CN203459238U - Piezoelectric-hydraulic control type dispensing device - Google Patents
Piezoelectric-hydraulic control type dispensing device Download PDFInfo
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- CN203459238U CN203459238U CN201320545626.1U CN201320545626U CN203459238U CN 203459238 U CN203459238 U CN 203459238U CN 201320545626 U CN201320545626 U CN 201320545626U CN 203459238 U CN203459238 U CN 203459238U
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Abstract
The utility model provides a piezoelectric-hydraulic control type dispensing device. The piezoelectric-hydraulic control type dispensing device comprises a power system, a displacement amplification system, a glue supply system and an injection system. The piezoelectric-hydraulic control type dispensing device is characterized in that the displacement amplification system comprises an upper cover, an upper ripple rigid membrane, sealing rings, an upper hydraulic cavity, a resetting spring, a lower ripple rigid membrane, a lower hydraulic cavity, a bottom cover, an anti-loosening cushion and a sealing ring end cap, wherein the upper cover and the upper hydraulic cavity are fixed by bolts and are tightly arranged on the upper ripple rigid membrane in a membrane cavity of the upper hydraulic cavity; the bottom cover, the lower hydraulic cavity and the upper hydraulic cavity are fixed together by bolts; the lower ripple rigid membrane in a membrane cavity in the lower hydraulic cavity and the resetting spring arranged on the lower ripple rigid membrane are also pressed by bolts to form a closed L-shaped hydraulic amplification cavity; the displacement amplification ratio is a diameter square ratio of the membrane cavities of the upper and lower hydraulic cavities; and the sealing rings are arranged in sealing grooves. According to the piezoelectric-hydraulic control type dispensing device, the problems of an existing dispensing device that the noise is great, the stability is not high and the frequency is low are solved, so that the universality of the dispensing device is increased and the good practical effect is realized.
Description
Technical field
The invention belongs to a glue field, relate in particular to contactless point glue equipment and system.
Background technology
Point colloid system is a kind of process equipment that is widely used in production field.From semiconductor packages industry, IC industry, SMT/PCB assembly industry, to welding, the notes of general industry, be coated with and sealing, by this system, realize the Process of Applying Glue to the point, line, surface of colloid.Point glue equipment, as a colloid system core component, mainly solves automation point glue, and to a glue speed, glue point mass, shape be important all.
In microelectronics Packaging industry, for adapting to the scrambling of workpiece, pursue high-quality, high-speed, high-precision point glue equipment, dispensing technology is gradually towards contactless some glue development.
At present, pneumatic type noncontact point glue equipment is simple in structure with it, cost is low etc., and feature has occupied the market advantage, but this point glue equipment but exists the shortcomings such as noise is large, stability is not high, frequency is low.
Summary of the invention
The object of this invention is to provide a kind of point glue equipment, be intended to solve the problem that existing point glue equipment noise is large, stability is not high, frequency is low.
The technical solution adopted in the present invention is: a kind of point glue equipment, comprises dynamical system, displacement amplification system, supplies colloid system and spraying system.
Dynamical system comprises piezoelectric ceramics power supply, piezoelectric stack, clamp nut, set bolt, locking pad, support casing.Piezoelectric ceramics power supply and driving piezoelectric stack communicate by power signal line each other; Support casing one end is threaded fixing with the upper cover of displacement amplification system, the other end is threaded with clamp nut; Clamp nut withstands piezoelectric stack simultaneously; Set bolt is fixed together piezoelectric ceramics and clamp nut; Lock ring pad is between clamp nut and support casing, in case clamp nut causes loosening because of piezoelectric stack kick that dither produces.
Displacement amplification system comprises upper cover, upper ripple rigid membrance, sealing ring, upper hydraulic chamber, returning spring, lower ripple rigid membrance, lower hydraulic pressure chamber body, bottom, locking pad, sealing ring plug.Be bolted upper cover and upper hydraulic chamber, and compress as for the upper ripple rigid membrance in upper hydraulic chamber diaphragm chamber; Bolt is fixed together bottom, lower hydraulic pressure chamber body and upper hydraulic chamber, bolt also compresses the lower ripple rigid membrance in lower hydraulic pressure chamber body diaphragm chamber and is placed in the returning spring on lower ripple rigid membrance simultaneously, formed airtight L-type hydraulic pressure enlarged cavity, the diameter duplicate ratio that its displacement amplification ratio is upper and lower hydraulic chamber diaphragm chamber; Sealing ring is placed in each seal groove, in case hydraulic oil is revealed.Adopt integral type ripple rigid membrance not only to have the flexibility the same with rubber diaphragm, also overcome diaphragm junction hydraulic oil leakage problem, improve amplification effect simultaneously.
For colloid system, comprise packing element, glue inlet tube road, sealing ring.Between packing element and glue inlet tube road, be threaded; Glue inlet tube road is bolted on the glue cavity of spraying system; Sealing ring is placed in each seal groove, in case glue is revealed.
Spraying system comprises striker, nozzle, sleeve, glue cavity, pulls out jack panel, pulls out tight cover and seal.Striker is threaded with the ripplet rigid membrance in displacement amplification system; Nozzle is placed in sleeve top, and one, sleeve is placed in glue cavity, and other end is placed in pulls out tight cover, then by pulling out jack panel, nozzle, sleeve and glue cavity is fixed; Seal is placed in each seal groove, in case glue is revealed.
The present invention, by supplying glue for colloid system ventilation, pushes spraying system with to be sprayed by glue; Dynamical system provides high low-voltage by piezoelectric ceramics power supply, make piezoelectric stack produce the micro-displacement of high-frequency reciprocating, this displacement is amplified through displacement amplification system, with returning spring acting in conjunction in the striker of spraying system, make striker obtain effective shift reciprocately, constantly clash into nozzle, each shock all forms instantaneous high pressure at nozzle place, ejection glue, forms drop.
The invention has the advantages that:
1, the present invention adopts integral type ripple rigid membrance to compare and have better amplification effect with general rubber diaphragm, effectively solves diaphragm junction hydraulic oil leakage problem simultaneously.
2, the present invention adopts L-type hydraulic pressure enlarged cavity, and point glue equipment striker and nozzle when not triggering, in closure state, are simplified relatively therefore just install, and at nozzle place, also there will not be and leak glue phenomenon.
3, the present invention is driven by piezoelectric stack, realizes injection response frequency fast, and glue point mass is controlled accurately, and noise is little; Abrasion is little, long service life.
4, the present invention is strong to the applicability of glue.
Accompanying drawing explanation
Fig. 1 is piezoelectricity-hydraulic controlling type point glue equipment schematic diagram of the present invention.
Fig. 2 is displacement amplification system A structure enlarged diagram in Fig. 1, filled arrows and hollowly represent that respectively piezoelectric stack extends and retraction is the extruded flow direction of hydraulic oil.
Fig. 3 is the structure enlarged diagram of upper ripple rigid membrance in Fig. 2 displacement amplification system.
Fig. 4 is the structure enlarged diagram of lower ripple rigid membrance in Fig. 2 displacement amplification system.
Fig. 5 is spraying system B structure enlarged diagram in Fig. 1.
The specific embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the present invention is further elaborated.
Point glue equipment disclosed in this invention, comprises dynamical system, displacement amplification system, supplies colloid system and spraying system four major parts.
As shown in Figure 1, the point glue equipment of institute of the present invention publicity.The dynamical system of point glue equipment, comprises piezoelectric ceramics power supply 34, piezoelectric stack 5, clamp nut 1, set bolt 2, locking pad 3, support casing 4.The positive square-wave voltage of piezoelectric ceramics power supply 34 outputs drives piezoelectric stack 5 to extend and retraction by power signal line, and the signal that collapsing length and frequency are exported by piezoelectric ceramics power supply 34 is determined; Support casing 4 one end are threaded with the upper cover 6 of displacement amplification system; Piezoelectric stack 5 is placed in to support casing 4, and the elongation end of piezoelectric stack 5 is vertically placed on the upper diaphragm 7 of displacement amplification system; Clamp nut 1 is threaded with support casing 4 upper ends, meanwhile, clamp nut 1 extruding piezoelectric stack 5, in the vertical direction carries out spacing to piezoelectric stack 5; And locking pad 3 is placed in the groove of support casing 4, loosening in order to prevent that clamp nut 1 from causing under the kick effect of piezoelectric stack 5; Set bolt 2 is fixed together piezoelectric stack 5 tail ends and clamp nut 1, carries out spacing in the horizontal direction to piezoelectric stack 5.
Displacement amplification system comprises upper cover 6, upper ripple rigid membrance 7, sealing ring 8, sealing ring 11, sealing ring 13, U-shaped sealing ring 28, sealing ring 31, sealing ring 32, upper hydraulic chamber 9, returning spring 10, lower ripple rigid membrance 33, lower hydraulic pressure chamber body 12, bottom 15, locking pad 30, sealing ring plug 29.Sealing ring 8 is placed in the seal groove of hydraulic chamber 9, and upper ripple rigid membrance 7 is placed in to the diaphragm groove on seal groove, again through bolt fixed cover 6 and upper hydraulic chamber 9, compression is placed in ripple rigid membrance 7 and sealing ring 8 on hydraulic chamber 9, realizes the sealing to the spacing and hydraulic oil of upper ripple rigid membrance 7; The U-shaped groove in top that U-shaped sealing ring 28 is placed in bottom 15, and blocked with sealing ring plug 29, realize bottom hydraulic oil seal; Sealing ring 11, sealing ring 13, sealing ring 31 are placed in lower hydraulic pressure chamber body 12 corresponding seal groove separately; Lower ripple rigid membrance 33 is connected with the striker 14 of spraying system, and locking pad 30 is placed in lower ripple rigid membrance 33 grooves, and lower ripple rigid membrance 33 and striker 14 are played to locking effect.Lower diaphragm 33 is placed in the diaphragm groove of lower hydraulic pressure chamber body 12; Sealing ring 32 is placed in 9 corresponding seal grooves of hydraulic chamber; Returning spring 10 is placed on the spring base of lower ripple rigid membrance 33; By bolt, bottom 15, lower hydraulic pressure chamber body 12 and upper hydraulic chamber 9 are fixed together, formed airtight L-type hydraulic pressure enlarged cavity, while bolt is press seal circle 11, sealing ring 13, sealing ring 31, sealing ring 32, lower ripple rigid membrance 33 and returning spring 10 also, realizes the pretension to the spacing and returning spring 10 of the sealing of hydraulic oil, lower ripple rigid membrance 33;
When piezoelectric stack 5 extends, in promotion, ripple rigid membrance 7 moves downward, and forces the hydraulic oil in hydraulic chamber 9 via side runner, to enter the diaphragm chamber of lower hydraulic pressure chamber body 12, promotes lower ripple rigid membrance 33 and moves upward.When piezoelectric stack 5 retraction, by returning spring 10, promoting lower ripple rigid membrance 33 moves downward, make hydraulic oil in the diaphragm chamber of lower hydraulic pressure chamber body 12 enter upper hydraulic chamber 9 via the side runner of L-type hydraulic pressure enlarged cavity, ripple rigid membrance 7 reinstatement that moves upward in promotion, as shown in Figure 2.In this process, known amplification ratio
X in formula---represent piezoelectric stack 5 elongations;
Y---represent striker 14 amounts of lifting;
D---the diaphragm chamber diameter of hydraulic chamber 9 in expression;
D---represent the diaphragm chamber diameter of lower hydraulic pressure chamber body 12.
For colloid system, comprise packing element 16, glue inlet tube road 17, sealing ring 18.Between packing element 16 and glue inlet tube road 17, be threaded; Glue inlet tube road 17 is bolted on the glue cavity 25 of spraying system; Sealing ring 18 is placed in glue inlet tube road 17 seal grooves, in case glue is revealed.To the glue ventilation of packing element 16, extruding glue enters in the glue cavity 25 of spraying system through glue inlet tube road 17.
Spraying system comprises striker 14, nozzle 21, sleeve 23, glue cavity 25, pulls out jack panel 19, pulls out tight cover 20, U-shaped sealing ring 26, sealing ring 22, sealing ring 24 and sealing ring 27.Striker 14 is threaded with the lower ripple rigid membrance 33 in displacement amplification system; Striker 14, through U-shaped sealing ring 28, enters in glue cavity 25; U-shaped sealing ring 26 is placed in the lower seal groove of the bottom 15 of displacement amplification system, in case glue enters in the hydraulic cavities of displacement amplification system; Sealing ring 27 is placed in the lower seal groove of bottom 15, in case glue side leakage; By bolt, glue cavity 25 and bottom 15 are fixed together; Sealing ring 22 and sealing ring 24 are placed in respectively the corresponding seal groove of sleeve 23; Nozzle 21 is placed in sleeve 23 tops; Sleeve 23 and nozzle 21 are placed in and pull out tight cover 20; Pulling out tight cover 20 is placed in and pulls out jack panel 19; Pull out jack panel 19 and be threaded with glue cavity 25, via pulling out tight cover 20, nozzle 21, sleeve 23 are pressed in glue cavity, each sealing ring is squeezed and forms sealing, prevents glue side leakage.
Operation principle:
When point glue equipment is when until duty, piezoelectric ceramics power supply 34 is not given electricity, and due to the effect of returning spring 10 pretightning forces, striker 14 and nozzle 21 are in closure state; Now, to packing element 16 air feed for colloid system, extruding glue enters the glue cavity 25 of spraying system, cavity filling via glue inlet tube road.
Regulate piezoelectric ceramics power supply 34 to obtain suitable voltage signal.Start piezoelectric ceramics power supply 34, when output HIGH voltage, piezoelectric stack 5 extends, and in promotion, ripple rigid membrance 7 is out of shape downwards; The diaphragm chamber hydraulic oil of upper hydraulic chamber 9 is squeezed, and enters the diaphragm chamber of lower hydraulic pressure chamber body 12 via the measurement flow channel of L-type hydraulic pressure enlarged cavity, promotes lower ripple rigid membrance 33.When thrust is greater than making a concerted effort of being comprised of the frictional force of deformation force, U-shaped sealing ring 28 and the U-shaped sealing ring 26 of returning spring 10 and glue resistance, lower ripple rigid membrance 33 drives strikers 14 to move upward; Until thrust and this be while making a concerted effort to reach balance, striker 14 stop motions, are at the highest notch.In this process, for colloid system, push glue always and fill the cavity that moves upward and cause by striker 14.
When piezoelectric ceramics power supply 34 output LOW voltage, piezoelectric stack 5 retractions, upper diaphragm 7 is deformation-recovery original state upwards, now thrust becomes suction, hydraulic oil is back in the diaphragm chamber of hydraulic chamber 9 from the diaphragm chamber of lower hydraulic pressure chamber body 12 via the measurement flow channel of L-type hydraulic pressure enlarged cavity, causes that lower waveform diaphragm 33 is out of shape downwards.Returning spring 10 overcomes the frictional force of U-shaped sealing ring 28 and U-shaped sealing ring 26 and making a concerted effort of glue resistance composition simultaneously, promotes striker 14 and moves downward fast, clashes into nozzle 21; Clash into moment at nozzle 21 places' formation instantaneous high pressures, stop striker 14 to move downward on the one hand, on the other hand, the glue of nozzle 21 heads is extruded, form a glue point, realize once and spraying.
Piezoelectric ceramics power supply 34 is continuously exported high-frequency high low-voltage, for colloid system, pushes glue cavity filling always, and corresponding spot gluing equipment has just been realized high-frequency, high-precision spray site glue.
Claims (1)
1. piezoelectricity-hydraulic controlling type point glue equipment, comprise dynamical system, displacement amplification system, for colloid system and spraying system, it is characterized in that, displacement amplification system comprises upper cover, upper ripple rigid membrance, sealing ring, upper hydraulic chamber, returning spring, lower ripple rigid membrance, lower hydraulic pressure chamber body, bottom, locking pad, sealing ring plug, wherein, be bolted upper cover and upper hydraulic chamber, and compress as for the upper ripple rigid membrance in upper hydraulic chamber diaphragm chamber, bolt is by bottom, lower hydraulic pressure chamber body and upper hydraulic chamber are fixed together, bolt also compresses the lower ripple rigid membrance in lower hydraulic pressure chamber body diaphragm chamber and is placed in the returning spring on lower ripple rigid membrance simultaneously, formed airtight L-type hydraulic pressure enlarged cavity, the diameter duplicate ratio that its displacement amplification ratio is upper and lower hydraulic chamber diaphragm chamber, sealing ring is placed in each seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320545626.1U CN203459238U (en) | 2013-09-04 | 2013-09-04 | Piezoelectric-hydraulic control type dispensing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320545626.1U CN203459238U (en) | 2013-09-04 | 2013-09-04 | Piezoelectric-hydraulic control type dispensing device |
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| CN203459238U true CN203459238U (en) | 2014-03-05 |
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| CN201320545626.1U Expired - Fee Related CN203459238U (en) | 2013-09-04 | 2013-09-04 | Piezoelectric-hydraulic control type dispensing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433178A (en) * | 2013-09-04 | 2013-12-11 | 吉林大学 | Piezoelectric-hydraulic control type dispensing device |
| CN109395969A (en) * | 2018-11-26 | 2019-03-01 | 深圳市锐德精密科技有限公司 | Mechanical type spraying valve |
| CN113275202A (en) * | 2021-07-22 | 2021-08-20 | 深圳市振力达科技有限公司 | Dispensing head mechanism, dispensing device and dispensing equipment |
-
2013
- 2013-09-04 CN CN201320545626.1U patent/CN203459238U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433178A (en) * | 2013-09-04 | 2013-12-11 | 吉林大学 | Piezoelectric-hydraulic control type dispensing device |
| CN109395969A (en) * | 2018-11-26 | 2019-03-01 | 深圳市锐德精密科技有限公司 | Mechanical type spraying valve |
| CN113275202A (en) * | 2021-07-22 | 2021-08-20 | 深圳市振力达科技有限公司 | Dispensing head mechanism, dispensing device and dispensing equipment |
| CN113275202B (en) * | 2021-07-22 | 2021-11-16 | 深圳市振力达科技有限公司 | Dispensing head mechanism, dispensing device and dispensing equipment |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20160904 |