Coating machine tail edge bulging prevention device and coating machine

Abstract

The utility model discloses a coating machine tail edge bulging prevention device and a coating machine. The coating machine tail edge bulging prevention device comprises a compression roller device and a rotating rod, the rotating rod is arranged above the winding pole roll in parallel, the first end of the pressing roller device is connected to the rotating rod in a sleeving mode, the second end of the pressing roller device is suspended at the edge of the winding pole roll, and when the rotating rod rotates under the action of external force, the second end of the pressing roller device is driven to press downwards and apply pressure to the edge of the winding pole roll. According to the utility model, the edge bulging problem which still cannot be solved by adopting machine head thinning treatment during coating can be solved, the scrap quantity in the trial-manufacturing process is reduced, the uncertainty of manual operation is solved, and the battery production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of coating machines, and particularly relates to an anti-edge-bulging device at the tail of a coating machine and a coating machine. Background Art

[0002] During the coating process of existing lithium / sodium-ion batteries, when winding up after coating and drying, hundreds or thousands of layers of electrode sheets are wound into one roll, and the thickness of the side edges of the coating accumulates to several millimeters, resulting in the edge-bulging phenomenon of the electrode roll. In severe cases, the electrode sheets will break, which seriously affects the winding neatness of the coating and its subsequent processes, causing a large amount of waste. Most of the existing technologies adopt thinning the coating edge at the coating head to improve the edge-bulging problem. However, due to different materials selected during the coating process, some materials still show edge-bulging after the edge-thinning treatment during winding. For such edge-bulging, generally, a person holds a cylindrical object to squeeze the edge of the electrode roll to eliminate the edge-bulging. Summary of the Utility Model

[0003] Technical Problem to be Solved: To solve the edge-bulging problem occurring during the coating process, the utility model provides an anti-edge-bulging device at the tail of a coating machine and a coating machine, which can solve the edge-bulging problem that still cannot be solved by the head-thinning treatment during coating, reduce the waste amount during the trial production process, solve the uncertainty of manual operation, and improve the production efficiency of batteries.

[0004] Technical Solution:

[0005] An anti-edge-bulging device at the tail of a coating machine, the anti-edge-bulging device at the tail of the coating machine includes a pressure roller device and a rotating rod;

[0006] The rotating rod is arranged in parallel obliquely above the wound electrode roll, the first end of the pressure roller device is sleeved on the rotating rod, and the second end is suspended at the edge of the wound electrode roll;

[0007] When the rotating rod rotates under the action of an external force, it drives the second end of the pressure roller device to press down and apply pressure to the edge of the wound electrode roll.

[0008] Further, the anti-edge-bulging device at the tail of the coating machine includes two pressure roller devices, the first ends of the two pressure roller devices are sleeved on the rotating rod in parallel, and the second ends are respectively located at the two edges of the wound electrode roll.

[0009] Further, the pressure roller device includes a pressure roller wall, a fixing screw, a pressure roller outer cover, a central shaft, and a pressure roller;

[0010] The first end of the pressure roller wall is installed on the rotating rod through a fixing screw, and the second end is connected to the outside of the pressure roller outer cover; the central shaft and the pressure roller are both installed inside the pressure roller outer cover, the central shaft passes through the pressure roller and they are coaxial, so that the pressure roller rotates around the central shaft under the action of an external force.

[0011] Further, a groove is provided on the rotating rod along the extending direction; when the fixing screw is tightened, it is embedded in the groove, so that the first end of the roller device is fixed on the rotating rod; when the fixing screw is loosened, there is a gap between the first end of the roller device and the rotating rod, so that the roller device can move horizontally along the rotating rod under the action of an external force.

[0012] Further, a plurality of circular through holes are provided on the roller wall.

[0013] Further, the second end of the roller wall is fixed to the outside of the roller outer cover by welding or screw connection.

[0014] Further, the central shaft is fixed to the inside of the roller outer cover by welding or screw connection.

[0015] Further, the anti-edge bulging device at the tail of the coater includes a controller, and the controller includes a roller control button, a cylinder drive circuit and a cylinder;

[0016] The cylinder is respectively connected to the cylinder drive circuit and the rotating rod. The cylinder drive circuit makes the rotating rod rotate forward or backward through the cylinder according to the control instruction sent by the roller control button, driving the second end of the roller device to press down to apply pressure at the edge of the wound pole roll or to move upward away from the edge of the wound pole roll.

[0017] Further, the roller control button includes an upper roller button for sending a reverse signal and a lower roller button for sending a forward signal.

[0018] In a second aspect, the present utility model discloses a coater, which includes a coater body and the anti-edge bulging device at the tail of the coater as described above.

[0019] Beneficial effects:

[0020] The anti-edge bulging device at the tail of the coater of the present utility model can solve the edge bulging problem that still cannot be solved by using the head thinning treatment during coating, reduce the scrap rate during the trial production process, solve the uncertainty of manual operation, and improve the production efficiency of batteries. Description of the drawings

[0021] Figure 1 It is a schematic structural diagram of the anti-edge bulging device at the tail of the coater of the present utility model;

[0022] Figure 2 It is a schematic structural diagram of the roller device of the present utility model;

[0023] Figure 3 It is a schematic structural diagram of the rotating rod of the present utility model. Detailed implementation manners

[0024] The following embodiments can enable those skilled in the art to understand the present utility model more comprehensively, but do not limit the present utility model in any way.

[0025] See Figure 1 , the present utility model discloses an anti-drum-edge device at the tail of a coater. The anti-drum-edge device at the tail of the coater includes a pressure roller device 100 and a rotating rod 200;

[0026] The rotating rod 200 is arranged parallel to the upper diagonal of the winding reel 300. The first end of the pressure roller device 100 is sleeved on the rotating rod 200, and the second end is suspended at the edge of the winding reel 300;

[0027] When the rotating rod 200 rotates under the action of an external force, it drives the second end of the pressure roller device 100 to press down and apply pressure on the edge of the winding reel 300.

[0028] As Figure 1 shown, the anti-drum-edge device at the tail of the coater includes two pressure roller devices 100. The first ends of the two pressure roller devices 100 are sleeved on the rotating rod 200 in parallel, and the second ends are respectively located at the two edges of the winding reel 300. In actual production, whether to use one or two pressure roller devices 100 is determined according to actual needs.

[0029] As Figure 2 shown, the pressure roller device 100 is composed of a pressure roller wall 101, a fixing screw 102, a pressure roller outer cover 103, a pressure roller 105, and a central shaft 104. The pressure roller wall 101 is fixed to the rotating rod 200 through the fixing screw 102. See Figure 3 , the rotating rod 200 is a metal rod with grooves on it. The combination of the grooves and the fixing screw 102 can realize the connection state between the pressure roller device and the rotating rod. Specifically, when the rotating fixing screw 102 is loosened, a gap appears between the pressure roller device 100 and the rotating rod 200, enabling the pressure roller device 100 to move left and right on the rotating rod 200. When the fixing screw 102 is tightened, the pressure roller device 100 is fixed on the rotating rod 200, so that the rotating rod 200 can drive the pressure roller device 100 to move when it rotates. Preferably, the pressure roller wall 101 and the pressure roller outer cover 103 can be connected by welding, screws, etc. The pressure roller 105 is fixed to the pressure roller outer cover 103 through the central shaft 104, and the pressure roller 105 rotates around the central shaft 104.

[0030] Preferably, a number of circular through-holes are provided on the pressure roller wall. The purpose of providing circular holes on the surface of the pressure roller wall is to reduce the mass of the pressure roller wall 101 and increase the strength of the pressure roller wall 101.

[0031] As for the connection methods of other components, the second end of the pressure roller wall is fixed to the outside of the pressure roller outer cover by welding or screwing. The central shaft is fixed to the inside of the pressure roller outer cover by welding or screwing.

[0032] As Figure 1 shown, the anti-drum-edge device at the tail of the coater includes a controller, and the controller includes a pressure roller control button, a cylinder drive circuit, and a cylinder; the cylinder is respectively connected to the cylinder drive circuit and the rotating rod. The cylinder drive circuit makes the rotating rod rotate forward or backward through the cylinder according to the control instruction sent by the pressure roller control button, driving the second end of the pressure roller device to press down to apply pressure at the edge of the wound pole coil or to move upward away from the edge of the wound pole coil. The pressure roller control button includes a pressure roller up button for sending a reverse signal and a pressure roller down button for sending a forward signal. The cylinder here can also be replaced with a motor, as long as it can adjust the rotation speed and direction of the rotating rod 200 according to the control signal sent by the external button, and thus realize the up and down pressure of the pressure roller device 100.

[0033] In this embodiment, each structural member can be made of metal or non-metal, and there is no special limitation on the material, as long as the structural strength is sufficient.

[0034] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should be regarded as within the protection scope of the present invention.

Claims

1. A device for preventing the edge of the coating machine tail from bulging, characterized in that, The anti-edge bulging device at the tail of the coater includes a pressure roller device and a rotating rod; The rotating rod is arranged in parallel obliquely above the winding pole roll. The first end of the pressure roller device is sleeved on the rotating rod, and the second end is suspended at the edge of the winding pole roll; When the rotating rod rotates under the action of an external force, it drives the second end of the pressure roller device to press down and apply pressure at the edge of the winding pole roll.

2. The anti-drum-edge device at the tail of the coater according to claim 1, wherein The anti-edge bulging device at the tail of the coater includes two pressure roller devices. The first ends of the two pressure roller devices are sleeved on the rotating rod in parallel, and the second ends are respectively located at the two edges of the winding pole roll.

3. The edge anti-drum device at the tail of the coater according to claim 1, characterized in that, The pressure roller device includes a pressure roller wall, fixing screws, a pressure roller outer cover, a central shaft and a pressure roller; The first end of the pressure roller wall is installed on the rotating rod through the fixing screws, and the second end is connected to the outside of the pressure roller outer cover; the central shaft and the pressure roller are both installed inside the pressure roller outer cover, and the central shaft passes through the pressure roller and they are coaxial, so that the pressure roller rotates around the central shaft under the action of an external force.

4. The edge anti-drum device at the tail of the coater according to claim 3, characterized in that, A groove is provided on the rotating rod along the extending direction; when the fixing screws are tightened, they are embedded in the groove, so that the first end of the pressure roller device is fixed on the rotating rod; when the fixing screws are loosened, there is a gap between the first end of the pressure roller device and the rotating rod, so that the pressure roller device moves horizontally along the rotating rod under the action of an external force.

5. The anti-drum-edge device at the tail of the coater according to claim 3, characterized in that, A number of circular through holes are provided on the pressure roller wall.

6. The anti-drum-edge device at the tail of the coater according to claim 3, characterized in that, The second end of the pressure roller wall is fixed to the outside of the pressure roller outer cover by welding or screw connection.

7. The tail anti-bulging edge device of the coater according to claim 3, characterized in that The central shaft is fixed to the inside of the pressure roller outer cover by welding or screw connection.

8. The anti-drum-edge device at the tail of the coater according to claim 1, characterized in that The anti-edge bulging device at the tail of the coater includes a controller, and the controller includes a pressure roller control button, a cylinder drive circuit and a cylinder; The cylinder is respectively connected to the cylinder drive circuit and the rotating rod. The cylinder drive circuit makes the rotating rod rotate forward or backward through the cylinder according to the control instruction sent by the pressure roller control button, driving the second end of the pressure roller device to press down to apply pressure at the edge of the winding pole roll or to move upward away from the edge of the winding pole roll.

9. The coating machine tail anti-drum edge device according to claim 8, characterized in that, The pressure roller control button includes a pressure roller up button for sending a reverse signal and a pressure roller down button for sending a forward signal.

10. A coater, characterized in that, The coater includes a coater body and the anti-edge bulging device at the tail of the coater as described in any one of claims 1-9.

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