CN105149167A - Negative pressure feedback re-suction ejector pin type dispensing valve - Google Patents
Negative pressure feedback re-suction ejector pin type dispensing valve Download PDFInfo
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- CN105149167A CN105149167A CN201510671801.5A CN201510671801A CN105149167A CN 105149167 A CN105149167 A CN 105149167A CN 201510671801 A CN201510671801 A CN 201510671801A CN 105149167 A CN105149167 A CN 105149167A
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Abstract
The invention discloses a negative pressure feedback re-suction ejector pin type dispensing valve, solving the technical problem that air bubbles or vacuum bubbles are generated in the use process of an existing ejector pin type dispensing valve in the prior art. The valve comprises a micrometer gauge (1), an upper valve body (6), a lower valve body (15), a glue discharging pipe mouth (16), a negative pressure connection pipe (9) and a two-position three-way solenoid valve (12), wherein the upper valve body (6) comprises a spring cap (2), a compression spring (3), a limiting block (4), a sealing ring (5) and a piston (7); the lower valve body (15) comprises a gas collection chamber (8), a diaphragm (10), a glue inlet (11), a needle valve (13) and a valve door chamber (14). According to the negative pressure feedback re-suction ejector pin type dispensing valve, an upper glue feeding mode is changed into a lower glue feeding manner, the gas collection chamber and a negative pressure feedback chamber are arranged additionally, the continuous glue discharging and instant glue stopping of the dispensing valve are obviously improved, and the technical problem that the air bubbles or the vacuum bubbles are generated in the use process of the existing ejector pin type dispensing valve in the prior art is solved.
Description
Technical field
The present invention relates to glue dispensing valve, especially a kind of negative pressure feedback resorption ejector pin type glue dispensing valve.
Background technology
Glue dispensing valve is most important work execution unit on point gum machine.Point gum machine is that one is controlled fluid by glue dispensing valve, and by fluid drop, the automatic machinery being coated on product surface or interiors of products.Along with the development of technology, point gum machine is widely used in electronic manufacturing industry, industrial electric, photovoltaic, architectural engineering etc., and market application is quite universal.Current equipment has manual, semi-automatic and full-automatic.Automaticity is more and more higher.
The application of point gum machine is enriched constantly and is developed, and it is also proposed various forms of requirement to glue dispensing valve.In current some glue industry market, existing glue dispensing valve door style more than 30 is planted.Contact and contactless can be divided into by plastic emitting mode glue dispensing valve.Contactless glue dispensing valve is the new technology just grown up in recent years, similar inkjet printing principle, have speed fast, the advantage that glue point is little, but technology is not also very ripe, very sensitive to the viscosity of glue; And conventional contact glue dispensing valve because it is simple and reliable for structure, stable performance, applied widely, long service life and being used widely.Common are: ejector pin type glue dispensing valve, plunger type glue dispensing valve, diaphragm type dispensing valve, AB biliquid glue dispensing valve, also have rotary glue dispensing valve etc.
Resorption ejector pin type glue dispensing valve popular in the market, glue enters from top to down, valve is when closing, movable valve upwards promotes fast, a negative pressure can be produced at valve chamber inner chamber, the sizing material of " pulling " downward water clock in time, thus realize disconnected glue instantaneously, solve plastic emitting time delay and wire drawing weeping preferably.But in valve fast lifting process, now glue has downward movement velocity, and negative pressure appears in place at valve, just produce air bubble or vacuum packet; And valve moves downward during common ejector pin type glue dispensing valve closedown, there is no resorption function, disconnected colloidality can be slightly poor, thimble fast lifting when opening valve, glue is moved in glue valve body from top to bottom, because the glue direction of motion is contrary with thimble opening direction, open top instantaneously at needle-valve and there will be negative pressure of vacuum equally, equally also can produce air bubble or vacuum packet.
Summary of the invention
For solving an above existing difficult problem, the invention discloses a kind of negative pressure feedback resorption ejector pin type glue dispensing valve, comprising gauge microsize, upper valve body, lower valve body, plastic emitting ozzle, negative pressure tube connector, two-position three way magnetic valve; Described upper valve body comprises spring compressor, Compress Spring, limited block, sealing ring, piston; Described lower valve body comprises collection chamber, barrier film, glue-feeder, needle-valve, valve box;
Described gauge microsize is connected with described limited block; Described limited block is connected with described needle-valve; Described limited block is connected with described piston; Described needle-valve moves up and down in described piston; Described needle-valve end is control the valve into glue amount; Compress Spring is arranged with outside described limited block and described limited block and described piston; Spring compressor is arranged at described Compress Spring top; There is sealing ring the junction of described spring compressor and described upper valve body; Described piston is placed in the inner chamber of described upper valve body; Described two-position three way magnetic valve is between described upper valve body and described lower valve body, and described two-position three way magnetic valve is communicated with the bottom of the inner chamber of described upper valve body; Described collection chamber is arranged in lower valve body; Described needle-valve end can pass into collection chamber, and described glue-feeder is communicated with described collection chamber, and described needle-valve end drops to minimum point described glue-feeder and described collection chamber connectivity part can be blocked; The side of described collection chamber is communicated with negative pressure tube connector, and described collection chamber and negative pressure tube connector connectivity part are provided with barrier film; Described collection chamber and described valve box are separated by described needle-valve end, and after described needle-valve moves upward, described collection chamber is communicated with described valve box; Described negative pressure tube connector has two, the inner space of and described upper valve body, and another is communicated with described collection chamber;
Preferably, described gauge microsize top end surface is the anti-skid structures such as frosted, striped or projection;
Preferably, described needle-valve end adopts spherical structure;
Preferably, described barrier film is that elastomeric material is made;
Preferably, described sealing ring is that elastomeric material is made.
Beneficial effect: the present invention enters glue mode under by the enterprising glue of change being, increases collection chamber and negative pressure feedback room, plastic emitting continuity and the colloidality of breaking instantaneously of Novel adhesive dispensing valve can be significantly improved.Be in particular in the following aspects:
1. open size by gauge microsize by-pass valve control, can precise fine-adjustment gel quantity, when glue quality and operating pressure stable, the accuracy and the continuity that flow adhesive can be guaranteed;
2. glue initiatively enters valve under pressure, flow direction and valve open direction one to, all move upward, not easily produce vacuum;
3. set up collection chamber, can collect because pipeline air exhaust water is clean when starting working, or the gas produced in the bubble of remnants in glue and work; Set up negative pressure chamber, be connected by elastic diaphragm and collection chamber, and with piston upper chamber pipeline communication, formed negative pressure chamber.When the descending closedown of needle-valve, the indoor chamber of squeezing valve, now on piston, indoor cavity pressure can sharply decline simultaneously, by pipeline, negative pressure is delivered to negative pressure chamber, and elastic diaphragm is out of shape, cause collection chamber volume synchronously to expand, and collection chamber internal volume extensive magnitude is greater than, and needle-valve is descending causes valve chamber smaller volume amount, when can guarantee that needle-valve is closed, the pressure of valve chamber inner chamber reduces instantaneously, produces the effect of suction glue, thus realize disconnected glue instantaneously to going out sebific duct;
4. due to the existence of collection chamber, in continuous plastic emitting process, the effect of steady operation pressure can be played, make plastic emitting more steady, coherent;
5. valve is normally closed type, prevents hang-up and water clock;
6. needle-valve end adopts spherical structure, has automatic centering, and the speed of closing and opening is shorter than traditional cone structure required time, and control glue is more accurate.
Accompanying drawing explanation
Fig. 1 is structure chart of the present invention.
Wherein, 1, gauge microsize, 2, spring compressor, 3, Compress Spring, 4, limited block, 5, sealing ring, 6, upper valve body, 7, piston, 8, collection chamber, 9, negative pressure tube connector, 10, barrier film, 11, glue-feeder, 12, two-position three way magnetic valve, 13, needle-valve, 14, valve box, 15, lower valve body, 16, plastic emitting ozzle.
Detailed description of the invention
By reference to the accompanying drawings, the present invention is described in further details.
As shown in the figure, a kind of negative pressure feedback resorption ejector pin type glue dispensing valve, comprises gauge microsize 1, upper valve body 6, lower valve body 15, plastic emitting ozzle 16, negative pressure tube connector 9, two-position three way magnetic valve 12; Described upper valve body 6 comprises spring compressor 2, Compress Spring 3, limited block 4, sealing ring 5, piston 7; Described lower valve body 15 comprises collection chamber 8, barrier film 10, glue-feeder 11, needle-valve 13, valve box 14;
Described gauge microsize 1 is connected with described limited block 4; Described limited block 4 is connected with described needle-valve 13; Described limited block 4 is connected with described piston 7; Described needle-valve 13 moves up and down in described piston 7; Described needle-valve 13 end is control the valve into glue amount; Compress Spring 3 is arranged with outside described limited block 4 and described limited block 4 and described piston 7; Spring compressor 2 is arranged at described Compress Spring 3 top; There is sealing ring 5 junction of described spring compressor 2 and described upper valve body 6; Described piston 7 is placed in the inner chamber of described upper valve body 6; Described two-position three way magnetic valve 12 is between described upper valve body 6 and described lower valve body 15, and described two-position three way magnetic valve 12 is communicated with the bottom of the inner chamber of described upper valve body 6; Described collection chamber 8 is arranged in lower valve body 15; Described needle-valve 13 end can pass into collection chamber 8, and described glue-feeder 11 is communicated with described collection chamber 8, and described needle-valve 13 end drops to minimum point described glue-feeder 11 and described collection chamber 8 connectivity part can be blocked; The side of described collection chamber 8 is communicated with negative pressure tube connector 9, and described collection chamber 8 and negative pressure tube connector 9 connectivity part are provided with barrier film 10; Described collection chamber 8 and described valve box 14 are separated by described needle-valve 13 end, and after described needle-valve 13 moves upward, described collection chamber 8 is communicated with described valve box 14; Described negative pressure tube connector 9 has two, the inner space of and described upper valve body 6, and another is communicated with described collection chamber 8:
Described gauge microsize 1 top end surface is anti-skid frosted structure; Described needle-valve 13 end adopts spherical structure; Described barrier film 10 is made for elastomeric material; Described sealing ring 5 is made for elastomeric material.
Drive two-position three way magnetic valve 12 to move by the programme-control signal of telecommunication, after compressed air enters the bottom of piston 7 inner chamber, driven plunger 7 drives needle-valve 13 up, and now needle-valve 13 end is opened, and the size that needle-valve 13 end is opened is by gauge microsize 1 regulable control; Glue is sending under the effect of glue laminated power, initiatively up by glue-feeder 11 and enter in valve box 14, and from plastic emitting ozzle 16 plastic emitting; When the signal of telecommunication drives two-position three way magnetic valve 12 back to move to exit again, piston 7 is under Compress Spring 3 acts on, descending and drive needle-valve 13 to close rapidly the end of glue-feeder 11, now stops for glue.
Above-mentioned detailed description of the invention is only for example of the present invention is clearly described, and the restriction not to embodiment.For those of ordinary skill in the field; can also make other changes in different forms on the basis of the above description; here exhaustive without the need to also giving all embodiments, and thus the apparent change of amplifying out or variation be still in protection scope of the present invention.
Claims (5)
1. a negative pressure feedback resorption ejector pin type glue dispensing valve, comprises gauge microsize (1), upper valve body (6), lower valve body (15), plastic emitting ozzle (16), negative pressure tube connector (9), two-position three way magnetic valve (12); Described upper valve body (6) comprises spring compressor (2), Compress Spring (3), limited block (4), sealing ring (5), piston (7); Described lower valve body (15) comprises collection chamber (8), barrier film (10), glue-feeder (11), needle-valve (13), valve box (14);
Described gauge microsize (1) is connected with described limited block (4); Described limited block (4) is connected with described needle-valve (13); Described limited block (4) is connected with described piston (7); Described needle-valve (13) moves up and down in described piston (7); Described needle-valve (13) end is control the valve into glue amount; Compress Spring (3) is arranged with outside described limited block (4) and described limited block (4) and described piston (7); Spring compressor (2) is arranged at described Compress Spring (3) top; There is sealing ring (5) junction of described spring compressor (2) and described upper valve body (6); Described piston (7) is placed in the inner chamber of described upper valve body (6); Described two-position three way magnetic valve (12) is positioned between described upper valve body (6) and described lower valve body (15), and described two-position three way magnetic valve (12) is communicated with the bottom of the inner chamber of described upper valve body (6); Described collection chamber (8) is arranged in lower valve body (15); Described needle-valve (13) end can pass into collection chamber (8), described glue-feeder (11) is communicated with described collection chamber (8), and described needle-valve (13) end drops to minimum point described glue-feeder (11) and described collection chamber (8) connectivity part can be blocked; The side of described collection chamber (8) is communicated with negative pressure tube connector (9), and described collection chamber (8) and negative pressure tube connector (9) connectivity part are provided with barrier film (10); Described collection chamber (8) and described valve box (14) are separated by described needle-valve (13) end, after described needle-valve (13) moves upward, described collection chamber (8) is communicated with described valve box (14); Described negative pressure tube connector (9) has two, and the inner space of and described upper valve body (6), another is communicated with described collection chamber (8).
2. a kind of negative pressure feedback resorption ejector pin type glue dispensing valve according to claim 1, it is characterized in that, described gauge microsize (1) top end surface is the anti-skid structures such as frosted, striped or projection.
3. a kind of negative pressure feedback resorption ejector pin type glue dispensing valve according to claim 1, is characterized in that, described needle-valve (13) end adopts spherical structure.
4. a kind of negative pressure feedback resorption ejector pin type glue dispensing valve according to claim 1, is characterized in that, described barrier film (10) is made for elastomeric material.
5. a kind of negative pressure feedback resorption ejector pin type glue dispensing valve according to claim 1, is characterized in that, described sealing ring (5) is made for elastomeric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510671801.5A CN105149167B (en) | 2015-10-16 | 2015-10-16 | A kind of negative pressure feedback resorption ejector pin type glue dispensing valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510671801.5A CN105149167B (en) | 2015-10-16 | 2015-10-16 | A kind of negative pressure feedback resorption ejector pin type glue dispensing valve |
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| CN105149167A true CN105149167A (en) | 2015-12-16 |
| CN105149167B CN105149167B (en) | 2017-09-01 |
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| CN201510671801.5A Expired - Fee Related CN105149167B (en) | 2015-10-16 | 2015-10-16 | A kind of negative pressure feedback resorption ejector pin type glue dispensing valve |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105413959A (en) * | 2015-12-17 | 2016-03-23 | 大连华工创新科技股份有限公司 | Quick-closed adhesive-coating head |
| CN105618329A (en) * | 2016-03-10 | 2016-06-01 | 中南大学 | Jet dispensing valve and dispensing method thereof |
| CN109290134A (en) * | 2018-11-26 | 2019-02-01 | 深圳市博锐自动化设备有限公司 | A kind of ejector pin type glue dispensing valve |
| CN109395969A (en) * | 2018-11-26 | 2019-03-01 | 深圳市锐德精密科技有限公司 | Mechanical type spraying valve |
| CN110124945A (en) * | 2019-06-15 | 2019-08-16 | 深圳市汇安通科技有限公司 | A kind of glue dispensing valve |
| CN113926649A (en) * | 2021-10-22 | 2022-01-14 | 陈王强 | Suck-back dispensing valve for dispensing machine |
| CN117358522A (en) * | 2023-12-05 | 2024-01-09 | 福建省统一环保科技有限公司 | High-efficiency low-consumption glue gun |
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| CN202570530U (en) * | 2012-05-29 | 2012-12-05 | 张建宇 | Hand-operated constant pressure air glue injector |
| WO2013051697A1 (en) * | 2011-10-07 | 2013-04-11 | 武蔵エンジニアリング株式会社 | Liquid material discharge apparatus and method |
| CN203076148U (en) * | 2012-12-26 | 2013-07-24 | 重庆长江涂装设备有限责任公司 | Glue coating gun with sucking-back function |
| CN205731828U (en) * | 2015-10-16 | 2016-11-30 | 漳州职业技术学院 | A kind of negative pressure feedback resorption ejector pin type glue dispensing valve |
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| CN201552079U (en) * | 2009-10-23 | 2010-08-18 | 薛金龙 | Jet glue dropping valve |
| WO2013051697A1 (en) * | 2011-10-07 | 2013-04-11 | 武蔵エンジニアリング株式会社 | Liquid material discharge apparatus and method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105413959A (en) * | 2015-12-17 | 2016-03-23 | 大连华工创新科技股份有限公司 | Quick-closed adhesive-coating head |
| CN105413959B (en) * | 2015-12-17 | 2018-03-02 | 大连华工创新科技股份有限公司 | A kind of gluing head of quick closedown |
| CN105618329A (en) * | 2016-03-10 | 2016-06-01 | 中南大学 | Jet dispensing valve and dispensing method thereof |
| CN109290134A (en) * | 2018-11-26 | 2019-02-01 | 深圳市博锐自动化设备有限公司 | A kind of ejector pin type glue dispensing valve |
| CN109395969A (en) * | 2018-11-26 | 2019-03-01 | 深圳市锐德精密科技有限公司 | Mechanical type spraying valve |
| CN109290134B (en) * | 2018-11-26 | 2023-12-01 | 深圳市博锐自动化设备有限公司 | Thimble type dispensing valve |
| CN110124945A (en) * | 2019-06-15 | 2019-08-16 | 深圳市汇安通科技有限公司 | A kind of glue dispensing valve |
| CN113926649A (en) * | 2021-10-22 | 2022-01-14 | 陈王强 | Suck-back dispensing valve for dispensing machine |
| CN113926649B (en) * | 2021-10-22 | 2022-09-06 | 中山市普隆半导体设备有限公司 | Suck-back dispensing valve for dispensing machine |
| CN117358522A (en) * | 2023-12-05 | 2024-01-09 | 福建省统一环保科技有限公司 | High-efficiency low-consumption glue gun |
| CN117358522B (en) * | 2023-12-05 | 2024-03-08 | 福建省统一环保科技有限公司 | High-efficiency low-consumption glue gun |
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| CN105149167B (en) | 2017-09-01 |
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Effective date of registration: 20160414 Address after: The victory of Ma On Shan Road, Xiangcheng District West 363000 Fujian city of Zhangzhou province No. 1 Applicant after: Zhangzhou Institute of Technology Address before: 363000 Zhangzhou Institute of Technology, Fujian, Zhangzhou Applicant before: Lin Hede |
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