CN-121988475-A - Stainless steel trades look valve

CN121988475ACN 121988475 ACN121988475 ACN 121988475ACN-121988475-A

Abstract

The invention discloses a stainless steel color-changing valve, which comprises a plurality of valve blocks connected with each other, wherein each valve block is provided with at least one mounting hole, the side wall of the valve block is provided with a lock hole communicated with the mounting hole, an oil pipe joint is arranged in each mounting hole, the side wall of the oil pipe joint is provided with a waist-shaped groove, the waist-shaped groove is opposite to the lock hole, is connected with the lock hole through a set screw and props against the waist-shaped groove of the oil pipe joint so as to lock the oil pipe joint. The oil pipe joint and the valve block are fixed by the set screw, so that the oil pipe joint is effectively fixed while the maintainability of the oil pipe joint is maintained, the rotation and the shaking of the oil pipe joint can be prevented, and the tightness between the oil pipe joint and the valve block is improved.

Inventors

WANG HAIJI
CHEN GUOJUN
LI JINGHUA
Hu Enguo
HU QI
BIAN HE
YUAN HUALEI
XIONG YONGSHENG
WANG JIAYANG
Xiong maoyuan

Assignees

上海发那科机器人有限公司

Dates

Publication Date: 20260508
Application Date: 20260209

Claims (10)

1. The stainless steel color-changing valve is characterized by comprising a plurality of valve blocks which are connected with each other, wherein each valve block is provided with at least one mounting opening, the side wall of the valve block is provided with a lock hole communicated with the mounting opening, an oil pipe joint is arranged in each mounting opening, the side wall of the oil pipe joint is provided with a waist-shaped groove, the waist-shaped groove is opposite to the lock hole, is connected with the lock hole through a set screw and props against the waist-shaped groove of the oil pipe joint so as to lock the oil pipe joint; The locking part is connected with the lock hole, and the pressing part stretches into the waist-shaped groove and is pressed against the waist-shaped groove; The length of the pressing part along the central axis direction of the set screw is smaller than the length of the lock hole along the central axis direction of the lock hole, and the length of the locking part along the central axis direction of the set screw is larger than the length of the lock hole along the central axis direction of the lock hole.
2. The stainless steel color changing valve according to claim 1, wherein the pressing portion is conical, the outer side surface is conical, and the end portion is an arc end surface; the waist-shaped groove is annular and comprises an upper inclined surface, an arc-shaped transition surface and a lower inclined surface which are sequentially connected, wherein the upper inclined surface and the lower inclined surface are symmetrically arranged along the arc-shaped transition surface; The conical surface is propped between the upper inclined surface and the lower inclined surface, and the arc-shaped end surface is propped against the arc-shaped transition surface.
3. The stainless steel color changing valve according to claim 2, wherein a first included angle is formed between the upper inclined surface and the lower inclined surface, and the angle of the first included angle is consistent with the angle of the cone of the pressing portion.
4. The stainless steel color-changing valve according to claim 1, wherein a sealing ring is arranged between the bottom of the oil pipe joint and the mounting port; the periphery of the sealing ring is arranged in a conical manner.
5. The stainless steel color changing valve according to claim 4, wherein at least two convex rings are provided on both upper and lower sides of the tapered portion of the seal ring.
6. The stainless steel color changing valve according to claim 1, wherein in two adjacent valve blocks, one of the valve blocks is provided with at least one protruding block on the side surface, and the other valve block is provided with at least one groove on the side surface, and the protruding block is matched with the groove in a positioning way; The side of this lug is equipped with the lug hole, the tip of valve piece is equipped with the jack, the jack extends to the side of recess, through the bolt inserts the jack, and support in the lug hole is in order to fix two adjacent valve pieces.
7. The stainless steel color change valve according to claim 6, wherein the projection extends into the recess in a direction perpendicular to a central axis of the plug.
8. The stainless steel color changing valve according to claim 7, wherein two protrusions are arranged on the side surface of one valve block, and the two protrusions are symmetrically distributed along the longitudinal direction of the valve block; the side surface of the other valve block is provided with two grooves which are symmetrically distributed along the longitudinal direction of the valve block and are respectively matched with the two convex blocks in a positioning way; the end part of the other valve block is provided with two jacks which are respectively communicated with the two grooves.
9. The stainless steel color changing valve according to claim 8, wherein the end of the plug pin is tapered, both sides of the inner wall of the protruding block hole are inclined, and when the plug pin is inserted into the insertion hole, the end of the plug pin abuts against the inclined inner wall of the protruding block hole.
10. The stainless steel color change valve according to claim 1, wherein the valve block is made of stainless steel.

Description

Stainless steel trades look valve Technical Field The invention relates to the technical field of color changing valves, in particular to a stainless steel color changing valve. Background The color changing valve is an important component of the spraying system and is mainly used for realizing paint color switching in spraying. In the color changing process, the color changing valve needs to execute the steps of cleaning and color changing successively, the paint residues used before are cleaned, and then new paints with different colors are supplied again, so that the quality of the cleaning and the total time of color changing have important influence on the quality and efficiency of the spraying operation. In conventional spray coating systems, the color changing valve typically includes two major modules, cleaning and color changing. The cleaning module cleans and dries the paint used in the flow channel for the previous time before the paint is replaced by using the cleaning solvent and the compressed air, the color changing module is used for controlling the supply switching of the paint with different colors, the required color paint is conveyed to the spraying equipment, and the cleaning medium and the on-off of the color paint are controlled by using the pneumatic control valve. ‌ ‌ A The oil pipe joint on the existing color change valve is fixed by adopting two bolts, so that the oil pipe joint and the color change valve block can be prevented from being separated, but the oil pipe joint cannot be completely fixed, and can rotate and shake, and the sealing failure is easy. The existing color-changing valve blocks are locked by splicing screws, the problem of layout interference is solved, the locking screws are arranged on the upper side, a certain eccentric force is arranged between the valve blocks due to locking force, gaps on the bottom surfaces are overlarge, pin holes at the bottoms of the valve blocks are cracked when serious, and the O-shaped rings between the valve blocks are sealed with failure risks. The existing color-changing valve is made of POM materials, the flow passage process hole is required to be sealed in a sealing glue blocking mode, and after long-term use, the sealing has the risk of failure. Disclosure of Invention In view of the above, an object of the present invention is to provide a stainless steel color changing valve, in which an oil pipe joint and a valve block are fixed by a set screw, and in which the oil pipe joint is effectively fixed while maintaining the ease of maintenance of the joint, and in which the oil pipe joint is prevented from rotating and shaking, and the sealing property between the oil pipe joint and the valve block is improved. In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: The stainless steel color-changing valve comprises a plurality of valve blocks which are connected with each other, wherein each valve block is provided with at least one mounting opening, the side wall of each valve block is provided with a lock hole communicated with the mounting opening, an oil pipe joint is arranged in each mounting opening, the side wall of the oil pipe joint is provided with a waist-shaped groove, the waist-shaped groove is opposite to the lock hole, is connected with the lock hole through a set screw and props against the waist-shaped groove of the oil pipe joint so as to lock the oil pipe joint; The locking part is connected with the lock hole, and the pressing part stretches into the waist-shaped groove and is pressed against the waist-shaped groove; The length of the pressing part along the central axis direction of the set screw is smaller than the length of the lock hole along the central axis direction of the lock hole, and the length of the locking part along the central axis direction of the set screw is larger than the length of the lock hole along the central axis direction of the lock hole. The stainless steel color-changing valve, wherein the pressing part is conical, the outer side surface of the pressing part is a conical surface, and the end part of the pressing part is an arc end surface; the waist-shaped groove is annular and comprises an upper inclined surface, an arc-shaped transition surface and a lower inclined surface which are sequentially connected, wherein the upper inclined surface and the lower inclined surface are symmetrically arranged along the arc-shaped transition surface; The conical surface is propped between the upper inclined surface and the lower inclined surface, and the arc-shaped end surface is propped against the arc-shaped transition surface. The stainless steel color-changing valve comprises an upper inclined surface and a lower inclined surface, wherein a first included angle is formed between the upper inclined surface and the lower inclined surface, and the angle of the first included angle is consistent with the angle of the conical angle of the pressin