A tablet pressing device for lithium battery production and processing

Abstract

The application provides a tablet pressing equipment for lithium battery production and processing, and relates to the field of lithium battery production. The tablet pressing equipment for lithium battery production and processing comprises a shell, a container is arranged on one side of the inside of the shell, an unwinding wheel is arranged on the inside of the shell and close to the container, a winding wheel is arranged on the inside of the shell and away from the container, a guide wheel, a first pair of pressing wheels and a second pair of pressing wheels are sequentially arranged on the inside of the shell and above the unwinding wheel and the winding wheel, a nozzle is arranged above the guide wheel, an electric heating net and a partition plate are arranged on the side wall of the shell and on both sides of the first pair of pressing wheels, a tensioning device is arranged on the side wall of the shell and between the first pair of pressing wheels and the second pair of pressing wheels, a diaphragm is arranged on the unwinding wheel, the diaphragm sequentially passes through the guide wheel, the first pair of pressing wheels and the second pair of pressing wheels and is fixed to the winding wheel. Through twice drying and twice rolling, the electrode material is uniformly distributed on the diaphragm.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of lithium battery production, and particularly to a tablet pressing device for lithium battery production and processing. BACKGROUND

[0002] Lithium batteries are a class of batteries in which lithium metal or lithium alloy is used as the positive / negative electrode material, and a non-aqueous electrolyte solution is used. Lithium batteries can be broadly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain metallic lithium, and are rechargeable. The fifth generation product of rechargeable batteries, lithium metal batteries, was born in 1996, and has better safety, specific capacity, self-discharge rate and performance-price ratio than lithium ion batteries.

[0003] In existing lithium battery production, electrode material sprayed on the diaphragm needs to be rolled and pressed to make the electrode material evenly distributed on the diaphragm. However, the existing device only performs drying once, and then performs rolling and pressing, which has the problem of poor rolling and pressing quality. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a tablet pressing device for lithium battery production and processing, which solves the problem of poor rolling and pressing quality of electrode material in existing lithium battery production.

[0005] To achieve the above object, the present application is implemented by the following technical scheme: a tablet pressing device for lithium battery production and processing, comprising a housing, a container is arranged on one side of the inside of the housing, a driving motor is fixedly connected to the upper end of the container, a motor shaft is arranged at the lower end of the driving motor, and a stirring rod is fixedly connected to the side wall of the motor shaft, a plunger pump is fixedly connected to the side wall of the housing above the container, a suction pipe is fixedly connected to the lower side wall of the plunger pump, the other end of the suction pipe extends into the inside of the container, a return pipe is fixedly connected to the lower end of the plunger pump, the other end of the return pipe is in communication with the container, an unwinding wheel is arranged in the inside of the housing close to the container, a winding wheel is arranged in the inside of the housing away from the container, a guide wheel, a first pair of pressing wheels and a second pair of pressing wheels are arranged in the inside of the housing in sequence above the unwinding wheel and the winding wheel, a tensioning device is arranged on the side wall of the housing between the unwinding wheel and the guide wheel, a nozzle is arranged above the guide wheel, a feeding pipe is fixedly connected to the upper side of the nozzle, the other end of the feeding pipe is fixedly connected to the middle of the side wall of the plunger pump, electric heating nets and partition plates are arranged on the side wall of the housing on both sides of the first pair of pressing wheels, a tensioning device is arranged on the side wall of the housing between the first pair of pressing wheels and the second pair of pressing wheels, adjusting devices are arranged at both ends of the first pair of pressing wheels and the second pair of pressing wheels, a diaphragm is arranged on the unwinding wheel, the other end of the diaphragm sequentially passes through the guide wheel, the first pair of pressing wheels and the second pair of pressing wheels and is fixed to the winding wheel.

[0006] Preferably, one side of the shell is provided with a feeding opening, the feeding opening is communicated with the container, and the lower end of the shell is fixedly connected with a supporting column.

[0007] Preferably, the front surface of the shell is provided with a sealing door, the upper portion of the sealing door is fixedly connected with a hinge, and the sealing door is rotationally connected with the shell through the hinge.

[0008] Preferably, the lower portion of the back surface of the shell is provided with a winding motor on one side, and the lower portion of the back surface of the shell is provided with an unwinding motor on the other side.

[0009] Preferably, the tensioning device comprises a fixed tube, one end of the fixed tube is fixedly connected with the inner wall of the shell, and the inside of the fixed tube is provided with a push rod.

[0010] Preferably, the inside of the fixed tube is provided with a first spring, one end of the first spring abuts against the push rod, the other end of the first spring abuts against the inner wall of the fixed tube, and the other end of the push rod is provided with a push roller.

[0011] Preferably, the adjusting device comprises a frame, the frame is fixed on the side wall of the shell, and the middle portion of the frame is provided with a pressing roller shaft.

[0012] Preferably, the inside of the frame and below the pressing roller shaft are provided with a second spring, the upper end of the frame is provided with an adjusting bolt in a penetrating mode, the adjusting bolt is threadedly connected with the frame, and the lower end of the adjusting bolt abuts against the pressing roller shaft.

[0013] The present application provides a tablet pressing equipment for lithium battery production and processing.

[0014] 1、The present application, the diaphragm with motor material is preheated and dried before the first pair of pressing rollers, and is dried again before the second pair of pressing rollers, so that two drying processes are arranged to prevent over-drying in one drying process, so that the electrode material is dry-cracked on the diaphragm, and the quality of the product is affected.

[0015] 2、The present application is provided with an adjusting device, the distance between the pressing rollers of the first pair of pressing rollers and the second pair of pressing rollers can be adjusted through the adjusting bolt, the thickness of the electrode material can be controlled, the quality of the product is ensured, and the tensioning device is arranged to ensure the consistency of the tension of the diaphragm, so that the electrode material is uniformly distributed on the diaphragm. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an internal schematic view of the present application;

[0017] Figure 2 It is a front view of the present application;

[0018] Figure 3 It is a back view of the present application;

[0019] Figure 4 schematic diagram of the tensioning device of the present application;

[0020] Figure 5 schematic diagram of the adjusting device of the present application.

[0021] 1, feeding port; 2, support column; 3, outer shell; 4, container; 5, stirring rod; 6, suction pipe; 7, unwinding wheel; 8, tensioning device; 9, winding wheel; 10, second pair of pinch rollers; 11, electric heating net; 12, partition; 13, first pair of pinch rollers; 14, diaphragm; 15, nozzle; 16, guide wheel; 17, feeding pipe; 18, return pipe; 19, plunger pump; 20, driving motor; 21, sealing door; 22, adjusting device; 23, hinge; 24, winding motor; 25, unwinding motor; 26, fixed pipe; 27, first spring; 28, push rod; 29, push roller; 30, second spring; 31, pinch roller shaft; 32, frame; 33, adjusting bolt. DETAILED DESCRIPTION

[0022] 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 a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application. EMBODIMENT

[0023] As Figures 1-5As shown, the lithium battery production and processing tabletting equipment provided by the embodiment of the application comprises a shell 3, a container 4 is arranged on one side of the inside of the shell 3, a driving motor 20 is fixedly connected to the upper end of the container 4, a motor shaft is arranged at the lower end of the driving motor 20, a stirring rod 5 is fixedly connected to the side wall of the motor shaft, a plunger pump 19 is fixedly connected to the side wall of the shell 3 and above the container 4, a suction pipe 6 is fixedly connected to the lower side wall of the plunger pump 19, the other end of the suction pipe 6 extends to the inside of the container 4, a return pipe 18 is fixedly connected to the lower end of the plunger pump 19, the other end of the return pipe 18 is communicated with the container 4, an unwinding wheel 7 is arranged in the inside of the shell 3 and close to the container 4, a winding wheel 9 is arranged in the inside of the shell 3 and away from the container 4, a guide wheel 16, a first pair of pressing wheels 13 and a second pair of pressing wheels 10 are arranged in the inside of the shell 3 and above the unwinding wheel 7 and the winding wheel 9 in sequence, a tensioning device 8 is arranged on the side wall of the shell 3 and between the unwinding wheel 7 and the guide wheel 16, a nozzle 15 is arranged above the guide wheel 16, a feeding pipe 17 is fixedly connected to the upper side of the nozzle 15, the other end of the feeding pipe 17 is fixedly connected to the middle of the side wall of the plunger pump 19, electric heating nets 11 and partition plates 12 are arranged on the side wall of the shell 3 and on both sides of the first pair of pressing wheels 13, the tensioning device 8 is arranged on the side wall of the shell 3 and between the first pair of pressing wheels 13 and the second pair of pressing wheels 10, adjusting devices 22 are arranged at both ends of the first pair of pressing wheels 13 and the second pair of pressing wheels 10, a diaphragm 14 is arranged on the unwinding wheel 7, the other end of the diaphragm 14 sequentially passes through the guide wheel 16, the first pair of pressing wheels 13 and the second pair of pressing wheels 10 and is fixed to the winding wheel 9.

[0024] A feeding port 1 is arranged on one side of the shell 3, the feeding port 1 is communicated with the container 4, the electrode material can be supplemented to the container 4 through the feeding port 1, a supporting column 2 is fixedly connected to the lower end of the shell 3, a sealing door 21 is arranged on the front of the shell 3, a hinge 23 is fixedly connected to the upper part of the sealing door 21, the sealing door 21 is rotationally connected to the shell 3 through the hinge 23, a winding motor 24 is arranged on one side of the lower part of the back of the shell 3, a unwinding motor 25 is arranged on the other side of the lower part of the back of the shell 3, the tensioning device 8 comprises a fixed pipe 26, one end of the fixed pipe 26 is fixedly connected to the inner wall of the shell 3, a push rod 28 is arranged in the inside of the fixed pipe 26, a first spring 27 is arranged in the inside of the fixed pipe 26, one end of the first spring 27 abuts against the push rod 28, the other end of the first spring 27 abuts against the inner wall of the fixed pipe 26, a push roller 29 is arranged at the other end of the push rod 28, the adjusting device 22 comprises a frame 32, the frame 32 is fixed on the side wall of the shell 3, a pressing wheel shaft 31 is arranged in the middle of the frame 32, a second spring 30 is arranged in the inside of the frame 32 and below the pressing wheel shaft 31, an adjusting bolt 33 is arranged through the upper end of the frame 32, the adjusting bolt 33 is threadedly connected with the frame 32 and the lower end of the adjusting bolt 33 abuts against the pressing wheel shaft 31.

[0025] 30, the frame 32 is fixed on the side wall of the shell 3, a pressing wheel shaft 31 is arranged in the middle of the frame 32, a second spring 30 is arranged in the inside of the frame 32 and below the pressing wheel shaft 31, an adjusting bolt 33 is arranged through the upper end of the frame 32, the adjusting bolt 33 is threadedly connected with the frame 32 and the lower end of the adjusting bolt 33 abuts against the pressing wheel shaft 31.

[0026] Working principle: when the application is used, the unwinding wheel 7 releases the diaphragm 14, the plunger pump 19 is started, the suction pipe 6 sucks the electrode material from the container 4, and sprays it from the nozzle 15 through the feeding pipe 17, the electrode material falls on the diaphragm 14, and the excessive electrode material enters the container 4 again through the backflow pipe 18, at the same time, the driving motor 20 is started, the stirring rod 5 rotates to prevent the electrode material from precipitating, the diaphragm 14 with the electrode material is preheated and dried before the first pair of pressure rollers 14, and is heated and dried again before the second pair of pressure rollers 15, at the same time, the interval between the pressure rollers of the first pair of pressure rollers 14 and the second pair of pressure rollers 15 can be adjusted respectively through the adjusting bolt 33, so that the thickness of the electrode material can be controlled, and the setting of the tensioning device 8 ensures that the tension of the diaphragm 14 is consistent, so that the electrode material is evenly distributed on the diaphragm, and the quality of the spraying is guaranteed.

[0027] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely divergences, modifications, replacements and variations of the embodiments of the application, and the scope of the application is defined by the appended claims and their equivalents.

Claims

1. A tablet pressing device for lithium battery production and processing, comprising a housing (3), characterized in that: The inside of the shell (3) is provided with a container (4), the upper end of the container (4) is fixedly connected with a driving motor (20), the lower end of the driving motor (20) is provided with a motor shaft, and the side wall of the motor shaft is fixedly connected with a stirring rod (5), the side wall of the shell (3) and above the container (4) is fixedly connected with a plunger pump (19), the lower side wall of the plunger pump (19) is fixedly connected with a suction pipe (6), the other end of the suction pipe (6) extends to the inside of the container (4), the lower end of the plunger pump (19) is fixedly connected with a return pipe (18), the other end of the return pipe (18) communicates with the container (4), the inside of the shell (3) and close to the container (4) is provided with a unwinding wheel (7), the inside of the shell (3) and away from the container (4) is provided with a winding wheel (9), the inside of the shell (3) and above the unwinding wheel (7) and the winding wheel (9) are sequentially provided with a guide wheel (16), a first pair of pressing wheels (13) and a second pair of pressing wheels (10), the side wall of the shell (3) and between the unwinding wheel (7) and the guide wheel (16) is provided with a tensioning device (8), the upper side of the guide wheel (16) is provided with a nozzle (15), the upper side of the nozzle (15) is fixedly connected with a feeding pipe (17), the other end of the feeding pipe (17) is fixedly connected with the side wall of the plunger pump (19), the side wall of the shell (3) and on both sides of the first pair of pressing wheels (13) is provided with an electric heating net (11) and a partition plate (12), the side wall of the shell (3) and between the first pair of pressing wheels (13) and the second pair of pressing wheels (10) is provided with a tensioning device (8), both ends of the first pair of pressing wheels (13) and the second pair of pressing wheels (10) are provided with an adjusting device (22), the unwinding wheel (7) is provided with a diaphragm (14), the other end of the diaphragm (14) sequentially passes through the guide wheel (16), the first pair of pressing wheels (13) and the second pair of pressing wheels (10) and is fixed on the winding wheel (9).

2. The tablet pressing equipment for lithium battery production and processing according to claim 1, characterized in that: The side of the shell (3) is provided with a feeding port (1), the feeding port (1) communicates with the container (4), and the lower end of the shell (3) is fixedly connected with a supporting column (2).

3. The tablet pressing equipment for lithium battery production and processing according to claim 1, characterized in that: The front of the shell (3) is provided with a sealing door (21), the upper part of the sealing door (21) is fixedly connected with a hinge (23), and the sealing door (21) is rotatably connected with the shell (3) through the hinge (23).

4. The tablet pressing equipment for lithium battery production and processing according to claim 1, characterized in that: The lower side of the back of the shell (3) is provided with a winding motor (24), and the other side of the lower back of the shell (3) is provided with an unwinding motor (25).

5. The tablet pressing equipment for lithium battery production and processing according to claim 1, characterized in that: The tensioning device (8) comprises a fixed pipe (26), one end of the fixed pipe (26) is fixedly connected with the inner wall of the shell (3), and the inside of the fixed pipe (26) is provided with a push rod (28).

6. The tablet pressing equipment for lithium battery production and processing according to claim 5, characterized in that: The inside of the fixed pipe (26) is provided with a first spring (27), one end of the first spring (27) abuts against the push rod (28), the other end of the first spring (27) abuts against the inner wall of the fixed pipe (26), and the other end of the push rod (28) is provided with a push roller (29).

7. The tablet pressing equipment for lithium battery production and processing according to claim 1, characterized in that: The adjusting device (22) comprises a frame (32) fixed on the side wall of the shell (3), and a middle part of the frame (32) is provided with a pressing wheel shaft (31).

8. The tablet pressing equipment for lithium battery production and processing according to claim 7, characterized in that: A second spring (30) is arranged inside the frame (32) and below the pressing wheel shaft (31), and an upper end of the frame (32) is provided with an adjusting bolt (33) penetratingly arranged, the adjusting bolt (33) is threadedly connected with the frame (32), and a lower end of the adjusting bolt (33) abuts against the pressing wheel shaft (31).

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