Piston type metering valve

A metering valve and piston type technology, applied in the field of glue injection equipment, can solve the problems that the material quantity cannot be guaranteed accurately, easy to produce deviation, and the working accuracy is not significantly improved, so as to shorten the working stroke, simplify the structure of the substrate, and ensure the accuracy. Effect

Pending Publication Date: 2018-12-14
江苏一控真空注胶技术有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, there is no significant improvement in the accuracy of the work, the amount of materia

Method used

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Example Embodiment

[0033] The content of the present invention will be further described in detail below in conjunction with specific embodiments:

[0034] The problem to be solved by the present invention is to provide a piston type metering valve device which can strictly control the amount of glue and can stably inject glue.

[0035] Such as figure 1 , figure 2 , image 3 , Figure 4 , Picture 10 As shown, in order to solve the above problems, the present invention provides a piston type metering valve device, including:

[0036] Glue in and out control device 1;

[0037] The glue in and out control device 1 is provided with a base 18; the upper surface of the base 18 is provided with a drop-shaped groove 4; the drop-shaped groove 4 is provided with an inlet 5 and an outlet 6, and only In a kind of glue, used to avoid glue crossover; the glue in and out control device 1 is provided with an adapter plate 27; the adapter plate 27 is provided with an external glue supply pipe 19; the feed port 5 is di...

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Abstract

The invention relates to a piston type metering valve. The piston type metering valve comprises a glue inlet and outlet control device. The glue inlet and outlet control device comprises a base body.Water-drop-shaped grooves are formed in the upper surface of the base body, and each water-drop-shaped groove comprises a feeding inlet and a discharging outlet, is only used by one kind of glue, andis used for avoiding mixing of the glue. The glue inlet and outlet control device comprises an adapter plate. External glue supply pipelines are arranged on the adapter plate, and the feeding inlets directly communicate with the external glue supply pipelines and are used for enabling the external glue to directly flow into the water-drop-shaped grooves. Only one water-drop-shaped groove is formedin the upper end face of the base body, and only one water-drop-shaped groove is formed in the lower end face of the base body. A piston rod is arranged on the glue inlet and outlet control device, and a gluing control device is arranged on the top of the piston rod. The piston type metering valve can strictly control the glue quantity, can rapidly, accurately and repeatedly conduct glue injection, avoids mixing of the glue, and is high in practicability.

Description

technical field [0001] The invention relates to a glue injection device, in particular to a piston type metering valve device for precise glue injection. Background technique [0002] At present, among the glue injection methods in many glue injection equipment, according to the glue quantity control principle, it can be mainly divided into the pressure time function method and the screw control method to realize the glue quantity control. [0003] The pressure time function method is mainly affected by the air pressure, the glue discharge time, the equipment running speed, the size of the needle nozzle and so on. By controlling the time and air pressure and the relationship between them, the glue pressure is matched with the function of time to achieve the predetermined glue volume and the diameter of the glue point. Usually, the glue volume is proportional to the pressure and time. However, the pressure-time method is subject to many constraints, which affect the accuracy...

Claims

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Application Information

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IPC IPC(8): F16K1/00F16K27/02F16K31/126B05C5/02B05C11/10
CPCF16K1/00B05C5/0237B05C11/1028F16K27/02F16K31/1262
Inventor 施伟龚政
Owner 江苏一控真空注胶技术有限公司
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