Feeding system for coating machine and control method

The technology of a feeding system and a control method is applied in the feeding system and control field of a coating machine in the production process of an ion display screen, which can solve the problems of wasted working hours, low process utilization rate of the coating machine, low productivity and the like, To achieve the effect of convenient use, simple structure, improve production efficiency and

Inactive Publication Date: 2012-10-17
SICHUAN COC DISPLAY DEVICES
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

Therefore, the waste of working hours is caused, the productivity is low, and the process utilization rate of the coating machine is not high.

Method used

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  • Feeding system for coating machine and control method
  • Feeding system for coating machine and control method

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Embodiment Construction

[0032] The present invention will be further described below in combination with specific embodiments and accompanying drawings.

[0033] Such as figure 1 As shown, a coating machine feeding system includes a raw material tank 1, a buffer tank 2, a first feed tank 3 and a syringe pump 5 connected in sequence through a pipeline 6, between the raw material tank 1 and the buffer tank 2, the buffer tank 2 and the first supply tank 3 and between the first supply tank 3 and the injection pump 5 are provided with a pneumatic valve 7, the supply system is also provided with a second supply tank 4, the second supply tank 4 The pipeline 6 is connected between the buffer tank 2 and the injection pump 5 , and is arranged in parallel with the first feed tank 3 , and a pneumatic valve 7 is set between the second feed tank 4 , the buffer tank 2 and the syringe pump 5 . The entire feeding system adopts PLC control to realize fully automatic operation, and is equipped with a display screen, w...

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Abstract

The invention discloses a feeding system for a coating machine and a control method. The feeding system comprises a stock tank, a buffer tank, a first feeding tank and an injection pump, which are sequentially connected through pipelines, wherein pneumatic valves are arranged between the stock tank and the buffer tank, between the buffer tank and the first feeding tank and between the first feeding tank and the injection pump; the feeding system is also provided a second feeding tank which is connected between the buffer tank and the injection pump through pipelines and is arranged in parallel connection with the first feeding tank, and pneumatic valves are provided between the second feeding tank and the buffer tank and between the second feeding tank and the injection pump. According to the invention, the technical problem that the injection pump needs to be shut down and wait when slurry is being supplemented to the feeding tanks in the prior art to be completely overcome, thereby improving production efficiency and the process utilization rate of the coating machine; when the buffer tank fills slurry to the feeding tanks and the feeding tanks fill the slurry into the injection pump, the manner of pressure feeding of the slurry by compressed gas is used, which enables the technical problem that conveying of slurry through pumping in traditional methods easily causes generation of bubbles in slurry and thus affects slurry quality to be overcome.

Description

technical field [0001] The invention relates to a material supply system and a control method, in particular to a material supply system and a control method of a coating machine in the production process of a plasma display screen. Background technique [0002] Plasma display has the advantages of vivid color, good color effect, wide viewing angle, long life, etc., and it has fast response speed, no smearing, no harmful radiation, and is more beneficial to eye health. It is one of the mainstream flat panel display technologies at present. At present, in the production process of the plasma display screen, a coating machine is used to uniformly coat the photosensitive paste on the surface of the substrate. The coating machine is mainly composed of a feeding system, a pipeline system, a syringe pump system and a filtration system, and its feeding system includes a raw material tank, a buffer tank, a feeding tank and a syringe pump. [0003] The current working process of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/00
Inventor 嘉洪魏兴龙李杰徐军王鹏年陈富贵赵海龙
Owner SICHUAN COC DISPLAY DEVICES
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