CN214077532U - Suck-back dispensing valve - Google Patents
Suck-back dispensing valve Download PDFInfo
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- CN214077532U CN214077532U CN202020925978.XU CN202020925978U CN214077532U CN 214077532 U CN214077532 U CN 214077532U CN 202020925978 U CN202020925978 U CN 202020925978U CN 214077532 U CN214077532 U CN 214077532U
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- pressure guide
- guide post
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Abstract
The utility model discloses a resorption formula dispensing valve, including atmospheric pressure guide pillar lid and piston cylinder, the upper surface fixed mounting of piston cylinder, the lower fixed mounting of piston cylinder has into the glue valve, the lower fixed mounting of advancing the glue valve has out the packing element, the lower fixed mounting of going out the packing element has syringe needle fixed protective sheath; the middle part of the lower surface of the air pressure guide post cover is fixedly provided with a first air pressure guide post positioned in the middle, the surface of the first air pressure guide post is fixedly provided with a second air pressure guide post, and a guide post sealing ring is arranged between the first air pressure guide post and the second air pressure guide post; the utility model discloses in through the spring that sets up, can make the piston rod promote the back and utilize the elasticity of spring to move backward, make the point gum valve resorption, avoid out the inside glue solution water clock of packing element, can improve the leakproofness of point gum valve through the piston cylinder sealing washer that sets up, play packing element sealing washer, admission valve sealing washer, avoid admission valve, piston cylinder, play packing element gas leakage.
Description
Technical Field
The utility model relates to a dispensing valve technical field especially relates to a resorption formula dispensing valve.
Background
The dispensing valve is formed by connecting an air cylinder, a valve body and a material cylinder up and down, and the air cylinder and the valve body are separated by advanced sealing materials, so that the glue is prevented from invading the air cylinder. The material cylinder and the air cylinder are connected to the dispensing valve main body and ensure concentricity with the air cylinder. And the solenoid valve pneumatic cylinder moves to drive the central rod to move up and down, and the up-and-down movement of the central rod is utilized to achieve the opening and closing effects on the glue. According to different ways of turning on and off, the method is divided into: a plunger type glue dispensing valve, a thimble type glue dispensing valve, a lifting type glue dispensing valve, a spraying glue dispensing valve and a spraying glue dispensing valve; the back suction type dispensing valve adopts an upward movement glue closing structure, so that glue is instantly sucked and broken when glue is stopped, the residual glue on the remaining needle head is reduced, and the phenomena of leakage, dripping, wire drawing and the like are avoided during dispensing. The rubber valve body is subjected to aluminum alloy anodic oxidation treatment, the sealing material is made of the latest tetrafluoro material, and the contact colloid part is made of corrosion-resistant material.
Patent document (CN203648792U) discloses a high precision dispensing valve. The high-precision dispensing valve comprises a bottom plate, a motor, a pump, a rotating device, a cavity and a piston, wherein the motor and the pump are respectively fixed on one side of the bottom plate, the rotating device is fixed on the other side of the bottom plate and is fixedly connected with the pump, a rotatable valve core is arranged in the pump, and the rotating device drives the valve core to rotate and controls the valve switch of the dispensing valve; the cavity is fixed above the pump, the piston is positioned between the motor and the cavity, and the piston is driven to move up and down by the rotation of the motor; the utility model is convenient to disassemble, assemble and maintain, has strong applicability and is beneficial to reducing the cost; however, the dispensing valve cannot suck back the glue solution in the valve, and after dispensing, the glue is easy to drip, and the sealing performance of the dispensing valve is not good.
SUMMERY OF THE UTILITY MODEL
The utility model provides a resorption formula dispensing valve mainly solves following technical problem:
the utility model discloses in use through the cooperation of gim peg, first keyhole, connection spiral shell head, second keyhole, screw, the both ends of dismantlement axis body that can be quick, the person of facilitating the use changes first connecting axle and second connecting axle, avoids the axis body to damage, can improve the wearability of flywheel shaft through setting up first bearing, second bearing, wear ring, and first bearing, second bearing rotate the smoothness in addition, alleviate the degree of wearing and tearing.
The purpose of the utility model can be realized by the following technical scheme:
a resorption formula dispensing valve comprises a piston cylinder, wherein the upper surface of the piston cylinder is fixedly installed, the lower surface of the piston cylinder is fixedly installed with a glue inlet valve, the lower surface of the glue inlet valve is fixedly installed with a glue outlet cylinder, and the lower surface of the glue outlet cylinder is fixedly installed with a needle head fixing protective sleeve;
the lower surface middle part fixed mounting of atmospheric pressure guide pillar lid has the first atmospheric pressure guide post that is arranged in, the fixed surface of first atmospheric pressure guide post installs the second atmospheric pressure guide post, be provided with the guide pillar sealing washer between first atmospheric pressure guide post and the second atmospheric pressure guide post, the lower fixed surface of second atmospheric pressure guide post installs the piston rod that is arranged in the piston cylinder and advances the gluey valve, the circular arc side of piston rod has cup jointed the piston that is close to the second atmospheric pressure guide post, the lower extreme fixed mounting of piston has the spring.
Furthermore, a raised head is arranged in the middle of the lower end of the piston cylinder and is inserted into the glue inlet valve.
Further, the diameter of the spring is smaller than that of the nose.
Furthermore, the circular arc side of piston rod fixedly mounted has the piston cylinder sealing washer that is arranged in advancing the gluey valve, the circular arc side fixed mounting of piston rod has the play packing element sealing washer that is arranged in the syringe needle fixed protective sheath.
Furthermore, an air pressure guide post cover is fixedly arranged on the upper surface.
Furthermore, a needle is fixedly arranged on the lower surface of the needle fixing protective sleeve.
Further, the circular arc inner wall of the piston cylinder is fixedly provided with an air inlet valve sealing ring, and the circular arc inner wall of the piston cylinder is fixedly provided with a piston sealing ring close to the lower part of the air inlet valve sealing ring.
The utility model has the advantages that:
the utility model discloses in through the spring that sets up, can make the piston rod promote the back and move backward utilizing the elasticity of spring, make the dispensing valve suck back, avoid going out the glue solution water clock inside the packing element, the admission valve is opened, the outside gas enters the dispensing valve, the piston motion on the piston rod is promoted to the atmospheric pressure that produces, promote the gas to the piston cylinder, advance in the glue valve, open into the glue valve, make the glue solution flow from going out the packing element and discharge to the syringe needle, the spring supports and advances the glue valve and contracts, drive the piston and move up, make the dispensing valve suck back;
the sealing performance of the dispensing valve can be improved through the arranged piston cylinder sealing ring, the glue outlet cylinder sealing ring and the air inlet valve sealing ring, and air leakage of the air inlet valve, the piston cylinder and the glue outlet cylinder is avoided.
Drawings
The present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a suck-back dispensing valve of the present invention;
FIG. 2 is a front sectional view of the present invention;
fig. 3 is an internal view of the air inlet valve, the piston cylinder, the glue inlet valve and the glue outlet cylinder of the present invention.
In the figure: 1. a pneumatic guide pillar cover; 2. an intake valve; 3. a piston cylinder; 4. a glue inlet valve; 5. discharging the rubber cylinder; 6. a needle head fixing protective sleeve; 7. a needle head; 8. a piston rod; 9. a piston cylinder seal ring; 10. discharging a rubber cylinder sealing ring; 11. a first pneumatic guide post; 12. a guide pillar sealing ring; 13. a second pneumatic guide post; 14. a piston; 15. an air inlet valve seal ring; 16. a piston seal ring; 17. a spring.
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. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-3, a resorption formula dispensing valve includes a piston cylinder 3, an air inlet valve 2 is fixedly installed on the upper surface of the piston cylinder 3, a glue inlet valve 4 is fixedly installed on the lower surface of the piston cylinder 3, a glue outlet cylinder 5 is fixedly installed on the lower surface of the glue inlet valve 4, and a needle head fixing protective sleeve 6 is fixedly installed on the lower surface of the glue outlet cylinder 5;
the lower surface middle part fixed mounting of atmospheric pressure guide pillar lid 1 has the first atmospheric pressure guide post 11 that is arranged in admission valve 2, the fixed surface of first atmospheric pressure guide post 11 installs second atmospheric pressure guide post 13, be provided with guide pillar sealing washer 12 between first atmospheric pressure guide post 11 and the second atmospheric pressure guide post 13, the lower fixed surface of second atmospheric pressure guide post 13 installs the piston rod 8 that is arranged in piston cylinder 3 and advance gluey valve 4, the circular arc side of piston rod 8 has cup jointed the piston 14 that is close to second atmospheric pressure guide post 13, the lower extreme fixed mounting of piston 14 has spring 17.
And a raised head is arranged in the middle of the lower end of the piston cylinder 3 and is inserted into the glue inlet valve 4.
The diameter of the spring 17 is smaller than the diameter of the nose.
The circular arc side of the piston rod 8 is fixedly provided with a piston cylinder sealing ring 9 positioned in the glue inlet valve 4, and the circular arc side of the piston rod 8 is fixedly provided with a glue outlet cylinder sealing ring 10 positioned in the needle head fixing and protecting sleeve 6.
And the upper surface of the air inlet valve 2 is fixedly provided with an air pressure guide post cover 1.
The lower surface of the needle fixing protective sleeve 6 is fixedly provided with a needle 7.
An air inlet valve sealing ring 15 is fixedly mounted on the circular inner wall of the piston cylinder 3, and a piston sealing ring 16 is fixedly mounted below the circular inner wall of the piston cylinder 3, which is close to the air inlet valve sealing ring 15.
The utility model discloses a theory of operation does:
the utility model discloses when using, admission valve 2 opens, outside gaseous entry point glues the valve, the atmospheric pressure of production promotes the piston 14 motion on the piston rod 8, with gaseous piston cylinder 3 that promotes, advance in gluey valve 4, open into gluey valve 4, make the glue solution follow 5 flow direction syringe needles 7 of play packing element and discharge, spring 17 supports to advance gluey valve 4 and contracts, it moves up to drive piston 14, make the point gum valve resorption, piston cylinder sealing washer 9 through the setting, go out packing element sealing washer 10, admission valve sealing washer 15 can improve the leakproofness of point gum valve, avoid admission valve 2, piston cylinder 3, go out packing element 5 gas leakage.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description in any form, and although the present invention has been disclosed with reference to the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make modifications or changes equivalent to the equivalent embodiment of the above embodiments without departing from the scope of the present invention.
Claims (7)
1. The resorption formula dispensing valve is characterized by comprising a piston cylinder (3) and an air pressure guide post cover (1), wherein an air inlet valve (2) is fixedly arranged on the upper surface of the piston cylinder (3), a glue inlet valve (4) is fixedly arranged on the lower surface of the piston cylinder (3), a glue outlet cylinder (5) is fixedly arranged on the lower surface of the glue inlet valve (4), and a needle head fixing protective sleeve (6) is fixedly arranged on the lower surface of the glue outlet cylinder (5);
the lower surface middle part fixed mounting of atmospheric pressure guide pillar lid (1) has first atmospheric pressure guide post (11) that is arranged in admission valve (2), the fixed surface of first atmospheric pressure guide post (11) installs second atmospheric pressure guide post (13), be provided with guide pillar sealing washer (12) between first atmospheric pressure guide post (11) and second atmospheric pressure guide post (13), the lower fixed surface of second atmospheric pressure guide post (13) installs piston rod (8) that are arranged in piston cylinder (3) and advance gluey valve (4), the circular arc side of piston rod (8) has cup jointed piston (14) that are close to second atmospheric pressure guide post (13), the lower extreme fixed mounting of piston (14) has spring (17).
2. The suck-back dispensing valve as claimed in claim 1, wherein a raised head is arranged in the middle of the lower end of the piston cylinder (3), and the raised head is inserted into the dispensing valve (4).
3. A suck-back dispensing valve according to claim 1 or 2, wherein the diameter of the spring (17) is smaller than the diameter of the nose.
4. The resorption type dispensing valve according to claim 1, wherein the circular arc side of the piston rod (8) is fixedly provided with a piston cylinder sealing ring (9) positioned in the glue inlet valve (4), and the circular arc side of the piston rod (8) is fixedly provided with a glue outlet cylinder sealing ring (10) positioned in the needle head fixing protective sleeve (6).
5. The suck-back dispensing valve according to claim 1, wherein the upper surface of the air inlet valve (2) is fixedly provided with an air pressure guide pillar cover (1).
6. A suck-back dispensing valve according to claim 1, wherein the needle (7) is fixedly mounted on the lower surface of the needle-fixing protective sheath (6).
7. The resorption type dispensing valve according to claim 1, wherein the circular inner wall of the piston cylinder (3) is fixedly provided with an air inlet valve sealing ring (15), and the circular inner wall of the piston cylinder (3) is fixedly provided with a piston sealing ring (16) close to the lower part of the air inlet valve sealing ring (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020925978.XU CN214077532U (en) | 2020-05-28 | 2020-05-28 | Suck-back dispensing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020925978.XU CN214077532U (en) | 2020-05-28 | 2020-05-28 | Suck-back dispensing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214077532U true CN214077532U (en) | 2021-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020925978.XU Active CN214077532U (en) | 2020-05-28 | 2020-05-28 | Suck-back dispensing valve |
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| Country | Link |
|---|---|
| CN (1) | CN214077532U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113926649A (en) * | 2021-10-22 | 2022-01-14 | 陈王强 | Suck-back dispensing valve for dispensing machine |
-
2020
- 2020-05-28 CN CN202020925978.XU patent/CN214077532U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113926649A (en) * | 2021-10-22 | 2022-01-14 | 陈王强 | Suck-back dispensing valve for dispensing machine |
| CN113926649B (en) * | 2021-10-22 | 2022-09-06 | 中山市普隆半导体设备有限公司 | Suck-back dispensing valve for dispensing machine |
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