CN210935668U

CN210935668U - Glue leakage prevention glue dispensing head

Info

Publication number: CN210935668U
Application number: CN201921103442.3U
Authority: CN
Inventors: 王敏; 姚传兵
Original assignee: Zhejiang Leapmotor Technology Co Ltd
Current assignee: Zhejiang Zero Run Technology Co Ltd
Priority date: 2019-07-15
Filing date: 2019-07-15
Publication date: 2020-07-07
Anticipated expiration: 2029-07-15

Abstract

The utility model discloses a dispensing head aims at providing a head is glued in point of leak protection glue. It is connected with the glue gun including going into jiao kou, rubber tube, play jiao kou, goes into jiao kou and is connected with the glue gun, and the rubber tube is including containing rubber tube anterior segment, the rubber tube middle section of going into jiao kou and the rubber tube end section that is equipped with out jiao kou, and rubber tube anterior segment, rubber tube middle section and rubber tube end section arrange in proper order from a left side to the right side, and rubber tube anterior segment inside wall is equipped with the internal thread with glue gun adaptation, and the internal diameter of rubber tube end section is from the one end of neighbouring play jiao kou to the one end of keeping away from out jiao kou crescent, inside fixed pin, the extension spring of being equipped with of rubber tube, the fixed pin both ends are connected with the inside wall of rubber tube, it seals the stopper to be equipped with the jiao kou that can cover out jiao kou on going out jiao kou, the one. The head of gluing seals and fills up and can be pulled back the normal position by the extension spring after the process is accomplished to the point, prevents to leak gluey.

Description

Glue leakage prevention glue dispensing head

Technical Field

The utility model relates to a glue technical field, concretely relates to head is glued in point of leak protection glue.

Background

The glue dispensing technology is a relatively common technology in the production technology of the manufacturing industry, black glue is extruded out of the barreled glue raw materials according to the required dosage through a glue dispensing device (a glue dispensing gun) and a glue dispensing head, and the glue dispensing technology is mainly applied to the reinforcing or insulating effect of large electronic parts such as aluminum electrolytic capacitors, ceramic chip capacitors and the like. After the dispensing head is used, the glue body which is approximately in a liquid state is influenced by gravity, and the glue body can slowly drip from the glue outlet hole of the dispensing head, so that the waste of the glue body is caused, and the glue outlet hole is blocked.

China patent publication No. CN209034724U, published 2019, 06.28.A name invented and created is an automatic dispenser, which discloses an automatic dispenser comprising a case, a battery bracket, a storage battery, a rubber plate, a reinforcing rib, a vertical arm, a beam frame, a dispensing box, a slide rail, a first fixture block, a liquid pump, a first feed pipe, a glue storage box, a slide block, a mounting plate, a second feed pipe, a glue storage tank, a motor, a stirring shaft, a stirring roller, a rubber pipe, a fixing plate, a discharge valve, a dispensing head, a dispensing table, a second fixture block, a sliding base, a switch button and a support seat, wherein the battery bracket is installed at the center of the interior of the case through a bolt, the storage battery is installed at the top of the battery bracket through a bolt, the rubber plate is installed at the bottom of the battery bracket through a bolt, the sliding base is installed at the center of the top of the case through a bolt, and the, simple structure, convenient operation can adjust the position of point, and the point is glued extensively, has the function of glue solution stirring, can effectively avoid the glue solution to take place to solidify when depositing, is favorable to improving the point and glues the effect. The defects are that the glue outlet is not effectively improved, and the problem that the glue is easy to leak from the glue outlet still exists.

Disclosure of Invention

The utility model overcomes among the prior art colloid is easy from the defect that the hole spills of gluing, provides a head is glued to point that prevents to leak and glue.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model provides a head is glued in point of leak protection glue, is including going into jiao kou, rubber tube, play jiao kou, goes into jiao kou and is connected with a glue gun, and the rubber tube is including containing rubber tube anterior segment, the rubber tube middle section of going into jiao kou and the rubber tube end section that is equipped with out jiao kou, and rubber tube anterior segment, rubber tube middle section and rubber tube end section arrange from a left side to the right side in proper order, and rubber tube anterior segment inside wall is equipped with the internal thread with a glue gun adaptation, and the internal diameter of rubber tube end section is from the one end of neighbouring jiao kou to keeping away from the one end of going out jiao kou crescent, the inside fixed pin, extension spring that is equipped with of rubber tube, the fixed pin both ends are connected with the inside wall of rubber tube, it seals the stopper to be equipped with the gluey head that can cover out jiao kou on the play jiao kou to.

The rubber tube is wholly equivalent to a tubular cavity, and in order to increase the rubber outlet speed, the inner diameter of the rubber tube is reduced along the direction from the rubber inlet to the rubber outlet. The closer the colloid is to the outlet, the smaller the inner diameter of the pipe is, the faster the flow rate of the colloid is.

The dispensing head connected to the existing dispensing gun is generally made of common plastic materials. When the dispensing head is used, the paste (sometimes only liquid) colloid is filled in the dispensing head, air pressure is provided through the electromagnetic valve, the dispensing gun extrudes the paste colloid outwards from an inner cavity (rubber tube) of the dispensing head, the pulling force of the tension spring is overcome, the sealing plug of the dispensing head at the glue outlet is pushed to move outwards, and the colloid is discharged from the glue outlet, so that the dispensing process is realized. After the electromagnetic valve is closed, the inside of the dispensing head is not subjected to external pressure any more, the elastic force of the tension spring contracts, the glue head sealing plug is pulled towards the fixed pin direction, the glue outlet is blocked by the glue head sealing plug, and the glue in the dispensing head cannot leak.

Preferably, the end section of the rubber tube is in a circular truncated cone shape. The tail end of the rubber tube is designed into a round table shape, so that the rubber tube is convenient to process, and when the rubber in the rubber tube is discharged, the rubber is balanced in stress (the rubber is circumferentially stressed by the pressure brought by the inner side wall of the rubber tube).

Preferably, the rubber head sealing plug is in a circular truncated cone shape. The rubber head sealing plug is designed into a round table shape, when the rubber body is extruded outwards from the inside of the rubber tube, the rubber body around the rubber head sealing plug can generate pressure, the rubber head sealing plug is stressed in a vertical direction in a balanced manner, the rubber head sealing plug is subjected to component force in a horizontal direction by the rubber body acting on the rubber head sealing plug in the horizontal direction, and the rubber head sealing plug tends to be pushed out of the rubber tube, so that the rubber head sealing plug can be ejected out more quickly along the extension direction of the tension spring.

Preferably, the rubber tube is made of transparent plastic materials. The rubber tube is made of transparent plastic materials, so that workers can obtain the internal working state of the dispensing head more intuitively, and the problems that the dispensing head is blocked and the like can be found in time.

Preferably, the inner side wall of the rubber tube tail section adjacent to the rubber outlet is provided with a notch. When the head of gluing seals the stopper and removes to keeping away from out jiao kou direction, the colloid in the rubber tube can be preferred to flow along the notch cut, and the notch cut is equivalent to the effect of drainage, maneuverability when improving the point and gluing.

Preferably, the outer side wall of the rubber head sealing plug is provided with a caulking groove, and the caulking groove is provided with a sealing ring. When the rubber head sealing plug is tensioned by the elasticity of the tension spring, the rubber head sealing plug blocks the rubber outlet to realize sealing. In order to improve the sealing performance between the rubber head sealing plug and the rubber pipe, a sealing ring which can be tightly attached to the inner side wall of the tail section of the rubber pipe is arranged on the outer side of the rubber head sealing plug.

Preferably, a groove is arranged on the inner side wall of the rubber tube end section, which is contacted with the rubber head sealing plug, and a sealing ring gasket is arranged on the groove. The sealing ring gasket is arranged on the circumferential direction of the inner side wall of the end section of the rubber tube, and the sealing effect between the end section of the rubber tube and the sealing plug of the rubber head can also be improved. The rubber head sealing plug can move frequently and is an easily-worn part, and particularly, the sealing ring on the rubber head sealing plug is worn after the rubber head sealing plug and the rubber pipe rubber outlet are impacted for many times, so that the sealing effect is reduced, and the excellent sealing performance can be ensured by arranging the sealing ring gasket on the tail end of the rubber pipe.

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

the glue outlet is provided with the rebounding rubber head sealing plug device, so that the leakage of the glue in the rubber tube after the glue is stopped can be prevented;

the tail end of the rubber tube is in a round table shape, so that the fast and stable outflow speed of the rubber body can be ensured in the dispensing process;

the sealing plug of the rubber head is made into a circular truncated cone shape, so that the rubber discharging speed of a glue dispensing gun can be increased;

the tail end of the rubber tube adopts the design of the notch groove, so that the flow guiding effect is realized on the rubber discharging direction, and the accuracy in the dispensing process is improved;

the sealing ring or the sealing ring gasket is arranged near the contact surface of the rubber head sealing plug and the tail end of the rubber tube, so that the sealing property between the rubber head sealing plug and the rubber outlet can be improved.

Drawings

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

FIG. 2 is another schematic structural diagram of the present invention;

fig. 3 is a sectional view of the structure at a of the present invention.

In the figure: the rubber sealing device comprises a rubber inlet 1, a rubber pipe 2, a rubber pipe front section 21, a rubber pipe middle section 22, a rubber pipe end section 23, a rubber outlet 3, internal threads 4, a fixing pin 5, a tension spring 6, a rubber head sealing plug 7, an engraved groove 8, an embedded groove 9, a sealing ring 10, a groove 11 and a sealing ring gasket 12.

Detailed Description

The invention will be described in further detail with reference to the following detailed description and accompanying drawings:

example 1

As shown in figure 1, the glue dispensing head for preventing glue leakage comprises a glue inlet 1, a glue tube 2 and a glue outlet 3, wherein the glue inlet 1 is connected with a glue dispensing gun, the glue tube 2 comprises a front rubber tube section 21 containing the glue inlet 1, a middle rubber tube section 22 and a tail rubber tube section 23 provided with the glue outlet 3, the front rubber tube section 21, the middle rubber tube section 22 and the tail rubber tube section 23 are sequentially arranged from left to right, the inner side wall of the front rubber tube section is provided with an internal thread 4 matched with the glue dispensing gun, the inner diameter of the tail rubber tube section 23 is gradually increased from one end adjacent to the glue outlet 3 to one end far away from the glue outlet 3, the rubber tube 2 is internally provided with a fixed pin 5 and a tension spring 6, two ends of the fixed pin 5 are connected with the inner side wall of the rubber tube, go out to be equipped with on the mouth 3 and to cover the gluey head that goes out the mouth and seal stopper 7, the one end and the fixed pin 5 of extension spring 6 are connected, and extension spring 6 keeps away from the one end of fixed pin 5 and seals stopper 7 with gluey head and be connected, and the head of gluing seals stopper 7 internal diameter and increases gradually from the one end of neighbouring extension spring to the one end of keeping away from the extension spring.

The rubber tube end section 23 is in a circular truncated cone shape. When the colloid in the rubber tube is discharged, the colloid is stressed in a balanced manner (the colloid is circumferentially stressed by the pressure brought by the inner side wall of the rubber tube).

The glue dispensing gun provides pressure to enable the glue to overcome the elasticity of the tension spring 6 and push the glue head sealing plug 7 outwards, and the glue flows out from the glue outlet 3; the solenoid valve on the glue dispensing gun is closed, the glue body is not stressed by external pressure any more, and the tension spring returns to the original position by elasticity at the moment, so that the glue head sealing plug is driven to return, the glue outlet is sealed, and the effect of preventing the glue body from leaking is realized.

Example 2

Based on the embodiment 1, as shown in fig. 2, the rubber head sealing plug 7 is in a circular truncated cone shape, and the rubber tube is made of a transparent plastic material.

As shown in fig. 3, the inner side wall of the rubber hose end section 23 adjacent to the rubber outlet 3 is provided with a notch 8. When the rubber head sealing plug moves towards the direction far away from the rubber outlet, the rubber body in the rubber tube can flow out along the notch groove at first, and the operability during dispensing is improved. The outer side wall of the rubber head sealing plug 7 is provided with an embedded groove 9 which is provided with a sealing ring. And a sealing ring 10 which can be tightly attached to the inner side wall of the tail section of the rubber tube is arranged on the outer side of the rubber head sealing plug. The inner side wall of the rubber tube end section contacting with the rubber head sealing plug is provided with a groove 11, and the groove is provided with a sealing ring gasket 12. The sealing ring gasket arranged on the end section of the rubber pipe can ensure excellent sealing performance.

Claims

1. The utility model provides a head is glued in point of leak protection glue, is including going into gluey mouth, rubber tube, play gluey mouth, goes into gluey mouth and is connected with a glue gun, and the rubber tube is including containing rubber tube anterior segment, the rubber tube middle section of going into gluey mouth and the rubber tube end section that is equipped with out gluey mouth, and rubber tube anterior segment, rubber tube middle section and rubber tube end section arrange in proper order from a left side to the right side, and rubber tube anterior segment inside wall is equipped with the internal thread with a glue gun adaptation, and the internal diameter of rubber tube end section is from neighbouring one end of going out gluey mouth to keeping away from the one end of going out gluey mouth crescent, its characterized in that, inside fixed pin, extension spring of being equipped with of rubber tube, the fixed pin both ends are connected with the fixed pin, and the one end and the rubber head of extension spring are kept away from the fixed pin are sealed and are filled in and are connected.

2. The glue dripping head for preventing glue leakage according to claim 1, wherein the end section of the rubber tube is in a circular truncated cone shape.

3. The glue dripping head for preventing glue leakage according to claim 1, wherein the glue sealing plug is in a circular truncated cone shape.

4. The glue dripping head for preventing glue leakage according to claim 2, wherein the glue tube is made of transparent plastic material.

5. The glue dripping head for preventing glue leakage according to claim 1, wherein the inner side wall of the rubber tube end section adjacent to the glue outlet is provided with a notch.

6. The glue dripping head for preventing glue leakage of claim 1, wherein the glue head sealing plug is provided with a caulking groove on the outer side wall, and the caulking groove is provided with a sealing ring.

7. The glue dripping head for preventing glue leakage of claim 5, wherein the inner side wall of the rubber tube end section contacting with the sealing plug of the glue dripping head is provided with a groove, and the groove is provided with a sealing ring gasket.