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CN-224214757-U - High-precision reversing valve and intelligent color mixer

CN224214757UCN 224214757 UCN224214757 UCN 224214757UCN-224214757-U

Abstract

The application provides a high-precision reversing valve which comprises a valve body assembly and a valve core assembly, wherein the valve body assembly comprises a valve core pipeline piece, a feeding pipeline piece, a first pressure pump pipeline piece and a second pressure pump pipeline piece, a large-flow channel, a small-flow channel and a feeding channel are arranged in the valve core assembly, the small-flow channel is respectively communicated with the second pressure pump pipeline piece and a discharge hole in a small discharge state, and the feeding channel is respectively communicated with the first pressure pump pipeline piece and the feeding pipeline piece. The actual discharge quantity of the small-flow discharge valve is completely derived from the paint in the second pressure pump pipeline piece when the small-flow discharge valve is used for discharging, so that the discharge quantity is convenient to accurately control, and simultaneously, the paint in the other pressure pump pipeline piece and the valve core pipeline piece can be synchronously returned to the feeding pipeline piece no matter the large-flow discharge valve is used for discharging the small-flow discharge valve, so that the paint can fully flow, the paint is prevented from being solidified, and the discharge precision is improved.

Inventors

  • GUO YICHUAN
  • GUO YIFU
  • LI GANQING

Assignees

  • 江西索瑞达智能装备科技有限公司

Dates

Publication Date
20260508
Application Date
20250808

Claims (10)

  1. 1. A high-precision reversing valve is characterized by comprising a valve body assembly (1) and a valve core assembly (2), wherein the valve body assembly (1) comprises a valve core pipeline piece (11), a feeding pipeline piece (12), a first pressure pump pipeline piece (13) and a second pressure pump pipeline piece (14) which are respectively communicated with the valve core pipeline piece (11), the valve core assembly (2) is rotationally arranged in the valve core pipeline piece (11), a discharge port (111) of the valve core pipeline piece (11), a pipeline port of the first pressure pump pipeline piece (13) and a pipeline port of the second pressure pump pipeline piece (14) are respectively abutted with a rotating surface (211) of the valve core assembly (2), a large flow channel (23), a small flow channel (24) and a feeding channel (25) are arranged in the valve core assembly (2), the valve core assembly (2) after rotation has a large discharge state and a small discharge state, the large flow channel (23) is respectively communicated with the first pressure pump pipeline piece (13) and the discharge port (111), the pipeline port of the second pressure pump pipeline piece (14) is respectively staggered with the small flow channel (24) and the small flow channel (111) is respectively communicated with the small flow channel (24), the feed channel (25) communicates with the first pump conduit member (13) and the feed conduit member (12), respectively.
  2. 2. The high-precision reversing valve according to claim 1, wherein the valve core assembly (2) comprises a first valve body (21) and a second valve body (22) which are rotatably arranged in the valve core pipeline piece (11), a rotating surface (211) of the first valve body (21) is abutted with a pipeline port of the first pressure pump pipeline piece (13), a rotating surface (211) of the second valve body (22) is abutted with a pipeline port of the second pressure pump pipeline piece (14) and a discharging port (111) respectively, the small flow channel (24) and the feeding channel (25) are arranged on the second valve body (22), the large flow channel (23) is arranged on the first valve body (21) and the second valve body (22), and two ports of the large flow channel (23) are arranged on the rotating surface (211) of the first valve body (21) and the rotating surface (211) of the second valve body (22) respectively.
  3. 3. The high-precision reversing valve according to claim 1, wherein the valve core assembly (2) is further provided with a pressure relief channel (26), and in a large discharge state, the pressure relief channel (26) is respectively communicated with the second pressure pump pipeline piece (14) and the valve core pipeline piece (11).
  4. 4. The high-precision reversing valve according to claim 1, wherein the feed channel (25) has a first feed port (251), a second feed port (252) and a third feed port (253), and the spool assembly (2) after rotation further has a feed state in which the first feed port (251) communicates with the spool piping (11) or with the feed piping (12), the second feed port (252) communicates with the first pump piping (13), the third feed port (253) communicates with the second pump piping (14), and the large-flow channel (23) and the small-flow channel (24) are both staggered from the discharge port (111).
  5. 5. The high-precision reversing valve according to claim 4, wherein the feed channel (25) further has a fourth feed port (254), the fourth feed port (254) being in communication with the first pump conduit member (13) in a small discharge state, the first feed port (251) being in communication with the spool conduit member (11) or with the feed conduit member (12).
  6. 6. The high-precision reversing valve according to claim 1, wherein the large-flow passage (23) has a first large-flow port (231) and a second large-flow port (232), the first large-flow port (231) communicates with the first pump piping member (13) in a large discharge state, the second large-flow port (232) communicates with the discharge port (111), and the piping ports of the first pump piping member (13), the first large-flow port (231), the second large-flow port (232), and the discharge port (111) are not on the same straight line.
  7. 7. The high-precision reversing valve according to claim 1, wherein the small flow passage (24) has a first small flow port (241) and a second small flow port (242), the first small flow port (241) communicates with the second pump piping member (14) in a small discharge state, the second small flow port (242) communicates with the discharge port (111), and the pipe orifice of the second pump piping member (14), the first small flow port (241), the second small flow port (242), and the discharge port (111) are on the same straight line.
  8. 8. The high-precision reversing valve according to claim 2, wherein the first valve body (21) and the second valve body (22) are integrally formed and are both spherical valves.
  9. 9. High-precision reversing valve according to claim 1, characterized in that the large flow channel (23), the small flow channel (24) and the feed channel (25) are not in communication with each other.
  10. 10. An intelligent color mixer comprising a high-precision reversing valve according to any one of claims 1-9.

Description

High-precision reversing valve and intelligent color mixer Technical Field The utility model relates to the technical field of intelligent color matching, in particular to a high-precision reversing valve and an intelligent color matching machine. Background The paint is a viscous liquid which is coated on the surface of a protected or decorated object and can form a continuous film firmly attached to the coated object, and is prepared by adding pigment, filler and corresponding auxiliary agents and using organic solvent or water, wherein the resin, the oil or the emulsion is mainly used, and the paint has good application scenes in the fields of automobiles, buildings, furniture, printing, spinning, pigments and the like. The paint is usually mixed before use, namely, the paint with the required color is obtained by mixing a plurality of paints with different colors according to a certain proportion, but the accuracy requirement on the mixing amount of the paint with each color is extremely high. The existing color matching machines are mainly provided with three working modes of large-flow quick discharging, small-flow precise discharging and pumping suction, and the working modes are switched by rotating a valve core, wherein the paint can be pumped into a material pump barrel from a material storage barrel for subsequent discharging when pumping the suction, but the paint in the same material pump barrel is used for the large-flow quick discharging or the small-flow precise discharging, particularly when the small-flow precise discharging is carried out, the paint in the material pump barrel is required to be discharged through a small-flow precise channel, and part of paint is required to be refluxed into the material storage barrel through the large-flow quick channel, so that the paint in the material pump barrel is not equal to the actual discharging amount when the small-flow precise discharging is carried out, the discharging control is low, and the color deviation of the mixed paint is seriously influenced due to the fact that the discharging amount is not reduced. Disclosure of utility model Aiming at the defects of the prior art, the application provides a high-precision reversing valve and an intelligent color mixer. The application discloses a high-precision reversing valve which comprises a valve body assembly and a valve core assembly, wherein the valve body assembly comprises a valve core pipeline piece, a feeding pipeline piece, a first pressure pump pipeline piece and a second pressure pump pipeline piece, the feeding pipeline piece, the first pressure pump pipeline piece and the second pressure pump pipeline piece are respectively communicated with the valve core pipeline piece, the valve core assembly is rotationally arranged in the valve core pipeline piece, a discharge port of the valve core pipeline piece, a pipeline port of the first pressure pump pipeline piece and a pipeline port of the second pressure pump pipeline piece are respectively abutted with a rotating surface of the valve core assembly, a large-flow channel, a small-flow channel and a feeding channel are respectively arranged in the valve core assembly, the valve core assembly after rotation is in a large-discharge state and a small-discharge state, the large-flow channel is respectively communicated with the first pressure pump pipeline piece and the discharge port in the large-discharge state, the small-flow channel is staggered with the discharge port, and the small-flow channel is respectively communicated with the second pressure pump pipeline piece and the feeding pipeline piece in the small-discharge state. Preferably, the valve core assembly comprises a first valve body and a second valve body which are rotatably arranged in the valve core pipeline piece, the rotating surface of the first valve body is abutted with the pipeline port of the first pressure pump pipeline piece, the rotating surface of the second valve body is respectively abutted with the pipeline port and the discharge port of the second pressure pump pipeline piece, the small flow channel and the feeding channel are arranged in the second valve body, the large flow channel is arranged in the first valve body and the second valve body, and the two ports of the large flow channel are respectively arranged in the rotating surface of the first valve body and the rotating surface of the second valve body. Preferably, the valve core assembly is also provided with a pressure relief channel, and the pressure relief channel is respectively communicated with the second pressure pump pipeline piece and the valve core pipeline piece in a large discharging state. Preferably, the feeding channel is provided with a first feeding port, a second feeding port and a third feeding port, the valve core assembly after rotation is also provided with a feeding state, wherein in the feeding state, the first feeding port is communicated with the valve core pipeline piece