CN204523422U - The fluid glue dispensing valve of Piezoelectric Driving and point glue equipment - Google Patents
The fluid glue dispensing valve of Piezoelectric Driving and point glue equipment Download PDFInfo
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- CN204523422U CN204523422U CN201520051173.6U CN201520051173U CN204523422U CN 204523422 U CN204523422 U CN 204523422U CN 201520051173 U CN201520051173 U CN 201520051173U CN 204523422 U CN204523422 U CN 204523422U
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Abstract
The utility model discloses a kind of fluid glue dispensing valve and point glue equipment of Piezoelectric Driving, belong to point glue equipment field, described fluid glue dispensing valve comprises valve body, piezoelectric actuator, support member, the ultrasonic transformer of horizontally set and the drive link of vertical setting, one end of described piezoelectric actuator and support member is all arranged on described valve body, the other end is all connected with one end of described ultrasonic transformer, and the other end of described ultrasonic transformer connects described drive link.Compared with prior art, the form that the utility model adopts piezoelectric actuator to coordinate with ultrasonic transformer, makes action stability and response speed strengthen, simultaneously because piezoelectric actuator distortion is independent, so can realize larger deflection.
Description
Technical field
The utility model relates to point glue equipment field, refers to a kind of fluid glue dispensing valve of Piezoelectric Driving especially and has the point glue equipment of this fluid glue dispensing valve.
Background technology
Fluid dispensing technology is a key technology in microelectronics Packaging, and fluid dispensing technology mainly contains two kinds, contact point glue and contactless glue.Traditional dispensing technology be contact point glue comprise metering tubular type point glue, piston type point glue and time/mode such as pressure-type point glue.And contactless glue can be divided into pneumatic type point glue and driving type piezoelectric actuator point glue.The main power source of pneumatic type point glue is compressed air.Piezoelectric type spray site glue adopts lever amplification principle or hydraulic pressure amplification principle to be amplified by the micro-displacement of stacked piezoelectric pottery, then drives striker to coordinate with nozzle valve seat the injection realizing glue.
The CN102935416A patent document that Central South University Deng Gui tinkling of pieces of jade etc. propose, name is called " based on Piezoelectric Ceramic and the flexible glue dispensing valve amplifying wall ", its implementation is: glue dispensing valve device comprises glue channel part, nozzle segment and nozzle needle, described nozzle segment, glue channel part and nozzle needle are arranged on one end of pedestal, one end of flexible magnifying arm is docked with at least one piezoelectric actuator and is arranged on the other end of described pedestal, and the other end of described flexible magnifying arm is connected with described nozzle needle.
The PICO glue dispensing valve of Nordson Corp of the U.S. adopts one piece of stacked piezoelectric pottery as drive part, and the inside of stacked piezoelectric pottery used is divided into two parts, and what every part laminate electrode was taked is interdigitated connected mode in parallel.In two parts that stacked piezoelectric pottery is inner, the distortion of arbitrary portion, all can be subject to the restriction of adjacent part boundary condition, directly limit and have impact on the bulk deformation amount of stacked piezoelectric pottery.In addition, this kind of ceramic structure of PICO manufacturing cost is high, and has arbitrary portion to damage in two parts of pottery inside, and ceramic integral all needs to change, and maintenance cost is also high.
Such scheme one adopts cantilever beam structure, for ensureing that displacement exports, needs the brachium grown very much, and result stability and response speed are reduced; Such scheme two drive part is that two parts be divided into by a monolithic piezoelectric pottery are formed, and during work, interacts between two parts, directly limit deflection.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of stable output, fast response time, the fluid glue dispensing valve of the Piezoelectric Driving that deflection is large and point glue equipment.
For solving the problems of the technologies described above, the utility model provides technical scheme as follows:
On the one hand, provide a kind of fluid glue dispensing valve of Piezoelectric Driving, comprise valve body, piezoelectric actuator, support member, the ultrasonic transformer of horizontally set and the drive link of vertical setting, wherein:
One end of described piezoelectric actuator and support member is all arranged on described valve body, and the other end is all connected with one end of described ultrasonic transformer, and the other end of described ultrasonic transformer connects described drive link.
Further, described piezoelectric actuator comprises up and down spaced first stacked piezoelectric pottery and the second stacked piezoelectric pottery successively; Described support member is bolt, and described bolt is between described first stacked piezoelectric pottery and the second stacked piezoelectric pottery.
Further, described piezoelectric actuator is stacked piezoelectric pottery, and described support member is flexible hinge bar, and described piezoelectric actuator and support member are oppositely arranged up and down.
Further, preloading spring is provided with above or below described ultrasonic transformer.
Further, described valve body is with inner chamber, and described piezoelectric actuator, support member, ultrasonic transformer are all arranged in described inner chamber.
Further, described drive link is provided with top nut and lower nut in the junction of described drive link and ultrasonic transformer.
Further, described fluid glue dispensing valve also comprises spout part, described spout part comprises the injection valve seat with spray orifice, the inside of described injection valve seat is provided with striker and striker external member above described spray orifice, the upper end of described striker contacts with described drive link, described striker is equipped with and has elastic component.
Further, described flexible member is spring leaf.
Further, the upper end of described striker is also provided with striker nut;
Described striker external member is arranged in described injection valve seat by spacing jump ring;
Described spout part is connected to the bottom of described valve body by bolt or draw-in groove.
On the other hand, provide a kind of point glue equipment, comprise the fluid glue dispensing valve of above-mentioned Piezoelectric Driving.
Of the present utility model have following beneficial effect:
Compared with prior art, when the fluid glue dispensing valve of Piezoelectric Driving of the present utility model works, when powering on to piezoelectric actuator, described piezoelectric actuator can produce telescopic shape change, be transferred to ultrasonic transformer, make ultrasonic transformer around support member counterclockwise or rotate clockwise, promote drive link and move up or down, achieve the amplification of deformation.The form that the utility model adopts piezoelectric actuator to coordinate with ultrasonic transformer, instead of flexible magnifying arm of the prior art, avoiding longer brachium makes result stability and response speed reduce, simultaneously because piezoelectric actuator distortion is independent, so can realize larger deflection.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the fluid glue dispensing valve of Piezoelectric Driving of the present utility model;
Fig. 2 is that piezoelectric actuator embodiment illustrated in fig. 1 powers up deformation pattern;
Fig. 3 is that piezoelectric actuator embodiment illustrated in fig. 1 adds electrical schematic;
Fig. 4 is the structural representation of another embodiment of the fluid glue dispensing valve of Piezoelectric Driving of the present utility model;
Fig. 5 is that piezoelectric actuator embodiment illustrated in fig. 4 powers up deformation pattern.
Detailed description of the invention
For making the technical problems to be solved in the utility model, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The utility model provides a kind of fluid glue dispensing valve of Piezoelectric Driving, as Figure 1-5, comprise valve body 1,1 ', piezoelectric actuator 11,12,12 ', support member 13,11 ', the ultrasonic transformer 2,2 ' of horizontally set and the vertical drive link 3,3 ' arranged, wherein:
One end of piezoelectric actuator 11,12,12 ' and support member 13,11 ' is all arranged on valve body 1,1 ', and the other end is all connected with one end of ultrasonic transformer 2,2 ', the other end connection for transmission bar 3,3 ' of ultrasonic transformer 2,2 '.
During work, first, piezoelectric actuator 11,12,12 ' after powering on is under inverse piezoelectric activity, produce telescopic shape change, and then drive the ultrasonic transformer 2,2 ' be connected with it to move, due to the existence of support member 13,11 ', ultrasonic transformer 2,2 ' can only do around support member 13,11 ' and transport clockwise or counterclockwise, under it drives, drive link 3,3 ' does up-down vibration.
Compared with prior art, the form that the utility model adopts piezoelectric actuator 11,12,12 ' to coordinate with ultrasonic transformer 2,2 ', instead of flexible magnifying arm of the prior art, avoiding longer brachium makes result stability and response speed reduce, simultaneously because piezoelectric actuator 11,12,12 ' is out of shape independent, so can realize larger deflection.
Concrete, the utility model can have various structures form, now only lifts more typical two kinds of versions and is explained as follows:
Version one:
As shown in Figure 1, piezoelectric actuator preferably includes up and down spaced first stacked piezoelectric pottery 11 and the second stacked piezoelectric pottery 12 successively; Support member is preferably bolt 13, and bolt 13 is between the first stacked piezoelectric pottery 11 and the second stacked piezoelectric pottery 12.Piezoelectric actuator is not limited to stacked piezoelectric pottery, can be structure or the assembly of any piezoelectric class formation.Bolt is preferably tightened on valve body 1, connects ultrasonic transformer 2 simultaneously, for the first stacked piezoelectric pottery 11 and the second stacked piezoelectric pottery 12 provide pretightning force.
When this glue dispensing valve works, as shown in Figure 2, first, the first stacked piezoelectric pottery 11 powers up elongation, and the second stacked piezoelectric pottery 12 does not power up, and does not change.Affect by this, ultrasonic transformer 2 does clockwise rotation, drives drive link 3 to move downward simultaneously.
Subsequently, the first stacked piezoelectric pottery 11 power-off foreshorten to original length, and meanwhile, the second stacked piezoelectric pottery 12 powers up elongation.Same, now, ultrasonic transformer 2 drives drive link 3 to move upward.
What Fig. 3 showed this embodiment adds electrical waveform.Voltage a and voltage b is respectively the first stacked piezoelectric pottery 11 and the second stacked piezoelectric pottery 12 making alives.
Compared with prior art, as U.S. PICO glue dispensing valve, this valve piezoelectric ceramics used is an en-block construction, inside is divided into two parts, be responsible for unlatching or the closedown of valve respectively, and the distortion of arbitrary portion in two parts of this valve piezoelectric ceramics inside used, all can be subject to the restriction of adjacent part boundary condition, directly limit and have impact on the deformation quantity of piezoelectric ceramics.In addition, this kind of ceramic structure of PICO manufacturing cost is high, and has arbitrary portion to damage in two parts of pottery inside, and ceramic integral all needs to change, and maintenance cost is also high.In the utility model, first stacked piezoelectric pottery 11 and the second stacked piezoelectric pottery 12 are identical two pieces of stacked piezoelectric potteries, be responsible for unlatching or the closedown of valve respectively, between first stacked piezoelectric pottery 11 and the second stacked piezoelectric pottery 12, structure does not interfere with each other, work alone, the distortion of any stacked piezoelectric pottery can not be subject to the impact of other stacked piezoelectric pottery, therefore control conveniently, and deflection is large.The length of reduction stacked piezoelectric pottery is in the future made to become a kind of possibility.Meanwhile, reducing of piezoelectric ceramics length, effectively can reduce the manufacturing cost of piezo jet valve.
Version two:
As shown in Figure 4, piezoelectric actuator is stacked piezoelectric pottery 12 ', and support member 11 ' is oppositely arranged up and down 11 ' for flexible hinge bar, piezoelectric actuator and support member.Same, this piezoelectric actuator is not limited to stacked piezoelectric pottery, can be structure or the assembly of any piezoelectric class formation.In Fig. 4, the position of piezoelectric actuator and support member can be changed mutually.
When this glue dispensing valve works, as shown in Figure 5, lower stacked piezoelectric pottery 12 ' powers up elongation.Now, ultrasonic transformer 2 ' rotates counterclockwise around flexible hinge bar 11 ', and drive drive link 3 ' to move upward now, glue dispensing valve enters opening.
Along with stacked piezoelectric pottery 12 ' power-off is shunk, ultrasonic transformer 2 ' rotates clockwise around flexible hinge bar 11 ', drives drive link 3 ' to move downward.Do action like this, realizes the some glue of glue dispensing valve.
The structure that this structure adopts one piece of stacked piezoelectric pottery 12 ' and flexible hinge bar 11 ' to coordinate, can reduce the cost of glue dispensing valve further.
Preferably, preloading spring 6 ' is provided with above or below ultrasonic transformer 2 '.
As shown in Figure 4, preloading spring 6 ' props up ultrasonic transformer 2 ', for ultrasonic transformer 2 ' provides pretightning force.During work, when stacked piezoelectric pottery 12 ' power-off is instantly shunk, spring 6 ' is assisted to promote ultrasonic transformer 2 ' and is rotated clockwise around flexible hinge bar 11 ', drives drive link 3 ' to move downward.
In addition, in the utility model, valve body 1,1 ' preferably with inner chamber, piezoelectric actuator 11,12,12 ', support member 13,11 ', ultrasonic transformer 2,2 ' is all arranged in this inner chamber.
Adopt inner-cavity structure make piezoelectric actuator 11,12,12 ', support member 13,11 ', ultrasonic transformer 2,2 ' etc. is placed in valve inner, not only effectively avoid the damage of these elements, provide cost savings simultaneously, be easy to the miniaturization of glue dispensing valve.
In addition, top nut 31,31 ' and lower nut 32,32 ' is also preferably provided with in the junction of drive link 3,3 ' and ultrasonic transformer 2,2 '.Top nut 31,31 ' and lower nut 32,32 ' make drive link 3,3 ' and ultrasonic transformer 2,2 ' closely be fixed together, and prevent the relative sliding between the two, and convenient disassembly, cost is lower.
Further, fluid glue dispensing valve can also comprise spout part, spout part comprises the injection valve seat 5,5 ' with spray orifice 53,53 ', the inside of described injection valve seat 5,5 ' is provided with striker 54,54 ' and striker external member 52,52 ' in the top of described spray orifice 53,53 ', the upper end of striker 54,54 ' contacts with drive link 3,3 ', striker 54,54 ' is provided with flexible member 55,55 '.
During work, when drive link 3,3 ' moves up or down, can striker 54,54 ' be driven to produce corresponding sports simultaneously.
when adopting structure for the moment:
When drive link 3 is without corresponding moving up and down, striker 54 and spray orifice 53 have certain distance, and namely glue dispensing valve is in opening.Striker 54 can be driven to move downward when drive link 3 moves downward, the liquid in valve support chamber 51 extrudes by striker 54, ejects from spray orifice 53.Now, glue dispensing valve enters closed condition.
Subsequently, when ultrasonic transformer 2 drives drive link 3 to move upward, striker 54 moves upward by the effect of flexible member 55 restoring force, and a small amount of air return, in valve support chamber 51, that is, has occurred a small size air air cavity between striker 54 and spray orifice 53.Fluid to be sprayed will fill up above-mentioned air chamber, prepare next action.Now, glue dispensing valve enters opening.
After fluid to be sprayed fills up this air chamber, repeat above two actions, so circulate.
when adopting structure two:
During original state, striker 54 ' is withstood in the below of drive link 3 ', and flexible member 55 ' is by the pressure coming from top, and striker 54 ' and spray orifice 53 ' are close to, and namely glue dispensing valve is in closed condition.
When glue dispensing valve works, when ultrasonic transformer 2 ' drives drive link 3 ' to move upward, striker 54 ' moves upward by the effect of flexible member 55 ' restoring force, and a small amount of air return, in valve support chamber 51 ', has occurred a small size air air cavity between striker 54 ' and spray orifice 53 '.Fluid to be sprayed will be full of this air chamber, prepare next action.Now, glue dispensing valve enters opening.
After fluid to be sprayed fills up this air chamber, drive link 3 ' moves downward, and promote striker 54 ' simultaneously and move downward, the liquid in valve support chamber 51 ' extrudes by striker 54 ', ejects from spray orifice 53 '.Now, glue dispensing valve enters closed condition.
Glue dispensing valve repeats above two actions, so circulates.
In addition spout part can also be provided with the servicing units such as sealing ring.This structure is a kind of forced movement of typical mechanical system, wherein utilizes flexible member 55,55 ' to provide screen resilience, and promote striker 54,54 ' and upwards realize its return motion, effect is better.
Preferably, flexible member 55,55 ' is spring leaf.Compared with prior art, the spring leaf in the utility model non-used resonance effect, but utilize spring leaf mechanical rebounding force, assist striker raised, reliability is higher.
Preferred further, the upper end of striker 54,54 ' can also be provided with striker nut 57,57 '; Striker external member 52,52 ' can be arranged in described injection valve seat 5,5 ' by spacing jump ring 56,56 '; Spout part can be connected to the bottom of described valve body 1,1 ' by bolt or draw-in groove.
Corresponding with above-mentioned, the utility model provides a kind of point glue equipment, comprises the fluid glue dispensing valve of above-mentioned Piezoelectric Driving.
Compared with prior art, during utility model works, when powering on to piezoelectric actuator, piezoelectric actuator can produce telescopic shape change, is transferred to ultrasonic transformer, makes ultrasonic transformer around support member counterclockwise or rotate clockwise, promote drive link to move up or down, achieve the amplification of deformation.The form that the utility model adopts piezoelectric actuator to coordinate with ultrasonic transformer, instead of flexibility of the prior art and amplify wall, avoiding longer brachium makes result stability and response speed reduce, simultaneously because piezoelectric actuator distortion is independent, so can realize larger deflection.
The above is preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. a fluid glue dispensing valve for Piezoelectric Driving, is characterized in that, comprises valve body, piezoelectric actuator, support member, the ultrasonic transformer of horizontally set and the drive link of vertical setting, wherein:
One end of described piezoelectric actuator and support member is all arranged on described valve body, and the other end is all connected with one end of described ultrasonic transformer, and the other end of described ultrasonic transformer connects described drive link.
2. the fluid glue dispensing valve of Piezoelectric Driving according to claim 1, is characterized in that, described piezoelectric actuator comprises up and down spaced first stacked piezoelectric pottery and the second stacked piezoelectric pottery successively; Described support member is bolt, and described bolt is between described first stacked piezoelectric pottery and the second stacked piezoelectric pottery.
3. the fluid glue dispensing valve of Piezoelectric Driving according to claim 1, is characterized in that, described piezoelectric actuator is stacked piezoelectric pottery, and described support member is flexible hinge bar, and described piezoelectric actuator and support member are oppositely arranged up and down.
4. the fluid glue dispensing valve of Piezoelectric Driving according to claim 3, is characterized in that, is provided with preloading spring above or below described ultrasonic transformer.
5. the fluid glue dispensing valve of Piezoelectric Driving according to claim 1, is characterized in that, described valve body is with inner chamber, and described piezoelectric actuator, support member, ultrasonic transformer are all arranged in described inner chamber.
6. the fluid glue dispensing valve of Piezoelectric Driving according to claim 1, is characterized in that, described drive link is provided with top nut and lower nut in the junction of described drive link and ultrasonic transformer.
7. the fluid glue dispensing valve of the Piezoelectric Driving according to the arbitrary claim of claim 1-6, it is characterized in that, described fluid glue dispensing valve also comprises spout part, described spout part comprises the injection valve seat with spray orifice, the inside of described injection valve seat is provided with striker and striker external member above described spray orifice, the upper end of described striker contacts with described drive link, described striker is equipped with and has elastic component.
8. the fluid glue dispensing valve of Piezoelectric Driving according to claim 7, is characterized in that, described flexible member is spring leaf.
9. the fluid glue dispensing valve of Piezoelectric Driving according to claim 7, is characterized in that, the upper end of described striker is also provided with striker nut;
Described striker external member is arranged in described injection valve seat by spacing jump ring;
Described spout part is connected to the bottom of described valve body by bolt or draw-in groove.
10. a point glue equipment, is characterized in that, comprises the fluid glue dispensing valve of arbitrary described Piezoelectric Driving in claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520051173.6U CN204523422U (en) | 2015-01-23 | 2015-01-23 | The fluid glue dispensing valve of Piezoelectric Driving and point glue equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520051173.6U CN204523422U (en) | 2015-01-23 | 2015-01-23 | The fluid glue dispensing valve of Piezoelectric Driving and point glue equipment |
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| CN204523422U true CN204523422U (en) | 2015-08-05 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105312190A (en) * | 2015-11-26 | 2016-02-10 | 河北领冠仪器仪表有限公司 | Fluid dispensing jet valve component |
| CN105381901A (en) * | 2015-12-07 | 2016-03-09 | 常州高凯精密机械有限公司 | Separation type piezoelectric jet pump provided with valve |
| CN105855139A (en) * | 2015-01-23 | 2016-08-17 | 北京派和科技股份有限公司 | Piezoelectric drive fluid dispensing valve and dispensing equipment |
| CN107303722A (en) * | 2016-04-22 | 2017-10-31 | 北京派和智能装备技术有限公司 | Actuating module, piezojet printheads and printing equipment |
| CN107303753A (en) * | 2016-04-22 | 2017-10-31 | 北京派和智能装备技术有限公司 | Piezojet printheads and the printing equipment with the printhead |
| CN110434014A (en) * | 2019-07-26 | 2019-11-12 | 维库（厦门）信息技术有限公司 | A kind of list Piezoelectric Ceramic hot melt adhesive glue dispensing valve |
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2015
- 2015-01-23 CN CN201520051173.6U patent/CN204523422U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105855139A (en) * | 2015-01-23 | 2016-08-17 | 北京派和科技股份有限公司 | Piezoelectric drive fluid dispensing valve and dispensing equipment |
| CN105855139B (en) * | 2015-01-23 | 2018-11-23 | 北京派和科技股份有限公司 | The fluid glue dispensing valve and point glue equipment of Piezoelectric Driving |
| CN105312190A (en) * | 2015-11-26 | 2016-02-10 | 河北领冠仪器仪表有限公司 | Fluid dispensing jet valve component |
| CN105381901A (en) * | 2015-12-07 | 2016-03-09 | 常州高凯精密机械有限公司 | Separation type piezoelectric jet pump provided with valve |
| CN107303722A (en) * | 2016-04-22 | 2017-10-31 | 北京派和智能装备技术有限公司 | Actuating module, piezojet printheads and printing equipment |
| CN107303753A (en) * | 2016-04-22 | 2017-10-31 | 北京派和智能装备技术有限公司 | Piezojet printheads and the printing equipment with the printhead |
| CN107303722B (en) * | 2016-04-22 | 2020-03-17 | 北京派和智能装备技术有限公司 | Actuator module, piezoelectric jet printing head and printing device |
| CN107303753B (en) * | 2016-04-22 | 2020-11-24 | 北京派和智能装备技术有限公司 | Piezoelectric jet printing head and printing device with the same |
| CN110434014A (en) * | 2019-07-26 | 2019-11-12 | 维库（厦门）信息技术有限公司 | A kind of list Piezoelectric Ceramic hot melt adhesive glue dispensing valve |
| CN110434014B (en) * | 2019-07-26 | 2020-10-20 | 维库（厦门）信息技术有限公司 | Single piezoelectric ceramic driven hot melt adhesive dispensing valve |
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