High-tightness reversing ball valve and color mixer

Abstract

The high-sealing-performance reversing ball valve comprises a pipeline part, a valve element part and a sealing part, and the pipeline part comprises a valve element pipeline and a feeding pipeline; the valve element part is rotationally arranged in the valve element pipeline, the sealing face of the valve element part faces the feeding pipeline, a sealing groove is formed in the sealing face, a feeding channel and a discharging channel are formed in the valve element part, the sealing part comprises a sealing pipeline, a first elastic part and a sealing block, a feeding port is formed in the end face of the sealing pipeline, the first elastic part is arranged in the sealing pipeline in a penetrating mode, and the sealing block is arranged in the sealing pipeline. The sealing block is connected to the other end of the first elastic part. Through the arrangement of the sealing groove and the sealing block, in the discharging state, the sealing block abuts against the sealing face and is attached to the feeding port in a sealed mode, so that the feeding port is completely sealed, color paste is prevented from flowing back into the feeding pipeline through the feeding port during discharging, the sealing performance of the feeding pipeline in the discharging state is improved, and the discharging precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent color adjustment, in particular to a high-sealability reversing ball valve and a color adjustment machine. Background Art

[0002] A color mixer is a device used for precise color mixing, primarily mixing different color pastes in a specific ratio to create the desired color. A color mixer typically includes multiple discharge pumps, each pumping a specific color. The core component of each pump is the reversing valve within it, which switches between pumping and various discharging states by rotating the reversing valve. Common reversing valves include cylindrical valves and spherical valves. For example, a high-precision reversing ball valve and an intelligent color mixing machine disclosed in publication number CN118815951A use a reversing ball valve, and its feed pipe is directly in contact with the sealing surface of the valve core. During the rotation of the valve core, the color paste in the feed pipe will be smeared onto the sealing surface, and the color paste on the sealing surface is easy to dry and form tiny bumps or undulations on the surface of the sealing surface, making it difficult for the feed pipe to maintain a close contact with the sealing surface. As a result, when the color paste is discharged, a small amount of the color paste will flow back into the barrel from the gap between the feed pipe and the sealing surface, affecting the accuracy of the color paste discharge. Utility Model Content

[0003] In view of the deficiencies in the prior art, the present application provides a high-sealing reversing ball valve and a color mixing machine.

[0004] The spool piece is provided with a sealing surface and a sealing groove, and a feed channel and a discharge channel are provided in the spool piece. The feed channel has a first port and a second port, the first port is provided at the bottom of the sealing groove, the second port is connected to the spool piece, the discharge channel has a fourth port and a fifth port, the fourth port is provided at the conversion surface of the spool piece, the conversion surface is in contact with the discharge channel, and the fifth port is connected to the spool piece. The valve core is connected to the feed port; the sealing component includes a sealing pipe, a first elastic part and a sealing block, the sealing pipe is passed through the feed pipe, and a feed port is opened on the end face of the sealing pipe, the first elastic part is passed through the sealing pipe, and one end of the first elastic part is connected to the feed pipe, and the other end of the first elastic part extends toward the outside of the sealing pipe after passing through the feed port, and the sealing block is connected to the other end of the first elastic part and is opposite to the feed port; after the valve core is rotated, it has a feeding state and a discharging state, wherein in the feeding state, part of the sealing block extends into the sealing groove, and the sealing block is away from the feed port, so that the feed port is connected to the first port; in the discharging state, the sealing block abuts against the sealing surface, so that the sealing block is closed to the feed port, and the fourth port is connected to the discharge port.

[0005] Preferably, a limiting conical surface is provided at one end of the sealing block facing the sealing surface; in the feeding state, the limiting conical surface abuts against the opening of the sealing groove, so that part of the sealing block extends into the sealing groove.

[0006] Preferably, a sliding slope is provided at the edge of the sealing groove opening; in the feeding state, the limiting cone fits the sliding slope; when switching from the feeding state to the discharging state, the valve core is rotated, and the limiting cone and the sliding slope slide relative to each other.

[0007] Preferably, the sealing member further comprises a second elastic portion, one end of the second elastic portion is connected to the feed pipe, and the other end of the second elastic portion is connected to the sealing pipe.

[0008] Preferably, a blocking block is provided at the pipe opening of the feed pipe, and the blocking block prevents the sealing pipe from extending out of the feed pipe.

[0009] Preferably, the valve core component is also provided with a small discharge channel and a pressure channel, the two ports of the small discharge channel are respectively provided on two sides opposite to each other on the conversion surface, the pressure channel has a seventh port and an eighth port, the seventh port is provided on the conversion surface, the eighth port is connected to the valve core pipeline, the discharge channel also has a sixth port, the sixth port is provided at the bottom of the sealing groove and is adjacent to the first port; the pipeline component also includes a large pump pipeline and a small pump pipeline arranged side by side beside the large pump pipeline, the large pump pipeline is connected to the valve core pipeline, the small pump pipeline is connected to the valve core pipeline and abuts the conversion surface; after rotating the valve core component, it also has a small discharge state, the two ports of the small discharge channel are respectively connected to the small pump pipeline and the discharge port, part of the sealing block extends into the sealing groove, and the sixth port is connected to the feed port.

[0010] Preferably, the feed channel further has a third port, which is opened on the conversion surface; in the feeding state, the third port is connected to the small pump pipeline.

[0011] Preferably, the high-sealing reversing ball valve also includes a piston member, which includes a large piston part, a small piston part and a linkage part. One end of the large piston part is movably arranged in the large pump pipeline, and the other end of the large piston part passes through the large pump pipeline and extends to the outside. One end of the small piston part is movably arranged in the small pump pipeline, and the other end of the small piston part passes through the small pump pipeline and extends to the outside. The linkage part connects the other end of the large piston part and the other end of the small piston part respectively.

[0012] Preferably, the valve core pipeline includes a valve core pipeline body and a bottom cover, the bottom inner wall ring of the valve core pipeline body is provided with a first thread, the outer ring of the bottom cover is provided with a second thread, the bottom cover is screwed to the valve core pipeline body through the first thread and the second thread, the discharge port is opened in the bottom cover, the feed pipeline is connected to the valve core pipeline body, the valve core part is rotatably arranged in the valve core pipeline body, and the valve core pipeline body is respectively connected to the second port and the fifth port.

[0013] The present application also discloses a color mixing machine, comprising a high-sealing reversing ball valve.

[0014] The beneficial effects of the present application are as follows: since the first port of the feed channel is opened at the bottom of the sealing groove, in the feeding state, the first elastic portion pushes the sealing block partially into the sealing groove, so that the sealing block is away from the feed port, thereby allowing the feed port to open and communicate with the first port, and the color paste in the feed pipe can enter the valve core pipe through the feed channel. In the discharging state, the sealing block abuts against the sealing surface, compresses the first elastic portion and fits and seals the feed port, thereby closing the feed port, and the color paste in the valve core pipe can be discharged from the discharge port through the discharge channel. Moreover, since the feed port is completely closed, the color paste cannot flow back into the feed pipe through the feed port during discharging, thereby improving the sealing performance of the feed pipe in the discharging state and improving the discharge accuracy.

[0015] At the same time, the present application can also realize two discharging modes, large discharging and small discharging. In the case of small discharging, only the small pump pipeline cooperates with the small discharging channel to perform small discharging, and the color paste in the large pump pipeline flows back into the barrel, and the channel radius of the small discharging channel is much smaller than the channel radius of the discharging channel, so that small flow rate and precise discharging can be achieved, thereby improving the accuracy of discharging. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 This is a cross-sectional view of the high-sealing reversing ball valve when the feed port is open in the embodiment;

[0018] Figure 2 for Figure 1 Enlarged view of part A;

[0019] Figure 3 This is a cross-sectional view of the high-sealability reversing ball valve when the feed port is closed in the embodiment;

[0020] Figure 4 for Figure 3 Enlarged view of part B;

[0021] Figure 5 Schematic diagram of the structure of the valve core member in the embodiment;

[0022] Figure 6 is a cross-sectional view of a high-sealing reversing ball valve in an embodiment;

[0023] Figure 7 A perspective view of the inner passage of the valve core member in the embodiment;

[0024] Figure 8 is another perspective view of the inner passage of the valve core member in the embodiment;

[0025] Figure 9 Schematic diagram of the structure of the pipeline in the embodiment;

[0026] Figure 10 Schematic diagram of the structure of the valve core and the sealing member when the feed port is opened in the embodiment;

[0027] Figure 11 Another structural diagram of the valve core member and the sealing member when the feed port is opened in the embodiment;

[0028] Figure 12 This is a schematic diagram of the structure of the sealing member when the feed port is opened in the embodiment;

[0029] Figure 13This is a schematic diagram of the structure of the sealing member when the feed port is closed in the embodiment;

[0030] Figure 14 This is a schematic diagram of the high-sealing reversing ball valve when the feed port is open in the embodiment;

[0031] Figure 15 This is a schematic diagram of the high-sealing reversing ball valve when the feed port is closed in the embodiment;

[0032] Figure 16 It is a cross-sectional view of the valve core member in the feeding state in the embodiment;

[0033] Figure 17 It is a cross-sectional view of the valve core member in the large discharge state in the embodiment;

[0034] Figure 18 It is a cross-sectional view of the valve core component in the small discharge state in the embodiment.

[0035] Reference numerals:

[0036] 1. Pipe fittings; 11. Valve core pipe; 111. Discharge port; 112. Valve core pipe body; 113. Bottom cover; 114. Second cavity; 115. Fixing block; 12. Feed pipe; 121. Blocking block; 13. Large pump pipe; 14. Small pump pipe; 2. Valve core; 21. Sealing surface; 211. Sealing groove; 2111. Sliding slope; 22. Conversion surface; 23. Feed channel; 231. First port; 232. Second port; 233. Third port; 24. Discharge channel Channel; 241, fourth port; 242, fifth port; 243, sixth port; 25, small discharge channel; 26, valve core surface; 27, pressing channel; 271, seventh port; 272, eighth port; 3, sealing member; 31, sealing pipe; 311, feed port; 32, first elastic part; 33, sealing block; 331, limiting cone surface; 34, second elastic part; 4, piston member; 41, large piston part; 42, small piston part; 43, linkage part; 5, rotating handle; 100, barrel. DETAILED DESCRIPTION

[0037] The following diagrams illustrate various embodiments of the present application. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details are not intended to limit the present application. In other words, in some embodiments of the present application, these practical details are not essential. Furthermore, to simplify the drawings, some conventional structures and components are depicted in a simplified schematic manner.

[0038] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0039] In addition, in this application, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or ranking, nor are they used to limit this application. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0040] In order to further understand the application content, features and effects of this application, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0041] Example 1:

[0042] Reference Figure 1-Figure 5 , Figure 1 This is a cross-sectional view of the high-sealing reversing ball valve when the feed port is open in the embodiment. Figure 2 for Figure 1 A magnified view of part A in the middle. Figure 3 This is a cross-sectional view of the high-sealing reversing ball valve when the feed port is closed in the embodiment. Figure 4 for Figure 3 The enlarged view of part B in the middle Figure 5This is a structural schematic diagram of the valve core component in the embodiment. The high-sealing reversing ball valve in this embodiment includes a pipeline component 1, a valve core component 2 and a sealing component 3. The pipeline component 1 includes a valve core pipeline 11 and a feed pipeline 12. The valve core pipeline 11 and the feed pipeline 12 are connected. A discharge port 111 is opened at the bottom of the valve core pipeline 11. The valve core component 2 is rotatably arranged in the valve core pipeline 11. The valve core component 2 has a sealing surface 21 and a conversion surface 22. The sealing surface 21 of the valve core component 2 faces the feed pipeline 12. The sealing surface 21 is provided with a sealing groove 211. A feed channel 23 and a discharge channel 24 are provided in the valve core component 2. The feed channel 23 has a first port 231 and a second port 232. The first port 231 is provided at the bottom of the sealing groove 211. The second port 232 is connected to the valve core pipeline 11. The discharge channel 24 has a fourth port 241 and a fifth port 242. The fourth port 241 is provided at the conversion surface 22 of the valve core component 2. The conversion surface 22 abuts against the discharge port 111. The fifth port 242 is connected to the valve core pipeline 11. The sealing member 3 includes a sealing pipe 31, a first elastic portion 32, and a sealing block 33. The sealing pipe 31 is disposed within the feed pipe 12, and a feed port 311 is defined on the end surface of the sealing pipe 31. The first elastic portion 32 is disposed within the sealing pipe 31, with one end of the first elastic portion 32 connected to the feed pipe 12 and the other end of the first elastic portion 32 extending outward from the feed port 311. The sealing block 33 is connected to the other end of the first elastic portion 32 and faces the feed port 311. After rotation, the valve core 2 has a feeding state and a discharging state. In the feeding state, a portion of the sealing block 33 extends into the sealing groove 211, away from the feed port 311, thereby connecting the feed port 311 to the first port 231. In the discharging state, the sealing block 33 abuts the sealing surface 21, sealing the sealing block 33 at the feed port 311. The fourth port 241 is connected to the discharging port 111.

[0043] Reference Figure 6 , Figure 6This is a cross-sectional view of a high-sealing reversing ball valve in an embodiment. Since the first port 213 of the feed channel 23 is located at the bottom of the sealing groove 211, in the feeding state, the first elastic portion 32 pushes the sealing block 33 partially into the sealing groove 211, moving the sealing block 33 away from the feed port 311. This opens the feed port 311 and connects it to the first port 231, allowing the colorant in the feed pipe 12 to enter the valve core pipe 11 through the feed channel 23. In the discharging state, the sealing block 33 abuts the sealing surface 21, compressing the first elastic portion 32 and sealing against the feed port 311, thereby sealing the feed port 311. The colorant in the valve core pipe 11 can be discharged from the discharge port 111 through the discharge channel 24. Since the feed port 311 is completely sealed, the colorant cannot flow back into the feed pipe 12 through the feed port 311 during discharging. This improves the sealing performance of the feed pipe 12 in the discharging state and enhances the discharging accuracy. Specifically, in this embodiment, one end of the feed pipe 12 away from the valve core pipe 11 is communicated with the barrel 100 , and the barrel 100 is loaded with color paste.

[0044] Reference Figure 7 and Figure 8 , Figure 7 This is a perspective view of the inner channel of the valve core member in the embodiment. Figure 8This is another perspective view of the channel within the valve core member in the embodiment. Preferably, the valve core member 2 further has a small discharge channel 25 and a pressure channel 27. The two ports of the small discharge channel 25 are respectively opened on opposite sides of the conversion surface 22. The pressure channel 27 has a seventh port 271 and an eighth port 272. The seventh port 271 is opened on the conversion surface 22, and the eighth port 272 is connected to the valve core pipeline 11. The discharge channel 24 also has a sixth port 243, which is opened at the bottom of the sealing groove 211 and adjacent to the first port 231. The pipeline member 1 also includes a large pump pipeline 13 and a small pump pipeline 14 arranged side by side with the large pump pipeline 13. The large pump pipeline 13 is connected to the valve core pipeline 11, and the small pump pipeline 14 is connected to the valve core pipeline 11 and abuts the conversion surface 22. After rotating the valve core member 2, it also has a small discharge state. The two ends of the small discharge channel 25 are respectively connected to the small pump pipeline 14 and the discharge port 111. Part of the sealing block 33 extends into the sealing groove 211, and the sixth port 243 is connected to the feed port 311. In specific applications, the valve core member 2 in this embodiment is a spherical valve, and the two opposite sides of the valve core member 2 are flattened into planes, namely the sealing surface 21 and the valve core surface 26, and the arc surface in the middle of the valve core member 2 is the conversion surface 22. It can be understood that the rotation of the valve core member 2 is based on the line connecting the center of the sealing surface 21 and the center of the valve core surface 26 as the rotation axis. The valve core member 2 is equivalent to dividing the valve core pipeline 11 into two left and right cavities. For the sake of ease of introduction, the left and right cavities in this embodiment are respectively referred to as the first cavity and the second cavity 114. The valve core member 2 is rotatably arranged in the first cavity, with the sealing surface 21 facing the feed pipeline 12 and the valve core surface 26 facing the second cavity 114. The second cavity 114 is connected to the large pump pipeline 13. Specifically, the feed channel 23 also has a third port 233, which is opened on the conversion surface 22. In the feed state, the third port 233 is connected to the small pump pipeline 14. In other words, four independent channels are opened in the valve core member 2: the feed channel 23, the discharge channel 24, the small discharge channel 25 and the pressure channel 27, of which the first port 231 and the sixth port 243 are respectively opened in the sealing groove 211 of the sealing surface 21, the second port 232, the fifth port 242 and the eighth port 272 are respectively opened on the valve core surface 26, and the third port 233, the fourth port 241, the seventh port 271 and the two ports of the small discharge channel 25 are all opened on the conversion surface 22. In this way, the valve core member 2 has three states after rotation: the feed state, the discharge state and the small discharge state. In this embodiment, for the sake of distinction, the discharge state is referred to as the large discharge state. A rotating groove is also provided on the valve core surface 26 of the valve core component 2. The high-sealing reversing ball valve also includes a rotating handle 5. One end of the rotating handle 5 extends into the rotating groove, and the other end of the rotating handle 5 passes through the second cavity 114 and extends toward the outside of the valve core pipe 11. By rotating the other end of the rotating handle 5, the valve core component 2 can be driven to rotate, thereby switching to different discharging states or feeding states.

[0045] Re-reference Figure 6 Preferably, the high-sealing reversing ball valve further comprises a piston member 4, which comprises a large piston portion 41, a small piston portion 42 and a linkage portion 43. One end of the large piston portion 41 is movably disposed in the large pump conduit 13, and the other end of the large piston portion 41 extends outward after passing through the large pump conduit 13. One end of the small piston portion 42 is movably disposed in the small pump conduit 14, and the other end of the small piston portion 42 extends outward after passing through the small pump conduit 14. The linkage portion 43 connects the other end of the large piston portion 41 and the other end of the small piston portion 42, respectively. In specific applications, the small pump conduit 14 and the large pump conduit 13 are independent of each other and arranged side by side, and the large pump conduit 13 is connected to the second cavity 114. The small pump conduit 14 is connected to the valve core conduit 11, but the bottom of the small pump conduit 14 abuts the conversion surface 22, that is, the small pump conduit 14 is not directly connected to the valve core conduit 11, and can only be connected or disconnected with the valve core conduit 11 through the valve core member 2. The linkage 43 links the large piston 41 and the small piston 42 together, allowing them to move synchronously with each other using only a single drive source. In the large discharge mode, the large piston 41 and the small piston 42 descend within the large pump conduit 13 and the small pump conduit 14, respectively. The colorant in the large pump conduit 13 is pressed toward the second cavity 114 and discharged through the discharge channel 24 of the valve core 2. The colorant in the small pump conduit 14 enters the second cavity 114 through the pressure channel 27 and then discharges through the discharge channel 24 of the valve core 2. In the small discharge mode, the small piston 42 descends, pressing the colorant in the small pump conduit 14 into the small discharge channel 25 of the valve core 2, allowing the small discharge to proceed through the discharge port 111. Meanwhile, the large piston 41 descends simultaneously, pressing the colorant in the large pump conduit 13 into the second cavity 114 of the valve core conduit 11, where it flows back through the discharge channel 24 into the feed conduit 12 and barrel 100, completing the pressure relief. Thus, in the small discharge mode, all the colorant discharged comes from the small pump conduit 14 and the small discharge channel 25. Due to the smaller diameters of the small pump conduit 14 and the small discharge channel 25, the accuracy of the discharge is improved during this mode. Specifically, the large piston part 41 and the small piston part 42 are both piston rods. The large piston part 41 is adapted to the large pump pipeline 13, and the small piston part 42 is adapted to the small pump pipeline 14. The linkage part 43 is a linkage block, which is connected to the driving mechanism. The driving mechanism drives the linkage block to perform lifting movements, thereby synchronously driving the large piston part 41 and the small piston part 42 to lift and lower. The outer diameter of the large piston part 41 is larger than the outer diameter of the small piston part 42.

[0046] Reference Figure 9 , Figure 9Schematic diagram of the structure of the pipeline in the embodiment. Preferably, the valve core pipeline 11 includes a valve core pipeline body 112 and a bottom cover 113. The inner wall ring at the bottom of the valve core pipeline body 112 is provided with a first thread, and the outer ring of the bottom cover 113 is provided with a second thread. The bottom cover 113 is screwed to the valve core pipeline body 112 through the first thread and the second thread. The discharge port 111 is provided in the bottom cover 113. The feed pipeline 12 is connected to the valve core pipeline body 112. The valve core member 2 is rotatably provided in the valve core pipeline body 112. The valve core pipeline body 112 is respectively connected to the second port 232 and the fifth port 242. Due to the provision of the bottom cover 113, when the valve core member 2 inside the valve core pipeline body 112 is severely worn and needs to be replaced or the color paste in the valve core pipeline body 112 is solidified and needs to be cleaned, the bottom cover 113 can be removed from the valve core pipeline body 112, so that the valve core member 2 can be taken out from the valve core pipeline body 112 for subsequent replacement or cleaning. The specific setting of the first thread and the second thread, when the bottom cover 113 is screwed and installed on the bottom of the valve core pipe body 112, not only its sealing performance is good, but also the screwed installation method makes the bottom cover 113 in a relatively horizontal state. Compared with the traditional method of using multiple screws to fix the bottom cover 113, it avoids the situation where one side of the bottom cover 113 is higher than the other side due to the different depths of the screws tightened, improves the fit between the bottom cover 113 and the valve core part 2, and further improves the sealing.

[0047] Reference Figure 10-13 , Figure 10 This is a schematic diagram of the structure of the valve core and the sealing member when the feed port is opened in the embodiment. Figure 11 This is another structural diagram of the valve core and the sealing member when the feed port is opened in the embodiment. Figure 12 This is a schematic diagram of the structure of the sealing member when the feed port is opened in the embodiment. Figure 13This is a structural diagram of the sealing component when the feed port is closed in the embodiment. Preferably, a limiting conical surface 331 is provided on the end of the sealing block 33 facing the sealing surface 21. In the feeding state, the limiting conical surface 331 abuts against the opening of the sealing groove 211, so that part of the sealing block 33 extends into the sealing groove 211. In specific applications, the end of the sealing block 33 facing the feed pipe 12 is a conical surface that is adapted to the pipe opening of the sealing pipe 31, which is used to fit the pipe opening of the sealing pipe 31 and close the feed port 311. Along the direction from the feed pipe 12 to the valve core pipe 11, the diameter of the cross section of the limiting conical surface 331 gradually decreases, and the end face of the sealing block 33 facing the sealing surface 21 is also a plane to avoid being too sharp and causing breakage when abutting against the sealing surface 21. It is understood that the diameter of the cross section of part of the limiting conical surface 331 is smaller than the opening of the sealing groove 211, while the diameter of the cross section of part of the limiting conical surface 331 is larger than the opening of the sealing groove 211, so that when the sealing block 33 extends into the sealing groove 211, only part of the sealing block 33 extends into the sealing groove 211, and part of the sealing block 33 is located outside the sealing groove 211. The opening of the sealing groove 211 has a certain length. When the sealing block 33 extends into the sealing groove 211, it does not completely close the entire opening of the sealing groove 211, that is, it does not close the first port 231 and the sixth port 243. At this time, the sealing block 33 is away from the feed port 311, so that the discharge port 311 is open, and the discharge port 311 is in a state of communication with the first port 231 and the sixth port 243. Specifically, the first elastic portion 32 is a spring, one end of which is connected to the inner wall of the feed pipe 12, and the other end passes through the feed port 311 and is connected to the sealing block 33.

[0048] Re-reference Figure 5 Preferably, a sliding slope 2111 is provided at the edge of the opening of the sealing groove 211. In the feeding state, the limiting cone 331 fits against the sliding slope 2111. When switching from the feeding state to the discharging state, the valve core member 2 is rotated, and the limiting cone 331 and the sliding slope 2111 slide relative to each other. By setting the sliding slope 2111, when the rotating valve core member 2 is switched from the feeding state to the discharging state, the sealing block 33 is prevented from making hard contact with the valve core member 2, so that the process of the sealing block 33 sliding out of the sealing groove 211 to abutting against the sealing surface 21 is smoother, thereby avoiding jamming or damage to the sealing block 33.

[0049] Re-reference Figure 1-Figure 4Preferably, the sealing member 3 further includes a second elastic portion 34, one end of the second elastic portion 34 is connected to the feed pipe 12, and the other end of the second elastic portion 34 is connected to the sealing pipe 31. In specific applications, the outer wall of the sealing pipe 31 fits with the inner wall of the feed pipe 12, and a sealing rubber ring is provided between the outer wall of the sealing pipe 31 and the inner wall of the feed pipe 12 to strengthen the sealing between the two. By providing the second elastic portion 34, the elastic force of the second elastic portion 34 pushes the sealing pipe 31 toward the direction close to the sealing block 33. When the sealing block 33 fits with the sealing pipe 31, the fitting force between the sealing block 33 and the sealing pipe 31 can be further enhanced, thereby enhancing the sealing effect of the sealing block 33 on the feed port 311 and improving the sealing performance. Furthermore, a blocking block 121 is provided at the pipe port of the feed pipe 12, and the blocking block 121 prevents the sealing pipe 31 from extending out of the feed pipe 12. The blocking block 121 can prevent the sealing pipe 31 from extending out of the feed pipe 12 under the elastic force of the second elastic portion 34, thereby improving stability. Specifically, the second elastic portion 34 is a spring.

[0050] Reference Figure 14 and Figure 16 , Figure 14 This is a schematic diagram of the high-sealing reversing ball valve when the feed port is open in the embodiment. Figure 16This is a cross-sectional view of the valve core member in the feeding state of the embodiment. The high-sealing reversing ball valve in this embodiment has three operating states: feeding state, large discharge state, and small discharge state. The three operating states are switched by rotating the valve core member 2 by turning the handle 5. In the feeding state, a portion of the sealing block 33 extends into the sealing groove 211, and the sealing block 33 moves away from the sealing pipe 31, opening the feed port 311. At this time, the first port 231 and the sixth port 243 are all connected to the feed port 311, the second port 232, the fifth port 242, and the eighth port 272 are all connected to the second cavity 114, the third port 233 is connected to the small pump pipe 14, and the second cavity 114 is connected to the large pump pipe 13. The discharge port 111 is staggered from all ports on the conversion surface 22. At this time, the linkage member 43 rises, driving the large piston portion 41 and the small piston portion 42 to rise synchronously to suction and feed. The color paste feed path into the large pump pipeline 13 is two: one of which follows: the barrel 100, feed pipeline 12, sealing pipeline 31, feed port 311, sealing groove 211, sixth port 243, discharge channel 24, fourth port 241, second cavity 114, and the large pump pipeline 13. The second path follows: the barrel 100, feed pipeline 12, sealing pipeline 31, feed port 311, sealing groove 211, first port 231, feed channel 23, second port 232, second cavity 114, and the large pump pipeline 13. The color paste feed path into the small pump pipeline 14 follows: the barrel 100, feed pipeline 12, sealing pipeline 31, feed port 311, sealing groove 211, first port 231, feed channel 23, third port 233, and the small pump pipeline 14. The feeding process is complete once the linkage 43 rises to a preset height.

[0051] Reference Figure 15 and Figure 17 , Figure 15 This is a schematic diagram of the high-sealing reversing ball valve when the feed port is closed in the embodiment. Figure 17This is a cross-sectional view of the valve core component in the embodiment in the large discharge state. In this state, the sealing block 33 abuts the sealing surface 21, the sealing block 33 abuts the sealing pipe 31, and closes the feed port 311. The fourth port 241 is connected to the discharge port 111, the small pump pipe 14 is connected to the seventh port 271, and the second port 232, the fifth port 242, and the eighth port 272 are all connected to the second cavity 114. At this time, the linkage member 43 descends, driving the large piston portion 41 and the small piston portion 42 to descend synchronously to press the material. The material pressing path of the color paste in the large pump pipe 13 is: large pump pipe 13, second cavity 114, fifth port 242, discharge channel 24, fourth port 241, discharge port 111, and then discharge. The colorant in the small pump conduit 14 is discharged through the following path: small pump conduit 14, seventh port 271, pressure channel 27, eighth port 272, second cavity 114, fifth port 242, discharge channel 24, fourth port 241, and discharge port 111. It will be appreciated that during large-scale discharging, the colorant in both the large pump conduit 13 and the small pump conduit 14 participates in the discharging, but both are discharged through the discharge channel 24.

[0052] refer to Figure 14 and Figure 18 , Figure 18 This is a cross-sectional view of the valve core assembly in the embodiment in the small discharge state. In this state, the sealing block 33 partially extends into the sealing groove 211, and the sealing block 33 moves away from the sealing pipe 31, opening the feed port 311. At this point, the first port 231 and the sixth port 243 are both connected to the feed port 311, the second port 232, the fifth port 242, and the eighth port 272 are all connected to the second cavity 114, and the two ends of the small discharge channel 25 are connected to the small pump pipe 14 and the discharge port 111, respectively. The linkage 43 descends, driving the large piston 41 and the small piston 42 to descend synchronously, compressing the material. The colorant in the small pump pipe 14 compresses along a path that passes through the small pump pipe 14, the small discharge channel 25, and the discharge port 111, where it is discharged. The color paste in the large pump pipe 13 then flows through the large pump pipe 13, the second cavity 114, the fifth port 242, the discharge channel 24, the sixth port 243, the sealing groove 211, the feed port 311, and the sealing pipe 31, before returning to the barrel 100 for pressure relief. It is understood that in the low-volume discharge mode, only the small pump pipe 14 and the small discharge channel 25 perform low-volume discharge, while the color paste in the large pump pipe 13 flows back into the barrel 100. The radius of the small discharge channel 25 is much smaller than that of the discharge channel 24, thus achieving precise low-volume discharge and improving discharge accuracy.

[0053] Example 2:

[0054] The color mixing machine in this embodiment includes a rotating disk and multiple high-sealability reversing ball valves as described in Example 1. These high-sealability reversing ball valves are annularly mounted on the rotating disk, with each valve responsible for discharging a different color paste. The method and structure for switching between different high-sealability reversing ball valves for discharging are conventional and will not be further described here. Specifically, the valve core conduit 11 also includes at least two fixed blocks 115, located at opposite ends of the bottom of the valve core conduit body 112. Each fixed block 115 has a threaded hole. In specific applications, the barrel 100 of the high-sealing reversing ball valve in this embodiment is fixed on a rotating disk. A through hole is opened on the rotating disk at the position corresponding to the valve core pipe 11. The bottom of the valve core pipe body 112 is passed through the through hole and is fixed to the rotating disk after being screwed to the threaded hole on the fixing block 115, thereby fixing the valve core pipe 11 to the rotating disk. In this way, when the rotating handle 5 is rotated, the position of the valve core pipe body 112 will not shake, ensuring that the color paste can be discharged stably.

[0055] In summary, since the first port 213 of the feed channel 23 is located at the bottom of the sealing groove 211, in the feeding state, the first elastic portion 32 pushes the sealing block 33 partially into the sealing groove 211, causing the sealing block 33 to move away from the feed port 311, thereby opening the feed port 311 and communicating with the first port 231. The color paste in the feed pipe 12 can enter the valve core pipe 11 through the feed channel 23. In the discharging state, the sealing block 33 abuts the sealing surface 21, compresses the first elastic portion 32, and fits and seals the feed port 311, thereby closing the feed port 311. The color paste in the valve core pipe 11 can be discharged from the discharge port 111 through the discharge channel 24. Since the feed port 311 is completely closed, the color paste cannot flow back into the feed pipe 12 through the feed port 311 during discharging. This improves the sealing performance of the feed pipe 12 in the discharging state and improves the accuracy of discharging. At the same time, the present application can also realize two discharging modes: large discharging and small discharging. During small discharging, only the small pump pipeline 14 cooperates with the small discharging channel 25 to perform small discharging, and the color paste in the large pump pipeline 13 flows back into the barrel 100. The channel radius of the small discharging channel 25 is much smaller than the channel radius of the discharging channel 24, so that small flow rate and precise discharging can be achieved, thereby improving the accuracy of discharging.

[0056] The above is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included within the scope of the claims of the present application.

Claims

1. A high sealing reversing ball valve, characterized in that: include: A pipeline component (1) comprises a valve core pipeline (11) and a feed pipeline (12), wherein the valve core pipeline (11) is connected to the feed pipeline (12), and a discharge port (111) is provided at the bottom of the valve core pipeline (11); A valve core member (2) is rotatably disposed in the valve core pipe (11), the valve core member (2) having a sealing surface (21) and a conversion surface (22), and the sealing surface (21) of the valve core member (2) faces the feed pipe (12), the sealing surface (21) is provided with a sealing groove (211), a feed channel (23) and a discharge channel (24) are provided in the valve core member (2), the feed channel (23) having a first port (231) and a second port (232), The first port (231) is opened at the bottom of the sealing groove (211), the second port (232) is communicated with the valve core pipeline (11), the discharge channel (24) has a fourth port (241) and a fifth port (242), the fourth port (241) is opened at the conversion surface (22) of the valve core member (2), the conversion surface (22) is in contact with the discharge port (111), and the fifth port (242) is communicated with the valve core pipeline (11); and A sealing member (3), comprising a sealing pipe (31), a first elastic portion (32) and a sealing block (33); the sealing pipe (31) is provided in the feed pipe (12); a feed port (311) is provided on the end surface of the sealing pipe (31); the first elastic portion (32) is provided in the sealing pipe (31), and one end of the first elastic portion (32) is connected to the feed pipe (12); the other end of the first elastic portion (32) extends toward the outside of the sealing pipe (31) after passing through the feed port (311); the sealing block (33) is connected to the other end of the first elastic portion (32) and is opposite to the feed port (311); After the valve core (2) is rotated, it has a feeding state and a discharging state, wherein in the feeding state, part of the sealing block (33) extends into the sealing groove (211), and the sealing block (33) is away from the feeding port (311), so that the feeding port (311) is communicated with the first port (231); in the discharging state, the sealing block (33) abuts against the sealing surface (21), so that the sealing block (33) is closed at the feeding port (311), and the fourth port (241) is communicated with the discharging port (111).

2. The high sealing reversing ball valve according to claim 1, characterized in that: A limiting conical surface (331) is provided at one end of the sealing block (33) facing the sealing surface (21); in the feeding state, the limiting conical surface (331) abuts against the opening of the sealing groove (211), so that a portion of the sealing block (33) extends into the sealing groove (211).

3. The high sealing reversing ball valve according to claim 2, characterized in that: A sliding slope (2111) is provided at the edge of the opening of the sealing groove (211); in the feeding state, the limiting conical surface (331) is in contact with the sliding slope (2111); when switching from the feeding state to the discharging state, the valve core member (2) is rotated, and the limiting conical surface (331) and the sliding slope (2111) slide relative to each other.

4. The high-sealing reversing ball valve according to claim 1, characterized in that: The sealing member (3) further comprises a second elastic portion (34), one end of the second elastic portion (34) is connected to the feed pipe (12), and the other end of the second elastic portion (34) is connected to the sealing pipe (31).

5. The high sealing reversing ball valve according to claim 4, characterized in that: A blocking block (121) is provided at the pipe opening of the feed pipe (12), and the blocking block (121) blocks the sealing pipe (31) from extending out of the feed pipe (12).

6. The high sealing reversing ball valve according to claim 1, characterized in that: The valve core member (2) is further provided with a small discharge channel (25) and a pressing channel (27), the two ports of the small discharge channel (25) being respectively provided on opposite sides of the conversion surface (22), the pressing channel (27) having a seventh port (271) and an eighth port (272), the seventh port (271) being provided on the conversion surface (22), the eighth port (272) being communicated with the valve core pipeline (11), the discharge channel (24) further having a sixth port (243), the sixth port (243) being provided at the bottom of the sealing groove (211) and adjacent to the first port (231); The valve core component (1) further comprises a large pump pipeline (13) and a small pump pipeline (14) arranged side by side with the large pump pipeline (13), wherein the large pump pipeline (13) is communicated with the valve core pipeline (11), and the small pump pipeline (14) is connected with the valve core pipeline (11) and abuts against the conversion surface (22); after the valve core component (2) is rotated, it also has a small discharge state, and the two ends of the small discharge channel (25) are respectively communicated with the small pump pipeline (14) and the discharge port (111), and part of the sealing block (33) extends into the sealing groove (211), and the sixth port (243) is communicated with the feed port (311).

7. The high-sealing reversing ball valve according to claim 6, characterized in that: The feed channel (23) further has a third port (233), and the third port (233) is opened on the conversion surface (22); in the feed state, the third port (233) is communicated with the small pump pipeline (14).

8. The high-sealing reversing ball valve according to claim 6, characterized in that: It also includes a piston member (4), which includes a large piston part (41), a small piston part (42) and a linkage part (43). One end of the large piston part (41) is movably arranged in the large pump pipeline (13), and the other end of the large piston part (41) extends toward the outside after passing through the large pump pipeline (13). One end of the small piston part (42) is movably arranged in the small pump pipeline (14), and the other end of the small piston part (42) extends toward the outside after passing through the small pump pipeline (14). The linkage part (43) connects the other end of the large piston part (41) and the other end of the small piston part (42) respectively.

9. The high-sealing reversing ball valve according to claim 1, characterized in that: The valve core pipeline (11) includes a valve core pipeline body (112) and a bottom cover (113), the bottom inner wall ring of the valve core pipeline body (112) is provided with a first thread, the outer ring of the bottom cover (113) is provided with a second thread, the bottom cover (113) is screwed to the valve core pipeline body (112) through the first thread and the second thread, the discharge port (111) is opened in the bottom cover (113), the feed pipeline (12) is connected to the valve core pipeline body (112), the valve core member (2) is rotatably arranged in the valve core pipeline body (112), and the valve core pipeline body (112) is communicated with the second port (232) and the fifth port (242) respectively.

10. A color mixing machine, characterized in that: It comprises a high-sealing reversing ball valve as described in any one of claims 1-9.

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