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Glue injection method of valve covers

A valve cover and glue injection technology, which is used in devices and coatings for coating liquid on the surface, can solve the problems that plague filling manufacturers, cannot guarantee quality, and increase production costs, and achieve fully automatic glue injection and Monitoring and control, the sealing effect is safe and reliable, and the effect of ensuring product quality

Inactive Publication Date: 2012-02-22
莫元庆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the air-conditioning refrigerant valve cover is composed of two parts: an iron sealing cup and a sealing rubber pad, which have the following disadvantages: 1. The two parts are provided by two different manufacturers and assembled together manually. Since the rubber pad is semi-circular, It is very difficult to assemble the machine, so it has been assembled by hand, so that the quality cannot be guaranteed; 2. The production cost increases, and the sealing will not be in place when filling and sealing in the future. Filling producer; 3. Since it is assembled from two parts, there must be a certain gap. Therefore, when the machine is filled with high pressure, the rubber pad is often blown and the seal leaks. It is found that it is difficult to recover the refrigerant after the leak. Loss of ten to dozens of yuan, also caused air pollution

Method used

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Embodiment Construction

[0011] A glue injection method for a valve cover described in Embodiment 1 of the present invention comprises the following steps:

[0012] 1) Place each valve cap with the upward groove on a disc surface with a diameter of 32mm. The disc surface has strong magnetism and can automatically absorb the valve cap;

[0013] 2) Install the mouth-down glue spraying device at 3 mm above the groove of the valve cover. The power device controls the rotation of the disc, and the disc drives the valve cover to rotate for one circle. The glue spraying device evenly sprays a total amount of about 0.5ml thick glue;

[0014] 3) The valve cover after the glue is injected is conveyed and put into the dryer, and the groove on the valve cover is always upward;

[0015] 4) After being dried by a dryer at a drying temperature of 200°C for 2 minutes, the thick glue becomes an elastic and tough rubber pad, which is more closely attached to the groove, and the entire injection The glue process is co...

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PUM

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Abstract

The invention relates to a glue injection method of valve covers, which comprises the steps as follows: each upward valve cover arranged on a groove is placed on a disc face with a diameter of 32mm to 33mm, and the disc face with strong magnetism can automatically adsorb the valve covers. A glue spraying device with a downward opening is arranged at the position 3mm to 5mm above a groove of the valve covers, a disc drives the valve covers to rotate one circle, and the glue spraying device sprays out thick glue with the total amount of about 0.5ml. The valve covers with the glue injected are conveyed and placed in a drying machine to be dried at a temperature of 200 DEG C to 230DEG C, and after 2 minutes to 3 minutes, the whole glue injection process is finished. The glue injection method of valve covers has the advantages of adopting a high-temperature forming technology to enable an iron sealing cup to be adhered tightly with a sealing rubber cushion; being capable of achieving full-automatic glue injection and monitoring control and increasing output while ensuring product quality; and being safe and reliable in sealing effect.

Description

technical field [0001] The invention relates to a glue injection method for a valve cover. Background technique [0002] At present, the air-conditioning refrigerant valve cover is composed of two parts: an iron sealing cup and a sealing rubber pad, which have the following disadvantages: 1. The two parts are provided by two different manufacturers and assembled together manually. Since the rubber pad is semi-circular, It is very difficult to assemble the machine, so it has been assembled by hand, so that the quality cannot be guaranteed; 2. The production cost increases, and the sealing will not be in place when filling and sealing in the future. Filling producer; 3. Since it is assembled from two parts, there must be a certain gap. Therefore, when the machine is filled with high pressure, the rubber pad is often blown and the seal leaks. It is found that it is difficult to recover the refrigerant after the leak. The loss is ten to tens of yuan, and it also causes air poll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05C9/14B05C13/02
Inventor 莫元庆
Owner 莫元庆
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