CN105327835A - Piezoelectric series plunger jet dispensing device - Google Patents
Piezoelectric series plunger jet dispensing device Download PDFInfo
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- CN105327835A CN105327835A CN201510891122.9A CN201510891122A CN105327835A CN 105327835 A CN105327835 A CN 105327835A CN 201510891122 A CN201510891122 A CN 201510891122A CN 105327835 A CN105327835 A CN 105327835A
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- plunger
- piezoelectric stack
- glue
- spring
- piezoelectricity
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Abstract
The invention relates to dispensing devices, particularly to a piezoelectric series plunger jet dispensing device which comprises a glue supply system and a jet system, and further comprises a driver used for sending a driving signal, wherein the glue supply system comprises a first spring, a first cavity, a first pre-tightening nut, a first piezoelectric stack and a first plunger; and the jet system comprises a second spring, a second cavity, a second pre-tightening nut, a second piezoelectric stack, a second plunger, a glue liquor seat and a nozzle. According to the piezoelectric series plunger jet dispensing device, the second plunger only has impact force to the glue liquor and does not impact on the nozzle to cause the particle glue liquor clamped between the second plunger and the nozzle to burst due to press, and the situation that the nozzle is severely damaged due to impact is avoided, so that the service life of the piezoelectric series plunger jet dispensing device is greatly prolonged, the maintenance cost is reduced, the digitized adjustment of the piezoelectric series plunger jet dispensing device is achieved, and the working efficiency is greatly improved.
Description
Technical field
The present invention relates to point glue equipment, particularly relate to a kind of piezoelectricity tandem plunger ejecting adhesive dispenser.
Background technology
Point glue equipment is a kind of process equipment being widely used in production field, be coated with and sealing to general industrial welding, note from semiconductor packaging industry, IC industry, SMT/PCB assembly industry, realize the Process of Applying Glue to the point, line, surface of colloid by this device.In microelectronics Packaging industry, for adapting to the scrambling of workpiece, pursue high-quality, high speed, high-precision fluid point glue equipment, dispensing technology develops towards noncontact jetting point glue gradually.
At present, what noncontact jetting point glue equipment adopted is that glue sprays by the mode of directly clashing into, namely striker directly clashes into nozzle and is sprayed by the glue between striker and nozzle under the driving of external force, the direct shock of striker and nozzle can cause nozzle heavy wear, improve the maintenance cost of noncontact jetting point glue equipment greatly, and for band particle glue, as solder(ing) paste, elargol etc., the striker of high-speed motion is when touching valve seat, sandwich between particle will by conquassation, thus cause liquid property to change, these defects all limit widely using of noncontact jetting point glue equipment.
Summary of the invention
The object of the invention is to overcome the defect that prior art exists, provide a kind of digitlization, do not need to clash into the piezoelectricity tandem plunger ejecting adhesive dispenser of shower nozzle.
The technical scheme realizing the object of the invention is: a kind of piezoelectricity tandem plunger ejecting adhesive dispenser, comprise for colloid system and spraying system, piezoelectricity tandem plunger ejecting adhesive dispenser also comprises the driver for sending drive singal, the first spring is comprised for colloid system, first cavity, first pre-load nut, first piezoelectric stack and the first plunger, first pre-load nut is arranged on the upper end of the first cavity, first piezoelectric stack is positioned at the first cavity, first piezoelectric stack is between the first pre-load nut and the first plunger, first spring is arranged on the lower surface of the first plunger, spraying system comprises the second spring, second cavity, second pre-load nut, second piezoelectric stack, second plunger, glue seat and shower nozzle, second pre-load nut is arranged on the upper end of the second cavity, second piezoelectric stack is positioned at the second cavity, second piezoelectric stack is between the second pre-load nut and the second plunger, second spring is arranged on the lower surface of the second plunger, be fixed on glue seat for colloid system, shower nozzle is arranged on glue seat, driver is connected with the second piezoelectric stack with the first piezoelectric stack respectively, driver controls elongation and the shortening of the first piezoelectric stack and the second piezoelectric stack respectively, thus drive the first plunger and the second plunger reciprocates respectively.
As prioritization scheme of the present invention, glue seat comprises glue inlet tube road, liquid storage cylinder, supplies plastic pipe and glue spraying pipeline, the serrated end in glue inlet tube road is connected with liquid storage cylinder, expansion end for plastic pipe is connected with liquid storage cylinder, serrated end for plastic pipe is connected with glue spraying pipeline, and the top of the first plunger is positioned at the below of the first piezoelectric stack, and the bottom of the first plunger is placed in liquid storage cylinder, the top of the second plunger is positioned at the below of the second piezoelectric stack, and the bottom of the second plunger is placed in glue spraying pipeline.
As prioritization scheme of the present invention, shower nozzle is provided with spray orifice, spray orifice is connected with glue spraying pipeline.
As prioritization scheme of the present invention, driver provides high level and low level respectively to the first piezoelectric stack and the second piezoelectric stack, the glue amount that driver controls supply by regulating the size of high level and sprays, the speed of driver by regulating the time being changed to high level by low level to control gelatin jet.
As prioritization scheme of the present invention, the first spring and the second bullet are butterfly spring.
As prioritization scheme of the present invention, the first piezoelectric stack is arranged on the first pre-load nut by the first set bolt.
As prioritization scheme of the present invention, the second piezoelectric stack is arranged on the second pre-load nut by the second set bolt.
The present invention has positive effect: 1) the second plunger of the present invention only has impulsive force to glue, shower nozzle can not be clashed into and cause being clipped in particle glue between shower nozzle by conquassation, also shower nozzle will be caused badly damaged owing to clashing into shower nozzle simultaneously, extend the service life of piezoelectricity tandem plunger ejecting adhesive dispenser greatly, reduce maintenance cost;
2) driver of the present invention by regulate the size of high level control each time the glue amount that supplies and spray;
3) the present invention is by the elongation time of adjustment second piezoelectric stack, namely the speed that the time controling glue that control and drive system becomes high level from low level sprays each time, the digitlization achieving piezoelectricity tandem plunger ejecting adhesive dispenser regulates, and substantially increases operating efficiency.
Accompanying drawing explanation
In order to make content of the present invention more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation, wherein:
Fig. 1 is structure chart of the present invention;
Fig. 2 is the structure chart of glue seat;
Fig. 3 is the drive singal schematic diagram that driver sends.
Wherein, 100, for colloid system, 200, spraying system, 300, driver, the 11, first spring, the 12, first cavity, 13, the first pre-load nut, the 14, first piezoelectric stack, the 15, first plunger, 16, the first set bolt, 21, the second spring, the 22, second cavity, the 23, second pre-load nut, 24, the second piezoelectric stack, 25, the second plunger, 26, glue seat, 27, shower nozzle, 28, the second set bolt, 261, glue inlet tube road, 262, liquid storage cylinder, 263, for plastic pipe, 264, glue spraying pipeline, 271, spray orifice.
Detailed description of the invention
As shown in Figure 1, the invention discloses a kind of piezoelectricity tandem plunger ejecting adhesive dispenser, comprise for colloid system 100 and spraying system 200, piezoelectricity tandem plunger ejecting adhesive dispenser also comprises the driver 300 for sending drive singal, the first spring 11 is comprised for colloid system 100, first cavity 12, first pre-load nut 13, first piezoelectric stack 14 and the first plunger 15, first pre-load nut 13 is arranged on the upper end of the first cavity 12, first piezoelectric stack 14 is positioned at the first cavity 12, first piezoelectric stack 14 is between the first pre-load nut 13 and the first plunger 15, first spring 11 is arranged on the lower surface of the first plunger 15, spraying system 200 comprises the second spring 21, second cavity 22, second pre-load nut 23, second piezoelectric stack 24, second plunger 25, glue seat 26 and shower nozzle 27, second pre-load nut 23 is arranged on the upper end of the second cavity 22, second piezoelectric stack 24 is positioned at the second cavity 22, second piezoelectric stack 24 is between the second pre-load nut 23 and the second plunger 25, second spring 21 is arranged on the lower surface of the second plunger 25, be fixed on glue seat 26 for colloid system 100, shower nozzle 27 is arranged on glue seat 26, driver 300 is connected with the second piezoelectric stack 24 with the first piezoelectric stack 14 respectively, driver 300 controls elongation and the shortening of the first piezoelectric stack 14 and the second piezoelectric stack 24 respectively, thus drive the first plunger 15 and the second plunger 25 to move back and forth respectively.Wherein, first pre-load nut 13 is threaded connection the upper end being arranged on the first cavity 12, first pre-load nut 13 by the first piezoelectric stack 14 tightly be pressed on the first plunger 15, second pre-load nut 23 is threaded connection the upper end being arranged on the second cavity 22, the second pre-load nut 23 by the second piezoelectric stack 24 tightly be pressed on the second plunger 25; First spring 11 provides restoring force for the first plunger 15, and the second spring 21 provides restoring force for the second plunger 25.
As shown in Figure 2, glue seat 26 comprises glue inlet tube road 261, liquid storage cylinder 262, supplies plastic pipe 263 and glue spraying pipeline 264, the serrated end in glue inlet tube road 261 is connected with liquid storage cylinder 262, expansion end for plastic pipe 263 is connected with liquid storage cylinder 262, serrated end for plastic pipe 263 is connected with glue spraying pipeline 264, the top of the first plunger 15 is positioned at the below of the first piezoelectric stack 14, the bottom of the first plunger 15 is placed in liquid storage cylinder 262, the top of the second plunger 25 is positioned at the below of the second piezoelectric stack 24, and the bottom of the second plunger 25 is placed in glue spraying pipeline 264.Wherein, what glue inlet tube road 261 and confession plastic pipe 263 adopted is contraction/distension pipeline configuration, and when liquid storage cylinder 262 reduces, the glue in liquid storage cylinder 262 can be discharged from for plastic pipe 263 easily, when liquid storage cylinder 262 is expanded, glue can enter from glue inlet tube road 261 easily.
Shower nozzle 27 is provided with spray orifice 271, spray orifice 271 is connected with glue spraying pipeline 264.
Wherein, the first spring 11 and the second spring 21 are butterfly spring.First piezoelectric stack 14 is arranged on the first pre-load nut 13 by the first set bolt 16.Second piezoelectric stack 24 is arranged on the second pre-load nut 23 by the second set bolt 28.
Be illustrated in figure 3 the drive singal schematic diagram that driver sends, driver 300 provides high level and low level respectively to the first piezoelectric stack 14 and the second piezoelectric stack 24, the glue amount that driver 300 controls supply by regulating the size of high level and sprays, the speed of driver 300 by regulating the time being changed to high level by low level to control gelatin jet.
During work, first driver 300 applies high level to the first piezoelectric stack 14, first piezoelectric stack 14 extends and promotes the first plunger 15 and travels forward, glue in liquid storage cylinder 262 is squeezed in glue spraying pipeline 264, now driver 300 applies high level to the second piezoelectric stack 24 again, second plunger 25 impacts forward under the promotion of the second piezoelectric stack 24, is sprayed by the glue be clipped between the second plunger 25 and shower nozzle 27.Then, driver 300 applies low level to the first piezoelectric stack 14, first piezoelectric stack 14 shortens, and the first plunger 15 back moves under the effect of the first spring 11, because the return motion of the first plunger 15 will suck glue liquid storage cylinder 262 from glue inlet tube road 261.Finally, driver 300 applies low level to the second piezoelectric stack 24, and the second plunger 25 is returned to original state, ready for spraying next time.
In the whole course of work, because the maximum displacement of the second piezoelectric stack 24 is less than 100 microns, extending the time used only needs tens of to microsecond more than 100, so the second plunger 25 pairs of glues only have impulsive force, and shower nozzle 27 can not be clashed into by the band pimpled rubber hydraulic pressure be clipped between the second plunger 25 and shower nozzle 27 and burst, more can not cause shower nozzle 27 heavy wear because of shock.By adjusting driver 300 high level size can control each time the glue amount that supplies and spray, by regulating the elongation time of the second piezoelectric stack 24, namely the signal that driver 300 sends is changed to the time △ t of high level by low level, the speed that controlled glue liquid ejects each time, thus the digitlization realizing piezoelectricity tandem plunger ejecting adhesive dispenser regulates.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a piezoelectricity tandem plunger ejecting adhesive dispenser, comprise for colloid system (100) and spraying system (200), it is characterized in that: described piezoelectricity tandem plunger ejecting adhesive dispenser also comprises the driver (300) for sending drive singal, described comprises the first spring (11) for colloid system (100), first cavity (12), first pre-load nut (13), first piezoelectric stack (14) and the first plunger (15), described the first pre-load nut (13) is arranged on the upper end of the first cavity (12), described the first piezoelectric stack (14) is positioned at the first cavity (12), described the first piezoelectric stack (14) is positioned between the first pre-load nut (13) and the first plunger (15), described the first spring (11) is arranged on the lower surface of the first plunger (15), described spraying system (200) comprises the second spring (21), second cavity (22), second pre-load nut (23), second piezoelectric stack (24), second plunger (25), glue seat (26) and shower nozzle (27), described the second pre-load nut (23) is arranged on the upper end of the second cavity (22), described the second piezoelectric stack (24) is positioned at the second cavity (22), described the second piezoelectric stack (24) is positioned between the second pre-load nut (23) and the second plunger (25), described the second spring (21) is arranged on the lower surface of the second plunger (25), described is fixed on glue seat (26) for colloid system (100), described shower nozzle (27) is arranged on glue seat (26), described driver (300) is connected with the second piezoelectric stack (24) with the first piezoelectric stack (14) respectively, described driver (300) controls elongation and the shortening of the first piezoelectric stack (14) and the second piezoelectric stack (24) respectively, thus drive the first plunger (15) and the second plunger (25) to move back and forth respectively.
2. a kind of piezoelectricity tandem plunger ejecting adhesive dispenser according to claim 1, it is characterized in that: described glue seat (26) comprises glue inlet tube road (261), liquid storage cylinder (262), for plastic pipe (263) and glue spraying pipeline (264), the serrated end in glue inlet tube road (261) is connected with liquid storage cylinder (262), expansion end for plastic pipe (263) is connected with liquid storage cylinder (262), serrated end for plastic pipe (263) is connected with glue spraying pipeline (264), the top of the first plunger (15) is positioned at the below of the first piezoelectric stack (14), the bottom of the first plunger (15) is placed in liquid storage cylinder (262), the top of the second plunger (25) is positioned at the below of the second piezoelectric stack (24), the bottom of the second plunger (25) is placed in glue spraying pipeline (264).
3. a kind of piezoelectricity tandem plunger ejecting adhesive dispenser according to claim 2, it is characterized in that: described shower nozzle (27) is provided with spray orifice (271), described spray orifice (271) is connected with glue spraying pipeline (264).
4. a kind of piezoelectricity tandem plunger ejecting adhesive dispenser according to claim 1, it is characterized in that: described driver (300) provides high level and low level respectively to the first piezoelectric stack (14) and the second piezoelectric stack (24), the glue amount that described driver (300) controls supply by regulating the size of high level and sprays, the speed of described driver (300) by regulating the time being changed to high level by low level to control gelatin jet.
5. a kind of piezoelectricity tandem plunger ejecting adhesive dispenser according to claim 1, is characterized in that: described the first spring (11) and the second spring (21) are butterfly spring.
6. a kind of piezoelectricity tandem plunger ejecting adhesive dispenser according to claim 1, is characterized in that: described the first piezoelectric stack (14) is arranged on the first pre-load nut (13) by the first set bolt (16).
7. a kind of piezoelectricity tandem plunger ejecting adhesive dispenser according to claim 1, is characterized in that: described the second piezoelectric stack (24) is arranged on the second pre-load nut (23) by the second set bolt (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510891122.9A CN105327835B (en) | 2015-12-07 | 2015-12-07 | A kind of piezoelectricity tandem plunger ejecting adhesive dispenser |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510891122.9A CN105327835B (en) | 2015-12-07 | 2015-12-07 | A kind of piezoelectricity tandem plunger ejecting adhesive dispenser |
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| CN105327835A true CN105327835A (en) | 2016-02-17 |
| CN105327835B CN105327835B (en) | 2017-12-01 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106000778A (en) * | 2016-07-30 | 2016-10-12 | 南京拓益森精密电子有限公司 | Self-limiting impact type jetting glue-dispensing device |
| CN110052357A (en) * | 2019-05-15 | 2019-07-26 | 哈尔滨工业大学 | A kind of adjustable piezoelectric micromotor spraying mechanism of valve applied to high viscosity fluid injection |
| CN110191763A (en) * | 2016-12-05 | 2019-08-30 | 布勒特耶自动控制设备有限责任公司 | Coating unit |
| CN111957520A (en) * | 2020-08-31 | 2020-11-20 | 东莞理工学院 | Pulse pressure supply bubble removal piezoinjection device and injection method |
| CN112317221A (en) * | 2017-06-30 | 2021-02-05 | 江苏高凯精密流体技术股份有限公司 | Split type liquid drop dispensing device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994018449A1 (en) * | 1993-02-01 | 1994-08-18 | Sampower Oy | Method and apparatus for controlling the injection of fuel |
| CN2864654Y (en) * | 2005-08-26 | 2007-01-31 | 宋国兴 | Gravity flow type oil spout mouth detector |
| CN101356037A (en) * | 2005-11-14 | 2009-01-28 | 麦德塔自动化股份有限公司 | A jetting apparatus and method of improving the performance of a jetting apparatus by using a flow sensor for measuring the air flow |
| CN102962170A (en) * | 2012-11-16 | 2013-03-13 | 上海交通大学 | High-temperature hot-melting micro-jet dispensing device with piezoelectric drive diaphragm |
| CN103433178A (en) * | 2013-09-04 | 2013-12-11 | 吉林大学 | Piezoelectric-hydraulic control type dispensing device |
| CN104684656A (en) * | 2012-09-27 | 2015-06-03 | 微密斯点胶技术有限公司 | Dosing system, dosing method and production method |
| CN204564464U (en) * | 2015-04-23 | 2015-08-19 | 吉林大学 | A kind of self-interacting type electricity liquid coupling ejecting adhesive dispenser |
| CN205183078U (en) * | 2015-12-07 | 2016-04-27 | 常州高凯精密机械有限公司 | Piezoelectricity serial -type plunger sprays adhesive deposite device |
-
2015
- 2015-12-07 CN CN201510891122.9A patent/CN105327835B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994018449A1 (en) * | 1993-02-01 | 1994-08-18 | Sampower Oy | Method and apparatus for controlling the injection of fuel |
| CN2864654Y (en) * | 2005-08-26 | 2007-01-31 | 宋国兴 | Gravity flow type oil spout mouth detector |
| CN101356037A (en) * | 2005-11-14 | 2009-01-28 | 麦德塔自动化股份有限公司 | A jetting apparatus and method of improving the performance of a jetting apparatus by using a flow sensor for measuring the air flow |
| CN104684656A (en) * | 2012-09-27 | 2015-06-03 | 微密斯点胶技术有限公司 | Dosing system, dosing method and production method |
| CN102962170A (en) * | 2012-11-16 | 2013-03-13 | 上海交通大学 | High-temperature hot-melting micro-jet dispensing device with piezoelectric drive diaphragm |
| CN103433178A (en) * | 2013-09-04 | 2013-12-11 | 吉林大学 | Piezoelectric-hydraulic control type dispensing device |
| CN204564464U (en) * | 2015-04-23 | 2015-08-19 | 吉林大学 | A kind of self-interacting type electricity liquid coupling ejecting adhesive dispenser |
| CN205183078U (en) * | 2015-12-07 | 2016-04-27 | 常州高凯精密机械有限公司 | Piezoelectricity serial -type plunger sprays adhesive deposite device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106000778A (en) * | 2016-07-30 | 2016-10-12 | 南京拓益森精密电子有限公司 | Self-limiting impact type jetting glue-dispensing device |
| CN110191763A (en) * | 2016-12-05 | 2019-08-30 | 布勒特耶自动控制设备有限责任公司 | Coating unit |
| CN110191763B (en) * | 2016-12-05 | 2022-04-19 | 布勒特耶自动控制设备有限责任公司 | Coating unit |
| CN112317221A (en) * | 2017-06-30 | 2021-02-05 | 江苏高凯精密流体技术股份有限公司 | Split type liquid drop dispensing device |
| CN110052357A (en) * | 2019-05-15 | 2019-07-26 | 哈尔滨工业大学 | A kind of adjustable piezoelectric micromotor spraying mechanism of valve applied to high viscosity fluid injection |
| CN110052357B (en) * | 2019-05-15 | 2021-06-15 | 哈尔滨工业大学 | Valve-adjustable piezoelectric micro-spraying mechanism applied to high-viscosity fluid spraying |
| CN111957520A (en) * | 2020-08-31 | 2020-11-20 | 东莞理工学院 | Pulse pressure supply bubble removal piezoinjection device and injection method |
Also Published As
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| CN105327835B (en) | 2017-12-01 |
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Address after: 213164 South Building 1201, Huiyan Building, Science and Education City, Wujin District, Changzhou City, Jiangsu Province Patentee after: Changzhou Gaokai Precision Technology Co., Ltd. Address before: 213164 South Building 1201, Huiyan Building, Science and Education City, Wujin District, Changzhou City, Jiangsu Province Patentee before: Changzhou Gaokai Precision Machinery Co., Ltd. |
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Address after: 213164 Jiangsu city of Changzhou Province Science City Wujin District Hui South 1201 floor. Patentee after: Jiangsu GaoKai precision fluid technology Co., Ltd Address before: 213164 Jiangsu city of Changzhou Province Science City Wujin District Hui South 1201 floor. Patentee before: Changzhou Gaokai Precision Technology Co.,Ltd. |