CN214999567U - Liquid reversing valve for color mixer and color mixer - Google Patents

Abstract

The utility model provides a liquid switching-over valve and color mixer for color mixer. Wherein, liquid switching-over valve includes: the valve body is provided with a first communicating port and a second communicating port, and is also provided with a guide frame, and a non-circular guide hole is formed in the guide frame; the valve core is rotatably arranged in the valve body in a penetrating way and is provided with a first channel; one end of the valve rod is in threaded fit with the valve core, the other end of the valve rod is matched with the shape of the guide hole and penetrates through the guide hole, the valve rod only translates relative to the valve body along the axial direction of the valve core along with the rotation of the valve core, and when the valve rod is close to the first communication port, the end face of the valve rod is abutted to and seals the first communication port; when the valve core rotates to drive the valve rod to be far away from the first communicating opening, the end face of the valve rod avoids the first communicating opening, meanwhile, the first channel is communicated with the second communicating opening, and the first communicating opening is communicated with the second communicating opening through the first channel. The utility model provides a sealed poor problem of effect of three-way reversing valve of color mixer among the prior art.

Description

Liquid reversing valve for color mixer and color mixer

Technical Field

The utility model relates to a valve technical field is annotated out to the liquid way, particularly, relates to a liquid switching-over valve and color mixer for color mixer.

Background

The color mixer is a color matching device for preparing paint (particularly emulsion paint) with required color, and the existing automatic color mixer is mainly divided into two categories according to different color paste injection modes: one by one and simultaneously into the automatic tinting machine.

The color paste injection system comprises a group of color paste barrels (generally 16) filled with different colors, each color paste barrel is connected with a corresponding color paste quantitative injection pump through a three-way reversing valve, and an inlet of each three-way reversing valve is communicated with a corresponding color paste outlet to realize quantitative injection of the color paste. The color pastes of different colors are respectively arranged in the corresponding color paste barrels so as to realize the injection of the corresponding color pastes according to different color mixing requirements.

As shown in figures 1 and 2, the color paste injection system of the prior color mixer is provided with a three-way reversing valve 10 ', the three-way reversing valve 10' is positioned between a color paste channel 20 'and a piston type quantitative discharging pump 30', and a paste outlet 40 'is arranged below the front surface of the three-way reversing valve 10'. As shown in FIG. 1, the three-way reversing valve 10 ' in the initial position allows the piston-type metering pump 30 ' to be connected to the color paste port 20 ' and the passage between the paste outlet 40 ' and the piston-type metering pump 30 ' to be closed. When the quantitative color matching is used, the piston rod and the piston on the piston type quantitative discharge pump 30 ' are pulled out by a certain required length by the lifting mechanism, and the color paste in the color paste channel 20 ' can enter the measuring cylinder on the piston type quantitative discharge pump 30 ' according to a specified amount. Next, as shown in FIG. 2, the three-way selector valve 10 ' is rotated by a certain angle so that the passage between the piston-type quantitative delivery pump 30 ' and the outlet 40 ' is opened and the passage between the piston-type quantitative delivery pump 30 ' and the color paste outlet 20 ' is closed. The piston and the piston rod are moved downwards for a certain distance, and the color paste sucked in the piston type quantitative discharging pump 30 'can be discharged from the paste outlet 40'. After finishing pouring out the color paste quantitatively, the operating mechanism resets the three-way reversing valve 10'.

In the technical scheme, the sealing state between the color paste barrel and the paste outlet is realized through the contact surface between the valve body and the valve core in the three-way reversing valve, the manufacturing precision is not enough, the assembly precision does not reach the standard, the sealing is not tight due to the comprehensive influence of single or multiple factors such as the abrasion of the torsional contact surface of the valve body and the valve core after the three-way reversing valve is used, and the paste leakage and the material leakage are caused in the working procedure that the material is not discharged; in addition, especially for some valve bodies made of plastic materials, color paste with certain properties can aggravate expansion or contraction of the valve body and influence the sealing effect.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide a liquid switching-over valve and color mixer for color mixer to solve the poor problem of sealed effect of the tee bend switching-over valve of the color mixer among the prior art.

In order to achieve the above object, according to an aspect of the present invention, there is provided a liquid direction changing valve for a color mixer, comprising: the valve body is provided with a first communicating port and a second communicating port, and is also provided with a guide frame, and a non-circular guide hole is formed in the guide frame; the valve core is rotatably arranged in the valve body in a penetrating way and is provided with a first channel used for communicating the first communicating port with the second communicating port; the valve rod penetrates through the valve core and the valve body, one end of the valve rod is in threaded fit with the valve core, the other end of the valve rod is matched with the shape of the guide hole and penetrates through the guide hole, the valve rod only translates relative to the valve body along the axial direction of the valve core along the rotation of the valve core, the valve rod moves between positions close to or far away from the first communication port, and when the valve rod is close to the first communication port, the end face of the valve rod abuts against and blocks the first communication port so that the first communication port and the second communication port are separated and disconnected; when the valve core rotates to drive the valve rod to be far away from the first communicating opening, the end face of the valve rod avoids the first communicating opening, meanwhile, the first channel is communicated with the second communicating opening, and the first communicating opening is communicated with the second communicating opening through the first channel.

Further, the valve rod is stepped shaft shape, the small diameter section of the valve rod penetrates through the valve core and is in threaded fit with the valve core, the large diameter section of the valve rod extends out of the valve core and is disc-shaped, and the end face of the large diameter section abuts against or is separated from the end part of the first communication port to block the first communication port or leave the first communication port.

Furthermore, a driving nut is fixedly arranged in the valve core, the valve rod is in threaded fit with the driving nut, and when the valve core rotates, the driving nut synchronously rotates to drive the valve rod to axially move.

Furthermore, the first channel extends along the axial direction of the valve core to form a strip shape, and one end of the first channel is communicated with the outer edge of the end face of the valve core, which is close to the first communication port.

Further, the valve body includes: a body portion; the first valve cover is arranged on one side of the body part in a covering mode, and the valve core penetrates through the first valve cover and extends into the body part; the second valve cover is arranged on one side, far away from the first valve cover, of the body part and is provided with a first communication port, and the end face of the valve rod can abut against the end face of the second valve cover so as to abut against and seal the first communication port.

Furthermore, the valve body is provided with a slurry outlet, the valve core is provided with a central channel, the valve rod is arranged in the central channel in a penetrating way, and the two ends of the central channel are sealed, the side wall of the central channel is provided with a first grouting opening and a second grouting opening, the first grouting opening is matched with the second communicating opening, the second grouting opening is matched with the grout outlet, when the valve rod blocks the first communicating port, the first channel and the second communicating port are sealed in a staggered manner, the first grouting port and the second communicating port are sealed in a staggered manner, the second grouting port and the grout outlet are sealed in a staggered manner, when the valve core rotates to drive the valve rod to avoid the first communicating port and the first channel is communicated with the second communicating port in a butt joint way, the first grouting port and the second communication port are sealed in a staggered way, the second grouting port and the grout outlet are sealed in a staggered way, when the valve core continues to rotate until the first grouting port is in butt joint communication with the second communication port, the second grouting port is in butt joint communication with the grout outlet, and the first channel and the second communication port are sealed in a staggered mode.

Furthermore, the valve body is stretched out to the one end that first intercommunication mouth was kept away from to the case, and liquid switching-over valve still includes operating handle, and operating handle is connected with the one end that the case stretches out the valve body to can drive the case and rotate.

According to the utility model discloses an on the other hand provides a color mixer, including mill base container, filling pump and foretell liquid switching-over valve, mill base container and filling pump all communicate with liquid switching-over valve.

Use the technical scheme of the utility model, through case and valve rod screw-thread fit, the valve rod owing to with the cooperation between the guiding hole, make the valve rod only can the translation and unable rotation, and the rotation of case can pass through screw drive valve rod axial displacement on the one hand, thereby be close to or keep away from first intercommunication mouth, thereby realize the opening and closing of valve rod end face to first intercommunication mouth, the position of first passageway has still been adjusted in the rotation of case simultaneously, make first passageway switch between with second intercommunication mouth butt joint and staggered position, thus, can realize the break-make switching between first intercommunication mouth and the second intercommunication mouth through cooperation between valve rod end face and the valve body terminal surface and the cooperation between case outer peripheral face and the valve body inner peripheral surface. Above-mentioned mode of setting up is kept realizing sealed basis through the contact surface between valve body inner wall and the case surface on, add valve rod terminal surface and valve body terminal surface and mutually support, constitute another liquid way seal structure, two seal structures have constituteed liquid material sealing system jointly, have weakened the manufacturing accuracy not enough, the assembly precision is not up to standard, factor influences such as use wearing and tearing to reach better sealed effect.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram of a color paste injection system of a color mixer in the prior art;

FIG. 2 is a schematic structural diagram of the color paste injection system in FIG. 1 during paste discharge;

fig. 3 shows a schematic structural view of the liquid diverter valve of the present invention;

FIG. 4 shows a rear view of FIG. 3;

FIG. 5 is a schematic diagram of the liquid diverter valve of FIG. 3 with the valve stem blocking the first communication port;

FIG. 6 is a schematic diagram of the liquid diverter valve of FIG. 3 with the valve stem clear of the first communication port;

FIG. 7 is a schematic structural view of the liquid diverter valve of FIG. 3 when the second communication port is in communication with the slurry outlet;

FIG. 8 is a schematic diagram showing the construction of the valve stem of the liquid diverter valve of FIG. 3;

FIG. 9 illustrates a schematic structural view of a second valve cover of the liquid diverter valve of FIG. 3;

FIG. 10 is a schematic view of the fluid diverter valve of FIG. 3 in cooperation with an infusion pump;

FIG. 11 is a schematic view showing the construction of the liquid direction valve of FIG. 3 when a second injection port having a different size is provided;

fig. 12 is a schematic structural view of the liquid direction valve in fig. 3 when the return hole communicates with the second communication port.

Wherein the figures include the following reference numerals:

10', a three-way reversing valve; 20' and a color paste barrel; 30', a piston type quantitative feeding pump; 40' and a pulp outlet; 10. a valve body; 11. a first communication port; 12. a second communication port; 13. a guide frame; 131. a guide hole; 14. a body portion; 15. a first valve cover; 16. a second valve cover; 17. a pulp outlet; 20. a valve core; 21. a first channel; 22. a central channel; 23. a first grouting port; 24. a second grouting port; 25. driving a nut; 26. a return orifice; 30. a valve stem; 31. a large diameter section; 32. an external thread; 33. a large section; 34. a small segment; 40. an operating handle; 50. and (4) an injection pump.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present application, where the contrary is not intended, the use of directional words such as "upper, lower, top and bottom" is generally with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, perpendicular or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

In order to solve the poor problem of sealed effect of the tee bend switching-over valve of the color mixer among the prior art, the utility model provides a liquid switching-over valve and color mixer for color mixer. The liquid in this embodiment includes color paste used in the color matching of the emulsion paint, and also includes color master for the color matching of the automobile repair paint. In the following description, the color paste is collectively referred to as "color paste".

As shown in fig. 3 to 12, the liquid reversing valve for a color mixer includes a valve body 10, a valve core 20, and a valve rod 30, wherein the valve body 10 has a first communication port 11 and a second communication port 12, the valve body 10 further has a guide frame 13, and the guide frame 13 is formed with a non-circular guide hole 131; the valve core 20 is rotatably inserted into the valve body 10 and has a first passage 21 for communicating the first communication port 11 and the second communication port 12; the valve rod 30 is arranged on the valve core 20 and the valve body 10 in a penetrating mode, one end of the valve rod 30 is in threaded fit with the valve core 20, the other end of the valve rod 30 is matched with the shape of the guide hole 131 and arranged in the guide hole 131 in a penetrating mode, the valve rod 30 only moves in a translational mode relative to the valve body 10 along the axial direction of the valve core 20 along the rotation of the valve core 20, the valve rod 30 moves between positions close to or far away from the first communication port 11, when the valve rod 30 is close to the first communication port 11, the end face of the valve rod 30 abuts against and blocks the first communication port 11, and therefore the first communication port 11 and the second communication port 12 are separated and disconnected; when the valve core 20 rotates to drive the valve rod 30 to be away from the first communication port 11, the end surface of the valve rod 30 is avoided from the first communication port 11, the first passage 21 is communicated with the second communication port 12, and the first communication port 11 is communicated with the second communication port 12 through the first passage 21.

In the embodiment, the valve core 20 is in threaded fit with the valve rod 30, the valve rod 30 is matched with the guide hole 131, so that the valve rod 30 can only translate and cannot rotate, on one hand, the valve core 20 rotates to drive the valve rod 30 to axially move through threads, so that the valve rod is close to or far away from the first communication port 11, so that the first communication port 11 is opened and closed by the end surface of the valve rod 30, meanwhile, the position of the first channel 21 is adjusted by the rotation of the valve core 20, so that the first channel 21 is switched between the butt joint and the staggered position with the second communication port 12, and thus, the on-off switching between the first communication port 11 and the second communication port 12 can be realized through the matching between the end surface of the valve rod 30 and the end surface of the valve body 10 and the matching between the outer peripheral surface of the valve core 20 and the inner peripheral surface of the valve body 10. According to the setting mode, on the basis that sealing is realized by keeping a contact surface between the inner wall of the valve body 10 and the outer surface of the valve core 20, the end surface of the valve rod 30 is additionally arranged to be matched with the end surface of the valve body 10 to form another liquid path sealing structure, and the two sealing structures jointly form a liquid material sealing system, so that the manufacturing precision is weakened to be insufficient, the assembly precision is not up to standard, and the influence of factors such as abrasion is used, and the better sealing effect is achieved.

In this embodiment, the valve rod 30 is the step shaft form, and the path section of valve rod 30 is worn to establish in case 20 for with case 20 screw-thread fit and realize other cooperation demands, and case 20 is stretched out to the path section 31 of valve rod 30, and be the disc, thereby can regard as end cap shutoff first communication port 11, when valve rod 30 is close to first communication port 11, the terminal surface of path section 31 can support top or the separation with the tip of first communication port 11 promptly, thereby realize shutoff first communication port 11 or leave the effect of first communication port 11.

As shown in fig. 5, in the present embodiment, for convenience of manufacture, installation and maintenance, a driving nut 25 is fixedly disposed at an end of the valve core 20 away from the first communication port 11, an external thread 32 is disposed at an end of the valve rod 30 away from the first communication port 11, that is, an end of the small diameter section, and the external thread 32 is in threaded engagement with an internal thread of the driving nut 25, so that when the valve core 20 rotates, the driving nut 25 synchronously rotates and drives the valve rod 30 to axially move.

As shown in fig. 4 and 9, two protrusions extending toward the center direction are formed at the first communication port 11 of the valve body 10, the two protrusions are circumferentially spaced and serve as the guide frame 13, and are respectively located at two opposite sides of the first communication port 11 in the circumferential direction, the guide hole 131 is formed at the radial space between the two protrusions, one end of the valve rod 30 can extend into the first communication port 11, the end is set to be a non-circular structure having the same shape as the guide hole 131, the non-circular structure extends into the two protrusions and can be abutted against the two protrusions, so that the circumferential rotation of the valve rod 30 is limited, the valve rod 30 can only move along the axial direction, and the reliability of the movement of the valve rod 30 is ensured. Of course, the specific structure and the installation position of the guide frame 13 may be adjusted as needed as long as the rotation of the valve rod 30 can be limited.

In this embodiment, the first channel 21 extends along the axial direction of the valve core 20 to form a strip shape, and one end of the first channel 21 is communicated with the outer edge of the end surface of the valve core 20 close to the first communication port 11, so that when the valve rod 30 is far away from the first communication port 11, the color paste can enter the second communication port 12 through the first communication port 11 and the gap obtained when the valve rod 30 is far away from the first communication port 11, and the first channel 21. Of course, the shape and position of the first passage 21 may be adjusted as necessary as long as communication between the first communication port 11 and the second communication port 12 is possible.

As shown in fig. 5 to 7, the valve body 10 includes a body 14, a first valve cover 15 and a second valve cover 16, the first valve cover 15 is disposed on one side of the body 14, and the valve core 20 is disposed on the first valve cover 15 and extends into the body 14; the second valve cover 16 is provided on the side of the body 14 away from the first valve cover 15, and has a first communication opening 11, and an end surface of the stem 30 can abut against an end surface of the second valve cover 16 to close the first communication opening 11. In the present embodiment, the main body 14, the first valve cover 15 and the second valve cover 16 are separately provided for easy processing and manufacturing, but it is also possible to integrally provide the above components, for example, the valve core 20 is directly inserted into the end of the valve body 10, and the valve body 10 is provided with an annular protrusion to function as the second valve cover 16.

In the embodiment, the first communication port 11 is communicated with the color paste container, the second communication port 12 is communicated with the injection pump 50, and as shown in fig. 10, the matching of the end surface of the valve core 20 and the first communication port 11 realizes the on-off relationship between the injection pump 50 and the color paste container. Of course, the outer member to which the first communication port 11 and the second communication port 12 are connected may be changed as needed.

As shown in fig. 5 to 7, the valve body 10 is provided with a slurry outlet 17, the valve core 20 is provided with a central passage 22, the valve rod 30 is inserted into the central passage 22 and blocks two ends of the central passage 22, the side wall of the central passage 22 is provided with a first slurry injection port 23 and a second slurry injection port 24, the central passage 22, the first slurry injection port 23 and the second slurry injection port 24 are matched to form a second passage capable of communicating the second communication port 12 and the slurry outlet 17, wherein the first slurry injection port 23 is matched with the second communication port 12, and the second slurry injection port 24 is matched with the slurry outlet 17. As shown in fig. 8, the small diameter section of the valve rod 30 of the present embodiment is not a completely equal diameter, but a structure form of large diameter-small-large diameter is formed between the external thread 32 and the large diameter section 31, wherein two large sections 33 are tightly fitted with the inner wall of the valve core 20 to plug the two ends of the central passage 22, and a gap is formed between the middle small section 34 and the inner wall of the valve core 20, the gap is a portion of the central passage 22 through which color paste can flow, and the color paste can flow between the first injection port 23 and the second injection port 24 through the central passage 22.

The operation of the liquid-switching valve will be described below with reference to the communication ports, the grouting ports, and the like described above:

as shown in fig. 5, when initially closed, the valve rod 30 blocks the first communication port 11, and at this time, the first passage 21 and the second communication port 12 are alternately closed, the first injection port 23 and the second communication port 12 are alternately closed, the second injection port 24 and the outlet 17 are alternately closed, and the liquid direction changing valve is entirely closed.

As shown in fig. 6, when the injection pump 50 needs to suck color paste from the color paste container, the valve core 20 rotates and drives the valve rod 30 to be away from the first communicating port 11 by driving the screw 25 to thread, at this time, the valve core 20 rotates to a position where the first channel 21 is in butt communication with the second communicating port 12, the first communicating port 11 is communicated with the second communicating port 12 through the first channel 21, and the color paste can be sucked into the injection pump 50 through the first communicating port 11 and the gap where the valve rod 30 is away from the first communicating port 11, the first channel 21 and the second communicating port 12 in sequence. Meanwhile, the first grouting port 23 and the second communication port 12 are staggered and sealed, the second grouting port 24 and the grout outlet 17 are staggered and sealed, the first grouting port 23 and the second grouting port 24 are sealed by the inner wall surface of the valve body 10, and therefore the color paste cannot be ejected from the grout outlet 17.

As shown in fig. 7, when the color paste in the filling pump 50 needs to be pumped out of the liquid reversing valve from the paste outlet 17 after one suction stroke or suction amount of the filling pump 50 is completed, the valve core 20 continues to rotate for a certain distance, and at this time, the first communication port 11 and the second communication port 12 are disconnected because the first channel 21 and the second communication port 12 are staggered and closed. Meanwhile, the first grouting port 23 is in butt communication with the second communication port 12, the second grouting port 24 is in butt communication with the grout outlet 17, and the color paste is pumped out by the injection pump 50 through the second communication port 12, the first grouting port 23, the central passage 22, the second grouting port 24 and the grout outlet 17 in sequence.

After the whole operation is finished, the valve core 20 is rotated reversely, so that the valve rod 30 blocks the first communication port 11, the first grouting port 23 and the second grouting port 24 are respectively sealed with the second communication port 12 and the grout outlet 17 in a staggered manner, the liquid reversing valve is restored to the initial closing state, and one working process is finished.

Of course, the above operation mode can be changed according to the requirement, for example, when the injection pump 50 sucks the color paste, the valve core 20 rotates in one direction, when the injection pump 50 pumps the color paste, the valve core 20 rotates in the opposite direction, and the like. Further, the outer member to which the communication port is specifically connected, and the specific arrangement, arrangement position, and the like of each passage may be changed as needed, as long as the communication close relationship of the present embodiment can be achieved.

Alternatively, the second injection ports 24 may be provided in plural numbers as needed, and the size between the second injection ports 24 may be set correspondingly according to the flow rate needed. For example, as shown in fig. 11, two opposite sides of the valve core 20 are respectively provided with a second injecting port 24, and one of the two second injecting ports 24 has a larger diameter and the other has a smaller diameter, so that different second injecting ports 24 can be rotated to match with the outlet 17 as required, and the injecting of different metered color pastes can be realized.

Alternatively, the second communication port 12 may be provided in various forms, for example, in the present embodiment, two through holes are opened as the second communication port 12. The central passage 22 is further opened with a return hole 26, as shown in fig. 12, when the valve core 20 rotates to a specific angle, the two through holes can be respectively communicated with the return hole 26 and the first passage 21, thereby realizing a strong return function.

In this embodiment, the valve core 20 is far away from the end of the first communication port 11 and extends out of the valve body 10, the liquid reversing valve further comprises an operating handle 40, and the operating handle 40 is connected with the end of the valve core 20 extending out of the valve body 10, so that the valve core 20 can be driven by the operating handle 40 to rotate in a manual or automatic mode, and the switching of the state of the liquid reversing valve is realized.

Optionally, the grouting opening of the embodiment is formed in the lower end face of the valve body 10, so that the blanking can be performed by means of the self weight and the flowability of the color paste liquid, and the operation is convenient and fast. Of course, the paste injection port can be disposed at other positions of the valve body 10, and the color paste can be injected from the paste outlet 17 by the pressure of the injection pump 50.

The embodiment also provides a color mixer which comprises a color paste container, an injection pump 50 and the liquid reversing valve, wherein the color paste container and the injection pump 50 are respectively communicated with the first communication port 11 and the second communication port 12 of the liquid reversing valve.

It should be noted that, a plurality in the above embodiments means at least two.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

1. the problem of poor sealing effect of a three-way reversing valve of the color mixer in the prior art is solved;

2. on the basis of keeping the sealing realized by the contact surface between the inner wall of the valve body and the outer surface of the valve core, the end surface of the valve rod is additionally arranged to be matched with the end surface of the valve body to form another liquid path sealing structure, and the two sealing structures jointly form a liquid material sealing system, so that the influences of factors such as insufficient manufacturing precision, substandard assembly precision, use abrasion and the like are weakened, and a better sealing effect is achieved;

3. the whole structure is simple, and the use and the operation are convenient.

It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A liquid diverter valve for a tinting machine, comprising:

a valve body (10), wherein the valve body (10) is provided with a first communication port (11) and a second communication port (12), the valve body (10) is further provided with a guide frame (13), and the guide frame (13) is provided with a non-circular guide hole (131);

a valve core (20), wherein the valve core (20) is rotatably arranged in the valve body (10) in a penetrating mode and is provided with a first channel (21) used for communicating the first communication port (11) and the second communication port (12);

the valve rod (30) is arranged on the valve core (20) and the valve body (10) in a penetrating mode, one end of the valve rod (30) is in threaded fit with the valve core (20), the other end of the valve rod (30) is matched with the shape of the guide hole (131) and is arranged in the guide hole (131) in a penetrating mode, along with rotation of the valve core (20), the valve rod (30) only translates relative to the valve body (10) along the axial direction of the valve core (20), the valve rod (30) moves between positions close to or far away from the first communication port (11), and when the valve rod (30) is close to the first communication port (11), the end face of the valve rod (30) abuts against and blocks the first communication port (11) so that the first communication port (11) is separated from the second communication port (12); when the valve core (20) rotates to drive the valve rod (30) to be far away from the first communication port (11), the end face of the valve rod (30) is avoided from the first communication port (11), meanwhile, the first channel (21) is communicated with the second communication port (12), and the first communication port (11) is communicated with the second communication port (12) through the first channel (21).

2. The liquid reversing valve according to claim 1, wherein the valve rod (30) is in a stepped shaft shape, a small diameter section of the valve rod (30) penetrates through the valve core (20) and is in threaded fit with the valve core (20), a large diameter section (31) of the valve rod (30) extends out of the valve core (20) and is in a disc shape, and an end face of the large diameter section (31) abuts against or is separated from an end part of the first communication hole (11) so as to block the first communication hole (11) or leave the first communication hole (11).

3. The liquid reversing valve according to claim 1, wherein a driving nut (25) is fixedly arranged in the valve core (20), the valve rod (30) is in threaded fit with the driving nut (25), and when the valve core (20) rotates, the driving nut (25) synchronously rotates to drive the valve rod (30) to axially move.

4. The liquid change valve according to claim 1, wherein the first channel (21) is formed in a strip shape along the axial extension of the valve core (20), and one end of the first channel (21) is communicated with the outer edge of the end surface of the valve core (20) close to the first communication hole (11).

5. A liquid reversing valve according to claim 1, characterized in that the valve body (10) comprises:

a body portion (14);

the first valve cover (15) is arranged on one side of the body part (14) in a covering mode, and the valve core (20) penetrates through the first valve cover (15) and extends into the body part (14);

and the second valve cover (16) is arranged on one side, away from the first valve cover (15), of the body part (14) in a covering mode, and is provided with the first communication opening (11), and the end face of the valve rod (30) can abut against the end face of the second valve cover (16) so as to abut against and seal the first communication opening (11).

6. The liquid reversing valve according to claim 1, wherein the valve body (10) is provided with a slurry outlet (17), the valve core (20) is provided with a central passage (22), the valve rod (30) penetrates through the central passage (22) and seals two ends of the central passage (22), the side wall of the central passage (22) is provided with a first slurry injection port (23) and a second slurry injection port (24), the first slurry injection port (23) is matched with the second communication port (12), the second slurry injection port (24) is matched with the slurry outlet (17), when the valve rod (30) seals the first communication port (11), the first passage (21) is staggered and sealed with the second communication port (12), the first slurry injection port (23) is staggered and sealed with the second communication port (12), and the second slurry injection port (24) is staggered and sealed with the slurry outlet (17), when the valve core (20) rotates to drive the valve rod (30) to avoid the first communication port (11), the first channel (21) is in butt joint communication with the second communication port (12), the first grouting port (23) and the second communication port (12) are staggered and sealed, the second grouting port (24) and the grout outlet (17) are staggered and sealed, when the valve core (20) continues to rotate until the first grouting port (23) is in butt joint communication with the second communication port (12), the second grouting port (24) is in butt joint communication with the grout outlet (17), and the first channel (21) and the second communication port (12) are staggered and sealed.

7. The liquid reversing valve according to claim 1, wherein one end of the valve core (20) far away from the first communication port (11) extends out of the valve body (10), the liquid reversing valve further comprises an operating handle (40), and the operating handle (40) is connected with one end of the valve core (20) extending out of the valve body (10) and can drive the valve core (20) to rotate.

8. A tinting machine comprising a tint base container, an injection pump (50) and a liquid diverter valve according to any one of claims 1 to 7, the tint base container and the injection pump (50) both being in communication with the liquid diverter valve.

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