Sliding switching valve for volume metering-type glue dispensing

A technology of switching valve and sliding vane, applied in the direction of sliding valve, multi-port valve, valve device, etc., it can solve the problems of liquid leakage, stay, and seal failure, and achieve the effect of easy maintenance and cleaning, easy processing, and reliable sealing.

Inactive Publication Date: 2015-02-18
于飞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] If there are additives in the glue, such as solder paste or fluorescent powder, the gear valve will wear out too quickly. Other common valves will have additives that stay on the sealing surface, causing the seal to fail and leakage.

Method used

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  • Sliding switching valve for volume metering-type glue dispensing
  • Sliding switching valve for volume metering-type glue dispensing
  • Sliding switching valve for volume metering-type glue dispensing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] see figure 1 , figure 2 , image 3 , the valve seat 01 is processed with a glue inlet, a glue chamber and a groove for assembling the valve plate; the upper valve plate 02 is bonded to the bottom of the valve seat 01 groove, it is recommended to use Loctite structural adhesive E-120HP, the hole of the upper valve plate 02 is connected with The glue inlet of the valve seat 01 corresponds to the glue chamber port; the valve plate 03 has a groove surface and the valve plate 02 is pasted in the wrong direction; the lower valve plate 04 is attached to the switching valve plate 03 and the direction is also correct; the sealing sleeve 07 is placed in the counterbore of the fixed plate 05, protruding from the surface of the fixed plate 05, and is used for compression to generate a seal; the positioning pin 06 is installed in the positioning pin hole of the fixed plate 05, and the surface protrudes 1 to 2 mm, and is used for positioning The valve plate; the valve seat 01 is f...

Embodiment 2

[0021] like Figure 4 , equivalent to figure 1 Parallel application; using 2 sets of slide valves, can achieve double liquid dispensing.

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Abstract

The invention discloses a switching valve for volume metering-type glue dispensing. The switching valve is mainly characterized in that three overlapped ceramic valve pieces and an elastic body form a two-position three-way valve rubber valve; the elastic body is compressed to generate elastic force applied to the overlapped ceramic valve pieces, so that the contact surfaces between the ceramic valve pieces are planar sealing surfaces; the middle valve piece can stay at two positions under the action of linear power, wherein when the middle valve piece is at the position shown in the figure, the switching valve is in a glue discharging sate; when the middle valve piece is at the other position, the switching valve is in a glue supplementing sate. The switching valve is simple in structure, and convenient to maintain and clean, and has the advantages that a glue flowing path is through, so that the cleaning frequency is lower; the valve pieces are made of a ceramic material meeting the application requirement of filler-contained glue; when two groups of the switching valves are used together, double-glue dispensing is realized.

Description

technical field [0001] The invention relates to a switching valve for volumetric metering dispensing, in particular to a switching valve mainly composed of three valve pieces and an elastic body, and the middle valve piece linearly slides to switch between replenishing glue and glue discharging. One set of dispensing valves in one state can be applied to single-liquid glue, and two sets of valves can be applied to double-liquid glue. Background technique [0002] The volume metering type refers to a 3-way valve, which is used to switch the liquid and replenish the liquid. When a certain amount of liquid is replenished, the distance pushed out by the push rod multiplied by the cross-sectional area is the volume of liquid that goes out. If the cross-sectional area of ​​the piston is relatively small , the push rod is driven by a stepping motor to drive the ball screw to advance precisely, so that high-precision discharge can be achieved. A typical Japanese Musashi MPP-1 dispen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K11/065F16K3/314B05C5/02
CPCF16K11/0655B05C5/02F16K3/314
Inventor 于飞
Owner 于飞
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