Die cutting device for lithium battery pole piece

Abstract

The utility model discloses a lithium battery pole piece die cutting device. The lithium battery pole piece die cutting device comprises a workbench, a pole piece feeding mechanism, a sliding table mechanism and a die cutting mechanism. The pole piece feeding mechanism comprises a pressing assembly and a tension roller assembly; the sliding table mechanism is provided with a vacuum adsorption platform and a pressing belt clamping and conveying assembly. The die cutting mechanism is provided with a protection assembly, and the protection assembly is detachably connected with the die cutting mechanism. According to the utility model, the tensioning roller assembly is used for tensioning a pole piece material, and the pressing assembly is cooperatively arranged for pressing the pole piece material; the sliding table mechanism is used for achieving the automatic feeding action of pole piece materials, the pressing belt clamping and conveying assembly is arranged in a combined mode for pressing and fixing, the feeding stability is guaranteed, and therefore the follow-up die cutting machining efficiency and quality are guaranteed; the protection assembly is used for preventing the die cutting plate from crushing the cutting die, and the follow-up die cutting quality and service life of the cutting die are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pole piece processing equipment, in particular to a lithium battery pole piece die-cutting device. Background Art

[0002] During the production process of lithium battery pole pieces, it is necessary to punch the battery pole pieces, and then cut and package the punched pole pieces. The punching device of the prior art requires manual removal of the pole pieces after punching, which is cumbersome to operate and has low processing efficiency. In response to the above problems, people invented patent number: CN202020544901.8, which discloses a punching device for lithium battery pole pieces, including a processing table, a punching module, and a winding module. The punching module includes a top plate and a punching head. An avoidance groove is provided in the middle of the upper end of the processing table. The avoidance groove is located directly below the punching head. A lifting and rolling module is fixed in the avoidance groove. A discharge groove is also provided on one side of the lifting and rolling module. The lifting and rolling module includes a first drive device, a second drive device, and a downward pressure pad fixed at the bottom of the avoidance groove. The lower ends of the downward pressure pads are respectively connected to a first mounting portion and a second mounting portion. The first mounting portion is rotatably connected to the output end of the first drive device, and the second mounting portion is rotatably connected to the output end of the second drive device. The lithium battery pole piece punching device of the utility model can automatically unload after punching, with a high degree of automation and high processing efficiency. However, the above punching device still has the following problems: 1. The punching device conveys the pole piece material through the winding module, and it has no correction mechanism. During the conveying process, the pole piece material may become loose or offset, affecting the stability and position of the material feeding, and affecting the subsequent processing quality; 2. The existing punching device has no protection function. When the punching head punches the material, it may cause pressure damage to the forming die, affecting the subsequent die-cutting quality. Utility Model Content

[0003] This utility model aims at the current technical deficiencies and provides a lithium battery pole piece die-cutting device, aiming to solve the technical problems in the prior art such as poor feeding stability, affecting the subsequent die-cutting quality, having no protection function, possibly crushing the knife die, having a short service life and poor subsequent die-cutting quality.

[0004] The technical solution adopted by the utility model to achieve the above-mentioned purpose is:

[0005] A lithium battery pole piece die-cutting device comprises a workbench, a pole piece feeding mechanism, a slide mechanism and a die-cutting mechanism; the pole piece feeding mechanism is arranged on the table surface at one end of the workbench, the die-cutting mechanism is arranged on the table surface at the other end of the workbench, and the slide mechanism is arranged between the pole piece feeding mechanism and the die-cutting mechanism; the pole piece feeding mechanism comprises a clamping assembly and a tension roller assembly; the slide mechanism is provided with a vacuum adsorption platform and a pressure belt clamping assembly; the die-cutting mechanism is provided with a protection assembly, and the protection assembly and the die-cutting mechanism are detachably connected.

[0006] As a further improvement, a notch is provided at one end of the workbench, and the clamping assembly is arranged at the end of the notch; the clamping assembly includes a first bracket and a cylinder, the cylinder is arranged on the first bracket, and the cylinder is provided with a first pressure block; the tension roller assembly includes a first shaft roller assembly, a second shaft roller assembly and a third shaft roller assembly, the first shaft roller assembly is arranged at one end of the notch and below the cylinder; the second shaft roller assembly is arranged in the notch; the third shaft roller assembly is arranged at the other end of the notch.

[0007] As a further improvement, a first guide roller assembly is provided in front of the first shaft roller assembly; the first shaft roller assembly, the second shaft roller assembly, the third shaft roller assembly and the first guide roller assembly all include a mounting seat and shaft rollers.

[0008] As a further improvement, the slide mechanism includes a guide rail assembly, a servo motor, a screw assembly and a mounting plate, the guide rail assembly includes two guide rails, both guide rails are provided with sliders, the mounting plate is arranged on the sliders, the servo motor is arranged on one side of the guide rails, the screw assembly is connected to the driving end of the servo motor, the screw assembly is provided with a nut seat, and the nut seat is fixedly connected to the outer side of the mounting plate.

[0009] As a further improvement, the vacuum adsorption platform is arranged on the mounting plate, and the vacuum adsorption platform is provided with a plurality of vacuum through holes and connectors; the vacuum adsorption platform is provided with a cutting die.

[0010] As a further improvement, the belt pressing and clamping assembly is arranged in front of the vacuum adsorption platform; the belt pressing and clamping assembly includes a pad and a cylinder group, the pad is arranged on the mounting plate in front of the vacuum adsorption platform, the cylinder group includes two cylinders one, and the cylinder one is arranged below the mounting plate on both sides of the pad; a clamping block is provided between the driving ends of the two cylinders one.

[0011] As a further improvement, a fourth shaft-roller assembly is provided in front of the mounting plate, and the fourth shaft-roller assembly includes two fourth mounting blocks and a fourth shaft roller; the clamping block is provided with a third cushion block.

[0012] As a further improvement, the die-cutting mechanism includes multiple guide column assemblies, a mounting plate, a booster cylinder and a die-cutting plate. The multiple guide column assemblies are arranged on the workbench, and the mounting plate is arranged on the top of the multiple guide column assemblies; the multiple guide column assemblies are provided with guide sleeves, and the die-cutting plate is fixed on the multiple guide sleeves; the booster cylinder is arranged on the mounting plate, and the driving end of the booster cylinder is connected to the die-cutting plate.

[0013] As a further improvement, the protection component includes two fixing seats and a PET film, the two fixing seats are arranged on the front and rear side surfaces of the die-cutting plate, the fixing seats are each provided with a pressure block, and the two ends of the PET film are respectively fixed between the pressure block and the fixing seat; the detachable connection can be a threaded connection structure or a snap connection structure.

[0014] As a further improvement, the workbench is also provided with a control box, a plurality of supporting legs and a plurality of rollers, and the control box is provided with a vacuum pump assembly, a control assembly and a control button.

[0015] Compared with the prior art, the above one or more technical solutions in the lithium battery pole piece die-cutting device provided in the embodiment of the utility model have at least one of the following technical effects:

[0016] 1. The utility model provides a tensioning roller assembly for tensioning the pole piece material, and cooperates with a pressing assembly for pressing the pole piece material to ensure the conveying stability of the pole piece material; provides a slide mechanism for realizing the automatic feeding action of the pole piece material to ensure the feeding stability and efficiency, and combines the setting of a pressure belt clamping assembly for pressing and fixing to ensure the feeding stability, thereby ensuring the subsequent die-cutting processing efficiency and quality;

[0017] 2. A protective component is provided to prevent the die-cutting plate from crushing the die, thereby ensuring the subsequent die-cutting quality and life of the die; and a detachable connection is provided to facilitate the replacement of the protective component, thereby improving the replacement efficiency and ensuring the normal use and production efficiency of the lithium battery pole piece die-cutting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 This is a schematic diagram of the overall structure of the lithium battery pole piece die-cutting device of this embodiment;

[0020] Figure 2It is a front view schematic diagram of the lithium battery pole piece die-cutting device of this embodiment;

[0021] Figure 3 Schematic diagram of the structure of the protection component of this embodiment. DETAILED DESCRIPTION

[0022] The following description is only a preferred embodiment of the present invention and does not limit the protection scope of the present invention.

[0023] For example, see the attached Figure 1 to Figure 3 A lithium battery pole piece die-cutting device 1 includes a workbench 2, a pole piece feeding mechanism 3, a slide mechanism 4 and a die-cutting mechanism 5; the pole piece feeding mechanism 3 is arranged on the table surface at one end of the workbench 2, the die-cutting mechanism 5 is arranged on the table surface at the other end of the workbench 2, and the slide mechanism 4 is arranged between the pole piece feeding mechanism 3 and the die-cutting mechanism 5; the pole piece feeding mechanism 3 includes a clamping assembly 6 and a tension roller assembly 7; the slide mechanism 4 is provided with a vacuum adsorption platform 8 and a pressure belt clamping assembly 9; the die-cutting mechanism 5 is provided with a protection assembly 10, and the protection assembly 10 and the die-cutting mechanism 5 are detachably connected.

[0024] A notch is provided at one end of the workbench 2, and the clamping assembly 6 is arranged at the end of the notch; the clamping assembly 6 includes a first bracket 60 and a cylinder 61, the cylinder 61 is arranged on the first bracket 60, and the cylinder 61 is provided with a first pressing block 62, and the clamping assembly 6 is used to compress the electrode material, and cooperate with the first shaft roller assembly 70 to ensure the stability and smoothness of the transportation of the electrode material; the tension roller assembly 7 includes a first shaft roller assembly 70, a second shaft roller assembly 71 and a third shaft roller assembly 72, and the first shaft roller assembly 70 is provided It is arranged at one end of the slot and below the cylinder 61; the second roller assembly 71 is arranged in the slot; the third roller assembly 72 is arranged at the other end of the slot; a first guide roller assembly 73 is arranged in front of the first roller assembly 70; the first roller assembly 70, the second roller assembly 71, the third roller assembly 72 and the first guide roller assembly 73 all include a mounting seat and rollers; the tensioning roller assembly is used for tensioning the electrode material, so as to ensure the conveying stability of the electrode material, so as to ensure the quality of the subsequent die-cutting.

[0025] The slide mechanism 4 includes a guide rail assembly 40, a servo motor 41, a screw assembly 42 and a mounting plate 43. The guide rail assembly 40 includes two guide rails, both of which are provided with sliders. The mounting plate 43 is arranged on the sliders. The servo motor 41 is arranged on one side of the guide rail. The screw assembly 42 is connected to the driving end of the servo motor 41. The screw assembly 42 is provided with a nut seat, and the nut seat is fixedly connected to the outer side of the mounting plate 43. The slide mechanism 4 is used to realize the automatic feeding action of the pole piece material to ensure the stability and efficiency of the feeding.

[0026] The vacuum adsorption platform 8 is arranged on the mounting plate 43. The vacuum adsorption platform 8 is provided with a plurality of vacuum through holes and connectors. The vacuum adsorption platform 8 is used to adsorb and fix the electrode material, thereby ensuring the position of the electrode material and the quality of subsequent die-cutting processing; a cutting die is provided on the vacuum adsorption platform 8, and the cutting die is used to perform die-cutting processing on the material with the die-cutting mechanism 5.

[0027] The belt pressing and clamping assembly 9 is arranged in front of the vacuum adsorption platform 8; the belt pressing and clamping assembly 9 includes a pad 90 and a cylinder group 91, the pad 90 is arranged on the mounting plate 43 in front of the vacuum adsorption platform 8, and the cylinder group 91 includes two cylinders 1, and the cylinders 1 are arranged below the mounting plate 43 on both sides of the pad 90; a clamping block 92 is provided between the driving ends of the two cylinders 1, and the belt pressing and clamping assembly 9 is used for pressing and fixing, so that the pole piece material on the vacuum adsorption platform 8 can be automatically conveyed in coordination with the movement of the slide mechanism 4, thereby ensuring the stability of the feeding and thus ensuring the subsequent die-cutting processing efficiency.

[0028] A fourth shaft-roller assembly 430 is also provided in front of the mounting plate 43, and the fourth shaft-roller assembly 430 includes two fourth mounting blocks and a fourth shaft-roller; the clamping block 92 is provided with a third cushion block, and the fourth shaft-roller assembly 430 is used for guiding.

[0029] The die-cutting mechanism 5 includes a plurality of guide column assemblies 50, a mounting plate 51, a booster cylinder 52 and a die-cutting plate 53. The plurality of guide column assemblies 50 are arranged on the workbench 2, and the mounting plate 51 is arranged on the top of the plurality of guide column assemblies 50; the plurality of guide column assemblies 50 are all provided with guide sleeves, and the die-cutting plate 53 is fixed on the plurality of guide sleeves; the booster cylinder 52 is arranged on the mounting plate 51, and the driving end of the booster cylinder 52 is connected to the die-cutting plate 53, and the die-cutting plate 53 is provided with a die-cutting mold. The die-cutting mechanism 5 is used for die-cutting the electrode material.

[0030] The protection component 10 includes two fixing seats 100 and a PET film 101. The two fixing seats 100 are arranged on the front and rear side surfaces of the die-cutting plate 53. The fixing seats 100 are each provided with a pressing block 102. The two ends of the PET film 101 are respectively fixed between the pressing block 102 and the fixing seat 101. The protection component 10 is used to prevent the die-cutting plate 53 from crushing the die, thereby ensuring the subsequent die-cutting quality and life of the die; the detachable connection can be a threaded connection structure or a snap connection structure. The detachable connection facilitates the replacement of the protection component 10, improves the replacement efficiency, and ensures the normal use and production efficiency of the lithium battery pole piece die-cutting device 1.

[0031] The workbench 2 is further provided with a control box 20, a plurality of supporting legs 21 and a plurality of rollers 22. The control box 20 is provided with a vacuum pump assembly, a control assembly and a control button.

[0032] The utility model provides a tensioning roller assembly for tensioning the pole piece material, and cooperates with a pressing assembly for pressing the pole piece material to ensure the conveying stability of the pole piece material; provides a slide mechanism for realizing the automatic feeding action of the pole piece material to ensure the feeding stability and efficiency, and combines the setting of a pressure belt clamping assembly for pressing and fixing to ensure the feeding stability, thereby ensuring the subsequent die-cutting processing efficiency and quality; provides a protection assembly to prevent the die-cutting plate from crushing the knife die, thereby ensuring the subsequent die-cutting quality and life of the knife die; and provides a detachable connection to facilitate the replacement of the protection assembly, improve the replacement efficiency, and ensure the normal use and production efficiency of the lithium battery pole piece die-cutting device.

[0033] The present invention is not limited to the above-mentioned embodiments. Other lithium battery pole piece die-cutting devices obtained by using the same or similar structures or devices as the above-mentioned embodiments of the present invention are all within the protection scope of the present invention.

Claims

1. A lithium battery pole piece die-cutting device, characterized in that: The lithium battery pole piece die-cutting device includes a workbench, a pole piece feeding mechanism, a slide mechanism and a die-cutting mechanism; the pole piece feeding mechanism is arranged on the table surface at one end of the workbench, the die-cutting mechanism is arranged on the table surface at the other end of the workbench, and the slide mechanism is arranged between the pole piece feeding mechanism and the die-cutting mechanism; the pole piece feeding mechanism includes a clamping assembly and a tension roller assembly; the slide mechanism is provided with a vacuum adsorption platform and a pressure belt clamping assembly; the die-cutting mechanism is provided with a protection assembly, and the protection assembly and the die-cutting mechanism are detachably connected.

2. The lithium battery pole piece die-cutting device according to claim 1, characterized in that: A notch is provided at one end of the workbench, and the clamping assembly is arranged at the end of the notch; the clamping assembly includes a first bracket and a cylinder, the cylinder is arranged on the first bracket, and the cylinder is provided with a first pressure block; the tension roller assembly includes a first shaft roller assembly, a second shaft roller assembly and a third shaft roller assembly, the first shaft roller assembly is arranged at one end of the notch and below the cylinder; the second shaft roller assembly is arranged in the notch; the third shaft roller assembly is arranged at the other end of the notch.

3. The lithium battery pole piece die-cutting device according to claim 2, characterized in that: A first guide roller assembly is provided in front of the first shaft roller assembly; the first shaft roller assembly, the second shaft roller assembly, the third shaft roller assembly and the first guide roller assembly all include a mounting seat and shaft rollers.

4. The lithium battery pole piece die-cutting device according to claim 3, characterized in that: The slide mechanism includes a guide rail assembly, a servo motor, a screw assembly and a mounting plate. The guide rail assembly includes two guide rails, and both guide rails are provided with sliders. The mounting plate is arranged on the sliders. The servo motor is arranged on one side of the guide rails. The screw assembly is connected to the driving end of the servo motor. The screw assembly is provided with a nut seat, and the nut seat is fixedly connected to the outer side of the mounting plate.

5. The lithium battery pole piece die-cutting device according to claim 4, characterized in that: The vacuum adsorption platform is arranged on the mounting plate, and the vacuum adsorption platform is provided with a plurality of vacuum through holes and connectors; the vacuum adsorption platform is provided with a cutting die.

6. The lithium battery pole piece die-cutting device according to claim 5, characterized in that: The belt pressing and clamping assembly is arranged in front of the vacuum adsorption platform; the belt pressing and clamping assembly includes a pad and a cylinder group, the pad is arranged on the mounting plate in front of the vacuum adsorption platform, the cylinder group includes two cylinders one, and the cylinder one is arranged below the mounting plate on both sides of the pad; a clamping block is provided between the driving ends of the two cylinders one.

7. The lithium battery pole piece die-cutting device according to claim 6, characterized in that: A fourth shaft-roller assembly is also provided in front of the mounting plate, and the fourth shaft-roller assembly includes two fourth mounting blocks and a fourth shaft-roller; the clamping block is provided with a third cushion block.

8. The lithium battery pole piece die-cutting device according to claim 7, characterized in that: The die-cutting mechanism includes multiple guide column assemblies, a mounting plate, a booster cylinder and a die-cutting plate. The multiple guide column assemblies are arranged on the workbench, and the mounting plate is arranged on the top of the multiple guide column assemblies; the multiple guide column assemblies are provided with guide sleeves, and the die-cutting plate is fixed on the multiple guide sleeves; the booster cylinder is arranged on the mounting plate, and the driving end of the booster cylinder is connected to the die-cutting plate.

9. The lithium battery pole piece die-cutting device according to claim 8, characterized in that: The protection component includes two fixing seats and a PET film. The two fixing seats are arranged on the front and rear side surfaces of the die-cutting plate. The fixing seats are each provided with a pressure block. The two ends of the PET film are respectively fixed between the pressure block and the fixing seat; the detachable connection can be a threaded connection structure or a snap connection structure.

10. The lithium battery pole piece die-cutting device according to claim 9, characterized in that: The workbench is also provided with a control box, a plurality of supporting legs and a plurality of rollers. The control box is provided with a vacuum pump component, a control component and a control button.

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