Battery sealing agent spray head

A technology of sealing agent and nozzle, applied in the direction of coating, spraying device, liquid spraying device, etc., can solve the problems of waste of resources, affecting the operating environment, high cost, etc., and achieve the effect of avoiding flowing around, improving the quality of spraying, and improving the utilization rate

Active Publication Date: 2016-06-15
ZHEJIANG YUNBANG BATTERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the battery sealing agent coating equipment in the industry includes a needle cylinder and a needle nozzle. Each movement of the needle nozzle corresponds to the surface of the battery steel shell. Through the movement of the piston in the syringe, the sealing agent is coated on the surface of the steel shell through the needle nozzle, After the cloth is finished, because some sealing agent remains in the needle nozzle, when the cylinder drives the needle nozzle to reset, the sealing agent will drip from the needle nozzle, resulting in waste of resources, increasing costs, and affecting the operating environment
In addition, when the sealing agent flows out through the needle nozzle and is coated on the steel case of the battery, a relatively concentrated point is initially formed. By virtue of the rotation of the steel case and the fluidity of the sealing agent, the surface of the steel case is coated with In the actual production process, the rotating speed of the steel shell rotating equipment, the fluidity of the sealant and the smoothness of the steel shell surface are all factors that directly affect the uniformity of the sealant coating on the steel shell surface. The synchronous control of these factors is relatively difficult, and it is impossible to achieve uniform and complete coating of the sealing agent on the surface of the battery steel case, and the overall structure of the equipment is complex and the cost is high

Method used

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  • Battery sealing agent spray head
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 and figure 2 As shown, the present invention provides a battery sealant spray head, including a spray cover 1 whose outer diameter is adapted to the inner diameter of the battery steel case to be coated and a push sealant mechanism 2 placed in the cavity of the spray cover 1, The pushing sealing agent mechanism 2 includes a agent cylinder 21, an agent tube 22 and a piston 23, and the inside of the agent cylinder 21 is provided with a through hole for containing the sealing agent adapted to the external dimensions of the piston 23 along its axial direction. 211, the piston 23 is airtightly arranged in the through hole 211 and is fixedly connected with the spray cover 1 through the connecting rod 3, and an air container communicating with the outside atmosphere is formed between the outer end 231 of the piston 23 and the inner wall 11 of the spray cover 1 Cavity 4, a capacity-adjustable storage chamber 5 is formed between its inner side end 232 and the ...

Embodiment 2

[0043] Such as Figure 7 As shown, the components that are the same as or corresponding to those in the first embodiment are marked with the corresponding reference numerals in the first embodiment. For the sake of simplicity, only the differences from the first embodiment will be described below. This embodiment two and figure 1 The difference of the first embodiment shown is that: the air chamber 4 is symmetrically provided with a spring 10, one end of the spring 10 is fixedly connected to the inner wall 11 of the spray cover 1, and the other end is connected to the rear end of the agent tank 21. The parts 213 are against each other, and a spring 10 is added in the air chamber 4. On the one hand, the stability of each push stroke of the piston 23 is improved to ensure that the spraying port 13 sprays the sealing agent evenly and continuously, and the self-elasticity of the spring 10 is used to complete the sealing. After the spraying agent is applied, it is beneficial for t...

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Abstract

The invention relates to a battery sealing agent spray head. The spray head comprises a spraying cover and a sealing agent pushing mechanism, wherein the sealing agent pushing mechanism comprises an agent cylinder, an agent-passing pipe and a piston; a through hole is formed in the agent cylinder; the piston is hermetically and glidingly arranged in the through hole and is fixedly connected with the spraying cover through a connecting rod; an air cavity is formed between the outer end of the piston and the inner wall of the spraying cover; a storage cavity is formed between the inner end of the piston and the inner wall of the agent cylinder; the agent-passing pipe is communicated with the storage cavity; a limiting plate is arranged at the front end part of the agent cylinder; an accommodating cavity is formed between the limiting plate and the front end part of the agent cylinder and is communicated with the storage cavity; and a plurality of spraying holes are uniformly formed in the side walls of the spraying cover in the circumferential direction. According to the spray head, the spraying cover moves relative to the agent cylinder to synchronously drive the piston to be pushed forwards, so that the volume in the storage cavity is reduced and the pressure in the accommodating cavity is increased; and by utilizing the change of the pressure difference, a sealing agent in the accommodating cavity is sprayed instantly and simultaneously through the spraying holes, so that the spraying is uniform, continuous and efficient.

Description

technical field [0001] The invention relates to the technical field of battery manufacturing equipment, in particular to a battery coating and sealing agent nozzle. Background technique [0002] At present, applying sealing agent to the battery is an important process in the battery manufacturing technology. Three or four stations are mainly used to evenly apply the sealing agent on the surface of the battery steel case to prevent battery liquid and gas leakage and ensure that the battery quality. At present, the battery sealing agent coating equipment in the industry includes a needle cylinder and a needle nozzle. Each movement of the needle nozzle corresponds to the surface of the battery steel shell. Through the movement of the piston in the needle cylinder, the sealing agent is coated on the surface of the steel shell through the needle nozzle, After the cloth is finished, because some sealing agent remains in the nozzle, when the cylinder drives the needle nozzle to re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B13/06B05B9/047B05B15/12
CPCB05B9/047B05B13/06B05B15/80
Inventor 丁辰
Owner ZHEJIANG YUNBANG BATTERY CO LTD
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