CN102755943A - Pneumatic control loop for dispensing - Google Patents
Pneumatic control loop for dispensing Download PDFInfo
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- CN102755943A CN102755943A CN2012102739894A CN201210273989A CN102755943A CN 102755943 A CN102755943 A CN 102755943A CN 2012102739894 A CN2012102739894 A CN 2012102739894A CN 201210273989 A CN201210273989 A CN 201210273989A CN 102755943 A CN102755943 A CN 102755943A
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- negative pressure
- valve
- dispensing
- glue
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Abstract
The invention discloses a pneumatic control loop for dispensing. The pneumatic control loop comprises a main pipeline, a voltage stabilizing device is connected onto the main pipeline in series, a negative pressure pipeline is connected onto the main pipeline in parallel, the tail end of the negative pressure pipeline and an outlet of an electric proportional valve are jointly connected onto two input ports of a change valve, an outlet of the change valve is connected with an inlet of a dispensing needle tube, and a flow control valve, a vacuum device and a negative pressure switch are sequentially connected onto the negative pressure pipeline in series. The pneumatic control loop achieves digital control and digital display of pressure control and brings convenience to control of dispensing amount. The electric proportional valve is arranged in the loop so that a pressure value of a pressure loop is stabilized in a certain scope and dispensing accuracy is improved. The negative pressure pipeline is arranged to provide negative pressure for the dispensing needle tube when the dispensing needle tube does not dispense, so that glue liquid in the dispensing needle tube can not drop under action of gravity, raw materials are saved, and environment are protected.
Description
Technical field
The control loop that encapsulation point glue is used in the present invention relates in the electronics manufacturing.
Background technology
Point glue is a kind of technology, also claims applying glue, gluing, encapsulating, drips glue etc., and be handle
Electronics glue, oil or other liquidSmear, embedding, point drip on the product, let product play to paste, effects such as embedding, insulation, fixing, smooth surface.LED develops because of energy-conservation having obtained in recent years fast, and LED need put glue in process of production chip is fixed encapsulation.At present, time-pressure fluid point glue mode with its low cost, easy to operate, be convenient to safeguard and characteristics such as widely applicable, become the most general some glue mode of use in the electronics manufacturing.It is to the main line air feed, to a plastic pin pipe control point glue through magnetic valve.Typical time-pressure spot glue ties up in the glue process, and magnetic valve is opened, and Compressed Gas is expressed into colloid on the workpiece from needle tubing, with the fixing or mounted on surface (SMT) that realizes chip etc.Require some glue measurer that uniformity is highly arranged in the reality, and because the influence of factors such as this process receptor site glue time, pressure, colloid rheological behavior, the interior colloid surplus of syringe, temperature and syringe size, the fluctuation of some glue amount is bigger.Also be always time-emphasis and the difficult point of pressure spot glue process model building.This some glue control technology shortcoming is: along with a glue periodically carries out, the colloid surplus in the syringe reduces, and the colloid amount of pointing out can reduce gradually.Simultaneously and since the glue in the needle tubing when not putting glue because of the gravity effect, be prone to drip from needle tubing, wasted raw material, influenced production.
Summary of the invention
The object of the invention solves in the LED encapsulation process exactly, and some glue amount is inhomogeneous, does not put the problem that glue time point plastic pin pipe is prone to drip glue.
The technical scheme that the present invention adopts is: a kind of Pneumatic control circuit that is used for a glue; It is characterized in that it comprises with some plastic pin pipe is connected to a main line of plastic pin pipe air feed; Be serially connected with electric Proportion valve on the described main line, described electric Proportion valve front end pipeline is provided with bypass line, and bypass line is connected with the control interface pipe of electric Proportion valve; Be serially connected with pressure switch and power amplifier on the bypass line successively, power amplifier is connected with control circuit; Be parallel with negative pressure line on the described main line; Described negative pressure line is terminal to be connected on two input ports of reversal valve with the electric Proportion valve outlet jointly; The outlet of said reversal valve is connected with the inlet of some plastic pin pipe, is serially connected with flow control valve, vacuum plant and negative pressure pressure switch on the described negative pressure line successively.
Beneficial effect of the present invention is: the present invention is equipped with pressure switch on negative pressure regulating loop and positive hydraulic circuit, realizes that pressure controlled Digital Control and numeral show, the conveniently control of some glue amount.Be provided with electric Proportion valve in the loop, thereby force value that can pressure circuit is stabilized in the setting value certain limit, thereby improves a some glue precision; Owing to be provided with negative pressure line, negative pressure is provided when not putting glue, for some plastic pin pipe, the glue in this sampling point plastic pin pipe can not drip because of the gravity effect, has practiced thrift raw material, has protected environment.
Description of drawings
Fig. 1 is a sketch map of the present invention.
Among the figure, 1, electric Proportion valve, 2, reversal valve, 3, the negative pressure pressure switch, 4, vacuum plant, 5, power amplifier, 6, control circuit, 7, the malleation pressure switch, 8, flow control valve, 9, bypass line, 10, main line, 11, negative pressure line.
The specific embodiment
A kind of Pneumatic control circuit that is used for a glue of the present invention; As shown in Figure 1; It comprises with some plastic pin pipe and being connected to a main line 10 of plastic pin pipe air feed that be serially connected with electric Proportion valve 1 on the main line 10, described electric Proportion valve 1 front end pipeline is provided with bypass line 9; Bypass line 9 is connected with the control interface pipe of electric Proportion valve 1; Be serially connected with pressure switch 7 and power amplifier 5 on the bypass line 9 successively, power amplifier 5 is connected with control circuit 6, bypass line 9, malleation pressure switch 7, control circuit 6, power amplifier 5 and electric Proportion valve 1 common formation stable-pressure device.Be parallel with negative pressure line 11 on the main line 10; Negative pressure line 11 terminal outlets with electric Proportion valve 1 are connected on two input ports of reversal valve 2 jointly; The outlet of said reversal valve 2 is connected with the inlet of some plastic pin pipe, is serially connected with flow control valve 8, vacuum plant 4 and negative pressure pressure switch 3 on the described negative pressure line 11 successively.The vacuum plant 4 of present embodiment is the simple vacuum generating means.
Claims (1)
1. Pneumatic control circuit that is used for a glue; It is characterized in that it comprises with some plastic pin pipe is connected the main line (10) to a plastic pin pipe air feed; Be serially connected with electric Proportion valve (1) on the described main line (10); Described electric Proportion valve (1) front end pipeline is provided with bypass line (9); Bypass line (9) is connected with the control interface pipe of electric Proportion valve (1), is serially connected with pressure switch (7) and power amplifier (5) on the bypass line (9) successively, and power amplifier (5) is connected with control circuit (6); Be parallel with negative pressure line (11) on the described main line (10); Described negative pressure line (11) is terminal to be connected on two input ports of reversal valve (2) with electric Proportion valve (1) outlet jointly; The outlet of said reversal valve (2) is connected with the inlet of some plastic pin pipe, is serially connected with flow control valve (8), vacuum plant (4) and negative pressure pressure switch (3) on the described negative pressure line (11) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102739894A CN102755943A (en) | 2012-08-03 | 2012-08-03 | Pneumatic control loop for dispensing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102739894A CN102755943A (en) | 2012-08-03 | 2012-08-03 | Pneumatic control loop for dispensing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102755943A true CN102755943A (en) | 2012-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102739894A Pending CN102755943A (en) | 2012-08-03 | 2012-08-03 | Pneumatic control loop for dispensing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102755943A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105436035A (en) * | 2015-12-29 | 2016-03-30 | 长沙知元科技有限公司 | Bottle-making machine and dotting device and dotting method thereof |
| CN105521923A (en) * | 2015-03-26 | 2016-04-27 | 苏州光宝微电子科技有限公司 | Dispensing controller |
| CN109718967A (en) * | 2019-01-24 | 2019-05-07 | 浙江理工大学 | A kind of glue-spraying mechanism that can adjust gel quantity and control method |
| CN112517543A (en) * | 2019-09-19 | 2021-03-19 | 宁波舜宇光电信息有限公司 | Optical product cleaning device |
| CN112838281A (en) * | 2021-01-07 | 2021-05-25 | 广州擎天实业有限公司 | Negative pressure control method and system for formation of lithium ion battery |
| CN114074056A (en) * | 2020-08-20 | 2022-02-22 | 深圳市裕展精密科技有限公司 | Lead-in device, lead-in method and product |
| CN114335323A (en) * | 2022-03-14 | 2022-04-12 | 武汉飞恩微电子有限公司 | Pressure chip packaging method, computer readable storage medium and computer device |
| CN114433435A (en) * | 2022-01-13 | 2022-05-06 | 深圳市轴心自控技术有限公司 | Glue amount compensation control system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2717448Y (en) * | 2004-04-08 | 2005-08-17 | 南开大学 | Pneumatic micro-injection controller |
| JP2006192371A (en) * | 2005-01-13 | 2006-07-27 | Shinwa Shokai:Kk | Quantitative liquid discharge apparatus and its controlling method |
| KR20070083591A (en) * | 2004-08-26 | 2007-08-24 | 무사시 엔지니어링 가부시키가이샤 | Device for discharging fixed quantity of liquid |
| CN202683424U (en) * | 2012-08-03 | 2013-01-23 | 铜陵富仕三佳机器有限公司 | Pneumatic control loop used for adhesive dispensing |
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2012
- 2012-08-03 CN CN2012102739894A patent/CN102755943A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2717448Y (en) * | 2004-04-08 | 2005-08-17 | 南开大学 | Pneumatic micro-injection controller |
| KR20070083591A (en) * | 2004-08-26 | 2007-08-24 | 무사시 엔지니어링 가부시키가이샤 | Device for discharging fixed quantity of liquid |
| JP2006192371A (en) * | 2005-01-13 | 2006-07-27 | Shinwa Shokai:Kk | Quantitative liquid discharge apparatus and its controlling method |
| CN202683424U (en) * | 2012-08-03 | 2013-01-23 | 铜陵富仕三佳机器有限公司 | Pneumatic control loop used for adhesive dispensing |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105521923A (en) * | 2015-03-26 | 2016-04-27 | 苏州光宝微电子科技有限公司 | Dispensing controller |
| CN105521923B (en) * | 2015-03-26 | 2018-09-07 | 苏州光宝科技股份有限公司 | Dispensing controller |
| CN105436035A (en) * | 2015-12-29 | 2016-03-30 | 长沙知元科技有限公司 | Bottle-making machine and dotting device and dotting method thereof |
| CN105436035B (en) * | 2015-12-29 | 2017-11-21 | 长沙知元科技有限公司 | Bottle-making machine and its device for dotting, get method ready |
| CN109718967A (en) * | 2019-01-24 | 2019-05-07 | 浙江理工大学 | A kind of glue-spraying mechanism that can adjust gel quantity and control method |
| CN112517543A (en) * | 2019-09-19 | 2021-03-19 | 宁波舜宇光电信息有限公司 | Optical product cleaning device |
| CN114074056A (en) * | 2020-08-20 | 2022-02-22 | 深圳市裕展精密科技有限公司 | Lead-in device, lead-in method and product |
| CN114074056B (en) * | 2020-08-20 | 2023-08-08 | 富联裕展科技(深圳)有限公司 | Introduction device, introduction method and product |
| CN112838281A (en) * | 2021-01-07 | 2021-05-25 | 广州擎天实业有限公司 | Negative pressure control method and system for formation of lithium ion battery |
| CN114433435A (en) * | 2022-01-13 | 2022-05-06 | 深圳市轴心自控技术有限公司 | Glue amount compensation control system |
| CN114335323A (en) * | 2022-03-14 | 2022-04-12 | 武汉飞恩微电子有限公司 | Pressure chip packaging method, computer readable storage medium and computer device |
| CN114335323B (en) * | 2022-03-14 | 2022-07-15 | 武汉飞恩微电子有限公司 | Pressure chip packaging method, computer readable storage medium and computer device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121031 |