CN105327835B - A kind of piezoelectricity tandem plunger ejecting adhesive dispenser - Google Patents
A kind of piezoelectricity tandem plunger ejecting adhesive dispenser Download PDFInfo
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- CN105327835B CN105327835B CN201510891122.9A CN201510891122A CN105327835B CN 105327835 B CN105327835 B CN 105327835B CN 201510891122 A CN201510891122 A CN 201510891122A CN 105327835 B CN105327835 B CN 105327835B
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- plunger
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- glue
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- adhesive dispenser
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Abstract
The present invention relates to point glue equipment, a kind of more particularly to piezoelectricity tandem plunger ejecting adhesive dispenser, including supplying colloid system and spraying system, piezoelectricity tandem plunger ejecting adhesive dispenser also includes being used for the driver for sending drive signal, include the first spring, the first cavity, the first pre-load nut, the first piezoelectric stack and the first plunger for colloid system, spraying system includes second spring, the second cavity, the second pre-load nut, the second piezoelectric stack, the second plunger, glue seat and shower nozzle.The second plunger of the present invention only has impulsive force to glue, particle glue that shower nozzle causes to be clipped between shower nozzle will not be hit by conquassation, also due to hitting shower nozzle shower nozzle will not be caused badly damaged simultaneously, greatly extend the service life of piezoelectricity tandem plunger ejecting adhesive dispenser, reduce maintenance cost, the digitlization regulation of piezoelectricity tandem plunger ejecting adhesive dispenser is realized, substantially increases operating efficiency.
Description
Technical field
The present invention relates to point glue equipment, more particularly to a kind of piezoelectricity tandem plunger ejecting adhesive dispenser.
Background technology
Point glue equipment is a kind of process equipment for being widely used in production field, from semiconductor packaging industry, is integrated
Circuit industry, SMT/PCB assembly industries to general industry welding, note applies and sealing, by the device realize the point to colloid,
Line, the Process of Applying Glue in face.In microelectronics Packaging industry, to adapt to the scrambling of workpiece, high-quality, high speed, high-precision is pursued
The fluid point glue equipment of degree, dispensing technology gradually develop towards noncontact jetting dispensing.
At present, noncontact jetting point glue equipment sprays glue using the mode directly hit, i.e., striker is outside
Nozzle is directly hit under the driving of power and sprays the glue between striker and nozzle, and the direct shock of striker and nozzle can cause
Nozzle heavy wear, greatly improves the maintenance cost of noncontact jetting point glue equipment, and for band particle glue, such as
Solder(ing) paste, elargol etc., for the striker of high-speed motion when touching valve seat, the particle that sandwiches between will be by conquassation, so as to cause
Liquid property changes, and these defects all limit widely using for noncontact jetting point glue equipment.
The content of the invention
The purpose of the present invention is the defects of overcoming prior art to exist, there is provided a kind of digitlization, need not hit shower nozzle
Piezoelectricity tandem plunger ejecting adhesive dispenser.
Realizing the technical scheme of the object of the invention is：A kind of piezoelectricity tandem plunger ejecting adhesive dispenser, including for glue system
System and spraying system, piezoelectricity tandem plunger ejecting adhesive dispenser also includes being used for the driver for sending drive signal, for glue system
System includes the first spring, the first cavity, the first pre-load nut, the first piezoelectric stack and the first plunger, the installation of the first pre-load nut
In the upper end of the first cavity, the first piezoelectric stack is located in the first cavity, and the first piezoelectric stack is located at the first pre-load nut and
Between one plunger, the first spring is arranged on the lower surface of the first plunger；Spraying system includes second spring, the second cavity, second
Pre-load nut, the second piezoelectric stack, the second plunger, glue seat and shower nozzle, the second pre-load nut are arranged on the upper end of the second cavity,
Second piezoelectric stack is located in the second cavity, and the second piezoelectric stack is between the second pre-load nut and the second plunger, the second bullet
Spring is arranged on the lower surface of the second plunger, is fixed on for colloid system on glue seat, and shower nozzle is arranged on glue seat, driver difference
It is connected with the first piezoelectric stack and the second piezoelectric stack, driver controls the first piezoelectric stack and the second piezoelectric stack respectively
Elongation and shortening, so as to drive the first plunger and the second piston reciprocation to move respectively.
As the prioritization scheme of the present invention, glue seat includes glue inlet tube road, liquid storage cylinder, for plastic pipe and glue spraying pipeline, enters
The serrated end of plastic pipe is connected with liquid storage cylinder, is connected for the expansion end of plastic pipe with liquid storage cylinder, serrated end and spray for plastic pipe
Plastic pipe is connected, and the top of the first plunger is located at the lower section of the first piezoelectric stack, and the bottom of the first plunger is placed in liquid storage cylinder, the
The top of two plungers is located at the lower section of the second piezoelectric stack, and the bottom of the second plunger is placed in glue spraying pipeline.
As the prioritization scheme of the present invention, spray orifice is provided with shower nozzle, spray orifice is connected with glue spraying pipeline.
As the prioritization scheme of the present invention, driver provides high level to the first piezoelectric stack and the second piezoelectric stack respectively
And low level, driver control the glue amount of supply and injection by adjusting the size of high level, driver is by adjusting by low electricity
Flat become turns to time of high level to control the speed of gelatin jet.
As the prioritization scheme of the present invention, the first spring and the second bullet are butterfly spring.
As the prioritization scheme of the present invention, the first piezoelectric stack is arranged on the first pre-load nut by the first fixing bolt
On.
As the prioritization scheme of the present invention, the second piezoelectric stack is arranged on the second pre-load nut by the second fixing bolt
On.
The present invention has positive effect：1) the second plunger of the invention only has impulsive force to glue, will not hit shower nozzle
The particle glue for causing to be clipped between shower nozzle also will not cause shower nozzle badly damaged by conquassation due to hitting shower nozzle, significantly
The service life for extending piezoelectricity tandem plunger ejecting adhesive dispenser, reduce maintenance cost；
2) driver of the invention controls the glue amount for supplying and spraying each time by adjusting the size of high level；
3) the present invention controls driver to be changed into high level from low level by the elongation time of the second piezoelectric stack of regulation
The speed sprayed each time of time control glue, realize the digitlization regulation of piezoelectricity tandem plunger ejecting adhesive dispenser,
Substantially increase operating efficiency.
Brief description of the drawings
In order that present disclosure is easier to be clearly understood, it is right below according to specific embodiment and with reference to accompanying drawing
The present invention is described in further detail, wherein：
Fig. 1 is the structure chart of the present invention；
Fig. 2 is the structure chart of glue seat；
Fig. 3 is the drive signal schematic diagram that driver is sent.
Wherein, 100, for colloid system, 200, spraying system, 300, driver, the 11, first spring, the 12, first cavity, 13,
First pre-load nut, the 14, first piezoelectric stack, the 15, first plunger, the 16, first fixing bolt, 21, second spring, 22, second
Cavity, the 23, second pre-load nut, the 24, second piezoelectric stack, the 25, second plunger, 26, glue seat, 27, shower nozzle, 28, second is solid
Determine bolt, 261, glue inlet tube road, 262, liquid storage cylinder, 263, for plastic pipe, 264, glue spraying pipeline, 271, spray orifice.
Embodiment
As shown in figure 1, the invention discloses a kind of piezoelectricity tandem plunger ejecting adhesive dispenser, including supply colloid system 100
With spraying system 200, piezoelectricity tandem plunger ejecting adhesive dispenser also includes being used for the driver 300 for sending drive signal, supplied
Colloid system 100 includes the first spring 11, the first cavity 12, the first pre-load nut 13, the 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, and the first piezoelectric stack 14 is located in the first cavity 12, the first piezoelectricity
14 are stacked between the first pre-load nut 13 and the first plunger 15, the first spring 11 is arranged on the lower surface of the first plunger 15；
Spraying system 200 includes second spring 21, the second cavity 22, the second pre-load nut 23, the second piezoelectric stack 24, the second plunger
25th, glue seat 26 and shower nozzle 27, the second pre-load nut 23 are arranged on the upper end of the second cavity 22, and the second piezoelectric stack 24 is positioned at the
In two cavitys 22, between the second pre-load nut 23 and the second plunger 25, second spring 21 is arranged on the second piezoelectric stack 24
The lower surface of second plunger 25, is fixed on glue seat 26 for colloid system 100, and shower nozzle 27 is arranged on glue seat 26, driver
300 are connected with the first piezoelectric stack 14 and the second piezoelectric stack 24 respectively, and driver 300 controls the first piezoelectric stack 14 respectively
With the elongation and shortening of the second piezoelectric stack 24, so as to driving the first plunger 15 and the second plunger 25 to move back and forth respectively.Wherein,
First pre-load nut 13 is connected through a screw thread installed in the upper end of the first cavity 12, and the first pre-load nut 13 is by the first piezoelectric stack
14 are tightly pressed on the first plunger 15, and the second pre-load nut 23 is connected through a screw thread installed in the upper end of the second cavity 22, the
Second piezoelectric stack 24 is tightly pressed on the second plunger 25 by two pre-load nuts 23；First spring 11 is that the first plunger 15 provides
Restoring force, second spring 21 are that the second plunger 25 provides restoring force.
As shown in Fig. 2 glue seat 26 includes 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, is connected for the expansion end of plastic pipe 263 with liquid storage cylinder 262, for sebific duct
The serrated end in road 263 is connected with glue spraying pipeline 264, and the top of the first plunger 15 is located at the lower section of the first piezoelectric stack 14, and first
The bottom of plunger 15 is placed in liquid storage cylinder 262, and the top of the second plunger 25 is located at the lower section of the second piezoelectric stack 24, the second plunger
25 bottom is placed in glue spraying pipeline 264.Wherein, glue inlet tube road 261 and confession plastic pipe 263 are using contraction/distension pipeline
Structure, when liquid storage cylinder 262 reduces, the glue in liquid storage cylinder 262 can be discharged easily from for plastic pipe 263, work as liquid storage
When chamber 262 is expanded, glue easily can enter from glue inlet tube road 261.
Spray orifice 271 is provided with shower nozzle 27, spray orifice 271 is connected with glue spraying pipeline 264.
Wherein, the first spring 11 and second spring 21 are butterfly spring.First piezoelectric stack 14 fixes spiral shell by first
Bolt 16 is arranged on the first pre-load nut 13.Second piezoelectric stack 24 is arranged on the second pre-load nut by the second fixing bolt 28
On 23.
The drive signal schematic diagram that driver is sent is illustrated in figure 3, driver 300 is respectively to the He of the first piezoelectric stack 14
Second piezoelectric stack 24 provides high level and low level, and driver 300 controls supply and injection by adjusting the size of high level
Glue amount, driver 300 turns to time of high level to control the speed of gelatin jet by adjusting to be become by low level.
During work, driver 300 applies high level to the first piezoelectric stack 14 first, and the first piezoelectric stack 14 extends and pushed away
Dynamic first plunger 15 is travelled forward, and the glue in liquid storage cylinder 262 is squeezed into glue spraying pipeline 264, and now driver 300 is again to the
Two piezoelectric stacks 24 apply high level, and the second plunger 25 impacts forward under the promotion of the second piezoelectric stack 24, will be clipped in second
Glue between plunger 25 and shower nozzle 27 sprays.Then, driver 300 applies low level, the first pressure to the first piezoelectric stack 14
Electricity stacks 14 shortenings, and the first plunger 15 back moves in the presence of the first spring 11, due to the return motion of the first plunger 15
Glue will be sucked in liquid storage cylinder 262 from glue inlet tube road 261.Finally, driver 300 applies low electricity to the second piezoelectric stack 24
Flat, the second plunger 25 is returned to original state, is ready for injection next time.
In whole work process, because the maximum displacement of the second piezoelectric stack 24 is less than 100 microns, institute's used time is extended
Between only need tens of to microsecond more than 100, so the second plunger 25 only has impulsive force to glue, will be pressed from both sides without hitting shower nozzle 27
Band pimpled rubber hydraulic pressure between the second plunger 25 and shower nozzle 27 is burst, and the heavy wear of shower nozzle 27 will not be more caused because of shock.It is logical
The glue amount for supplying and spraying each time can be controlled by overregulating the high level size of driver 300, by adjusting the second piezo stack
The elongation time of heap 24, i.e., the signal that driver 300 is sent are become the time △ t for turning to high level, controllable glue by low level
The speed that liquid ejects each time, so as to realize that the digitlization of piezoelectricity tandem plunger ejecting adhesive dispenser is adjusted.
Particular embodiments described above, the purpose of the present invention, technical scheme and beneficial effect are carried out further in detail
Describe in detail it is bright, should be understood that the foregoing is only the present invention specific embodiment, be not intended to limit the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements done etc., it should be included in the guarantor of the present invention
Within the scope of shield.
Claims (7)
1. a kind of piezoelectricity tandem plunger ejecting adhesive dispenser, including for colloid system (100) and spraying system (200), its feature
It is：Described piezoelectricity tandem plunger ejecting adhesive dispenser also includes being used for the driver (300) for sending drive signal, described
For colloid system (100) include the first spring (11), the first cavity (12), the first pre-load nut (13), the 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), and described first
Piezoelectric stack (14) is located in the first cavity (12), and described the first piezoelectric stack (14) is located at the first pre-load nut (13) and the
Between one plunger (15), described the first spring (11) is arranged on the lower surface of the first plunger (15)；Described spraying system
(200) second spring (21), the second cavity (22), the second pre-load nut (23), the second piezoelectric stack (24), the second plunger are included
(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) be located in the second cavity (22), described the second piezoelectric stack (24) is located at the second pre-load nut
(23) between the second plunger (25), described second spring (21) is arranged on the lower surface of the second plunger (25), described confession
Colloid system (100) is fixed on glue seat (26), and described shower nozzle (27) is arranged on glue seat (26), described driver
(300) it is connected respectively with the first piezoelectric stack (14) and the second piezoelectric stack (24), described driver (300) controls respectively
The elongation and shortening of first piezoelectric stack (14) and the second piezoelectric stack (24), so as to drive the first plunger (15) and second respectively
Plunger (25) moves back and forth；Driver (300) applies high level to the second piezoelectric stack (24), and the second plunger (25) is in the second pressure
Electricity stacks to be impacted forward under the promotion of (24), by adjusting the elongation time of the second piezoelectric stack (24), will be clipped in the second plunger
(25) glue between shower nozzle (27) sprays.
A kind of 2. piezoelectricity tandem plunger ejecting adhesive dispenser according to claim 1, it is characterised in that：Described glue
Seat (26) include glue inlet tube road (261), liquid storage cylinder (262), for plastic pipe (263) and glue spraying pipeline (264), glue inlet tube road
(261) serrated end is connected with liquid storage cylinder (262), is connected for the expansion end of plastic pipe (263) with liquid storage cylinder (262), for sebific duct
The serrated end in road (263) is connected with glue spraying pipeline (264), and the top of the first plunger (15) is located under the first piezoelectric stack (14)
Side, the bottom of the first plunger (15) are placed in liquid storage cylinder (262), and the top of the second plunger (25) is located at the second piezoelectric stack (24)
Lower section, the bottom of the second plunger (25) is placed in glue spraying pipeline (264).
A kind of 3. piezoelectricity tandem plunger ejecting adhesive dispenser according to claim 2, it is characterised in that：Described shower nozzle
(27) spray orifice (271) is provided with, described spray orifice (271) is connected with glue spraying pipeline (264).
A kind of 4. piezoelectricity tandem plunger ejecting adhesive dispenser according to claim 1, it is characterised in that：Described driving
Device (300) provides high level and low level, described driving to the first piezoelectric stack (14) and the second piezoelectric stack (24) respectively
Device (300) controls the glue amount of supply and injection by adjusting the size of high level, and described driver (300) is by adjusting by low
Level change controls the speed of gelatin jet for the time of high level.
A kind of 5. piezoelectricity tandem plunger ejecting adhesive dispenser according to claim 1, it is characterised in that：Described first
Spring (11) and second spring (21) are butterfly spring.
A kind of 6. piezoelectricity tandem plunger ejecting adhesive dispenser according to claim 1, it is characterised in that：Described first
Piezoelectric stack (14) is arranged on the first pre-load nut (13) by the first fixing bolt (16).
A kind of 7. piezoelectricity tandem plunger ejecting adhesive dispenser according to claim 1, it is characterised in that：Described second
Piezoelectric stack (24) is arranged on the second pre-load nut (23) by the second fixing 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 |
Applications Claiming Priority (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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| CN105327835A CN105327835A (en) | 2016-02-17 |
| CN105327835B true CN105327835B (en) | 2017-12-01 |
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Families Citing this family (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 |
| DE102016123416A1 (en) * | 2016-12-05 | 2018-06-07 | Ba Assembly & Turnkey Systems Gmbh | application unit |
| CN109201400A (en) * | 2017-06-30 | 2019-01-15 | 常州高凯精密机械有限公司 | A kind of split type liquid droplet distribution device |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FI930425A (en) * | 1993-02-01 | 1994-08-02 | Sampower Oy | Method and apparatus for controlling diesel fuel injection |
| CN2864654Y (en) * | 2005-08-26 | 2007-01-31 | 宋国兴 | Gravity flow type oil spout mouth detector |
| US20070146442A1 (en) * | 2005-11-14 | 2007-06-28 | Mydata Automation Ab | System, assembly and method for jetting viscous medium onto a substrate |
| DE102012109123A1 (en) * | 2012-09-27 | 2014-03-27 | Vermes Microdispensing GmbH | Dosing system, dosing process and manufacturing process |
| CN102962170B (en) * | 2012-11-16 | 2015-10-14 | 上海交通大学 | The micro-specking adhesive dispenser of piezoelectric-driven diaphragm formula high temperature hot melt |
| 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 |
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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. |
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