CN202224285U - High-speed injection valve - Google Patents
High-speed injection valve Download PDFInfo
- Publication number
- CN202224285U CN202224285U CN2011202837614U CN201120283761U CN202224285U CN 202224285 U CN202224285 U CN 202224285U CN 2011202837614 U CN2011202837614 U CN 2011202837614U CN 201120283761 U CN201120283761 U CN 201120283761U CN 202224285 U CN202224285 U CN 202224285U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- nozzle
- striker
- coating cavity
- coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a high-speed injection valve which belongs to an injection device and comprises a nozzle, a firing pin, a coating device, a return spring and an air cylinder. The high-speed injection valve is simple in structure; the communication part between the air cylinder and a coating cavity is provided with a sealing member which is used for sealing a gap of the communication part and effectively preventing coating from entering the gap of the communication part; a positioning sleeve which is used for preventing the firing pin from swaying leftwards and rightwards is arranged above the sealing member; by means of the positioning sleeve and the sealing member, the up and down motion of the firing pin is better ensured and the injection precision is improved; the connection part between the nozzle and the coating cavity is provided with an impact seat; the contact surface between the impact seat and the firing pin is a smooth conical concave surface, through which the explosive force during the impact is increased, so that the injection effect is better and the injection quality is higher; the pore diameter of the nozzle is gradually decreased from a feeding end to a discharging end, by means of the pore diameter contracting mode, the injection speed of the coating is increased; and through the injection valve provided by the utility model, the problems that the existing injection precision is lower and the speed is slower are solved.
Description
Technical field
The utility model belongs to the injection apparatus technical field, is specifically related to a kind of high velocity jet valve.
Background technology
In electronics, medicine equipment, automobile and other industries; Injection valve is used to contactless high viscosity substance a small amount of or droplet is assigned on substrate or the workpiece; Said high viscosity substance comprises solder flux, soldering paste, adhesive, oil, sealed polymer, silicone etc., and common this high viscosity substance at room temperature can be in himself gravity current downflow.
Existing injection valve generally comprises nozzle, striker, application device and cylinder; Application device comprises housing, forms the coating cavity in the housing, and housing is provided with the charging aperture that is communicated with the coating cavity; Nozzle is fixedly connected with the application device lower part of frame, and is docked and connected with the lower end of coating cavity; Said striker is arranged in the coating cavity, and cylinder is positioned at application device top, and the cylinder body of cylinder is fixedly connected with application device, and striker is fixedly connected with the piston of cylinder, is provided with the cylinder body that acts on and the return spring between the piston in the said cylinder.During work, coating to be sprayed to the charging of coating cavity, starts cylinder through charging aperture simultaneously; Piston moves up, striker with on move, the passage that the coating cavity leads to nozzle is opened; Coating to be sprayed gets into nozzle through the coating cavity; This moment shifter cylinder, striker resets under the elastic force effect of return spring, the coating to be sprayed that make to get into nozzle is ejected.
Though existing injection valve can satisfy actual demand basically; But still have certain defective: 1, because striker directly is arranged in the coating cavity, the internal diameter of coating cavity is greater than the striker diameter, when moving up and down the bump nozzle at every turn; Skew about being prone to take place, accuracy of spray is relatively poor; 2, existing nozzle adopts fixing aperture, and jet velocity is slower when the aperture is big, when the aperture hour, coating is difficult for getting into the feed end of nozzle, jeting effect is relatively poor.
Summary of the invention
In order to address the above problem, the utility model provides a kind of simple in structure, high velocity jet valve that accuracy of spray is higher.
A kind of high velocity jet valve comprises nozzle, striker, application device, return spring and cylinder, and said application device comprises housing, forms the coating cavity in the housing, and the housing side is provided with the charging aperture that is communicated with the coating cavity; Nozzle is fixedly connected with the lower part of frame of application device, and is docked and connected with the lower end of coating cavity; Said cylinder is positioned at application device top, and striker is fixedly connected with the piston of cylinder, and is arranged in the coating cavity, and return spring is arranged between the cylinder body and piston of cylinder, forces the closed coating cavity of striker to lead to the passage of nozzle;
Said cylinder is provided with the seal that seals connection place slit with the place of connection of coating cavity, and said seal top is provided with the positioning sleeve that prevents the striker double swerve, and said seal and positioning sleeve inwall are slidingly connected with striker respectively;
Said nozzle is provided with the bump seat with the place of connection of coating cavity, and said bump seat is level and smooth taper concave surface with the contact-making surface of striker;
The aperture of said nozzle is reduced to discharge end by feed end gradually.
Wherein, the aperture of said nozzle is 0.1mm-0.25mm.
Wherein, the feed end aperture of said nozzle is 0.2mm, and the discharge end aperture is 0.15mm.
Wherein, the junction of the housing of said cylinder and application device is respectively equipped with buckle and the draw-in groove that matches each other, and cylinder detachably engages with draw-in groove through buckle with application device and is connected.
Wherein, be provided with the guide cover with the coating distributing nozzle in the coating cavity between said charging aperture and the nozzle, said guide cover inwall and striker are slidingly connected.
Wherein, said cylinder sidewall is provided with the air inlet that is communicated with cylinder block.
Wherein, the upper end of said cylinder block is provided with the stroke adjusting device of control striker stroke, and said stroke adjusting device is fixedly connected with return spring.
Wherein, said injection valve also comprises the high-speed electromagnetic valve of control cylinder motion, and said high-speed electromagnetic valve is connected with cylinder.
The beneficial effect of the utility model is: the utility model is simple in structure; Cylinder is provided with the seal that seals connection place slit with the place of connection of coating cavity; Seal prevents that effectively coating from getting into the slit of connection place; The seal top is provided with the positioning sleeve that prevents the striker double swerve, and positioning sleeve and seal have better guaranteed moving up and down of striker, have improved accuracy of spray; Said nozzle is provided with the bump seat with the place of connection of coating cavity, and said bump seat is level and smooth taper concave surface with the contact-making surface of striker, the explosive force the when striking face of bump seat adopts the concave surface of taper can increase bump, and jeting effect is better, and jet quality is higher; The aperture of said nozzle is reduced to discharge end by feed end gradually, and nozzle adopts the mode of shrinking the aperture, has increased the jet velocity of coating.
Description of drawings
Fig. 1 is the structural representation of the high velocity jet valve of the utility model.
Fig. 2 is the structural representation at another visual angle of Fig. 1.
Fig. 3 is that A-A of Fig. 2 is to generalized section.
Fig. 4 is confined explosion's sketch map of the high velocity jet valve of the utility model.
Description of reference numerals is following:
1-nozzle; 2-striker;
3-guide cover; 4-seal;
5-positioning sleeve; 6-coating cavity;
7-housing; 8-clamp ring;
9-cylinder; 10-return spring;
11-stroke adjusting device; 12-charging aperture;
13-air inlet; 14-buckle;
15-bump seat; 16-draw-in groove.
The specific embodiment
For the purpose, technical scheme and the advantage that make utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.
Referring to Fig. 1 to Fig. 4, a kind of high velocity jet valve comprises nozzle 1, striker 2, application device, return spring 10 and cylinder 9, and said application device comprises housing 7, forms coating cavity 6 in the housing 7, and housing 7 sides are provided with the charging aperture 12 that is communicated with coating cavity 6; Nozzle 1 is fixedly connected with the bottom of the housing 7 of application device, and is docked and connected with the lower end of coating cavity 6; Said cylinder 9 is positioned at application device top, and striker 2 is fixedly connected with the piston of cylinder 9, and is arranged in the coating cavity 6, and return spring 10 is arranged between the cylinder body and piston of cylinder 9, forces striker 2 closed coating cavitys 6 to lead to the passage of nozzle 1; Said cylinder 9 is respectively equipped with the buckle 14 and draw-in groove 16 that matches each other with the junction of the housing 7 of application device, and 16 engagings are connected cylinder 9 with draw-in groove through buckle 14 with application device; Being provided with between said cylinder 9 and the application device increases cylinder 9 is connected compactness with application device clamp ring 8; Cylinder 9 is provided with the seal 4 that seals connection place slit with the place of connection of coating cavity 6, and said seal 4 tops are provided with the positioning sleeve 5 that prevents striker 2 double swerves, and said seal 4 is slidingly connected with striker 2 respectively with positioning sleeve 5 inwalls.
The utility model is simple in structure, and 16 detachable engagings are connected cylinder 9 with draw-in groove through buckle 14 with application device, and it is comparatively convenient, time saving and energy saving to unpick and wash; Being provided with between cylinder 9 and the application device increases cylinder 9 is connected compactness with application device clamp ring 8; Rotation lock collar 8; Can lock or being connected of loosening cylinder 9 and application device, clamp ring 8 has guaranteed to connect closely on the one hand, has also increased the convenience of dismounting on the other hand; Cylinder 9 is provided with the seal 4 that seals connection place slit with the place of connection of coating cavity 6; Seal 4 prevents that effectively coating from getting into the slit of connection place; Seal 4 tops are provided with the positioning sleeve 5 that prevents striker 2 double swerves; Positioning sleeve 5 has better guaranteed moving up and down of striker 2 with seal 4, has improved accuracy of spray.
Wherein, said nozzle 1 is provided with bump seat 15 with the place of connection of coating cavity 6, and said bump seat 15 is level and smooth taper concave surface with the contact-making surface of striker 2.Explosive force when the striking face of bump seat 15 adopts the concave surface of taper can increase bump, jeting effect is better, and jet quality is higher.
Wherein, the aperture of said nozzle 1 is reduced to discharge end by feed end gradually.Nozzle 1 adopts the mode of shrinking the aperture, has increased the jet velocity of coating.
Wherein, the aperture of said nozzle 1 is 0.1mm-0.25mm.The optimum aperture of said nozzle 1 is: the feed end aperture is 0.2mm, and the discharge end aperture is 0.15mm.
Wherein, be provided with the guide cover 3 with coating distributing nozzle 1 in the coating cavity 6 between said charging aperture 12 and the nozzle 1, said guide overlaps 3 inwalls and striker 2 is slidingly connected.Guide cover 3 can be fixed bump seat 15 and nozzle 1 on the one hand, on the other hand coating is imported to the concave surface place of bump seat 15.
Wherein, said cylinder 9 sidewalls are provided with the air inlet 13 that is communicated with cylinder 9 cylinder bodies.
Wherein, the upper end of said cylinder 9 cylinder bodies is provided with the stroke adjusting device 11 of control striker 2 strokes, and said stroke adjusting device 11 is fixedly connected with return spring 10.Stroke adjusting device 11 acts on the return spring 10, and then the movement travel of control striker 2, finally reaches the jet velocity of control injection valve and the purpose of emitted dose.
Wherein, said injection valve also comprises the high-speed electromagnetic valve of control cylinder 9 motions, and said high-speed electromagnetic valve is connected with cylinder 9.
Above content is merely the preferred embodiment of the utility model; For those of ordinary skill in the art; According to the thought of the utility model, the part that on the specific embodiment and range of application, all can change, this description should not be construed as the restriction to the utility model.
Claims (8)
1. a high velocity jet valve comprises nozzle, striker, application device, return spring and cylinder, and said application device comprises housing, forms the coating cavity in the housing, and the housing side is provided with the charging aperture that is communicated with the coating cavity; Nozzle is fixedly connected with the lower part of frame of application device, and is docked and connected with the lower end of coating cavity; Said cylinder is positioned at application device top, and striker is fixedly connected with the piston of cylinder, and is arranged in the coating cavity, and return spring is arranged between the cylinder body and piston of cylinder, forces the closed coating cavity of striker to lead to the passage of nozzle; It is characterized in that: said cylinder is provided with the seal that seals connection place slit with the place of connection of coating cavity, and said seal top is provided with the positioning sleeve that prevents the striker double swerve, and said seal and positioning sleeve inwall are slidingly connected with striker respectively;
Said nozzle is provided with the bump seat with the place of connection of coating cavity, and said bump seat is level and smooth taper concave surface with the contact-making surface of striker;
The aperture of said nozzle is reduced to discharge end by feed end gradually.
2. a kind of high velocity jet valve according to claim 1 is characterized in that: the aperture of said nozzle is 0.1mm-0.25mm.
3. a kind of high velocity jet valve according to claim 2 is characterized in that: the feed end aperture of said nozzle is 0.2mm, and the discharge end aperture is 0.15mm.
4. a kind of high velocity jet valve according to claim 3 is characterized in that: the junction of the housing of said cylinder and application device is respectively equipped with buckle and the draw-in groove that matches each other, and cylinder detachably engages with draw-in groove through buckle with application device and is connected.
5. a kind of high velocity jet valve according to claim 4 is characterized in that: be provided with the guide cover with the coating distributing nozzle in the coating cavity between said charging aperture and the nozzle, said guide cover inwall and striker are slidingly connected.
6. a kind of high velocity jet valve according to claim 5, it is characterized in that: said cylinder sidewall is provided with the air inlet that is communicated with cylinder block.
7. a kind of high velocity jet valve according to claim 6 is characterized in that: the upper end of said cylinder block is provided with the stroke adjusting device of control striker stroke, and said stroke adjusting device is fixedly connected with return spring.
8. according to each described a kind of high velocity jet valve of claim 1 to 7, it is characterized in that: said injection valve also comprises the high-speed electromagnetic valve of control cylinder motion, and said high-speed electromagnetic valve is connected with cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202837614U CN202224285U (en) | 2011-08-05 | 2011-08-05 | High-speed injection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202837614U CN202224285U (en) | 2011-08-05 | 2011-08-05 | High-speed injection valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202224285U true CN202224285U (en) | 2012-05-23 |
Family
ID=46074894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202837614U Expired - Fee Related CN202224285U (en) | 2011-08-05 | 2011-08-05 | High-speed injection valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202224285U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107138352A (en) * | 2017-07-07 | 2017-09-08 | 东莞市凯格精密机械有限公司 | A kind of spraying type dispensing valve |
| 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 |
-
2011
- 2011-08-05 CN CN2011202837614U patent/CN202224285U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107138352A (en) * | 2017-07-07 | 2017-09-08 | 东莞市凯格精密机械有限公司 | A kind of spraying type dispensing valve |
| CN107138352B (en) * | 2017-07-07 | 2023-01-24 | 东莞市凯格精机股份有限公司 | Injection type dispensing valve |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202238432U (en) | Injection valve convenient to disassemble | |
| CN102615974B (en) | Liquid injection apparatus | |
| CN202224285U (en) | High-speed injection valve | |
| CN202356978U (en) | Annular spray cooling structure of lower end cover of ball high speed mechanical main spindle | |
| CN101722733B (en) | Three-dimensional spray-painting ink supply system | |
| CN201419145Y (en) | Dispensing injection valve | |
| CN104941875A (en) | Stroke-adjustable non-contact type high-speed injection valve | |
| CN203540803U (en) | Electromagnetic injection valve | |
| EP1949961A3 (en) | Apparatus and method for ejecting droplets using charge concentration and liquid bridge breakup | |
| CN202238433U (en) | Jet valve | |
| CN209985691U (en) | Glue dispensing device | |
| CN202208188U (en) | Reciprocating type digital spray printing platform suitable for polyhedron | |
| CN202829526U (en) | Capping device of capping machine | |
| CN203199978U (en) | Filling head with automatically telescopic discharging nozzle | |
| CN105773965B (en) | A kind of three-dimensional jet printing appts of inversion type single electrode electrofluid | |
| CN204172489U (en) | A kind of automatic code spraying | |
| KR100597779B1 (en) | Precise discharge type apparatus for dot dispensing | |
| CN220177365U (en) | High-efficiency high-speed injection valve | |
| CN202878932U (en) | A novel printing device | |
| CN209334894U (en) | A kind of scaling powder printing mechanism and welder | |
| CN210415921U (en) | Novel ink jet numbering machine prints device | |
| CN206052185U (en) | A kind of focusing jet shower nozzle | |
| CN208929093U (en) | A kind of clear gun apparatus of robot | |
| CN207641738U (en) | A kind of swing angle type automatic spraying machine | |
| CN205183070U (en) | Impacted style diaphragm spouts adhesive deposite device a little |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20200805 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |