Liquid injection head structure of lithium / sodium battery automatic liquid injection machine

Abstract

The utility model provides a liquid injection head structure of an automatic liquid injection machine of a lithium / sodium battery, which comprises a bottom plate, a liquid injection pipe is mounted on the bottom plate, side plates are mounted at four corners of two sides of the bottom plate respectively, L-shaped sliding grooves are formed in the inner sides of the side plates, and sliding blocks are mounted in the L-shaped sliding grooves in a sliding manner; the sliding blocks in the two side plates on one side of the bottom plate are connected with first protective sleeves through fixing rods correspondingly, and the sliding blocks in the two side plates on the other side of the bottom plate are connected with second protective sleeves through fixing rods correspondingly. When the driving part controls the four sliding blocks to be located at the horizontal inner end of the L-shaped sliding groove, the first protection sleeve and the second protection sleeve are closed to protect a liquid injection opening in the lower end of the liquid injection pipe, and when the driving part controls the four sliding blocks to be located at the vertical upper end of the L-shaped sliding groove, the first protection sleeve and the second protection sleeve are closed to protect the liquid injection opening in the lower end of the liquid injection pipe. The first protective sleeve and the second protective sleeve are opened and move upwards to automatically relieve protection of a liquid injection opening in the lower end of the liquid injection pipe. According to the utility model, closure protection and protection release of the lower end of the liquid injection pipe are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to a liquid injection head structure of an automatic liquid injection machine for lithium / sodium batteries. Background Art

[0002] Lithium / sodium battery automatic filling machine is a kind of equipment used in the battery manufacturing process, mainly used to inject electrolyte into the positive and negative electrodes. It can greatly improve the efficiency and consistency of battery manufacturing and reduce errors in manual operation. Lithium / sodium battery automatic filling machine usually includes filling head and automatic control system and other structural components.

[0003] The current injection heads are exposed structures when in operation. After a single injection is completed, negative pressure or liquid tension is relied on to prevent the electrolyte inside from dripping. However, when the injection head works at a faster speed, the electrolyte attached to it may still drip. In addition, it does not have the function of protecting and receiving the injection tube, resulting in the risk of the injection tube colliding with other objects. The collision may cause damage to the injection tube. Furthermore, if the bottom of the injection tube is not supported, the electrolyte may drip from the end of the injection tube onto the workbench, polluting the working environment. Utility Model Content

[0004] In order to solve the above problems, the utility model aims to propose a liquid filling head structure of an automatic liquid filling machine for lithium / sodium batteries. By arranging a first protective cover and a second protective cover to cooperate with a slider, a fixing rod, and side plates and an L-shaped slide groove at the four corners of the bottom plate, the closing and opening upward movement of the first protective cover and the second protective cover can be controlled, so that the closing protection and the release protection of the lower end of the liquid filling tube can be realized without affecting the operation of the liquid filling tube.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A liquid injection head structure of an automatic liquid injection machine for lithium / sodium batteries comprises a bottom plate, a liquid injection tube is installed on the bottom plate, side plates are installed at four corners on both sides of the bottom plate respectively, an L-shaped slide groove is arranged on the inner side of the side plate, a slider is slidably installed in the L-shaped slide groove, the sliders in the two side plates on one side of the bottom plate are respectively connected to a first protective cover through a fixing rod, and the sliders in the two side plates on the other side are respectively connected to a second protective cover through a fixing rod; when the four sliders are controlled by a driving component to be located at the horizontal inner end of the L-shaped slide groove, the first protective cover and the second protective cover are closed to protect the liquid injection port at the lower end of the liquid injection tube, and when the four sliders are controlled by a driving component to be located at the vertical upper end of the L-shaped slide groove, the first protective cover and the second protective cover are opened and moved upward to automatically release the protection of the liquid injection port at the lower end of the liquid injection tube.

[0007] Furthermore, the first protective cover and the second protective cover are both hollow semi-cylinders corresponding to the lower end of the injection tube.

[0008] Furthermore, a sponge pad for absorbing liquid is adhered to the bottom end of the hollow semi-cylinder.

[0009] Furthermore, a circular through groove is provided at the center of the top of the bottom plate, and the injection pipe is fixedly installed through the circular through groove.

[0010] Furthermore, the driving mechanism includes sleeves fixed respectively at the lower parts of the front and rear ends of the base plate, sleeve rods are vertically slidably installed inside the lower ends of the two sleeves, connecting blocks are fixedly installed on the two sleeve rods, movable rods are rotatably installed on one side of the two connecting blocks, and the other ends of the two movable rods are respectively hinged to one side of the outside of the first protective cover and the second protective cover, and springs are connected between the upper parts of the two connecting blocks and the lower part of the base plate.

[0011] Furthermore, a connecting pipe is installed on the top of the injection pipe, and the injection pipe and the connecting pipe are connected, and the other end of the connecting pipe is connected to the injection machine.

[0012] Beneficial effect: The utility model controls the closing and opening of the first protective cover and the second protective cover by setting the first protective cover in conjunction with the slider, the fixing rod, the side plates at the four corners of the bottom plate, and the L-shaped slide groove, so as to realize the closing protection and releasing protection of the lower end of the injection tube without affecting the operation of the injection tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the liquid injection head structure of the automatic liquid injection machine for lithium / sodium batteries according to an embodiment of the utility model;

[0015] Figure 2 It is a bottom view structural schematic diagram of the liquid injection head structure of the automatic liquid injection machine for lithium / sodium batteries according to an embodiment of the utility model;

[0016] Figure 3 for Figure 2 A magnified schematic diagram of the middle part;

[0017] Figure 4 This is a schematic diagram of the bottom plate and side plate structure of the liquid filling head structure of the automatic liquid filling machine for lithium / sodium batteries described in an embodiment of the utility model. DETAILED DESCRIPTION

[0018] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0019] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0020] Example 1

[0021] See also Figure 1-4 : A liquid injection head structure of an automatic liquid injection machine for lithium / sodium batteries, comprising a bottom plate 3, a liquid injection tube 1 is installed on the bottom plate 3, side plates 4 are respectively installed at four corners on both sides of the bottom plate 3, an L-shaped slide groove 12 is arranged on the inner side of the side plate 4, a slider 13 is slidably installed in the L-shaped slide groove 12, the sliders 13 in the two side plates 4 on one side of the bottom plate 3 are respectively connected to a first protective cover through a fixing rod 14, and the sliders 13 in the two side plates 4 on the other side are respectively connected to a second protective cover through a fixing rod 14; when the four sliders 13 are controlled by a driving component to be located at the horizontal inner end of the L-shaped slide groove 12, the first protective cover and the second protective cover are closed to protect the liquid injection port at the lower end of the liquid injection tube 1, and when the four sliders 13 are controlled by a driving component to be located at the vertical upper end of the L-shaped slide groove 12, the first protective cover and the second protective cover are opened and moved upward to automatically release the protection of the liquid injection port at the lower end of the liquid injection tube 1.

[0022] In this embodiment, the first protective cover and the second protective cover cooperate with the slider, the fixing rod, the side plates at the four corners of the bottom plate, and the L-shaped slide groove to control the closing and opening and upward movement of the first protective cover and the second protective cover. Under the premise of not affecting the operation of the liquid injection tube, the closing protection and releasing protection of the lower end of the liquid injection tube can be realized, and the liquid injection tube that is not injecting liquid can be protected and possible dripping electrolyte can be received, thereby ensuring the cleanliness of the liquid injection tube and the work surface and avoiding the dripping of electrolyte and the deformation and bending of the liquid injection tube due to impact.

[0023] In a specific example, the first protective cover and the second protective cover are both hollow semi-cylinders 5 corresponding to the lower end of the injection tube 1.

[0024] It should be noted that the hollow semi-cylinders of the present embodiment are all made of corrosion-resistant elastic rubber material and can be used to effectively protect the injection tube.

[0025] In a specific example, a sponge pad for absorbing liquid is adhered to the bottom end of the hollow semi-cylinder 5 .

[0026] The sponge pad of this embodiment can absorb the electrolyte dripping from the end of the injection tube when no liquid is injected. By regularly cleaning and replacing the sponge pad, the cleanliness of the working environment can be ensured and environmental pollution can be prevented.

[0027] In a specific example, a circular through groove 8 is provided at the center of the top of the bottom plate 3 , and the injection tube 1 is fixedly installed through the circular through groove 8 .

[0028] It should be noted that the surface of the liquid injection tube of this embodiment is fixedly installed inside the circular through groove, and the lower end of the liquid injection tube extends and protrudes out of the circular through groove.

[0029] In a specific example, the driving mechanism includes sleeves 9 respectively fixed to the lower parts of the front and rear ends of the base plate 3, and sleeve rods 10 are vertically slidably installed inside the lower ends of the two sleeves 9. Connecting blocks 6 are fixedly installed on the two sleeve rods 10, and movable rods 7 are rotatably installed on one side of the two connecting blocks 6. The other ends of the two movable rods 7 are respectively hinged to one side of the outside of the first protective cover and the second protective cover, and springs 11 are connected between the upper parts of the two connecting blocks 6 and the lower part of the base plate 3.

[0030] When the sleeve rod contacts the work surface, the connecting block and the top rod will stop moving, and the bottom plate will drive the side plate and the slider, the first protective cover, the second protective cover and the fixed rod to continue to move downward. Due to the limiting effect of the movable rod, the first protective cover and the second protective cover will first slide in the horizontal direction, so that the first protective cover and the second protective cover will no longer block the injection tube. When the slider slides to the connecting end of the horizontal and vertical sides of the L-shaped slide groove, the side plate continues to move downward, causing the slider to slide in the vertical side of the L-shaped slide groove. The first protective cover and the second protective cover will no longer move, while the injection tube continues to move downward, so that the injection tube can be inserted into the lithium / sodium battery for injection. When the injection is completed and moves upward, the elastic force generated by the spring will reset the components.

[0031] In a specific example, a connecting tube 2 is installed on the top of the injection tube 1, and the injection tube 1 and the connecting tube 2 are connected, and the other end of the connecting tube 2 is connected to the injection machine.

[0032] In summary: the working principle of this embodiment is:

[0033] First, install the injection pipe and the connecting pipe on the injection machine. When the injection machine is working and drives the injection pipe to move downward, the sleeve rod will also move downward. When the sleeve rod contacts the work surface, the connecting block and the sleeve rod will stop moving (equivalent to a fixed state), and the bottom plate will drive the side plate, the slider, the hollow semi-cylinder and the fixed rod to continue to move downward. Due to the limiting effect of the movable rod, the hollow semi-cylinder will first slide in the horizontal direction so that the hollow semi-cylinder will no longer block the injection pipe. When the slider slides to the connecting end of the horizontal and vertical sides of the L-shaped slide, the side plate continues to move downward, causing the slider to slide in the vertical side of the L-shaped slide (the hollow semi-cylinder no longer moves and the injection pipe continues to move downward), so that the injection pipe can be inserted into the lithium / sodium battery for injection. When it moves upward after the injection is completed, the elastic force generated by the spring will reset the components.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A liquid injection head structure of a lithium / sodium battery automatic liquid injection machine, characterized in that: The invention comprises a bottom plate (3), a liquid injection pipe (1) is installed on the bottom plate (3), side plates (4) are installed at four corners on both sides of the bottom plate (3), an L-shaped slide groove (12) is provided on the inner side of the side plate (4), a slider (13) is slidably installed in the L-shaped slide groove (12), the sliders (13) in the two side plates (4) on one side of the bottom plate (3) are respectively connected to the first protective cover through a fixing rod (14), and the sliders (13) in the two side plates (4) on the other side are respectively connected to the first protective cover through a fixing rod (14). The fixing rod (14) is connected to a second protective cover; when the four sliders (13) are controlled by a driving component to be located at the horizontal inner end of the L-shaped slide groove (12), the first protective cover and the second protective cover are closed to protect the injection port at the lower end of the injection tube (1); when the four sliders (13) are controlled by a driving component to be located at the vertical upper end of the L-shaped slide groove (12), the first protective cover and the second protective cover are opened and moved upward to automatically release the protection of the injection port at the lower end of the injection tube (1).

2. The liquid injection head structure of the automatic liquid injection machine for lithium / sodium batteries according to claim 1, characterized in that: The first protective cover and the second protective cover are both hollow semi-cylinders (5) corresponding to and matching the lower end of the injection tube (1).

3. The liquid injection head structure of the automatic liquid injection machine for lithium / sodium batteries according to claim 2, characterized in that: A sponge pad for absorbing liquid is adhered to the bottom end of the hollow semi-cylinder (5).

4. The liquid injection head structure of the automatic liquid injection machine for lithium / sodium batteries according to claim 1, characterized in that: A through circular groove (8) is provided at the center of the top of the bottom plate (3), and the liquid injection pipe (1) is fixedly installed through the circular groove (8).

5. The liquid injection head structure of the automatic liquid injection machine for lithium / sodium batteries according to claim 1, characterized in that: The driving component comprises sleeves (9) respectively fixed to the lower parts of the front and rear ends of the base plate (3); sleeve rods (10) are vertically slidably mounted inside the lower ends of the two sleeves (9); connecting blocks (6) are fixedly mounted on the two sleeve rods (10); movable rods (7) are rotatably mounted on one side of the two connecting blocks (6); the other ends of the two movable rods (7) are respectively hinged to one side of the outside of the first protective cover and the second protective cover; and springs (11) are connected between the upper parts of the two connecting blocks (6) and the lower part of the base plate (3).

6. The liquid injection head structure of the automatic liquid injection machine for lithium / sodium batteries according to claim 1, characterized in that: A connecting pipe (2) is installed on the top of the liquid injection pipe (1), and the liquid injection pipe (1) and the connecting pipe (2) are connected, and the other end of the connecting pipe (2) is connected to the liquid injection machine.

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