CN210146360U - High-precision injection valve - Google Patents
High-precision injection valve Download PDFInfo
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- CN210146360U CN210146360U CN201920618445.4U CN201920618445U CN210146360U CN 210146360 U CN210146360 U CN 210146360U CN 201920618445 U CN201920618445 U CN 201920618445U CN 210146360 U CN210146360 U CN 210146360U
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- injection valve
- precision injection
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Abstract
The utility model relates to the field of dispensing equipment, in particular to a high-precision injection valve, which comprises a cavity, wherein a firing pin is arranged in the cavity in a vertically penetrating and sliding manner along the central axis of the cavity; a nozzle seat is fixedly arranged at the bottom end of the cavity, and a nozzle is connected with a glue outlet at the bottom end of the nozzle seat; the high-precision injection valve also comprises a micrometer used for limiting the stroke of the firing pin, and the firing pin is connected with the micrometer through an elastic support; the high-precision injection valve also comprises a glue supply part for supplying materials into the nozzle seat; the high-precision injection valve also comprises a solenoid valve component used for lifting the firing pin in the cavity. The high-precision injection valve of the embodiment adopts an injection mode for operation, mainly aims at silver glue pressure welding operation, and has the advantages of controllable glue dispensing amount, capability of avoiding the risk of needle head pressure wire breakage arc, no glue scattering, good stability and simple maintenance.
Description
Technical Field
The utility model relates to an equipment field is glued to the point, specifically is a high-accuracy injection valve.
Background
In the traditional technology, the following two methods are generally used in the silver paste pressure welding market:
a pneumatic needle tube type: a small needle head is arranged on the charging barrel filled with the silver colloid, the needle head is close to the welding point, and the silver colloid is extruded to the welding point through air pressure. The disadvantages are as follows: the needle head needs to be close to a welding point, and the wire arc is easily broken or bent; glue which is higher than the welding point cannot be dispensed on the welding point, so that leakage points are caused, and the next dispensing amount is increased suddenly; the amount of glue is large.
The needle head is coated: the pinhead is dipped with a glue on the turntable filled with the silver glue, and then the pinhead is coated on the welding spot. The disadvantages are as follows: the glue amount is small, the needle head needs to coat the glue on the welding point at a low enough height, the wire is easy to be broken, and the wire shortening rate is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high-accuracy injection valve to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a high-precision injection valve comprises a cavity, wherein a firing pin penetrates through the cavity in a sliding manner up and down along the central axis of the cavity; a nozzle seat is fixedly arranged at the bottom end of the cavity, and a nozzle is connected with a glue outlet at the bottom end of the nozzle seat;
the high-precision injection valve also comprises a micrometer used for limiting the stroke of the firing pin, and the firing pin is connected with the micrometer through an elastic support;
the high-precision injection valve also comprises a glue supply part for supplying materials into the nozzle seat;
the high-precision injection valve also comprises a solenoid valve component used for lifting the firing pin in the cavity.
As a further aspect of the present invention: the elastic supporting piece comprises a pressure spring and a pressure cap, wherein the pressure cap is positioned between the firing pin and the micrometer, the pressure spring is arranged in the micrometer seat, and the pressure spring is sleeved on the outer ring of the bottom of the micrometer and the outer ring of the upper portion of the pressure cap.
As a further aspect of the present invention: the micrometer is fixedly arranged on the micrometer seat in an adjustable mode through the micrometer locking screw, the micrometer seat is fixedly arranged at the top of the cavity through the micrometer fixing screw, and the micrometer is locked and fixed through the micrometer locking handle matched with the micrometer locking screw after the stroke of the micrometer is adjusted, so that the glue outlet amount of the injection valve can be flexibly set.
As a further aspect of the present invention: an oil seal is also arranged between the firing pin and the cavity.
As a further aspect of the present invention: the cavity and the nozzle seat are sealed through a sealing gasket A;
the bottom of the nozzle seat is also provided with a nozzle cap which plays a role in protecting the nozzle in a detachable mode.
As a further aspect of the present invention: the glue supply part comprises a glue cylinder seat fixedly arranged on one side of the nozzle seat through a glue cylinder seat fixing screw, a fluid groove is formed in the glue cylinder seat, and the discharge end of the fluid groove is communicated with the inner cavity of the nozzle seat; and the feeding end of the fluid tank is connected with a discharge hole at the bottom end of the rubber cylinder arranged on the rubber cylinder seat through a Ruhr adapter.
As a further aspect of the present invention: a sealing gasket B is also arranged between the discharge end of the fluid groove and the inner cavity of the nozzle seat
As a further aspect of the present invention: the solenoid valve assembly comprises a Fisher solenoid valve which is fixedly arranged on a solenoid valve fixing seat A and a solenoid valve fixing seat B, and the solenoid valve fixing seat A is fixedly arranged on one side of the cavity; the electromagnetic valve fixing seat B is fixedly arranged on the other side of the electromagnetic valve fixing seat A through an electromagnetic valve fixing screw; the gas outlet end of the Fisher electromagnetic valve is connected with the inner cavity of the cavity through a gas pipe connector, and an O-shaped sealing ring is arranged at the joint of the gas pipe connector and the cavity.
Compared with the prior art, the utility model discloses high-accuracy injection valve's beneficial effect is: when the high-precision injection valve provided by the embodiment of the utility model is used, the micrometer is used for limiting the lifting stroke of the firing pin, air is supplied to the cavity through the electromagnetic valve component, the firing pin is lifted to the highest point of the stroke range, at the moment, the pressure spring is compressed, a gap is formed between the nozzle and the firing pin, and glue is introduced into the gap through the glue supply part (the glue supply part and the electromagnetic valve component are opened for a long time, and the glue flows out in a line shape and is used for air exhaust); then the electromagnetic valve component is closed, the striker rapidly impacts the nozzle downwards under the action of the pressure spring, and the glue in the gap is sprayed out, so that the dispensing purpose is realized.
In conclusion, the high-precision injection valve of the embodiment adopts an injection mode to operate, mainly aiming at silver glue pressure welding operation, and realizes controllable glue dispensing amount; the jet type needle head does not need to be close to a welding spot, so that the risk of pressing and breaking a wire arc of the needle head is avoided; glue can not be scattered, and the glue is always hemispherical; the stability is good, the cleaning agent can work for a long time, and is cleaned once in 24 hours; the maintenance is simple, and only the nozzle and the glue inlet part are cleaned.
Drawings
In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
Fig. 1 is an axonometric drawing schematic diagram of a high-precision injection valve provided by an embodiment of the present invention.
Fig. 2 is a top view of a high-precision injection valve according to an embodiment of the present invention.
Fig. 3 is a sectional view of section a-a in fig. 2.
Fig. 4 is a sectional view of section B-B in fig. 2.
Fig. 5 is an exploded view of a high-precision injection valve according to an embodiment of the present invention.
In the figure: 1-micrometer, 2-micrometer seat, 3-micrometer locking screw, 4-micrometer locking handle, 5-micrometer fixing screw, 6-pressure spring, 7-pressure cap, 8-firing pin, 9-oil seal, 10-cavity, 11-sealing gasket A, 12-nozzle seat, 13-nozzle cap, 14-nozzle, 15-sealing gasket B, 16-rubber cylinder seat, 17-luer adapter, 18-rubber cylinder seat fixing screw, 19-O type sealing ring, 20-electromagnetic valve fixing seat A, 21-air pipe joint, 22-Fisher electromagnetic valve, 23-electromagnetic valve fixing seat B, 24-electromagnetic valve fixing screw and 25-rubber cylinder.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Please refer to fig. 1-5, in the embodiment of the present invention, a high precision injection valve, includes a cavity 10, it is equipped with the firing pin 8 to run through the slip from top to bottom along its central axis in the cavity 10, and the firing pin 8 adopts the tungsten steel material, there is micrometer seat 2 at the top of cavity 10 through 5 fixed mounting of micrometer set screw, and micrometer seat 2 is last to be provided with micrometer 1 through micrometer locking screw 3 adjustable fixation, through operation behind the stroke of adjustment micrometer 1 with micrometer locking screw 3 matched with micrometer locking handle 4 will micrometer 1 locks fixedly to can be nimble set for this injection valve's the volume of glue that goes out.
Further, in the embodiment of the present invention, the striker 8 is connected to the micrometer 1 through an elastic support member; the elastic support comprises a pressure spring 6 and a pressure cap 7; a pressure cap 7 is arranged in the micrometer seat 2 along the central axis of the micrometer seat, the pressure cap 7 is positioned between the firing pin 8 and the micrometer 1, the pressure spring 6 is arranged in the micrometer seat 2, and the pressure spring 6 is sleeved on the outer ring of the bottom of the micrometer 1 and the outer ring of the upper portion of the pressure cap 7.
Further, an oil seal 9 is arranged between the firing pin 8 and the cavity 10; the bottom end of the cavity 10 is fixedly provided with a nozzle holder 12, and the cavity 10 and the nozzle holder 12 are sealed through a sealing gasket A11; the bottom of nozzle holder 12 is gone out to glue the mouth and is connected and be equipped with nozzle 14, just the bottom of nozzle holder 12 is still the reassembling type install right nozzle cap 13 that nozzle 14 plays the guard action.
Referring to fig. 3 and 4, in an embodiment of the present invention, the high-precision injection valve further includes a glue supply portion for supplying a material into the nozzle holder 12, the glue supply portion includes a glue cartridge holder 16 fixedly disposed on one side of the nozzle holder 12 by a glue cartridge holder fixing screw 18, a fluid slot is disposed in the glue cartridge holder 16, a discharge end of the fluid slot is communicated with an inner cavity of the nozzle holder 12, and a sealing gasket B15 is further disposed between the discharge end of the fluid slot and the inner cavity of the nozzle holder 12; the feeding end of the fluid tank is connected with a discharge hole at the bottom end of a rubber cylinder 25 arranged on a rubber cylinder base 16 through a luer adapter 17;
further, in the embodiment of the present invention, the high-precision injection valve further includes a solenoid valve assembly for lifting the striker 8 in the cavity 10, the solenoid valve assembly includes a fisher solenoid valve 22, the fisher solenoid valve 22 is fixedly installed on a solenoid valve fixing seat a20 and a solenoid valve fixing seat B23, and the solenoid valve fixing seat a20 is fixedly installed on one side of the cavity 10; the solenoid valve fixing seat B23 is fixedly arranged on the other side of the solenoid valve fixing seat A20 through a solenoid valve fixing screw 24; the gas outlet end of the Fisher electromagnetic valve 22 is connected with the inner cavity of the cavity 10 through a gas pipe connector 21, and an O-shaped sealing ring 19 is arranged at the joint of the gas pipe connector 21 and the cavity 10.
When the high-precision injection valve provided by the embodiment of the utility model is used, the micrometer 1 is used for limiting the lifting stroke of the firing pin 8, air is supplied into the cavity 10 through the electromagnetic valve component, the firing pin 8 is lifted to the highest point of the stroke range, at the moment, the pressure spring 6 is compressed, a gap is formed between the nozzle 14 and the firing pin 8, and glue is introduced into the gap through the glue supply part (the glue supply part and the electromagnetic valve component are opened for a long time, and the glue flows out in a line shape and is used for air exhaust); then the solenoid valve assembly is closed, the striker 8 quickly impacts the nozzle 14 downwards under the action of the pressure spring 6, and the glue in the gap is sprayed out, so that the glue dispensing purpose is realized.
The embodiment of the utility model provides a high-accuracy injection valve, nozzle spray glue at solder joint 2-3 mm's height, press on the solder joint, the nozzle need not be near the solder joint, does not have the risk of crushing the bonding wire, also can not be because highly too high make glue be stained with the solder joint, and the volume of gluing is moderate
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A high-precision injection valve comprises a cavity (10), and is characterized in that a firing pin (8) penetrates through the cavity (10) in a sliding manner up and down along the central axis of the cavity;
a nozzle seat (12) is fixedly arranged at the bottom end of the cavity (10), and a nozzle (14) is connected with a glue outlet at the bottom end of the nozzle seat (12);
the high-precision injection valve also comprises a micrometer (1) used for limiting the stroke of the firing pin (8), and the firing pin (8) is connected with the micrometer (1) through an elastic supporting piece;
the high-precision injection valve also comprises a glue supply part for supplying materials into the nozzle seat (12);
the high-precision injection valve also comprises a solenoid valve component used for lifting a firing pin (8) in the cavity (10).
2. A high precision injection valve according to claim 1, characterized in that the elastic support comprises a pressure spring (6) and a pressure cap (7), wherein the pressure cap (7) is located between the striker (8) and the micrometer (1);
the pressure spring (6) is arranged in the micrometer seat (2), and the pressure spring (6) is sleeved on the outer ring of the bottom of the micrometer (1) and the outer ring of the upper part of the pressure cap (7).
3. The high-precision injection valve according to claim 2, wherein the micrometer (1) is adjustably and fixedly arranged on the micrometer base (2) through a micrometer locking screw (3), and the micrometer base (2) is fixedly arranged at the top of the cavity (10) through a micrometer fixing screw (5);
after the stroke of the micrometer (1) is adjusted, the micrometer (1) is locked and fixed by operating a micrometer locking handle (4) matched with the micrometer locking screw (3).
4. A high precision injection valve according to any of claims 1-3, characterised in that an oil seal (9) is also provided between the striker (8) and the chamber (10).
5. A high precision injection valve according to any of claims 1-3, characterised in that the chamber (10) is sealed to the nozzle seat (12) by means of a sealing gasket a (11);
the bottom end of the nozzle seat (12) is also detachably provided with a nozzle cap (13) which plays a role in protecting the nozzle (14).
6. A high-precision injection valve according to claim 3, wherein said glue supplying portion comprises a glue cartridge holder (16) fixedly provided at one side of said nozzle holder (12) by a glue cartridge holder fixing screw (18);
a fluid groove is formed in the rubber cylinder seat (16), and the discharge end of the fluid groove is communicated with the inner cavity of the nozzle seat (12); the feed end of the fluid tank is connected with a discharge hole at the bottom end of a rubber cylinder (25) arranged on a rubber cylinder seat (16) through a luer adapter (17).
7. A high precision injection valve according to claim 6 characterized in that a sealing gasket B (15) is also provided between the discharge end of the fluid slot and the inner cavity of the nozzle holder (12).
8. A high precision injection valve according to claim 1, 2, 3 or 6 characterized in that the solenoid valve assembly comprises a Fisher solenoid valve (22), the Fisher solenoid valve (22) is fixedly mounted on a solenoid valve fixing seat A (20) and a solenoid valve fixing seat B (23), the solenoid valve fixing seat A (20) is fixedly mounted on one side of the cavity (10);
the electromagnetic valve fixing seat B (23) is fixedly arranged on the other side of the electromagnetic valve fixing seat A (20) through an electromagnetic valve fixing screw (24); the air outlet end of the Fisher electromagnetic valve (22) is connected with the inner cavity of the cavity (10) through an air pipe connector (21).
9. A high precision injection valve according to claim 8, characterized in that the connection of said air pipe joint (21) and cavity (10) is provided with an O-ring seal (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920618445.4U CN210146360U (en) | 2019-04-30 | 2019-04-30 | High-precision injection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920618445.4U CN210146360U (en) | 2019-04-30 | 2019-04-30 | High-precision injection valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210146360U true CN210146360U (en) | 2020-03-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920618445.4U Active CN210146360U (en) | 2019-04-30 | 2019-04-30 | High-precision injection valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210146360U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113798126A (en) * | 2021-09-17 | 2021-12-17 | 深圳市腾盛精密装备股份有限公司 | Fluid assembly and injection valve |
-
2019
- 2019-04-30 CN CN201920618445.4U patent/CN210146360U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113798126A (en) * | 2021-09-17 | 2021-12-17 | 深圳市腾盛精密装备股份有限公司 | Fluid assembly and injection valve |
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