Lithium battery pole piece cutting device

Abstract

The utility model provides a lithium battery pole piece cutting device which comprises a workbench, a supporting frame is arranged at the lower end of the workbench, a connecting plate is arranged at the upper end of the workbench, two first rectangular blocks are arranged at the upper end of the connecting plate, a guide roller is rotationally arranged between the two first rectangular blocks, and a connecting frame is arranged at the upper end of the workbench. An electric push rod is arranged at the upper end of the connecting frame, a cutting knife is arranged at the telescopic end of the electric push rod, an avoiding notch corresponding to the vertical position of the cutting knife is formed in the upper end of the connecting plate, an adjustable limiting mechanism is arranged in the connecting plate, and a conveying mechanism is arranged in the connecting plate. According to the lithium battery pole piece cutting device, the adjustable limiting mechanism can ensure that the pole piece is in a correct position and posture before being cut, the situation of displacement is prevented, the cutting precision and the consistency of finished products are improved, and the quality of subsequent lithium battery assembly is indirectly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium battery pole piece cutting, and particularly relates to a lithium battery pole piece cutting device. Background Art

[0002] Lithium battery pole pieces are key components inside lithium-ion batteries and are divided into positive pole pieces and negative pole pieces. Positive pole pieces are usually made by coating an active material layer containing lithium compounds (such as lithium cobalt oxide, lithium nickel cobalt manganese oxide, etc.) on aluminum foil; negative pole pieces are formed by coating carbon materials such as graphite on copper foil. These two types of pole pieces are responsible for the embedding and de-embedding of lithium ions during the battery charging and discharging process, thereby realizing the storage and release of electrical energy. The lithium battery pole piece cutting device is used to accurately divide the pole piece materials produced continuously over a large area into small pieces suitable for the battery packaging size. The existing lithium battery pole piece cutting device cuts the electrode piece through a moving cutting knife. It lacks an effective limiting mechanism to fix and guide the position of the electrode piece during the transportation and cutting process, which will cause the pole piece to shift during cutting, affecting the subsequent battery assembly quality.

[0003] For example, the utility model with announcement number CN220782425U discloses a lithium battery pole piece cutting device. In this patent scheme, the cutting of the lithium battery pole piece is achieved by a cutting knife. Due to the lack of an effective limiting mechanism to fix and guide the position of the electrode piece during the transportation and cutting process, the absence of a limiting mechanism may cause the pole piece to shift during cutting, resulting in a non-straight cutting line or inconsistent size, affecting the accuracy and consistency of battery assembly. Utility Model Content

[0004] In view of this, the utility model aims to provide a lithium battery pole piece cutting device to address the deficiencies in the prior art. The adjustable limit mechanism can ensure that the pole piece is in the correct position and posture before cutting, prevent the pole piece from shifting, improve the cutting accuracy and consistency of the finished product, and indirectly improve the quality of subsequent lithium battery assembly.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a lithium battery pole piece cutting device, comprising a workbench, a supporting frame is arranged at the lower end of the workbench, a connecting plate is arranged at the upper end of the workbench, two rectangular blocks are arranged at the upper end of the connecting plate, a guide roller is rotatably arranged between the two rectangular blocks, a connecting frame is arranged at the upper end of the workbench, an electric push rod is arranged at the upper end of the connecting frame, a cutting knife is arranged on the telescopic end of the electric push rod, an avoidance slot corresponding to the upper and lower positions of the cutting knife is opened at the upper end of the connecting plate, an adjustable limiting mechanism is arranged inside the connecting plate, a conveying mechanism is arranged inside the connecting plate, the adjustable limiting mechanism includes two limiting plates slidably arranged inside the connecting plate, a frame plate is arranged at the lower end of the connecting plate, a bidirectional screw rod is rotatably arranged inside the frame plate, the two limiting plates are respectively threadedly connected to the front and rear corresponding ends of the bidirectional screw rod, an electric drive unit for driving the bidirectional screw rod to rotate is arranged at the rear end of the frame plate, the electric drive unit includes a motor 1 arranged at the rear side of the frame plate, and the output shaft of the motor 1 is connected to the rear end of the bidirectional screw rod through a coupling.

[0006] As a further improvement of the utility model, two roller frames are arranged on the left side of the connecting plate, two mounting plates are rotatably arranged inside the two roller frames, and a discharging plate is arranged on the right side of the connecting plate.

[0007] As a further improvement of the utility model, the conveying mechanism includes a limiting roller rotatably arranged at the lower end of the connecting plate, two rectangular blocks 2 are arranged at the upper end of the connecting plate, a rotating roller installed in cooperation with the limiting roller is rotatably arranged between the two rectangular blocks 2, and an electric drive unit 2 for driving the rotating roller to rotate is arranged at the rear end of the rear rectangular block 2. The electric drive unit 2 includes a motor 2 arranged at the rear end of the rear rectangular block 2, and the output shaft of the motor 2 is connected to the rear end of the rotating roller through a coupling.

[0008] As a further improvement of the present invention, a control panel is arranged on the front side of the workbench, and the motor 1, the motor 2 and the electric push rod are all electrically connected to the control panel.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0010] First, the lithium battery pole piece roller is installed between two mounting plates by means of bolts, and then the lithium battery pole piece is passed between the guide rollers, between the two limit plates, and out from between the two limit rollers and the rotating roller. Then, the control panel is controlled to turn on the second motor, and the output shaft drives the rotating roller to rotate and cooperate with the limit roller to move the lithium battery pole piece to the right to the lower end of the cutting knife, and then the second motor is turned off. Then, the control panel is controlled to turn on the electric push rod, and the telescopic end drives the cutting knife to move downward to quickly cut the lithium battery pole piece.

[0011] Secondly, the cut lithium battery pole pieces can slide out from the discharge plate to achieve accurate discharge of the lithium battery pole pieces.

[0012] Thirdly, by controlling the control panel to turn on the motor, the output shaft drives the bidirectional screw to rotate, so that the limit plates on both sides approach each other, which can limit the lithium battery pole pieces of different widths. The adjustable limit mechanism can ensure that the pole piece is in the correct position and posture before cutting, prevents the pole piece from moving, improves the cutting accuracy and consistency of the finished product, and indirectly improves the quality of subsequent lithium battery assembly.

[0013] Fourthly, the electrical components on the cutting device can be controlled through the control panel, which is convenient for personnel to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0017] Figure 3 It is a front structural schematic diagram of the utility model;

[0018] Figure 4 It is a left view structural schematic diagram of the adjustable limiting mechanism of the utility model.

[0019] In the figure: 101, workbench; 102, support frame; 103, control panel; 104, connecting plate; 105, discharge plate; 106, roller frame; 107, mounting plate; 108, guide roller; 109, rectangular block one; 110, connecting frame; 111, electric push rod; 112, cutting knife; 201, limit plate; 202, motor one; 203, frame plate; 204, bidirectional screw; 301, motor two; 302, rectangular block two; 303, rotating roller; 304, limit roller. DETAILED DESCRIPTION

[0020] In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the embodiments, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0021] like Figure 1 , 2As shown in Figures 3 and 4, a lithium battery pole piece cutting device comprises a workbench 101, a support frame 102 is arranged at the lower end of the workbench 101, a connecting plate 104 is arranged at the upper end of the workbench 101, two rectangular blocks 109 are arranged at the upper end of the connecting plate 104, a guide roller 108 is rotatably arranged between the two rectangular blocks 109, a connecting frame 110 is arranged at the upper end of the workbench 101, an electric push rod 111 is arranged at the upper end of the connecting frame 110, a cutting knife 112 is arranged on the telescopic end of the electric push rod 111, an avoidance notch corresponding to the upper and lower positions of the cutting knife 112 is opened at the upper end of the connecting plate 104, an adjustable limiting mechanism is arranged inside the connecting plate 104, and a conveying mechanism is arranged inside the connecting plate 104. The feeding mechanism includes a limiting roller 304 rotatably arranged at the lower end of the connecting plate 104, two rectangular blocks 302 are arranged at the upper end of the connecting plate 104, a rotating roller 303 which is rotatably installed in cooperation with the limiting roller 304 is rotatably arranged between the two rectangular blocks 302, an electric drive unit 2 for driving the rotating roller 303 to rotate is arranged at the rear end of the rear rectangular block 302, the electric drive unit 2 includes a motor 301 arranged at the rear end of the rear rectangular block 302, the output shaft of the motor 301 is connected to the rear end of the rotating roller 303 through a coupling, two roller frames 106 are arranged on the left side of the connecting plate 104, two mounting plates 107 are rotatably arranged inside the two roller frames 106, and a discharge plate 105 is arranged on the right side of the connecting plate 104.

[0022] like Figure 1 , 2 As shown in Figures 3 and 4, the adjustable limit mechanism includes two limit plates 201 slidably arranged inside the connecting plate 104, a frame plate 203 is arranged at the lower end of the connecting plate 104, a bidirectional screw rod 204 is rotatably arranged inside the frame plate 203, the two limit plates 201 are respectively threadedly connected with the front and rear corresponding ends of the bidirectional screw rod 204, an electric drive unit for driving the bidirectional screw rod 204 to rotate is arranged at the rear end of the frame plate 203, and the electric drive unit includes a motor 202 arranged on the rear side of the frame plate 203, and the output shaft of the motor 202 is connected to the rear end of the bidirectional screw rod 204 through a coupling.

[0023] like Figure 1 As shown, a control panel 103 is disposed on the front side of the workbench 101 , and the motor 1 202 , the motor 2 301 and the electric push rod 111 are all electrically connected to the control panel 103 .

[0024] The lithium battery pole piece roller is installed between the two mounting plates 107 by means of bolts, and then the lithium battery pole piece is passed between the guide rollers 108, between the two limit plates 201, and out from between the two limit rollers 304 and the rotating roller 303. Then, the control panel 103 is used to control the opening of the motor 2 301, and the output shaft drives the rotating roller 303 to rotate and cooperate with the limit roller 304 to move the lithium battery pole piece to the right to the lower end of the cutting knife 112, and then the motor 2 301 is turned off. Then, the control panel 103 is used to control the opening of the electric push rod 111, and the telescopic end drives the cutting knife 112 to move downward to cut the lithium battery pole piece, and the cut lithium battery pole piece slides out from the discharge plate 105.

[0025] The control panel 103 is used to control the motor 202 to start, and the output shaft drives the bidirectional screw rod 204 to rotate, so that the limiting plates 201 on both sides are close to each other, which can limit the lithium battery pole pieces of different widths.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A lithium battery pole piece cutting device, comprising a workbench (101), wherein a support frame (102) is provided at the lower end of the workbench (101), characterized in that: A connecting plate (104) is arranged at the upper end of the workbench (101), two rectangular blocks (109) are arranged at the upper end of the connecting plate (104), a guide roller (108) is rotatably arranged between the two rectangular blocks (109), a connecting frame (110) is arranged at the upper end of the workbench (101), an electric push rod (111) is arranged at the upper end of the connecting frame (110), a cutting knife (112) is arranged on the telescopic end of the electric push rod (111), an avoidance notch corresponding to the upper and lower positions of the cutting knife (112) is opened at the upper end of the connecting plate (104), an adjustable limiting mechanism is arranged inside the connecting plate (104), and a conveying mechanism is arranged inside the connecting plate (104).

2. A lithium battery pole piece cutting device as claimed in claim 1, characterized in that: The adjustable limiting mechanism comprises two limiting plates (201) slidably arranged inside the connecting plate (104); a frame plate (203) is arranged at the lower end of the connecting plate (104); a bidirectional screw rod (204) is rotatably arranged inside the frame plate (203); the two limiting plates (201) are respectively threadedly connected to the front and rear corresponding ends of the bidirectional screw rod (204); and an electric drive unit for driving the bidirectional screw rod (204) to rotate is arranged at the rear end of the frame plate (203).

3. A lithium battery pole piece cutting device as claimed in claim 2, characterized in that: The electric drive unit comprises a motor 1 (202) arranged at the rear side of the frame plate (203), and the output shaft of the motor 1 (202) is connected to the rear end of the bidirectional screw rod (204) through a coupling.

4. A lithium battery pole piece cutting device as claimed in claim 3, characterized in that: The conveying mechanism comprises a limiting roller (304) rotatably arranged at the lower end of the connecting plate (104); two rectangular blocks (302) are arranged at the upper end of the connecting plate (104); a rotating roller (303) rotatably arranged between the two rectangular blocks (302) and mounted in cooperation with the limiting roller (304); and an electric driving unit (303) for driving the rotating roller (303) to rotate is arranged at the rear end of the rear rectangular block (302).

5. A lithium battery pole piece cutting device as claimed in claim 4, characterized in that: The second electric drive unit comprises a second motor (301) arranged at the rear end of the second rear rectangular block (302), and the output shaft of the second motor (301) is connected to the rear end of the rotating roller (303) through a coupling.

6. A lithium battery pole piece cutting device as claimed in claim 1, characterized in that: Two roller frames (106) are arranged on the left side of the connecting plate (104), two mounting plates (107) are rotatably arranged inside the two roller frames (106), and a discharge plate (105) is arranged on the right side of the connecting plate (104).

7. A lithium battery pole piece cutting device as claimed in claim 5, characterized in that: A control panel (103) is provided on the front side of the workbench (101), and the motor 1 (202), the motor 2 (301) and the electric push rod (111) are all electrically connected to the control panel (103).

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