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Novel piston dispensing machine injection valve

A dispensing machine and jet valve technology, applied in the mechanical field, can solve problems such as valve leakage, bubble generation, and poor glue flow effect, and achieve the possible effect of reducing the possibility of bubble generation

Inactive Publication Date: 2017-02-15
SANHE HUIYING ELECTRICAL EQUIP MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the prolongation of the use time of the prior art dispensing machine, the piston will wear out, and the air will enter the glue storage chamber through the gap between the piston and the glue cylinder. After the air is pressed, it will be pressed into the glue liquid. When the glue is mixed with air, air bubbles will be generated, which will not only make the glue flow poor and affect the dispensing effect, but also cause the risk of dripping after the valve is closed

Method used

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  • Novel piston dispensing machine injection valve
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  • Novel piston dispensing machine injection valve

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Experimental program
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Effect test

Embodiment 1

[0024] Such as Figure 1-3 The jet valve of a new type of piston dispenser shown includes a casing 1, an extrusion device 2, a sealing device 4, and a non-return device 5;

[0025] The housing 1 includes a housing 11, a liquid inlet 12, and a liquid outlet 13; the first end of the housing 11 is provided with a hole for installing the extruding device 2, and the liquid outlet 13 is arranged at the The second end of the housing 11; the liquid inlet 12 and the liquid return port 14 are arranged on the upper part of the housing 11;

[0026] The extrusion device 2 includes a piston 21 and a piston rod 22; the piston 21 is arranged inside the housing 11, the piston rod 22 is connected to the piston 21, and passes through the first A hole at one end; the piston rod 22 adopts a screw rod with external threads; the internal thread of the inner wall of the hole at the first end of the housing 11, the internal thread is matched with the external thread of the piston rod 22;

[0027] Th...

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Abstract

The invention relates to the technical field of machinery, in particular to a novel piston dispensing machine injection valve which comprises a shell (1), an extrusion device (2), a sealing device (4) and a backstop (5). Compared with the prior art, a screw rod is adopted to replace a common piston rod, and the sealing device is also arranged, so that the possibility of generating a bubble is reduced.

Description

technical field [0001] The invention relates to the technical field of machinery, in particular to a novel injection valve for a piston dispenser. Background technique [0002] Glue dispensing machine, also known as glue applicator, glue dropping machine or glue pouring machine, etc., specializes in controlling fluid. An automatic machine that drips and coats the fluid on the surface of the product or inside the product, which can realize three-dimensional and four-dimensional path dispensing, with the advantages of precise positioning, precise glue pulling and no wire drawing. Its working principle is: the glue is stored in the glue storage room formed by the rubber cylinder and the piston, the glue storage room is connected with the dispensing nozzle through the feeding pipe, and a valve is set at the connection between the dispensing nozzle and the feeding pipe, through the air pressure or the lead screw The transmission mechanism pushes the piston to move, and when a ce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05C5/02
CPCB05C5/0225B05C5/0237
Inventor 王界才
Owner SANHE HUIYING ELECTRICAL EQUIP MFG CO LTD