Size-adjustable battery pole piece automatic winding machine

Abstract

The utility model discloses a battery pole piece automatic winding machine with the adjustable size, and relates to the technical field of winding machines, the battery pole piece automatic winding machine comprises a winding machine body, the left side of the winding machine body is rotatably connected with a discharging roller, the right side of the winding machine body is rotatably connected with a winding roller, and a plurality of adjusting rollers are arranged at one end of the winding machine body. Mounting frames are arranged at the front end and the rear end of the outer side of the winding roller correspondingly, adjusting mechanisms used for adjusting the size of the winding inner side of the pole piece are arranged on the inner sides of the mounting frames, and the air storage soft capsules are arranged on the inner sides of the mounting frames. According to the size-adjustable battery pole piece automatic winding machine, the output end of the motor rotates and drives the bidirectional threaded rod to rotate, and the bidirectional threaded rod is in threaded connection with the movable block, so that the movable block moves left and right outside the bidirectional threaded rod, and the movable block can drive the baffle to slide on the outer side of the discharging roller through the connecting rod; and the battery pole piece can be shielded and protected by the baffle, so that the abrasion of the battery pole piece is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of winding machines, in particular to an automatic winding machine for battery pole pieces with adjustable size. Background Art

[0002] The battery pole sheet automatic winding machine is one of the key equipment in the lithium-ion battery production process. It is mainly used to wind the positive and negative pole sheets and separators into battery cells in a certain order.

[0003] During use, the sides of the battery pole pieces are easily worn due to position deviation during automatic winding, which affects the quality of the pole pieces after winding.

[0004] In order to overcome the above-mentioned defects, the prior art (publication number CN209119254U, Chinese patent application date 2018-09-29) is a semi-automatic winding machine for lithium battery pole pieces. Two corresponding first bearing seats are fixedly connected to the top edge of the collection box, and a connecting rod is fixedly connected to the two first bearing seats. The side walls of the connecting rod are slidably sleeved with two symmetrically arranged limit plates. The top end of the collection box away from the first bearing seat is fixedly connected to two corresponding second bearing seats. The inner wall of one of the second bearing seats is rotatably connected to a first screw rod. One end of the first screw rod is fixedly connected to a second screw rod with a rotation direction opposite to that of the first screw rod. The second screw rod is rotatably connected to the inner wall of the other second bearing seat. Corresponding threaded holes are opened on the two limit plates. The two threaded holes are respectively threadedly connected to the first screw rod and the second screw rod, and the two threaded holes are symmetrically arranged. The purpose of preventing the battery pole pieces from being easily worn by the guide rails is achieved by using rolling guide rollers instead of metal plate guide rails.

[0005] The above mechanism uses guide rollers instead of metal plate guide rails to reduce the wear of the battery pole pieces. However, during actual use, the battery pole pieces may still be contaminated by dust, which affects the subsequent quality of the battery pole pieces. Utility Model Content

[0006] The purpose of the present invention is to provide a size-adjustable automatic winding machine for battery pole pieces, so as to solve the problem in the background art that the sides of battery pole pieces are easily worn due to position deviation during automatic winding.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a size-adjustable battery electrode automatic winding machine, comprising a winding machine body, a discharge roller rotatably connected to the left side of the winding machine body, a winding roller rotatably connected to the right side of the winding machine body, and a plurality of adjustment rollers provided at one end between the winding machine bodies;

[0008] Mounting frames are provided at both the front and rear ends of the outer side of the winding roller, and an adjustment mechanism for adjusting the inner size of the electrode sheet winding is provided on the inner side of the mounting frame. The adjustment mechanism includes an air storage bladder, and the air storage bladder is provided on the inner side of the mounting frame. An extrusion block is provided on one side of the air storage bladder, and the right side of the extrusion block is in contact with the left side of the air storage bladder. A second elastic air bag is provided on the outer side of the winding roller;

[0009] A bidirectional threaded rod is provided above the unloading roller, and an anti-wear mechanism for reducing wear of the battery pole pieces is provided on the outside of the unloading roller.

[0010] Furthermore, the extrusion block is slidably connected to the mounting frame, and the extrusion block is symmetrical about the vertical center axis of the winding roller.

[0011] Furthermore, a limiting ring is provided on one side of the second elastic airbag, and the right side of the limiting ring is connected to the air storage capsule through a pipeline.

[0012] Furthermore, the anti-wear mechanism includes a baffle, and the baffle is sleeved on the front and rear ends of the outside of the discharge roller. The front and rear ends of the outside of the bidirectional threaded rod are threadedly connected with a movable block, and the right side of the movable block is connected to the top of the baffle.

[0013] Furthermore, a slide rail is provided below the bidirectional threaded rod, and a slider matching the slide rail is fixedly connected to the bottom end of the movable block, and a sliding structure is formed between the movable block and the slide rail via the slider.

[0014] Furthermore, a dust removal mechanism is provided above the bidirectional threaded rod, and the dust removal mechanism includes an extrusion plate, and the extrusion plate is slidably connected to the interior of the winding machine body, the top end of the movable block is hinged with a hinged rod, and the top end of the hinged rod is hinged to the extrusion plate, and a first elastic airbag is provided at the middle position of the top end of the extrusion plate, and the top end of the first elastic airbag is connected to the top end of the interior of the winding machine body, and a nozzle is provided on the right side of the first elastic airbag.

[0015] Furthermore, connecting springs are provided on both the left and right sides of the top end of the extrusion plate, and an elastic structure is formed between the winding machine body and the extrusion plate through the connecting springs.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The output end of the motor rotates and drives the bidirectional threaded rod to rotate. The bidirectional threaded rod and the movable block are threadedly connected, so that the movable block moves left and right outside the bidirectional threaded rod. The movable block drives the baffle to slide outside the unloading roller through the connecting rod. The baffle can shield and protect the battery pole piece, reducing the wear of the battery pole piece.

[0018] Furthermore, the baffle can also play a role in correcting deviation, reducing the position deviation of the battery electrode during the conveying process, increasing the stability of the battery electrode during unloading, and effectively avoiding the misalignment of the battery electrode during winding;

[0019] Furthermore, when the movable block is driven by the bidirectional threaded rod to move in threaded connection, the hinged rod at the top of the movable block pushes the extrusion plate upward, so that the top of the extrusion plate squeezes the first elastic airbag, causing the gas inside the first elastic airbag to be ejected through the nozzle and blow air to remove dust from the battery electrode sheet placed below, thereby reducing the adsorption of dust on the surface of the battery electrode sheet;

[0020] 2. The motor drives the winding roller to rotate to wind the battery electrode sheet. A pipe connection port is provided on the side of the air storage capsule close to the winding roller. The winding roller pushes the extrusion block to one side and connects the pipe connection port on one side of the limit ring with the pipe connection port of the air storage capsule, thereby fixing the position between the winding roller and the mounting frame. After being squeezed, the extrusion block is reset by the elastic force of the spring, pushing the winding roller to the middle position between the front and rear ends of the winding machine body, making it convenient to wind the battery electrode sheet in the center position.

[0021] Furthermore, the air storage bladder is inflated by an air pump, and the gas enters the interior of the second elastic airbag through the two docking pipe connection ports, thereby causing the second elastic airbag to expand. The battery electrode wound on the outside of the winding roller also contacts the second elastic airbag because of the inner side, thereby adjusting and changing the overall size of the wound battery electrode. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the internal structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the adjustment mechanism of the utility model;

[0026] Figure 5 This is a schematic structural diagram of the anti-wear mechanism of the utility model;

[0027] Figure 6 It is a structural diagram of the anti-wear mechanism and dust removal mechanism of the utility model.

[0028] In the figure: 1. Winder body; 2. Unwinding roller; 3. Adjusting roller; 4. Winding roller; 5. Baffle; 6. Bidirectional threaded rod; 7. Movable block; 8. Articulated rod; 9. Slider; 10. Slide rail; 11. Extrusion plate; 12. First elastic airbag; 13. Connecting spring; 14. Second elastic airbag; 15. Limiting ring; 16. Mounting frame; 17. Extrusion block; 18. Air storage capsule; 19. Nozzle. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1:

[0031] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 6 The technical solution shown is to solve the problem that the sides of the battery pole pieces are easily worn due to position offset during automatic winding: the size-adjustable battery pole piece automatic winding machine discloses an anti-wear mechanism, including a winding machine body 1, the left side of the winding machine body 1 is rotatably connected to a feeding roller 2, the right side of the winding machine body 1 is rotatably connected to a winding roller 4, and a plurality of adjusting rollers 3 are provided at one end between the winding machine bodies 1, a bidirectional threaded rod 6 is provided above the feeding roller 2, and an anti-wear mechanism for reducing the wear of the battery pole pieces is provided on the outside of the feeding roller 2, the anti-wear mechanism includes a baffle 5, and the baffle 5 is sleeved on the front and rear ends of the outside of the feeding roller 2, the front and rear ends of the outside of the bidirectional threaded rod 6 are both threadedly connected to a movable block 7, and the right side of the movable block 7 is connected to the top of the baffle 5, a slide rail 10 is provided below the bidirectional threaded rod 6, and the bottom end of the movable block 7 is fixedly connected to a slider 9 matching the slide rail 10, and a sliding structure is formed between the movable block 7 and the slide rail 10 through the slider 9.

[0032] In this example, the battery electrode sheet is unloaded by using the unloading roller 2, and then the battery electrode sheet passes through the adjusting roller 3 for tension adjustment, and is wound and formed by the winding roller 4. The output end of the motor rotates and drives the bidirectional threaded rod 6 to rotate. The bidirectional threaded rod 6 is threadedly connected to the movable block 7, so that the movable block 7 moves left and right outside the bidirectional threaded rod 6, so that the movable block 7 can drive the baffle 5 to slide outside the unloading roller 2 through the connecting rod. The baffle 5 can shield and protect the battery electrode sheet, thereby reducing the wear of the battery electrode sheet.

[0033] At the same time, the baffle 5 can also play a role in correcting the deviation, reducing the position deviation of the battery electrode during the conveying process, increasing the stability of the battery electrode during the unloading process, and thus effectively avoiding the misalignment of the battery electrode during the winding process;

[0034] When the movable block 7 moves on the outside of the bidirectional threaded rod 6, the slider 9 and the slide rail 10 under the movable block 7 can play a guiding and limiting role, effectively avoiding the angular deviation of the movable block 7 during the movement, and also making the movable block 7 move more smoothly, effectively avoiding the problem of jamming.

[0035] Example 2:

[0036] like Figure 1 、 Figure 2 、 Figure 3 and Figure 6 The technical solution shown is intended to solve the following problems: the size-adjustable battery electrode automatic winding machine discloses a dust removal mechanism, a dust removal mechanism is arranged above the bidirectional threaded rod 6, the dust removal mechanism includes an extrusion plate 11, and the extrusion plate 11 is slidably connected to the inside of the winding machine body 1, the top of the movable block 7 is hinged with a hinged rod 8, and the top of the hinged rod 8 is hinged to the extrusion plate 11, a first elastic airbag 12 is provided at the middle position of the top of the extrusion plate 11, and the top of the first elastic airbag 12 is connected to the top of the inside of the winding machine body 1, a nozzle 19 is provided on the right side of the first elastic airbag 12, and connecting springs 13 are provided on both sides of the top of the extrusion plate 11, and an elastic structure is formed between the winding machine body 1 and the extrusion plate 11 through the connecting spring 13.

[0037] In this example, when the movable block 7 is driven by the bidirectional threaded rod 6 to move in threaded connection, the hinged rod 8 at the top of the movable block 7 will push the extrusion plate 11 upward, so that the top of the extrusion plate 11 will squeeze the first elastic airbag 12, so that the gas inside the first elastic airbag 12 is ejected through the nozzle 19 and blows air to remove dust on the battery pole piece placed below, thereby reducing the adsorption of dust on the surface of the battery pole piece. At the same time, the connecting spring 13 can be used to enable the extrusion plate 11 to drive the first elastic airbag 12 to return to its initial state after resetting.

[0038] Example 3:

[0039] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4The technical solution shown is intended to solve the following problem: the size-adjustable battery electrode automatic winding machine discloses an adjustment mechanism, and mounting frames 16 are provided at both front and rear ends of the outer side of the winding roller 4, and an adjustment mechanism for adjusting the inner size of the electrode winding is provided on the inner side of the mounting frame 16, and the adjustment mechanism includes an air storage bladder 18, and the air storage bladder 18 is provided on the inner side of the mounting frame 16, and an extrusion block 17 is provided on one side of the air storage bladder 18, and the right side of the extrusion block 17 is in contact with the left side of the air storage bladder 18, and a second elastic air bag 14 is provided on the outer side of the winding roller 4, and the extrusion block 17 is slidably connected to the mounting frame 16, and the extrusion block 17 is symmetrical about the vertical center axis of the winding roller 4, and a limiting ring 15 is provided on one side of the second elastic air bag 14, and the right side of the limiting ring 15 is connected to the air storage bladder 18 through a pipeline.

[0040] In this example, the battery electrode can be wound by rotating the winding roller 4 driven by the motor. A pipe connection port is provided on the side of the air storage bladder 18 close to the winding roller 4. The winding roller 4 pushes the extrusion block 17 to one side and docks the pipe connection port on the side of the limit ring 15 with the pipe connection port of the air storage bladder 18, so that the position between the winding roller 4 and the mounting frame 16 is fixed. After being squeezed, the extrusion block 17 is reset by the elastic force of the spring, pushing the winding roller 4 to the middle position of the front and rear ends of the winding machine body 1, and then the air storage bladder 18 is inflated by the air pump. The gas enters the interior of the second elastic airbag 14 through the two docking pipe connections, thereby expanding the second elastic airbag 14, and the battery electrode wound on the outside of the winding roller 4 is also in contact with the second elastic airbag 14 because of the inner side, so that the overall size of the wound battery electrode is adjusted and changed.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A size-adjustable battery electrode automatic winding machine, comprising a winding machine body (1), wherein the left side of the winding machine body (1) is rotatably connected to a feeding roller (2), the right side of the winding machine body (1) is rotatably connected to a winding roller (4), and a plurality of adjusting rollers (3) are provided at one end between the winding machine body (1); Its characteristics are: The front and rear ends of the outer side of the winding roller (4) are both provided with mounting frames (16), and the inner side of the mounting frame (16) is provided with an adjustment mechanism for adjusting the inner size of the pole piece winding, the adjustment mechanism includes an air storage soft capsule (18), and the air storage soft capsule (18) is provided on the inner side of the mounting frame (16), and an extrusion block (17) is provided on one side of the air storage soft capsule (18), and the right side of the extrusion block (17) is in contact with the left side of the air storage soft capsule (18), and the outer side of the winding roller (4) is provided with a second elastic air bag (14); A bidirectional threaded rod (6) is provided above the discharge roller (2), and an anti-wear mechanism for reducing wear of battery pole pieces is provided on the outside of the discharge roller (2).

2. The size-adjustable battery pole piece automatic winding machine according to claim 1, characterized in that: The extrusion block (17) is slidably connected to the mounting frame (16), and the extrusion block (17) is symmetrical about the vertical center axis of the winding roller (4).

3. The size-adjustable battery pole piece automatic winding machine according to claim 2, characterized in that: A limiting ring (15) is provided on one side of the second elastic airbag (14), and the right side of the limiting ring (15) is connected to the air storage soft bag (18) through a pipeline.

4. The size-adjustable battery pole piece automatic winding machine according to claim 1, characterized in that: The anti-wear mechanism includes a baffle (5), and the baffle (5) is sleeved on the front and rear ends of the outside of the discharge roller (2); the front and rear ends of the outside of the bidirectional threaded rod (6) are both threadedly connected to a movable block (7), and the right side of the movable block (7) is connected to the top of the baffle (5).

5. The size-adjustable battery pole piece automatic winding machine according to claim 4, characterized in that: A slide rail (10) is provided below the bidirectional threaded rod (6), and a slider (9) matching the slide rail (10) is fixedly connected to the bottom end of the movable block (7), and a sliding structure is formed between the movable block (7) and the slide rail (10) via the slider (9).

6. The size-adjustable battery pole piece automatic winding machine according to claim 5, characterized in that: A dust removal mechanism is provided above the bidirectional threaded rod (6), and the dust removal mechanism includes an extrusion plate (11), and the extrusion plate (11) is slidably connected to the inside of the winding machine body (1), the top end of the movable block (7) is hinged with a hinge rod (8), and the top end of the hinge rod (8) is hinged to the extrusion plate (11), a first elastic airbag (12) is provided at the middle position of the top end of the extrusion plate (11), and the top end of the first elastic airbag (12) is connected to the top end inside the winding machine body (1), and a nozzle (19) is provided on the right side of the first elastic airbag (12).

7. The size-adjustable battery pole piece automatic winding machine according to claim 6, characterized in that: Connecting springs (13) are provided on both the left and right sides of the top of the extrusion plate (11), and an elastic structure is formed between the winding machine body (1) and the extrusion plate (11) through the connecting springs (13).

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