Battery diaphragm unwinding device

Abstract

The utility model discloses a battery diaphragm unwinding device which comprises a bottom plate, a fixed plate is fixed on the bottom plate, a hydraulic cylinder is installed on the bottom plate, a movable plate is fixed on a piston rod of the hydraulic cylinder, and first rotating shafts are rotationally connected to the movable plate and the fixed plate in a sleeved mode. A rotating mechanism used for driving the first rotating shaft to rotate is installed on the fixing plate, a rotating cylinder is fixed to one end of the first rotating shaft, a first lead screw is rotationally connected into the rotating cylinder in a sleeved mode, two moving bases are connected to the first lead screw in a sleeved mode through threads with opposite rotating directions, and a first sliding rod is fixed into the rotating cylinder; and the first sliding rod is sleeved with the moving seat in a sliding mode, a supporting block is fixed to the moving seat, and two symmetrically-formed sliding holes are formed in the side edge of the rotating cylinder. The diaphragm unwinding device can effectively prevent the diaphragm from loosening, and the unwinding process is very stable.

Description

Technical Field

[0001] This utility model relates to the field of battery separator processing technology, and in particular to a battery separator unwinding device. Background Technology

[0002] The separator plays a crucial role in batteries, isolating the positive and negative electrodes and preventing short circuits, while allowing lithium ions to pass through during charging and discharging, maintaining the battery's electrochemical reactions. Battery separator unwinding refers to the continuous and stable release of separator material from the roll and its input into the lithium battery winding process, where it is alternately stacked with the positive and negative electrode sheets to form the battery cell. If the separator is not properly controlled during unwinding, it can easily become loose, leading to warping and jamming, affecting subsequent processes. Therefore, we propose a battery separator unwinding device. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a battery separator unwinding device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A battery separator unwinding device includes a base plate, a fixed plate fixed on the base plate, a hydraulic cylinder mounted on the base plate, a movable plate fixed to the piston rod of the hydraulic cylinder, a first rotating shaft rotatably sleeved on both the movable plate and the fixed plate, a rotating mechanism for driving the first rotating shaft to rotate mounted on the fixed plate, a rotating cylinder fixed to one end of the first rotating shaft, a first lead screw rotatably sleeved inside the rotating cylinder, two movable seats sleeved on the first lead screw through oppositely threaded threads, a first sliding rod fixed inside the rotating cylinder, and the movable seats slidably sleeved. On the first slide rod, a support block is fixed on the movable seat. Two symmetrically arranged sliding holes are opened on the side of the rotating cylinder. The support block is slidably installed in the sliding holes. An installation plate is installed on the side of the fixed plate through a lifting mechanism. The lifting mechanism is used to drive the installation plate to rise and fall. A third slide rod is slidably sleeved on the installation plate. A limit block is fixed at the top of the third slide rod. An installation seat is fixed at the bottom of the third slide rod. A spring is sleeved on the third slide rod. A second rotating shaft is rotatably installed in the installation seat. A pressure roller is fixedly sleeved on the second rotating shaft.

[0006] Preferably, the top of the base plate is provided with a sliding groove, and the bottom end of the movable plate is slidably installed in the sliding groove.

[0007] Preferably, the rotating mechanism includes a first fixed base, a first motor, a worm gear, and a worm wheel. The first fixed base is fixed on a fixed plate, and the first motor is mounted on the first fixed base. The output shaft of the first motor is connected to the worm gear, and the worm wheel is fixedly sleeved on a first rotating shaft. The worm wheel meshes with the worm gear for transmission.

[0008] Preferably, a knob is fixed to one end of the first lead screw, and an anti-slip pad is fixed to the support block.

[0009] Preferably, the lifting mechanism includes a second fixed seat, a second motor, a second lead screw, and a second slide rod. The second fixed seat is fixed on a fixed plate, and the second motor is mounted on the second fixed seat. The output shaft of the second motor is connected to the second lead screw, which is threaded into the mounting plate. The second slide rod is fixed on the second fixed seat and is slidably sleeved in the mounting plate.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. In this utility model, the hydraulic cylinder pushes the moving plate to slide on the base plate, which can adjust the distance between the two rotating drums, thereby facilitating the adaptation to battery separator rolls of different lengths and making it convenient to disassemble and assemble the battery separator rolls. The two rotating drums are used to fit onto the inner wall of the paper core of the battery separator roll. By rotating the first lead screw with a knob, the first lead screw drives the two moving seats to slide towards or away from each other on the first slide rod through the opposite screw threads. When moving away from each other, the support block can be pushed out and supported on the inner wall of the paper core of the battery separator roll, thereby fixing the battery separator roll and facilitating rotation during subsequent unwinding. When moving towards each other, the support block can be retracted into the sliding hole, which facilitates fixing the battery separator roll and thus releasing the fixing of the battery separator roll, making it convenient to disassemble the battery separator roll.

[0012] 2. In this utility model, the rotating mechanism drives the first rotating shaft to rotate, and the first rotating shaft drives the rotating drum to rotate. Since the battery separator roll is fixed on the two rotating drums, it can drive the battery separator roll to rotate synchronously to achieve unwinding. Through the self-locking property of the worm gear and worm wheel transmission, the free rotation of the first rotating shaft can be avoided, resulting in good stability. During the unwinding process, the lifting mechanism drives the mounting plate to rise and fall, so that the pressure roller can press against the outside of the battery separator roll. This can prevent the battery separator on the battery separator roll from becoming loose. The height of the mounting plate is also adjusted at any time during the unwinding process, and the spring can achieve flexible pressing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a battery separator unwinding device proposed in this utility model;

[0014] Figure 2 for Figure 1 A schematic diagram of the local structure at position A in the middle;

[0015] Figure 3 for Figure 1 A partial structural diagram.

[0016] In the diagram: 1. Base plate, 2. Hydraulic cylinder, 3. Moving plate, 4. Fixed plate, 5. First rotating shaft, 6. Rotating mechanism, 61. First fixed seat, 62. First motor, 63. Worm gear, 64. Worm wheel, 7. Rotary drum, 8. Lifting mechanism, 81. Second fixed seat, 82. Second motor, 83. Second lead screw, 84. Second slide bar, 9. Mounting plate, 10. Mounting seat, 11. Pressure roller, 12. Knob, 13. First lead screw, 14. First slide bar, 15. Moving seat, 16. Support block, 17. Anti-slip pad, 18. Limiting block, 19. Third slide bar, 20. Spring, 21. Second rotating shaft. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Reference Figure 1 , Figure 2 , Figure 3A battery separator unwinding device includes a base plate 1, a fixing plate 4 fixed on the base plate 1, a hydraulic cylinder 2 mounted on the base plate 1, a movable plate 3 fixed to the piston rod of the hydraulic cylinder 2, a groove on the top of the base plate 1, and the bottom end of the movable plate 3 slidably installed in the groove. The hydraulic cylinder 2 pushes the movable plate 3 to slide on the base plate 1, adjusting the distance between two rotating drums 7, thus facilitating the adaptation to battery separator rolls of different lengths and making it convenient to assemble and disassemble the battery separator rolls. The two rotating drums 7 are used to fit onto the inner wall of the paper core of the battery separator roll. By rotating the first lead screw 13 through the knob 12, the first lead screw 13 drives two movable seats 15 on the first slide rod through the opposite threads. 14 slides towards or away from each other. When moving away from each other, the support block 16 can be pushed out, supporting the inner wall of the paper core of the battery separator roll, thus fixing the battery separator roll for easy rotation during subsequent unwinding. When moving towards each other, the support block 16 can be retracted into the sliding hole, facilitating the fixing of the battery separator roll and releasing the fixing of the battery separator roll for easy disassembly. A first rotating shaft 5 is rotatably sleeved on both the moving plate 3 and the fixed plate 4. A rotating mechanism 6 is installed on the fixed plate 4 to drive the first rotating shaft 5 to rotate. A rotating drum 7 is fixed to one end of the first rotating shaft 5. The rotating mechanism 6 drives the first rotating shaft 5 to rotate, and the first rotating shaft 5 drives the rotating drum. 7. Rotation: Since the battery separator roll is fixed on two rotating drums 7, it can drive the battery separator roll to rotate synchronously, realizing unwinding. A first lead screw 13 is rotatably connected inside the rotating drum 7. A knob 12 is fixed to one end of the first lead screw 13. An anti-slip pad 17 is fixed on the support block 16. Two movable seats 15 are connected to the first lead screw 13 through threads with opposite directions. A first slide rod 14 is fixed inside the rotating drum 7. The movable seats 15 are slidably connected to the first slide rod 14. A support block 16 is fixed on the movable seat 15. Two symmetrically arranged sliding holes are opened on the side of the rotating drum 7. The support block 16 is slidably installed in the sliding holes. A lifting mechanism 8 is installed on the side of the fixing plate 4. Mounting plate 9 and lifting mechanism 8 are used to drive mounting plate 9 to rise and fall. A third slide rod 19 is slidably sleeved on mounting plate 9. A limit block 18 is fixed at the top of the third slide rod 19 and a mounting base 10 is fixed at the bottom of the third slide rod 19. A spring 20 is sleeved on the third slide rod 19. A second rotating shaft 21 is rotatably installed inside the mounting base 10. A pressure roller 11 is fixedly sleeved on the second rotating shaft 21. During unwinding, lifting mechanism 8 drives mounting plate 9 to rise and fall, so that pressure roller 11 can be pressed against the outside of battery separator roll. This can prevent the battery separator on the battery separator roll from becoming loose. The height of mounting plate 9 is also adjusted at any time during unwinding. The spring 20 can achieve flexible pressing.

[0019] Reference Figure 2The rotating mechanism 6 includes a first fixed base 61, a first motor 62, a worm 63, and a worm wheel 64. The first fixed base 61 is fixed on the fixed plate 4. The first motor 62 is mounted on the first fixed base 61. The output shaft of the first motor 62 is connected to the worm 63. The worm wheel 64 is fixedly sleeved on the first rotating shaft 5. The worm wheel 64 meshes with the worm 63 for transmission. The first motor 62 drives the worm 63 to rotate. The worm 63 can drive the first rotating shaft 5 to rotate through the meshing between it and the worm wheel 64. The self-locking property of the transmission between the worm 63 and the worm wheel 64 can prevent the first rotating shaft 5 from rotating freely, resulting in good stability.

[0020] Reference Figure 2 The lifting mechanism 8 includes a second fixed seat 81, a second motor 82, a second lead screw 83, and a second slide rod 84. The second fixed seat 81 is fixed on the fixed plate 4. The second motor 82 is installed on the second fixed seat 81. The output shaft of the second motor 82 is connected to the second lead screw 83. The second lead screw 83 is threadedly sleeved in the mounting plate 9. The second slide rod 84 is fixed on the second fixed seat 81. The second slide rod 84 is slidably sleeved in the mounting plate 9. The second motor 82 drives the second lead screw 83 to rotate. The second lead screw 83 can drive the mounting plate 9 to slide on the second slide rod 84 through the threaded transmission between it and the mounting plate 9.

[0021] Working principle: During use, hydraulic cylinder 2 pushes moving plate 3 to slide on base plate 1, adjusting the distance between the two rotating drums 7 to accommodate battery separator rolls of different lengths. This facilitates the assembly and disassembly of the battery separator rolls. The two rotating drums 7 are fitted onto the inner wall of the paper core of the battery separator roll. Rotating the first lead screw 13 via knob 12 causes the two moving seats 15 to slide towards or away from each other on the first slide rod 14 via threads with opposite directions. When moving away from each other, the support block 16 can be pushed out, supporting the inner wall of the paper core of the battery separator roll, thus fixing the battery separator roll and facilitating rotation during subsequent unwinding. During movement, the support block 16 can be retracted into the sliding hole to facilitate fixing the battery separator roll, thereby releasing the fixing of the battery separator roll and facilitating disassembly of the battery separator roll; the rotating mechanism 6 drives the first rotating shaft 5 to rotate, and the first rotating shaft 5 drives the rotating drum 7 to rotate. Since the battery separator roll is fixed on the two rotating drums 7, it can drive the battery separator roll to rotate synchronously to achieve unwinding. During the unwinding process, the lifting mechanism 8 drives the mounting plate 9 to rise and fall, thereby pressing the pressure roller 11 on the outside of the battery separator roll. This can prevent the battery separator on the battery separator roll from becoming loose. The height of the mounting plate 9 is also adjusted at any time during the unwinding process, and the spring 20 can achieve flexible pressing.

[0022] The operating principle of the rotating mechanism 6 is as follows: the first motor 62 drives the worm 63 to rotate, and the worm 63 can drive the first rotating shaft 5 to rotate through the meshing between the worm and the worm wheel 64.

[0023] The operating principle of the lifting mechanism 8 is as follows: the second motor 82 drives the second lead screw 83 to rotate, and the second lead screw 83 can drive the mounting plate 9 to slide on the second slide rod 84 through the threaded transmission between the second lead screw 83 and the mounting plate 9.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A battery separator unwinding device, comprising a base plate (1), characterized in that, A fixed plate (4) is fixed on the base plate (1). A hydraulic cylinder (2) is installed on the base plate (1). A movable plate (3) is fixed to the piston rod of the hydraulic cylinder (2). A first rotating shaft (5) is rotatably sleeved on both the movable plate (3) and the fixed plate (4). A rotating mechanism (6) for driving the first rotating shaft (5) to rotate is installed on the fixed plate (4). A rotating cylinder (7) is fixed to one end of the first rotating shaft (5). A first lead screw (13) is rotatably sleeved inside the rotating cylinder (7). Two movable seats (15) are sleeved on the first lead screw (13) through threads with opposite directions. A first sliding rod (14) is fixed inside the rotating cylinder (7). The movable seats (15) are slidably sleeved on the first sliding rod (14). A support block (16) is fixed on the moving seat (15). Two symmetrically arranged sliding holes are opened on the side of the rotating drum (7). The support block (16) is slidably installed in the sliding holes. An installation plate (9) is installed on the side of the fixed plate (4) through a lifting mechanism (8). The lifting mechanism (8) is used to drive the installation plate (9) to rise and fall. A third slide rod (19) is slidably sleeved on the installation plate (9). A limit block (18) is fixed at the top of the third slide rod (19). An installation seat (10) is fixed at the bottom of the third slide rod (19). A spring (20) is sleeved on the third slide rod (19). A second rotating shaft (21) is rotatably installed in the installation seat (10). A pressure roller (11) is fixedly sleeved on the second rotating shaft (21).

2. The battery separator unwinding device according to claim 1, characterized in that, The top of the base plate (1) is provided with a sliding groove, and the bottom end of the movable plate (3) is slidably installed in the sliding groove.

3. The battery separator unwinding device according to claim 1, characterized in that, The rotating mechanism (6) includes a first fixed seat (61), a first motor (62), a worm (63), and a worm wheel (64). The first fixed seat (61) is fixed on the fixed plate (4). The first motor (62) is installed on the first fixed seat (61). The output shaft of the first motor (62) is connected to the worm (63). The worm wheel (64) is fixedly sleeved on the first rotating shaft (5). The worm wheel (64) meshes with the worm (63) for transmission.

4. The battery separator unwinding device according to claim 1, characterized in that, A knob (12) is fixed to one end of the first lead screw (13), and an anti-slip pad (17) is fixed on the support block (16).

5. The battery separator unwinding device according to claim 1, characterized in that, The lifting mechanism (8) includes a second fixed seat (81), a second motor (82), a second lead screw (83), and a second slide rod (84). The second fixed seat (81) is fixed on the fixed plate (4). The second motor (82) is installed on the second fixed seat (81). The output shaft of the second motor (82) is connected to the second lead screw (83). The second lead screw (83) is threaded into the mounting plate (9). The second slide rod (84) is fixed on the second fixed seat (81). The second slide rod (84) is slidably sleeved in the mounting plate (9).

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