CN202316251U - Volumetric quantitative adhesive dispensing system and quantitative valve device for LED (light emitting diode) packaging - Google Patents
Volumetric quantitative adhesive dispensing system and quantitative valve device for LED (light emitting diode) packaging Download PDFInfo
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- CN202316251U CN202316251U CN2011204192464U CN201120419246U CN202316251U CN 202316251 U CN202316251 U CN 202316251U CN 2011204192464 U CN2011204192464 U CN 2011204192464U CN 201120419246 U CN201120419246 U CN 201120419246U CN 202316251 U CN202316251 U CN 202316251U
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Abstract
The utility model discloses a volumetric quantitative adhesive dispensing system and a quantitative valve device for LED (light emitting diode) packaging. The volumetric quantitative adhesive dispensing system comprises the quantitative valve device as well as a weighing module and a controller, wherein the quantitative valve device is arranged below a material barrel and is provided with an adhesive inlet communicated with the material barrel; an adhesive outlet of the quantitative valve device is connected with an adhesive dispensing head; the quantitative valve device comprises an accommodating cavity sleeve pipe as well as a push rod arranged in the accommodating cavity sleeve pipe and a connecting rod for switching opening and closing between the adhesive inlet and the adhesive outlet; the push rod is driven by a linear motor; and the controller measures a relation between the adhesive dispensing amount and the step number of driving the push rod by the linear motor by the weighing module, and controls the step number of the adhesive dispensing amount of each point by instructions. According to the volumetric quantitative adhesive dispensing system and device for LED packaging, as the quantitative valve and the weighing control are adopted, constant adhesive dispensing amount is realized, and the light color stability of product is guaranteed.
Description
Technical field
The utility model relates to a kind of mechanical system and device, relates in particular to the positive displacement of using on a kind of white light LEDs high viscosity glue encapsulation special equipment and quantitatively puts colloid system and proportional valve device thereof.
Background technology
In the LED Packaging Industry, white light LEDs is the emerging product of LED that is expected most, and its development potentiality in illumination market is worth expectation.But its photochromic stability can not control the development that has greatly restricted white light LEDs.Therefore, the solution of problem such as photochromic, optical efficiency, light decay becomes several big key elements in the LED processing procedure.To photochromic stability, key is effectively to control uniform ingredients and the glue amount constant problem of glue in each LED measuring cup.
In the white light LEDs of conventional package, fluorescent glue adopts epoxy resins insulation glue or silica gel usually, but since silica gel to join white light LEDs life-span of powder obviously long than epoxy resin, so most of client uses silica gel now; The rate of deposition of silica gel is very low, and composition is more even, and weight is also relatively more consistent.So what need to be resolved hurrily is effectively to control the glue amount constant problem of glue in each LED measuring cup.
Current white light LEDs production firm requires control within the specific limits to same batch LED glue amount; And the physical and chemical performance of glue can be because of the environmental changes such as size of incorporation time or mixer; Constant even be under pressure, the amount that flows out cavity also can change to some extent, therefore causes the glue amount of every bit in the same batch of LED measuring cup all can change to some extent; The photochromic poor stability of the white light LEDs that final production is gone out, product percent of pass is not high.
Therefore, prior art awaits to improve and development.
The utility model content
The purpose of the utility model is to provide a kind of positive displacement of the LED of being used for encapsulation quantitatively to put colloid system and proportional valve device, solves the amount constant problem of high viscosity glue in each LED measuring cup, thereby improves photochromic stability.
The technical scheme of the utility model comprises:
A kind of positive displacement of the LED of being used for encapsulation is quantitatively put colloid system, wherein, comprises a certain amount of valve gear, and a Weighing module, and controller; Said proportional valve device is arranged on barrel below, and has the Jiao Kou that goes into of this barrel of connection; The gum outlet of said proportional valve device connects a Glue dripping head, and said Weighing module is set below this Glue dripping head; Said proportional valve device comprises a cavity volume sleeve pipe, and a push rod and that in this cavity volume sleeve pipe, is provided with is used between said Jiao Kou of going into and said gum outlet, switching the connecting rod that opens and closes; Said push rod is by a straight line motor-driven; Said controller is measured the step number of the said push rod of said linear motor driving and the relation of some glue glue amount through said Weighing module, and the step number of the said every some some glue amount of commands for controlling.
Described positive displacement is quantitatively put colloid system, and wherein, said connecting rod setting has the top on an inclined-plane, and realizes the keying switching of said Jiao Kou of going into and said gum outlet through rotating this connecting rod.
Described positive displacement is quantitatively put colloid system, and wherein, said Jiao Kou of going into and said gum outlet are oppositely arranged.
A kind of positive displacement of the LED of being used for encapsulation is quantitatively put colloid system proportional valve device; Wherein, Comprise a cavity volume sleeve pipe, and on this cavity volume sleeve pipe, be provided with go into Jiao Kou and gum outlet, the said Jiao Kou of going into is used to connect a barrel; Said gum outlet is used to connect a Glue dripping head, and a push rod and that in this cavity volume sleeve pipe, is provided with is used between said Jiao Kou of going into and said gum outlet, switching the connecting rod that opens and closes; Said push rod is by a straight line motor-driven.
Described positive displacement is quantitatively put colloid system proportional valve device, and wherein, said connecting rod setting has the top on an inclined-plane, and realizes the keying switching of said Jiao Kou of going into and said gum outlet through rotating this connecting rod.
Described positive displacement is quantitatively put colloid system proportional valve device, and wherein, said Jiao Kou of going into and said gum outlet are oppositely arranged.
The positive displacement of a kind of LED of being used for encapsulation that the utility model provided is quantitatively put colloid system and proportional valve device; Owing to adopted proportional valve and weighed control; Some glue capacity when having realized dropwise controlling the LED encapsulation; Can with the high viscosity glue that has mixed fluorescent material through quantitative valve point to the led chip of accomplishing bonding wire; Combine weighing device to measure glue weight (hereinafter to be referred as the glue amount) back again and feed back to the some glue parameter that controller is adjusted valve, thereby realize that some glue amount is constant, guarantee the photochromic stability of product through software.
Description of drawings
The positive displacement that Fig. 1 is used for LED encapsulation for the utility model is quantitatively put the overall structure sketch map of colloid system.
The positive displacement that Fig. 2 is used for LED encapsulation for the utility model is quantitatively put the proportional valve duty overall structure sketch map of colloid system.
Three-phase when Fig. 3 a-Fig. 3 d the is respectively the utility model proportional valve turnover glue bar action sketch map that is rotatably connected.
The positive displacement that Fig. 4 is used for LED encapsulation for the utility model is quantitatively put the structural representation of colloid system proportional valve connecting rod.
The specific embodiment
Below in conjunction with accompanying drawing, will carry out more detailed explanation to each preferred embodiment of the utility model.
The positive displacement that is used for the LED encapsulation of the utility model is quantitatively put colloid system and the preferred embodiment of proportional valve device thereof; Its system comprises a certain amount of valve arrangement 110, a Weighing module 120 and a controller 130, and as shown in Figure 1, said proportional valve 110 is the glue that has mixed fluorescent material dropwise to be put be added on the led chip of accomplishing bonding wire; And the signal controlling through controller 130; The step number of advancing of adjustment linear electric motors 111, as shown in Figure 2, to realize the constant of some glue amount.
Said Weighing module 120 is arranged on said proportional valve 110 belows; Can realize the glue of quantitative (being specified from software interface by the client) is carried out weight detecting; Give control software with detected data passes again, after computed in software, contrast, send pacing is counted signal and is given controller the most at last; Receive the step number instruction of software 131 by said controller 130 after, again linear electric motors are carried out the step number adjustment.
Specifically, glue is communicated to proportional valve 110 in the barrel 140, drives extruding through the glue in this proportional valve 110 by said linear electric motors 111; And weigh by said Weighing module 120; The step number of advancing of weight data that obtains and linear electric motors 111 is divided by, thereby obtains the glue extrusion capacity in per step, and to the needed glue amount of LED packaged chip of different model; Confirm the needed step number of processing by software and said controller 130, promptly put the glue amount of glue.
For guaranteeing the degree of accuracy, can take multiple measurements, obtaining more balanced and control data accurately, this process can realize in the utility model is put the debug process of colloid system.And owing in process, possibly there be other environment parameter requirements, for example LED model, wear and tear in machines etc. cause the degree of accuracy of system to descend, and at this moment, can carry out above-mentioned weighing and measuring process again, proofread and correct again.
The key of the utility model point colloid system is the improvement of proportional valve device; Its structure is shown in Fig. 3 a to Fig. 3 d; It comprises a cavity volume sleeve pipe 112; This cavity volume sleeve pipe 112 is provided with one and goes into glue mouth 113, through syndeton for example seal head and sebific duct etc. be communicated with said barrel 140 insert from barrel so that will be mixed with the glue of fluorescent material; And said relatively opposite side of going into glue mouth 113 is provided with gum outlet 116 on said cavity volume sleeve pipe 112.Be respectively arranged with a rotatable connecting rod 114 at the two ends of said cavity volume sleeve pipe 112; And one can be along the push rod 115 of said cavity volume sleeve pipe 112 tube chamber direction move left and right; The front end setting of said connecting rod 114 has an inclined-plane 117; As shown in Figure 4, the rotation of said connecting rod 114 can go between glue mouth 113 and the gum outlet 116 to open and close switching, cooperates said push rod 115 can realize the quantitative sealant yielding of glue simultaneously.
The operation principle of said proportional valve 110: after the control signal that receives said controller 130; At first drive push rod 115 from extracting glue in the barrel 140 to the metal closed chamber of sealing through a step-by-step linear electric motor 111; Shown in Fig. 3 a and Fig. 3 b; Said connecting rod 114 rotations this moment remain on inclined-plane 117 towards the said position of going into glue mouth 113; Thereby keep going into the opening of glue mouth 113, this moment, said push rod 115 moved right, and the glue in the barrel 140 is utilized in the said cavity volume sleeve pipe 112 of principle of negative pressure suction.And then close the metal closed chamber and the barrel interface is promptly gone into glue mouth 113; Shown in Fig. 3 c and Fig. 3 d; This moment, 114 rotations of said connecting rod also remained on the position of its inclined-plane 117 towards gum outlet 116, closed the said glue mouth 113 of going into when keeping gum outlet to open, and this moment, said push rod 115 inwardly pushed; Can the glue in the cavity volume be extruded from gum outlet, for example extrude and be connected to Glue dripping head through exchanging structure.
The utility model is through the be rotatably connected upset of bar of a three phase connection; Connect metal closed chamber and gum outlet, the glue amount of advancing and extruding requirement through step-by-step linear electric motor again is after high viscosity glue falls into the LED measuring cup; Weighing system will measure top glue weight; And data are fed back to control software, by the mean value of the stepping point glue amount of control software through calculating said linear electric motors, and will be worth and standard value that the client configures is in advance compared; Little like mean value, then through controlling the step number increase point glue amount next time that increases every said linear electric motors; Big like mean value, then the step number through every said linear electric motors of control minimizing reduces some glue amount next time.
The adjustment of the utility model is very convenient, is different from the mode that relies on empirical value and simulation algorithm in the some colloid system of prior art, can control through final the formation more accurately of the data computation of control software.Because the phosphor gel amount is a photochromic stable key factors, therefore, effectively controls the glue amount by this method, can make the utility model system and method produce same batch moving the control within the specific limits of white light LEDs glue quantitative change, improve the qualification rate of product.
Because the glue unit of weight is very little, conventional instrument can't accurately be measured, and it is that 60～220 milligrams, precision are 0.1 milligram high-accuracy electronic scale that the Weighing module in the utility model system adopts range, can guarantee the accuracy of measuring.
Simultaneously, the operator is according to the needs of oneself, on control software, can configure standard value and weighs and count; Restart glue dispensing valve and carry out a glue; Set count after, glue dispensing valve quits work, and through Weighing module the upside actual weight is fed back to software again; Utilize control software through gross weight, count and the step number of linear electric motors can calculate every mean value; Again mean value and standard value are compared, as be worth less than standard value the step number of advancing of motor when software is put glue through the controller increase average sparing next time; Like average even value overgauge value, the step number of advancing of motor when software reduces to put glue through controller next time; Reset parameter, continue the some glue of any down, with this periodic duty, the client can optionally measure and adjust at any time.The utility model weighing system can also play monitoring in process of production simultaneously, so that the glue amount of the point of adjustment at any time glue.
The purposes of the said controller of the utility model comprises: a. receiving software signal; B. through the software signal indication motor running and gas circuit are controlled.Its principle adopts conventional movement control mode, is not this patent emphasis, does not detail in the text.
The utility model proportional valve is going into to be respectively arranged with on Jiao Kou and the gum outlet into glue mouth adapter, gum outlet adapter, and Glue dripping head, through the Glue dripping head final packaging to led chip.The utility model is compared with traditional valve body, and its proportional valve adopts the closed chamber of metal material, more can bear certain pressure load than the container of other material, high viscosity glue is flowed into and be under pressure when flowing out cavity to reduce to minimum.Moreover, use the stepping line motor can precisely controlling displacement, avoid error, effectively control the glue amount in each LED Lamp cup, its glue amount is remained in the minimal ripple scope.
The utility model system, apparatus and method cooperate with controller through above-mentioned proportional valve, weighing system, the quantitative control when being achieved glue, thus efficiently solve the photochromic stability problem of white light LEDs.
Should be understood that above-mentioned description to the utility model preferred embodiment is comparatively concrete, can not therefore think the restriction to the utility model scope of patent protection, the utility model scope of patent protection should be as the criterion with accompanying claims.
Claims (6)
1. a positive displacement that is used for the LED encapsulation is quantitatively put colloid system, it is characterized in that, comprises a certain amount of valve gear, and a Weighing module, and controller; Said proportional valve device is arranged on barrel below, and has the Jiao Kou that goes into of this barrel of connection; The gum outlet of said proportional valve device connects a Glue dripping head, and said Weighing module is set below this Glue dripping head; Said proportional valve device comprises a cavity volume sleeve pipe, and a push rod and that in this cavity volume sleeve pipe, is provided with is used between said Jiao Kou of going into and said gum outlet, switching the connecting rod that opens and closes; Said push rod is by a straight line motor-driven; Said controller is measured the step number of the said push rod of said linear motor driving and the relation of some glue glue amount through said Weighing module, and the step number of the said every some some glue amount of commands for controlling.
2. positive displacement according to claim 1 is quantitatively put colloid system, it is characterized in that, said connecting rod setting has the top on an inclined-plane, and realizes the keying switching of said Jiao Kou of going into and said gum outlet through rotating this connecting rod.
3. positive displacement according to claim 1 is quantitatively put colloid system, it is characterized in that, said Jiao Kou of going into and said gum outlet are oppositely arranged.
4. a positive displacement that is used for the LED encapsulation is quantitatively put colloid system proportional valve device; It is characterized in that; Comprise a cavity volume sleeve pipe, and on this cavity volume sleeve pipe, be provided with go into Jiao Kou and gum outlet, the said Jiao Kou of going into is used to connect a barrel; Said gum outlet is used to connect a Glue dripping head, and a push rod and that in this cavity volume sleeve pipe, is provided with is used between said Jiao Kou of going into and said gum outlet, switching the connecting rod that opens and closes; Said push rod is by a straight line motor-driven.
5. positive displacement according to claim 4 is quantitatively put colloid system proportional valve device, it is characterized in that, said connecting rod setting has the top on an inclined-plane, and realizes the keying switching of said Jiao Kou of going into and said gum outlet through rotating this connecting rod.
6. positive displacement according to claim 4 is quantitatively put colloid system proportional valve device, it is characterized in that, said Jiao Kou of going into and said gum outlet are oppositely arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204192464U CN202316251U (en) | 2011-10-28 | 2011-10-28 | Volumetric quantitative adhesive dispensing system and quantitative valve device for LED (light emitting diode) packaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204192464U CN202316251U (en) | 2011-10-28 | 2011-10-28 | Volumetric quantitative adhesive dispensing system and quantitative valve device for LED (light emitting diode) packaging |
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| Publication Number | Publication Date |
|---|---|
| CN202316251U true CN202316251U (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204192464U Expired - Fee Related CN202316251U (en) | 2011-10-28 | 2011-10-28 | Volumetric quantitative adhesive dispensing system and quantitative valve device for LED (light emitting diode) packaging |
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| Country | Link |
|---|---|
| CN (1) | CN202316251U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102441511A (en) * | 2011-10-28 | 2012-05-09 | 深圳翠涛自动化设备股份有限公司 | Positive displacement quantitative dispensing system for LED packaging, apparatus and method thereof |
| CN104801465A (en) * | 2015-03-16 | 2015-07-29 | 苏州优逸克智能科技有限公司 | Rotary dispensing valve |
| CN105057166A (en) * | 2015-09-06 | 2015-11-18 | 深圳市源磊科技有限公司 | LED packaging precipitation preventing device, precipitation preventing control method and LED dispenser |
-
2011
- 2011-10-28 CN CN2011204192464U patent/CN202316251U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102441511A (en) * | 2011-10-28 | 2012-05-09 | 深圳翠涛自动化设备股份有限公司 | Positive displacement quantitative dispensing system for LED packaging, apparatus and method thereof |
| CN102441511B (en) * | 2011-10-28 | 2013-09-18 | 深圳翠涛自动化设备股份有限公司 | Positive displacement quantitative dispensing system for LED packaging, apparatus and method thereof |
| CN104801465A (en) * | 2015-03-16 | 2015-07-29 | 苏州优逸克智能科技有限公司 | Rotary dispensing valve |
| CN105057166A (en) * | 2015-09-06 | 2015-11-18 | 深圳市源磊科技有限公司 | LED packaging precipitation preventing device, precipitation preventing control method and LED dispenser |
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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: 20120711 Termination date: 20191028 |