CN104941875A - Stroke-adjustable non-contact type high-speed injection valve - Google Patents
Stroke-adjustable non-contact type high-speed injection valve Download PDFInfo
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- CN104941875A CN104941875A CN201510412050.5A CN201510412050A CN104941875A CN 104941875 A CN104941875 A CN 104941875A CN 201510412050 A CN201510412050 A CN 201510412050A CN 104941875 A CN104941875 A CN 104941875A
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Abstract
The invention discloses a stroke-adjustable non-contact type high-speed injection valve. A solenoid valve assembly comprises a high-speed solenoid valve and a solenoid valve seat. The high-speed solenoid valve is fixedly arranged on the solenoid valve seat and connected with an air intake pipe. A valve opening pressure air pipe is communicated with a compression cavity. The other side of the compression cavity is provided with a piston device. The piston device is connected with a stroke assembly. The stroke assembly is connected with a triggering needle assembly. The primary of a triggering needle on the lower portion of the triggering needle assembly is a glue channel. The glue channel is communicated with a material supply assembly on the right side. The tail end of the triggering needle assembly is connected with a spray nozzle assembly. After the high-speed solenoid valve works, a valve on the compression cavity is opened, compressed air connected with the valve opening pressure air pipe enters the compression cavity to push a piston device to move upwards, the piston device drives the stroke assembly to move upwards, the stroke assembly drives the triggering needle assembly to move upwards, the triggering needle moves upwards along with the triggering needle assembly, the triggering needle is separated from a spray nozzle pad, and fluid enters the spray nozzle pad and flows out of the spray nozzle.
Description
Technical field
The present invention relates to injection apparatus technical field, relate to the contactless high-speed injection valve that a kind of stroke is adjustable specifically.
Background technology
Existing injection valve generally comprises nozzle, striker, hot-melt adhesive device and cylinder, hot-melt adhesive device comprises housing, PUR cavity is formed in housing, housing is provided with the charging aperture be communicated with PUR cavity, nozzle is fixedly connected with the bottom of hot-melt adhesive device housing, and is docked and connected with the lower end of PUR cavity; Described striker is arranged in PUR cavity, and cylinder is positioned at hot-melt adhesive device top, and the cylinder body of cylinder is fixedly connected with hot-melt adhesive device, and striker is fixedly connected with the piston of cylinder, is provided with the return spring between the cylinder body acted on and piston in described cylinder.During work, PUR to be sprayed by charging aperture to the charging of PUR cavity, start cylinder simultaneously, piston moves up, striker with on move, the passage that PUR cavity leads to nozzle is opened, PUR to be sprayed enters nozzle by PUR cavity, now shifter cylinder, striker resets under the elastic force effect of return spring, and the PUR to be sprayed entering nozzle is ejected.
Traditional injection valve often can produce following fault:
1. nozzle not plastic emitting.
2. easy kiss-coating.
3. glue splashes, and has satellite point.
4. glue water clock.
5. a glue uniformity is poor.
6. compressed air leakage.
Therefore, in order to enable a glue sequentially carry out, some colloid amount reaches pre-provisioning request, and traditional injection valve needs to improve.
Summary of the invention
For deficiency of the prior art, the technical problem to be solved in the present invention there are provided the adjustable contactless high-speed injection valve of a kind of stroke, high-speed injection valve of the present invention is in the closed position under a normality, by compressed air-driven, and the noncontact injecting type glue valve that pretightning force, stroke are adjustable.It utilizes energy conversion principle to realize the some glue of adhesive.
For solving the problems of the technologies described above, the present invention is realized by following scheme: the contactless high-speed injection valve that a kind of stroke is adjustable, and this high-speed injection valve comprises:
Electromagnetic valve component, stroke assembly, firing pin assembly, supply assembly, nozzle assembly;
Described electromagnetic valve component is by comprising high-speed electromagnetic valve, magnetic valve valve seat, high-speed electromagnetic valve is fixedly mounted on magnetic valve valve seat, described high-speed electromagnetic valve connects air inlet pipe, and cracking pressure tracheae is communicated with a compaction cavum, and compaction cavum opposite side is provided with piston apparatus;
Described piston apparatus connects stroke assembly, and described stroke assembly connects firing pin assembly, and the striker periphery of described firing pin assembly bottom is glue channel, and glue channel is communicated with the supply assembly on right side;
Described firing pin assembly end is connected with nozzle assembly;
After described high-speed electromagnetic valve work, open the valve at compaction cavum place, the compressed air that cracking pressure tracheae connects enters compaction cavum, promotion piston apparatus moves upward, and piston apparatus drives stroke assembly to move upward, and stroke assembly drives firing pin assembly to move upward, striker moves upward with firing pin assembly, striker is separated with nozzle pad, and fluid enters nozzle pad, more outwards flows out through nozzle.
Further, described stroke assembly comprises stroke adjustment seat, spring, pretightning force adjustable ring, described stroke adjustment seat is inverted T-shaped body, spring is placed on the vertical cylinder of T-shaped body of stroke adjustment seat, pretightning force adjustable ring is connected on stroke adjustment seat top, screw or unclamp pretightning force adjustable ring, the position of stroke adjustment seat can be changed, and then spring-compressed can be made or unclamp, spring bottom end withstands on the platform rafter place of stroke adjustment seat lower end, initial tension of spring size can be realized by the position changing stroke adjustment seat, thus the acceleration that change striker moves downward.
Further, described stroke assembly upper end is provided with stroke regulating handle, the position of stroke adjustment seat and spring entirety can be changed by rotating distance regulating handle, the setting of firing pin assembly move distance can be realized, and then the gel quantity of nozzle assembly can be changed.
Further, the junction of described firing pin assembly and stroke assembly is provided with striker pad, and firing pin assembly upper semisection is striker sleeve, and striker is installed in striker sleeve, and striker sleeve has the effect to striker orientation, and striker is not offset.
Further, described supply assembly comprises syringe, glue stores chamber, described syringe and glue store between chamber and are provided with a piston, piston upper end cavity connects feed pressure tracheae, glue stores chamber and stores glue, described glue stores on glue exit normal direction, bottom, chamber and is communicated with glue channel, and this glue channel extends to striker place, is communicated with striker peripheral clearance.
Further, described nozzle assembly comprises nozzle pad, nozzle, and described nozzle pad is provided with plastic hole, is placed on the upside of nozzle, and under high-speed injection valve off working state, the end of striker holds out against in nozzle pad, and the plastic hole of nozzle pad is blocked.
Further, described high-speed electromagnetic valve upper end connecting power line.
Relative to prior art, the invention has the beneficial effects as follows: the present invention is a noncontact injecting type high-speed injection valve, to the flow-controllable of all kinds of adhesive such as various liquid such as surface adhesive, conductive silver paste, IC packaging plastic, underfill, fluid sealant, surface coating material glue, the at a high speed operation of some glue.The little narrow space to hundred microns can be injected, also can complete the accurate some glue of weight to 0.02 milligram of rank at assigned address.Complete compatibility various automation point glue platform, at Electronic Packaging industry, illuminating industry, energy industry, Life Science and other need high accuracy, high efficiency and the occasion of restriction of having living space brings maximum economic benefit for client.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is that high velocity jet valve arrangement of the present invention closes schematic diagram.
Fig. 2 is that high velocity jet valve arrangement of the present invention opens rear schematic diagram.
Fig. 3 is high-speed injection valve of the present invention and outside pipe and power line connection diagram.
Mark in accompanying drawing: pretightning force adjustable ring 1, stroke adjustment seat 2, striker pad 3, firing pin assembly 4, nozzle pad 5, nozzle 6, spring 7, high-speed electromagnetic valve 8, glue 9, syringe 10, stroke regulating handle 11, cracking pressure tracheae 12, power line 13, feed pressure tracheae 14.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Please refer to accompanying drawing 1 ~ 3, the contactless high-speed injection valve that a kind of stroke is adjustable, this high-speed injection valve comprises:
Electromagnetic valve component, stroke assembly, firing pin assembly 4, supply assembly, nozzle assembly;
Described electromagnetic valve component is by comprising high-speed electromagnetic valve 8, magnetic valve valve seat, high-speed electromagnetic valve 8 is fixedly mounted on magnetic valve valve seat, described high-speed electromagnetic valve 8 connects air inlet pipe 12, and cracking pressure tracheae 12 is communicated with a compaction cavum, and compaction cavum opposite side is provided with piston apparatus; Described piston apparatus connects stroke assembly, and described stroke assembly connects firing pin assembly 4, and the striker periphery of described firing pin assembly 4 bottom is glue channel, and glue channel is communicated with the supply assembly on right side; Described firing pin assembly 4 end is connected with nozzle assembly; After described high-speed electromagnetic valve 8 works, open the valve at compaction cavum place, the compressed air that cracking pressure tracheae 12 connects enters compaction cavum, promotion piston apparatus moves upward, and piston apparatus drives stroke assembly to move upward, and stroke assembly drives firing pin assembly 4 to move upward, striker moves upward with firing pin assembly 4, striker is separated with nozzle pad 5, and fluid enters nozzle pad 5, more outwards flows out through nozzle 6.Described stroke assembly comprises stroke adjustment seat 2, spring 7, pretightning force adjustable ring 1, described stroke adjustment seat 2 is inverted T-shaped body, spring 7 is placed on the vertical cylinder of T-shaped body of stroke adjustment seat 2, pretightning force adjustable ring 1 is connected on stroke adjustment seat 2 top, screw or unclamp pretightning force adjustable ring 1, the position of stroke adjustment seat 2 can be changed, and then spring 7 can be made to compress or unclamp, spring 7 bottom withstands on the platform rafter place of stroke adjustment seat 2 lower end, spring 7 pretightning force size can be realized by the position changing stroke adjustment seat 2, thus the acceleration that change striker moves downward.Described stroke assembly upper end is provided with stroke regulating handle 11, can change stroke adjustment seat 2 and the position of spring 7 entirety, can realize the setting of firing pin assembly move distance, and then can change the gel quantity of nozzle assembly by rotating distance regulating handle 11.Described firing pin assembly 4 is provided with striker pad 3 with the junction of stroke assembly, and firing pin assembly 4 upper semisection is striker sleeve, and striker is installed in striker sleeve, and striker sleeve has the effect to striker orientation, and striker is not offset.Described supply assembly comprises syringe 10, glue stores chamber 9, described syringe 10 and glue store between chamber 9 and are provided with a piston, piston upper end cavity connects feed pressure tracheae 14, glue stores chamber 9 and stores glue, described glue stores on glue exit normal direction, bottom, chamber 9 and is communicated with glue channel, this glue channel extends to striker place, is communicated with striker peripheral clearance.Described nozzle assembly comprises nozzle pad 5, nozzle 6, and described nozzle pad 5 is provided with plastic hole, is placed on the upside of nozzle 6, and under high-speed injection valve off working state, the end of striker holds out against in nozzle pad 5, and the plastic hole of nozzle pad 6 is blocked.Described high-speed electromagnetic valve 8 upper end connecting power line 13.
Under normal circumstances, injection valve firing pin assembly 4, under the pretightning force effect of spring 7, presses with nozzle pad 5, and stop fluid to flow out, be in closed condition, fluid is full of the gap between firing pin assembly and cavity under pressure.Under the switch control rule of magnetic valve, compressed air enters in valve body, promotes firing pin assembly 4 and moves upward, until with stroke adjustment seat 2 times end in contact, and stop one section of reasonable time in this position, now, striker is separated with nozzle pad 5, and fluid enters nozzle pad 5.
Work as solenoid closure, striker under the active force of spring 7, fast ram nozzle pad 5, be the kinetic energy that striker moves downward by the precompressed potential energy converting and energy of spring 7, fluid is cut-off in flow process, is ejected by fluid instantaneously, complete a work period closed with glue drop-wise by nozzle 6.
For different fluid behaviours, need to carry out setting to the pretightning force of glue valve and stroke and regulate.The pretightning force of high-speed injection valve and travel parameters independently regulate, and are independent of each other.Spring 7 pretightning force size can be realized by the position of rotating distance adjustment seat 2, thus the acceleration that change striker moves downward; The setting of firing pin assembly 4 move distance can be realized by the position of rotating distance adjustment seat 2, reach the object changing gel quantity.
The size of feed pressure and supply gas pressure directly affects the effect of glue valve point glue, and feed pressure is too little, and fluid can not be full of nozzle pad 5 and nozzle 6; Feed pressure is too large, in valve opening moment, directly flows out from nozzle 6, can not form injection.The size of supply gas pressure will be enough to ensure that firing pin assembly can move up and down smoothly.
Nozzle pad 5, nozzle 6 and and the physical dimension of corresponding firing pin assembly 4 be not both the principal element of control point flow adhesive, the configuration of other parameters is also set according to three's specification size.So according to the difference of practical situations and glue property, the nozzle assembly of appropriate size should be selected.
The fluid changed for viscosity temperature influence, utilizes heating component to improve the rheological characteristic of fluid, fluid is more easily switched " off " at course of injection.
The make-and-break time of magnetic valve controls the operating frequency of injection valve.When magnetic valve powers on, be full of compressed air in valve body and promote piston upwards, realizing valve opening.Otherwise, close under pre-pressure of the spring.The make-and-break time of magnetic valve can not be less than the response time, otherwise cannot work.
Piston and valve interior wall, frictional resistance between striker and guide bearing, can affect the mechanical response time of moving component, thus affect the uniformity of glue amount.Regularly to lubricating in valve body, safeguarding, frictional resistance should be reduced to greatest extent.
The injection valve of appropriate size, configuration is fixed on motion platform, according to the applicable cases of reality, the feeder means such as syringe 10, cassette glue bucket or pressurized tank are installed, cracking pressure tracheae 12 and feed pressure tracheae in connection, if necessary, install heating component, and be connected with control system.Before formal use, review and validate gas circuit and close, air pressure is 0.Glue valve control is in closed condition.The charge cup that one holds raffinate is placed below glue valve.
The uniformity keeping the continuous supply gas pressure of valve opening air pressure to drip for the realization of spraying, glue at least 85psi is all extremely important.The viscosity of fluid, the difference of rheological property and get the setting of parameter ready, also different to the size of valve opening air pressure.Generally, valve opening air pressure is set between 90-95psi.The fluctuation of general factory air pressure is comparatively large, for ensureing the continuous voltage supply stability of valve opening air pressure, needs to connect supercharging stable-pressure device, as booster pump.Setting feed pressure 15Psi, different according to the viscosity of fluid and glue amount demand, roughly remain between 10 ~ 20Psi; Pretightning force and striker stroke are separately adjustment, and have graduation indication alone.When regulating pretightning force, stroke can change thereupon, and adjustment stroke then can not affect pretightning force.Special spanner is used to carry out pretightning force adjustment.The pretightning force that turns clockwise increases, and is rotated counterclockwise pretightning force and reduces.Generally, pretightning force scale is between 10 ~ 20 lattice.The size of stroke affects the uninterrupted that glue drips.Wherein, the stroke regulating handle that turns clockwise increases stroke, reduces stroke counterclockwise.An often mobile table rows journey change 0.05mm.In the course of the work, due to the accumulation in nozzle flow channel of fluid endoparticle or solid impurity, may spray nozzle clogging be caused, thus cannot plastic emitting.In such cases, please quit work immediately, according to the step of aforementioned simple-to-maintain, nozzle is taken off, confirm spray nozzle clogging under the microscope.Air gun on probation is from the up blowback of nozzle glue-extruding end, and (can not blow from entering glue end toward glue-extruding end), then puts into part and fill spirituous ultrasonic container and clean, and examines under a microscope and confirm nozzle conducting.In the process using air gun to blow to nozzle, notice that the head end of air gun can't touch nozzle.
The foregoing is only the preferred embodiment of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (7)
1. the contactless high-speed injection valve that stroke is adjustable, is characterized in that, this high-speed injection valve comprises:
Electromagnetic valve component, stroke assembly, firing pin assembly (4), supply assembly, nozzle assembly;
Described electromagnetic valve component is by comprising high-speed electromagnetic valve (8), magnetic valve valve seat, high-speed electromagnetic valve (8) is fixedly mounted on magnetic valve valve seat, described high-speed electromagnetic valve (8) connects air inlet pipe (12), cracking pressure tracheae (12) is communicated with a compaction cavum, and compaction cavum opposite side is provided with piston apparatus;
Described piston apparatus connects stroke assembly, and described stroke assembly connects firing pin assembly (4), and the striker periphery of described firing pin assembly (4) bottom is glue channel, and glue channel is communicated with the supply assembly on right side;
Described firing pin assembly (4) end is connected with nozzle assembly;
After described high-speed electromagnetic valve (8) work, open the valve at compaction cavum place, the compressed air that cracking pressure tracheae (12) connects enters compaction cavum, promotion piston apparatus moves upward, piston apparatus drives stroke assembly to move upward, stroke assembly drives firing pin assembly (4) to move upward, striker moves upward with firing pin assembly (4), striker is separated with nozzle pad (5), fluid enters nozzle pad (5), more outwards flows out through nozzle (6).
2. the contactless high-speed injection valve that a kind of stroke according to claim 1 is adjustable, it is characterized in that: described stroke assembly comprises stroke adjustment seat (2), spring (7), pretightning force adjustable ring (1), described stroke adjustment seat (2) is inverted T-shaped body, spring (7) is placed on the vertical cylinder of T-shaped body of stroke adjustment seat (2), pretightning force adjustable ring (1) is connected on stroke adjustment seat (2) top, screw or unclamp pretightning force adjustable ring (1), the position of stroke adjustment seat (2) can be changed, and then spring (7) can be made to compress or unclamp, spring (7) bottom withstands on the platform rafter place of stroke adjustment seat (2) lower end, spring (7) pretightning force size can be realized by the position changing stroke adjustment seat (2), thus the acceleration that change striker moves downward.
3. the contactless high-speed injection valve that a kind of stroke according to claim 1 and 2 is adjustable, it is characterized in that: described stroke assembly upper end is provided with stroke regulating handle (11), stroke adjustment seat (2) position overall with spring (7) can be changed by rotating distance regulating handle (11), the setting of firing pin assembly move distance can be realized, and then the gel quantity of nozzle assembly can be changed.
4. the contactless high-speed injection valve that a kind of stroke according to claim 1 is adjustable, it is characterized in that: described firing pin assembly (4) is provided with striker pad (3) with the junction of stroke assembly, firing pin assembly (4) upper semisection is striker sleeve, striker is installed in striker sleeve, striker sleeve has the effect to striker orientation, and striker is not offset.
5. the contactless high-speed injection valve that a kind of stroke according to claim 1 is adjustable, it is characterized in that: described supply assembly comprises syringe (10), glue stores chamber (9), described syringe (10) and glue store between chamber (9) and are provided with a piston, piston upper end cavity connects feed pressure tracheae (14), glue stores chamber (9) and stores glue, described glue stores on glue exit normal direction, chamber (9) bottom and is communicated with glue channel, this glue channel extends to striker place, is communicated with striker peripheral clearance.
6. the contactless high-speed injection valve that a kind of stroke according to claim 1 is adjustable, it is characterized in that: described nozzle assembly comprises nozzle pad (5), nozzle (6), described nozzle pad (5) is provided with plastic hole, be placed in nozzle (6) upside, under high-speed injection valve off working state, the end of striker holds out against in nozzle pad (5), and the plastic hole of nozzle pad (6) is blocked.
7. the contactless high-speed injection valve that a kind of stroke according to claim 1 is adjustable, is characterized in that: described high-speed electromagnetic valve (8) upper end connecting power line (13).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510412050.5A CN104941875B (en) | 2015-07-14 | 2015-07-14 | A kind of adjustable contactless high-speed injection valve of stroke |
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| CN201510412050.5A CN104941875B (en) | 2015-07-14 | 2015-07-14 | A kind of adjustable contactless high-speed injection valve of stroke |
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| CN104941875A true CN104941875A (en) | 2015-09-30 |
| CN104941875B CN104941875B (en) | 2018-01-09 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106862143A (en) * | 2017-04-21 | 2017-06-20 | 苏州睿斯合机电设备有限公司 | A kind of injection valve automatic rinser |
| CN110124937A (en) * | 2018-02-09 | 2019-08-16 | 深圳市轴心自控技术有限公司 | Hot melt adhesive injection valve |
| CN110833969A (en) * | 2018-08-18 | 2020-02-25 | 罗天珍 | Check valve partition striker type injection dispensing valve |
| 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 |
| CN112705420A (en) * | 2020-12-24 | 2021-04-27 | 张振 | Dispensing machine |
| 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 |
| CN114589028A (en) * | 2022-01-05 | 2022-06-07 | 广东博智林机器人有限公司 | Spray gun |
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| US5747102A (en) * | 1995-11-16 | 1998-05-05 | Nordson Corporation | Method and apparatus for dispensing small amounts of liquid material |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106862143A (en) * | 2017-04-21 | 2017-06-20 | 苏州睿斯合机电设备有限公司 | A kind of injection valve automatic rinser |
| CN106862143B (en) * | 2017-04-21 | 2023-10-31 | 苏州睿斯合机电设备有限公司 | Automatic cleaning machine for injection valve |
| CN110124937A (en) * | 2018-02-09 | 2019-08-16 | 深圳市轴心自控技术有限公司 | Hot melt adhesive injection valve |
| CN110124937B (en) * | 2018-02-09 | 2024-03-15 | 深圳市轴心自控技术有限公司 | Hot melt adhesive injection valve |
| CN110833969A (en) * | 2018-08-18 | 2020-02-25 | 罗天珍 | Check valve partition striker type injection dispensing valve |
| 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 |
| CN112705420A (en) * | 2020-12-24 | 2021-04-27 | 张振 | Dispensing machine |
| 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 |
| CN113798126B (en) * | 2021-09-17 | 2023-04-14 | 深圳市腾盛精密装备股份有限公司 | Fluid assembly and injection valve |
| CN114589028A (en) * | 2022-01-05 | 2022-06-07 | 广东博智林机器人有限公司 | Spray gun |
| CN114589028B (en) * | 2022-01-05 | 2023-03-14 | 广东博智林机器人有限公司 | Spray gun |
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| CN104941875B (en) | 2018-01-09 |
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