CN211802044U - Glue applying valve - Google Patents
Glue applying valve Download PDFInfo
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- CN211802044U CN211802044U CN201922022692.0U CN201922022692U CN211802044U CN 211802044 U CN211802044 U CN 211802044U CN 201922022692 U CN201922022692 U CN 201922022692U CN 211802044 U CN211802044 U CN 211802044U
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- telescopic rod
- valve body
- opening
- sealing element
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Abstract
The application discloses a glue valve, which comprises a valve body and a driving cylinder, wherein the valve body comprises a glue inlet, a glue outlet and a glue pushing port which are communicated with each other, a telescopic rod of the driving cylinder extends to the glue outlet through the glue pushing port, and one side of the telescopic rod, which is close to the glue outlet, is provided with a plug which is used for sealing the glue outlet when the telescopic rod moves to a preset position; and a sealing element is arranged between the telescopic rod and the glue pushing port, and the sealing element releases the movement stroke of the telescopic rod through self deformation. The technical scheme disclosed by the application avoids the friction between the sealing element and the valve body in the related technology, and avoids the risk of performance reduction and even scrapping of the gluing valve caused by sealing failure; meanwhile, the sealing element can deform per se to eliminate the influence caused by the dimensional tolerance of each part, so that the product cost can be reduced, and the popularization is facilitated.
Description
Technical Field
The application relates to the field of manufacturing equipment, in particular to a glue valve.
Background
In production and life, a corresponding valve body is often required to extrude glue to facilitate bonding. A common glue valve is sealed with an O-ring. For example, in the field of lamp manufacturing, common glue-dispensing valve glue enters from a copper elbow, the glue opening and closing is controlled by the up-and-down action of the air cylinder, when the air cylinder is pushed out, the plug is opened, the glue is dispensed from the glue outlet, when the air cylinder is retracted, the plug is closed, and the glue outlet does not dispense glue any more.
The inventor finds that in an industrial production environment, due to the fact that the daily use frequency is high, after the O-shaped ring rubs with the central shaft, the O-shaped ring is abraded, the sealing performance is poor, and glue leakage is caused. Glue can enter into the cylinder from above under the pressure of advancing gluey, causes the cylinder working property to descend, and serious can lead to the cylinder directly to scrap, seriously influences life.
Meanwhile, the gluing valve in the related art is sealed through the O-shaped ring, so that the precision requirement on part processing is high, and the manufacturing cost is high.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the application discloses a glue-applying valve which comprises a valve body and a driving cylinder, wherein the valve body comprises a glue inlet, a glue outlet and a glue pushing port which are communicated with each other, a telescopic rod of the driving cylinder extends to the glue outlet through the glue pushing port, and one side, close to the glue outlet, of the telescopic rod is provided with a plug which is used for sealing the glue outlet when the telescopic rod moves to a preset position;
and a sealing element is arranged between the telescopic rod and the glue pushing port, and the sealing element releases the movement stroke of the telescopic rod through self deformation.
Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.
Optionally, the cross section of the sealing element in the movement direction of the telescopic rod is U-shaped, two sides of the U-shaped opening of the sealing element are turned outwards and overlapped on the glue pushing port, the U-shaped bottom of the sealing element is inserted into the valve body, and the telescopic rod penetrates through the U-shaped bottom of the sealing element and is in sealing fit with the U-shaped bottom of the sealing element; the seal is capable of changing the depth of the U-shape of the seal when deformed upon itself.
Optionally, the telescopic rod is provided with a mounting seat, the cross section of the mounting seat in the moving direction of the telescopic rod is C-shaped, the opening of the mounting seat faces away from the glue outlet, and the U-shaped bottom of the sealing element is accommodated in the mounting seat.
Optionally, the glue pushing port is provided with a pressing plate, and the glue pushing port and the pressing plate clamp the U-shaped opening of the sealing element.
Optionally, the sealing element is wholly cylindrical and is divided into:
the opening section is arranged on the glue pushing opening;
the closing section extends into the valve body and is connected with the telescopic rod in a sealing mode;
and the corrugated section is arranged between the opening section and the closing section and is folded back and forth to release the motion stroke of the telescopic rod.
Optionally, the valve body is wholly cylindrical, the glue outlet and the glue pushing port are respectively arranged at two ends of the valve body, the glue inlet is arranged on the side wall of the valve body, and the inner diameter of the valve body is larger than or equal to the outer diameter of the folded corrugated section.
Optionally, the telescopic rod is provided with an installation seat, the cross section of the installation seat in the motion direction of the telescopic rod is C-shaped, the opening of the installation seat faces away from the glue outlet, and the closed section is accommodated in the installation seat; the glue pushing opening is provided with a pressing plate, and the glue pushing opening and the pressing plate clamp the opening section.
Optionally, the telescopic rod includes in the direction of motion:
the piston rod is fixedly connected with the piston of the driving cylinder and extends towards the valve body;
the glue applying rod is movably matched in the valve body and penetrates through the glue outlet and the glue pushing port;
and the length adjusting mechanism is arranged between the piston rod and the glue beating rod and is used for adjusting the distance between the piston rod and the glue beating rod in the motion direction of the telescopic rod.
Optionally, the length adjustment mechanism includes:
one end of the threaded piece is in threaded fit with the lower end of the piston rod, and the other end of the threaded piece is in rotating fit with the upper end of the gluing rod;
and the positioning piece is screwed at the lower end of the piston rod and is abutted against the threaded piece to keep the position of the threaded piece.
Optionally, the glue dispensing valve further comprises a glue guiding opening arranged on the outer side of the glue outlet, the glue guiding opening and the valve body surround to form a glue outlet area, the glue dispensing rod extends to the glue outlet area, and the plug is arranged on the glue dispensing rod located in the glue outlet area.
According to the technical scheme disclosed by the application, through redesigning the sealing element, friction between the sealing element and the valve body in the related technology is avoided, and abrasion of the sealing element is avoided, so that the service life of the sealing element is prolonged, and the risk of performance reduction and even scrapping of the gluing valve caused by sealing failure is avoided; simultaneously, because the influence that each part dimensional tolerance brought can be eliminated in sealing member self deformation, consequently the technical scheme of this application can reduce the size precision requirement to beating the gluey valve part under the prerequisite of guaranteeing the result of use, reduces product cost, facilitate promotion.
Specific advantageous technical effects will be further explained in conjunction with specific structures or steps in the detailed description.
Drawings
FIG. 1 is a schematic view of an exemplary glue dispensing valve;
fig. 2 is an internal structure view of the glue dispensing valve in fig. 1.
The reference numerals in the figures are illustrated as follows:
1. a valve body; 11. a glue inlet; 12. a glue outlet; 13. pushing the glue opening; 14. pressing a plate;
2. a driving cylinder; 21. a telescopic rod; 211. a piston rod; 212. gluing a rod; 22. a plug; 23. a mounting seat; 24. a piston; 25. a length adjustment mechanism; 251. a threaded member; 252. a positioning member;
3. a seal member; 31. an opening section; 32. a corrugated section; 33. a closing section;
4. a glue guiding opening; 41. and (6) a glue outlet area.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The application discloses a glue dispensing valve, which comprises a valve body 1 and a driving cylinder 2, wherein the valve body 1 comprises a glue inlet 11, a glue outlet 12 and a glue pushing port 13 which are communicated with each other, a telescopic rod 21 of the driving cylinder 2 extends to the glue outlet 12 through the glue pushing port 13, a plug 22 is arranged on one side of the telescopic rod 21 close to the glue outlet 12, and the plug 22 is used for sealing the glue outlet 12 when the telescopic rod 21 moves to a preset position;
and a sealing element 3 is arranged between the telescopic rod 21 and the glue pushing port 13, and the sealing element 3 releases the movement stroke of the telescopic rod 21 through self deformation.
The sealing element 3 is used for restraining colloid delivered by the gluing valve from being kept in the valve body 1. The working load of the sealing element 3 is greater under the pressure of the glue itself. Meanwhile, in the related art, the sealing member 3 is often formed in a friction seal manner in order to release the operation of the telescopic rod 21. In a high-load working environment, the seal 3 is easily worn. The wear of the seal 3 may cause a reduction in the sealing performance and thus a leakage of glue. In the present application, the sealing element 3 releases the movement stroke of the telescopic rod 21 by self-deformation, avoiding the wear caused by the movement of the telescopic rod 21. Therefore, the service life of the sealing element 3 can be effectively prolonged, and the overall service life and stability of the glue valve can be improved.
Specifically, in the design of the sealing element 3, in an embodiment, the cross section of the sealing element 3 in the movement direction of the telescopic rod 21 is U-shaped, two sides of the U-shaped opening of the sealing element 3 are turned outwards and overlapped on the glue pushing port 13, the U-shaped bottom of the sealing element 3 is inserted into the valve body 1, and the telescopic rod 21 penetrates through the U-shaped bottom of the sealing element 3 and is in sealing fit with the U-shaped bottom; the seal 3 is able to change the depth of the U-shape of the seal 3 when it deforms itself.
The two sides of the U-shaped opening of the sealing element 3 are outwards turned and are overlapped on the glue pushing opening 13, so that the contact area between the sealing element 3 and the glue pushing opening 13 can be increased, and the sealing effect between the sealing element 3 and the valve body 1 is improved. When the sealing member 3 releases the movement stroke of the telescopic rod 21, the depth of the U shape of the sealing member 3 changes. In a practical alternative, the variation of the depth of the U-shape of the sealing member 3 may be achieved by deformation or folding of the material itself.
In the installation relation of the lower end of the sealing member 3, in one embodiment, the telescopic rod 21 is provided with an installation seat 23, the section of the installation seat 23 in the moving direction of the telescopic rod 21 is C-shaped, the opening of the installation seat 23 faces away from the glue outlet 12, and the U-shaped bottom of the sealing member 3 is accommodated in the installation seat 23.
The mounting 23 enables a sealing engagement with the sealing element 3 and drives the sealing element 3 when the telescopic rod 21 is moved. The mounting seat 23 accommodates a part of the sealing member 3, so that the colloid can be prevented from directly acting on the matching area of the telescopic rod 21 of the sealing member 3 under pressure, and the sealing stability is further improved.
In the mounting relationship of the upper end of the sealing member 3, in one embodiment, the glue pushing opening 13 is provided with a pressing plate 14, and the glue pushing opening 13 and the pressing plate 14 clamp the U-shaped opening of the sealing member 3.
The glue may generate a driving force to the sealing member 3 under its own pressure, resulting in peeling of the sealing member 3 and the valve body 1. The setting of apron can guarantee that the installation of sealing member 3 is firm simultaneously can also to sealing member 3 with push away and glue producing pressure between the mouth 13, improve sealed effect.
The packing 3 is spatially, in one embodiment, the packing 3 is entirely cylindrical and is divided into:
an opening section 31 installed on the glue pushing port 13;
the closing section 33 extends into the valve body 1 and is connected with the telescopic rod 21 in a sealing way;
and a corrugated section 32 disposed between the opening section 31 and the closing section 33, the corrugated section 32 being folded back and forth on itself to release the movement stroke of the telescopic bar 21.
The bellows section 32 can be folded by its material to change the length of the sealing element 3 in the direction of movement of the telescopic rod 21, so that a good sealing effect is always ensured during the movement of the telescopic rod 21. Compared with the technical scheme of realizing length change by material deformation, the working process of the corrugated section 32 is more stable, the required driving force is smaller, the service life is longer, and the condition that the deformation capacity of the material is reduced after long-term use is not easy to occur. For better reciprocating folding effect, the preset crease of the corrugated section 32 can influence the folding and unfolding processes of the corrugated section 32, and the working stability of the sealing element 3 and the gluing valve is improved.
In the space fit relation between the sealing member 3 and the valve body 1, in an embodiment, the valve body 1 is integrally cylindrical, the glue outlet 12 and the glue pushing outlet 13 are respectively arranged at two ends of the valve body 1, the glue inlet 11 is arranged on a side wall of the valve body 1, and the inner diameter of the valve body 1 is greater than or equal to the outer diameter of the folded corrugated section 32.
The arrangement in which the inner diameter of the valve body 1 is equal to or larger than the outer diameter of the folded bellows 32 can avoid friction between the valve body 1 and the seal member 3. In industrial production, the telescopic link 21 has higher motion frequency, and the service life of the sealing element 3 can be effectively prolonged after the friction between the valve body 1 and the sealing element 3 is avoided.
In one embodiment, the telescopic rod 21 is provided with a mounting seat 23, the cross section of the mounting seat 23 in the moving direction of the telescopic rod 21 is C-shaped, the opening of the mounting seat 23 faces away from the glue outlet 12, and the closed section 33 is accommodated in the mounting seat 23; the glue pushing opening 13 is provided with a pressing plate 14, and the glue pushing opening 13 and the pressing plate 14 clamp the opening section 31.
The design principle and technical effect of the mounting seat 23 and the pressing plate 14 in the present embodiment are the same as those described above, and are not described herein again.
In a specific arrangement of the telescopic rod 21, in an embodiment, the telescopic rod 21 comprises, in the direction of movement:
a piston rod 211 fixedly connected to the piston 24 of the drive cylinder 2 and extending toward the valve body 1;
the glue applying rod 212 is movably matched in the valve body 1 and penetrates through the glue outlet 12 and the glue pushing port 13;
and the length adjusting mechanism 25 is arranged between the piston rod 211 and the gluing rod 212 and is used for adjusting the distance between the piston rod 211 and the gluing rod 212 in the movement direction of the telescopic rod 21.
The length adjusting mechanism can adjust the distance between the piston rod 211 and the gluing rod 212. In the using process of a product, the movement stroke of the driving cylinder 2 is determined, meanwhile, the mutual matching of the plug 22 and the glue outlet 12 is required when the valve body 1 is sealed, and the relative position of the plug 22 and the glue outlet 12 is determined by the glue beating rod 212. Over the course of prolonged use, the dimensions of the plug 22 may change, for example, wear of components may occur; resulting in increased size, etc., when, for example, glue adheres to the plug 22. Therefore, the valve body 1 may not be tightly sealed or the sealing torque may be too large. Therefore, the length adjusting mechanism is necessary, the matching distance is convenient to adjust, the working stability of the glue valve can be improved, and the service life of the whole glue valve is effectively prolonged.
Specifically, in one embodiment, the length adjustment mechanism 25 includes:
a screw 251, one end of which is in threaded fit with the lower end of the piston rod 211, and the other end of which is in rotational fit with the upper end of the gluing rod 212;
and a positioning member 252 screwed on the lower end of the piston rod 211 and maintaining the position of the screw member 251 by abutting against the screw member 251.
The screw 251 can rotate by matching with the glue applying rod 212 in a rotating manner, and the movement in the movement direction of the telescopic rod 21 can be realized by the screw thread of the piston rod 211 in the rotating process, so that the glue applying rod 212 is pulled or pushed to move relative to the screw 251 in the movement direction of the telescopic rod 21, and the distance between the piston rod 211 and the glue applying rod 212 in the movement direction of the telescopic rod 21 is adjusted. Accordingly, in order to determine the distance between the piston rod 211 and the glue applying rod 212 in the moving direction of the telescopic rod 21, the positioning member 252 can position the screw 251 against the screw 251.
In the specific arrangement of glue discharging, in an embodiment, the glue discharging valve further includes a glue guiding opening 4 installed outside the glue discharging opening 12, the glue guiding opening 4 and the valve body 1 surround to form a glue discharging area 41, the glue discharging rod 212 extends to the glue discharging area 41, and the plug 22 is installed on the glue discharging rod 212 located in the glue discharging area 41.
The glue outlet area 41 can effectively protect the part of the glue applying rod 212 extending to the outside of the glue outlet 12, so that the damage of the glue applying valve caused by the contact of the plug 22 or the glue applying rod 212 and a workpiece to be glued is avoided.
When the glue injection valve is in use, glue enters the valve body 1 from the glue inlet 11 under the self-conveying pressure, the plug 22 abuts against the glue outlet 12 to seal the valve body 1 when the driving cylinder 2 is in a retracted state, and glue does not flow out of the glue injection valve. When the driving cylinder 2 moves, the telescopic rod 21 moves downwards, the plug 22 is separated from the glue outlet 12, and the glue flows out of the valve body 1 to realize glue beating operation. In the process, the sealing element 3 can ensure the sealing of the glue pushing opening 13 and prevent the glue from leaving the valve body 1 from the glue pushing opening 13.
It is worth noting that, even if the sealing element 3 fails, the colloid only overflows the valve body 1 and does not enter the driving cylinder 2, and compared with the technical solutions disclosed in the related art, the service life of the glue valve can be effectively prolonged.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. When technical features in different embodiments are represented in the same drawing, it can be seen that the drawing also discloses a combination of the embodiments concerned.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application.
Claims (10)
1. The glue applying valve comprises a valve body and a driving cylinder, and is characterized in that the valve body comprises a glue inlet, a glue outlet and a glue pushing port which are communicated with each other, a telescopic rod of the driving cylinder extends to the glue outlet through the glue pushing port, and one side of the telescopic rod, which is close to the glue outlet, is provided with a plug which is used for sealing the glue outlet when the telescopic rod moves to a preset position;
and a sealing element is arranged between the telescopic rod and the glue pushing port, and the sealing element releases the movement stroke of the telescopic rod through self deformation.
2. The dispensing valve according to claim 1, wherein the cross section of the sealing element in the moving direction of the telescopic rod is U-shaped, the U-shaped opening of the sealing element is turned outwards on two sides and is overlapped on the glue pushing opening, the U-shaped bottom of the sealing element is inserted into the valve body, and the telescopic rod penetrates through the U-shaped bottom of the sealing element and is in sealing fit with the U-shaped bottom of the sealing element; the seal is capable of changing the depth of the U-shape of the seal when deformed upon itself.
3. The gluing valve of claim 2, wherein the telescopic rod is provided with a mounting seat, the mounting seat has a C-shaped section in the moving direction of the telescopic rod, an opening of the mounting seat faces away from the glue outlet, and a U-shaped bottom of the sealing member is accommodated in the mounting seat.
4. The gluing valve of claim 2, wherein the glue pushing port is provided with a pressing plate, and the glue pushing port and the pressing plate clamp the U-shaped opening of the sealing member.
5. The gluing valve of claim 1, wherein the sealing element is cylindrical and is divided into:
the opening section is arranged on the glue pushing opening;
the closing section extends into the valve body and is connected with the telescopic rod in a sealing way;
and the corrugated section is arranged between the opening section and the closing section and is folded back and forth to release the motion stroke of the telescopic rod.
6. The gluing valve according to claim 5, wherein the valve body is cylindrical, the glue outlet and the glue pushing outlet are respectively arranged at two ends of the valve body, the glue inlet is arranged on a side wall of the valve body, and the inner diameter of the valve body is larger than or equal to the outer diameter of the folded corrugated section.
7. The gluing valve according to claim 5, wherein the telescopic rod is provided with a mounting seat, the cross section of the mounting seat in the moving direction of the telescopic rod is C-shaped, an opening of the mounting seat faces away from the glue outlet, and the closed section is accommodated in the mounting seat; the glue pushing opening is provided with a pressing plate, and the glue pushing opening and the pressing plate clamp the opening section.
8. A glue valve according to claim 1, wherein the telescopic rod comprises, in the direction of movement:
the piston rod is fixedly connected with the piston of the driving cylinder and extends towards the valve body;
the glue applying rod is movably matched in the valve body and penetrates through the glue outlet and the glue pushing port;
and the length adjusting mechanism is arranged between the piston rod and the glue beating rod and is used for adjusting the distance between the piston rod and the glue beating rod in the motion direction of the telescopic rod.
9. The dispensing valve of claim 8, wherein the length adjustment mechanism comprises:
one end of the threaded piece is in threaded fit with the lower end of the piston rod, and the other end of the threaded piece is in rotating fit with the upper end of the gluing rod;
and the positioning piece is screwed at the lower end of the piston rod and is abutted against the threaded piece to keep the position of the threaded piece.
10. The dispensing valve according to claim 8, further comprising a glue guide opening installed outside the glue outlet, wherein the glue guide opening and the valve body surround to form a glue outlet area, the glue dispensing rod extends to the glue outlet area, and the plug is installed on the glue dispensing rod located in the glue outlet area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922022692.0U CN211802044U (en) | 2019-11-20 | 2019-11-20 | Glue applying valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922022692.0U CN211802044U (en) | 2019-11-20 | 2019-11-20 | Glue applying valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211802044U true CN211802044U (en) | 2020-10-30 |
Family
ID=73028071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922022692.0U Active CN211802044U (en) | 2019-11-20 | 2019-11-20 | Glue applying valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211802044U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113399205A (en) * | 2021-06-24 | 2021-09-17 | 深圳市汇安通科技有限公司 | Dispensing valve and have dispensing machine of dispensing valve |
-
2019
- 2019-11-20 CN CN201922022692.0U patent/CN211802044U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113399205A (en) * | 2021-06-24 | 2021-09-17 | 深圳市汇安通科技有限公司 | Dispensing valve and have dispensing machine of dispensing valve |
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