A quantitative liquid adding device for button lithium battery

Abstract

The present invention discloses a quantitative liquid adding device for button lithium batteries, including a machine base plate, a lifting plate and a positioning plate, the side of the machine base plate is fixedly connected to a frame vertical plate, the top of the frame vertical plate is fixedly connected to a frame upper plate, and a liquid adding motor is fixedly installed on the upper top of the frame upper plate. The present invention drives the ball screw by a liquid adding motor set as a stepping forward and reverse motor, and drives the needle tail clamping plate to move under the reciprocating motion of the screw seat on the ball screw, thereby driving the active liquid adding of the liquid adding syringe, and in the case of the stepping type of the stepping motor being adjustable, the injection volume of the liquid adding syringe can be changed by setting the step value of the liquid adding motor to achieve the quantitative liquid adding amount of the lithium battery; by setting a layout type circulating turntable and a positioning plate, the layout type circulating turntable can layout and hold the lithium batteries to be added, and the positioning of the liquid adding syringe and the button battery is achieved under the push of the positioning cylinder.

Description

Technical Field

[0001] The invention relates to the technical field of battery liquid adding equipment, in particular to a quantitative liquid adding device for a button lithium battery. Background Art

[0002] When producing lithium batteries, the positive electrode, negative electrode and separator are usually made into a pole core, and then the pole core is installed in the battery shell and covered with a cover. Usually, there is an injection hole on the cover plate, through which the electrolyte is injected into the battery. The quality of the electrolyte and the amount of injection directly determine the quality of the lithium battery, so the quantitative addition process is crucial.

[0003] In the process of adding liquid, in order to ensure the stability and consistency of the quality of lithium battery products of the same batch specifications, it is very important to achieve quantitative control of the amount of electrolyte added; at the same time, small button lithium batteries are small in size, and there are certain difficulties in accurately positioning the addition of liquid, so we need to propose a quantitative liquid adding device for button lithium batteries. Summary of the invention

[0004] The object of the present invention is to provide a quantitative liquid adding device for button lithium batteries, in which a ball screw driven by a stepping forward and reverse motor is arranged to linearly reciprocate to inject electrolyte into a liquid adding syringe, thereby achieving quantitative liquid adding, and a positioning inner tube, a sleeve and a positioning plate are arranged to position the layout type circulating turntable on which the liquid is to be added, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a quantitative liquid adding device for button lithium batteries, comprising a machine base plate, a lifting plate and a positioning plate, the side of the machine base plate is fixedly connected to a frame vertical plate, the top of the frame vertical plate is fixedly connected to a frame upper plate, a liquid adding motor is fixedly installed on the upper top of the frame upper plate, a bearing is installed on the frame upper plate, a ball screw is plugged and installed on the bearing, the upper part of the ball screw and the motor shaft of the liquid adding motor are fixedly connected with a bevel gear, the ball screw and the liquid adding motor are fixedly connected to each other. The lifting plate is installed through a bevel gear transmission, and a screw seat is embedded in the middle of the lifting plate. The screw seat is threadedly installed on the ball screw. The bottom of the lifting plate is symmetrically fixedly connected with a positioning inner tube. A positioning sleeve is fixedly inserted in the upper plate of the frame. The positioning inner tube is slidably inserted in the positioning sleeve. The bottom of the positioning inner tube is fixedly connected with a needle tail splint, and a syringe splint is fixedly connected to the inner side of the frame vertical plate. A liquid-adding syringe is fixedly installed on the syringe splint, and the needle tail of the liquid-adding syringe is fixedly connected to the lower part of the needle tail splint.

[0006] A positioning cylinder is installed at the lower part of the machine base plate, a piston rod of the positioning cylinder is fixed to the lower part of the positioning plate, and a layout-type circulation turntable with a battery slot is fixedly installed at the upper part of the positioning plate.

[0007] Preferably, the base plate, the frame upper plate and the frame upper plate are configured as a stainless steel integrated structure frame.

[0008] Preferably, the outer ring of the bearing is fixedly connected to the upper plate of the frame, the inner ring of the bearing is fixedly sleeved on the lower part of the ball screw, and the lower part of the ball screw passes through the upper plate of the frame.

[0009] Preferably, the cavity of the needle tail splint is connected to the syringe of the liquid-adding syringe, and a liquid pump is provided on the upper part of the upper plate of the frame, and the liquid pump is connected and fixed to the cavity of the needle tail splint through a hose.

[0010] Preferably, a positioning protrusion is provided on the upper surface of the positioning plate, and a blind hole cooperating with the positioning protrusion is provided on the bottom of the layout-type circulating turntable.

[0011] Preferably, the upper part of the positioning plate is fixedly connected with limit strips around its periphery, and the liquid adding motor is configured as a stepping forward and reverse motor.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The present invention drives the ball screw by means of a liquid adding motor which is set as a stepping forward and reverse motor. The reciprocating motion of the screw seat on the ball screw drives the needle tail clamp to move, thereby driving the movable liquid adding of the liquid adding syringe. When the stepping motor is adjustable, the injection volume of the liquid adding syringe can be changed by setting the step value of the liquid adding motor, thereby realizing the quantitative liquid adding amount of the lithium battery. By setting a layout type circulating turntable and a positioning plate, the layout type circulating turntable can layout and hold the lithium batteries to be added, and the positioning of the liquid adding syringe and the button battery can be realized under the push of the positioning cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention;

[0015] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0016] Figure 3 It is a structural schematic diagram of the layout type circulating turntable of the present invention.

[0017] In the figure: 1. liquid adding motor; 2. lifting plate; 3. frame upper plate; 4. positioning sleeve; 5. ball screw; 6. frame vertical plate; 7. needle tail clamp; 8. syringe clamp; 9. liquid adding syringe; 10. positioning plate; 11. machine base plate; 12. positioning cylinder; 13. limit strip; 14. liquid pump; 15. layout type circulation turntable; 16. bevel gear; 17. screw seat; 18. bearing; 19. positioning inner tube; 20. cavity; 21. positioning protrusion; 22. battery slot. DETAILED DESCRIPTION

[0018] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-3 The present invention provides a technical solution: a quantitative liquid adding device for button lithium batteries, comprising a machine base plate 11, a lifting plate 2 and a positioning plate 10, the side of the machine base plate 11 is fixedly connected to a frame vertical plate 6, the top of the frame vertical plate 6 is fixedly connected to a frame upper plate 3, a liquid adding motor 1 is fixedly installed on the upper top of the frame upper plate 3, a bearing 18 is installed on the frame upper plate 3, a ball screw 5 is plugged and installed on the bearing 18, the upper part of the ball screw 5 and the motor shaft of the liquid adding motor 1 are fixedly connected with a bevel gear 16, and the ball screw 5 and the liquid adding motor 1 are connected by a screw shaft. The bevel gear 16 is installed for transmission, a screw seat 17 is embedded in the middle of the lifting plate 2, and the screw seat 17 is threadedly installed on the ball screw 5. The bottom of the lifting plate 2 is symmetrically fixedly connected with a positioning inner tube 19, and a positioning sleeve 4 is fixedly inserted on the upper plate 3 of the frame. The positioning inner tube 19 is slidably inserted in the positioning sleeve 4, and the bottom of the positioning inner tube 19 is fixedly connected with a needle tail splint 7, and a syringe splint 8 is fixedly connected to the inner side of the frame vertical plate 6. A liquid-adding syringe 9 is fixedly installed on the syringe splint 8, and the needle tail of the liquid-adding syringe 9 is fixedly connected to the lower part of the needle tail splint 7.

[0020] A positioning cylinder 12 is installed at the bottom of the base plate 11, and the piston rod of the positioning cylinder 12 is fixed to the bottom of the positioning plate 10. A layout-type circulation turntable 15 with a battery slot 22 is fixedly installed on the top of the positioning plate 10. The base plate 11, the frame upper plate 3 and the frame upper plate 3 are set as a stainless steel integrated structure frame. The outer ring of the bearing 18 is fixedly connected to the frame upper plate 3, and the inner ring of the bearing 18 is fixedly sleeved on the bottom of the ball screw 5 and the bottom of the ball screw 5 passes through the frame upper plate 3. The cavity 20 of the needle tail splint 7 is connected with the syringe of the liquid adding syringe 9. A liquid pump 14 is arranged on the upper part of the frame upper plate 3. The liquid pump 14 is connected and fixed to the cavity 20 of the needle tail splint 7 through a hose. A positioning protrusion 21 is arranged on the upper surface of the positioning plate 10. A blind hole matching the positioning protrusion 21 is arranged on the bottom of the layout type circulating turntable 15. The upper part of the positioning plate 10 is fixedly connected with the limiting strips 13. The liquid adding motor 1 is arranged as a stepping forward and reverse motor.

[0021] Working principle: This device drives the ball screw 5 through the liquid filling motor 1 which is set as a stepping forward and reverse motor. The reciprocating motion of the screw seat 17 on the ball screw 5 drives the needle tail clamp 7 to move, and then drives the liquid filling syringe 9 to move. In the case of the stepping adjustable stepping motor, the injection volume of the liquid filling syringe 9 can be changed by setting the step value of the liquid filling motor 1, so as to achieve the quantitative filling amount of the lithium battery; by setting the layout type circulation turntable 15 and the positioning plate 10, the layout type circulation turntable 15 can layout and hold the lithium batteries to be filled, and the positioning of the liquid filling syringe 9 and the button battery can be achieved under the push of the positioning cylinder 12.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quantitative liquid adding device for a button lithium battery, comprising a base plate (11), a lifting plate (2) and a positioning plate (10), Features: The side of the machine base plate (11) is fixedly connected to a frame vertical plate (6), the top of the frame vertical plate (6) is fixedly connected to a frame upper plate (3), the upper top of the frame upper plate (3) is fixedly installed with a liquid adding motor (1), a bearing (18) is installed on the frame upper plate (3), a ball screw (5) is plugged and installed on the bearing (18), the upper part of the ball screw (5) and the motor shaft of the liquid adding motor (1) are fixedly connected with a bevel gear (16), the ball screw (5) and the liquid adding motor (1) are installed through the bevel gear (16), and the middle part of the lifting plate (2) is embedded with a A screw seat (17), wherein the screw seat (17) is threadedly mounted on the ball screw (5); the bottom of the lifting plate (2) is symmetrically fixedly connected with a positioning inner tube (19); a positioning sleeve (4) is fixedly inserted on the upper plate (3) of the frame; the positioning inner tube (19) is slidably inserted in the positioning sleeve (4); the bottom of the positioning inner tube (19) is fixedly connected with a needle tail clamp (7); the inner side of the frame vertical plate (6) is fixedly connected with a syringe clamp (8); a liquid adding syringe (9) is fixedly mounted on the syringe clamp (8); and the needle tail of the liquid adding syringe (9) is fixedly connected to the lower part of the needle tail clamp (7); A positioning cylinder (12) is installed at the bottom of the machine base plate (11), a piston rod of the positioning cylinder (12) is fixed to the bottom of the positioning plate (10), and a layout-type circulation turntable (15) with a battery slot (22) is fixedly installed at the top of the positioning plate (10); The machine base plate (11), the frame upper plate (3) and the frame upper plate (3) are arranged as a stainless steel integrated structure frame, the outer ring of the bearing (18) is fixedly connected to the frame upper plate (3), the inner ring of the bearing (18) is fixedly sleeved on the lower part of the ball screw (5) and the lower part of the ball screw (5) passes through the frame upper plate (3), the cavity (20) of the needle tail clamp (7) is connected to the syringe of the liquid adding syringe (9), and a liquid pump (14) is arranged on the upper part of the frame upper plate (3), and the liquid pump (14) is connected and fixed to the cavity (20) of the needle tail clamp (7) through a hose.

2. A quantitative liquid adding device for a button lithium battery according to claim 1, Features: A positioning protrusion (21) is arranged on the upper surface of the positioning plate (10), and a blind hole cooperating with the positioning protrusion (21) is arranged on the bottom of the layout-type circulation turntable (15).

3. A quantitative liquid adding device for a button lithium battery according to claim 1, Features: The upper part of the positioning plate (10) is fixedly connected to limit bars (13) all around, and the liquid adding motor (1) is configured as a stepping forward and reverse motor.

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