Pole piece laser forming device

Abstract

The utility model discloses a pole piece laser forming device which comprises a waste material bottom box, a traction assembly arranged on the waste material bottom box and a cutting conveying assembly moving on the traction assembly, and a support is arranged at the top of the waste material bottom box. The cutting conveying assembly comprises a longitudinal adjusting assembly connected with the support and a cutting bottom plate connected with the longitudinal adjusting assembly. The laser cutting device has the advantages that through the laser and the cutting conveying assembly, the cutting bottom plate with the adsorption holes can effectively prevent a pole piece material belt from shaking during laser cutting of the laser, so that the cutting precision is improved, the laser can conveniently adjust the focal length, the position and the like, the debugging workload during production remodeling is reduced, and the production efficiency is improved. Compared with a traditional hardware cutting die cutting mode, frequent maintenance and die repair are needed, a matched cutting die needs to be replaced at the same time during production and remodeling, cost is increased, a laser cutting scheme of a laser device does not need to change hardware and a cutting program during production and remodeling, and large workload can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of product manufacturing technology, specifically to an electrode laser forming device. Background Technology

[0002] In a lithium battery cell cutting and stacking machine, the rolled, continuous strip material needs to be divided into individual electrode sheets. After the tab part is cut and shaped, the electrode sheets are then flowed to the next process for stacking.

[0003] Existing technologies typically use metal cutting dies for cutting, which has several drawbacks. The dies wear out quickly, the cutting edges become dull, requiring disassembly and die repair, impacting production. Furthermore, the dies have a limited lifespan, needing replacement after a certain number of uses. Another issue is that each die for cutting electrode tabs is only suitable for one type of battery cell. When changing equipment, the electrode tab die must be replaced, increasing costs and setup time. Additionally, during cutting, the material strip vibrates due to the cutting force, affecting cutting quality. Therefore, a laser forming device for electrode sheets is needed to address these problems. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the above-mentioned background technology and provide an electrode laser forming device.

[0005] It includes a waste bin, a traction assembly mounted on the waste bin, and a cutting and conveying assembly movable on the traction assembly. The top of the waste bin is provided with a support, and the traction assembly is mounted on the support.

[0006] The cutting and conveying assembly includes a longitudinal adjustment assembly connected to the bracket and a cutting base plate connected to the longitudinal adjustment assembly. The cutting base plate has a flipped U-shaped structure and moves longitudinally on the longitudinal adjustment assembly. The inner walls of the two vertical arms of the cutting base plate are connected to a vacuum conveyor belt through a rotating shaft. The vacuum conveyor belt has a ring structure. A negative pressure cylinder is provided on the inner wall of the cutting base plate between the vacuum conveyor belts. The vacuum conveyor belt and the negative pressure cylinder are both located below the horizontal arm of the cutting base plate. A belt conveyor motor connected to the rotating shaft of the vacuum conveyor belt is installed on one side of the cutting base plate. Multiple suction holes are opened on the horizontal arm of the cutting base plate.

[0007] Furthermore, a platform is provided on the top of the waste bin, and a straight track with a horizontal spacing is provided on the top of the platform, with the support located between the tops of the two straight tracks.

[0008] Furthermore, the longitudinal adjustment assembly includes a crossbeam connected to the bracket and a track rod fixed to the crossbeam, with the cutting base plate sliding on the track rod.

[0009] Furthermore, a waste hopper is fixedly provided on one side of the cutting base plate.

[0010] Furthermore, the support frame has a gantry structure, and the traction assembly includes a pressing cylinder disposed on the top of the support frame and a drive motor disposed on one side of the support frame.

[0011] Furthermore, a pressure roller is mounted on the bottom of the output end of the lower pressure cylinder via a U-shaped frame. The pressure roller is located inside the U-shaped frame via a rotating shaft. A drive roller is mounted on one end of the output end of the drive motor. The drive roller and the pressure roller are designed to be one below the other. An electrode strip is provided between the drive roller and the pressure roller.

[0012] Furthermore, two support roller frames are fixedly installed on the top of the platform and on one side of the bracket. The two support roller frames are spaced apart, one in front of the other, and a support roller is rotatably connected between the two support roller frames. The outer side of the support roller is attached to the electrode strip.

[0013] Furthermore, a plurality of dust collection funnels are fixedly provided at the bottom of the platform, and dust collection holes are provided at the top of the platform corresponding to the positions of the dust collection funnels.

[0014] Furthermore, a lifting adjustment assembly is installed on one side of the top of the bracket, and a laser is installed at the output end of the lifting adjustment assembly. The lifting adjustment assembly includes a support plate installed on the bracket and a cylinder installed on one side of the support plate, and the output end of the cylinder is connected to the laser.

[0015] Furthermore, the laser includes an isolator, a laser galvanometer, and a laser field mirror. The isolator is installed on one side of the laser galvanometer, and the laser field mirror is installed at the bottom of the laser galvanometer.

[0016] Compared with the prior art, the advantages of this utility model are as follows: By using a laser and a cutting conveyor assembly, the cutting base plate with suction holes can effectively prevent the electrode strip from shaking during laser cutting, thereby improving cutting accuracy. Furthermore, the laser can be easily adjusted in terms of focus and position, saving the amount of debugging work during production changeovers. In contrast, traditional hardware die cutting requires frequent maintenance and mold repair, and the matching die must be replaced simultaneously during production changeovers, which increases costs. The laser cutting solution does not require hardware changes during production changeovers; only the cutting program needs to be modified, which can significantly reduce the workload. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0018] Figure 2 This is a three-dimensional structural diagram of the traction component in this utility model.

[0019] Figure 3 This is a three-dimensional structural diagram of the cutting and conveying component in this utility model.

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the laser in this utility model.

[0021] In the picture:

[0022] 1. Waste bottom box;

[0023] 2. Platform;

[0024] 3. Straight track;

[0025] 4. Support roller frame; 401. Support roller;

[0026] 5. Bracket;

[0027] 6. Downward-pressing cylinder;

[0028] 7. Pressure rollers;

[0029] 8. Drive motor; 801. Drive roller;

[0030] 9. Electrode sheet conveyor belt; 901. Dust collection funnel;

[0031] 10. Lifting and adjusting assembly;

[0032] 11. Laser;

[0033] 12. Cut the base plate;

[0034] 13. Waste funnel;

[0035] 14. Vacuum conveyor belt; 1401. Belt conveyor motor;

[0036] 15. Vertical adjustment component. Detailed Implementation

[0037] Referring now to specific embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Although the present invention will be described in conjunction with specific embodiments, it will be understood that it is not intended to limit the present invention to the described embodiments. Rather, it is intended to cover variations, modifications, and equivalents included within the spirit and scope of the present invention as defined by the appended claims. It should be noted that the method steps described herein can be implemented by any functional block or functional arrangement, and any functional block or functional arrangement can be implemented as a physical entity or a logical entity, or a combination of both.

[0038] To enable those skilled in the art to better understand this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] Note: The examples described below are merely specific examples and are not intended to limit the embodiments of this utility model to the specific steps, values, conditions, data, order, etc. Those skilled in the art can utilize the concept of this utility model to construct more embodiments not mentioned herein by reading this specification.

[0040] Existing technologies typically use metal cutting dies for cutting, which has several drawbacks. The dies wear out quickly, the cutting edges become dull, requiring disassembly and die repair, impacting production. Furthermore, the dies have a limited lifespan, needing replacement after a certain number of uses. Another issue is that each die for cutting electrode tabs is only suitable for one type of battery cell. When changing equipment, the electrode tab die must be replaced, increasing costs and setup time. Additionally, during cutting, the material strip vibrates due to the cutting force, affecting cutting quality. Therefore, a laser forming device for electrode sheets is needed to address these problems.

[0041] In order to solve the problems existing in the manufacturing of the above-mentioned products, this utility model proposes an electrode laser forming device.

[0042] Please see Figure 1 and Figure 3 The system includes a waste material base box 1, a traction assembly mounted on the waste material base box 1, and a cutting and conveying assembly movable on the traction assembly. A support 5 is provided on the top of the waste material base box 1, and the traction assembly is mounted on the support 5. The cutting and conveying assembly includes a longitudinal adjustment assembly 15 connected to the support 5 and a cutting base plate 12 connected to the longitudinal adjustment assembly 15. The cutting base plate 12 has a flipped U-shaped structure and moves longitudinally on the longitudinal adjustment assembly 15. A vacuum conveyor belt 14 is connected to the inner walls of the two vertical arms of the cutting base plate 12 via a rotating shaft cylinder. The empty conveyor belt 14 has a ring structure. A negative pressure cylinder is set on the inner wall of the cutting base plate 12 and between the vacuum conveyor belts 14. Both the vacuum conveyor belt 14 and the negative pressure cylinder are located below the cross arm of the cutting base plate 12. A belt conveyor motor 1401 connected to the shaft cylinder of the vacuum conveyor belt 14 is installed on one side of the cutting base plate 12. Multiple adsorption holes are opened on the cross arm of the cutting base plate 12. A platform 2 is set on the top of the waste bottom box 1. A straight track 3 with a horizontal spacing is set on the top of the platform 2. The support 5 is set between the tops of the two straight tracks 3.

[0043] like Figure 1 and Figure 3As shown, the waste bottom box 1 has a square box structure with a door on one side. The waste bottom box 1 is equipped with a waste cart that can enter and exit the waste bottom box 1. The top of the waste bottom box 1 is an open structure and is covered by a platform 2, which forms a closed structure on the top of the waste bottom box 1. Two straight tracks 3 are laid horizontally on the top of the platform 2, and the two straight tracks 3 are spaced apart one in front of the other. The support 5 is set on the two straight tracks 3 and is driven by a linear motor to move on the straight tracks 3.

[0044] Specifically, both the traction assembly and the cutting and transport assembly are mounted on the support 5. The cutting and transport assembly mainly consists of a cutting base plate 12, a bottom material funnel, a vacuum conveyor belt 14, a belt conveyor motor 1401, and a longitudinal adjustment assembly 15. The longitudinal adjustment assembly 15 is connected to the cutting base plate 12 and is bolted to the support 5, thus allowing the cutting base plate 12 to float. Due to the U-shaped structure of the cutting base plate 12, a channel is formed in the middle of the two vertical arms of the cutting base plate 12, allowing the vacuum conveyor belt 14 to be rotatably connected to the two vertical arms of the cutting base plate 12 via a rotating shaft cylinder. Furthermore, a negative pressure cylinder is fixedly connected inside the channel of the cutting base plate 12, with one end of the negative pressure cylinder extending from inside the channel of the cutting base plate 12. Extending outwards, the other end of the vacuum conveyor belt 14 is connected to the negative pressure cylinder via a rotating shaft, forming a ring shape. The negative pressure cylinder is positioned in the middle of the vacuum conveyor belt 14. The output end of the belt conveyor motor 1401, mounted on one side of the cutting base plate 12, is connected to the rotating shaft cylinder of the vacuum conveyor belt 14. This allows the belt conveyor motor 1401 to rotate the rotating shaft cylinder, thereby moving the vacuum conveyor belt 14. Simultaneously, multiple suction holes are provided on the cross arm of the cutting base plate 12. Due to the design of the vacuum conveyor belt 14, the electrode material strip 9 is adsorbed while the negative pressure cylinder is drawing in air. This prevents the electrode material strip 9 from vibrating during cutting, thus improving cutting accuracy and ensuring quality.

[0045] In some embodiments, the cutting station consists of a vacuum conveyor belt 14 and a cutting base plate 12, both of which have perforations and are supplied with negative pressure. They are responsible for adsorbing and removing dust from the electrode strip 9 and are mounted on the longitudinal adjustment assembly 15 for position adjustment. The outline of the cutting base plate 12 is slightly larger than the electrode. When the electrode strip 9 is laser-cut, impact dust and heat will be generated. The cutting base plate 12 is responsible for supporting the cutting edge of the electrode strip 9, adsorbing dust, and absorbing heat.

[0046] The electrode tabs are first cut by laser. The detached waste material is drawn away by a funnel with negative pressure. After the electrode tabs are formed, they are cut. After the electrode strip 9 is cut, it can no longer be powered by the previous drive roller 801. Instead, it is transported to the subsequent station by the adsorption of the vacuum conveyor belt 14.

[0047] Please see Figure 3 The longitudinal adjustment assembly 15 includes a crossbeam connected to the bracket 5 and a track rod fixed on the crossbeam, with the cutting base plate 12 sliding on the track rod.

[0048] like Figure 3 As shown, the longitudinal adjustment assembly 15 mainly consists of two parts. The first part is a cross frame, which is connected to the bracket 5 by bolts. The bottom of the cross frame is connected to a track rod, and the cutting base plate 12 is fitted onto the outer surface of the track rod by an ear sleeve, so that the cutting base plate 12 can adjust its position according to the position of the electrode strip 9, which is convenient for cutting the electrode strip 9.

[0049] Please see Figure 1 and Figure 3 A waste hopper 13 is fixed on one side of the cutting base plate 12.

[0050] like Figure 1 and Figure 3 As shown, during the cutting process, the dust and waste generated during cutting can be absorbed, and an opening is provided on the platform 2 at the position corresponding to the waste funnel 13, so that the generated waste can enter the interior of the waste bottom box 1.

[0051] Please see Figure 1 and Figure 2 The support 5 has a gantry structure. The traction component includes a pressing cylinder 6 set at the top of the support 5 and a drive motor 8 set on one side of the support 5. The bottom of the output end of the pressing cylinder 6 is equipped with a pressure roller 7 through a U-shaped frame. The pressure roller 7 is set inside the U-shaped frame through a rotating shaft. One end of the output end of the drive motor 8 is equipped with a drive roller 801. The drive roller 801 and the pressure roller 7 are designed to be one below and one above. The electrode material strip 9 is set between the drive roller 801 and the pressure roller 7.

[0052] like Figure 1 and Figure 2 As shown, the traction assembly is responsible for driving the front electrode strip 9 forward. The traction assembly consists of a drive roller 801 and a pressure roller 7. The pressure roller 7 presses the electrode strip 9 against the drive roller 801 to provide the friction required for traction. A brush and a dust collection funnel 901 are installed below the drive roller 801 to clean the residual dust on the surface of the drive roller 801.

[0053] Please see Figure 1 Two support roller frames 4 are fixedly installed on the top of the platform 2 and on one side of the bracket 5. The two support roller frames 4 are spaced one in front of the other. A support roller 401 is rotatably connected between the two support roller frames 4. The outer side of the support roller 401 is attached to the electrode material strip 9.

[0054] like Figure 1As shown, the support roller frame 4 and the support roller form a gantry structure, which can support the electrode strip 9 and prevent it from sagging due to gravity because of its length, thus preventing damage.

[0055] Please see Figure 2 Multiple dust collection funnels 901 are fixedly provided at the bottom of the platform 2, and dust collection holes are provided at the top of the platform 2 at the positions corresponding to the dust collection funnels 901.

[0056] like Figure 2 As shown, the dust falling from the electrode strip 9 can be guided to the interior of the waste bottom box 1 through the dust collection funnel 901 to prevent accumulation.

[0057] Please see Figure 1 and Figure 4 A lifting adjustment assembly 10 is installed on one side of the top of the bracket 5. A laser 11 is installed at the output end of the lifting adjustment assembly 10. The lifting adjustment assembly 10 includes a support plate installed on the bracket 5 and a cylinder installed on one side of the support plate. The output end of the cylinder is connected to the laser 11. The laser 11 includes an isolator, a laser galvanometer, and a laser field lens. The isolator is installed on one side of the laser galvanometer, and the laser field lens is installed at the bottom of the laser galvanometer.

[0058] like Figure 1 and Figure 4 As shown, the traditional metal die cutting is eliminated, and laser cutting is used instead. Laser 11 can easily adjust the focal length, position, etc., saving the debugging workload during production changeover and improving cutting efficiency.

[0059] When using this utility model, the cutting base plate 12 with adsorption holes can effectively prevent the electrode strip 9 from shaking during laser cutting, thereby providing cutting accuracy. The laser 11 can easily adjust the focal length, position, etc., saving the debugging workload during production changeover. Moreover, the laser cutting solution does not require hardware changes during production changeover; only the cutting program needs to be changed, which can significantly reduce the workload. Furthermore, the laser first cuts and forms the electrode tabs, and the detached waste material is drawn away by a funnel with negative pressure. After the electrode tabs are formed, they are cut. After the electrode is cut, it can no longer be powered by the previous drive roller 801, but is transported to the subsequent workstation under the adsorption of the vacuum conveyor belt 14.

[0060] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0061] It should be noted that in this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0062] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features of the present invention.

Claims

1. An electrode laser forming device, comprising a scrap box (1), a traction assembly arranged on the scrap box (1), and a cutting and conveying assembly movably arranged on the traction assembly, characterized in that, The top of the waste box (1) is provided with a support (5), and the traction assembly is arranged on the support (5); The cutting conveying assembly comprises a longitudinal adjusting assembly (15) connected with the support (5) and a cutting bottom plate (12) connected with the longitudinal adjusting assembly (15); the cutting bottom plate (12) is in an overturned U-shaped structure, and the cutting bottom plate (12) is longitudinally movable on the longitudinal adjusting assembly (15); the inner walls of two vertical arms of the cutting bottom plate (12) are connected with vacuum conveying belts (14) through rotating shaft cylinders, the vacuum conveying belts (14) are in an annular structure, negative pressure cylinders are arranged on the inner walls of the cutting bottom plate (12) and between the vacuum conveying belts (14), the vacuum conveying belts (14) and the negative pressure cylinders are arranged below the cross arm of the cutting bottom plate (12), a belt conveying motor (1401) connected with the rotating shaft cylinders of the vacuum conveying belts (14) is arranged on one side of the cutting bottom plate (12), and a plurality of suction holes are formed in the cross arm of the cutting bottom plate (12); the top of the waste box (1) is provided with a platform (2), the top of the platform (2) is provided with straight rails (3) with a horizontal spacing, and the support (5) is arranged between the tops of the two straight rails (3).

2. A pole piece laser forming apparatus as claimed in claim 1, wherein, The longitudinal adjusting assembly (15) comprises a cross frame connected with the support (5) and a rail rod fixedly arranged on the cross frame, and the cutting bottom plate (12) slides on the rail rod.

3. The pole piece laser forming apparatus of claim 1, wherein One side of the cutting bottom plate (12) is fixedly provided with a waste funnel (13).

4. The pole piece laser forming apparatus of claim 1, wherein The support (5) is in a gantry structure, the traction assembly comprises a pressing cylinder (6) arranged on the top of the support (5) and a driving motor (8) arranged on one side of the support (5).

5. A pole piece laser forming apparatus as claimed in claim 4, wherein The bottom of the output end of the pressing cylinder (6) is provided with a pressing roller (7) through a U-shaped frame, the pressing roller (7) is arranged in the inside of the U-shaped frame through a rotating shaft, one end of the output end of the driving motor (8) is provided with a driving roller (801), the driving roller (801) and the pressing roller (7) are designed one above the other, and an electrode belt (9) is arranged between the driving roller (801) and the pressing roller (7).

6. A pole piece laser forming apparatus as claimed in claim 5, wherein The top of the platform (2) and on one side of the support (5) are fixedly provided with two support roller frames (4), the two support roller frames (4) are arranged in a front-rear spacing mode, a support roller cylinder (401) is rotatably connected between the two support roller frames (4), and the outside of the support roller cylinder (401) is attached to the electrode belt (9).

7. The pole piece laser forming apparatus of claim 1, wherein The bottom of the platform (2) is fixedly provided with a plurality of dust collecting funnels (901), and dust collecting holes are formed in the top of the platform (2) and at positions corresponding to the dust collecting funnels (901).

8. The pole piece laser forming apparatus of claim 1, wherein, One side of the top of the support (5) is provided with a lifting adjusting assembly (10), and the output end of the lifting adjusting assembly (10) is provided with a laser (11); the lifting adjusting assembly (10) comprises a support plate arranged on the support (5) and a cylinder arranged on one side of the support plate, and the output end of the cylinder is connected with the laser (11).

9. A pole piece laser forming apparatus as claimed in claim 8, wherein, The laser (11) comprises an isolator, a laser galvanometer and a laser field mirror, the isolator is installed on one side of the laser galvanometer, and the laser field mirror is installed at the bottom of the laser galvanometer.

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