CN216756987U - Liquid crystal glass dispensing valve mechanism - Google Patents
Liquid crystal glass dispensing valve mechanism Download PDFInfo
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- CN216756987U CN216756987U CN202122958011.9U CN202122958011U CN216756987U CN 216756987 U CN216756987 U CN 216756987U CN 202122958011 U CN202122958011 U CN 202122958011U CN 216756987 U CN216756987 U CN 216756987U
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- glue
- valve body
- liquid crystal
- crystal glass
- dispensing
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Abstract
The utility model relates to the field of machining, in particular to a liquid crystal glass dispensing valve mechanism.
Description
Technical Field
The utility model relates to the field of machining, in particular to a liquid crystal glass dispensing valve mechanism.
Background
The front side and the back side of an LCD liquid crystal glass product with the PIN need to be sealed by UV glue, and the PIN is fixed on the LCD liquid crystal glass after the UV glue is cured by ultraviolet light.
The prior art needs to seal glue and coat the front and back surfaces of an LCD (liquid crystal display) liquid crystal glass product when the back surface of the LCD liquid crystal glass product is coated, due to the interference of PIN (personal identification number) feet, a long glue coating needle head needs to be used for coating, the gluing position is inaccurate after the commonly used glue coating needle head is too long, the phenomenon of low repeated precision of needle head replacement can occur after the needle head is replaced, the glue closing delay condition can occur due to the residual pressure during glue dispensing, and the glue dispensing valve can continue to discharge glue after the glue closing, so that the defects of poor glue closing stability and dripping leakage are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to make up for the defects of the prior art and provides a liquid crystal glass dispensing valve mechanism to solve the problems that the existing liquid crystal glass dispensing valve mechanism is inaccurate in gluing position, low in repeated precision after a needle is replaced and delayed in glue closing after the needle is replaced.
Specifically, the technical scheme of the utility model is as follows:
a liquid crystal glass dispensing valve mechanism is used for fixing a PIN on LCD liquid crystal glass; the liquid crystal glass dispensing valve mechanism comprises a glue valve body, the inside of the glue valve body is of a hollow structure, the inside of the glue valve body comprises a valve body, a glue inlet body and a glue outlet body, the bottom of the glue outlet body is provided with a nozzle, the center of the nozzle penetrates through a spray hole, and a firing pin is arranged in the spray hole; the rubber valve comprises a rubber valve body, a firing pin, a needle tube, a precise dispensing needle head and a rubber sealing ring, wherein the firing pin extends out of the rubber valve body, the needle tube is arranged on the outer side of the firing pin, the tail end of the needle tube is provided with the precise dispensing needle head, and the rubber sealing ring is arranged between the precise dispensing needle head and the needle tube.
Further, a glue inlet and a glue outlet are respectively formed in the side wall and the bottom of the glue inlet body, the striker penetrates through the glue inlet body and the glue outlet body, and the striker is connected with a piston in the valve body. During dispensing, the glue body enters from the glue inlet and is extruded to the glue outlet by the firing pin from the glue outlet, and the piston can move up and down in the valve body to drive the firing pin to move.
Furthermore, the firing pin comprises a connecting rod and a firing pin head, the firing pin head is conical, the firing pin head is arranged at the bottom of the connecting rod, and the top of the connecting rod is in threaded connection with the piston, so that the firing pin can be conveniently mounted and dismounted.
Further, an air inlet is formed in the top of the valve body, a stop block is arranged at the joint of the valve body and the rubber inlet body, a through hole is formed in the center of the stop block, the striker penetrates through the through hole, a spring is sleeved on the striker positioned between the stop block and the piston, after high-pressure gas is injected into the air inlet on the valve body, the piston is rapidly pressed down to drive the striker to move downwards, the rubber body is extruded, the spring is stressed, deformed and compressed, after the high-pressure gas injection is stopped, the spring resets, and the piston is bounced by the spring to return to an initial position.
Further, the glue valve body is close to one side of accurate some syringe needle is equipped with a valve body heating temperature control module, valve body heating temperature control module with the needle tubing links to each other, and is right the temperature control heating of needle tubing guarantees that different mobile glue reaches roughly certain mobility, guarantees that the play of glue is glued stably evenly, reduces the glue wire drawing to and pile up the unusual incidence of gluing.
Further, valve body heating temperature control module includes a heating element and a heating piece, be equipped with a temperature control probe on the heating piece, valve body heating temperature control module electric connection a temperature control system, the heating element is the heat source, and the heating piece heats the needle tubing, and the temperature control probe carries out temperature detection in real time and is convenient for temperature control, in order to adjust the temperature size through temperature control system.
Further, the accurate syringe needle of gluing with the needle tubing is for dismantling threaded connection, is convenient for dismantle the accurate syringe needle of gluing of changing not unidimensional model according to the processing demand.
Furthermore, the piston with the contact position of valve body is provided with a sealing washer, avoids high-pressure gas to get into the colloid, influences out and glues.
The utility model has the advantages that the firing PIN extends out of the glue valve body, glue sealing is carried out outside the valve body through the needle tube, the precise glue dispensing needle head is assembled at the tail end of the needle tube, the position interference of a PIN foot on coating can be perfectly avoided by prolonging the length of the firing PIN and connecting the precise glue dispensing needle head through the needle tube, the repeated precision of needle head replacement can be ensured when the needle head is replaced, and meanwhile, a glue closing sealing ring is arranged between the precise glue dispensing needle head and the needle tube, so that the glue closing position of the glue dispensing valve mechanism is advanced, the condition of glue closing delay is solved, and the instability of glue closing caused by the glue closing delay is avoided.
Drawings
Fig. 1 is a schematic structural view of a liquid crystal glass dispensing valve mechanism provided in a first embodiment.
Fig. 2 is an exploded view of the liquid crystal glass dispensing valve according to the first embodiment.
In the figure: 1 glue valve body, 2 firing PINs, 3 needle tubes, 4 glue sealing rings, 5 precision glue dispensing pinheads, 6 heating bodies, 7 heating blocks, 8 temperature control probes and 9PIN PINs.
Detailed Description
The embodiments described below are only a part of the embodiments of the present invention, and not all of them. 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 invention.
Referring to fig. 1 and 2, the embodiment provides a liquid crystal glass dispensing valve mechanism for fixing a PIN 9 on an LCD liquid crystal glass; the liquid crystal glass dispensing valve mechanism comprises a glue valve body 1, wherein the inside of the glue valve body 1 is of a hollow structure, the inside of the glue valve body 1 comprises a valve body, a glue inlet body and a glue outlet body, the bottom of the glue outlet body is provided with a nozzle, the center of the nozzle penetrates through a spray hole, and a firing pin 2 is arranged in the spray hole; the firing PIN 2 extends out of the glue valve body 1, and the length of the firing PIN 2 is prolonged, so that position interference caused by a PIN foot on coating can be perfectly avoided. The outer side of the firing pin 2 is provided with a needle tube 3, the tail end of the needle tube 3 is provided with a precise dispensing needle head 5, and the needle head replacement repeated precision can be ensured when the needle head is replaced by connecting the needle tube 3 with the precise dispensing needle head 5. A glue closing sealing ring 4 is arranged between the precise glue dispensing needle head 5 and the needle tube 3, so that the glue closing position of the glue dispensing valve mechanism is advanced, the problem of glue closing delay is solved, and the instability of glue closing caused by the glue closing delay is avoided.
The side wall and the bottom of the glue inlet body are respectively provided with a glue inlet and a glue outlet, the firing pin 2 penetrates through the glue inlet body and the glue outlet body, and the firing pin 2 is connected with a piston in the valve body. During dispensing, the glue body enters from the glue inlet and is extruded to the glue outlet by the firing pin from the glue outlet, and the piston can move up and down in the valve body to drive the firing pin to move. The improved rubber sealing valve is characterized in that an air inlet is formed in the top of the valve body, a stop block is arranged at the joint of the valve body and the rubber inlet body, a through hole is formed in the center of the stop block, the striker 2 penetrates through the through hole, a spring is sleeved on the striker 2 between the stop block and the piston, after high-pressure gas is injected into the air inlet on the valve body, the piston is rapidly pressed down to drive the striker to move downwards, the rubber body is extruded out, the spring is stressed, deformed and compressed, after the injection of the high-pressure gas is stopped, the spring is reset, and the piston is bounced by the spring to return to an initial position. The firing pin 2 comprises a connecting rod and a firing pin head, the firing pin head is conical, the firing pin head is arranged at the bottom of the connecting rod, and the top of the connecting rod is in threaded connection with the piston, so that the firing pin can be conveniently mounted and dismounted.
Preferably, the precision dispensing needle head 5 and the needle tube 3 are detachably connected through threads, so that the precision dispensing needle head 5 with different sizes and models can be conveniently detached and replaced according to processing requirements. The piston with the contact position of valve body is provided with a sealing washer, avoids high-pressure gas to get into the colloid, influences out to glue.
Glue the valve body and be close to one side of accurate some glue syringe needle 5 is equipped with a valve body heating accuse temperature module, valve body heating accuse temperature module with needle tubing 3 links to each other, and is right the accuse temperature heating of needle tubing 3 guarantees that different mobile glue reaches roughly certain mobility, guarantees that the play of glue is glued stably evenly, reduces the glue wire drawing to and pile up the unusual incidence of gluing. The valve body heating temperature control module comprises a heating body 6 and a heating block 7, a temperature control probe 8 is arranged on the heating block 7, the valve body heating temperature control module is electrically connected with a temperature control system, the heating body 6 is a heat source, the heating block 7 heats the needle tube, the temperature control probe 8 carries out temperature detection in real time so as to control the temperature, and the temperature control probe can adjust the temperature through the temperature control system.
According to the utility model, the firing PIN extends out of the glue valve body, glue sealing is carried out outside the valve body through the needle tube, the precise glue dispensing needle head is assembled at the tail end of the needle tube, the position interference of a PIN foot on coating can be perfectly avoided by prolonging the length of the firing PIN and connecting the precise glue dispensing needle head through the needle tube, the repeated precision of needle head replacement can be ensured when the needle head is replaced, and meanwhile, a glue closing sealing ring is arranged between the precise glue dispensing needle head and the needle tube, so that the glue closing position of the glue dispensing valve mechanism is advanced, the condition of glue closing delay is solved, and the instability of glue closing caused by the glue closing delay is avoided.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the utility model is not limited by the scope of the appended claims.
Claims (8)
1. A liquid crystal glass dispensing valve mechanism is used for fixing a PIN on LCD liquid crystal glass; the liquid crystal glass dispensing valve mechanism comprises a glue valve body, the inside of the glue valve body is of a hollow structure, the inside of the glue valve body comprises a valve body, a glue inlet body and a glue outlet body, the bottom of the glue outlet body is provided with a nozzle, the center of the nozzle penetrates through a spray hole, and a firing pin is arranged in the spray hole; the glue valve is characterized in that the firing pin extends out of the glue valve body, a needle tube is arranged on the outer side of the firing pin, a precise glue dispensing needle head is arranged at the tail end of the needle tube, and a glue sealing ring is arranged between the precise glue dispensing needle head and the needle tube.
2. The liquid crystal glass dispensing valve mechanism according to claim 1, wherein a glue inlet and a glue outlet are respectively formed in the side wall and the bottom of the glue inlet, the striker penetrates through the glue inlet and the glue outlet, and the striker is connected with a piston in the valve body.
3. The liquid crystal glass dispensing valve mechanism according to claim 2, wherein the plunger comprises a conical plunger head and a conical plunger head, the plunger head is disposed at the bottom of the connecting rod, and the top of the connecting rod is in threaded connection with the piston.
4. The liquid crystal glass dispensing valve mechanism according to claim 2, wherein an air inlet is formed in the top of the valve body, a stopper is arranged at a joint of the valve body and the glue inlet body, a through hole is formed in the center of the stopper, the striker penetrates through the through hole, and a spring is sleeved on the striker positioned between the stopper and the piston.
5. The liquid crystal glass dispensing valve mechanism according to claim 1, wherein a valve body heating temperature control module is arranged on one side of the glue valve body close to the precise dispensing needle head, and the valve body heating temperature control module is connected with the needle tube.
6. The liquid crystal glass dispensing valve mechanism according to claim 1, wherein the valve body heating temperature control module comprises a heating body and a heating block, a temperature control probe is arranged on the heating block, and the valve body heating temperature control module is electrically connected with a temperature control system.
7. The liquid crystal glass dispensing valve mechanism according to claim 1, wherein the precise dispensing needle head is detachably connected with the needle tube by a thread.
8. The liquid crystal glass dispensing valve mechanism according to claim 2, wherein a sealing ring is disposed at a contact position of the piston and the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122958011.9U CN216756987U (en) | 2021-11-26 | 2021-11-26 | Liquid crystal glass dispensing valve mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122958011.9U CN216756987U (en) | 2021-11-26 | 2021-11-26 | Liquid crystal glass dispensing valve mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216756987U true CN216756987U (en) | 2022-06-17 |
Family
ID=81964301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122958011.9U Active CN216756987U (en) | 2021-11-26 | 2021-11-26 | Liquid crystal glass dispensing valve mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216756987U (en) |
-
2021
- 2021-11-26 CN CN202122958011.9U patent/CN216756987U/en active Active
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