CN210647085U

CN210647085U - Dispensing structure of emission cavity

Info

Publication number: CN210647085U
Application number: CN201921426227.7U
Authority: CN
Inventors: 王维玉
Original assignee: Jiangsu Leizidun Material Technology Co ltd
Current assignee: Jiangsu Leizidun Material Technology Co ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-06-02
Anticipated expiration: 2029-08-30

Abstract

The utility model belongs to the technical field of the point gum machine, especially be a launch cavity point and glue structure, including the packing element, install in one end of packing element is used for the point glue needle of point and seal in the air supply pipe that the other end of packing element is used for providing atmospheric pressure, be equipped with the adaptor between packing element and the point glue needle, the packing element with the junction of adaptor is equipped with the spiro union portion, adaptor with the packing element passes through the spiro union portion spiro union is fixed, the inside wall of spiro union portion still spiro union is fixed with non return choked flow seat; the non-return flow choking seat is arranged at the joint of the rubber cylinder and the adaptor, the non-return sealing plate is clamped on the inner side wall of the step groove in a sealing mode and used for blocking the communication between the glue containing cavity and the retention cavity, the non-return sealing plate is extruded to the step groove by the force of the spring inside the non-return flow choking seat under the condition that an air source is not connected, the glue containing cavity and the retention cavity are blocked by the non-return sealing plate, the outflow of the glue is limited, and the non-return effect is achieved.

Description

Dispensing structure of emission cavity

Technical Field

The utility model belongs to the technical field of the point gum machine, concretely relates to structure is glued to transmission cavity point.

Background

When the glue is dispensed, the glue dispenser is generally used for dispensing glue, oil paint and other liquid in the product process are precisely dispensed, injected, coated and dripped to each product precise position, and the glue dispenser can be used for realizing dispensing, line drawing, circular or arc.

Most of the existing glue dispensing machines pressurize a glue cylinder in a pneumatic mode to extrude glue, but after air supply is stopped, air pressure still exists in the glue cylinder, glue can always flow out of the glue cylinder, so that the glue sprayed by a glue dispensing needle is uneven and can be dragged and stuck on the surface of a product.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a structure is glued to transmission cavity point has and in time stops out to glue, can control out the characteristics of gluing the volume.

In order to achieve the above object, the utility model provides a following technical scheme: a dispensing structure of a launching cavity comprises a glue cylinder, a dispensing needle arranged at one end of the glue cylinder and used for dispensing glue, and an air supply pipe sealed at the other end of the glue cylinder and used for providing air pressure, wherein an adapter is arranged between the glue cylinder and the dispensing needle, a screwed part is arranged at the joint of the glue cylinder and the adapter, the adapter and the glue cylinder are fixed through the screwed part in a screwed way, a non-return flow choking seat is fixedly connected with the inner side wall of the screwed part in a screwed way, a mutually communicated glue containing cavity, a step groove and a detention cavity are sequentially arranged in the glue cylinder from top to bottom, the non-return flow choking seat is arranged in the detention cavity, the output end of the non-return flow choking seat is elastically connected with a non-return sealing plate extending towards the direction of the step groove, and the non-return sealing plate is clamped on the inner side wall of the step groove, and the screwed part is provided with a plurality of glue flow channels, and two ends of each glue flow channel penetrate through the retention cavity.

Preferably, a movable cavity is formed in the non-return flow blocking seat, a connecting rod is fixedly connected to the bottom end of the non-return sealing plate, the connecting rod penetrates through the non-return flow blocking seat and extends into the movable cavity, a spring for outwards extruding the connecting rod is installed in the movable cavity, and the non-return sealing plate is elastically connected with the non-return flow blocking seat through the spring.

Preferably, the outer side wall and the inner side wall of the screwed part are both provided with male threads, the outer side wall of the non-return flow-resisting seat is provided with threads, and the non-return flow-resisting seat and the screwed part are sealed through the threads in a screwed manner.

Preferably, a hexagonal nut is arranged in the middle of the bottom of the non-return flow blocking seat, and the hexagonal nut and the non-return flow blocking seat are integrally formed.

Preferably, the top of adaptor is equipped with first connecting portion, the adaptor with pass through between the spiro union portion first connecting portion spiro union is fixed, the bottom of adaptor is equipped with the second connecting portion, the adaptor with pass through between the point glue needle the second connecting portion spiro union is fixed.

Preferably, the glue flow channels are distributed on the periphery of the non-return flow-resisting seat in a centrosymmetric manner.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses in, set up the non return choked flow seat through the junction at packing element and adaptor, on the sealed block of the non return closing plate on the non return choked flow seat to the inside wall in step groove for block the intercommunication that glue holds the chamber and is detained the chamber, under the condition of not leading to the air supply, the non return closing plate receives the power of non return choked flow seat internal spring, extrudees the non return closing plate to step groove, holds the chamber and is detained the chamber stifled die with the glue of intercommunication, restricts the outflow of glue, reaches the non return effect.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a detention chamber of the present invention;

fig. 3 is a schematic structural view of a check flow-resisting seat of the present invention;

fig. 4 is a schematic sectional view taken along the direction a-a in fig. 2.

In the figure: 1. a rubber cylinder; 101. a glue containing cavity; 102. a step groove; 103. a retention chamber; 104. a glue runner; 11. a screw connection part; 2. an adapter; 21. a first connection portion; 22. a second connecting portion; 3. dispensing a glue needle; 4. a gas supply pipe; 5. a check flow choking seat; 501. a movable cavity; 502. a thread; 51. a non-return sealing plate; 511. a connecting rod; 52. a spring; 53. a hexagonal nut.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: a dispensing structure of a launching cavity comprises a rubber cylinder 1, a dispensing needle 3 arranged at one end of the rubber cylinder 1 and used for dispensing and an air supply pipe 4 sealed at the other end of the rubber cylinder 1 and used for providing air pressure, wherein an adapter 2 is arranged between the rubber cylinder 1 and the dispensing needle 3, a screwed part 11 is arranged at the joint of the rubber cylinder 1 and the adapter 2, the adapter 2 and the rubber cylinder 1 are fixed in a screwed way through the screwed part 11, a non-return flow-resisting seat 5 is further fixed in a screwed way on the inner side wall of the screwed part 11, a glue containing cavity 101, a step groove 102 and a detention cavity 103 which are mutually communicated are sequentially arranged in the rubber cylinder 1 from top to bottom, the non-return flow-resisting seat 5 is positioned in the detention cavity 103, the output end of the non-return flow-resisting seat 5 is elastically connected with a non-return sealing plate 51 which extends towards the direction of the step groove 102, the non-return sealing plate 51 is clamped on the inner side wall, both ends of the glue flow passage 104 penetrate the retention cavity 103.

In this embodiment, a non-return flow-resisting seat 5 is disposed at a connection position between a rubber cylinder 1 and an adaptor 2, the non-return flow-resisting seat 5 is fixed to the rubber cylinder 1 by screwing, a glue containing cavity 101, a step groove 102 and a detention cavity 103 which are communicated with each other are sequentially formed in the rubber cylinder 1 from top to bottom, a non-return sealing plate 51 on the non-return flow-resisting seat 5 is clamped to an inner side wall of the step groove 102 in a sealing manner for blocking communication between the glue containing cavity 101 and the detention cavity 103, a plurality of glue flow channels 104 are formed in a screwing part 11, two ends of each glue flow channel 104 penetrate through the detention cavity 103, the non-return sealing plate 51 is pressed towards the step groove 102 by a force of a spring 52 inside the non-return flow-resisting seat 5 under the condition of not communicating an air source, the communicated glue containing cavity 101 and the detention cavity 103 are blocked to prevent glue from flowing down, so as to perform a, make non return closing plate 51 break away from step groove 102, make glue hold chamber 101 and delay chamber 103 intercommunication, glue can flow to some glue needle 3 along glue runner 104 and carry out some glue work, then stop at atmospheric pressure, and spring 52 is greater than the pressure of glue to non return closing plate 51 to the effort of non return closing plate 51, and non return closing plate 51 blocks to the step groove 102 in again, and glue does not receive inside pressure this moment, and the outflow of restriction glue reaches the non return effect.

Specifically, activity chamber 501 has been seted up to the inside of non return choked flow seat 5, non return closing plate 51's bottom fixedly connected with connecting rod 511, connecting rod 511 runs through non return choked flow seat 5 and stretches into to activity chamber 501 inside, the internally mounted of activity chamber 501 has the outside extruded spring 52 of connecting rod 511, non return closing plate 51 passes through spring 52 elastic connection with non return choked flow seat 5, activity chamber 501 is seted up through the inside at non return choked flow seat 5, and set up spring 52, extrude non return closing plate 51's one end and spring 52, make non return closing plate 51 extrude step groove 102 under spring 52's effect, seal, reach the non return effect.

Specifically, the external screw thread has all been seted up to the lateral wall and the inside wall of spiro union portion 11, has seted up screw thread 502 on the lateral wall of non return choked flow seat 5, and non return choked flow seat 5 passes through the screw thread 502 spiro union with spiro union portion 11 and seals, sets up the external screw thread respectively at the lateral wall and the inside wall of spiro union portion 11 for connect adaptor 2 and non return choked flow seat 5.

Specifically, the bottom middle position department of non return choked flow seat 5 is equipped with hexagon nut 53, and hexagon nut 53 and non return choked flow seat 5 integrated into one piece set up hexagon nut 53 through the bottom at non return choked flow seat 5, conveniently dismantle washing and maintenance to non return choked flow seat 5.

Specifically, the top of adaptor 2 is equipped with first connecting portion 21, and is fixed through first connecting portion 21 spiro union between adaptor 2 and the spiro union portion 11, and the bottom of adaptor 2 is equipped with second connecting portion 22, and it is fixed through second connecting portion 22 spiro union between adaptor 2 and the point needle 3, through setting up adaptor 2, is connected packing element 1 and point needle 3, makes things convenient for the coating of glue.

Specifically, the glue flow channel 104 is distributed on the periphery of the non-return flow-blocking seat 5 in a centrosymmetric manner, and the glue can flow out quickly by arranging the glue flow channel 104 around the periphery of the non-return flow-blocking seat 5.

The utility model discloses a theory of operation and use flow: under the condition of not switching on the air supply, the non-return sealing plate 51 receives the power of the spring 52 inside the non-return flow-resisting seat 5, the non-return sealing plate 51 is extruded towards the step groove 102, the communicated glue containing cavity 101 and the detention cavity 103 are blocked, the glue is prevented from flowing down, the non-return function is realized, after the air supply is switched on, the pressurized glue is extruded towards the non-return sealing plate 51 along the glue containing cavity 101, the non-return sealing plate 51 is separated from the step groove 102, the glue containing cavity 101 and the detention cavity 103 are communicated, the glue can flow towards the glue dispensing needle 3 along the glue flow channel 104 to perform glue dispensing work, then the glue is stopped at air pressure, the acting force of the spring 52 on the non-return sealing plate 51 is greater than the pressure of the glue on the non-return sealing plate 51, the sealing plate 51 is clamped.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a launch cavity point and glue structure, includes packing element (1), installs the one end of packing element (1) is used for some glue dispensing needle (3) and seal in packing element (1) other end is used for providing air supply pipe (4) of atmospheric pressure, its characterized in that: an adapter (2) is arranged between the rubber cylinder (1) and the dispensing needle (3), a screwed part (11) is arranged at the joint of the rubber cylinder (1) and the adapter (2), the adapter (2) and the rubber cylinder (1) are fixed through the screwed part (11) in a screwed manner, a non-return flow-resisting seat (5) is further fixed on the inner side wall of the screwed part (11) in a screwed manner, a glue containing cavity (101), a step groove (102) and a detention cavity (103) which are communicated with each other are sequentially arranged in the rubber cylinder (1) from top to bottom, the non-return flow-resisting seat (5) is positioned in the detention cavity (103), the output end of the non-return flow-resisting seat (5) is elastically connected with a non-return sealing plate (51) which extends towards the direction of the step groove (102), the non-return sealing plate (51) is clamped to the inner side wall of the step groove (102) in a sealing manner and is used for blocking the communication between the glue containing cavity (, a plurality of glue flow channels (104) are formed in the screwing part (11), and two ends of each glue flow channel (104) penetrate through the retention cavity (103).

2. The dispensing structure of an emission chamber according to claim 1, wherein: activity chamber (501) have been seted up to the inside of non return choked flow seat (5), the bottom fixedly connected with connecting rod (511) of non return closing plate (51), connecting rod (511) run through non return choked flow seat (5) stretch into to inside activity chamber (501), the internally mounted of activity chamber (501) has will connecting rod (511) outside extruded spring (52), non return closing plate (51) with non return choked flow seat (5) pass through spring (52) elastic connection.

3. The dispensing structure of an emission chamber according to claim 1, wherein: the outer side wall and the inner side wall of the screwed part (11) are both provided with male threads, the outer side wall of the non-return flow blocking seat (5) is provided with threads (502), and the non-return flow blocking seat (5) and the screwed part (11) are sealed through the threads (502).

4. The dispensing structure of an emission chamber according to claim 1, wherein: and a hexagonal nut (53) is arranged at the middle position of the bottom of the non-return flow blocking seat (5), and the hexagonal nut (53) and the non-return flow blocking seat (5) are integrally formed.

5. The dispensing structure of an emission chamber according to claim 1, wherein: the top of adaptor (2) is equipped with first connecting portion (21), adaptor (2) with pass through between spiro union portion (11) first connecting portion (21) spiro union is fixed, the bottom of adaptor (2) is equipped with second connecting portion (22), adaptor (2) with pass through between some gluey needles (3) second connecting portion (22) spiro union is fixed.

6. The dispensing structure of an emission chamber according to claim 1, wherein: the glue flow channels (104) are distributed on the periphery of the non-return flow-resisting seat (5) in a centrosymmetric manner.