CN219191265U

CN219191265U - Wet film synchronous stretcher for lithium battery production

Info

Publication number: CN219191265U
Application number: CN202320256208.4U
Authority: CN
Inventors: 许成伟; 张凯
Original assignee: Jiujiang Atop New Materials Co ltd
Current assignee: Jiujiang Atop New Materials Co ltd
Priority date: 2023-02-20
Filing date: 2023-02-20
Publication date: 2023-06-16
Anticipated expiration: 2033-02-20

Abstract

The utility model relates to the technical field of lithium battery diaphragms, in particular to a wet film synchronous stretcher for lithium battery production. The utility model provides a wet film synchronous stretcher suitable for lithium battery production with different thicknesses, which comprises a mounting frame, a screw rod, guide rods, compression rods, lifting columns, springs and the like, wherein the guide rods are symmetrically fixed on two sides of the upper part of the mounting frame in the length direction, the guide rods are connected with the compression rods in a sliding mode, the screw rods are connected with the tops of the guide rods in a threaded mode, the screw rods are rotatably connected with the lifting columns penetrating through the connecting compression rods, the springs are arranged between the lifting columns and the compression rods, and the springs are sleeved on the lifting columns. Through rotating the screw rod for the screw rod can the downwardly moving, makes lift post compression spring, and the spring can produce outside tension, and then extrudees the depression bar and downwardly move, finally makes first gyro wheel be close to the second gyro wheel slowly, changes the clearance between first gyro wheel and the second gyro wheel, realizes stretching the wet film of different thickness.

Description

Wet film synchronous stretcher for lithium battery production

Technical Field

The utility model relates to the technical field of lithium battery diaphragms, in particular to a wet film synchronous stretcher for lithium battery production.

Background

The wet film is one of the key inner layer components in the structure of the lithium battery, is an industrial product with high added value, and has the functions of separating and recycling the anode and the cathode of the battery to prevent short circuit, and meanwhile, ions in the electrolyte can form a passage through the diaphragm; the wet film has the characteristics of transmittance, thickness, mechanical strength and the like, which influence the charge and discharge performance, safety performance and the like of the battery, and greatly contributes to the overall performance of the battery.

In the face of lithium batteries with different sizes, the required wet film is not identical in size, the wet film is required to be stretched, the area of the wet film is larger, the wet film can adapt to lithium batteries with different sizes, the wet film is different in thickness, the wet film stretching device is suitable for different performances of the lithium batteries, the existing wet film stretching device is not provided with a wet film mechanism capable of adjusting and placing different thicknesses, further the wet film with different thicknesses cannot be stretched, and the stretched wet film is single in thickness.

Therefore, a wet film synchronous stretcher suitable for lithium battery production with different thicknesses is needed to be arranged.

Disclosure of Invention

In order to overcome the defect that a wet film stretching device cannot stretch wet films with different thicknesses and has single thickness for stretching the wet films, the utility model provides the wet film synchronous stretcher which can be suitable for producing lithium batteries with different thicknesses.

The utility model provides a synchronous stretcher of wet film for lithium cell production, which comprises a mounting rack, the dead lever, first gyro wheel, first motor, first belt pulley, first flat belt, the guide bar, the depression bar, the second gyro wheel, the second motor, the second belt pulley, the screw rod, lift post and spring, mounting bracket length direction's inner wall bilateral symmetry is provided with the dead lever, the one end rotation type that the mounting bracket was kept away from to the dead lever is provided with first gyro wheel, first motor is installed to the dead lever bottom, first motor output shaft has first belt pulley, be connected with first flat belt between first belt pulley and the first gyro wheel, mounting bracket length direction's upper portion bilateral symmetry is fixed with the guide bar, the guide bar slidingtype is connected with the depression bar, guide bar one end rotation type is provided with the second gyro wheel, the second motor is installed to the depression bar top, second motor output shaft has the second belt pulley, be connected with the second flat belt between second belt pulley and the second gyro wheel, the second gyro wheel is located first gyro wheel and contacts the cooperation with it, guide bar top threaded connection has the screw rod, with the lift post is connected with the lift post in the rotation of running through, be provided with the spring housing between the lift post.

In a preferred embodiment of the present utility model, the present utility model further comprises a first support cylinder, a second support cylinder, a motor, a first rotation shaft, a gear and a second rotation shaft, wherein the first support cylinder is arranged at one side of the width direction of the mounting frame, the second support cylinder is arranged below the rear part of the first support cylinder, the second support cylinder is mounted on the mounting frame, the first rotation shaft is arranged on the mounting frame, the second rotation shaft is arranged below the first rotation shaft, the second rotation shaft is mounted on the mounting frame, the first rotation shaft is in contact with the second rotation shaft, one end of the first rotation shaft is connected with an output shaft of the motor arranged on the mounting frame, the other end of the first rotation shaft is provided with a main gear, and one end of the second rotation shaft is provided with a driven gear meshed with the main gear.

In a preferred embodiment of the utility model, the device further comprises a supporting rod and a controller, wherein the supporting rod is fixed on one side of the mounting frame, which is far away from the first supporting cylinder, and the controller is arranged above the supporting rod.

In a preferred embodiment of the utility model, the device further comprises a support frame and a heating pipe, wherein the support frame is arranged above the support frame, the heating pipe is connected between the support frames, and the heating pipe is arranged above the compression rod.

In a preferred embodiment of the utility model, the temperature sensor is arranged on the first support cylinder, and the temperature sensor is arranged on one side of the first support cylinder.

In a preferred embodiment of the utility model, the heating pipe further comprises a protective net, the protective net is arranged on the outer surface of the heating pipe, and the protective net is arranged on the supporting frame.

In a preferred embodiment of the present utility model, the present utility model further comprises an anti-slip cover, and the first rotation shaft is externally sleeved with the anti-slip cover.

In a preferred embodiment of the utility model, the utility model further comprises a warning board and a warning lamp, wherein the warning board is arranged on one side of the support frame, and the warning lamp is arranged above the support frame.

In a preferred embodiment of the utility model, the utility model further comprises a rubber pad, and the rubber pad is sleeved at the bottom of the mounting frame.

The beneficial effects of the utility model are as follows:

through rotating the screw rod for the screw rod can the downwardly moving, makes lift post compression spring, and the spring can produce outside tension, and then extrudees the depression bar downwardly moving, finally makes first gyro wheel be close to the second gyro wheel slowly, changes the clearance between first gyro wheel and the second gyro wheel, realizes carrying out the high-efficient tensile function to the wet film of different thickness.

Drawings

Fig. 1 is a schematic perspective view of parts such as a mounting rack and a fixing rod.

Fig. 2 is a schematic diagram of the three-dimensional structure of the parts such as the compression bar and the screw rod of the utility model.

Fig. 3 is a schematic view of a partial perspective structure of the present utility model.

Fig. 4 is a schematic perspective view of the components such as the first support cylinder and the second support cylinder of the present utility model.

Fig. 5 is a schematic perspective view of the components such as the first rotating shaft and the second rotating shaft of the present utility model.

Fig. 6 is a schematic perspective view of the present utility model.

Fig. 7 is a schematic perspective view of the heater, temperature detector and other parts of the present utility model.

Fig. 8 is a schematic perspective view of the components such as the protection net and the warning sign.

The marks in the drawings are: 1-mounting frame, 2-supporting rod, 3-controller, 4-dead lever, 5-first gyro wheel, 6-first motor, 7-first belt pulley, 8-first flat belt, 9-guide bar, 10-depression bar, 11-second gyro wheel, 12-second motor, 13-second belt pulley, 14-second flat belt, 15-screw rod, 16-lifting column, 17-spring, 18-supporting frame, 19-heating pipe, 20-first supporting cylinder, 21-second supporting cylinder, 22-motor, 23-first axis of rotation, 24-antiskid cover, 25-gear, 26-second axis of rotation, 270-heater, 271-temperature detector, 272-display screen, 28-protection network, 29-warning board, 30-warning lamp, 31-rubber pad.

Detailed Description

The utility model is further described below with reference to the drawings and examples.

Example 1

The wet film synchronous stretcher for lithium battery production comprises a mounting frame 1, a fixed rod 4, a first roller 5, a first motor 6, a first belt pulley 7, a first flat belt 8, a guide rod 9, a compression rod 10, a second roller 11, a second motor 12, a second belt pulley 13, a second flat belt 14, a screw 15, a lifting column 16, a spring 17, a supporting frame 18, a heating pipe 19, a first supporting cylinder 20, a second supporting cylinder 21, a motor 22, a first rotating shaft 23, a gear 25 and a second rotating shaft 26, wherein the fixed rod 4 is symmetrically arranged on two sides of the inner wall of the funnel-shaped mounting frame 1 in the length direction, one end of the fixed rod 4 far away from the mounting frame 1 is rotatably provided with the first roller 5, the first motor 6 is arranged at the bottom of the fixed rod 4, the output shaft of the first motor 6 is connected with the first belt pulley 7, the first flat belt 8 is connected between the first belt pulley 7 and the first roller 5, the first flat belt 8 can transmit force, the guide rod 9 is symmetrically fixed on the two sides of the upper part of the length direction of the mounting frame 1, the guide rod 9 is connected with a compression rod 10 in a sliding way, the guide rod 9 can move up and down, one end of the compression rod 10 far away from the guide rod 9 is rotatably provided with a second roller 11, a second motor 12 is arranged above the compression rod 10, the output shaft of the second motor 12 is connected with a second belt pulley 13, a second flat belt 14 is connected between the second belt pulley 13 and the second roller 11, the second roller 11 is positioned right above the first roller 5 and is in contact fit with the first roller, the two rollers rotate in opposite directions and perform relative friction to transversely stretch a wet film, the top of the guide rod 9 is connected with a vertical screw 15 in a threaded way, the screw 15 is rotatably connected with a lifting column 16 penetrating through the connection compression rod 10, a spring 17 is arranged between the lifting column 16 and the compression rod 10, the spring 17 cover twines in lift post 16, mounting bracket 1 top is provided with support frame 18, be connected with a plurality of heating pipes 19 between the support frame 18, heating pipe 19 can provide the heat, make wet film soften, it is more tensile to stretch easily, heating pipe 19 is located depression bar 10 top, one side of mounting bracket 1 width direction is provided with first support section of thick bamboo 20, first support section of thick bamboo 20 rear portion below is provided with second support section of thick bamboo 21, second support section of thick bamboo 21 installs on mounting bracket 1, second support section of thick bamboo 21 rear portion is provided with first axis of rotation 23, first axis of rotation 23 installs on mounting bracket 1, first axis of rotation 23 below is provided with second axis of rotation 26, second axis of rotation 26 installs on mounting bracket 1, first axis of rotation 23 and second axis of rotation 26 contact, make wet film extrude, the one end of first axis of rotation 23 and the motor 22 output shaft connection that sets up on mounting bracket 1, the first axis of rotation 23 other end is provided with master gear 25, second axis of rotation 26 one end is provided with the driven gear 25 with master gear 25 meshing with master gear 25.

When the wet film for lithium battery production needs to be stretched, the wet film is fed between the first roller 5 and the second roller 11 through a conveying belt, a heating pipe 19 is started, the heating pipe 19 emits heat to soften the wet film so as to be stretched better, the first motor 6 and the second motor 12 are started, the first motor 6 drives an output shaft to drive the first belt pulley 7 to rotate positively, the force is transmitted to the first roller 5 through the first flat belt 8 so that the first roller 5 rotates positively, meanwhile, the second motor 12 drives the output shaft to drive the second belt pulley 13 to rotate positively, the force is transmitted to the second roller 11 through the second flat belt 14 so that the second roller 11 rotates reversely, the first roller 5 and the second roller 11 slide relatively, the wet film entering between the first roller 5 and the second roller 11 rubs relatively, the wet film stretches transversely, the inlet of the mounting frame 1 is in a funnel shape, the inlet is small when entering, the outlet is large, and the wet film is stretched transversely according to the method step by step after entering; when the wet film is transversely widened, a worker winds the transversely widened wet film around the first supporting cylinder 20 and then winds upwards around the second rotating shaft 26, and finally, the wet film is fed between the first rotating shaft 23 and the second rotating shaft 26, the motor 22 is started, an output shaft of the motor 22 drives the first rotating shaft 23 to rotate and simultaneously drives the main gear 25 to rotate, the main gear 25 is meshed with the driven gear 25, so that the driven gear 25 is driven, the force is further transmitted to the second rotating shaft 26 to drive the second rotating shaft 26 to rotate, and the first rotating shaft 23 and the second rotating shaft 26 rotate and squeeze simultaneously, so that the transversely widened wet film can be widened, and synchronous stretching of the wet film is realized; when the wet film with different thickness needs to be stretched, the gap between the first roller 5 and the second roller 11 needs to be adjusted, the screw 15 is rotated, the screw 15 moves downwards, the lifting column 16 moves downwards along with the screw 15, the lifting column 16 compresses the spring 17, the spring 17 generates outward tension, the pressing rod 10 is further pressed to move downwards, the first roller 5 is finally made to be slowly close to the second roller 11, the gap between the first roller 5 and the second roller 11 is changed, and the wet film with different thickness is stretched.

Example 2

On the basis of embodiment 1, as shown in fig. 7, the device further comprises a heater 270, a temperature detector 271 and a display screen 272, wherein the heater 270 is arranged in the first support cylinder 20, the temperature detector 271 is arranged on one side of the first support cylinder 20, the display screen 272 is arranged on the mounting frame 1, and the display screen 272 and the first support are in the same straight line.

The heater 270 in the first support cylinder 20 is started to avoid the temperature reduction to reduce the toughness of the wet film, that is, the heater 270 can continuously provide heat, and meanwhile, the temperature detector 271 can sense the internal temperature, and the temperature can be monitored constantly through the display screen 272 to avoid the damage of the wet film caused by overhigh temperature.

As shown in fig. 6, the heating pipe 19 also comprises a protective net 28, the protective net 28 is arranged on the outer surface of the heating pipe 19, and the protective net 28 is arranged on the supporting frame 18.

The protective net 28 isolates the heating pipe 19, so that severe scalding caused by the fact that a worker touches the heating pipe 19 is avoided.

As shown in fig. 5, the anti-slip cover 24 is further included, and the anti-slip cover 24 is sleeved outside the first rotating shaft 23.

The anti-skid sleeve 24 can increase the friction force of the first rotating shaft 23 and can stretch the wet film better.

As shown in fig. 1, the device further comprises a supporting rod 2 and a controller 3, wherein the supporting rod 2 is fixed on one side of the mounting frame 1 far away from the first supporting cylinder 20, and the controller 3 is arranged above the supporting rod 2.

As shown in fig. 8, the portable electronic device further comprises a warning board 29 and a warning lamp 30, wherein the warning board 29 is arranged on one side of the supporting frame 18, and the warning lamp 30 is arranged above the supporting frame 18.

As shown in fig. 6, the device further comprises a rubber pad 31, and the rubber pad 31 is sleeved at the bottom of the mounting frame 1.

The technical principles of the embodiments of the present utility model are described above in connection with specific embodiments. The description is only intended to explain the principles of the embodiments of the utility model and should not be taken in any way as limiting the scope of the embodiments of the utility model. Based on the explanations herein, those skilled in the art will recognize other embodiments of the present utility model without undue burden, and those ways that are within the scope of the present utility model.

Claims

1. The utility model provides a synchronous stretcher of wet film for lithium cell production, including mounting bracket (1), dead lever (4), first gyro wheel (5), first motor (6), first belt pulley (7) and first flat belt (8), the inner wall bilateral symmetry of mounting bracket (1) length direction is provided with dead lever (4), the one end that mounting bracket (1) was kept away from to dead lever (4) is provided with first gyro wheel (5) rotationally, first motor (6) are installed to dead lever (4) bottom, first motor (6) output shaft has first belt pulley (7), be connected with first flat belt (8), characterized by between first belt pulley (7) and first gyro wheel (5): the novel lifting device comprises a mounting frame (1), and is characterized by further comprising a second roller (11), a second motor (12), a second belt pulley (13), a second flat belt (14), a guide rod (9), a pressing rod (10), a screw rod (15), a lifting column (16) and a spring (17), wherein the guide rod (9) is symmetrically fixed on the two sides of the upper portion of the length direction of the mounting frame (1), the guide rod (9) is slidably connected with the pressing rod (10), the pressing rod (10) is arranged at one end of the guide rod (9) in a rotating mode, the second motor (12) is arranged above the pressing rod (10), the second belt pulley (13) is connected with an output shaft of the second motor (12), the second flat belt (14) is connected between the second belt pulley (13) and the second roller (11), the second roller (11) is located right above the first roller (5) and in contact fit with the first roller, the screw rod (15) is in threaded connection with the top of the guide rod (9), the screw rod (15) is rotatably connected with the lifting column (16) penetrating through the connecting the pressing rod (10), and the spring (17) is wound around the lifting column (16).

2. The wet film synchronous stretcher for lithium battery production according to claim 1, characterized in that: still including first support section of thick bamboo (20), second support section of thick bamboo (21), motor (22), first axis of rotation (23), gear (25) and second axis of rotation (26), one side of mounting bracket (1) width direction is provided with first support section of thick bamboo (20), first support section of thick bamboo (20) rear portion below is provided with second support section of thick bamboo (21), second support section of thick bamboo (21) are installed on mounting bracket (1), second support section of thick bamboo (21) rear portion is provided with first axis of rotation (23), first axis of rotation (23) are installed on mounting bracket (1), first axis of rotation (23) below is provided with second axis of rotation (26), second axis of rotation (26) are installed on mounting bracket (1), first axis of rotation (23) and second axis of rotation (26) contact, the one end and motor (22) output shaft that sets up on mounting bracket (1), the first axis of rotation (23) other end is provided with master gear (25), second axis of rotation (26) one end is provided with slave gear (25) with meshing with master gear (25).

3. The wet film synchronous stretcher for lithium battery production according to claim 2, characterized in that: the device further comprises a supporting rod (2) and a controller (3), wherein the supporting rod (2) is fixed on one side, far away from the first supporting cylinder (20), of the mounting frame (1), and the controller (3) is arranged above the supporting rod (2).

4. The wet film synchronous stretcher for lithium battery production according to claim 3, characterized in that: the novel heating device is characterized by further comprising a supporting frame (18) and a heating pipe (19), wherein the supporting frame (18) is arranged above the mounting frame (1), the heating pipe (19) is connected between the supporting frames (18), and the heating pipe (19) is located above the compression rod (10).

5. The wet film synchronous stretcher for lithium battery production according to claim 4, wherein the wet film synchronous stretcher comprises: the temperature sensor is characterized by further comprising a heater (270), a temperature sensor (271) and a display screen (272), wherein the heater (270) is arranged inside the first support cylinder (20), the temperature sensor (271) is arranged on one side of the first support cylinder (20), the display screen (272) is arranged on the mounting frame (1), and the display screen (272) and the first support are in the same straight line.

6. The wet film synchronous stretcher for lithium battery production according to claim 5, characterized in that: the heating pipe is characterized by further comprising a protective net (28), the protective net (28) is arranged on the outer surface of the heating pipe (19), and the protective net (28) is arranged on the supporting frame (18).

7. The wet film synchronous stretcher for lithium battery production according to claim 6, characterized in that: the anti-skid device also comprises an anti-skid sleeve (24), and the anti-skid sleeve (24) is sleeved outside the first rotating shaft (23).

8. The wet film synchronous stretcher for lithium battery production according to claim 7, characterized in that: the novel multifunctional portable intelligent alarm device is characterized by further comprising an alarm board (29) and a prompt lamp (30), wherein the alarm board (29) is arranged on one side of the support frame (18), and the prompt lamp (30) is arranged above the support frame (18).

9. The wet film synchronous stretcher for lithium battery production of claim 8, wherein the wet film synchronous stretcher is characterized in that: the novel rubber pad is characterized by further comprising a rubber pad (31), and the rubber pad (31) is sleeved at the bottom of the mounting frame (1).