CN206794039U - A kind of piezo jet formula point gum machine - Google Patents
A kind of piezo jet formula point gum machine Download PDFInfo
- Publication number
- CN206794039U CN206794039U CN201720503006.XU CN201720503006U CN206794039U CN 206794039 U CN206794039 U CN 206794039U CN 201720503006 U CN201720503006 U CN 201720503006U CN 206794039 U CN206794039 U CN 206794039U
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- Prior art keywords
- glue
- valve rod
- piezoelectric stack
- valve
- valve body
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Abstract
A kind of point gum machine is the utility model is related to, specifically a kind of piezo jet formula point gum machine.A kind of piezo jet formula point gum machine, including valve body and glue case, set point glue equipment on valve body, and point glue equipment includes valve rod, returning spring and piezoelectric stack；Returning spring is sleeved on the stage casing of valve rod, and the upper end of valve rod passes through valve body, and linear bearing is set between valve body and valve rod, and body base has glue chamber, and glue bottom of chamber portion sets valve seat, and valve rod connects dispensing nozzle with valve seat through glue chamber；Piezoelectric stack is arranged on valve rod side, the bottom of piezoelectric stack is fixed on valve body, in the flexible hinge that is arranged above of piezoelectric stack, flexible hinge is connected in top end of the valve body and valve rod, and the distance between flexible hinge and piezoelectric stack are in the range of the straight-line displacement of piezoelectric stack；In the junction of valve rod and flexible hinge, locking nut is set；Glue case connects glue chamber by flexible pipe, and glue box top sets and supplies glue pressure entrance.It is fast that the point gum machine can be precisely controlled glue volume, dispensing.
Description
Technical field
A kind of point gum machine is the utility model is related to, specifically a kind of piezo jet formula point gum machine.
Background technology
Electronic industry is worldwide largest while is also industry with the fastest developing speed, the development scale of electronic industry
A national comprehensive strength can be weighed with horizontal set to a certain extent.Because circuit used in current electronic industry
Plate is two-sided paster mostly, in secondary melt down, in order to prevent the surface mount elements in input face from being come off because tin cream melts again, therefore
Need on fixed position of the glue spots in PCB in input face point gum machine, for electronic component is fixed on pcb board.
Therefore dispensing technology is exactly essentially by fluid（Such as scaling powder, conductive epoxy resin and adhesive etc.）, put in work
Part（Microelectronic chip, component etc.）Appropriate location on be used for fix electronic component.
With the sustainable development of science and technology, dispensing technology also made significant headway, the species of glue and application
Occasion is also more and more.Dispensing technology inherently from the point of view of can tap touch dispensing and non-contact dispensing, contact is for dispensing glue
Principle is to lift dispensing needle head to make glue separate with syringe needle, so as to form glue point on substrate.Contactless dispensing principle is
Glue is received high pressure effect in a certain way, be ejected into after being derived from sufficiently large kinetic energy with certain speed on substrate.It is non-
Contact dispensing technology only needs to move moving without vertical direction along X-axis, Y direction during dispensing, and this causes
Dispensing speed is greatly improved, and the glue volume ejected every time can be precisely controlled, and ensure that dispensing
Uniformity.But non-contacting injecting type point gum machine is studied also less now in China, is come with some shortcomings.
Utility model content
Problem to be solved in the utility model is overcome the deficiencies in the prior art, there is provided a kind of piezo jet formula dispensing
Machine, the point gum machine can glue fixing fabric structure precisely, dispensing speed it is fast.
To solve the above problems, the technical solution adopted in the utility model is：A kind of piezo jet formula point gum machine, including valve
Body and glue case, set point glue equipment on valve body, and the point glue equipment includes valve rod, returning spring and piezoelectric stack；Described time
Multiple spring housing is mounted in the stage casing of valve rod, and the upper end of valve rod passes through valve body, linear bearing, valve body bottom are set between valve body and valve rod
Portion has glue chamber, and glue bottom of chamber portion sets valve seat, and the valve rod connects dispensing nozzle with valve seat through glue chamber；The piezoelectricity
Stacking and be arranged on valve rod side, the bottom of piezoelectric stack is fixed on valve body, and flexible hinge is arranged above in piezoelectric stack,
The flexible hinge is connected in top end of the valve body and valve rod, and the distance between flexible hinge and piezoelectric stack are in the straight of piezoelectric stack
In the range of displacement of the lines；In the junction of valve rod and flexible hinge, locking nut is set；The glue case connects glue chamber by flexible pipe,
Glue box top sets and supplies glue pressure entrance.
Preferably, the top that the glue chamber is connected with valve body sets elastic sealing ring.
Preferably, valve seat and the valve body junction sets O-ring seals.
Preferably, the locking nut uses wing nut.
Preferably, the piezoelectric stack is formed by stacking by multiple piezoelectric ceramic pieces.
Preferably, the nozzle diameter is in the range of 0.1-1mm.
The beneficial effects of the utility model are：
1st, the displacement moved up and down and power, power output and carry-out bit of the piezoelectric stack to load are produced using piezoelectric stack
Move greatly, the response time is short, and speed is fast, to the high resolution of displacement, and then can realize and glue volume is precisely controlled.
2nd, using locking nut can by knob nut come adjust the decrement of returning spring and elastic sealing ring so as to
Change the glue volume of injection valve injection, the glue volume sprayed as needed is adjusted in real time.
3rd, valve rod can move up and down in the presence of flexible hinge and returning spring, be turned on and off glue chamber, complete
Dispensing acts.
4th, linear bearing is set on the top of valve rod, valve rod is connected through linear bearing with valve body, valve rod can be weakened
The horizontal force received, enables valve rod smoothly to be moved along a straight line along vertical direction.
5th, elastic sealing ring is set on the top that glue chamber is connected with valve body, sets O shapes close in valve seat and valve body junction
Seal, good sealing function can be played, prevents glue from being revealed around nozzle.
The detailed process that the utility model uses is：
Valve rod is in close contact in the presence of returning spring with valve seat, and now nozzle is plugged, and colloid is in high feed pressure
Power（About 1MPa）Under be filled with whole glue chamber；Piezoelectric stack is powered, under the high level effect of a square wave, piezo stack
Heap extends upward power output and displacement, and the amplification for being displaced through flexible hinge of piezoelectric stack output moves up valve rod, from
Valve opening seat, now nozzle be opened, so a branch of glue just splashes in the presence of high feed pressure from nozzle；The side of working as
When the low level of ripple is acted on piezoelectric stack, piezoelectric stack is returned to original length, valve rod in the presence of returning spring to
Nozzle is closed in lower motion, while the closing of nozzle will force colloid to cut off, and the part colloid outside nozzle is in the presence of inertia
Fly away from nozzle；In low and high level colloid action, nozzle is constantly opened and closed, and so as to constantly eject glue, is led to
Injection speed for dispensing glue and precision can very easily be controlled by spending the time of control low and high level effect.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model.
Wherein reference is as follows：
1st, valve body；2nd, glue case；3rd, point glue equipment；31st, valve rod；32nd, returning spring；33rd, piezoelectric stack；4th, linear bearing；
5th, glue chamber；6th, valve seat；7th, dispensing nozzle；8th, flexible hinge；9th, locking nut；10th, for glue pressure entrance.
Embodiment
The utility model is described further below in conjunction with the accompanying drawings：
A kind of piezo jet formula point gum machine, including valve body 1 and glue case 2, point glue equipment 3, the dispensing are set on valve body 1
Device 3 includes valve rod 31, returning spring 32 and piezoelectric stack 33；The returning spring 32 is sleeved on the stage casing of valve rod 31, valve rod
31 upper end passes through valve body 1, linear bearing 4 is set between valve body 1 and valve rod 31, the bottom of valve body 1 has glue chamber 5, glue
The bottom of chamber 5 sets valve seat, and the valve rod 31 connects dispensing nozzle 7 through glue chamber 5 and valve seat 6；The piezoelectric stack 33 is set
In the side of valve rod 31, the bottom of piezoelectric stack 33 is fixed on valve body 1, and flexible hinge 8 is arranged above in piezoelectric stack 33,
The flexible hinge 8 is connected on the top of valve body 1 and valve rod 31, and the distance between flexible hinge 8 and piezoelectric stack 33 are in piezoelectricity
Stack in the range of 33 straight-line displacement；In the junction of valve rod 31 and flexible hinge 8, locking nut 9 is set；The glue case 2 passes through
Flexible pipe connection glue chamber 5, the top of glue case 2, which is set, supplies glue pressure entrance 10.
The top that glue chamber 5 is connected with valve body 1 sets elastic sealing ring, and valve seat 6 and valve body 1 junction sets O shapes
Sealing ring, the locking nut 9 use wing nut.
Piezoelectric stack 33 is formed by stacking by multiple piezoelectric ceramic pieces, and the nozzle diameter is in the range of 0.1-1mm.
The beneficial effects of the utility model are：The displacement moved up and down and power, piezoelectricity are produced using piezoelectric stack 33
Stack that power outputs and the output displacement of 33 pairs of loads are big, and the response time is short, and speed is fast, to the high resolution of displacement, and then can be with
Realization is precisely controlled to glue volume；Returning spring 32 and elasticity can be adjusted by knob nut using locking nut 9
The decrement of sealing ring so as to change the glue volume of injection valve injection, adjusted in real time by the glue volume sprayed as needed
It is whole；Valve rod 31 can move up and down in the presence of flexible hinge 8 and returning spring 32, be turned on and off glue chamber 5, complete point
Glue acts；Linear bearing 4 is set on the top of valve rod 31, valve rod 31 is connected through linear bearing 4 with valve body 1, can weaken
The horizontal force that valve rod 31 receives, valve rod 31 is set smoothly to be moved along a straight line along vertical direction；In glue chamber 5 and valve
The top that body 1 connects sets elastic sealing ring, sets O-ring seals in valve seat 6 and the junction of valve body 1, can play well
Sealing function, prevent glue from being revealed around nozzle.
The detailed process that the utility model uses is：Valve rod 31 is in close contact in the presence of returning spring 32 with valve seat 6,
Now nozzle is plugged, and colloid is in high feed pressure（About 1MPa）Under be filled with whole glue chamber 5；It is logical to piezoelectric stack 33
Electricity, under the high level effect of a square wave, piezoelectric stack 33 extends upward power output and displacement, the position that piezoelectric stack 33 exports
The amplification that flexible hinge 8 is crossed by Mobile Communication moves up valve rod 31, lifts off a seat 6, and now nozzle is opened, and so a branch of glue exists
Just splashed in the presence of high feed pressure from nozzle；When the low level of square wave is acted on piezoelectric stack 33, piezoelectricity
Stack 33 and be returned to original length, valve rod 31 moves downward closing nozzle, while the pass of nozzle in the presence of returning spring 32
Closing will force colloid to cut off, and the part colloid outside nozzle flies away from nozzle in the presence of inertia；In low and high level colloid action
When, nozzle is constantly opened and closed, so as to constantly ejecting glue, by controlling time that low and high level acts on can be with
Very easily speed and precision for dispensing glue are sprayed in control.
On the confession glue laminated power of glue case 2, set at the top of glue case 2 and be easy to the compressed air through processing for glue pressure entrance 10
Into to ensure that the compressed air from air compressor out can be first passed through precision and subtracted by compressed air with stable speed
Pressure valve processing, and then ensure that it is steady and appropriate for glue laminated power to enter in glue case 2；Obvious, glue case 2 should also have
For glue entrance, it can be placed in the side wall of glue case 2, be blocked up, will not be repeated here with plug.
Power supply on piezoelectric stack 33, it is clear that, reciprocal position occurs in the presence of electric current for piezoelectric stack 33
Move, it is necessary to external power supply.There is some drive power supply for piezoelectric ceramics chips in the prior art, one kind can be chosen at random, only
Square wave voltage signal, amplitude, frequency and the dutycycle point as needed of the square wave voltage signal can be provided by changing power supply chip
The object of glue adjusts at any time.
It is described above, only it is preferred embodiment of the present utility model, is not that other forms are made to the utility model
Limitation.Any person skilled in the art is changed or is modified as possibly also with the technology contents of the disclosure above equivalent
The equivalent embodiment of change.But it is every without departing from the content of the technical scheme of the utility model, according to construction of the present utility model and
Any simple modification, equivalent variations and the remodeling that operation principle is made to above example, still fall within the utility model technical side
The protection domain of case.
Claims (6)
1. a kind of piezo jet formula point gum machine, including valve body and glue case, it is characterised in that：Point glue equipment is set on valve body, institute
Stating point glue equipment includes valve rod, returning spring and piezoelectric stack；The returning spring is sleeved on the stage casing of valve rod, the upper end of valve rod
Connected by linear bearing with valve body, body base has glue chamber, and glue bottom of chamber portion sets valve seat, and the valve rod passes through glue
Chamber connects dispensing nozzle with valve seat；The piezoelectric stack is arranged on valve rod side, and the bottom of piezoelectric stack is fixed on valve body,
Piezoelectric stack is arranged above flexible hinge, and the flexible hinge is connected in top end of the valve body and valve rod, flexible hinge and pressure
Electricity the distance between is stacked in the range of the straight-line displacement of piezoelectric stack；In the junction of valve rod and flexible hinge, locking screw is set
It is female；The glue case connects glue chamber by flexible pipe, and glue box top sets and supplies glue pressure entrance.
A kind of 2. piezo jet formula point gum machine according to claim 1, it is characterised in that：The glue chamber is connected with valve body
Top set elastic sealing ring.
A kind of 3. piezo jet formula point gum machine according to claim 1, it is characterised in that：Valve seat and the valve body junction
O-ring seals are set.
A kind of 4. piezo jet formula point gum machine according to claim 3, it is characterised in that：The locking nut uses butterfly
Nut.
A kind of 5. piezo jet formula point gum machine according to claim 4, it is characterised in that：The piezoelectric stack is by multiple
Piezoelectric ceramic piece is formed by stacking.
A kind of 6. piezo jet formula point gum machine according to claim 5, it is characterised in that：The nozzle diameter is in 0.1-
In the range of 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720503006.XU CN206794039U (en) | 2017-05-08 | 2017-05-08 | A kind of piezo jet formula point gum machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720503006.XU CN206794039U (en) | 2017-05-08 | 2017-05-08 | A kind of piezo jet formula point gum machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206794039U true CN206794039U (en) | 2017-12-26 |
Family
ID=60739279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720503006.XU Expired - Fee Related CN206794039U (en) | 2017-05-08 | 2017-05-08 | A kind of piezo jet formula point gum machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206794039U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108063565A (en) * | 2018-01-08 | 2018-05-22 | 吉林大学 | A kind of bionical rifle shrimp of aggressiveness |
| CN111617932A (en) * | 2020-05-20 | 2020-09-04 | 厦门鑫奥格自动化设备有限公司 | Ejecting type dispensing module of dispenser |
-
2017
- 2017-05-08 CN CN201720503006.XU patent/CN206794039U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108063565A (en) * | 2018-01-08 | 2018-05-22 | 吉林大学 | A kind of bionical rifle shrimp of aggressiveness |
| CN111617932A (en) * | 2020-05-20 | 2020-09-04 | 厦门鑫奥格自动化设备有限公司 | Ejecting type dispensing module of dispenser |
| CN111617932B (en) * | 2020-05-20 | 2021-05-11 | 厦门鑫奥格自动化设备有限公司 | Ejecting type dispensing module of dispenser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20171226 Termination date: 20200508 |