CN106076693A - A kind of tin cream injection valve - Google Patents
A kind of tin cream injection valve Download PDFInfo
- Publication number
- CN106076693A CN106076693A CN201610555302.4A CN201610555302A CN106076693A CN 106076693 A CN106076693 A CN 106076693A CN 201610555302 A CN201610555302 A CN 201610555302A CN 106076693 A CN106076693 A CN 106076693A
- Authority
- CN
- China
- Prior art keywords
- valve body
- striker
- tin cream
- spring
- plunger shaft
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/047—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump supply being effected by follower in container, e.g. membrane or floating piston, or by deformation of container
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- Nozzles (AREA)
Abstract
A kind of tin cream injection valve, belongs to the fluid control technology field of automated arm.Including valve body, striker, spring adjustment seat, driving spring and ejection section, valve body includes plunger shaft, spring cavity and valve body axis hole, valve body offers air inlet on the sidewall below corresponding plunger shaft, striker constitutes piston in the middle of short transverse, piston is contained in plunger shaft, the gap below piston that plunger shaft is corresponding is configured to the air flow channel communicated with air inlet, spring adjustment seat is constituting spring cavity towards one end of valve body, driving spring is placed in spring cavity and is set on striker, ejection section offers, in the middle of axially, the ejection section axis hole inserted for striker, gap between medial wall and the striker of ejection section axis hole constitutes tin cream runner, ejection section offers the charging aperture communicated with tin cream runner on sidewall, nozzle is offered in the bottom of ejection section.Being prevented from tin sweat(ing) and cold welding occurs because of contact squeeze, expand the kind of sprayable tin cream, easy to maintenance, the life-span is long, low cost.
Description
Technical field
The invention belongs to the fluid control technology field of automated arm, be specifically related to a kind of tin cream injection valve.
Background technology
Tin cream is accompanied by a kind of Novel welding material that SMT (surface mounting technology) arises at the historic moment, and is that electronic product is raw
Extremely important auxiliary material in product, assembles printed circuit board (PCB) for semiconductor packages and PCBA() in Selective Soldering.Stannum
The coating process of cream, can be divided into two ways, and one is to use silk screen printing, is suitable for producing use in enormous quantities, and another kind is injection
Coating, i.e. tin cream Printing techniques.The most different from screen printing technique be exactly Printing techniques be a kind of without steel mesh technology, lead to
The ejector crossing uniqueness can be with high speed injection tin cream, for having space to limit and abnormity components and parts selectively applied,
Injection is maximally effective solution.Clash into due to contact and the tin cream in dead band below striker and nozzle can be caused high extrusion
Pressing thus cold welding occurs, therefore tin cream can not use traditional contact to spray.Existing tin cream injection method is to pass through screw rod
The noncontact of stirring and piezoelectricity striker is clashed into and is produced tin cream glue point, but the method jet power is limited, can only spray viscosity relatively
The low tin cream below No. five powder, and service life is short, troublesome maintenance, and cost is high.
In view of above-mentioned prior art, it is necessary to existing tin cream injection structure is improved, to this end, the applicant makees
Useful design, technical scheme described below produces under this background.
Summary of the invention
It is an object of the invention to provide a kind of tin cream injection valve, solve tin cream can not the problem of contact injection, expand
The big kind of sprayable tin cream, easy to maintenance, service life is long, and cost of manufacture is low.
It is an object of the invention to so to reach, a kind of tin cream injection valve, it is characterised in that: include a valve body, described
Valve body centre constitute have plunger shaft, above described plunger shaft expand set composition spring cavity, the lower section of plunger shaft is then
Narrow contracting constitutes valve body axis hole, and valve body offers the air inlet for being introduced by extraneous air on the sidewall below corresponding plunger shaft；
One striker, described striker constitutes a piston in the middle of short transverse, and the lower end of striker inserts described valve body from top to bottom
In axis hole and leaning out from the lower section of described valve body, described piston is contained in described plunger shaft, and the height of piston is less than
The height of plunger shaft, the gap below piston that plunger shaft is corresponding is configured to the air flow channel communicated with air inlet；One spring is adjusted
Joint seat, the lower end inserting spring seat intracavity of described spring adjustment seat, and connect with described valve body, spring adjustment seat is at axle
Offer the spring adjustment seat axis hole that the upper end for striker is inserted to centre, spring adjustment seat is having bullet towards one end composition of valve body
Spring chamber；One driving spring, described driving spring is placed in spring cavity and is set on striker, one end bearing on piston,
The other end is bearing in the bottom of spring adjustment seat；And an ejection section, described ejection section is assemblied in the lower section of valve body, ejection section
The ejection section axis hole that the lower end for striker is inserted is offered, between medial wall and the striker of described ejection section axis hole in the middle of axially
Gap constitute tin cream runner, ejection section offer on sidewall communicate with tin cream runner for entering that outside tin cream is introduced
Material mouth, the bottom of described ejection section offers the nozzle flowed out for tin cream, and this nozzle communicates with ejection section axis hole.
In a specific embodiment of the present invention, described striker is constituted in bottom jut, described projection
Portion be shaped as in taper, spherical or rectangle any one.
In another specific embodiment of the present invention, the shape of cross section of described nozzle is inverted taper.
In another specific embodiment of the present invention, described piston outer wall surrounding be embedded with for plunger shaft
Cavity wall constitutes the first sealing ring being tightly connected.
In another specific embodiment of the present invention, the portion that described valve body is connected with valve body axis hole in plunger shaft
Being provided with the second sealing ring at Wei, this second sealing ring is set on striker and is positioned at the lower section of piston.
Also having in a specific embodiment in the present invention, described ejection section is being connected in position with valve body
Between be provided with the 3rd sealing ring, the 3rd sealing ring is set on striker, the lobe phase in the middle of its upper surface and valve body bottom
Conflict.
Due to the fact that the mechanical contact injection structure that have employed striker and nozzle, spray with existing piezoelectricity noncontact
Compare, have the beneficial effect that the larger row journey (more than ten times of piezoelectricity) that can realize striker, and transport up and down at striker
Realize the shear shinning to tin cream during Dong, it is possible to prevent tin sweat(ing) from cold welding occurring because of contact squeeze, thus exempt pressure
The helical screw agitator mechanism of electrojet valve, simplifies product structure；It addition, jet performance can be effectively improved, make sprayable tin cream
Type increases, and the life-span is long, and easy to maintenance, use cost is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the A portion enlarged drawing in Fig. 1.
In figure: 1. valve body, 11. plunger shaft, 12. spring cavities, 13. valve body axis holes, 14. air inlets；2. striker, 21. work
Plug, 22. juts；3. spring adjustment seat, 31. spring adjustment seat axis holes, 32. spring cavitys；4. driving spring；5. ejection section, 51.
Ejection section axis hole, 52. charging apertures, 53. nozzles；6. the first sealing ring；7. the second sealing ring；8. the 3rd sealing ring.
Detailed description of the invention
Applicant will elaborate below by way of example, but the description to embodiment is not to this
The restriction of bright technical scheme, any according to being only the most pro forma rather than substantial equivalent transformation done by present inventive concept
It is regarded as technical scheme category.
The most every relate to upper and lower, left and right, the directivity of front and rear or claim directionality concept be all
On the basis of the position shown in Fig. 1, thus being particularly limited to the technical scheme that the present invention provides can not be understood as.
Refer to Fig. 1 and Fig. 2, the present invention relates to a kind of tin cream injection valve, including valve body 1, striker 2, spring adjustment seat 3,
Driving spring 4 and ejection section 5.Described spring adjustment seat 3, valve body 1 and ejection section 5 connect the most successively and constitute phase
Intercommunicated cylinder.Concrete, described valve body 1 is constituted in centre plunger shaft 11, expands above described plunger shaft 11
If constituting spring cavity 12, the narrowest contracting in lower section of plunger shaft 11 constitutes valve body axis hole 13, and valve body 1 is below corresponding plunger shaft 11
The air inlet 14 for being introduced by extraneous air is offered on sidewall.Described striker 2 set to extending out in the centre of short transverse and
Constituting and have a piston 21, described piston 21 is one-body molded with striker 2.The lower end of striker 2 inserts described valve body from top to bottom
In axis hole 13 and leaning out from the lower section of described valve body 1, described piston 21 is contained in described plunger shaft 11, piston 21
Highly less than the height of plunger shaft 11, the gap below the piston 21 of plunger shaft 11 correspondence is configured to the sky communicated with air inlet 14
Flow channel.In the inserting spring seat chamber, lower end 12 of described spring adjustment seat 3, and connecting with described valve body 1, spring regulates
Seat 3 offers, in the middle of axially, the spring adjustment seat axis hole 31 that the upper end for striker 2 is inserted, and spring adjustment seat 3 is towards valve body 1
One end is constituted spring cavity 32.In described driving spring 4 is placed in spring cavity 32 and be set on striker 2, one end bearing exists
On piston 21, the other end be bearing in the bottom of spring adjustment seat 3.Described ejection section 5 is assemblied in the lower section of valve body 1, ejection section 5
Offer, in the middle of axially, the ejection section axis hole 51 that the lower end for striker 2 is inserted.The medial wall of described ejection section axis hole 51 with hit
Gap between pin 2 constitutes tin cream runner, ejection section 5 offer on sidewall communicate with tin cream runner for by outside tin cream
The charging aperture 52 introduced.The bottom of described ejection section 5 offers the nozzle 53 flowed out for tin cream, this nozzle 53 and ejection section axle
Hole 51 communicates.Described striker 2 bottom constitute have jut 22, described jut 22 be shaped as taper, spherical or square
Any one in shape, in the present embodiment, the shape of described jut 22 uses taper, for described conical protrusion
22 is adaptive, and the shape of cross section of nozzle 53 is inverted taper.For preventing described air from entering spring cavity 32 from air flow channel,
Described piston 21 is embedded with for constituting, with plunger shaft 11 cavity wall, the first sealing ring 6 being tightly connected in outer wall surrounding.It addition,
For preventing air from entering tin cream runner, the portion that described valve body 1 is connected with valve body axis hole 13 in plunger shaft 11 from air flow channel
Being provided with the second sealing ring 7 at Wei, this second sealing ring 7 is set on striker 2 and is positioned at the lower section of piston 21；Described injection
Portion 5 is provided with the 3rd sealing ring 8 in the centre at the position that is connected with valve body 1, and the 3rd sealing ring 8 is set on striker 2, its
Upper surface is inconsistent with the lobe of centre, valve body 1 bottom.
Please continue to refer to Fig. 1 and Fig. 2, the operation principle of the present invention is illustrated.Described air inlet 14 is external pneumatic
Electromagnetic valve, compressed air enters air flow channel, lifting striker 2 upwards compression driving spring 4, now striker 2 through air inlet 14
Bottom and nozzle 53 separate, tin cream enters tin cream runner via charging aperture 52, and tin cream flows into striker 2 under feed pressure effect
The cavity (dead band) of the nozzle 53 of lower section is until filling full.Air-operated solenoid valve now switches to exhaust condition, and striker 2 is driving
Moving downward under the pressure of spring 4, until contacting with nozzle 53, the tin cream stress in dead band flows out from nozzle 53 after accelerating, and hits
When pin 2 clashes into nozzle 53, cutting tin cream flows and produces shock vibrations, and the tin cream in nozzle 53 exit utilizes inertia force and surface
Tension force and form independent glue point and spray to substrate surface.Described striker 2 is constituted in bottom conical protrusion 22, can have
Effect reduces dead band, does not interferes with impact force simultaneously, and the tin cream in dead band can fully flow, thus avoids tin cream in dead band
Pile up cold welding.In the present embodiment, described striker 2 is driven by air-operated solenoid valve, and effective travel can regulate.Striker 2
Drive the mode being not limited in electromagnetic valve, it is also possible to be electromagnetic solenoid, linear electric motors etc..
Claims (6)
1. a tin cream injection valve, it is characterised in that: including a valve body (1), described valve body (1) is constituted in centre plunger shaft
(11), expanding in the top of described plunger shaft (11) and set composition spring cavity (12), the narrowest contracting in lower section of plunger shaft (11) is constituted
Valve body axis hole (13), valve body (1) offers the air inlet for being introduced by extraneous air on the sidewall of corresponding plunger shaft (11) lower section
Mouth (14)；One striker (2), described striker (2) constitutes a piston (21) in the middle of short transverse, and the lower end of striker (2) is certainly
Upper and in valve body axis hole (13) described in lower insertion and lean out from the lower section of described valve body (1), described piston (21) houses
In described plunger shaft (11), the height of piston (21) is less than the height of plunger shaft (11), the piston that plunger shaft (11) is corresponding
(21) gap of lower section is configured to the air flow channel communicated with air inlet (14)；One spring adjustment seat (3), described spring regulation
In the inserting spring seat chamber, lower end (12) of seat (3), and connecting with described valve body (1), spring adjustment seat (3) is middle
Offering spring adjustment seat axis hole (31) that the upper end for striker (2) is inserted, spring adjustment seat (3) is in the one end towards valve body (1)
Constitute and have spring cavity (32)；One driving spring (4), described driving spring (4) is placed in spring cavity (32) and is set in striker
(2) on, one end bearing is upper at piston (21), the other end is bearing in the bottom of spring adjustment seat (3)；And an ejection section (5),
Described ejection section (5) is assemblied in the lower section of valve body (1), and ejection section (5) offers the lower end insertion for striker (2) in the middle of axially
Ejection section axis hole (51), gap between medial wall and the striker (2) of described ejection section axis hole (51) constitutes tin cream runner,
Ejection section (5) offer on sidewall communicate with tin cream runner for the charging aperture (52) that outside tin cream is introduced, described
The bottom of ejection section (5) offers the nozzle (53) flowed out for tin cream, and this nozzle (53) communicates with ejection section axis hole (51).
A kind of tin cream injection valve the most according to claim 1, it is characterised in that described striker (2) has prominent in bottom composition
Play portion (22), described jut (22) be shaped as in taper, spherical or rectangle any one.
A kind of tin cream injection valve the most according to claim 1, it is characterised in that the shape of cross section of described nozzle (53)
In inverted taper.
A kind of tin cream injection valve the most according to claim 1, it is characterised in that described piston (21) is embedding in outer wall surrounding
It is provided with for constituting, with the cavity wall of plunger shaft (11), the first sealing ring (6) being tightly connected.
A kind of tin cream injection valve the most according to claim 1, it is characterised in that described valve body (1) plunger shaft (11) with
The position that valve body axis hole (13) is connected is provided with the second sealing ring (7), and this second sealing ring (7) is set on striker (2)
And it is positioned at the lower section of piston (21).
A kind of tin cream injection valve the most according to claim 1, it is characterised in that described ejection section (5) with valve body (1)
The be connected centre at position is provided with the 3rd sealing ring (8), and the 3rd sealing ring (8) is set on striker (2), its upper surface
Inconsistent with the lobe in the middle of valve body (1) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610555302.4A CN106076693A (en) | 2016-07-15 | 2016-07-15 | A kind of tin cream injection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610555302.4A CN106076693A (en) | 2016-07-15 | 2016-07-15 | A kind of tin cream injection valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106076693A true CN106076693A (en) | 2016-11-09 |
Family
ID=57220617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610555302.4A Pending CN106076693A (en) | 2016-07-15 | 2016-07-15 | A kind of tin cream injection valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106076693A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107930899A (en) * | 2017-12-19 | 2018-04-20 | 南通航运职业技术学院 | A kind of adjustable automatic fuel spray valve |
| CN110181142A (en) * | 2019-06-12 | 2019-08-30 | 长春师范大学 | A kind of Piezoelectric Driving printing injector |
| CN112337669A (en) * | 2019-08-09 | 2021-02-09 | 福之匠精工科技(昆山)有限公司 | Wave-soldering scaling powder precision spraying system |
| CN114752883A (en) * | 2022-04-15 | 2022-07-15 | 翼龙半导体设备(无锡)有限公司 | Vertical tin spraying mechanism |
| CN117065958A (en) * | 2023-10-16 | 2023-11-17 | 烟台美嘉涂胶设备有限公司 | Angle-adjustable grease spray valve |
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| JP2006305454A (en) * | 2005-04-27 | 2006-11-09 | Sony Corp | Quantitative discharging device |
| CN101646502A (en) * | 2007-03-08 | 2010-02-10 | 武藏工业株式会社 | Liquid droplet discharging device and method |
| CN103889589A (en) * | 2011-10-07 | 2014-06-25 | 武藏工业株式会社 | Liquid material discharge apparatus and method |
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2016
- 2016-07-15 CN CN201610555302.4A patent/CN106076693A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006305454A (en) * | 2005-04-27 | 2006-11-09 | Sony Corp | Quantitative discharging device |
| CN101646502A (en) * | 2007-03-08 | 2010-02-10 | 武藏工业株式会社 | Liquid droplet discharging device and method |
| CN103889589A (en) * | 2011-10-07 | 2014-06-25 | 武藏工业株式会社 | Liquid material discharge apparatus and method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107930899A (en) * | 2017-12-19 | 2018-04-20 | 南通航运职业技术学院 | A kind of adjustable automatic fuel spray valve |
| CN107930899B (en) * | 2017-12-19 | 2020-04-21 | 南通航运职业技术学院 | Adjustable automatic fuel injection valve |
| CN110181142A (en) * | 2019-06-12 | 2019-08-30 | 长春师范大学 | A kind of Piezoelectric Driving printing injector |
| CN112337669A (en) * | 2019-08-09 | 2021-02-09 | 福之匠精工科技(昆山)有限公司 | Wave-soldering scaling powder precision spraying system |
| CN114752883A (en) * | 2022-04-15 | 2022-07-15 | 翼龙半导体设备(无锡)有限公司 | Vertical tin spraying mechanism |
| CN114752883B (en) * | 2022-04-15 | 2023-06-06 | 翼龙半导体设备(无锡)有限公司 | Vertical tin spraying mechanism |
| CN117065958A (en) * | 2023-10-16 | 2023-11-17 | 烟台美嘉涂胶设备有限公司 | Angle-adjustable grease spray valve |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161109 |
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| WD01 | Invention patent application deemed withdrawn after publication |