CN213745056U - Pneumatic control glue feeding linkage reversing valve and control device thereof - Google Patents
Pneumatic control glue feeding linkage reversing valve and control device thereof Download PDFInfo
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- CN213745056U CN213745056U CN202022907350.XU CN202022907350U CN213745056U CN 213745056 U CN213745056 U CN 213745056U CN 202022907350 U CN202022907350 U CN 202022907350U CN 213745056 U CN213745056 U CN 213745056U
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Abstract
The utility model discloses a pneumatic control advances to glue linkage switching-over valve and controlling means thereof solves the technical problem that the precision that the point gum machine can not satisfy the operation demand of explosion-proof workshop electroless control, manual operation point were glued is low, work efficiency is low in the prior art. The utility model provides a pneumatic control glue feeding linkage reversing valve, which comprises an upper valve body, a lower valve body and a valve core, wherein a sealed gas circuit adjusting cavity matched with the structure of the valve core is arranged in the middle of the valve body in a communication way, and the upper valve body is provided with a gas inlet, a first gas outlet and a second gas outlet; the lower valve body is provided with an air cover, a first sealing piston is transversely arranged in the air cover, and the outer side of the first sealing piston is communicated with an air source; the other side of the first sealing piston is connected with a limiting linkage clamping plate, and the limiting linkage clamping plate is adjustably clamped and fixed with and separated from the valve core through a side spring; the bottom of the sealed gas circuit adjusting cavity of the lower valve body is also fixedly provided with a vertical compression spring device which vertically penetrates through the limiting linkage clamping plate; can be widely applied to the technical field of dispenser.
Description
Technical Field
The utility model relates to a point gum machine technical field specifically is a pneumatic control advances gluey linkage switching-over valve and controlling means thereof.
Background
In industrial production, dispensing is required in many places, such as integrated circuits, printed circuit boards, color liquid crystal screens, electronic components (e.g., relays, speakers), automobile parts, and the like. Traditional dispensing is performed manually by a worker. With the rapid development of automation technology, the pure manual dispensing can not meet the industrial requirements. The pure manual dispensing has the defects of complex operation, low speed, low accuracy, easy error, incapability of carrying out complex graph operation, incapability of realizing production automation and the like.
However, most of the control switches of the conventional quantitative dispensing machine are electrically controlled, so that the conventional electronic control dispensing machine is severely limited in some special explosion-proof production workshops, and the accuracy and the working efficiency of dispensing are further reduced only by manual operation in the quantitative dispensing process of the explosion-proof production workshops, so that the dispensing machine without electric control and the control device thereof are urgently needed.
Disclosure of Invention
The utility model discloses shortcoming and not enough to exist among the prior art, the utility model provides an electroless control, accurate advance glue, the volume accuracy height is glued to the point, labour saving and time saving, satisfy the production demand is glued to the explosion-proof workshop point, the switching-over is undulant little, receive the pneumatic control of long service life to advance gluey linkage switching-over valve and controlling means.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a pneumatic control advances gluey linkage switching-over valve, it includes upper valve body, lower valve body and case, upper valve body and lower valve body seal fixed connection, and its middle intercommunication is equipped with the sealed gas circuit regulation chamber that matches with the case structure, one side of upper valve body is equipped with the air inlet that is linked together with sealed gas circuit regulation chamber, its opposite side is equipped with respectively from top to bottom and adjusts the first gas outlet and the second gas outlet that the chamber is linked together with sealed gas circuit;
an air cover communicated with the sealed air path adjusting cavity is further arranged on one side of the lower valve body, a first sealing piston is transversely arranged in the air cover, and the outer side of the first sealing piston is communicated with an air source; the limiting linkage clamping plate is positioned in the sealing gas path adjusting cavity and connected to the other side of the first sealing piston, and the limiting linkage clamping plate is adjustably clamped and fixed with and separated from the valve core through a side spring; the bottom of the sealed gas circuit adjusting cavity of the lower valve body is also fixedly provided with a vertical compression spring device which vertically penetrates through the limiting linkage clamping plate;
when the first sealing piston is extruded by the air source to move into the sealing air path adjusting cavity, the first sealing piston separates the limiting linkage clamping plate from the valve core by pushing the limiting linkage clamping plate and the side spring, at the moment, when the valve core is jacked up by the vertical compression spring device to rise to a set position, the first air outlet communicated with the sealing air path adjusting cavity is blocked by the valve core, and the air inlet is communicated with the second air outlet through the sealing air path adjusting cavity;
after the air source stops extruding the first sealing piston, the side spring resets to push the limiting linkage clamping plate to be clamped and fixed with the valve core again, and meanwhile, the first sealing piston is also reversely pushed to the original position.
Preferably, a button higher than the upper valve body is arranged at the top of the valve core, and a first sealing ring group hermetically connected with the top of the sealing gas path adjusting cavity is arranged at the upper part of the valve core; and a second sealing ring group which is hermetically connected with the inside of the valve core is also arranged in the sealing air path adjusting cavity positioned at the bottom of the upper valve body.
Preferably, a clamping groove clamped with the limiting linkage clamping plate is further formed in the valve core, located in the sealing air path adjusting cavity of the lower valve body and located at the lower portion of the second sealing ring group.
Preferably, the bottom of the valve core is also provided with a clamping part fixedly clamped with the vertical compression spring device.
Preferably, the middle part of the valve core is also respectively provided with a blocking part matched with the sealed air path adjusting cavity, after the valve core is pressed downwards, the limiting linkage clamping plate is clamped and fixed with the clamping groove through the extrusion of the side spring, at the moment, the second air outlet communicated with the sealed air path adjusting cavity is blocked by the valve core, and the air inlet is communicated with the first air outlet through the sealed air path adjusting cavity.
The outer side of a first sealing piston of the pneumatic control glue feeding linkage reversing valve is communicated with the high-pressure air source through a first pneumatic reversing valve and a pipeline.
Preferably, the pneumatic glue feeding device comprises a glue dispensing cylinder, a push rod device and a glue feeding pump, the piston in the glue dispensing cylinder body divides the interior of the glue dispensing cylinder body into a first inner cavity and a first outer cavity, the glue dispensing piston of the first outer cavity is connected with the push rod device, the first inner cavity and the first outer cavity are respectively connected with a second air outlet and a first air outlet of the pneumatic control glue feeding linkage reversing valve through pipelines, and the air path is used for adjusting the pressure difference between the first inner cavity and the first outer cavity to realize the movement of the push-pull push rod device and the glue dispensing piston.
Preferably, the pneumatic control device further comprises a second pneumatic reversing valve and a second induction cylinder which are connected with the high-pressure air source, the second induction cylinder comprises a second induction cylinder body, an induction push rod and a second piston, the second piston and the induction push rod divide the interior of the second induction cylinder into a second inner chamber and a second outer chamber, and two air outlets of the second pneumatic reversing valve are respectively communicated with the second inner chamber and the second outer chamber of the second induction cylinder through pipelines.
Preferably, one side of the second pneumatic reversing valve is also provided with a sensing limiting device which is connected with the push rod device of the pneumatic glue feeding device and is provided with an adjustable stroke, the second pneumatic reversing valve senses the back-and-forth movement distance of the push rod device of the pneumatic glue feeding device through the sensing limiting device, the glue outlet amount of the pump is controlled by controlling the length of the movement distance, meanwhile, the second inner cavity of the second sensing cylinder or the second outer cavity are communicated with the air inlet, and the air pressure in the second inner cavity of the second sensing cylinder and the air pressure in the second outer cavity are controlled, so that the front and back extension of the sensing push rod inside the second sensing cylinder are controlled.
Preferably, one side of the first pneumatic reversing valve is further provided with a reversing valve starting contact switch matched with the induction push rod of the second induction cylinder, and when the front end of the induction push rod of the second induction cylinder is in contact with the reversing valve starting contact switch on the first pneumatic reversing valve, the air outlet of the first pneumatic reversing valve is opened.
The utility model provides a pneumatic control advances gluey linkage switching-over valve and controlling means thereof. The method has the following beneficial effects:
(1) the utility model provides a pneumatic control advances gluey linkage switching-over valve and controlling means thereof, device simple structure is ingenious, uses this pneumatic control to advance gluey linkage switching-over valve, can realize that the switch is glued to no electric control point, satisfies the demand of gluing of explosion-proof workshop.
(2) The utility model provides a pneumatic control advances gluey linkage switching-over valve and controlling means thereof, whole control process once presses the action, can be in order to realize, the reciprocal of process is glued to injecting glue and ration point, operation labour saving and time saving is showing the point that improves explosion-proof workshop and is gluing work efficiency, and applicable scope is wide.
When the pump reciprocates in an instant, fluid in the pipeline can fluctuate to cause measurement instability, so that the time of the front-back expansion of the push rod is sensed, and the instant time delay effect generated when the pump reciprocates provides sufficient time for reversing the front-end valve, so that fluctuation generated in the pipeline at the instant of reversing the pump and impact force caused to the valve are reduced, the reversing fluctuation is small in the whole using process, and the service life is long.
Drawings
FIG. 1 is a schematic structural view of a pneumatic control glue-feeding linkage reversing valve of the present invention;
FIG. 2 is a schematic left side view of FIG. 1;
FIG. 3 is a schematic structural diagram of a top view of FIG. 1;
FIG. 4 is a schematic structural view of a cross-sectional view B-B of FIG. 1;
FIG. 5 is a schematic structural view of a cross-sectional view A-A of FIG. 3;
FIG. 6 is a schematic structural view of a cross-sectional view C-C in FIG. 3;
FIG. 7 is a schematic structural view of the perspective view of FIG. 1;
FIG. 8 is a schematic structural view of the valve cartridge of FIG. 1;
FIG. 9 is a schematic structural view of a cross-sectional view of the upper valve body of FIG. 5;
FIG. 10 is a schematic structural view of the position of the valve core in the sealed gas path adjusting cavity of the upper valve body during descending and ascending processes, respectively;
fig. 11 is a schematic diagram of a control device for a pneumatic control glue feeding linkage reversing valve according to the present invention.
In the figure: 1. the pneumatic glue dispensing valve comprises an upper valve body, a lower valve body, a valve core, a sealing air path adjusting cavity, a valve cover, a first sealing piston, a limiting linkage clamping plate, a side spring, a vertical compression spring device, a high-pressure air source, a pneumatic control glue feeding linkage reversing valve, a pneumatic control reversing valve, a first pneumatic reversing valve, a glue dispensing cylinder, a push rod device, a second pneumatic reversing valve, a second sensing cylinder, a sensing push rod, a sensing limiting device, a reversing valve starting contact switch, a glue feeding pump, a gas inlet, a gas outlet, a button, a first sealing ring set, a sealing groove, a clamping part and a blocking part, wherein the upper valve, the sealing piston, the limiting linkage clamping plate, the side spring, the vertical compression spring device, the high-pressure air source, the pneumatic control glue feeding linkage reversing valve, the pneumatic control contact switch, the glue feeding pump, the gas inlet, the gas outlet, and the gas outlet, and the gas outlet, and the gas.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the present invention, unless otherwise expressly stated or limited, the terms "connected" and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection, or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1-10, the present invention provides a technical solution:
as shown in fig. 1-10, the pneumatic control glue feeding linkage reversing valve provided by the utility model comprises an upper valve body 1, a lower valve body 2 and a valve core 3, wherein the upper valve body 1 and the lower valve body 2 are fixedly connected in a sealing way, and a sealing gas path adjusting cavity 4 matched with the valve core 3 in structure is arranged in the middle of the upper valve body 1, one side of the upper valve body 1 is provided with a gas inlet 101 communicated with the sealing gas path adjusting cavity 4, and the other side of the upper valve body is respectively provided with a first gas outlet 102 and a second gas outlet 103 communicated with the sealing gas path adjusting cavity 4 from top to bottom;
an air cover 5 communicated with the sealed air path adjusting cavity 4 is further arranged on one side of the lower valve body 2, a first sealing piston 6 is transversely arranged in the air cover 5, and the outer side of the first sealing piston 6 is communicated with an air source; the other side of the first sealing piston 6, which is positioned in the sealing gas path adjusting cavity 4, is connected with a limiting linkage clamping plate 7, and the limiting linkage clamping plate 7 is fixed and separated with the valve core 3 in an adjustable clamping manner through a side spring 8.
The bottom of the sealed air path adjusting cavity 4 of the lower valve body 2 is also fixedly provided with a vertical compression spring device 9 which vertically penetrates through the limit linkage clamping plate 7;
when the first sealing piston 6 is extruded by an air source to move into the sealing air path adjusting cavity 4, the first sealing piston 6 separates the limiting linkage clamping plate 7 from the valve core 3 by pushing the limiting linkage clamping plate 7 and the side spring 8, at the moment, the valve core 3 can be jacked up by the vertical compression spring device 9 to rise to a set position, the first air outlet 102 communicated with the sealing air path adjusting cavity 4 is blocked by the valve core 3, and the air inlet 101 is communicated with the second air outlet 103 through the sealing air path adjusting cavity 4;
after the air source stops extruding the first sealing piston 6, the side spring 8 resets to push the limiting linkage clamping plate 7 to be clamped and fixed with the valve core 3 again, and meanwhile, the first sealing piston 6 is also reversely pushed back to the original position.
A button 301 higher than the upper valve body 1 is arranged at the top of the valve core 3, and a first sealing ring group 302 connected with the top of the sealing gas path adjusting cavity 4 in a sealing manner is arranged at the upper part of the valve core 3; and a second sealing ring group 303 hermetically connected with the inside of the valve core 3 is also arranged in the sealing air path adjusting cavity 4 at the bottom of the upper valve body 1.
And a clamping groove 304 connected with a limiting linkage clamping plate card 7 is further formed in the valve core 3 positioned in the sealing air path adjusting cavity 4 of the lower valve body 2 and at the lower part of the second sealing ring group 303.
The bottom of the valve core 3 is also provided with a clamping part 305 fixedly clamped with the vertical compression spring device 9. The middle part of the valve core 3 is also respectively provided with a blocking part 306 matched with the sealed air path adjusting cavity 4, after the valve core 3 is pressed downwards, the limiting linkage clamping plate 7 is clamped and fixed with the clamping groove 304 through the extrusion of the side spring 8, at the moment, the second air outlet 103 communicated with the sealed air path adjusting cavity 4 is blocked by the valve core 3, and the air inlet 101 is communicated with the first air outlet 102 through the sealed air path adjusting cavity 4.
The utility model provides a pneumatic control advances gluey linkage switching-over valve, device simple structure is ingenious, uses this pneumatic control to advance gluey linkage switching-over valve, can realize that the switch is glued to no electric control point, satisfies the demand of gluing of explosion-proof workshop. Once press the action, can realize, the reciprocal of injecting glue and some processes of gluing, operation labour saving and time saving is showing the point that improves explosion-proof workshop and is glued work efficiency, and applicable wide range.
As shown in fig. 11, a control device for pneumatically controlling a glue feeding linkage reversing valve comprises a high-pressure air source 10, a pneumatic glue feeding device and a pneumatic control device, wherein the outer side of a first sealing piston 6 of the pneumatic control glue feeding linkage reversing valve 11 is communicated with the high-pressure air source 10 through a first pneumatic reversing valve 12 and a pipeline.
The pneumatic glue feeding device comprises a glue dispensing cylinder 13, a push rod device 14 and a glue feeding pump 20, a piston in a cylinder body of the glue dispensing cylinder 13 divides the interior of the cylinder body into a first inner cavity and a first outer cavity, a glue dispensing piston of the first outer cavity is connected with the push rod device 14, the first inner cavity and the first outer cavity are respectively connected with a second air outlet 103 and a first air outlet 102 of the pneumatic control glue feeding linkage reversing valve 11 through pipelines, and the push-pull push rod device 14 and the glue dispensing piston move by adjusting pressure difference in the inner cavity and the outer cavity through an air path.
The pneumatic control device further comprises a second pneumatic reversing valve 15 and a second induction cylinder 16 which are connected with the high-pressure air source 10, the second induction cylinder 16 comprises a second induction cylinder 16 cylinder body, an induction push rod 17 and a second piston, the second piston and the induction push rod 17 also divide the interior of the second induction cylinder 16 into a second inner chamber and a second outer chamber, and two air outlets of the second pneumatic reversing valve 15 are respectively communicated with the second inner chamber and the second outer chamber of the second induction cylinder 16 through pipelines.
An induction limiting device 18 capable of adjusting stroke is further arranged on one side of the second pneumatic reversing valve 15 and connected with and arranged between the push rod devices 14 of the pneumatic glue feeding device, the second pneumatic reversing valve 15 induces the back-and-forth movement distance of the push rod devices 14 of the pneumatic glue feeding device through the induction limiting device 18, the glue discharging amount of the glue feeding pump 20 is controlled by controlling the length of the movement distance, air is communicated into the second inner cavity or the second outer cavity of the second induction cylinder, air pressure in the second inner cavity and the second outer cavity of the second induction cylinder 16 is controlled, so that the back-and-forth expansion of the induction push rod 17 in the induction push rod 17 is controlled, when the pump reciprocates, fluid in a pipeline can fluctuate to cause metering instability, so that by inducing the back-and-forth expansion time of the push rod 17, a time delay effect is generated at the moment when the pump reciprocates to provide sufficient time for the reversing of the front end valve, thereby reducing fluctuation generated in the pipeline at the moment of pump reversing and impact on the valve The force is small, the reversing fluctuation is small in the whole using process, and the service life is long.
And a reversing valve starting contact switch 19 matched with the sensing push rod 17 of the second sensing cylinder 16 is further arranged on one side of the first pneumatic reversing valve 12, and when the front end of the sensing push rod 17 of the second sensing cylinder 16 is contacted with the reversing valve starting contact switch 19 on the first pneumatic reversing valve, the air outlet of the first pneumatic reversing valve 12 is opened.
The specific using process is as follows:
firstly, emptying, namely pumping the colloid into the colloid inlet pump 20, discharging the air in the colloid inlet pump, and after emptying is finished;
and (3) glue injection process: and opening the high-pressure air source 10, wherein a plurality of air paths are separated from the high-pressure air source 10, the first air path flows to the pneumatic control glue inlet linkage reversing valve 11, and the second air path and the third air path respectively flow to the second pneumatic reversing valve 15 and the first pneumatic reversing valve 12. And a pipeline between the first pneumatic reversing valve 12 at the third air path and the air cover 5 of the glue inlet linkage reversing valve 11 is in a closed state. A passage is arranged between the second outer chambers of the second pneumatic reversing valves 15 at the second air path, the second inner chambers and the second pneumatic reversing valves 15 are in a closed state and are communicated with the outer pipeline, and the second piston drives the induction push rod 17 to move towards the second inner chambers together.
A first air passage: the button 301 is pressed downwards, the valve core 3 moves downwards in the sealed air path adjusting cavity 4, the limiting linkage clamping plate 7 is clamped and fixed with a clamping groove 304 on the valve core 3 through the extrusion of a side spring 8, at the moment, a second air outlet 103 communicated with the sealed air path adjusting cavity 4 is blocked by the valve core 3, the air inlet 101 is communicated with a first air outlet 102 through the sealed air path adjusting cavity 4, high-pressure air flow of a high-pressure air source 10 enters a pneumatic control glue inlet linkage reversing valve 11 from the air inlet 101 and then flows out from the first air outlet 102 to enter a first outer cavity of a glue dispensing air cylinder 13, at the moment, the pressure in the first inner cavity is smaller than that in the first outer cavity, the push rod device 14 moves towards the first inner cavity along with a glue dispensing piston, and the process is to glue injection into a glue injection cavity of a glue injection pump 20;
and (3) dispensing: when the push rod device 14 moves to the rated glue inlet front position, the sensing limiting device 18 on the second pneumatic reversing valve 15 senses the glue inlet position of the push rod device 14 and then triggers the second pneumatic reversing valve 15 to turn, the second outer chamber of the second pneumatic reversing valve 15 in the second gas path is switched to be closed, the second inner chamber and the second pneumatic reversing valve 15 are switched to be open and are not communicated with the outer pipeline, the second piston drives the sensing push rod 17 to move together in the second outer chamber, the sensing push rod 17 is pushed out and then contacts with a reversing valve starting contact switch 19 on the first pneumatic reversing valve 12 to trigger turning, the pipeline between the first pneumatic reversing valve 12 and the gas cap 5 of the glue inlet linkage reversing valve 11 at the third gas path is opened, and the gas flow in the third gas path pushes the first sealing piston 6 to move to the sealing gas path adjusting cavity 4, the first sealing piston 6 separates the limiting linkage clamping plate 7 from the valve core 3 by pushing the limiting linkage clamping plate 7 and the side spring 8, at the moment, when the valve core 3 is jacked up by the vertical compression spring device 9 and rises to a set position, the first air outlet 102 communicated with the sealing air path adjusting cavity 4 is blocked by the valve core 3, and the air inlet 101 is communicated with the second air outlet 103 through the sealing air path adjusting cavity 4; the high-pressure air flow in the first air path flows out from the second air outlet 103 and enters the first inner cavity of the glue dispensing cylinder 13, at the moment, the pressure in the first inner cavity is greater than the pressure in the first outer cavity, the push rod device 14 moves towards the first outer cavity together with the glue dispensing piston, and therefore the quantitative glue feeding process of the glue feeding pump 20 is realized through the extrusion of the push rod device 14;
when the push rod device 14 moves to the rated glue discharging completion position, after the sensing limiting device 18 on the second pneumatic reversing valve 15 senses the rated glue discharging completion position of the push rod device 14, the second pneumatic reversing valve 15 is triggered to turn, the second outer chamber of the second pneumatic reversing valve 15 in the second air path is switched to be open, the second inner chamber and the second pneumatic reversing valve 15 are switched to be closed, the second piston drives the induction push rod 17 to move towards the second inner chamber together, the induction push rod 17 is separated from the reversing valve starting contact switch 19 on the first pneumatic reversing valve 12 to excite the reversing valve to turn, the pipeline between the first pneumatic reversing valve 12 at the third gas path and the gas cover 5 of the glue inlet linkage reversing valve 11 is closed, the side spring 8 resets to push the limiting linkage clamping plate 7 to be clamped and fixed with the valve core 3 again, and meanwhile, the first sealing piston 6 is also pushed back to the original position in the reverse direction; and waiting for the next time of pressing the button 301, and repeating the processes of glue injection and quantitative glue injection.
To sum up, the utility model provides a pneumatic control advances gluey linkage switching-over valve and controlling means thereof, and device simple structure is ingenious, uses this pneumatic control to advance gluey linkage switching-over valve, can realize that the switch is glued to no electric control point, satisfies the demand of gluing of explosion-proof workshop. Whole control process once presses the action, can realize, and the reciprocal of process is glued to injecting glue and ration point, and operation labour saving and time saving is showing the point that improves explosion-proof workshop and is glued work efficiency, and applicable wide range.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (10)
1. A pneumatic control glue feeding linkage reversing valve is characterized by comprising an upper valve body, a lower valve body and a valve core, wherein the upper valve body and the lower valve body are fixedly connected in a sealing mode, a sealing gas path adjusting cavity matched with the valve core in structure is arranged in the middle of the upper valve body in a communicating mode, a gas inlet communicated with the sealing gas path adjusting cavity is formed in one side of the upper valve body, and a first gas outlet and a second gas outlet which are communicated with the sealing gas path adjusting cavity are formed in the upper portion and the lower portion of the other side of the upper valve body respectively;
an air cover communicated with the sealed air path adjusting cavity is further arranged on one side of the lower valve body, a first sealing piston is transversely arranged in the air cover, and the outer side of the first sealing piston is communicated with an air source; a limiting linkage clamping plate is connected and arranged in the sealing gas path adjusting cavity and on the other side of the first sealing piston, and the limiting linkage clamping plate is adjustably clamped and fixed with the valve core through a side spring; the bottom of the sealed gas circuit adjusting cavity of the lower valve body is also fixedly provided with a vertical compression spring device which vertically penetrates through the limit linkage clamping plate;
when the first sealing piston is extruded by an air source to move into the sealing air path adjusting cavity, the first sealing piston separates the limiting linkage clamping plate from the valve core by pushing the limiting linkage clamping plate and the side spring, at the moment, when the valve core is jacked up by the vertical compression spring device to rise to a set position, a first air outlet communicated with the sealing air path adjusting cavity is blocked by the valve core, and the air inlet is communicated with a second air outlet through the sealing air path adjusting cavity;
and after the air source stops extruding the first sealing piston, the side spring resets to push the limiting linkage clamping plate to be clamped and fixed with the valve core again, and meanwhile, the first sealing piston is also reversely pushed back to the original position.
2. The pneumatic control glue feeding linkage reversing valve according to claim 1, characterized in that a button higher than the upper valve body is arranged on the top of the valve core, and a first sealing ring group hermetically connected with the top of the sealing gas path adjusting cavity is arranged on the upper part of the valve core; and a second sealing ring group which is positioned in the sealing gas path adjusting cavity at the bottom of the upper valve body and is hermetically connected with the inside of the valve core is also arranged on the valve core.
3. The pneumatic control glue feeding linkage reversing valve according to claim 2, wherein a clamping groove clamped with the limiting linkage clamping plate is further formed in the valve core, located in the sealing air path adjusting cavity of the lower valve body and at the lower portion of the second sealing ring group.
4. The pneumatic control glue feeding linkage reversing valve according to claim 3, characterized in that a clamping portion fixedly clamped with the vertical compression spring device is further arranged at the bottom of the valve core.
5. The pneumatic control glue feeding linkage reversing valve according to claim 3, wherein the middle part of the valve core is further provided with a blocking part matched with the sealed gas path adjusting cavity respectively, after the valve core is pressed downwards, the limiting linkage clamping plate is clamped and fixed with the clamping groove through the extrusion of the side spring, at the moment, a second gas outlet communicated with the sealed gas path adjusting cavity is blocked by the valve core, and the gas inlet is communicated with the first gas outlet through the sealed gas path adjusting cavity.
6. The control device of the pneumatic control glue feeding linkage reversing valve according to any one of claims 1 to 5, characterized by comprising a high-pressure air source, a pneumatic glue feeding device and a pneumatic control device, wherein the outer side of the first sealing piston of the pneumatic control glue feeding linkage reversing valve is communicated with the high-pressure air source through a first pneumatic reversing valve and a pipeline.
7. The control device of claim 6, wherein the pneumatic glue feeding device comprises a glue dispensing cylinder, a push rod device and a glue feeding pump, a glue dispensing piston in the glue dispensing cylinder divides the interior of the glue dispensing cylinder into a first inner cavity and a first outer cavity, a piston of the first outer cavity is connected with the push rod device, the first inner cavity and the first outer cavity are respectively connected with a second air outlet and a first air outlet of the pneumatic control glue feeding linkage reversing valve through pipelines, and pressure difference in the first inner cavity and the first outer cavity is adjusted through an air passage, so that the push rod device and the glue dispensing piston are pushed and pulled to move.
8. The control device of claim 6, further comprising a second pneumatic directional control valve and a second induction cylinder connected to the high-pressure air source, wherein the second induction cylinder comprises a second induction cylinder body, an induction push rod and a second piston, the second piston and the induction push rod also divide the interior of the second induction cylinder into a second inner chamber and a second outer chamber, and the two air outlets of the second pneumatic directional control valve are also respectively communicated with the inner chamber and the outer chamber of the second induction cylinder through pipelines.
9. The control device of claim 8, wherein an induction limiting device with an adjustable stroke is further connected between one side of the second pneumatic directional control valve and the push rod device of the pneumatic glue feeding device, the second pneumatic directional control valve induces the back-and-forth movement distance of the push rod device of the pneumatic glue feeding device through the induction limiting device, controls the glue outlet amount of the glue feeding pump by controlling the length of the movement distance, controls the air inlet communicated into the second inner chamber or the second outer chamber of the second induction cylinder, and controls the back-and-forth extension of the induction push rod therein by controlling the air pressure in the second inner chamber and the second outer chamber of the second induction cylinder.
10. The control device for the pneumatic control glue feeding linkage reversing valve according to claim 8, wherein a reversing valve starting contact switch matched with the sensing push rod of the second sensing cylinder is further arranged on one side of the first pneumatic reversing valve, and when the front end of the sensing push rod of the second sensing cylinder is in contact with the reversing valve starting contact switch on the first pneumatic reversing valve, the air outlet of the first pneumatic reversing valve is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022907350.XU CN213745056U (en) | 2020-12-07 | 2020-12-07 | Pneumatic control glue feeding linkage reversing valve and control device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022907350.XU CN213745056U (en) | 2020-12-07 | 2020-12-07 | Pneumatic control glue feeding linkage reversing valve and control device thereof |
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| Publication Number | Publication Date |
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| CN213745056U true CN213745056U (en) | 2021-07-20 |
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| CN202022907350.XU Active CN213745056U (en) | 2020-12-07 | 2020-12-07 | Pneumatic control glue feeding linkage reversing valve and control device thereof |
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| CN (1) | CN213745056U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113958727A (en) * | 2021-12-21 | 2022-01-21 | 中国航空油料有限责任公司成都分公司 | Aviation oil filling ground well oil plug control valve |
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2020
- 2020-12-07 CN CN202022907350.XU patent/CN213745056U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113958727A (en) * | 2021-12-21 | 2022-01-21 | 中国航空油料有限责任公司成都分公司 | Aviation oil filling ground well oil plug control valve |
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