CN216727953U

CN216727953U - Glue spraying valve structure

Info

Publication number: CN216727953U
Application number: CN202122480863.1U
Authority: CN
Inventors: 王腊鹏
Original assignee: Zhejiang Lingzhi Intelligent Technology Co ltd
Current assignee: Zhejiang Lingzhi Intelligent Technology Co ltd
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2022-06-14
Anticipated expiration: 2031-10-13

Abstract

The utility model relates to a glue spraying valve structure, which comprises a valve body, wherein the valve body is vertically arranged, a valve cavity is arranged in the valve body, an air inlet channel for air to enter the valve cavity is arranged on the side wall of the valve body, a liquid inlet flow channel for glue liquid to enter the valve cavity is arranged on the side wall of the valve body at a position close to the bottom of the valve body, and a nozzle for the glue liquid to flow out is arranged on the bottom of the valve body; the firing pin is vertically arranged in the valve cavity and moves upwards to open the nozzle under the pushing of air pressure; the elastic piece acts on the firing pin and always enables the firing pin to have the tendency of moving downwards to close the nozzle in an energy storage state; the method is characterized in that: an oil inlet channel for allowing lubricating oil to enter and then contact with the firing pin is formed in the side wall of the valve body, and the oil inlet channel is communicated with the valve cavity. The oil inlet channel is convenient for adding lubricating oil into the valve cavity to be in contact with the firing pin, so that the firing pin is lubricated, the damage to the firing pin due to large friction of the firing pin is avoided, and the service life of the firing pin is prolonged.

Description

Glue spraying valve structure

Technical Field

The utility model relates to a glue spraying valve structure.

Background

The glue dispenser is often used in the fields of electronics, clothing and the like to perform glue dispensing treatment on products. The glue spraying valve is an extremely important part in the glue dispenser. In the prior art, a spring is arranged on a firing pin of a glue spraying valve, the firing pin moves under the air pressure of a pressurizing system, the spring is matched to realize the up-and-down movement of the firing pin, and then the dispensing action is realized.

For example, the patent application No. CN201610135991.3 (application publication No. CN105618329A) discloses a jet dispensing valve, which includes an upper air pressure chamber, a striker, a lower air pressure chamber, a lower air vent, an upper air vent and an electromagnetic valve, when the electromagnetic valve is at an upper station, high pressure air enters the lower air pressure chamber from the lower air vent, air in the upper air pressure chamber is exhausted to the atmosphere through the upper air vent, and the striker ascends under the push of the high pressure air and compresses a spring; when the electromagnetic valve is at the lower station, the high-pressure air in the lower air pressure cavity enters the upper air pressure cavity through the lower exhaust hole and the upper exhaust hole, the air pressures of the upper air pressure cavity and the lower air pressure cavity are close to balance, and the striker descends under the pushing of the spring to eject the glue solution out of the valve. The injection type dispensing valve achieves the purpose of dispensing, but in the long-term use process, the friction force between the firing pin and the contact part of the firing pin is increased, and the service life of the firing pin is reduced; in addition, it is difficult to remove the glue bottle.

Therefore, further improvements to existing glue valves are needed.

SUMMERY OF THE UTILITY MODEL

The first technical problem to be solved by the present invention is to provide a glue spraying valve structure for lubricating a striker to improve the life of the striker in view of the current state of the prior art.

The second technical problem to be solved by the utility model is to provide a glue spraying valve structure which is convenient for the disassembly and assembly of a glue bottle.

The technical scheme adopted by the utility model for solving the first technical problem is as follows: a glue spraying valve structure, which comprises

The valve body is vertically arranged, a valve cavity is arranged in the valve body, an air inlet channel for air to enter the valve cavity is arranged on the side wall of the valve body, a liquid inlet flow channel for glue liquid to enter the valve cavity is arranged on the side wall of the valve body at a position close to the bottom of the valve body, and a nozzle for the glue liquid to flow out is arranged at the bottom of the valve body;

the firing pin is vertically arranged in the valve cavity and moves upwards to open the nozzle under the pushing of air pressure;

the elastic piece acts on the firing pin and always enables the firing pin to have the tendency of moving downwards to close the nozzle in an energy storage state;

the method is characterized in that: an oil inlet channel for allowing lubricating oil to enter and then contact with the firing pin is formed in the side wall of the valve body, and the oil inlet channel is communicated with the valve cavity.

The oil inlet channel can be transversely arranged or obliquely arranged, but from the angle of conveniently leading lubricating oil into the valve cavity, the oil inlet channel gradually inclines towards the valve cavity from top to bottom.

The oil inlet passage can be in the form of one or at least two, but preferably, the oil inlet passage is at least two and is arranged at intervals along the circumferential direction.

Preferably, the valve cavity comprises an upper valve cavity and a lower valve cavity which are arranged from top to bottom, the striker is located in the lower valve cavity, a valve cover which moves together with the striker to open or close a connecting port between the lower valve cavity and the upper valve cavity is arranged at the upper part of the striker, the nozzle is located at the bottom of the lower valve cavity, a first sealing ring used for realizing sealing connection between the striker and the corresponding inner wall of the lower valve cavity is sleeved between the striker and the liquid inlet channel, and the air inlet channel, the liquid inlet channel and the oil inlet channel are all communicated with the lower valve cavity.

In order to discharge the gas in the lower valve cavity into the upper valve cavity when the valve cover opens the connecting port, the gas inlet channel is positioned above the oil outlet of the oil inlet channel, and a second sealing ring for realizing the sealing connection between the striker and the corresponding inner wall of the lower valve cavity is sleeved between the striker positioned on the oil outlet and the gas inlet channel.

In order to facilitate downward movement of the striker when the striker moves upward and stops ventilation, a movable member is arranged in the upper valve cavity, the movable member is positioned above the striker, a gap is reserved between the movable member and the striker when the spout is in a closed state, the elastic member is a spring, the spring is partially sleeved on the movable member, the upper end of the spring is in contact with the top of the upper valve cavity, and the lower end of the spring is connected with the movable member. In addition, a spring may be provided separately from the movable member.

In order to improve the heat dissipation capacity, a heat dissipation fin is arranged on the position, close to the lower portion, of the outer peripheral wall of the valve body, and the heat dissipation fin is located below the oil inlet channel.

In order to supplement the glue solution into the valve cavity, the glue filling valve further comprises a liquid storage device, wherein the liquid storage device comprises a rubber cylinder with a containing cavity inside and a glue bottle positioned in the containing cavity, a containing cavity used for containing the glue solution is arranged inside the glue bottle, and the glue bottle is provided with a liquid outlet channel communicated with a liquid inlet flow channel of the valve body in a fluid mode.

In order to facilitate taking and placing of the glue bottle, the glue cylinder comprises a cylinder body with an open top and a cover plate covering the open top of the cylinder body, the cavity is formed by enclosing the cylinder body and the cover plate, and a channel for a liquid outlet channel of the glue bottle to penetrate is formed in the bottom of the cylinder body.

The technical scheme adopted by the utility model for solving the second technical problem is as follows: the upper portion of apron is provided with the relative apron pivoted top cap of ability, be provided with vertical arrangement's locating lever on the apron, the top side direction of locating lever is extended and is formed with the convex part, the arc hole that extends along circumference is seted up to the top cap on corresponding the locating lever position, the arc hole is including supplying in proper order along circumference the first trompil that the convex part of locating lever was worn out and only supply the second trompil that the part except the top was worn out, the second trompil extends along circumference.

In order to press the cover plate on the cylinder, a convex column is formed by extending upwards the position of the cover plate close to the center, a through hole for the convex column to penetrate out is formed in the position of the top cover close to the center, and a pressure rod capable of moving downwards to press the cover plate is arranged on the top cover.

Compared with the prior art, the utility model has the advantages that: the valve body of the glue spraying structure is provided with the oil inlet channel communicated with the valve cavity, lubricating oil is conveniently added into the valve cavity through the oil inlet channel due to the existence of the oil inlet channel, and the lubricating oil entering the valve cavity is contacted with the firing pin, so that the firing pin is lubricated, the damage to the firing pin due to large friction force of the firing pin is avoided, and the service life of the firing pin is prolonged.

Drawings

FIG. 1 is a schematic structural diagram of the present embodiment;

FIG. 2 is a cross-sectional view of FIG. 1;

fig. 3 is a cross-sectional view at another angle of fig. 1.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 3, the glue spraying valve structure of the present embodiment includes a valve body 1, a firing pin 2, an elastic member, a liquid storage device 6, a top cover 7 and a pressing rod 8.

As shown in fig. 2 and 3, the valve body 1 is vertically arranged and internally provided with a valve cavity 10, the valve cavity 10 comprises an upper valve cavity 10a and a lower valve cavity 10b which are arranged from top to bottom, the striker 2 is vertically arranged in the lower valve cavity 10b, the upper part of the striker 2 is provided with a valve cover 5 which moves together with the striker 2, the valve cover 5 is positioned on a joint port between the upper valve cavity 10a and the lower valve cavity 10b, and when moving together with the striker 2, the joint port is opened or closed.

As shown in fig. 3, the outer side wall of the valve body 1 has an intake passage 101 for the gas to enter the lower valve chamber 10b at a position corresponding to the lower valve chamber 10b, and the intake passage 101 is located below the valve cover 5. As shown in fig. 2, the side wall of the valve body 1 has a liquid inlet channel 102 at a position near the bottom for the glue solution to enter the valve cavity 10, and the bottom of the valve body 1 is provided with a spout 103 for the glue solution to flow out, and the spout 103 is located at the bottom of the lower valve cavity 10 b. As shown in fig. 1 and 2, an oil inlet passage 104 for allowing lubricating oil to enter and then contact with the striker 2 is opened in a side wall of the valve body 1, and the oil inlet passage 104 has an oil outlet 1041 communicated with the lower valve chamber 10 b. The oil inlet passages 104 are at least two and are arranged at intervals along the circumferential direction. In this embodiment, there are two oil inlet passages 104, and each oil inlet passage 104 is gradually inclined toward the lower valve chamber 10b from top to bottom. The oil inlet channel is convenient for adding lubricating oil into the valve cavity to be in contact with the firing pin, so that the firing pin is lubricated, the firing pin is prevented from being damaged due to large friction force, and the service life of the firing pin is prolonged. The intake passage 101 is located above the oil outlet 1041 of the oil inlet passage 104, and the intake passage 101, the liquid inlet flow passage 102 and the oil inlet passage 104 are all communicated with the lower valve cavity 10 b.

As shown in fig. 2, the striker 2 is sleeved with a first sealing ring 21 between the oil inlet passage 104 and the liquid inlet flow passage 102, for sealing connection between the striker 2 and the corresponding inner wall of the lower valve chamber 10 b; and the striker 2 is sleeved with a second sealing ring 22 between the oil outlet 1041 and the air inlet passage 101 for realizing the sealing connection between the striker 2 and the corresponding inner wall of the lower valve chamber 10 b. Further, the outer peripheral wall of the valve body 1 is provided with a heat sink 11 at a position adjacent to the lower portion, the heat sink 11 being located below the oil inlet passage 104.

As shown in fig. 2 and 3, a movable member 4 is disposed in the upper valve chamber 10a, the movable member 4 is located above the striker 2, and a gap is left between the striker 2 and the movable member 4 in a natural state where the nozzle 103 is closed. The elastic element is a spring 3, the spring 3 is partially sleeved on the movable element 4, the upper end of the spring 3 is in contact with the top of the upper valve cavity 10a, and the lower end of the spring 3 is connected with the movable element 4. The bottom of the mobile element 4 has an upwardly concave cavity 41 in a position corresponding to the striker 2.

As shown in fig. 2, the liquid storage device 6 includes a rubber cylinder 61 having a cavity inside and a rubber bottle 62 located in the cavity, the rubber bottle 62 has a cavity inside for containing a rubber liquid, and the rubber bottle 62 has a liquid outlet channel 621 fluidly connected to the liquid inlet channel 102 of the valve body 1, specifically, the liquid outlet channel 621 is connected to the liquid inlet channel 102 through a flow guiding channel 01. The glue cylinder 61 comprises a cylinder body 611 with an open top and a cover plate 612 covering the open top of the cylinder body 611, a cavity is defined between the cylinder body 611 and the cover plate 612, and a channel for the liquid outlet channel 621 of the glue bottle 62 to penetrate is arranged at the bottom of the cylinder body 611. In order to increase the sealing performance between the glue bottle and the barrel, the bottom of the glue bottle 62 and the bottom of the barrel 611 form a sealing connection through a third sealing ring 9, and the third sealing ring 9 is located at the periphery of the liquid outlet channel 621.

For the convenience of disassembling and assembling the glue bottle, as shown in fig. 1 and fig. 2, a top cover 7 capable of rotating relative to the cover plate 612 is disposed on the upper portion of the cover plate 612, a positioning rod 613 vertically disposed is disposed on the cover plate 612, a protruding portion 6131 is formed at the top end of the positioning rod 613 in a lateral extending manner, in this embodiment, the protruding portion 6131 is formed at the top end periphery of the positioning rod 613 in a lateral extending manner, an arc-shaped hole 71 extending along the circumferential direction is formed at a position corresponding to the positioning rod 613 of the top cover 7, the arc-shaped hole 71 sequentially includes a first opening 711 for the protruding portion 6131 of the positioning rod 613 to penetrate through and a second opening 712 for only the rod portion except for the top end to penetrate through along the circumferential direction, the second opening 712 extends along the circumferential direction, and the first opening 711 and the second opening 712 are disposed along the rotating direction of the top cover 7. In this manner, the first opening 711 of the top cover 7 is aligned with the projection 6131, so that the positioning rod 613 is inserted into the first opening 711, and at this time, the top cover 7 is rotated, the rod part of the positioning rod 613 slides along the second opening 712, and the projection 6131 is positioned above the top cover, so that the top cover 7 is mounted on the cover plate 612. In order to press down the cover plate after the glue bottle is installed, the position of the cover plate 612 adjacent to the center extends upwards to form a convex column 6121, the position of the top cover 7 adjacent to the center is provided with a through hole for the convex column 6121 to penetrate through, the top cover 7 is provided with a support 72, the support 72 is provided with a through hole for the compression bar 8 to penetrate through, the compression bar can be driven to move up and down by rotating the compression bar, and the cover plate 612 can be pressed when the compression bar moves downwards. In order to rotate the pressing rod conveniently, a handle part 81 which is convenient to rotate is arranged at the upper end of the pressing rod 8.

When the glue bottle needs to be taken out, the top cover 7 is rotated reversely, and when the first opening of the top cover 7 is aligned with the convex part 6131, the top cover 7 is taken down from the cover plate, and the glue bottle can be taken out only by taking down the cover plate.

The working process of the glue spraying valve structure is as follows:

the air enters the lower valve cavity 10b from the air inlet channel 101, the valve cover 5 is lifted upwards by air pressure, at the same time, the valve cover 5 drives the striker 2 to move upwards, meanwhile, the air is continuously discharged from the lower valve cavity 10b through the connecting port, when the striker 2 moves upwards, the lower end of the striker 2 is separated from the nozzle 103 to open the nozzle 103, at the moment, the glue solution enters the lower valve cavity 10b from the glue bottle and the liquid inlet channel 102, when the valve cover 5 moves upwards, the striker 2 moves upwards to locally move the valve cover 5 on the striker to be positioned in the concave cavity 41 and continues to move upwards to compress the spring 3, at the moment, the spring 3 is in an energy storage state, the striker 2 has a downward movement trend under the action of the spring 3, at the moment, the glue solution is pressed downwards, the glue solution is ejected from the nozzle 103 until the striker closes the nozzle 103, and the liquid ejection is stopped.

Directional terms such as "upper", "lower", "side", "top", "bottom", and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the present invention, but are used herein for convenience of description only and are to be determined based on example orientations shown in the accompanying drawings. Because the disclosed embodiments of the present invention may be oriented in different directions, the directional terms are used for descriptive purposes and are not to be construed as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or coincident with the direction of gravity.

The term "fluid communication" as used herein refers to a spatial relationship between two components or portions (hereinafter collectively referred to as a first portion and a second portion, respectively), i.e., a fluid (gas, liquid or a mixture of both) can flow along a flow path from the first portion and/or be transported to the second portion, and may be a direct communication between the first portion and the second portion, or an indirect communication between the first portion and the second portion via at least one third element, such as a fluid channel, e.g., a pipe, a channel, a duct, a flow guide, a hole, a groove, or a chamber that allows a fluid to flow through, or a combination thereof.

Claims

1. A glue spraying valve structure, which comprises

The valve body (1) is vertically arranged, a valve cavity (10) is arranged in the valve body, an air inlet channel (101) for air to enter the valve cavity (10) is arranged on the side wall of the valve body (1), a liquid inlet flow channel (102) for glue liquid to enter the valve cavity (10) is arranged on the side wall of the valve body (1) at a position close to the bottom of the valve body, and a nozzle (103) for the glue liquid to flow out is formed in the bottom of the valve body (1);

a firing pin (2) which is vertically arranged in the valve cavity (10) and moves upwards to open the spout (103) under the pushing of air pressure;

the elastic piece acts on the firing pin (2) and always enables the firing pin (2) to have the tendency of moving downwards and closing the nozzle (103) in an energy storage state;

the method is characterized in that: an oil inlet passage (104) for allowing lubricating oil to enter and then contact with the firing pin (2) is formed in the side wall of the valve body (1), and the oil inlet passage (104) is communicated with the valve cavity (10).

2. The glue spraying valve structure according to claim 1, wherein: the oil inlet passage (104) gradually inclines towards the valve cavity (10) from top to bottom.

3. The glue spraying valve structure according to claim 1, wherein: the valve cavity (10) comprises an upper valve cavity (10a) and a lower valve cavity (10b) which are arranged from top to bottom, the striker (2) is located in the lower valve cavity (10b), the upper portion of the striker (2) is provided with a valve cover (5) which moves together with the striker to open or close a connection port between the upper valve cavity (10a) and the lower valve cavity (10b), the nozzle (103) is located at the bottom of the lower valve cavity (10b), a first sealing ring (21) used for achieving sealing connection between the striker (2) and the corresponding inner wall of the lower valve cavity (10b) is sleeved between the oil inlet channel (104) and the liquid inlet channel (102) of the striker (2), and the air inlet channel (101), the liquid inlet channel (102) and the oil inlet channel (104) are all communicated with the lower valve cavity (10 b).

4. The glue spraying valve structure according to claim 3, wherein: the air inlet channel (101) is located above an oil outlet (1041) of the oil inlet channel (104), and a second sealing ring (22) used for achieving sealing connection between the striker (2) and the corresponding inner wall of the lower valve cavity (10b) is sleeved between the striker (2) and the air inlet channel (101) and located between the oil outlet (1041).

5. The glue spraying valve structure according to claim 4, wherein: a moving part (4) is arranged in the upper valve cavity (10a), the moving part (4) is located above the firing pin (2), the nozzle is in a closed state, a gap is reserved between the moving part (4) and the firing pin (2), the elastic part is a spring (3), the spring (3) is partially sleeved on the moving part (4), the upper end of the spring (3) is in contact with the top of the upper valve cavity (10a), and the lower end of the spring (3) is connected with the moving part (4).

6. The glue spraying valve structure according to claim 1, wherein: and a radiating fin (11) is arranged at the position, adjacent to the lower part, of the peripheral wall of the valve body (1), and the radiating fin (11) is positioned below the oil inlet channel (104).

7. A glue valve structure according to any one of claims 1 to 6 wherein: the glue bottle is characterized by further comprising a liquid storage device (6), wherein the liquid storage device (6) comprises a glue cylinder (61) with a cavity inside and a glue bottle (62) positioned in the cavity, a containing cavity used for containing glue liquid is formed inside the glue bottle (62), and the glue bottle (62) is provided with a liquid outlet channel (621) which is in fluid communication with the liquid inlet flow channel (102) of the valve body (1).

8. The glue spraying valve structure according to claim 7, wherein: the glue cylinder (61) comprises a cylinder body (611) with an open top and a cover plate (612) covering the open top of the cylinder body (611), the cavity is formed by enclosing the cylinder body (611) and the cover plate (612), and a channel for the liquid outlet channel (621) of the glue bottle (62) to penetrate through is arranged at the bottom of the cylinder body (611).

9. The glue spraying valve structure of claim 8, wherein: the upper portion of apron (612) is provided with can be relative apron (612) rotatory top cap (7), be provided with vertical arrangement locating lever (613) on apron (612), the top side extension of locating lever (613) is formed with convex part (6131), arc hole (71) along circumference extension are seted up in top cap (7) on corresponding locating lever (613) position, arc hole (71) are followed circumference and are included the first trompil (711) that supplies convex part (6131) of locating lever (613) to wear out and only supply the second trompil (712) that the part except that the top wore out in proper order, second trompil (712) extend along circumference.

10. The glue spraying valve structure of claim 9, wherein: the position of the cover plate (612) adjacent to the center extends upwards to form a convex column (6121), the position of the top cover (7) adjacent to the center is provided with a through hole for the convex column (6121) to penetrate through, and the top cover (7) is provided with a pressure lever (8) which can move downwards to press the cover plate (612).