WO2019120306A1 - Vanne de pompe composite - Google Patents

Vanne de pompe composite Download PDF

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Publication number
WO2019120306A1
WO2019120306A1 PCT/CN2018/122960 CN2018122960W WO2019120306A1 WO 2019120306 A1 WO2019120306 A1 WO 2019120306A1 CN 2018122960 W CN2018122960 W CN 2018122960W WO 2019120306 A1 WO2019120306 A1 WO 2019120306A1
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WO
WIPO (PCT)
Prior art keywords
passage
channel
radial
injection
spool
Prior art date
Application number
PCT/CN2018/122960
Other languages
English (en)
Chinese (zh)
Inventor
黄松
薛耀斌
李环
王保松
Original Assignee
郑州三华科技实业有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201711400586.0A external-priority patent/CN108194302B/zh
Priority claimed from CN201711400600.7A external-priority patent/CN108194304B/zh
Priority claimed from CN201711400500.4A external-priority patent/CN108194301B/zh
Priority claimed from CN201711400453.3A external-priority patent/CN108194297B/zh
Priority claimed from CN201711400588.XA external-priority patent/CN108194303B/zh
Priority claimed from CN201711400496.1A external-priority patent/CN108194300B/zh
Priority claimed from CN201711400484.9A external-priority patent/CN108194299B/zh
Application filed by 郑州三华科技实业有限公司 filed Critical 郑州三华科技实业有限公司
Publication of WO2019120306A1 publication Critical patent/WO2019120306A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B5/00—Machines or pumps with differential-surface pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks

Definitions

  • the invention belongs to the technical field of paint coloring, and particularly relates to a composite pump valve structure for controlling a conveying medium.
  • the above conveying medium may be a viscous liquid/fluid, including a color paste, an automobile refinish paint, an ink, a pigment, Basic paint and so on.
  • the pump valve structure that the company has already produced includes a large and small pump with a plunger type piston structure, a valve for controlling the size of the pump flow passage, a small pump cavity at the bottom end of the outlet of the large pump chamber, and a small protrusion below the large piston.
  • the piston, the small piston and the small pump cavity constitute a small pump, and the large pump and the small pump form a composite pump.
  • the valve for controlling the flow of the large and small pump includes such a flow-through structure at the initial position, and the color paste pumped by the composite pump passes through a large number of injection channels of the valve core and/or a small amount of the injection passage, and then collects into the color paste barrel, and then passes through The pump is pumped, and it is hoped that the color paste will be sucked back from the color paste barrel through a large number of injection channels and a small amount of injection channels to the composite pump.
  • This structure is due to a large number of injection channels and a small number of injection channels. Both are relatively thin, and the suction resistance of the paste is large when the suction step is performed.
  • the suction resistance is large, resulting in a longer suction time of the color paste, and it is easy to have a vacuum state in the composite pump, further increasing the suction. Difficulty.
  • the present invention utilizes the valve core in the composite pump of CN 201410792472.5 in the initial position, and increases the pressure to dredge a large amount when the pump performs the injection operation.
  • the injection channel and the small injection channel can reduce the backflow resistance of the composite pump when a large amount of colorant is reflowed.
  • the spool in the composite pump is in the initial position, and in the suction state, the vacuum in the composite pump can be replenished in time to avoid the vacuum pumping inside the composite pump for a long time.
  • the utility model relates to a composite pump valve, which comprises a pump of a size of a piston structure.
  • the pump of the size of the piston structure is a small pump cavity at the bottom end of the outlet of the large pump chamber, and the large piston end surface of the large pump chamber protrudes small.
  • the piston, the small piston and the small pump chamber constitute a small pump, the large pump and the small pump form a composite pump; and the control valve for controlling the circulation of the large and small pump, the control valve comprises a valve body and a valve core, and the valve body is provided with a valve for accommodating the rotary valve core
  • the core cavity, the valve core is placed in the valve core cavity;
  • the valve body is provided with a channel A, one end of the channel A is connected with the large pump, the valve body is provided with the channel B, one end of the channel B is connected with the small pump, and the other end of the channel A is
  • the valve core A is formed on the valve core cavity, and the other end of the channel B forms a valve core B port on the valve core cavity;
  • the valve body is provided with a color paste barrel channel communicating with the color filter barrel, and the color paste barrel channel is The inlet of the color paste barrel is formed on the valve core cavity;
  • the valve body is further provided with a color slurry injection outlet;
  • a short-circuit channel is provided on the spool to realize the following two paths: (1) such that the spool discharge passage is located at the initial position of the spool of the pump valve, and the viscous liquid passes before the small piston of the small piston pump is separated from the small pump chamber.
  • the short-circuit channel is connected to the color paste barrel, and the low-resistance suctions the viscous liquid to the composite pump; (2) in the return state, the valve core A of the channel A or the valve core B of the channel B is connected to the valve core, and the channel is thick. The liquid is returned to the paste bucket through the spool injection channel.
  • the returning state is realized when the spool is in the initial position: after the small piston enters the small pump chamber, a part of the viscous liquid passes through the passage A or the passage B, and flows back into the color paste barrel through the short-circuit passage with low resistance; the other part is thick The liquid passes through the remaining channel A or channel B, and the channel is injected through the valve core to reflux to the paste bucket.
  • the spool is provided with a return position, and the return state is realized at the return position: the spool is rotated to the return position, the composite pump is injected, and the viscous liquid is pumped out from the large pump chamber and/or the small pump chamber through the inside of the spool
  • the passage communicates with the valve core to discharge the passage, and the viscous liquid is returned to the paste tank through the spool injection passage.
  • the return state at the return position includes two types: i) in the reflow position, the short-circuit passage is in communication with the passage A or the passage B, then, when the small piston does not enter the small pump chamber, the large pump chamber and the small pump chamber The pumped viscous liquid enters the short-circuit path and the valve core injection channel respectively, and the low resistance flows back to the color paste barrel; when the small piston enters the small pump cavity, the channel A or channel B of the short-circuit channel is not connected, and the valve core is injected.
  • the outlet channel is connected, and the viscous liquid is returned to the color paste barrel with high resistance; ii), in the reflow position, the short circuit is not connected to the channel A or the channel B, that is, both the channel A and the channel B are connected to the valve core injection channel, then The viscous liquid pumped from the large pump chamber and the small pump chamber is injected through the valve core and returned to the color paste barrel with high resistance.
  • the inner passage of the spool is arranged in the spool, and the inlet and outlet of the paste bucket are branched into the left chamber passage and/or the right chamber passage on both sides of the spool chamber in the valve body, so that: (1) in the initial position of the spool, the color
  • the slurry tank passage communicates with the valve core through the left chamber passage and the right chamber passage
  • the spool injection passage communicates with the internal passage of the spool
  • the internal passage of the spool communicates with the passage A or the passage B
  • the paste bucket passage is connected through the short-circuit passage
  • the remaining channel A or channel B (2) in the reflow state, channel A or channel B communicates with the internal channel of the valve core, after the valve core is injected out of the channel, the left cavity channel and/or the right cavity channel are connected, and finally connected to the color paste. Barrel import and export.
  • the short circuit channel is an oblique channel, one end of the oblique channel is connected to the inlet and outlet of the color slurry barrel, and the other end is connected to the large pump cavity or the small pump cavity.
  • the short circuit channel is an inclined channel, one end of the inclined channel is connected to the inlet and outlet of the color slurry barrel, and the other end of the inclined channel is connected with the valve core B at the initial position of the valve core;
  • the inner channel of the valve core includes the axial center channel, the shaft a first radial passage, a second radial passage and a third radial passage are disposed on the heart passage;
  • the spool injection passage includes a first injection passage and a second injection passage, and the diameter of the first injection passage is smaller than the first The diameter of the two injection passages; wherein, when the pump valve is in the initial position, the axes of the spool A port, the spool B port, the first radial passage, the second radial passage, and the third radial passage are located in the same plane,
  • the first radial channel and the third radial channel are coaxially disposed, the first injection channel and the second injection channel are coaxially disposed, and the first radial channel is
  • the short circuit channel is an inclined channel, one end of the inclined channel is connected to the inlet and outlet of the color slurry barrel, and the other end of the inclined channel is connected with the valve core A at the initial position of the valve core;
  • the inner channel of the valve core includes the axial center channel and the shaft a first radial passage, a second radial passage and a third radial passage are disposed on the heart passage;
  • the spool injection passage includes a first injection passage and a second injection passage, and the diameter of the first injection passage is larger than the first The diameter of the two injection passages; wherein, when the pump valve is in the initial position, the axes of the spool A port, the spool B port, the first radial passage, the second radial passage, and the third radial passage are located in the same plane,
  • the first radial channel and the third radial channel are coaxially disposed, the first injection channel and the second injection channel are coaxially disposed, and the first radial channel is
  • the short circuit channel is an inclined channel, one end of the inclined channel is connected to the inlet and outlet of the color slurry barrel, and the other end of the inclined channel is connected with the valve core B at the initial position of the valve core;
  • the inner channel of the valve core includes the axial center channel, the shaft
  • the first radial channel, the second radial channel and the third radial channel are arranged on the heart channel;
  • the valve core injection channel is one; wherein, when the pump valve is in the initial position, the valve core A port, the valve core B port,
  • the axes of the first radial channel, the second radial channel, and the third radial channel are in the same plane, the first radial channel and the third radial channel are coaxially disposed, the first radial channel and the second radial direction
  • the channel is vertically disposed, the third radial channel is disposed in parallel with the injection channel, and the axis of the oblique channel, the second radial channel, and the in
  • the short circuit channel is an inclined channel, one end of the inclined channel is connected to the inlet and outlet of the color slurry barrel, and the other end of the inclined channel is connected with the valve core A at the initial position of the valve core;
  • the inner channel of the valve core includes the axial center channel and the shaft
  • the first radial channel, the second radial channel and the third radial channel are arranged on the heart channel;
  • the valve core injection channel is one; wherein, when the pump valve is in the initial position, the valve core A port, the valve core B port,
  • the axes of the first radial channel, the second radial channel, and the third radial channel are in the same plane, the first radial channel and the third radial channel are coaxially disposed, the first radial channel and the second radial direction
  • the channels are vertically disposed, and the axes of the inclined channel, the second radial channel, and the spool injection channel are in the same plane.
  • the short circuit channel is an inclined channel, one end of the inclined channel is connected to the inlet and outlet of the color slurry barrel, and the other end of the inclined channel is connected with the valve core A at the initial position of the valve core;
  • the inner channel of the valve core includes the axial center channel, the axial center
  • the passage 62 is provided with a first radial passage 63 and a second radial passage 64;
  • the spool injection passage is one; wherein, when the pump valve is in the initial position, the spool A port, the spool B port, and the first radial direction
  • the axis of the channel and the second radial channel are in the same plane, the first radial channel and the second radial channel are perpendicular, the spool injection channel and the first radial channel are vertically disposed, the oblique channel and the second radial channel It is in the same plane as the axis of the spool injection channel.
  • the valve body is provided with a valve core A port, a valve core B port and a return port, and the return port is in communication with the large pump cavity;
  • the short circuit channel is two oblique channels, one end of the first oblique channel and the second oblique channel Both are connected to the inlet and outlet of the color paste barrel, and the other end of the first inclined channel communicates with the valve core B at the initial position of the valve core, and the second inclined channel communicates with the return port in a small pump injection state;
  • the channel includes a shaft center passage, wherein the shaft center passage is provided with a first radial passage, a second radial passage, a third radial passage and a fourth radial passage;
  • the spool injection passage is two, first The injection channel and the second injection channel have a diameter larger than a diameter of the second injection channel; wherein, when the pump valve is in an initial position, the first radial channel, the second radial channel, and the s
  • the valve body is provided with a spool A port, a spool B port and a return port, and the return port communicates with the large pump cavity;
  • the short circuit channel includes a diagonal channel and a fifth radial channel, the oblique channel and the fifth One end of the radial passage is connected with the inlet and outlet of the paste tank, and the other end of the inclined passage is in communication with the inlet and outlet of the small pump at the initial position of the spool, and the fifth radial passage is connected to the return port in a small injection state of the small pump;
  • the internal passage of the spool includes a shaft center passage, and the axial passage is provided with a first radial passage, a second radial passage, a third radial passage and a fourth radial passage;
  • the spool injection passage is two a first injection channel and a second injection channel, the diameter of the first injection channel being larger than the diameter of the second injection channel; wherein, when the pump valve is in the initial position,
  • the first radial channel and the second radial channel are coaxially arranged, the third Vertically disposed to the channel and the fourth radial channel, the diameter of the third radial channel is larger than the diameter of the fourth radial channel, the first injection channel and the second injection channel are coaxially disposed, the first injection channel and the first A radial passage is arranged in parallel, and the fifth radial passage and the first radial passage are arranged in parallel.
  • the short circuit channel includes a slanting channel, one end of the slanting channel is connected with the inlet and outlet of the color slurry barrel, and the other end of the slanting channel is connected with the inlet and outlet of the small pump at the initial position of the valve core;
  • the inner channel of the valve core includes the axial center channel and the shaft a first radial channel, a second radial channel, a third radial channel, a fourth radial channel and a fifth radial channel are arranged on the cardiac channel;
  • the valve core injection channel comprises two, the first injection channel and a second injection passage, the diameter of the first injection passage is the same as the diameter of the second injection passage; wherein, when the pump valve is in the initial position, the first radial passage, the second radial passage, and the axis of the spool A In the same plane, the axes of the third radial channel, the fourth radial channel, the fifth radial channel and the valve core B are located in the same plane
  • the first radial passage and the second radial passage are coaxially disposed, the third radial passage and the fourth radial passage are vertically disposed, and the third radial passage and the fifth radial passage are coaxially disposed, the first injection Channel and second injection channel coaxial line setting, first note Channel and the first radial passage disposed in parallel.
  • the short circuit channel includes two oblique channels, a first oblique channel and a second oblique channel, the first oblique channel and the second oblique channel are both connected to the inlet and outlet of the color paste barrel, and the other end of the first inclined channel is at the initial position of the valve core
  • the valve is connected to the port B, and the second inclined channel communicates with the spool B in a small pump injection state;
  • the spool internal passage includes a shaft center passage, and the first radial passage is disposed on the shaft passage, a second radial channel, a third radial channel and a fourth radial channel;
  • the valve core injection channel comprises two, a first injection channel and a second injection channel, the diameter of the first injection channel is smaller than a diameter of the second injection passage; wherein, when the pump valve is in the initial position, the first radial passage and the axis of the spool B are in the same plane, the second radial passage, the third radial passage
  • valve core A port, the valve core B port, the color paste barrel inlet and outlet, and the color paste injection port are on the same circumference of the valve core cavity; the first core injection channel, the second injection channel and the radial channel are arranged on the valve core;
  • the end of the spool is also provided with a slanting passage, one end of the inclined passage is always connected to the inlet and outlet of the syrup barrel, and the other end of the slanting passage is connected with the inlet and outlet of the small pump at the initial position of the spool, and the other end of the inclined passage is in the injection state and the large pump
  • the inlet and outlet are connected; when the pump valve is in the initial position, the axes of the spool A port, the spool B port, the first injection passage, the second injection passage, and the radial passage are all located in the same plane.
  • the present invention has the following beneficial effects:
  • the main feature of the invention is that when the spool of the composite pump valve is in the initial position, that is, the spool of the pump valve is at the closed injection outlet, the composite pump can suck the color paste from the color paste bucket, and the composite pump can also The colorant inside the compound pump is discharged back into the color tank, that is, the spool is in the initial position, including both the suction color state and the return state.
  • the color paste in the pump body Before the small piston enters the small pump inlet and outlet (small pump chamber), the color paste in the pump body can be connected to the color paste barrel through the oblique channel, so that a large amount of low resistance is returned to the color paste barrel; also the spool is in the initial position, and the small piston enters the small
  • the recirculation process after the inlet and outlet of the pump (small pump chamber) is called the reflow state: the color paste of channel A or channel B can be returned to the color paste barrel through the low resistance of the oblique channel, and the remaining color paste passes through the unconnected oblique channel.
  • the other channel channel (channel A or channel B) only connects the return channel on the valve body to the color paste barrel through the injection channel.
  • the above strong reflow is The color paste is only connected to the color paste barrel through the injection channel.
  • the spool does not move, that is, when the composite pump draws the color paste at the initial position, before the small piston is separated from the small pump inlet and outlet (small pump chamber), part of the color paste passes through the injection channel or a large number of injection channels and a small amount of injection.
  • the channel is sucked, and after the small piston is separated from the small pump inlet and outlet (small pump chamber), the color paste is mainly sucked by the low resistance of the inclined channel.
  • the present invention can also set the reflow position. Rotate the spool to be in the return position.
  • the compound pump valve includes three types of recirculation: one of the recirculation type, one of the large pump or the small pump, and one of the large pump or the small pump is reflowed through the return port (oblique channel), and one of the remaining ones is strongly recirculated through the valve core injection channel; One of the large pump or the small pump is injected through one of the large number of injection channels or a small number of injection channels, and one of the remaining ones is returned through the return port (oblique channel) with low resistance; the return form is three, the large pump and the small pump are both The channel is forced back through the spool.
  • the communication passage in the valve is always not in communication with the left and right chamber passages and the end passage end of the valve body, a backflow short circuit is avoided. Since the large pump inlet and outlet and the small pump inlet and outlet are interchanged in the figure, only the small pump performs strong recirculation, and the large pump color slurry short-circuits into the color slurry barrel, which can increase the small pump pressure and perform stronger. Reflow; the rotation of the valve core can realize the corresponding large amount of color paste injection and micro-injection. Compared with the existing control valve, when the control valve core is in the initial position of no action, the small piston enters the small pump and the color paste is pumped.
  • the return path of the injection channel is strongly returned to the color paste barrel, which reduces the wear between the components of the control valve, increases the service life of the control valve, and simultaneously completes the relationship between the color paste barrel and the inside of the control valve. Strong reflow cleaning ensures the use performance and use status of the color paste injection channel and color paste in the spool. Most valuable is that this structure reduces the manufacturing cost of the prior art spool, and is an inexpensive structure.
  • Figure 1 is a schematic view of the overall structure of the present invention
  • FIG. 2 is a schematic structural view showing a state of a pump valve structure for preventing clogging of a viscous liquid in a discharge passage in the present invention
  • Figure 3 is a schematic view showing the structure of a large amount of slurry in the embodiment of Figure 2;
  • Figure 4 is a schematic view showing the structure of the small amount of the slurry in the embodiment of Figure 2;
  • Figure 5 is a schematic structural view of a plurality of reflow states of the embodiment of Figure 2;
  • Figure 6 is a schematic view showing the state of the structure of the pump valve structure for preventing clogging of the viscous liquid in the injection passage in the present invention
  • Figure 7 is a schematic view showing the structure of a large amount of slurry discharged in the embodiment of Figure 6;
  • Figure 8 is a schematic view showing the structure of the small amount of the slurry in the embodiment of Figure 6;
  • FIG. 9 is a schematic structural view of a plurality of reflow states of the embodiment of FIG. 6;
  • Figure 10 is a schematic view showing the state of the structure of the pump valve structure for preventing clogging of the viscous liquid in the injection passage of the present invention
  • Figure 11 is a schematic view showing the structure of a large amount of slurry in the embodiment of Figure 10;
  • FIG. 12 is a schematic structural view of a plurality of reflow states of the embodiment of FIG. 10;
  • Figure 13 is a schematic structural view of the non-working position of the embodiment of Figure 10;
  • Figure 14 is a schematic view showing the state of the structure of the pump valve structure for preventing clogging of the viscous liquid in the injection passage in the present invention
  • Figure 15 is a schematic view showing the structure of a large amount of slurry in the embodiment of Figure 14;
  • Figure 16 is a schematic structural view of the non-working position of the embodiment of Figure 14;
  • Figure 17 is a schematic view showing the structure of a plurality of reflow states of the embodiment of Figure 14;
  • Figure 18 is a schematic view showing the state of the structure of the pump valve structure for preventing clogging of the viscous liquid in the injection passage in the present invention
  • Figure 19 is a schematic view showing the structure of a large amount of the slurry in the embodiment of Figure 18;
  • Figure 20 is a schematic structural view of the non-working position of the embodiment of Figure 18;
  • Figure 21 is a schematic structural view of a plurality of reflow states of the embodiment of Figure 18;
  • Figure 22 is a schematic view showing the state of the structure of the pump valve structure for preventing clogging of the viscous liquid in the injection passage of the present invention
  • Figure 23 is a schematic view showing the structure of a large amount of slurry discharged in the embodiment of Figure 22;
  • Figure 24 is a schematic structural view of the non-working position of the embodiment of Figure 22;
  • Figure 25 is a schematic view showing the structure of the small pump of the embodiment of Figure 22, the low-resistance reflux color paste of the return port;
  • Figure 26 is a schematic view showing the state of the structure of the pump valve structure for preventing clogging of the viscous liquid in the injection passage of the present invention
  • Figure 27 is a schematic view showing the structure of a large amount of slurry discharged in the embodiment of Figure 26;
  • FIG. 28 is a schematic structural view of a non-working position of the embodiment of FIG. 26;
  • Figure 29 is a schematic view showing the structure of the small pump of the embodiment of Figure 26, the low-resistance reflux color paste of the return port;
  • Figure 30 is a schematic view showing the state of the structure of the pump valve structure for preventing clogging of the viscous liquid in the injection passage of the present invention
  • Figure 31 is a schematic view showing the structure of the large pump inlet and outlet and the small pump inlet and outlet of the embodiment of Fig. 30;
  • Figure 32 is a schematic view showing the structure of the large pump inlet and outlet and the small pump inlet and outlet of the embodiment of Fig. 30;
  • Figure 33 is a schematic structural view of the non-working position of the embodiment of Figure 30;
  • Figure 34 is a schematic view showing the state of the structure of the pump valve of the present invention for preventing the clogging of the viscous liquid in the injection passage;
  • Figure 35 is a schematic view showing the structure of a large amount of slurry in the embodiment of Figure 34;
  • Figure 36 is a schematic view showing the structure of the large pump small-volume excellent slurry and the small pump low-resistance reflux color paste of the embodiment of Figure 34;
  • FIG. 37 is a schematic structural diagram of a non-working position of the embodiment of FIG. 34;
  • 38 is a schematic structural view showing the state of a pump valve structure for preventing clogging of a viscous liquid in a discharge passage in the present invention
  • 39 is a schematic view showing the structure of the large pump returning color paste to the color paste barrel of the embodiment of FIG. 38;
  • Figure 40 is a schematic view showing the structure of the large and small pumps simultaneously injecting the excellent slurry in the embodiment of Figure 38;
  • Figure 41 is a block diagram showing the structure of the non-working position of the embodiment of Figure 38.
  • Figure 42 is a schematic view showing the state of the structure of the pump valve structure for preventing clogging of the viscous liquid in the injection passage in the present invention
  • Figure 43 is a schematic view showing the structure of the large and small pump simultaneously injecting the excellent slurry in the embodiment of Figure 42;
  • Figure 44 is a schematic view showing the structure of the reflow position of the embodiment of Figure 42, the low-pressure reflow of the large pump, and the high-resistance reflow of the small pump;
  • Fig. 45 is a structural schematic view showing the reflow position of the pump in the embodiment of Fig. 42 with low resistance reflow.
  • the invention adopts the color medium of the transmission medium as an example for description, and other transmission media of different viscosities such as automobile refinish paint, ink, pigment, base paint, etc., can realize the backflow anti-blocking function described in the invention.
  • a pump valve structure for preventing clogging of a viscous liquid in a discharge passage includes a pump of a size of a piston structure, and a pump of the size of the piston is an outlet end of the large pump chamber.
  • a small pump cavity is arranged, a small piston is protruded from the end face of the large piston in the large pump cavity, the small piston and the small pump cavity form a small pump, the large pump and the small pump form a composite pump; and the control valve for controlling the circulation of the composite pump
  • the control valve comprises a valve body and a valve core.
  • the valve body is provided with a valve core cavity for accommodating the rotary valve core, and the valve core is placed in the valve core cavity;
  • the valve body is provided with a passage A, and one end of the passage A is connected with the large pump, and the valve body is Set channel B, one end of channel B is connected to the small pump, the other end of channel A forms the valve core A port on the valve core cavity, and the other end of the channel B forms the valve core B port on the valve core cavity;
  • the color paste barrel channel connecting the core cavity and the color paste barrel, the color paste barrel channel forming a spool color paste barrel mouth on the valve core cavity, and the valve core color paste barrel mouth is a part of the color paste barrel inlet and outlet;
  • the valve body is also There is a color slurry injection outlet; a valve core injection passage is arranged on the valve core, and the valve core injection passage is placed at the color paste injection outlet Note that when the bit viscous liquid.
  • the short circuit is arranged on the spool to realize the following two paths: (1), so that the spool injection passage is located at the initial position of the pump valve spool, and the small piston pump is shorted before the small pump chamber is separated from the small pump chamber
  • the channel is connected to the color paste barrel, and the low-resistance suction color paste is applied to the composite pump; (2) in the return state, the valve core A of the channel A or the valve core B of the channel B is connected to the valve core, and the color paste passes through the valve.
  • the core is injected out of the channel to the paste bucket.
  • valve core in the initial position means that the valve core of the pump valve is at the position of closing the injection port and sucking the color paste with low resistance.
  • the return state can be achieved by two positions: i), achieving a reflow condition at the initial position of the spool; and/or ii), additionally providing a separate return position.
  • the return position means that the composite pump valve can be used for the position of the injection action after rotating the proper angle from the initial position of the spool.
  • the above suitable angle should be determined according to the arrangement position of the internal passage of the spool, for example, after the 180° or -90° rotation from the initial position of the spool.
  • the composite pump when the spool of the composite pump valve is in the initial position, that is, the spool of the pump valve is at the closing injection outlet, the composite pump can suck the color paste from the color paste bucket, and the composite pump can also use the composite pump.
  • the internal color paste is discharged back into the color paste bucket. That is to say, when the spool is in the initial position, it includes both the suction color slurry state and the reflow state, and the action of the two state pistons is different.
  • the color paste in the pump body Before the small piston enters the small pump inlet and outlet (small pump chamber), the color paste in the pump body can be connected to the color paste barrel through the short-circuit channel, so that a large amount of low-resistance is returned to the color paste barrel; also the spool is in the initial position, and the small piston enters the small
  • the recirculation process after the inlet and outlet of the pump (small pump chamber) is called the reflow state: a part of the color paste passes through the channel A or the channel B, and flows back to the color paste barrel through the short-circuit channel with low resistance; the other part of the color paste passes through the remaining channel.
  • the valve core injection channel to connect the return channel on the valve body to the color slurry barrel strong reflow
  • the above strong reflow is the road color paste Connect the paste bucket backflow only through the injection channel.
  • the spool does not move, that is, when the composite pump draws the color paste at the initial position, before the small piston is separated from the small pump inlet and outlet (small pump chamber), part of the color paste passes through the injection passage, or a large number of injection channels and small injections.
  • the outlet channel is sucked, and after the small piston is separated from the small pump inlet and outlet (small pump chamber), the color paste is mainly sucked by the low resistance of the oblique passage.
  • the present invention can also set the reflow position. Rotate the spool to be in the return position. In the reflow position, after the color paste is pumped from the large pump chamber and/or the small pump chamber, the valve core is injected through the internal passage of the valve core, and the color paste is returned to the color paste barrel through the valve core injection passage.
  • the return state at the return position includes two types: i) in the reflow position, the short-circuit passage is in communication with the passage A or the passage B, then when the small piston does not enter the small pump chamber, the pump from the large pump chamber and the small pump chamber The colored paste enters the short-circuit path and the valve core injection channel respectively, and the low resistance flows back to the color paste barrel; when the small piston enters the small pump cavity, the channel A or the channel B that does not communicate with the short-circuit channel, and the valve core injection channel Connected, the color paste is returned to the color paste barrel with high resistance; ii), under the reflow position, the short circuit is not connected to channel A or channel B, that is, both channel A and channel B are connected to the valve core injection channel, then the large pump The color slurry pumped by the cavity and the small pump chamber is injected through the valve core, and the high resistance is returned to the color paste barrel.
  • the above structure regardless of the reflow position in which the reflow state occurs, enables one of the channels A, B, or the valve core to be simultaneously discharged.
  • the large and small pumps make a viscous liquid, and the viscous liquid with a large pressure passes through one of the passage A and the passage B through the internal passage of the valve core into the valve core injection passage, and the valve core is injected out of the passage.
  • the small pump sucks in the viscous liquid, and the viscous liquid enters the large pump or the small pump through the valve core injection passage.
  • the spool injection passage is thin, the viscous resistance is large, A large pump or a small pump chamber is easy to form a vacuum; the other passage enters the pump body through the short-circuit passage, and does not pass through the thin valve core injection passage, the viscous resistance is small, and the viscous liquid easily enters the remaining one large pump.
  • the small pump chamber when the small piston is separated from the small pump chamber, the large pump chamber and the small pump chamber are connected, and the vacuum portion is quickly filled with the viscous liquid, thereby saving the viscous liquid through the thin valve core and the injection channel is slow. Fill the vacuum for an extended period of time.
  • the technical solution of course also includes the state of the prior art.
  • the spool A port and the spool B port are on the same circumference of the spool cavity, and the spool injection passage is two, respectively, the spool X is injected out of the passage and The spool Y is injected out of the passage, the spool X injection passage and the spool Y injection passage communicate with the axial passage provided by the spool, the spool is in the return state, and the small piston enters the small pump body, one of the passage A or the passage B
  • the core valve of the Unicom valve core is connected by the shaft channel to the X injection channel and the spool Y injection channel.
  • valve core X injection channel and the spool Y injection channel correspond to the viscous liquid in the channel of the color paste barrel.
  • the return flow is collected into the color paste bucket; when the spool is rotated to the small injection position, so that the spool X injection passage is in the injection state, one of the passage A and the passage B communicates with the spool X through the axial passage.
  • the passage A and the passage B are collectively injected through the axial passage communicating spool Y injection passage.
  • a large pump strong return small pump low resistance suction color paste composite pump valve including a large and small composite pump
  • the size composite pump includes a large piston pump A and small
  • the piston pump B has a passage A corresponding to the large piston pump A and a passage B corresponding to the small piston pump B.
  • the small piston pump B is not working, the large piston pump A and the small piston pump B are both connected to the large pump inlet and outlet 1, the small pump inlet and outlet 2, the large pump inlet and outlet 1 is the inlet and outlet of the passage A, and the small pump inlet and outlet is the passage. B's import and export.
  • valve body A1 The outer surface of the valve body A1 is further provided with a color paste barrel inlet and outlet 10 and a color paste injection port Z1, and a valve body is arranged in the valve body A1, wherein the color paste barrel inlet and outlet 10 branches into a left cavity channel on both sides of the valve core cavity in the valve body.
  • C1 the right chamber channel C2 and the end channel (the end channel is indicated by the numeral 10 in Fig.
  • Fig. 2 is a state diagram in which the valve body structure is removed only for the valve body, so that the paste injection port Z1 appears to be suspended in Fig. 2.
  • a large pump inlet and outlet 1 and a small pump inlet and outlet 2 are disposed in the valve body A1, and a first radial passage 4 and a second radial passage are disposed on the axial passage 3 of the spool A2.
  • one end of the axial passage 3 of the spool A2 is further provided with a first injection passage 7 and a second injection passage 8, and the diameter of the first injection passage 7 is smaller than the second injection passage
  • the diameter of 8 is the other end of the valve core A2 that communicates with the short-circuit passage.
  • the short-circuit passage is an inclined passage 9, and one end of the inclined passage 9 is connected to the inlet and outlet 10 of the paste tank, and the other end of the inclined passage 9 is at the initial position of the spool.
  • the small pump inlet and outlet are connected.
  • the axes of the large pump inlet and outlet 1, the small pump inlet and outlet 2, the first radial passage 4, the second radial passage 5, and the third radial passage 6 are in the same plane, first The radial passage 4 and the third radial passage 6 are disposed coaxially, and the first injection passage 7 and the second injection passage 8 are disposed coaxially, and the first radial passage 4 is disposed in parallel with the first injection passage 7
  • the axes of the inclined channel 9, the small pump inlet and outlet 2 and the second radial channel 5 lie in the same plane.
  • the spool is in the initial position, and the small piston enters the small pump inlet and outlet (small pump chamber) before the color paste can be connected to the color paste barrel through the inclined channel 9 to reduce the large amount of backflow; also the spool is in the initial position, the small piston enters the small pump.
  • the shaft center passage 3 - the first injection passage 7 and the second injection passage 8 - the left chamber passage C1 and the right chamber passage C2 are recirculated to the connected paste drum inlet and outlet 10 to achieve strong backflow.
  • the valve stem is rotated by 90 degrees from the initial position, the large pump communicates with the axial passage 3 through the passage A and the second radial passage 5, and the small pump communicates with the axial passage 3 through the passage B and the first radial passage 4.
  • the shaft center passage 3 communicates with a large number of injection passages 8, so that the large and small pumps simultaneously inject excellent slurry from the injection port Z1, and the pump valve is in a large injection state.
  • the valve stem is reversed from the initial position by 90 degrees, the small pump communicates with the axial passage 3 via the passage B and the third radial passage 6, and the axial passage 3 communicates with the small injection passage 7, and the small pump is injected.
  • the outlet Z1 is filled with a small amount of excellent slurry, and the large pump is reflowed through the channel A and the inclined channel 9 with low resistance.
  • the valve stem is rotated 180 degrees from the initial position, that is, a large number of return positions, the composite pump performs a discharge operation, and the large pump communicates with the axial passage 3 through the passage A and the third radial passage 6, and the small pump passes
  • the channel B and the second radial channel 5 are connected to the axial channel 3, and the axial channel 3 passes through a plurality of injection channels 8 and a small amount of injection channels 7, which are respectively returned to the color slurry barrel through the left cavity channel C1 and the right cavity channel C2.
  • the pump valve is in a large flow return state.
  • a large pump inlet and outlet 11 and a small pump inlet and outlet 12 are disposed in the valve body A1, and a first radial passage 14 and a second radial passage are disposed on the axial passage 13 of the spool A2.
  • 15 and the third radial passage 16 one end of the axial passage 13 of the spool A2 is further provided with a first injection passage 17 and a second discharge passage 18, and the diameter of the first injection passage 17 is larger than the second injection passage
  • the diameter of 18, the other end of the valve core A2 is connected to the short-circuit passage.
  • the short-circuit passage is an inclined passage 19 in this embodiment, and one end of the inclined passage 19 is connected to the paste-tank inlet and outlet 20.
  • the inclined passage 9 The other end is in communication with the large pump inlet and outlet at the initial position of the spool.
  • the axes of the large pump inlet and outlet 11, the small pump inlet and outlet 12, the first radial passage 14, the second radial passage 15, and the third radial passage 16 are in the same plane
  • first The radial passage 14 and the third radial passage 16 are disposed coaxially
  • the first injection passage 17 and the second injection passage 18 are disposed coaxially
  • the first radial passage 14 is disposed perpendicular to the first injection passage 17
  • the axes of the inclined channel 19, the first injection channel 17 and the second radial channel 15 lie in the same plane. As shown in Fig.
  • the spool is in the initial position, and the small piston enters the small pump inlet and outlet (small pump chamber) before the color paste can be connected to the color paste barrel through the inclined channel 9 to reduce the large amount of backflow; also the spool is in the initial position, the small piston enters the small pump.
  • Channel A paste can pass through the large pump inlet and outlet 11 - oblique passage 9 low resistance backflow to the connected color paste barrel inlet and outlet 20, the remaining color paste passes through the passage B - small Pump inlet and outlet 12 - third radial passage 16 - axial passage 13 - first injection passage 17 and second injection passage 18 - left chamber passage C1 and right chamber passage C2 are returned to the connected color paste barrel Import and export 20 achieves strong backflow.
  • the valve stem is rotated 90 degrees from the initial position, the large pump communicates with the axial passage 13 through the passage A and the third radial passage 16, and the small pump communicates with the axial passage 13 through the passage B and the second radial passage 15.
  • the shaft center passage 13 communicates with a large number of first injection passages 17, so that the large and small pumps simultaneously inject a large amount of excellent slurry; as shown in FIG. 8, the valve stem is reversed from the initial position by 90 degrees, and the large pump passes through the passage A and the first.
  • the radial passage 14 communicates with the axial passage 13 and the axial passage 13 communicates with a small amount of the second injection passage 18, so that the large pump injects a small amount of excellent slurry from the injection port, and the small pump passes through the passage B and the inclined passage 19 to lower the resistance. Pulp.
  • the valve stem is rotated 180 degrees from the initial position, that is, a large number of return positions, the composite pump performs a discharge operation, and the large pump communicates with the axial passage 13 through the passage A and the second radial passage 15, and the small pump passes
  • the channel B and the first radial channel 14 are connected to the axial channel 13, and the axial channel 13 passes through the first injection channel 17 and the second injection channel 18, respectively, and flows back to the color paste barrel through the left cavity channel and the right cavity channel, respectively.
  • both the large and small pumps are in a large amount of reflow.
  • valve core injection passage is only one, that is, the injection passage 48 in FIG. 10; the short circuit is the same as in the first embodiment, That is, a slanting channel 49 is connected at one end to the inlet and outlet 50 of the syrup barrel, and the other end is connected to the inlet and outlet of the small pump at the initial position of the spool.
  • the passage A communicates with the spool axial passage 44, and the spool passage 44 communicates with the spool injection passage 48, and the spool injection passage 48 corresponds to the Uniform paste bucket passage 50 to be collected into the paste bucket;
  • a large pump inlet and outlet 42 and a small pump inlet and outlet 43 are disposed in the valve body, and the axial passage 44 of the spool is provided with a first radial passage 45, a second radial passage 46 and a third radial direction.
  • one end of the axial passage 44 of the spool is further provided with a discharge passage 48, the other end of the spool is provided with a slanting passage 49, and one end of the inclined passage 49 is connected to the inlet and outlet 50 of the syrup barrel, wherein the pump valve is initially In the position, the axes of the large pump inlet and outlet 42, the small pump inlet and outlet 43, the first radial passage 45, the second radial passage 46 and the third radial passage 47 are located in the same plane, the first radial passage 45 and the first The three radial passages 47 are disposed coaxially, the first radial passage 45 and the second radial passage 46 are vertically disposed, and the third radial passage 47 is disposed in parallel with the injection passage 48, and the inclined passage 49 and the second radial passage 46 are disposed. It is in the same plane as the axis of the small pump inlet and outlet 43.
  • valve core is in the initial position, and the small piston enters the small pump inlet and outlet (small pump chamber) before the color paste can be connected to the color slurry barrel inlet and outlet through the inclined channel 49, and the low-resistance large-scale return; the same valve core is in the initial position, the small piston enters.
  • channel B color paste can pass through small pump inlet and outlet 43 - oblique channel 49 low resistance backflow to the connected color paste barrel inlet and outlet 50, the remaining color paste passes through channel A - Large pump inlet and outlet 42 - First radial passage 45 - Axis passage 44 - Injection passage 48 - The right chamber passage is recirculated to the inlet and outlet of the color paste barrel 50 to achieve a strong backflow.
  • valve stem is rotated 90 degrees from the initial position, and the large and small pumps are simultaneously injected with excellent pulp;
  • valve stem is rotated 180 degrees from the initial position to the return position, and both the large and small pumps are in a large amount of reflow.
  • valve core injection channel is only one, that is, the injection channel 57 in FIG. 14; the short circuit channel is the same as that in the embodiment 2, that is, one oblique channel 58 is connected at one end.
  • the color slurry bucket inlet and outlet 59, the other end is connected to the large pump inlet and outlet at the initial position of the spool.
  • valve body is provided with a large pump inlet and outlet 51 and a small pump inlet and outlet 52.
  • the axial center passage 53 of the spool is provided with a first radial passage 54, a second radial passage 55 and a third radial direction.
  • the passage 56 has a discharge passage 57 at one end of the spool passage 53 of the valve core, and the inclined end passage 58 is provided at the other end of the spool, and one end of the inclined passage 58 is connected to the paste tank inlet and outlet 59, wherein the pump valve is initially In the position, the axes of the large pump inlet and outlet 51, the small pump inlet and outlet 52, the first radial passage 54, the second radial passage 55 and the third radial passage 56 are located in the same plane, the first radial passage 54 and the first The three radial passages 56 are disposed coaxially.
  • the first radial passage 54 and the second radial passage 55 are vertically disposed, and the axes of the inclined passage 58, the second radial passage 55, and the discharge passage 57 are located in the same plane.
  • the small pump draws the color paste before the small piston is separated from the small pump inlet and outlet (small pump chamber), and the large pump draws the color paste with low resistance;
  • valve core is in the initial position, and the small piston enters the small pump inlet and outlet (small pump chamber) before the color paste can be connected to the color paste barrel inlet and outlet through the inclined passage 58 to reduce the large amount of backflow; the same spool is in the initial position, the small piston enters.
  • channel A color paste passes through large pump inlet and outlet 51 - oblique channel 58 low resistance backflow to the connected color paste barrel inlet and outlet 59, the remaining color paste passes through channel B - - Small pump inlet and outlet 52 - Third radial passage 56 - Axial passage 53 - Injection passage 57 - The left chamber passage is recirculated to the inlet and outlet of the color paste barrel 59 for strong recirculation.
  • valve stem is rotated 90 degrees from the initial position, and the large and small pumps are simultaneously injected with excellent slurry, and only this one is injected into the working position.
  • valve stem is inverted 90 degrees from the initial position. This state is not used on the product, but can be used for seal inspection of the product.
  • valve stem is rotated 180 degrees from the initial position, which is the return position, and both the large and small pumps are in a large amount of reflow.
  • the above process is similar to that of Embodiment 2, and a large amount of reflow state is only recirculated through the right lumen channel.
  • the embodiment is different from the embodiment 2, in this embodiment, the communication with the axial channel only includes two radial channels, the valve core injection channel is only one, that is, the injection channel 65 in FIG. 18;
  • the short-circuit passage is the same as that of Embodiment 2, that is, an inclined passage 66, one end of which is connected to the slurry tank inlet and outlet 67, and the other end is connected to the large pump inlet and outlet at the initial position of the spool.
  • the valve body is provided with a large pump inlet and outlet 60 and a small pump inlet and outlet 61.
  • the axial center passage 62 of the spool is provided with a first radial passage 63 and a second radial passage 64, and the spool shaft
  • One end of the heart passage 62 is further provided with a discharge passage 65.
  • the other end of the valve core is provided with a slanting passage 66, and one end of the inclined passage 66 is connected to the inlet and outlet 67 of the syrup barrel, wherein the pump is in the initial position, the large pump inlet and outlet 60.
  • the axis of the small pump inlet and outlet 61, the first radial passage 63 and the second radial passage 64 are located in the same plane, the first radial passage 63 and the second radial passage 64 are perpendicular, and the injection passage 65 and the first A radial passage 63 is vertically disposed, and the axes of the inclined passage 66, the second radial passage 64, and the discharge passage 65 are located in the same plane.
  • valve core is in the initial position, and the small piston enters the small pump inlet and outlet (small pump chamber) before the color paste can be connected to the color slurry barrel inlet and outlet through the inclined channel 66.
  • small pump inlet and outlet small pump chamber
  • the small piston enters.
  • channel A color paste passes through large pump inlet and outlet 60 - oblique channel 66 low resistance backflow to the connected color paste barrel inlet and outlet 67, the remaining color paste passes through channel B - - Small pump inlet and outlet 61 - First radial passage 63 - Axial passage 62 - Injection passage 65 - The left chamber passage is recirculated to the inlet and outlet of the color paste barrel 67 to achieve a strong backflow.
  • valve stem is rotated 90 degrees from the initial position, and the pump is primed at the same time. Only this one is injected out of the working position; as shown in Figure 20, the valve stem is reversed from the initial position by 90 degrees. This state is not on the product. Use, because there is no access, it can be used for product seal inspection.
  • valve stem is rotated 180 degrees from the initial position to be the return position.
  • the large pump is in a large amount of reflow.
  • a large amount of backflow can only be recirculated through the left chamber channel before the small piston enters the small pump chamber.
  • the spool A port ie, one of the large pump inlet and outlet or small pump inlet and outlet in Figure 22
  • the spool B port ie, the large pump inlet or outlet or small pump in Figure 22
  • One of the inlet and outlet ports is disposed in parallel with the spool cavity axis, and the spool injection passages are two, that is, the first injection passage 76 and the second injection passage 77 in FIG. 22, respectively, the spool X Note the channel and spool Y injection channel.
  • the spool X injection passage and the spool Y injection passage communicate with the axial passage provided by the spool.
  • the passage A communicates with the spool axial passage, and the spool passage communicates with the spool X.
  • Outlet channel and spool Y injection channel, spool X injection channel and spool Y injection channel corresponding to the union paste bucket channel is collected into the paste bucket;
  • the passage A communicates with the spool X injection passage through the axial passage 71; as shown in FIG. 25, the spool Y injection passage is located at the injection.
  • the channel A and the channel B are collectively injected through the shaft center passage 71 to communicate with the spool Y injection passage.
  • the short-circuit passage includes two inclined passages 78, 79, and the return port 70 is disposed at the same time, and the four-way passages 72, 73, 74 are communicated with the axial passage 71. 75; the same as in Embodiment 1, wherein one of the inclined passages 78 communicates with the small pump, including the two injection passages 76, 77.
  • the specific instructions are as follows:
  • the valve body is provided with a large pump inlet and outlet 68, a small pump inlet and outlet 69 and a return port 70, and the return port 70 is connected with the large pump body; the first diameter of the spool center passage 71 is provided.
  • the second radial passage 73, the third radial passage 74 and the fourth radial passage 75 one end of the axial passage 71 of the spool is further provided with a first injection passage 76 and a second discharge passage 77.
  • the diameter of the first injection passage 76 is larger than the diameter of the second injection passage 77, and the other end of the valve core is further provided with a first inclined passage 78 and a second inclined passage 79, and the first inclined passage 78 and the second inclined passage 79 are provided.
  • One end of the first inclined channel 78 communicates with the inlet and outlet of the small pump at the initial position of the first inclined channel 78, and the second inclined channel 79 communicates with the return port 70 in a small injection state of the small pump.
  • the axes of the first radial passage 72, the second radial passage 73 and the small pump inlet and outlet 69 are in the same plane
  • the axes of the pump inlet and outlet 68 are located in the same plane
  • the axes of the large pump inlet and outlet 68, the small pump inlet and outlet 69, the first oblique passage 78 and the third radial passage 74 are located in the same plane
  • the two radial passages 73 are disposed coaxially
  • the third radial passage 74 and the fourth radial passage 75 are vertically disposed
  • the first injection passage 76 and the second injection passage 77 are coaxially disposed
  • the first injection passage 76 is provided. It is disposed in parallel with the first radial passage 72.
  • a part of the color paste enters the axial passage 71 through the two side chamber passages and the injection passage, and passes through the third path.
  • the large pump is introduced into the passage 74 and the large pump inlet and outlet 68 to realize a large pump to suck the color slurry.
  • a part of the color paste enters the small pump inlet and outlet 69 through the first inclined passage 78, and the small pump sucks the color paste with low resistance.
  • the spool is in the initial position, and the small piston enters the small pump inlet and outlet (small pump chamber) before the color paste can be connected to the color paste barrel inlet and outlet through the inclined channel 78.
  • 80 low resistance large amount of recirculation; the same spool in the initial position, the small piston enters Return state after small pump inlet and outlet (small pump chamber): channel B color paste can pass through small pump inlet and outlet 69 - oblique channel 78 low resistance backflow to the connected color paste barrel inlet and outlet 80, the remaining color paste passes through channel A - Large pump inlet and outlet 68 - Third radial channel 74 - Axis channel 71 - Injection channel 76, 77 - Left cavity channel, right cavity channel backflow to the connected color paste barrel inlet and outlet 80 to achieve strong reflow .
  • the valve stem is rotated 90 degrees from the initial position, the large pump passes through the fourth radial passage 75, and the small pump passes through the second radial passage 73 while entering the axial passage 71 - the first injection passage 76 - Injection Z6, to achieve large and small pumps at the same time injection of excellent pulp.
  • valve stem is rotated 180 degrees from the initial position. This state is not used on the product, but can be used for seal inspection of the product.
  • the valve stem is reversed from the initial position by 90 degrees, and the small pump realizes a small amount of injection through the small pump inlet and outlet 69 - the first radial passage 72 - the axial passage 71 - the second injection passage 77 Out.
  • the large pump inlet and outlet 68 is blocked by the valve core at this time, and the color slurry pumped by the large pump is returned to the color paste barrel through the return port 70 and the second oblique passage 79, and this is also the return state of the return position.
  • the short-circuit channel is an inclined channel 91, and the fifth radial channel 92 is provided at the same time.
  • the specific description is as follows: as shown in FIG. 26, the valve body is provided with a large pump inlet and outlet 81.
  • the core axial passage 84 is provided with a first radial passage 85, a second radial passage 86, a third radial passage 87 and a fourth radial passage 88, and one end of the axial passage 84 of the spool is further provided with a channel 89 and a second injection channel 90, the diameter of the first injection channel 89 is larger than the diameter of the second injection channel 90, and the other end of the valve core is provided with a diagonal channel 91 and a fifth radial channel 92.
  • One end of the inclined passage 91 and the fifth radial passage 92 are communicated with the paste tank inlet and outlet 93, and the other end of the inclined passage 91 communicates with the inlet and outlet of the small pump at the initial position of the spool.
  • the fifth radial passage 92 communicates with the return port 83 in a small pump small injection state.
  • the axes of the first radial passage 85, the second radial passage 86 and the small pump inlet and outlet 82 are in the same plane
  • the axis of the pump inlet and outlet 81 is located in the same plane
  • the axis of the inclined passage 91 and the axis of the large pump inlet and outlet 81 are in the same plane
  • the first radial passage 85 and the second radial passage 86 are coaxially arranged
  • the third diameter The channel 87 and the fourth radial channel 88 are vertically disposed.
  • the diameter of the third radial channel 87 is larger than the diameter of the fourth radial channel 88.
  • the first injection channel 89 and the second injection channel 90 are coaxially disposed.
  • a take-out passage 89 is disposed in parallel with the first radial passage 85, and the fifth radial passage 92 and the first radial passage 85 are disposed in parallel.
  • the valve core is in the initial position, and the small piston enters the small pump inlet and outlet (small pump chamber) before the color paste can pass through the small pump inlet and outlet 82 - the inclined channel 91 is connected to the color paste barrel inlet and outlet 93 low resistance large amount of reflux; the same spool In the initial position, the small piston enters the small pump inlet and outlet (small pump chamber) after the return state: channel B color paste can pass through the small pump inlet and outlet 82 - oblique channel 91 low resistance backflow to the connected color paste barrel inlet and outlet 93, The remaining color paste passes through channel A - large pump inlet and outlet 81 - third radial channel 87 - axial channel 84 - injection channel 89, 90 - left cavity channel, right cavity channel back to the connected color paste The barrel inlet and outlet 93 achieves a strong backflow.
  • valve stem is rotated 90 degrees from the initial position, and the large and small pumps are injected through the injection passage 89 while the excellent slurry is injected.
  • valve stem is rotated 180 degrees from the initial position. This state is not used on the product, but can be used for seal inspection of the product;
  • valve stem is reversed from the initial position by 90 degrees, the small pump is injected a small amount through the injection passage 90, and the return port 83 is returned to the color paste through the fifth radial passage 92, which is also the return position. Return state.
  • the valve body is provided with a large pump inlet and outlet 102 and a small pump inlet and outlet 101 that communicate with the composite pump.
  • the axes of the large pump inlet and outlet 102 and the small pump inlet and outlet 101 are in the same plane, and the spool core is
  • the passage 103 is provided with a first radial passage 104, a second radial passage 105, a third radial passage 106, a fourth radial passage 107 and a fifth radial passage 108, and one end of the axial passage 103 of the spool is further provided
  • the first injection channel 109 and the second injection channel 110 are provided.
  • the diameter of the first injection channel 109 is the same as the diameter of the second injection channel 110.
  • the short circuit channel is also a diagonal channel, and the valve core is another.
  • An inclined channel 111 is further disposed at one end, and one end of the inclined channel 111 communicates with the ink slurry barrel inlet and outlet 112, and the other end of the inclined channel 111 communicates with the small pump inlet and outlet at the initial position of the valve core, wherein the first path of the pump valve is in the initial position.
  • the axis 104, the second radial channel 105 and the axis of the large pump inlet and outlet 101 are in the same plane, the third radial channel 106, the fourth radial channel 107, the fifth radial channel 108 and the small pump inlet and outlet 101
  • the axes are in the same plane, the axis of the inclined channel 111 and the axis of the large pump inlet and outlet 102
  • the first radial passage 104 and the second radial passage 105 are disposed coaxially
  • the third radial passage 106 and the fourth radial passage 107 are vertically disposed, the third radial passage 106 and the fifth radial direction
  • the channel 108 is disposed coaxially.
  • the first injection channel 109 and the second injection channel 110 are disposed coaxially.
  • the first injection channel 109 and the first radial channel 104 are disposed in parallel.
  • the large pump inlet and outlet 102 sucks a large amount of color paste, and the small pump inlet and outlet 101 has a low resistance suction color paste.
  • the valve core is in the initial position, and the small piston enters the small pump inlet and outlet (small pump chamber) before the color paste can pass through the small pump inlet and outlet 101 - the inclined channel 111 is connected to the color paste barrel inlet and outlet 112 with low resistance and large amount of reflux;
  • the small piston enters the small pump inlet and outlet (small pump chamber) after the return state: channel B color paste can pass through the small pump inlet and outlet 101 - oblique channel 111 low resistance backflow to the connected color paste barrel inlet and outlet 112,
  • the remaining color paste passes through the passage A - the large pump inlet and outlet 102 - the fourth radial passage 107 - the axial passage 103 - the injection passages 109, 110 - the left chamber passage and the right chamber passage are recirculated to the connected color paste
  • the barrel inlet and outlet 112 achieves a strong backflow.
  • valve stem is rotated 90 degrees from the initial position, and the large pump inlet and outlet 102 and the small pump inlet and outlet 101 simultaneously inject a large amount of excellent slurry, and the color paste is injected through the second injection passage 110; as shown in FIG.
  • the valve stem is reversed from the initial position by 90 degrees, and the large pump inlet and outlet 101 and the small pump inlet and outlet 102 simultaneously inject a large amount of excellent slurry, and the color paste is injected through the first injection passage 109.
  • valve stem is rotated 180 degrees from the initial position. This condition is not used on the product, but can be used for seal inspection of the product.
  • the two injection passages of the above pump valve structure are the same in size. In normal use, it is equal to having a spare injection passage. When one injection passage is blocked, the rotary spool can use another injection passage to ensure normal operation. Note.
  • the valve body is provided with a large pump inlet and outlet 113 and a small pump inlet and outlet 114.
  • the axes of the large pump inlet and outlet 113 and the small pump inlet and outlet 114 are located in the same plane, and the spool center passage 115 is provided.
  • first radial passage 116 There are a first radial passage 116, a second radial passage 117, a third radial passage 118 and a fourth radial passage 119, and one end of the axial passage 115 of the spool is further provided with a first injection passage 120 and a second The channel 121 is marked, the diameter of the first injection channel 120 is smaller than the diameter of the second injection channel 121, and the other end of the valve core is further provided with a first oblique channel 122 and a second oblique channel 123, the first oblique channel 122 and the first The two inclined channels 123 are all connected with the color slurry barrel inlet and outlet 124.
  • the other end of the first inclined channel 122 is in communication with the small pump inlet and outlet 114 at the initial position of the valve core, and the second inclined channel 123 is in a small pump injection state and a small pump. Import and export 114 connections.
  • the axes of the first radial passage 116 and the small pump inlet and outlet 114 are in the same plane, the second radial passage 117, the third radial passage 118, the fourth radial passage 119 and the large
  • the axis of the pump inlet and outlet 113 is located in the same plane, the axis of the first inclined channel 122 and the axis of the large pump inlet and outlet 113 are in the same plane, and the first radial channel 116 and the second radial channel 117 are arranged in parallel, the third path
  • the first radial channel 117 and the fourth radial channel 119 are disposed in the same axial direction, and the first injection channel 120 and the second injection channel 121 are coaxially
  • the large pump inlet and outlet 113 sucks a large amount of color paste, and the small pump inlet and outlet 114 has a low resistance suction color paste.
  • the principle is the same as that of the eighth embodiment.
  • the valve core is in the initial position, and the small piston enters the small pump inlet and outlet (small pump chamber) before the color paste can pass through the small pump inlet and outlet 114 - the inclined channel 112 is connected to the color paste barrel inlet and outlet 124 and the low resistance large amount of reflux; the same spool In the initial position, the small piston enters the small pump inlet and outlet (small pump chamber) after the return state: channel B color paste can pass through the small pump inlet and outlet 114 - the oblique passage 112 low resistance backflow to the connected color paste barrel inlet and outlet 124, The remaining color paste passes through the passage A - the large pump inlet and outlet 113 - the third radial passage 118 - the axial passage 115 - the injection passages 120, 121 - the left chamber passage and the right chamber passage are recirculated to the connected color paste
  • the barrel inlet and outlet 124 achieves strong backflow.
  • valve stem is rotated 90 degrees from the initial position, and the large pump inlet and outlet 113 and the small pump inlet and outlet 114 are injected through the first radial passage 116 and the second radial passage 117, the axial passage 115.
  • the channel 120 simultaneously injects a large amount of excellent pulp.
  • valve stem is reversed from the initial position by 90 degrees, and the large pump inlet and outlet 113 passes through the fourth radial passage 119 - the axial passage 115 - the injection passage 121 is injected with a small amount of excellent slurry, and the small pump inlet and outlet
  • the color slurry pumped by the 114 is returned to the paste tank channel 124 through the second oblique passage 123 to return to the paste tank passage 124, and is in a return state at the return position.
  • valve stem is rotated 180 degrees from the initial position. This state is not used on the product, but can be used for seal inspection of the product.
  • the spool A port i.e., the orifice of the second injection passage 98 in Fig. 38 on the valve core surface
  • the spool B port i.e., the inclined passage 100 in Fig. 38 are in the valve.
  • the valve body On the same circumference of the valve body cavity, the valve body is provided with a large pump inlet and outlet 94 and a small pump inlet and outlet 95.
  • the valve core is provided with a first injection passage 97, a second injection passage 98 and a diameter.
  • the end of the valve core is further provided with a slanting channel 100, one end of the slanting channel 100 is always connected to the slab inlet and outlet 96, and the other end of the slanting channel 100 is connected with the small pump inlet and outlet 95 at the initial position of the valve core, the inclined channel
  • the other end of the 100 is in communication with the large pump inlet and outlet 94 in the injection state.
  • the spool is in the initial position, the small piston enters the small pump inlet and outlet (small pump chamber) before the color paste can pass through the small pump inlet and outlet 95 - the inclined channel 110 is connected to the color paste barrel inlet and outlet 96 low resistance large amount of reflux; the same spool In the initial position, the small piston enters the small pump inlet and outlet (small pump chamber) after the return state: channel B color paste can pass through the small pump inlet and outlet 95 - oblique channel 110 low resistance backflow to the connected color paste barrel inlet and outlet 96, The remaining color paste passes through channel A - large pump inlet and outlet 94 - second injection channel 98 - first injection channel 97 - the right chamber channel is returned to the connected color paste barrel inlet and outlet 96 for strong backflow.
  • valve stem is reversed from the initial position by 90 degrees, and the color slurry pumped by the large pump is returned to the color paste barrel by the low-resistance backflow of the inclined channel 100 to the color paste barrel, and the color of the small pump is injected.
  • the slurry passes through the small pump inlet and outlet 95 directly to the first injection passage 97, and the first injection passage 97 communicates with the second injection passage 98 and is injected.
  • the valve stem is rotated 90 degrees from the initial position, the large pump passes through the large pump inlet and outlet 94, the radial passage 99 communicates with the first injection passage 97, and the small pump passes through the small pump inlet and outlet 95 and the second injection passage.
  • 95 is connected to the first injection channel 97, and finally is merged and injected by the first injection channel 97, so that the large and small pumps are simultaneously injected with excellent slurry.
  • valve stem is rotated 180 degrees from the initial position. This condition is not used on the product, but can be used for seal inspection of the product.
  • valve core A port and the valve core B port are on the same circumference of the valve core cavity.
  • the difference from the third embodiment is that the channel 47 is not in communication with the axial center channel 44 in this embodiment.
  • One end of the passage 47 is in communication with the inclined passage 49.
  • the valve body is provided with a large pump inlet and outlet 42 and a small pump inlet and outlet 43, and the axial center passage 44 of the valve core is provided with a first radial passage 45 and a second radial passage 46, the spool of the spool One end of the heart passage 44 is further provided with a discharge passage 48, and the other end of the valve core is provided with a slanting passage 49, and one end of the inclined passage 49 is connected to the inlet and outlet 50 of the syrup barrel, wherein, when the pump valve is in the initial position, the large pump inlet and outlet 42.
  • the axis of the small pump inlet and outlet 43, the first radial passage 45 and the second radial passage 46 are located in the same plane, and the first radial passage 45 and the second radial passage 46 are vertically disposed, and the inclined passage 49 and the second The radial passage 46 and the axis of the small pump inlet and outlet 43 are in the same plane.
  • valve stem is rotated 90 degrees from the initial position, and the pump is primed at the same time.
  • the valve stem is rotated 180 degrees from the initial position, which is the return position.
  • the large pump communicates with the passage 47 through the passage A
  • the passage 47 communicates with the inclined passage 49
  • the low resistance flows back to the color paste barrel; B.
  • the second radial passage 46 communicates with the axial center passage 44. After the injection passage 48 and the left chamber passage, the color paste is returned to the color paste barrel with high resistance.
  • the color slurry pumped by the large pump communicates with the inclined channel 49 through the channel A, and the low resistance flows back to the color paste barrel; the color slurry pumped by the small pump passes through the channel 47, and the channel 47 communicates with the oblique channel 49, which is also low resistance. Return to the paste bucket.
  • the present invention is not limited to any form, material, structure or the like of the present invention. Any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are all protected by the technical solution of the present invention. range.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Multiple-Way Valves (AREA)

Abstract

L'invention concerne une vanne de pompe composite, comprenant : une pompe composite formée d'une grande pompe et d'une petite pompe, et une vanne de commande, une cavité de cœur de vanne étant ménagée dans un corps de vanne de cette dernière pour recevoir un cœur de vanne pouvant tourner à l'intérieur de cette dernière, le cœur de vanne étant disposé dans la cavité de cœur de vanne, des canaux A et B étant agencés sur un corps de vanne (A1), une extrémité du canal A étant en communication avec la grande pompe, une extrémité du canal B étant en communication avec la petite pompe, et un canal de seau de pâte colorée, utilisé pour mettre en communication la cavité de cœur de vanne et un seau de pâte colorée, est ménagé dans le corps de vanne (A1) ; le corps de vanne (A1) est en outre pourvu d'un orifice d'écoulement de pâte colorée (Z1) ; le cœur de vanne (A2) est pourvu de canaux d'écoulement de cœur de vanne (7, 8) ; et le cœur de vanne (A2) est pourvu d'un canal de trajet court (9) permettant de former les deux passages suivants : (1) lorsque le cœur de vanne (A2), situé au niveau de la vanne de pompe, des canaux d'écoulement de cœur de vanne (7, 8) est située au niveau d'une position initiale, et avant qu'un petit piston d'une pompe à petit piston s'éloignant d'une cavité de petite pompe, un liquide visqueux est relié au seau de pâte colorée par l'intermédiaire du canal de trajet court (9), et le liquide visqueux est pompé vers la pompe composite au moyen d'une faible résistance ; et (2) lorsqu'elles sont dans un état de reflux, un orifice d'un cœur de vanne A du canal A ou un orifice d'un cœur de vanne B du canal B sont en communication avec les canaux d'écoulement de cœur de vanne (7, 8), et le liquide visqueux retourne vers le seau de pâte coloré à travers les canaux d'écoulement de cœur de vanne (7, 8). La vanne de pompe composite peut empêcher le liquide visqueux de bloquer les canaux d'écoulement.
PCT/CN2018/122960 2017-12-22 2018-12-22 Vanne de pompe composite WO2019120306A1 (fr)

Applications Claiming Priority (14)

Application Number Priority Date Filing Date Title
CN201711400586.0A CN108194302B (zh) 2017-12-22 2017-12-22 大泵前端强回流低阻复合泵阀
CN201711400588.X 2017-12-22
CN201711400496.1 2017-12-22
CN201711400600.7 2017-12-22
CN201711400484.9 2017-12-22
CN201711400600.7A CN108194304B (zh) 2017-12-22 2017-12-22 大泵强回流小泵注小量复合泵
CN201711400453.3 2017-12-22
CN201711400500.4A CN108194301B (zh) 2017-12-22 2017-12-22 小泵强回流大泵注小量复合泵
CN201711400586.0 2017-12-22
CN201711400453.3A CN108194297B (zh) 2017-12-22 2017-12-22 低阻抽取强回流平面阀复合泵
CN201711400588.XA CN108194303B (zh) 2017-12-22 2017-12-22 小泵强回流大泵单注出复合泵阀
CN201711400500.4 2017-12-22
CN201711400496.1A CN108194300B (zh) 2017-12-22 2017-12-22 大小泵同时强回流及大小泵同时注出复合泵阀
CN201711400484.9A CN108194299B (zh) 2017-12-22 2017-12-22 大泵强回流大泵单注出复合泵阀

Publications (1)

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WO2019120306A1 true WO2019120306A1 (fr) 2019-06-27

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2474222Y (zh) * 2001-04-29 2002-01-30 葛文青 可调色喷漆装置
US8240513B2 (en) * 2008-03-24 2012-08-14 Fluid Management Operations Llc Fluid dispenser with nested displacement members
WO2016095865A1 (fr) * 2014-12-19 2016-06-23 郑州三华科技实业有限公司 Pompe à pâte de couleur adaptée à la fois à une injection massive et à une micro-injection
CN108194304A (zh) * 2017-12-22 2018-06-22 郑州三华科技实业有限公司 大泵强回流小泵注小量复合泵
CN108194300A (zh) * 2017-12-22 2018-06-22 郑州三华科技实业有限公司 大小泵同时强回流及大小泵同时注出复合泵阀
CN108194297A (zh) * 2017-12-22 2018-06-22 郑州三华科技实业有限公司 低阻抽取强回流平面阀复合泵
CN108194301A (zh) * 2017-12-22 2018-06-22 郑州三华科技实业有限公司 小泵强回流大泵注小量复合泵
CN108194302A (zh) * 2017-12-22 2018-06-22 郑州三华科技实业有限公司 大泵前端强回流低阻复合泵阀
CN108194303A (zh) * 2017-12-22 2018-06-22 郑州三华科技实业有限公司 小泵强回流大泵单注出复合泵阀
CN108194299A (zh) * 2017-12-22 2018-06-22 郑州三华科技实业有限公司 大泵强回流大泵单注出复合泵阀

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2474222Y (zh) * 2001-04-29 2002-01-30 葛文青 可调色喷漆装置
US8240513B2 (en) * 2008-03-24 2012-08-14 Fluid Management Operations Llc Fluid dispenser with nested displacement members
WO2016095865A1 (fr) * 2014-12-19 2016-06-23 郑州三华科技实业有限公司 Pompe à pâte de couleur adaptée à la fois à une injection massive et à une micro-injection
CN108194304A (zh) * 2017-12-22 2018-06-22 郑州三华科技实业有限公司 大泵强回流小泵注小量复合泵
CN108194300A (zh) * 2017-12-22 2018-06-22 郑州三华科技实业有限公司 大小泵同时强回流及大小泵同时注出复合泵阀
CN108194297A (zh) * 2017-12-22 2018-06-22 郑州三华科技实业有限公司 低阻抽取强回流平面阀复合泵
CN108194301A (zh) * 2017-12-22 2018-06-22 郑州三华科技实业有限公司 小泵强回流大泵注小量复合泵
CN108194302A (zh) * 2017-12-22 2018-06-22 郑州三华科技实业有限公司 大泵前端强回流低阻复合泵阀
CN108194303A (zh) * 2017-12-22 2018-06-22 郑州三华科技实业有限公司 小泵强回流大泵单注出复合泵阀
CN108194299A (zh) * 2017-12-22 2018-06-22 郑州三华科技实业有限公司 大泵强回流大泵单注出复合泵阀

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