Self-cleaning coating machine for battery cell production

Abstract

The utility model discloses a self-cleaning coating machine for battery cell production, which relates to the technical field of battery cell production and comprises a coating machine body, a plurality of groups of tensioning rollers are rotatably connected to the middle inside the coating machine body, and an adjusting roller is rotatably connected to the inside of the coating machine body on the right side of the tensioning rollers. Rotating rollers are rotationally connected to the left side and the right side of the interior of the coating machine body, fixing rods are arranged at the front ends and the rear ends of the two sides of the interior of the coating machine body, and the front ends of the fixing rods are sleeved with deviation correcting mechanisms for preventing the positions of the battery cell pole pieces from deviating. According to the self-cleaning coating machine for battery cell production, a deviation rectifying plate is arranged on the outer side of a rotating roller, a battery cell can be limited, meanwhile, the deviation rectifying plate can be reset in time when pushed by the battery cell through the elasticity of a connecting spring on the outer side of a fixing rod, and therefore the deviation rectifying effect of the device in the using process is stably achieved; and the winding angle deviation after the battery cell is coated with the slurry is effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of battery cell production, and specifically relates to a self-cleaning coating machine for battery cell production. BACKGROUND

[0002] The battery cell coating machine is mainly used for uniformly coating battery slurry on electrode materials such as copper foil or aluminum foil to form electrode sheets. It is one of the key devices in the battery manufacturing process and has a direct impact on the performance and quality of the battery.

[0003] During use, the coating machine needs to discharge and wind the electrode sheet during use. During continuous conveying, the electrode sheet position is prone to deviation, affecting the winding quality of the electrode sheet.

[0004] To overcome the above-mentioned defects, the prior art (Chinese patent with publication number CN207857286U and application date of December 29, 2017) is a lithium battery cell coating machine. It comprises a rack, a detection device and an adjusting device; the detection device and the adjusting device are signal connected; the detection device is used to detect whether the two sides of the battery cell are deviated, and the adjusting device is used to adjust the movement trajectory of the battery cell. It solves the technical problem that the existing coating machine is prone to deviation when coating the lithium battery cell.

[0005] The above-mentioned mechanism adjusts the position of the battery cell by using the detection device and the adjusting device, thereby preventing the battery cell from deviating. However, in actual use, dust and impurities may be adsorbed on the surface of the battery cell, affecting the subsequent production quality of the battery cell. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a self-cleaning coating machine for battery cell production to solve the problem of electrode sheet position deviation during continuous conveying of the battery cell as described in the background.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a self-cleaning coating machine for battery cell production, comprising a coating machine body, a plurality of tensioning rollers are rotatably connected at the middle position inside the coating machine body, an adjusting roller is rotatably connected inside the coating machine body on the right side of the tensioning roller, and rotating rollers are rotatably connected on the left and right sides inside the coating machine body;

[0008] Fixed rods are arranged at the front and rear ends of the two sides inside the coating machine body, a deviation correcting mechanism for preventing the position deviation of the battery cell electrode sheet is sleeved on the front end of the fixed rod, the deviation correcting mechanism comprises a deviation correcting plate, the deviation correcting plate is sleeved on the front and rear ends outside the rotating roller, and the deviation correcting plate and the fixed rod are slidingly connected;

[0009] The left side in the coating machine body is provided with a mounting frame, and the mounting frame is provided with a dust removal mechanism for removing impurities on the surface of the battery cell.

[0010] Further, the outer side of the fixing rod is wound with a connecting spring, and the coating machine body and the deviation rectifying plate constitute an elastic structure through the connecting spring.

[0011] Further, the dust removal mechanism comprises a fan, and the fan is arranged at the front and back ends of the right side of the mounting frame.

[0012] Further, the right side of the mounting frame is provided with a heating wire, and the heating wire is arranged at the left side of the rotating roller.

[0013] Further, the left side of the rotating rod passes through and extends to the left side of the mounting frame, and the left side of the rotating rod is connected with the left side of the fan through a belt transmission mechanism.

[0014] Further, the front and back ends of the tensioning roller are provided with auxiliary aligning mechanisms, the auxiliary aligning mechanisms comprise cams, and the cams are rotatably connected to the left and right sides outside the coating machine body.

[0015] Further, the left side of the second extrusion block is parallel to the right side of the first extrusion block, and the top view of the first extrusion block is trapezoidal.

[0016] Compared with the prior art, the coating machine has the advantages that:

[0017] 1. The rotating roller can be used for discharging and winding the battery cell, and the tensioning roller inside the coating machine body can be used for tensioning adjustment when the battery cell passes through the tensioning roller, so that the deviation of the battery cell caused by too loose or too tight during conveying can be avoided.

[0018] Further, the deviation rectifying plate arranged at the outer side of the rotating roller can be used for limiting the battery cell, and the elasticity of the connecting spring at the outer side of the fixing rod can be used for resetting the deviation rectifying plate in time when the deviation rectifying plate is pushed by the battery cell, so that the deviation rectifying effect of the device during use can be stably realized, and the deviation of the winding angle of the battery cell after coating the slurry can be effectively avoided.

[0019] Further, the deviation rectifying plate pulls the traction rope in the moving process, the traction rope is continuously pulled, the rotating rod is driven to rotate, the rotating rod drives the fan to rotate through the belt transmission mechanism in the rotating process, the fan can blow the winding cell pole outside the rotating roller, the heating wire can heat the winding cell pole, thereby assisting the drying treatment, and the cell is conveniently processed.

[0020] 2. When the cell is tensioned and adjusted by the tensioning roller, the tensioning roller drives the cam to rotate through the belt transmission mechanism in the continuously rotating process, the cam continuously pushes the advancing rod to the left side in the rotating process, the second extrusion block on one side of the advancing rod is pushed out, and the first extrusion block on the left side of the second extrusion block is also pushed and drives the deviation rectifying plate.

[0021] Further, the rotating roller winds and unwinds the cells of different sizes through the movement of the deviation rectifying plate, the movable distance of the deviation rectifying plate is controlled by the length of the fixed rod and the length of the cam, and different lengths of the fixed rod and the cam can be selected according to different cell size requirements. BRIEF DESCRIPTION OF DRAWINGS

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

[0023] Figure 2 It is a front view sectional view structural schematic diagram of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the deviation rectifying mechanism and dust removal mechanism of the utility model;

[0025] Figure 4 It is a structural schematic diagram of the deviation rectifying mechanism and auxiliary aligning mechanism of the utility model;

[0026] Figure 5 It is a structural schematic diagram of the dust removal mechanism of the utility model;

[0027] Figure 6 It is a structural schematic diagram of the auxiliary aligning mechanism of the utility model;

[0028] Figure 7 It is a structural schematic diagram of the dust removal mechanism of the utility model.

[0029] In the drawing: 1, coating machine body; 2, rotating roller; 3, tensioning roller; 4, adjusting roller; 5, deviation rectifying plate; 6, fixed rod; 7, connecting spring; 8, first extrusion block; 9, second extrusion block; 10, advancing rod; 11, cam; 12, mounting frame; 13, fan; 14, heating wire; 15, rotating rod; 16, traction rope. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0031] Embodiment one:

[0032] As Figures 1-4 shown, in order to solve the problem that the electrode sheet position is easy to deviate during continuous conveying of the battery cell, the self-cleaning coating machine for battery cell production discloses a deviation rectifying mechanism, which comprises a coating machine body 1, a plurality of tension rollers 3 are rotationally connected at the middle position inside the coating machine body 1, an adjusting roller 4 is rotationally connected inside the coating machine body 1 at the right side of the tension roller 3, and rotating rollers 2 are rotationally connected at the left and right sides inside the coating machine body 1, fixed rods 6 are arranged at the front and rear ends of the left and right sides inside the coating machine body 1, a deviation rectifying mechanism for preventing the position deviation of the electrode sheet of the battery cell is sleeved at the front end of the fixed rod 6, the deviation rectifying mechanism comprises a deviation rectifying plate 5, the deviation rectifying plate 5 is sleeved at the front and rear ends outside the rotating roller 2, the deviation rectifying plate 5 and the fixed rod 6 are in sliding connection, a connecting spring 7 is wound outside the fixed rod 6, and the coating machine body 1 and the deviation rectifying plate 5 constitute an elastic structure through the connecting spring 7.

[0033] In this example, the rotating roller 2 can be used for unwinding and winding the battery cell, then the slurry spraying mechanism is used for spraying the slurry on the surface of the battery cell, and the tension adjusting effect can be achieved by the tension roller 3 inside the coating machine body 1, so that the deviation of the battery cell conveying caused by too loose or too tight of the battery cell during conveying can be avoided;

[0034] The deviation rectifying plate 5 is arranged outside the rotating roller 2, which can be used for limiting the battery cell, and the elasticity of the connecting spring 7 outside the fixed rod 6 can also reset the deviation rectifying plate 5 in time when the deviation rectifying plate 5 is pushed by the battery cell, so that the deviation rectifying effect of the device during use can be stably achieved, and the deviation of the winding angle of the battery cell after the slurry is applied can be effectively avoided.

[0035] Embodiment two:

[0036] As Figures 1-5 and Figure 7The technical scheme shown, in order to solve the problem that the surface of the battery cell is easy to be contaminated during conveying: the self-cleaning coating machine for battery cell production discloses a dust removal mechanism, the left side of the coating machine body 1 is provided with a mounting frame 12, and the mounting frame 12 is provided with a dust removal mechanism for removing impurities on the surface of the battery cell, the dust removal mechanism comprises a fan 13, and the fan 13 is arranged at the front and rear ends of the right side of the mounting frame 12, the right side of the mounting frame 12 is rotatably connected with a rotating rod 15, and the outer side of the rotating rod 15 is wound with a traction rope 16, one end of the traction rope 16 is connected with the deviation correcting plate 5, the right side of the mounting frame 12 is provided with a heating wire 14, and the heating wire 14 is arranged at the left side of the rotating roller 2, the left side of the rotating rod 15 passes through and extends to the left side of the mounting frame 12, and the left side of the rotating rod 15 is connected with the left side of the fan 13 through a belt transmission mechanism.

[0037] In this example, the deviation correcting plate 5 can drive the deviation correcting plate 5 to move continuously by using the auxiliary aligning mechanism, so that the deviation correcting plate 5 pulls the traction rope 16 during movement. Since the traction rope 16 is continuously pulled, the rotating rod 15 is driven to rotate, and the rotating rod 15 can drive the fan 13 to rotate through the belt transmission mechanism during rotation, so that the fan 13 can blow the battery cell pole piece wound outside the rotating roller 2, and the heating wire 14 can heat the battery cell pole piece during winding, thereby assisting in realizing drying treatment, and facilitating better processing of the battery cell.

[0038] Embodiment three:

[0039] As Figures 1-4 and Figure 6 The technical scheme shown, in order to solve the problem that the deviation correcting mechanism cannot adapt to different sizes of battery cells during use: the self-cleaning coating machine for battery cell production discloses an aligning auxiliary mechanism, the front and rear ends of the tensioning roller 3 are provided with auxiliary aligning mechanisms, the auxiliary aligning mechanisms comprise a cam 11, and the cam 11 is rotatably connected to the left and right sides outside the coating machine body 1, the two ends of the deviation correcting plate 5 are provided with first extrusion blocks 8, and the first extrusion blocks 8 extend to the outside of the coating machine body 1, the left side of the coating machine body 1 outside the left side of the cam 11 is slidably connected with a pushing rod 10, and the left side of the pushing rod 10 is provided with a second extrusion block 9, the left side of the second extrusion block 9 and the right side of the first extrusion block 8 are parallel to each other, and the top view of the first extrusion block 8 is trapezoidal.

[0040] In the example, when the tension roller 3 is adjusted for tensioning the battery cell, the tension roller 3 can drive the cam 11 to rotate through the belt transmission mechanism in the process of continuous rotation, the cam 11 continuously pushes the push rod 10 to the left side when rotating, and then the second extrusion block 9 on one side of the push rod 10 is pushed out, and at the same time the first extrusion block 8 on the left side of the second extrusion block 9 is also pushed, and the first extrusion block 8 pushes the correction plate 5, so that the correction plate 5 can realize auxiliary alignment, and then realize the alignment treatment of different size battery cell pole pieces, and the size of the cam 11 needs to be replaced according to the size requirement of different battery cell pole pieces, so as to control the moving distance and extrusion distance of the first extrusion block 8 and the second extrusion block 9 each time;

[0041] The movement of the correction plate 5 can make the rotating roller 2 wind and unwind the battery cell of different sizes, and the movable distance of the correction plate 5 is controlled by the length of the fixed rod 6 and the length of the cam 11, so that different lengths of the fixed rod 6 and the cam 11 can be selected according to the size requirement of different battery cells.

[0042] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning coating machine for battery cell production, comprising a coating machine body (1), a plurality of tensioning rollers (3) are rotatably connected at the middle position inside the coating machine body (1), an adjusting roller (4) is rotatably connected inside the coating machine body (1) on the right side of the tensioning rollers (3), and rotating rollers (2) are rotatably connected inside the coating machine body (1) on the left and right sides; characterized in that Both ends of the coating machine body (1) on the left and right sides are provided with fixed rods (6), and the front end of the fixed rod (6) is provided with a deviation correction mechanism for preventing the position deviation of the battery cell pole piece, the deviation correction mechanism comprises a deviation correction plate (5), and the deviation correction plate (5) is provided on the front and rear ends outside the rotating roller (2), and the deviation correction plate (5) and the fixed rod (6) are connected in sliding mode; A mounting bracket (12) is arranged on the left side of the coating machine body (1), and a dust removal mechanism for removing impurities on the surface of the battery cell is arranged on one side of the mounting bracket (12).

2. The self-cleaning coating machine for battery cell production according to claim 1, characterized in that: The outer side of the fixed rod (6) is wound with a connecting spring (7), and the coating machine body (1) and the deviation correction plate (5) constitute an elastic structure through the connecting spring (7).

3. The self-cleaning coating machine for battery cell production of claim 1, wherein: The dust removal mechanism comprises a fan (13), and the fan (13) is arranged on the front and rear ends of the right side of the mounting bracket (12), a rotating rod (15) is rotatably connected to the right side of the mounting bracket (12), a traction rope (16) is wound on the outer side of the rotating rod (15), and one end of the traction rope (16) is connected with the deviation correction plate (5).

4. The self-cleaning coating machine for battery cell production according to claim 3, characterized in that: A heating wire (14) is arranged on the right side of the mounting bracket (12), and the heating wire (14) is arranged on the left side of the rotating roller (2).

5. The self-cleaning coating machine for battery cell production according to claim 4, characterized in that: The left side of the rotating rod (15) penetrates and extends to the left side of the mounting bracket (12), and the left side of the rotating rod (15) and the left side of the fan (13) are connected through a belt transmission mechanism.

6. The self-cleaning coating machine for battery cell production of claim 1, wherein: Both ends of the tensioning roller (3) are provided with an auxiliary aligning mechanism, the auxiliary aligning mechanism comprises a cam (11), the cam (11) is rotatably connected on the left and right sides outside the coating machine body (1), both ends of the deviation correction plate (5) are provided with a first extrusion block (8), the first extrusion block (8) penetrates and extends to the outside of the coating machine body (1), a pushing rod (10) is slidably connected to the outside of the coating machine body (1) on the left side of the cam (11), and a second extrusion block (9) is mounted on the left side of the pushing rod (10).

7. The self-cleaning coating machine for battery cell production according to claim 6, characterized in that: The left side of the second extrusion block (9) and the right side of the first extrusion block (8) are parallel to each other, and the top view of the first extrusion block (8) is trapezoidal.

Images