figure 1 shown, the tab film blanking mechanism further includes a support frame 5. The blanking driving member 1 and the blanking seat 3 are both fixedly installed on the support frame 5, and the blanking knife 2 is slidably installed on the support frame 5. It can be understood that the support frame 5 can play a role in supporting the blanking driving member 1, the blanking seat 3, and the blanking knife 2, facilitating the handling of the tab film blanking mechanism.

[0032] In one embodiment, as Figure 1 shown, the tab film blanking mechanism further includes a guide rail 51 installed on the support frame 5 and a slider 52 installed on the blanking knife 2. The slider 52 is slidably connected to the guide rail 51. It can be understood that the blanking knife 2 is slidably installed on the support frame 5 through the slider 52 and the guide rail 51.

[0033] Specifically, during the process of the blanking driving member 1 driving the blanking knife 2 to move, the blanking knife 2 slides along the guide rail 51 through the slider 52, thereby ensuring the stability of the movement of the blanking knife 2.

[0034] In one embodiment, as Figure 2 and Figure 3 shown, the tab film blanking mechanism further includes a first seat body 6 and a second seat body 7 provided with a plug hole 71. The slider 52 is installed on the first seat body 6, and the output end of the blanking driving member 1 is connected to the first seat body 6;

[0035] The blanking knife 2 is installed in the plug hole 71, and the second seat body 7 is detachably installed on the first seat body 6; a gas passage (not shown in the figure) communicating with the first air blowing hole 21 is provided on the first seat body 6. It can be understood that the second seat body 7 can be detachably installed on the first seat body 6 by screws, bolts, etc., and an external air pump, etc. is connected to the gas passage, so that the external air pump communicates with the first air blowing hole 21 through the gas passage.

[0036] In this embodiment, after removing the second seat body 7 from the first seat body 6, the blanking knife 2 on the second seat body 7 can be replaced, and the blanking knife 2 is installed on the first seat body 6 together with the second seat body 7. In this embodiment, the disassembly and assembly operation of the tab film blanking mechanism is simple, facilitating the replacement and maintenance of the blanking knife 2.

[0037] In one embodiment, as shown in Figure 2 , Figure 4 and Figure 5 , the blanking seat 3 includes a base 34 and a tool holder 35 detachably mounted on the base 34; the blanking groove 31 includes a blanking through hole 311 provided on the tool holder 35 and a dust storage groove 312 provided on the base 34; the blanking through hole 311 communicates with the dust storage groove 312, and the second air blowing hole 32 and the suction hole 33 are respectively provided on opposite inner side walls of the dust storage groove 312. It can be understood that the tool holder 35 can be detachably mounted on the base 34 by screws, bolts, etc., and the blanking through hole 311 is located above the dust storage groove 312; the blanking driving member 1 is used to drive the blanking knife 2 to insert into the blanking through hole 311 to cut off the tab film 8.

[0038] Specifically, the first air blowing hole 21 can blow waste chips, residual glue, etc. generated during the blanking process of the tab film 8 towards the blanking through hole 311, and the waste chips, residual glue, etc. fall into the dust storage groove 312 through the blanking through hole 311. The second air blowing hole 32 can blow the waste chips, residual glue, etc. in the dust storage groove 312 towards the suction hole 33, and the suction hole 33 can suck away the waste chips, residual glue, etc. in the dust storage groove 312, thus ensuring the cleanliness of the tab film blanking mechanism and further improving the quality of the tabs.

[0039] In one embodiment, as shown in Figure 1 and Figure 2 , the blanking seat 3 is further provided with an adsorption hole 36 for adsorbing the tab metal strip 9 adhered with the tab film 8. It can be understood that a plurality of adsorption holes 36 can be provided according to actual needs, and the adsorption holes 36 can adsorb the tab metal strip 9 on the blanking seat 3, thereby fixing the tab film 8 on the blanking seat 3. In this embodiment, the design of the adsorption hole 36 ensures the stability of the blanking knife 2 cutting the tab film 8 on the blanking seat 3.

[0040] In one embodiment, as shown in Figure 1 and Figure 2 , the blanking seat 3 is further provided with a guiding hole 37, and the blanking knife 2 is provided with a guiding portion 22 slidably inserted into the guiding hole 37. It can be understood that the guiding portion 22 is provided at the lower part of the blanking knife 2 and extends downward.

[0041] Specifically, during the process of the blanking driving member 1 driving the blanking knife 2 to move, the guiding portion 22 slides along the guiding hole 37, thereby ensuring the accuracy of the blanking knife 2 inserted into the blanking groove 31.

[0042] The above are only examples of the tab film blanking mechanism of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An ear tab film blanking mechanism, characterized in that, It includes a blanking driving part, a blanking knife and a blanking seat. A blanking groove adapted to the blanking knife is provided on the blanking seat; the blanking driving part is connected to the blanking knife and is used to drive the blanking knife to insert into the blanking groove to cut off the tab film. A first air blowing hole for blowing air into the blanking groove is provided on the blanking knife, and a second air blowing hole and a suction hole are respectively provided on opposite side walls of the blanking groove.

2. The tab film blanking mechanism according to claim 1, wherein, The tab film blanking mechanism further includes a support assembly, and the support assembly includes a jacking driving part and a jacking block connected to the jacking driving part. The jacking driving part is used to drive the jacking block to abut against or separate from one end of the blanking seat away from the blanking knife.

3. The tab film blanking mechanism according to claim 1, wherein The tab film blanking mechanism further includes a support frame. The blanking driving part and the blanking seat are both fixedly installed on the support frame, and the blanking knife is slidably installed on the support frame.

4. The tab film blanking mechanism according to claim 3, characterized in that, The tab film blanking mechanism further includes a guide rail installed on the support frame and a slider installed on the blanking knife. The slider is slidably connected to the guide rail.

5. The tab film blanking mechanism according to claim 4, characterized in that, The tab film blanking mechanism further includes a first seat body and a second seat body provided with a plugging hole. The slider is installed on the first seat body, and the output end of the blanking driving part is connected to the first seat body. The blanking knife is installed in the plugging hole, and the second seat body is detachably installed on the first seat body; a gas passage communicating with the first air blowing hole is provided on the first seat body.

6. The tab film blanking mechanism according to claim 1, characterized in that, The blanking seat includes a base and a knife seat detachably installed on the base; the blanking groove includes a blanking through hole provided on the knife seat and a dust storage groove provided on the base; the blanking through hole communicates with the dust storage groove, and the second air blowing hole and the suction hole are respectively provided on opposite inner side walls of the dust storage groove.

7. The tab film blanking mechanism according to claim 1, characterized in that, An adsorption hole is further provided on the blanking seat, and the adsorption hole is used to adsorb the tab metal strip with the tab film attached thereto.

8. The tab film blanking mechanism according to claim 1, characterized in that, A guiding hole is further provided on the blanking seat, and a guiding part slidably inserted into the guiding hole is provided on the blanking knife.

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