CN208161939U - A kind of injection valve - Google Patents
A kind of injection valve Download PDFInfo
- Publication number
- CN208161939U CN208161939U CN201820112160.9U CN201820112160U CN208161939U CN 208161939 U CN208161939 U CN 208161939U CN 201820112160 U CN201820112160 U CN 201820112160U CN 208161939 U CN208161939 U CN 208161939U
- Authority
- CN
- China
- Prior art keywords
- nozzle
- frame
- injection valve
- needle body
- needle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000002347 injection Methods 0.000 title claims abstract description 35
- 239000007924 injection Substances 0.000 title claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 54
- 230000003321 amplification Effects 0.000 claims abstract description 30
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 30
- 239000003292 glue Substances 0.000 claims abstract description 28
- 239000000919 ceramic Substances 0.000 claims abstract description 15
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims description 16
- 238000009826 distribution Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000116 mitigating effect Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000003670 easy-to-clean Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 108010010803 Gelatin Proteins 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Abstract
The utility model discloses a kind of injection valve, including frame and nozzle mechanism, sequentially connected piezoelectric ceramic actuator, amplification lever and nozzle needle mechanism are installed in frame, nozzle mechanism includes pedestal, it is equipped in pedestal for glue runner, for glue runner one end be equipped with upward for Jiao Kou, be equipped with gum outlet directed downwardly for the other end of glue runner, nozzle be installed at gum outlet；Nozzle needle mechanism includes guide sleeve and needle body, the lower end of guide sleeve stretches out frame and is placed in the top at gum outlet, needle body is sheathed in guide sleeve and the lower end aligned nozzle of needle body, the reset spring of connection needle body is also equipped on guide sleeve, piezoelectric ceramic actuator connects the upper end of needle body by amplification lever, and drive needle body to move downward to block nozzle, reach dispensing purpose.The design stable structure is leaned on, cleaning easy to disassemble, and service life is high.
Description
Technical field
The utility model relates to spot gluing equipment field, specially a kind of injection valve.
Background technique
Fluid injection dispensing technology is a key technology in microelectronics Packaging, it can construct to be formed point, line, surface and
Various figures are widely used in chip and fix, encapsulate in the fields such as back-off and chip coating.Glue spraying valve is by highly viscous fluid
(solder flux, conducting resinl, epoxy resin and adhesive etc.) is ejected into the suitable position of workpiece (chip, electronic component etc.), to realize
Connection between component mechanically or electrically.Leading dispensing mode to be applied on the market today is contact dispensing, when being divided into
M- pressure-type, piston-valve-type, three kinds of spiral pump-type, but contact dispensing is unable to satisfy the micro dispensing of industrial nanoliter level
With high speed dispensing demand more than tens of Hertz.Spraying type dispensing valve just comes into being, it is able to achieve high speed, high-frequency, micro
Dispensing, therefore be considered as follow-on glue dispensing valve.But nowadays injecting type structure on the market is not sufficiently stable reliably mostly, is made
It is short with the service life, it is at high cost.
Utility model content
The shortcomings that in order to overcome the above-mentioned prior art to refer to, it is high that this practical utility model provides a kind of rigidity, stability and
The injection valve of good reliability.
This practical utility model solve technical solution that its technical problem uses for：A kind of injection valve, including frame and peace
Nozzle mechanism loaded on the frame lower end is equipped with sequentially connected piezoelectric ceramic actuator, amplification lever in the frame
With nozzle needle mechanism, the nozzle mechanism includes pedestal, is equipped in the pedestal for glue runner, is equipped with upward for one end of glue runner
For Jiao Kou, be equipped with gum outlet directed downwardly for the other end of glue runner, nozzle be installed at the gum outlet；The nozzle needle mechanism
Including guide sleeve and needle body, the top that the frame is placed at the gum outlet, the needle are stretched out in the lower end of the guide sleeve
Body can slide up and down to be sheathed in the guide sleeve and the lower end aligned of the needle body described in nozzle, also pacify on the guide sleeve
Equipped with the reset spring for connecting the needle body, the piezoelectric ceramic actuator connects the upper of the needle body by the amplification lever
End, and drive the needle body to move downward to block the nozzle, reach dispensing purpose.
The lower end of the frame is equipped with the card slot for cooperating the pedestal, so that assembly is more accurate.
One end of the amplification lever is equipped with the mounting portion of " work " shape, and the other end of the amplification lever, which is equipped with, to be equipped with
The striker of the needle body upper end can be oppressed, the center of the mounting portion is the oscillation center of the amplification lever, the mounting portion
Bottom end be fixed in the frame by screw, the piezoelectric ceramic actuator include the first piezoelectric element and second pressure
Electroceramics stacks, and the frame is fixed on by screw in the upper end of first piezoelectric element and the second piezoelectric element
Interior, the lower end of first piezoelectric element and the second piezoelectric element contradicts the upper end for being connected to the mounting portion respectively
Two sides, by the expansion and contraction of first piezoelectric element and the second piezoelectric element, the amplification lever is another
The pivot around the mounting portion is held, so that striker, which oppresses the needle body realization, slides up and down movement.Wherein, described to put
Big lever uses straight round hinge, compact-sized, there is higher rotating accuracy, and the two sides of the amplification lever are equipped with the digging of hollow out
Slot, while mitigating quality, rigidity is not affected；The lower end surface (and contact surface of needle body upper end) of the striker with
The center (i.e. oscillation center) for amplifying the mounting portion of lever is substantially flush (be located at same level on), and in +/- 5S, (S is error
Nozzle needle stroke) within, for such nozzle needle by transverse load very little, running accuracy is high, the displacement (sliding up and down for needle body) of Z axis
Good guarantee is arrived, injection valve overall performance is improved.
It further include having heating device, the heating device is installed on the gum outlet side of the nozzle mechanism.Work as gelatin viscosity
It when larger, is not easy to be sprayed under room temperature, heating device just plays very crucial effect, and wherein heating device includes mounting base and peace
Loaded on heating rod, temperature sensor and the control circuit board in the mounting base.
Be also equipped with hoisting mechanism in the frame, the hoisting mechanism includes mounting plate and guide post, the guide post it is upper
End connects the mounting plate, and the lower end of the guide post is stretched out outside the frame and connects the nozzle mechanism and heating device, institute
What the upper end for stating frame was equipped with the connection mounting plate rotates and upgrades screw, by rotating and upgrading screw described in adjusting, so that
The mounting plate drives nozzle mechanism and heating device slide downward together with the guide post, to make between frame and nozzle mechanism
Gap increase, nozzle mechanism easy to clean for glue runner；It is also equipped with above the nozzle needle mechanism in the frame
The stroke baffle of the card shelves mounting plate, guarantees the movement travel of mounting plate and nozzle mechanism, while being also prevented from mounting plate and breaking
To amplification lever or nozzle needle mechanism.Wherein, the quantity of the guide post is three, three guide post distributions in equilateral triangle,
Also triangular shape, stable structure are reliable for the mounting plate.
Dumping mouth is offered on the nozzle frame, the dumping mouth is connected to the runner, is equipped on the dumping mouth
Block plug.
The frame two sides are equipped with gusset, greatly improve the overall stiffness of frame and intensity, and system stress can be made to become
Shape reduces.There are four mounting holes of vertical and horizontal in its left side, and such nozzle mechanism just very easily can be in both direction
It is installed.
Compared with prior art, the beneficial effect of this practical utility model is：
One, its frame has high rigidity, and the frame of semi-closed structure increases semiclosed on the basis of open frame
Gusset is that frame stiffness greatly improves, and deformation caused by piezoelectric pile power output in the course of work can be effectively reduced；
Two, its enlarger has the advantages that high rigidity, low-quality, enlarger lever segment use " work " word beam shape
Formula can reduce lever mass under the premise of guaranteeing rigidity, improve the dynamic performance of enlarger；
Three, it is made of with hoisting mechanism three guide posts, the mounting plate of triangle, adjusting screw and heating element
Hoisting mechanism can make nozzle assembly convenient disassembly, and can guarantee the Z-direction height of nozzle assembly, lift mechanism lifts injection
While the ease for use of valve, the reliability of injection hair system can also be improved；
Four, its striker and nozzle needle installation faying face are concordant with enlarger hinge centres, and striker and nozzle needle install faying face
Within enlarger hinge centres ± 5s (s is nozzle needle stroke), guarantee that nozzle needle only by lesser tangential force, improves the longevity of nozzle needle
The stability of life and injection valve system.
Detailed description of the invention
Fig. 1 is the overall structure diagrammatic cross-section of this practical utility model；
Fig. 2 is the nozzle needle mechanism structure enlarged diagram of this practical utility model；
Fig. 3 is the amplification lever construction stereoscopic schematic diagram of this practical utility model；
Fig. 4 is the spray frame structure stereoscopic schematic diagram of this practical utility model；
Fig. 5 is that the amplification lever of this practical utility model connects the structural upright schematic diagram of needle body；
Fig. 6 is the structural representation that the injection valve of this practical utility model separates frame with nozzle mechanism by hoisting mechanism
Figure；
Fig. 7 is the overall structure stereoscopic schematic diagram of this practical utility model.
Specific embodiment
This practical utility model is further detailed with reference to the accompanying drawing.
A kind of injection valve, as shown in Figures 1 to 7, including frame 8 and the nozzle mechanism for being installed on 8 lower end of frame, institute
The lower end for stating frame 8 is equipped with the card slot 81 for cooperating the pedestal, is equipped with sequentially connected Piezoelectric Ceramic in the frame 8
Device, amplification lever 3 and nozzle needle mechanism, the piezoelectric ceramic actuator and nozzle needle mechanism centre are equipped with control circuit board 7；The spray
Nozzle mechanism includes pedestal 17, is equipped in the pedestal 17 for glue runner, for glue runner one end be equipped with upward for Jiao Kou, for glue
The other end of runner is equipped with gum outlet directed downwardly, is equipped with nozzle 20 at the gum outlet；The nozzle needle mechanism includes guide sleeve
16 and needle body 14, the lower end of the guide sleeve 16 stretch out the top that the frame 8 is placed at the gum outlet, the needle body 14
It can slide up and down and be sheathed on nozzle 20 described in the lower end aligned of the interior and described needle body 14 of the guide sleeve 16, the guide sleeve 16
Lower end several sealing rings (18,19) are installed；The reset spring for connecting the needle body 14 is also equipped on the guide sleeve 16
15, the piezoelectric ceramic actuator connects the upper end of the needle body 14 by the striker of amplification 3 front end of lever, and drives institute
It states needle body 14 to move downward to block the nozzle 20, reaches dispensing purpose.
As shown in figure 3, the amplification lever 3 is made of the mounting portion and lever portion of " work " shape, the lever portion end
Equipped with the striker 31 that can oppress 14 upper end of needle body is equipped with, the center of the mounting portion is in the swing of the amplification lever
The bottom end of the heart, the mounting portion is fixed in the frame 8 by screw 2, and the piezoelectric ceramic actuator includes the first piezoelectricity
Ceramics stack 4 and second piezoelectric element 6, and the upper end of first piezoelectric element 4 and the second piezoelectric element 6 is logical
It crosses screw 6 to be fixed in the frame 8, the lower end of first piezoelectric element 4 and the second piezoelectric element 5 is supported respectively
Touching is connected to the center two sides of the upper end of the mounting portion, folded by first piezoelectric element 4 and the second piezoelectric ceramics
The expansion respectively and contraction of heap 5, it is described amplification lever 3 lever portion around the mounting portion pivot so that striker
The 31 compressings realization of needle body 14 slides up and down movement.The amplification lever 3 uses straight round hinge, compact-sized, has higher
Rotating accuracy.The two sides of the amplification lever 3 are equipped with grooving, are arranged in the lever portion by triangular-arc cavity, are mitigating
While quality, rigidity is not affected.
It further include having heating device 1, the heating device 1 is installed on the gum outlet side of the nozzle mechanism.When glue is viscous
It when spending larger, is not easy to be sprayed under room temperature, heating device just plays very crucial effect, and wherein heating device 1 includes mounting base
With the heating rod, temperature sensor and circuit board being installed in the mounting base.
Hoisting mechanism is also equipped in the frame 8, the hoisting mechanism includes mounting plate 11 and guide post 12, wherein institute
The quantity for stating guide post 12 is three, and three guide post 12 distributions in equilateral triangle, three guide posts 12 are mounted on described
On mounting plate 11, also triangular shape, stable structure are reliable for the mounting plate 11；The upper end of the guide post 12 connects the installation
Plate 11, the lower end of the guide post 12 are stretched out outside the frame 8 and connect the nozzle mechanism and heating device, be allowed to form one
It is whole；The upper end of the frame 8 rotates and upgrades screw 10 by what spring washer 9 was equipped with connection plate, passes through and adjusts institute
State and rotate and upgrade screw 10 so that the mounting plate 11 together with the guide post 12 can slide downward, to make frame 8 and nozzle machine
Gap between structure increases, nozzle mechanism easy to clean for glue runner；In the frame 8 the top of the nozzle needle mechanism also
The stroke baffle 13 of the card shelves mounting plate 11 is installed, guarantees the movement travel of mounting plate 11 and nozzle mechanism, while also being prevented
Only mounting plate 11 breaks nozzle needle mechanism.
Dumping mouth is offered on the nozzle frame 17, the dumping mouth is connected to the runner, installs on the dumping mouth
There is closure to fill in.
As shown in figure 3, the amplification lever 3 uses straight round hinge, and it is compact-sized, there is higher rotating accuracy.It is described
The two sides for amplifying lever 3 are equipped with grooving, and while mitigating quality, rigidity is not affected.The amplification lever 3 by with
The interconnecting piece and lever portion composition, the interconnecting piece and lever portion one end structure in the shape of an " I " of piezoelectric ceramic actuator connection
It makes, setting can effectively improve rigid by triangular-arc cavity in the lever portion, and mitigate weight.
As shown in figure 4,8 two sides of frame are equipped with gusset 82, greatly improve the overall stiffness of frame and intensity, it can be with
Reduce system stress deformation.Its left side is equipped with four mounting holes of vertical and horizontal, and such nozzle mechanism just very easily can be with
It is installed in both direction.
As shown in figure 5, the contact surface of striker and needle body 14 is substantially flush with amplification amplification 3 center of lever, error is in +/- 5S
Within (S is nozzle needle stroke), for such nozzle needle by transverse load very little, running accuracy is high, and the displacement of Z axis has obtained good guarantor
Card, injection valve overall performance are improved.
Injection valve working principle：When injection valve does not work, since the injection valve is designed as open in usual, that is, nozzle needle machine when assembling
Structure and nozzle 20 and not in contact with needing to give injection valve " standby " order at this time, the second piezoelectric element 5 can lead to 120V at this time
Nozzle needle mechanism and nozzle 20 can be closed by the power of the voltage of high level, generation.When injection valve works, the second piezoelectric element 5
Input voltage is the constant pressure of 24V, and driving nozzle needle generates small displacement downwards and contacts with nozzle 20, is adjusted at this time for glue air pressure
0.1MPa or more forces glue to enter for glue runner, and the pulse voltage that then the first piezoelectric element 4 is passed through 0-110V (can
Adjust frequency on the control panel and duty ratio, highest frequency be generally 50%-60% up to 300Hz, duty ratio), at it
When high level 110V, power output overcomes system resistance (enlarger hinge resistance, spiral compression spring resistance etc.), and compresses
Second piezoelectric element 5, driving nozzle needle move upwards, during this glue can by being supplemented into for Jiao Kou for glue runner,
Then when piezoelectric element 4 is in low level 0V, nozzle needle the second piezoelectric element 5 24V generate active force and
Under the restoring force of system (restoring force, the restoring force of spiral compression spring etc. of amplification lever 3), it can move downward, thus can
The glue of extruding jet nozzle bore portion makes to form high pressure between nozzle needle mechanism and nozzle 20, and the needle body 14 of nozzle needle collides nozzle 20
Glue can be cut off in a flash, and final glue is ejected on substrate by one after another drop of.So under periodically pulsing voltage, injection valve
Glue drop can constantly be sprayed.It when stopping working, cleans for convenience, gives " dumping " order, so that it may by residue glue from dumping mouth
Naturally it flows out, in favor of subsequent cleaning.
Injection valve in actual use, certain glues remain in after nozzle segment or guide sleeve part to
Spray orifice is blocked, so injection valve needs cleaning easy to disassemble.As shown in fig. 6, designed injection valve only needs to pass through elevator
Structure is by nozzle mechanism slide downward H stroke, so that it may all take out nozzle mechanism, then carry out to each part of nozzle mechanism
Cleaning, installing again after cleaning can continue to use, and the cleaning process of injection valve does not need disassembly amplification lever, frame and pressure
Electroceramics stacks equal parts, thus designed injection valve unpick and wash it is very convenient.
As described above, the only preferred embodiment of the utility model is real when that cannot limit the utility model with this
The range applied, i.e., generally according to simple equivalence changes made by present utility model application the scope of the patents and utility model description with
Modification all still belongs in the range of the utility model patent covers.
Claims (10)
1. a kind of injection valve, which is characterized in that including frame and the nozzle mechanism for being installed on the frame lower end, in the frame
Sequentially connected piezoelectric ceramic actuator, amplification lever and nozzle needle mechanism are installed, the nozzle needle mechanism includes guide sleeve and needle
The top that the frame is placed at gum outlet is stretched out in body, the lower end of the guide sleeve, and the needle body is sheathed on the guide sleeve
Nozzle in nozzle mechanism described in the lower end aligned of the interior and described needle body is also equipped with the connection needle body on the guide sleeve
Reset spring, the piezoelectric ceramic actuator connects the upper end of the needle body by the amplification lever, and drives the needle body
It moves downward to block the nozzle.
2. a kind of injection valve according to claim 1, which is characterized in that the nozzle mechanism includes pedestal, the pedestal
It is interior to be equipped with for glue runner, for glue runner one end be equipped with upward for Jiao Kou, be equipped with plastic emitting directed downwardly for the other end of glue runner
Mouthful, the nozzle is mounted at the gum outlet.
3. a kind of injection valve according to claim 1, which is characterized in that one end of the amplification lever is equipped with " work " shape
Mounting portion, the bottom end of the mounting portion is fixed in the frame by screw, and the piezoelectric ceramic actuator includes first
The upper end of piezoelectric element and the second piezoelectric element, first piezoelectric element and the second piezoelectric element is logical
It crosses screw to be fixed in the frame, the lower end of first piezoelectric element and the second piezoelectric element company of conflict respectively
It is connected to the upper end two sides of the mounting portion.
4. a kind of injection valve according to claim 3, which is characterized in that the amplification lever is equipped with the grooving of hollow out.
5. a kind of injection valve according to claim 3, which is characterized in that the other end of the amplification lever is equipped with and can press
Compel the striker of the needle body upper end, the lower end surface of the striker and the center of the mounting portion are located at same level.
6. a kind of injection valve according to claim 1, which is characterized in that it further include having heating device, the heating device
It is installed on the gum outlet side of the nozzle mechanism.
7. a kind of injection valve according to claim 1, which is characterized in that be also equipped with hoisting mechanism, institute in the frame
Stating hoisting mechanism includes mounting plate and guide post, and the upper end of the guide post connects the mounting plate, and institute is stretched out in the lower end of the guide post
It is outer and connect the nozzle mechanism to state frame, what the upper end of the frame was equipped with the connection mounting plate rotates and upgrades screw,
By rotating and upgrading screw described in adjusting, so that the mounting plate can slide downward together with the guide post.
8. a kind of injection valve according to claim 7, which is characterized in that in the top of the nozzle needle mechanism in the frame
It is also equipped with the stroke baffle of the card shelves mounting plate.
9. a kind of injection valve according to claim 7, which is characterized in that the quantity of the guide post is three, described in three
Guide post distribution triangular in shape.
10. a kind of injection valve according to claim 2, which is characterized in that offer dumping mouth, the row on the pedestal
Jiao Kou is connected to runner, and closure plug is equipped on the dumping mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820112160.9U CN208161939U (en) | 2018-01-23 | 2018-01-23 | A kind of injection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820112160.9U CN208161939U (en) | 2018-01-23 | 2018-01-23 | A kind of injection valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208161939U true CN208161939U (en) | 2018-11-30 |
Family
ID=64387445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820112160.9U Expired - Fee Related CN208161939U (en) | 2018-01-23 | 2018-01-23 | A kind of injection valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208161939U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108144789A (en) * | 2018-01-23 | 2018-06-12 | 肖静 | A kind of injection valve |
| CN110918374A (en) * | 2019-11-18 | 2020-03-27 | 沈阳工业大学 | Ultra-micro precise glue dispensing mechanism driven by giant magnetostriction |
-
2018
- 2018-01-23 CN CN201820112160.9U patent/CN208161939U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108144789A (en) * | 2018-01-23 | 2018-06-12 | 肖静 | A kind of injection valve |
| CN108144789B (en) * | 2018-01-23 | 2024-01-30 | 广州市景泰科技有限公司 | Injection valve |
| CN110918374A (en) * | 2019-11-18 | 2020-03-27 | 沈阳工业大学 | Ultra-micro precise glue dispensing mechanism driven by giant magnetostriction |
| CN110918374B (en) * | 2019-11-18 | 2021-04-23 | 沈阳工业大学 | Ultra-micro precise glue dispensing mechanism driven by giant magnetostriction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |