CN210484686U - Reversing valve for color mixer - Google Patents
Reversing valve for color mixer Download PDFInfo
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- CN210484686U CN210484686U CN201921542271.4U CN201921542271U CN210484686U CN 210484686 U CN210484686 U CN 210484686U CN 201921542271 U CN201921542271 U CN 201921542271U CN 210484686 U CN210484686 U CN 210484686U
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- 230000008676 import Effects 0.000 claims abstract description 8
- 238000004401 flow injection analysis Methods 0.000 claims description 32
- 238000007599 discharging Methods 0.000 claims description 15
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000003086 colorant Substances 0.000 abstract description 2
- 238000002347 injection Methods 0.000 description 18
- 239000007924 injection Substances 0.000 description 18
- 238000005192 partition Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000002002 slurry Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a reversing valve for color mixer, including valve body and case, be equipped with feed inlet and discharge gate on the valve body, be equipped with the cylindric cavity that runs through the valve body left and right sides on the valve body, be equipped with the lateral wall feed inlet on the lateral wall of the left end of cavity, the lateral wall feed inlet passes through the outside pipeline that lies in on the valve body outside the cavity communicates with the feed inlet, and the bottom of the left end of cavity is equipped with the discharge gate, the top of cavity is equipped with first import and export, the second import and export that are used for being connected with the mill base pump; the case is cylindricly and rotationally installs in the cavity, be equipped with the multiunit on the case respectively with the valve body on first import and export, the second import and export complex through-flow hole, can make this switching-over valve have three kinds of operating condition through rotating the case, satisfy the control needs when double pump or two delivery nozzle mixing of colors pump mill base are annotated out, this switching-over valve structure thinks ingeniously, can switch over between different intercommunication states reliably through rotatory case, simple structure, good reliability.
Description
Technical Field
The utility model relates to a switching-over valve technique, especially a switching-over valve for color mixer.
Background
The color mixer is a core component in the color mixing technology, and the injection amount of color paste is controlled by the color mixer so as to meet the color mixing requirement. The color mixer disclosed in the Chinese patent document with the application number of 200420045989.X comprises a base, a color paste mixing container, a tray, a metering pump, a reversing valve and a lifting platform, wherein the reversing valve and the lifting platform are connected with the color paste mixer through the metering pump; in the color mixer disclosed in the patent document, the metering pump has only one injection port, and the size of the injection port is unchanged, so that when the outlet flow of the metering pump (color mixing pump) is larger, even if a little deviation occurs in the stroke of the metering pump (color mixing pump), the large deviation can also occur in the color paste injection amount; when the outlet flow of the metering pump (toning pump) is small, the accurate adjustment of the color paste injection amount can be realized, but the color paste injection amount in unit time is small, and the working efficiency is low.
In order to meet the requirement that a large amount of color paste can be injected and the injection amount of the color paste can be accurately controlled, some manufacturers simultaneously set two color mixing machines, one color mixing machine uses a color mixing pump with larger outlet flow to meet the requirement of quick injection, the other color mixing machine uses a color mixing pump with smaller outlet flow to adjust the injection amount of the color paste, and the reversing valve is required to control the injection ports of the two color mixing pumps in the scheme. The patent document US2009236367A1 discloses a piston pump with double nozzles, wherein a large piston, a small piston and a spring are arranged on a piston rod in a pump shell, so that a large amount of slurry can be discharged and a small amount of slurry can be discharged, a large amount of color slurry is discharged when the large piston and the small piston move downwards together, after the pistons touch the bottom, the piston rod overcomes the elasticity of the spring and continuously presses the small piston downwards through a thin rod to enter a small piston cavity, so that the small amount of color slurry is discharged to realize high-precision control and adjustment of the discharge amount, and the scheme also needs a reversing valve to control the two nozzles. The existing reversing valve has complex structure and poor reliability, and can not meet the control requirement when color paste is injected out by a double-nozzle color mixing pump.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a switching-over valve for color mixer for satisfy the control needs when two pumps or two nozzles mixing of colors pump mill base are annotated out.
In order to solve the problems, the utility model provides a reversing valve for a color mixer, which comprises a valve body and a valve core, wherein the valve body is provided with a feed inlet and a discharge outlet, the valve body is provided with a cylindrical cavity which runs through the left side and the right side of the valve body, the feed inlet is positioned at the right end of the cavity and can be used for being connected with a color paste feed barrel, the side wall of the left end of the cavity is provided with a side wall feed inlet, the side wall feed inlet is communicated with the feed inlet through an external pipeline positioned outside the cavity on the valve body, the bottom of the left end of the cavity is provided with the discharge outlet, and the top of the cavity is provided with a first inlet and a second inlet which;
the valve core is cylindrical and can be rotatably installed in the cavity, the right end of the valve core is closed, the cavity is divided into a left part and a right part which are mutually isolated by the right end of the valve core, the cavity is arranged in the valve core, a first backflow port corresponding to the first inlet and the first outlet and a second backflow port corresponding to the second inlet and the second outlet are arranged on the side wall of the right end of the valve core, a valve core feeding port corresponding to the side wall feeding port is arranged on the side wall of the left end of the valve core, and the valve core feeding port is communicated with the side wall feeding port when the first backflow port and the second backflow port on the valve core are respectively communicated with the first inlet and the second outlet on the valve body;
a first large-flow injection outlet and a second large-flow injection outlet which are staggered with the first return port and the second return port and respectively correspond to the first inlet and the second outlet are also arranged on the side wall of the right end of the valve core, a first valve core discharge port corresponding to the discharge port is also arranged on the side wall of the left end of the valve core, and the valve core is rotated to ensure that the first large-flow injection outlet and the second large-flow injection outlet are respectively communicated with the first inlet and the second outlet on the valve body, and the first valve core discharge port is communicated with the discharge port;
the side wall of the right end of the valve core is further provided with a small-flow injection port which is staggered with the first backflow port and the first large-flow injection port and corresponds to the first inlet and the first outlet, the side wall of the right end of the valve core is further provided with a low-resistance backflow port which is staggered with the second backflow port and the second large-flow injection port and is used for communicating the second inlet and the second outlet and the feed inlet, the side wall of the left end of the valve core is further provided with a second valve core discharge port which corresponds to the discharge port, and when the valve core is rotated to enable the small-flow injection port to be communicated with the first inlet and the first outlet, the second inlet and the second outlet can be communicated with the feed inlet through the low-resistance backflow port and the second valve core discharge port can be.
The utility model provides a switching-over valve for color mixer still has following technical characteristic:
further, the right side of the cavity of valve body is equipped with the annular, the right-hand member of case be equipped with the annular cooperation is in order to cut apart the right baffle of cavity, the left cavity of right baffle with first import and export the second import and export the intercommunication, the cavity on baffle right side with the feed inlet intercommunication.
Further, a first connection line L1, in which the centers of the first and second return ports are on the outer cylindrical surface of the valve element, is parallel to the central axis L0 of the valve element, a second connection line L2, in which the centers of the first and second large flow injection ports are on the outer cylindrical surface of the valve element, is parallel to the central axis L0 of the valve element, and a third connection line L3, in which the centers of the small flow injection port and the low resistance return port are on the outer cylindrical surface of the valve element, is parallel to the central axis L0 of the valve element.
Further, a central angle corresponding to an outer cylindrical surface between the first connecting line and the second connecting line on the valve core is 90 degrees, a central angle corresponding to an outer cylindrical surface between the first connecting line and the third connecting line on the valve core is 90 degrees, a discharge port of the first valve core is located on the third connecting line, and a discharge port of the second valve core is located on the second connecting line.
Furthermore, the front side wall and the rear side wall of the left end of the cavity of the valve body are respectively provided with the side wall feeding holes, and the two side wall feeding holes are symmetrically arranged around the central axis of the cavity of the valve body; the valve core is characterized in that a first valve core feeding hole corresponding to the side wall feeding hole is further formed in the rear side wall of the left end of the valve core, a second valve core feeding hole corresponding to the side wall feeding hole is further formed in the front side wall of the left end of the valve core, the first valve core feeding hole and the first valve core discharging hole in the valve core are identical in position and size, and the second valve core feeding hole and the second valve core discharging hole in the valve core are identical in position and size.
Further, the aperture of the feeding hole of the first valve core is larger than that of the discharging hole of the second valve core.
Furthermore, the discharge port on the valve body is a reducing through hole, and the aperture of one end of the discharge port communicated with the cavity in the valve body is smaller than that of the other end of the discharge port.
Furthermore, the left end of the valve core is also provided with a detachable valve core plug and a valve core end cover, and the valve core plug is used for plugging the left end of the valve core.
Furthermore, the left end of the valve core is also provided with a deflector rod which radially penetrates through the valve core, the valve core plug and the valve core end cover, and the deflector rod can drive the valve core to rotate in the cavity of the valve body.
The utility model discloses following beneficial effect has: the color paste pump is characterized in that a valve body with a feeding hole and a discharging hole is arranged, and a first inlet and a second inlet which are used for being connected with the color paste pump are arranged at the top of a cavity in the valve body; the valve core is rotatably arranged in the cavity of the valve body, a plurality of groups of circulation holes corresponding to the first inlet and the second outlet are formed in the valve core, the reversing valve can have three working states by rotating the valve core, the control requirement when color paste is injected out by the double-pump or double-nozzle color mixing pump is met, the reversing valve is ingenious in structure, the reversing valve can be reliably switched among different communication states by rotating the valve core, and the reversing valve is simple in structure and good in reliability.
Drawings
Fig. 1 is a schematic structural diagram of a reversing valve for a color mixer according to an embodiment of the present invention;
FIG. 2 is a front view of the reversing valve of FIG. 1;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a left side view of the reversing valve of FIG. 1;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;
fig. 6 is a schematic structural view of the reversing valve in the embodiment of the present invention when the valve element is in the large-flow pouring state;
FIG. 7 is a longitudinal cross-sectional view of the diverter valve of FIG. 6;
FIG. 8 is a cross-sectional view taken along line C-C of FIG. 7;
fig. 9 is a longitudinal sectional view of the reversing valve in the embodiment of the present invention when the spool is in the large-flow pouring-out state;
FIG. 10 is a cross-sectional view taken in the direction D-D of FIG. 9;
fig. 11 is a schematic structural diagram of a valve body in an embodiment of the present invention;
FIG. 12 is a cross-sectional view of the valve body of FIG. 11; (ii) a
FIG. 13 is a cross-sectional view taken in the direction E-E of FIG. 12;
FIG. 14 is a cross-sectional view taken in the direction F-F of FIG. 12;
FIG. 15 is a schematic view of the valve body of FIG. 11 from another perspective;
fig. 16 is a schematic structural diagram of a valve element in an embodiment of the present invention;
FIG. 17 is a structural schematic diagram of the valve cartridge of FIG. 16 from another perspective;
FIG. 18 is a structural schematic diagram of the valve cartridge of FIG. 17 from another perspective;
fig. 19 is a cross-sectional view of a valve cartridge in an embodiment of the invention;
fig. 20 is a sectional view taken in the direction of G-G in fig. 19.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
As shown in fig. 1 to 20, in an embodiment of the reversing valve for a color mixer of the present invention, the reversing valve for a color mixer includes a valve body 10 and a valve core 20, the valve body 10 is provided with a feeding port 101 and a discharging port 102, the valve body 10 is provided with a cylindrical cavity 103 penetrating through the left and right sides of the valve body 10, the right end of the feeding port 101 located in the cavity 103 can be used for being connected to a color paste feeding barrel, the sidewall of the left end of the cavity 103 is provided with a sidewall feeding port 13, the sidewall feeding port 13 is communicated with the feeding port 101 through an external pipe 104 located outside the cavity 103 on the valve body 10, the bottom of the left end of the cavity 103 is provided with the discharging port 102, the top of the cavity 103 is provided with a first inlet and a second outlet 11, 12 for being connected to a color;
the valve core 20 is cylindrical and rotatably installed in the cavity 103, the right end of the valve core 20 is sealed, the cavity 103 is divided into a left part and a right part by the right end of the valve core 20, the cavity 201 is arranged inside the valve core 20, a first backflow port 211 corresponding to the first inlet/outlet 11 and a second backflow port 212 corresponding to the second inlet/outlet 12 are arranged on the side wall of the right end of the valve core 20, a valve core feed port 24 corresponding to the side wall feed port 13 is arranged on the side wall of the left end of the valve core 20, the first backflow port 211 and the second backflow port 212 on the valve core 20 are respectively communicated with the first inlet/outlet 11 and the second inlet/outlet 12 on the valve body 10, when color paste in the color paste feed barrel is fed into the cavity 201 inside the valve core 20 through the feed port 101, the external pipeline 104, the side wall feed port 13 and the valve core feed port 24, and then is fed into the cavity 201 inside the, The first inlet and outlet 11 enters the color paste pump under the suction action of the color paste pump, and enters the color paste pump under the suction action of the color paste pump through the second return port 212 and the second inlet and outlet 12, so that color paste can be supplied to two color paste pumps or two color paste injection ports of the double-outlet color paste pump at the same time, and the reversing valve is in a strong backflow state when the valve core is positioned at the position, namely, the color paste in the color paste feeding barrel can rapidly enter the color paste pump through the first inlet and outlet and the second inlet and outlet on the valve body under the suction action of the color paste pump; at the moment, the piston pump can be repeatedly pulled and brushed to wash the valve body and all channels in the pump body to prevent the channels in the valve body from blocking a valve core channel of the valve body due to drying or precipitation of color paste;
the side wall of the right end of the valve core 20 is also provided with a first large-flow injection outlet 221 and a second large-flow injection outlet 222 which are staggered with the first return port 211 and the second return port 212 and respectively correspond to the first inlet and the second outlet 11 and 12, the side wall of the left end of the valve core 20 is also provided with a first valve core discharge port 251 corresponding to the discharge port 102, and the valve core 20 is rotated to ensure that the first large-flow injection outlet 221 and the second large-flow injection outlet 222 are respectively communicated with the first inlet and the second outlet 11 and 12 on the valve body 10, when the valve core 20 is rotated to ensure that the first valve core discharge port 251 is communicated with the discharge port 102, it can be understood that the valve core feed port 24 on the valve core 20 is staggered with the side wall feed port 13 on the valve body when the valve core 20 is positioned at the; at this time, two injection outlets of the two color paste pumps or the two-nozzle color paste pump respectively connected with the first inlet/outlet 11 and the second inlet/outlet 12 can simultaneously inject color paste into the cavity 201 of the valve core 20, the color paste in the cavity 201 is injected outwards through the first valve core discharge port 251 and the discharge port 102, the reversing valve is in a large-flow injection state when the valve core is located at the position, namely the two color paste pumps or the two injection outlets of the two-nozzle color paste pump communicated with the first inlet/outlet and the second inlet/outlet on the valve body simultaneously pump the color paste to the reversing valve, and the color paste is rapidly pumped to the color mixing equipment at a large flow rate through the reversing valve;
the side wall of the right end of the valve core 20 is also provided with a small-flow injection outlet 231 which is staggered with the first return port 211 and the first large-flow injection outlet 221 and corresponds to the first inlet/outlet 11, the side wall of the right end of the valve core 20 is also provided with a low-resistance return port 232 which is staggered with the second return port 212 and the second large-flow injection outlet 222 and is used for communicating the second inlet/outlet 12 and the feed inlet 101, the side wall of the left end of the valve core 20 is also provided with a second valve core discharge port 252 which corresponds to the discharge port 103, when the valve core 20 is rotated to enable the small-flow injection outlet 231 to be communicated with the first inlet/outlet 11, the second inlet/outlet 12 can be communicated with the feed inlet 101 through the low-resistance return port 232; it can be understood that when the valve core 20 is located at this position, the valve core feed port 24 on the valve core 20 is staggered with the side wall feed port 13 on the valve body, i.e. the cavity 201 in the valve core 20 is separated from the feed port 101 on the valve body 10; at this time, the color paste pump connected to the first inlet/outlet 11 or one of the outlets of the dual-outlet color paste pump can pump the color paste into the cavity 201 of the valve core 20 through the first inlet/outlet 11 and the small flow outlet 231; the color paste pump or one injection outlet of the double-outlet color paste pump connected with the second inlet and outlet 12 can pump the color paste back to the color paste feeding barrel through the second inlet and outlet 12, the low-resistance backflow port 232 and the feeding port 101 in a low-resistance manner, when the valve core is positioned at the position, only the color paste pump or one injection outlet of the double-outlet color paste pump connected with the first inlet and outlet 11 can pump the color paste to the color mixing device through the reversing valve, so that the small-flow injection of the color paste can be realized, and the reversing valve is in a small-flow injection state.
In the reversing valve for the color mixer in the embodiment of the application, the valve body with the feeding hole and the discharging hole is arranged, and the top of the cavity in the valve body is provided with the first inlet and the second inlet which are used for being connected with the color paste pump; the valve core is rotatably arranged in the cavity of the valve body, a plurality of groups of circulation holes corresponding to the first inlet and the second outlet are formed in the valve core, the reversing valve can have three working states by rotating the valve core, the control requirement when color paste is injected out by the double-pump or double-nozzle color mixing pump is met, the reversing valve is ingenious in structure, the reversing valve can be reliably switched among different communication states by rotating the valve core, and the reversing valve is simple in structure and good in reliability.
In an embodiment of the present application, preferably, an annular groove is formed on the right side of the cavity 103 of the valve body 10, a right partition plate 202 which is matched with the annular groove to divide the cavity 103 is arranged at the right end of the valve core 20, the cavity 103 of the valve body 10 on the left side of the right partition plate 202 is communicated with the first inlet and outlet 11 and the second inlet and outlet 12, and the cavity 103 of the valve body 10 on the right side of the right partition plate 202 is communicated with the feed inlet 101; therefore, the cavity 103 of the valve body 10 is reliably divided into two parts which are not communicated with each other on the left and right by the right partition plate 202 on the valve core 20, and the second inlet/outlet 12 on the left side of the right partition plate 202 can be communicated with the inlet port 101 on the right side of the right partition plate 202 only through the low-resistance return port 232 on the valve core 20. Preferably, the diameter of the right diaphragm 202 is larger than the diameter of the main body of the valve core 20, so that the left end of the valve core 20 can be inserted into the cavity 103 through the right opening of the cavity 103, and the right diaphragm 202 abuts on the groove on the right side of the cavity 103 to divide the cavity 103 into left and right parts.
In one embodiment of the present application, it is preferable that a first connection L1, where the center of the first return port 211 and the center of the second return port 212 are on the outer cylindrical surface of the valve spool 20, be parallel to the central axis L0 of the valve spool 20, a second connection L2, where the center of the first large flow rate injection port 221 and the center of the second large flow rate injection port 222 are on the outer cylindrical surface of the valve spool 20, be parallel to the central axis L0 of the valve spool 20, and a third connection L3, where the center of the small flow rate injection port 231 and the center of the low resistance return port 232 are on the outer cylindrical surface of the valve spool 20, be parallel to the central axis L0 of the valve spool 20. Preferably, a central angle of the valve core 20 corresponding to an outer cylindrical surface between the first line L1 and the second line L2 is 90 °, a central angle of the valve core 20 corresponding to an outer cylindrical surface between the first line L1 and the third line L3 is 90 °, the first valve core outlet 251 is located on the third line L3, and the second valve core outlet 252 is located on the second line L2. It is understood that the arrangement order of the first, second and third lines L1, L2 and L3 on the outer cylindrical surface of the valve core 20 and the size of the central angle corresponding to the outer cylindrical surface between the first, second and third lines L1, L2 and L3 can be set as required. In the above embodiment of the application, the second connection line L2, the first connection line L1, and the third connection line L3 are sequentially arranged on the outer cylindrical surface of the valve core, and the central angle corresponding to the outer cylindrical surface between the first connection line L1 and the second connection line L2 and the central angle corresponding to the outer cylindrical surface between the first connection line L1 and the third connection line L3 are both 90 °, and this kind of design can simplify the structures of the through holes on the valve body and the valve core, so that the structure of the reversing valve is better and simpler, and the control is better and more convenient. Specifically, in the above example, the front side wall 105 and the rear side wall 106 at the left end of the cavity 103 of the valve body 10 are respectively provided with the side wall feed inlets 13, and the two side wall feed inlets 13 are symmetrically arranged about the central axis of the cavity 103 of the valve body 10; two valve core feed ports 24 are arranged on the side wall of the left end of the valve core 20, specifically, a first valve core feed port 241 corresponding to the side wall feed port 13 is further arranged on the rear side wall of the left end of the valve core 20, a second valve core feed port 242 corresponding to the side wall feed port 13 is further arranged on the front side wall of the left end of the valve core 20, the first valve core feed port 241 on the valve core 20 and the first valve core discharge port 251 are identical in position and size, and the second valve core feed port 242 on the valve core 20 and the second valve core discharge port 252 are identical in position and size; the second connection line L2, the first connection line L1, and the third connection line L3 are sequentially disposed on the outer cylindrical surface of the valve element, and the central angle corresponding to the outer cylindrical surface between the first connection line L1 and the second connection line L2 and the central angle corresponding to the outer cylindrical surface between the first connection line L1 and the third connection line L3 are both 90 °, in this case, when the front sidewall 105 and the rear sidewall 106 of the left end of the cavity 103 of the valve body 10 are respectively provided with the sidewall feed ports 13, the first valve element feed port 241 and the first valve element discharge port 251 on the valve element 20 can be simplified into the same inlet and outlet through which the liquid can flow in two directions, and the second valve element feed port 242 and the second valve element discharge port 252 on the valve element 20 can be simplified into the same inlet and outlet through which the liquid can flow in two directions, so that the reversing valve has a simple structure and convenient control.
In the above-described embodiment of the present application, it is preferable that the aperture of the first spool feed port 241 is larger than the aperture of the second spool discharge port 241; as can be seen from the above example, the first valve core feed port 241 and the first valve core discharge port 251 are the same inlet/outlet, and the second valve core feed port 242 and the second valve core discharge port 252 are the same inlet/outlet, that is, the aperture of the first valve core discharge port 251 is larger than that of the second valve core discharge port 252; in this case, when the spool 20 is in the strong backflow state, the first spool feed port 241 and the second spool feed port 241 are simultaneously communicated with the two sidewall feed ports 13 on the valve body 10; when the valve core 20 is in a large-flow discharging state, the first valve core discharging hole 251 with a larger aperture is communicated with the discharging hole 102 on the valve body 10, so that color paste can be pumped to the outside of the reversing valve in a low-resistance, large-flow and low-direction manner; when the valve core 20 is in a small-flow pouring state, the second valve core discharge hole 252 with a smaller aperture is communicated with the discharge hole 102 on the valve body 10, so that color paste can be pumped to the outside of the reversing valve with large resistance, small flow and low flow; therefore, the pumping requirements of different flow rates in the color paste pumping process when the valve core is in different states can be met.
In one embodiment of the present application, preferably, as shown in fig. 12, the discharge hole 102 on the valve body 10 is a reducing through hole, the aperture of one end of the discharge hole 102, which is communicated with the cavity 103 in the valve body 10, is smaller than the aperture of the other end of the discharge hole 102, which is located on the outer surface of the valve body 10, and preferably, the longitudinal section of the discharge hole 102 is arc-shaped.
In an embodiment of the present application, preferably, the left end of the valve core 20 is further provided with a detachable valve core plug 30 and a valve core end cover 40, the valve core plug 30 is used for plugging the left end of the valve core 20, and the valve core end cover, the valve core plug and the valve core are designed as separate structures, which can facilitate the manufacture of the individual components and the assembly of the reversing valve.
Preferably, the left end of the valve core 20 is further provided with a shift lever 50 radially penetrating through the valve core 20, the valve core plug 30 and the valve core end cover 40, the shift lever 50 can drive the valve core 20 to rotate in the cavity of the valve body 10, in a production application, the shift lever 40 can be controlled by control elements such as a stepping motor and the like to complete automatic control of the rotation of the valve core, and a design and control of a driving device for the rotation of the valve core can be designed as required by those skilled in the art, which is not described herein again.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
1. A reversing valve for a color mixer comprises a valve body and a valve core, wherein the valve body is provided with a feeding hole and a discharging hole, and is characterized in that the valve body is provided with a cylindrical cavity penetrating through the left side and the right side of the valve body, the feeding hole is positioned at the right end of the cavity and can be used for being connected with a color paste feeding barrel, the side wall of the left end of the cavity is provided with a side wall feeding hole, the side wall feeding hole is communicated with the feeding hole through an external pipeline positioned outside the cavity on the valve body, the discharging hole is arranged at the bottom of the left end of the cavity, and the top of the cavity is provided with a first inlet and a second outlet which; the valve core is cylindrical and can be rotatably installed in the cavity, the right end of the valve core is closed, the cavity is divided into a left part and a right part which are mutually isolated by the right end of the valve core, the cavity is arranged in the valve core, a first backflow port corresponding to the first inlet and the first outlet and a second backflow port corresponding to the second inlet and the second outlet are arranged on the side wall of the right end of the valve core, a valve core feeding port corresponding to the side wall feeding port is arranged on the side wall of the left end of the valve core, and the valve core feeding port is communicated with the side wall feeding port when the first backflow port and the second backflow port on the valve core are respectively communicated with the first inlet and the second outlet on the valve body; a first large-flow injection outlet and a second large-flow injection outlet which are staggered with the first return port and the second return port and respectively correspond to the first inlet and the second outlet are also arranged on the side wall of the right end of the valve core, a first valve core discharge port corresponding to the discharge port is also arranged on the side wall of the left end of the valve core, and the valve core is rotated to ensure that the first large-flow injection outlet and the second large-flow injection outlet are respectively communicated with the first inlet and the second outlet on the valve body, and the first valve core discharge port is communicated with the discharge port; the side wall of the right end of the valve core is further provided with a small-flow injection port which is staggered with the first backflow port and the first large-flow injection port and corresponds to the first inlet and the first outlet, the side wall of the right end of the valve core is further provided with a low-resistance backflow port which is staggered with the second backflow port and the second large-flow injection port and is used for communicating the second inlet and the second outlet and the feed inlet, the side wall of the left end of the valve core is further provided with a second valve core discharge port which corresponds to the discharge port, and when the valve core is rotated to enable the small-flow injection port to be communicated with the first inlet and the first outlet, the second inlet and the second outlet can be communicated with the feed inlet through the low-resistance backflow port and the second valve core discharge port can be.
2. The reversing valve for a tinting machine as claimed in claim 1, wherein: the right side of the cavity of valve body is equipped with the annular, the right-hand member of case be equipped with the annular cooperation is in order to cut apart the right baffle of cavity, the left cavity of right baffle with first import and export the second import and export the intercommunication, the cavity on baffle right side with the feed inlet intercommunication.
3. The reversing valve for a tinting machine as claimed in claim 1, wherein: the center of the first return port and the center of the second return port are parallel to the central axis of the valve core through a first connecting line on the outer cylindrical surface of the valve core, the center of the first large-flow injection port and the center of the second large-flow injection port are parallel to the central axis of the valve core through a second connecting line on the outer cylindrical surface of the valve core, and the center of the small-flow injection port and the center of the low-resistance return port are parallel to the central axis of the valve core through a third connecting line on the outer cylindrical surface of the valve core.
4. The reversing valve for a tinting machine as claimed in claim 3 wherein: the central angle corresponding to the outer cylindrical surface between the first connecting line and the second connecting line on the valve core is 90 degrees, the central angle corresponding to the outer cylindrical surface between the first connecting line and the third connecting line on the valve core is 90 degrees, the discharge port of the first valve core is positioned on the third connecting line, and the discharge port of the second valve core is positioned on the second connecting line.
5. The reversing valve for a tinting machine as claimed in claim 4 wherein: the front side wall and the rear side wall of the left end of the cavity of the valve body are respectively provided with the side wall feeding holes, and the two side wall feeding holes are symmetrically arranged around the central axis of the cavity of the valve body; the valve core is characterized in that a first valve core feeding hole corresponding to the side wall feeding hole is further formed in the rear side wall of the left end of the valve core, a second valve core feeding hole corresponding to the side wall feeding hole is further formed in the front side wall of the left end of the valve core, the first valve core feeding hole and the first valve core discharging hole in the valve core are identical in position and size, and the second valve core feeding hole and the second valve core discharging hole in the valve core are identical in position and size.
6. The reversing valve for a tinting machine as claimed in claim 5, wherein: the aperture of the feeding hole of the first valve core is larger than that of the discharging hole of the second valve core.
7. The reversing valve for a tinting machine as claimed in claim 1, wherein: the discharge port on the valve body is a reducing through hole, and the aperture of one end of the discharge port communicated with the cavity in the valve body is smaller than that of the other end of the discharge port.
8. The reversing valve for a tinting machine as claimed in claim 1, wherein: the left end of the valve core is also provided with a detachable valve core plug and a valve core end cover, and the valve core plug is used for plugging the left end of the valve core.
9. The reversing valve for a tinting machine as claimed in claim 8, wherein: and the left end of the valve core is also provided with a deflector rod which radially penetrates through the valve core, the valve core plug and the valve core end cover, and the deflector rod can drive the valve core to rotate in the cavity of the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921542271.4U CN210484686U (en) | 2019-09-17 | 2019-09-17 | Reversing valve for color mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921542271.4U CN210484686U (en) | 2019-09-17 | 2019-09-17 | Reversing valve for color mixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210484686U true CN210484686U (en) | 2020-05-08 |
Family
ID=70540459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921542271.4U Expired - Fee Related CN210484686U (en) | 2019-09-17 | 2019-09-17 | Reversing valve for color mixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210484686U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187928A (en) * | 2021-04-30 | 2021-07-30 | 郑州三华科技实业有限公司 | Liquid reversing valve for color mixer and color mixer |
-
2019
- 2019-09-17 CN CN201921542271.4U patent/CN210484686U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187928A (en) * | 2021-04-30 | 2021-07-30 | 郑州三华科技实业有限公司 | Liquid reversing valve for color mixer and color mixer |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200508 |