CN111515082A - Ultrasonic vibration stirring type piezoelectric injection valve - Google Patents
Ultrasonic vibration stirring type piezoelectric injection valve Download PDFInfo
- Publication number
- CN111515082A CN111515082A CN202010363710.6A CN202010363710A CN111515082A CN 111515082 A CN111515082 A CN 111515082A CN 202010363710 A CN202010363710 A CN 202010363710A CN 111515082 A CN111515082 A CN 111515082A
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- Prior art keywords
- nozzle
- ultrasonic vibration
- injection valve
- feeding end
- piezoelectric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
Abstract
The invention discloses an ultrasonic vibration stirring type piezoelectric injection valve which comprises a nozzle, wherein the nozzle is fixed through a fixed seat, a firing pin is arranged in the nozzle, the nozzle is connected with a feeding end, and a feeding runner hole is formed in the feeding end; the ultrasonic glue feeding device is characterized in that a transducer for converting electric energy into ultrasonic waves is installed above the feeding end and comprises a transverse main rod and a vertical amplitude transformer, the main rod and the amplitude transformer form a T-shaped structure, reaction force springs are arranged below two ends of the main rod, and the amplitude transformer is inserted into the feeding end and extends into the flow passage hole to be in contact with glue solution. The ultrasonic transducer is arranged at the feeding end and is in contact with the glue solution through the amplitude transformer, the glue solution can be stirred at the nozzle due to the conduction of the ultrasonic in the liquid, the influence on the glue solution caused by contact stirring can be avoided, and meanwhile, the glue solution is uniformly mixed without precipitation and blockage.
Description
Technical Field
The invention relates to the field of dispensing injection valves, in particular to an ultrasonic vibration stirring type piezoelectric injection valve.
Background
The piezoelectric injection dispensing valve is widely applied to the field of electronic packaging, non-contact injection of glue can be realized by adopting piezoelectric injection dispensing, non-contact work can be realized, and meanwhile, the piezoelectric injection dispensing valve is high in efficiency and precision. Although piezo jet dispensing has many advantages, there are still disadvantages in application.
At the current injection dispensing valve, the glue containing solid particles is dispensed, and precipitation can occur in the injection process, the viscosity of fluid can be changed in the injection process, so that the quality of the glue at the injection position is inconsistent, the performance of a product is influenced, particularly, the led fluorescent powder injection and the ink injection are aimed at, the solid particles are precipitated in the injection process, the fluorescent powder particles are precipitated, so that the fluorescent powder injected into the lamp beads is inconsistent, and the lamp beads are poor. Meanwhile, due to the generation of sediment, the injection valve can be blocked and cannot work in the injection process.
Therefore, there is a need for further improvement of the existing spray valve to solve the problem of precipitation and blockage of the glue containing solid particles during the spraying process.
Disclosure of Invention
In order to solve the technical problem, the invention provides an ultrasonic vibration stirring type piezoelectric injection valve, which performs non-contact stirring on glue solution through ultrasonic waves and solves the problems of precipitation and blockage of the glue solution of solid particles in the injection process.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: an ultrasonic vibration stirring type piezoelectric injection valve comprises a nozzle, wherein the nozzle is fixed through a fixed seat, and a firing pin is arranged in the nozzle;
the nozzle is connected with a feeding end, and a feeding runner hole is formed in the feeding end; an energy converter for converting electric energy into ultrasonic waves is installed above the feeding end, the energy converter comprises a transverse main rod and a vertical amplitude-variable rod, the main rod and the amplitude-variable rod form a T-shaped structure, reaction force springs are arranged below two ends of the main rod, and the amplitude-variable rod is inserted into the feeding end and extends into the runner hole to be in contact with glue solution;
the energy converter is sleeved with an adjusting frame, a fine adjustment screw is arranged on the adjusting frame, and the fine adjustment screw penetrates through the top of the adjusting frame, extends to the upper end of the energy converter and abuts against the energy converter.
Preferably, the adjusting bracket is fixed on the feeding end through a fixing screw.
Preferably, the flow passage hole communicates with the nozzle.
Preferably, a lever is arranged above the tail end of the firing pin, the front end of the lever is positioned right above the tail end of the firing pin, and the tail end of the lever is connected to the rotating shaft and rotates along the rotating shaft.
Preferably, the upper part of the tail end of the lever is in contact connection with piezoelectric ceramics, and the piezoelectric ceramics are connected with an electric signal.
Preferably, a sealing ring is further arranged above the nozzle.
Preferably, the outer wall of the firing pin is sleeved with a positioning nut for preventing the firing pin from shaking left and right.
Preferably, the positioning nut is sleeved with a return spring.
Preferably, an adjusting nut for adjusting the positions of the striker and the nozzle is sleeved on the outer side of the fixed seat.
The invention has the beneficial technical effects that: the ultrasonic transducer is arranged at the feeding end and is in contact with the glue solution through the amplitude transformer, the glue solution can be stirred at the nozzle due to the conduction of the ultrasonic in the liquid, the influence on the glue solution caused by contact stirring can be avoided, and meanwhile, the glue solution is uniformly mixed without precipitation and blockage.
Drawings
Fig. 1 is an overall schematic view of an ultrasonic vibration agitation type piezoelectric injection valve of the present invention.
Corresponding reference numerals for the various components in the drawings are as follows:
a nozzle-1, a fixed seat-2, a firing pin-3, a feeding end-4 and a runner hole-5;
a transducer-6, a main rod-61, a variable amplitude rod-62, a counterforce spring 63;
an adjusting frame-7, a fine adjustment screw-8, a fixing screw-9, a lever-10, a rotating shaft-11, piezoelectric ceramics-12, a sealing ring-13, a positioning nut-14, a return spring-15, an adjusting nut-16, a salient point-17, a feeding hole-18, a check valve-19, a shell 20, a fixing base plate 21 and a screw 22.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1, the ultrasonic vibration stirring type piezoelectric injection valve includes a nozzle 1, the nozzle 1 is fixed by a fixing seat 2, a firing pin 3 is disposed in the nozzle, a lever 10 is disposed above a tail end of the firing pin 3, a front end of the lever 10 is located right above the tail end of the firing pin 3, and a rear end of the lever 10 is connected to a rotating shaft 11 and can rotate along the rotating shaft 11.
The upper part of the rear end of the lever 10 is connected with a piezoelectric ceramic 12 in a contact manner, the piezoelectric ceramic 12 is connected with an electric signal, when the piezoelectric ceramic 12 is electrified through the electric signal, the piezoelectric ceramic 12 can extend and then impact on the lever 10 (the piezoelectric ceramic can extend when being electrified is the prior art in the field, and therefore the principle of the piezoelectric ceramic is not described in detail), a contact point of the lever 10 and the piezoelectric magnetic valve 12 is a convex point 17, the piezoelectric ceramic 12 impacts on the convex point 17 to give an impact force to the lever 10, the lever 10 rotates along the rotating shaft 11 to drive the front end of the lever to vertically impact the tail end of the firing pin 3, and when the firing pin 3 impacts downwards, the glue liquid is.
Specifically, a sealing ring 13 is further arranged above the nozzle 1 and used for sealing a contact position of the nozzle and the firing pin 3. The outer wall of the firing pin 1 is sleeved with a positioning nut 14 for preventing the firing pin 3 from shaking left and right, and the positioning nut is used for preventing the firing pin 3 from shaking when being impacted. The positioning nut 14 is sleeved with a return spring 15, the positioning nut 14 is narrow at the upper part and wide at the lower part, and the return spring 15 is sleeved on the narrow end at the upper part of the positioning nut 14. In addition, the end surface of the return spring 3 is just in contact with the front end of the lever 10, and is used for limiting the lever 10 and playing a role in buffering. An adjusting nut 16 for adjusting the positions of the firing pin 3 and the nozzle 1 is sleeved outside the fixed seat 2.
The high-voltage power supply further comprises a shell 20, wherein the shell 20 is provided with a cavity, and the upper half part of the firing pin, the positioning nut, the return spring, the lever, the rotating shaft and the piezoelectric ceramic are all arranged in the cavity of the shell. And a fixed chassis 21 is arranged outside the sealing ring, is fixedly connected with the shell through a screw 22 and is used for matching the whole device into a whole.
The nozzle 2 is connected with the feeding end 4, a feeding runner hole 5 is arranged on the feeding end 4, a feeding port 18 is arranged on the runner hole 5, and a stop valve 19 is arranged on the feeding port 18 and used for controlling the opening and closing of the feeding port 18. The runner hole 5 is communicated with the nozzle 1, and glue solution for dispensing flows into the nozzle from the runner hole 5.
The ultrasonic energy conversion device is characterized in that a transducer 6 for converting electric energy into ultrasonic waves is installed above the feeding end 4, the transducer 6 comprises a transverse main rod 61 and a vertical amplitude transformer 62, the main rod 61 and the amplitude transformer 62 form a T-shaped structure, a reaction force spring 63 is arranged below two ends of the main rod 61, and the reaction force spring 63 plays roles of reverse elasticity and buffering when the transducer 6 moves downwards integrally. The amplitude transformer 62 is inserted into the feeding end and extends into the flow passage hole 5 to be contacted with the glue solution, in the embodiment, the flow passage hole 5 is horizontally arranged, the amplitude transformer 62 and the flow passage hole 5 are in a vertical state, the top end face of the amplitude transformer 62 extends into the flow passage hole 5, when the amplitude transformer 62 sends out ultrasonic waves, the ultrasonic waves are conducted in the glue solution, the glue solution at the nozzle 1 is stirred, non-contact stirring is achieved, pollution and influence on the glue solution are avoided through the non-contact stirring, the problem of poor products caused by precipitation in the spraying process of solid particles such as led fluorescent powder and ink is solved, and a spraying valve is blocked.
The energy converter is characterized in that an adjusting frame 7 is sleeved on the energy converter 6, a fine adjustment screw 8 is arranged on the adjusting frame 7, and the fine adjustment screw 8 penetrates through the top of the adjusting frame 7 to extend to the upper end of the energy converter 6 and is abutted against the energy converter 6. The adjusting bracket 7 is fixed on the feeding end 4 through a fixing screw 9.
The transducer 6 can also adjust the intensity of stirring through the amplitude transformer 62, and the main principle is as follows: the contact area of the amplitude transformer 62 and the glue solution can be changed by adjusting the fine adjustment screw 8, when the fine adjustment screw 8 is rotated downwards, the fine adjustment screw 8 drives the transducer 6 to integrally downwards, and the amplitude transformer 62 continuously extends downwards, so that the contact area of the amplitude transformer 62 and the glue solution is increased, and the stirring amplitude and intensity are increased.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (9)
1. The utility model provides an ultrasonic vibration stirring formula piezoelectricity injection valve, includes the nozzle, the nozzle is fixed through the fixing base, be provided with the firing pin in the nozzle, its characterized in that:
the nozzle is connected with a feeding end, and a feeding runner hole is formed in the feeding end; an energy converter for converting electric energy into ultrasonic waves is installed above the feeding end, the energy converter comprises a transverse main rod and a vertical amplitude-variable rod, the main rod and the amplitude-variable rod form a T-shaped structure, reaction force springs are arranged below two ends of the main rod, and the amplitude-variable rod is inserted into the feeding end and extends into the runner hole to be in contact with glue solution;
the energy converter is sleeved with an adjusting frame, a fine adjustment screw is arranged on the adjusting frame, and the fine adjustment screw penetrates through the top of the adjusting frame, extends to the upper end of the energy converter and abuts against the energy converter.
2. An ultrasonically vibrating agitated piezoelectric injector as claimed in claim 1 in which the adjustment bracket is secured to the feed end by a set screw.
3. An ultrasonically vibrating agitated piezoelectric injector as claimed in claim 1 in which said flow passage orifice communicates with said nozzle.
4. The ultrasonic vibration stirring type piezoelectric injection valve as claimed in claim 1, wherein a lever is arranged above the tail end of the firing pin, the front end of the lever is positioned right above the tail end of the firing pin, and the tail end of the lever is connected to the rotating shaft to rotate along the rotating shaft.
5. The ultrasonic vibration agitation type piezoelectric inj ection valve as claimed in claim 4, wherein a piezoelectric ceramic is contactingly connected to an upper portion of a rear end of said lever, and said piezoelectric ceramic is connected to an electric signal.
6. An ultrasonically vibrating agitated piezoelectric injector as claimed in claim 1 in which a gasket is also provided over the nozzle.
7. The ultrasonic vibration stirring type piezoelectric injection valve as claimed in claim 1, wherein a positioning nut for preventing the striker from shaking left and right is sleeved on an outer wall of the striker.
8. The ultrasonic vibration stirring piezoelectric injection valve as claimed in claim 7, wherein the positioning nut is further sleeved with a return spring.
9. The ultrasonic vibration stirring type piezoelectric injection valve as claimed in claim 1, wherein an adjusting nut for adjusting the positions of the striker and the nozzle is sleeved outside the fixed seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010363710.6A CN111515082A (en) | 2020-04-30 | 2020-04-30 | Ultrasonic vibration stirring type piezoelectric injection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010363710.6A CN111515082A (en) | 2020-04-30 | 2020-04-30 | Ultrasonic vibration stirring type piezoelectric injection valve |
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| Publication Number | Publication Date |
|---|---|
| CN111515082A true CN111515082A (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010363710.6A Pending CN111515082A (en) | 2020-04-30 | 2020-04-30 | Ultrasonic vibration stirring type piezoelectric injection valve |
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| CN (1) | CN111515082A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111974625A (en) * | 2020-08-31 | 2020-11-24 | 东莞理工学院 | Pressure difference bubble stirring piezoelectric jetting device and jetting method |
| CN114472077A (en) * | 2022-01-26 | 2022-05-13 | 东莞市集韵自动化科技有限公司 | Dispensing valve and dispensing device |
Citations (7)
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|---|---|---|---|---|
| CN203061118U (en) * | 2013-01-09 | 2013-07-17 | 深圳市沃特玛电池有限公司 | Ultrasonic stirring device |
| CN103464342A (en) * | 2013-08-30 | 2013-12-25 | 中南大学 | Jetting glue dispensing valve device and jetting glue dispensing method |
| CN207840079U (en) * | 2018-05-17 | 2018-09-11 | 北京铂阳顶荣光伏科技有限公司 | Zinc die casting alloys supersonic grain refinement device |
| EP3335805B1 (en) * | 2016-12-19 | 2019-04-03 | Nordson Corporation | Piezoelectric jetting dispenser |
| CN110548649A (en) * | 2019-09-24 | 2019-12-10 | 常州高凯精密技术股份有限公司 | Device for correcting pretightening force between firing pin and nozzle and piezoelectric injection valve thereof |
| CN209778883U (en) * | 2018-12-04 | 2019-12-13 | 内蒙古元本生物医药科技有限公司 | High-efficient cell crusher |
| CN110984528A (en) * | 2020-01-15 | 2020-04-10 | 宁波暮春自动化科技有限公司 | Multi-functional spraying device that fitment was used |
-
2020
- 2020-04-30 CN CN202010363710.6A patent/CN111515082A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203061118U (en) * | 2013-01-09 | 2013-07-17 | 深圳市沃特玛电池有限公司 | Ultrasonic stirring device |
| CN103464342A (en) * | 2013-08-30 | 2013-12-25 | 中南大学 | Jetting glue dispensing valve device and jetting glue dispensing method |
| EP3335805B1 (en) * | 2016-12-19 | 2019-04-03 | Nordson Corporation | Piezoelectric jetting dispenser |
| CN207840079U (en) * | 2018-05-17 | 2018-09-11 | 北京铂阳顶荣光伏科技有限公司 | Zinc die casting alloys supersonic grain refinement device |
| CN209778883U (en) * | 2018-12-04 | 2019-12-13 | 内蒙古元本生物医药科技有限公司 | High-efficient cell crusher |
| CN110548649A (en) * | 2019-09-24 | 2019-12-10 | 常州高凯精密技术股份有限公司 | Device for correcting pretightening force between firing pin and nozzle and piezoelectric injection valve thereof |
| CN110984528A (en) * | 2020-01-15 | 2020-04-10 | 宁波暮春自动化科技有限公司 | Multi-functional spraying device that fitment was used |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111974625A (en) * | 2020-08-31 | 2020-11-24 | 东莞理工学院 | Pressure difference bubble stirring piezoelectric jetting device and jetting method |
| CN114472077A (en) * | 2022-01-26 | 2022-05-13 | 东莞市集韵自动化科技有限公司 | Dispensing valve and dispensing device |
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Application publication date: 20200811 |