CN202238433U - Jet valve - Google Patents
Jet valve Download PDFInfo
- Publication number
- CN202238433U CN202238433U CN201120283760XU CN201120283760U CN202238433U CN 202238433 U CN202238433 U CN 202238433U CN 201120283760X U CN201120283760X U CN 201120283760XU CN 201120283760 U CN201120283760 U CN 201120283760U CN 202238433 U CN202238433 U CN 202238433U
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- Prior art keywords
- cylinder
- nozzle
- striker
- application device
- injection valve
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- Expired - Fee Related
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Abstract
The utility model discloses a jet valve, and belongs to a jet device. The jet valve comprises a nozzle, a firing pin, a coating device, a return spring and a cylinder. The jet valve has a simple structure; the cylinder is connected with the coating device in a detachable clamping mode through a buckle and a clamping groove, so the jet valve is convenient to detach and wash, time-saving and labor-saving; a sealing element for sealing a gap at the communicated position is arranged at the communicated position of the cylinder and a coating cavity, the sealing element effectively prevents a coating from entering the gap at the communicated position, a positioning sleeve for preventing the firing pin from rocking horizontally is arranged above the sealing element, and the positioning sleeve and the sealing element better ensures the vertical motion of the firing pin so as to improve the spraying precision; the aperture of the nozzle is gradually reduced from the feeding end to the discharge end, and an aperture shrinkage mode is adopted in the nozzle, so that the jet speed of the coating is increased; and the jet valve solves the problems that the conventional jet valve has low jet precision and low speed and is difficult to detach and clean.
Description
Technical field
The utility model belongs to the injection apparatus technical field, is specifically related to a kind of injection 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, the cylinder block of this injection valve is fixedly connected with application device; And injection valve needs often to clean to guarantee the cleaning in the cavity, increases work efficiency, and the injection valve dismounting of this structure is comparatively complicated; Cleaning process need be wasted lot of manpower and material resources, wastes time and energy; 3, 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 that a kind of simple in structure, convenient disassembly, accuracy of spray are higher, the injection valve of rapid speed.
A kind of injection 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;
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;
Being provided with between said cylinder and the application device increases cylinder is connected compactness with application device clamp ring;
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, 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, and cylinder detachably engages with draw-in groove through buckle with application device and is connected, and it is comparatively convenient, time saving and energy saving to unpick and wash; Being provided with between cylinder and the application device increases cylinder is connected compactness with application device clamp ring; The rotation lock collar; Can lock or being connected of loosening cylinder and application device, clamp ring has guaranteed to connect closely on the one hand, has also increased the convenience of dismounting on the other hand; 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; 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 injection 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 injection 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 injection 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 (7)
1. an injection 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: 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;
Being provided with between said cylinder and the application device increases cylinder is connected compactness with application device clamp ring;
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 injection valve according to claim 1 is characterized in that: the aperture of said nozzle is 0.1mm-0.25mm.
3. a kind of injection 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 injection valve according to claim 3 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.
5. a kind of injection valve according to claim 4 is characterized in that: said cylinder sidewall is provided with the air inlet that is communicated with cylinder block.
6. a kind of injection valve according to claim 5 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.
7. according to each described a kind of injection valve of claim 1 to 6, 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 |
|---|---|---|---|
| CN201120283760XU CN202238433U (en) | 2011-08-05 | 2011-08-05 | Jet valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120283760XU CN202238433U (en) | 2011-08-05 | 2011-08-05 | Jet valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202238433U true CN202238433U (en) | 2012-05-30 |
Family
ID=46099738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120283760XU Expired - Fee Related CN202238433U (en) | 2011-08-05 | 2011-08-05 | Jet valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202238433U (en) |
-
2011
- 2011-08-05 CN CN201120283760XU patent/CN202238433U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20200805 |