CN207446625U - A kind of micro high frequency jet valve for low viscosity fluid - Google Patents
A kind of micro high frequency jet valve for low viscosity fluid Download PDFInfo
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- CN207446625U CN207446625U CN201721530066.7U CN201721530066U CN207446625U CN 207446625 U CN207446625 U CN 207446625U CN 201721530066 U CN201721530066 U CN 201721530066U CN 207446625 U CN207446625 U CN 207446625U
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Abstract
A kind of micro high frequency jet valve for low viscosity fluid, including nozzle, screw-on cap, pedestal, body, striker, general plug sealing assembly, screw swivel nut, spring leaf, lower seat, piezoelectric stack and the seat of honour, nozzle is fixed on pedestal by screw-on cap, pedestal is fixedly mounted below body, glue feeding channel and plastic emitting passage are provided in pedestal, plastic emitting passage interlinks with nozzle, piezoelectric stack is mounted on by lower seat on striker, striker, which is sleeved on, to be screwed in swivel nut and general plug sealing assembly, piezoelectric stack, striker and nozzle coaxial arrangement, form the drive system of microdot adhesive dispenser, screwing, spring leaf is set between swivel nut and striker.The utility model type of drive uses Piezoelectric Driving, can realize high-frequency dispensing, and can change the deflection of piezoelectric material by changing the size of voltage, realizes the dispensing of different size dispensing amount, structure more simplifies, is small, dispensing precision is high.
Description
Technical field
Micro-precision the utility model is related to microelectronics Packaging, low viscosity fluid distributes field, and in particular to Yi Zhongzhen
To the micro high frequency jet valve of low viscosity fluid.
Background technology
Fine engineering field technology development was very rapid in recent years, due to continuously improving for various superfinishing micro-processing technologies
And sustainable development, the body of the precision components in the fields such as bioelectronics, chemistry, MEMS MEMS, microelectronic element
Product becomes less and less, and requirement of the micro assemby with being coupled encapsulation technology simultaneously for these precision components is also higher and higher,
Micro dispensing technology is one of main assembly method in product microassembly system, so micro dispensing technology is for biological electricity
The development in the fields such as son, chemistry, MEMS MEMS, microelectronics Packaging plays crucial effect.
Main dispensing mode is such as in the field of business dispensing at present：Time-pressure-type dispensing, plunger type dispensing, screw point
Glue, the dispensing of pneumatic actuation injecting type and Piezoelectric Driving hit injecting type dispensing etc., these dispensing line widths it is most of 200um with
On, it is unable to reach 100um (micron) below, glue is substantially again uL (microlitre) grade and nL (nanoliter) grade, is unable to reach PL (picoliters)
Grade, and the injection frequency of injection valve all in below 500Hz, seriously limits the development of fine engineering technology in the market.
Utility model content
In order to overcome above-mentioned the shortcomings of the prior art, the utility model provides a kind of for the micro- of low viscosity fluid
High frequency jet valve is measured, dispensing line width can be made to reach 100um (micron) below, glue weighs to PL (picoliters) grade, realizes high frequency, micro-
The injection dispensing operation of amount.
Technical solution is used by the utility model：
A kind of micro high frequency jet valve for low viscosity fluid, it is characterized in that：Including nozzle, screw-on cap, pedestal, sheet
Body, striker, it is general plug sealing assembly, screw swivel nut, spring leaf, lower seat, piezoelectric stack and the seat of honour, nozzle is by /V section and main paragraph group
Into, taper glue spraying through hole is provided with by /V section to main paragraph in nozzle, screw-on cap is a hollow nut of top closure formula,
The internal thread that is screwed on is provided in the endoporus of screw-on cap, through hole, aperture and the nozzle body section of through hole are provided in screw-on cap top end face
Diameter it is corresponding, the diameter of /V section is more than the aperture of through hole, and nozzle mounting blocks, nozzle installation are provided in the lower end of pedestal
The outer diameter of block is corresponding with the endoporus aperture of screw-on cap, is provided in the outer surface of nozzle mounting blocks and to be screwed on screw-on cap endoporus
The matched external screw thread of internal thread, through through hole, lower face and the screw-on cap top inner side face of /V section connect the main paragraph of nozzle
It touches, screw-on cap is screwed in by the internal thread fixation that is screwed on the external screw thread of nozzle mounting blocks, and upper surface and the nozzle of /V section are pacified
The lower face contact of block is filled, glue feeding channel, plastic emitting passage and mounting hole are provided in pedestal, glue feeding channel is communicated with plastic emitting passage
Even, plastic emitting passage passes through nozzle mounting blocks, and taper glue spraying through hole interlinks with plastic emitting passage, taper glue spraying through hole and plastic emitting passage
Coaxially, general plug sealing assembly is fixedly mounted in mounting hole, and body is fixedly mounted on pedestal, and swivel nut installation is provided in body
Hole, striker mounting hole and cavity, swivel nut mounting hole are arranged on the top of mounting hole, and internal thread is provided in swivel nut mounting hole,
Be provided in the outer surface for screwing swivel nut with the matched external screw thread of swivel nut mounting hole internal thread, screw swivel nut and be connected through a screw thread
It is fixedly mounted in swivel nut mounting hole, general plug sealing assembly is coaxially disposed with swivel nut is screwed, and in general plug sealing assembly and screws swivel nut
Center is provided with mounting hole, and striker includes epimere, stage casing and hypomere, and the diameter of epimere is more than the diameter in stage casing, and the diameter in stage casing is big
In the diameter of hypomere, the hypomere of striker is stretched into plastic emitting passage with the center mounting hole for screwing swivel nut through general plug sealing assembly, hit
The end face seal cooperation of the bottom of pin and the taper glue spraying through hole of nozzle, the stage casing of striker, which is arranged on, to be screwed in swivel nut, striker
Epimere is arranged in the striker mounting hole of body, and bullet is provided between the lower face of striker epimere and the upper surface for screwing swivel nut
Reed, piezoelectric stack are arranged in the cavity of body, and piezoelectric stack is fixedly mounted between lower seat and the seat of honour, and lower seat is fixedly mounted
On the upper surface of striker, the seat of honour is fixedly mounted on body top inner side face, piezoelectric stack, striker and nozzle coaxial arrangement.
Further, it is provided with sealing ring between pedestal and general plug sealing assembly.
Further, nozzle mounting base is provided between nozzle and pedestal.
Further, it is provided with sealing ring between nozzle and nozzle mounting base.
Further, pedestal and body are fixedly mounted by screw.
The operation principle of the utility model：By adjusting the pressure parameter of liquid-supplying system, the glue in packing element is made to continue surely
Surely this point glue equipment is inputted, glue enters plastic emitting passage by glue feeding channel, and when not inputting piezoelectricity control signal, glue is in point
Stable state is in adhesive dispenser.When piezo controller output cyclic pulse signal, and signal is passed into piezoelectric stack, pressed
Electricity is stacked occurs inverse piezoelectric effect under voltage effect, and then generates mechanical-stretching deformation, and mechanically deform passes to striker, striker
It can move up and down with the dilatation of piezoelectric stack, striker impact nozzle realizes dispensing process, replys striker by spring leaf
It is simple in structure to the top state, and can preferably realize the micro ejection function of high frequency for low-viscosity (mobile) liquid.
The utility model type of drive uses Piezoelectric Driving, and piezoelectric material has higher frequency response, small, can be with
It realizes high-frequency dispensing, and the deflection of piezoelectric material can be changed by changing the size of voltage, realize different size
The dispensing of dispensing amount.Piezoelectric stack, striker, nozzle are coaxial, ensure the concentricity of dispenser system, preferably complete micro high frequency
Ejection function, and it is easy for installation；It in striker and screws and is provided with spring leaf between swivel nut, spring leaf plays piezoelectric stack preload
Effect, and upper end state of the striker in the case where piezoelectric stack is in low level or powering-off state positioned at striker can be made；Striker
Upper end is arranged in the striker mounting hole of body, and striker mounting hole can play fine guiding role when striker quickly moves；
Spring leaf between striker and the swivel nut that is screwed on to play the role of the preload to piezoelectric stack, and can make striker in piezoelectricity
The upper end state for being located at striker under low level or powering-off state is stacked, avoids conventional springs, using spring leaf, is effectively contracted
Short injection valve height, makes structure more simplify.The utility model is simple in structure, concentricity is good, easy for installation, adds piezo stack
Response speed between heap and striker so as to add injection frequency, can make injection frequency reach more than 1500Hz, with injection
The promotion of frequency, spray site amount realize high frequency, micro injection dispensing operation up to PL (picoliters) grade is reached.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the structure diagram of nozzle；
Fig. 3 is the structure diagram of screw-on cap；
Fig. 4 is the structure diagram of pedestal；
Fig. 5 is the structure diagram of body；
Fig. 6 is the structure diagram of striker；
In figure：1- nozzles；2- screw-on caps；3- pedestals；4- bodies；5- strikers；The general plug sealing assemblies of 6-；7- screws swivel nut；8-
Spring leaf；Seat under 9-；10- piezoelectric stacks；The 11- seats of honour；12- /V sections；13- main paragraphs；14- taper glue spraying through holes；15- nozzles
Mounting base；21- endoporus；22- through holes；31- nozzle mounting blocks；32- glue feeding channels；33- plastic emitting passages；34- mounting holes；41- spiral shells
Cover mounting hole；42- striker mounting holes；43- cavitys；51- epimeres；52- stage casings；53- hypomeres.
Specific embodiment
Specific embodiment of the present utility model is exemplified below：
A kind of Piezoelectric Driving type micro point glue equipment, as shown in Fig. 1~Fig. 6, a kind of micro height for low viscosity fluid
Frequency injection valve, it is characterized in that：Including nozzle 1, screw-on cap 2, pedestal 3, body 4, striker 5, it is general plug sealing assembly 6, screw swivel nut 7,
Spring leaf 8, lower seat 9, piezoelectric stack 10, the seat of honour 11 and nozzle mounting base 15, nozzle 1 are made of /V section 12 and main paragraph 13,
Taper glue spraying through hole 14 is provided with by /V section 12 to main paragraph 13 in nozzle 1, screw-on cap 2 is a hollow spiral shell of top closure formula
Cap is provided with the internal thread that is screwed in the endoporus 21 of screw-on cap 2, and through hole 22, the aperture of through hole 22 are provided in 2 top end face of screw-on cap
Corresponding with the diameter of 1 main paragraph 13 of nozzle, the diameter of /V section 12 is more than the aperture of through hole 22, is set in the lower end of pedestal 3
There are nozzle mounting blocks 31, the outer diameter of nozzle mounting blocks 31 is corresponding with 21 aperture of endoporus of screw-on cap 2, in nozzle mounting blocks 31
Outer surface is provided with the matched external screw thread of the internal thread that is screwed on 2 endoporus 21 of screw-on cap, and the main paragraph 13 of nozzle 1 passes through through hole
22, the lower face of /V section 12 is contacted with 2 top inner side face of screw-on cap, and screw-on cap 2 is screwed in spray by the internal thread fixation that is screwed on
On the external screw thread of mouth mounting blocks 31, the upper surface of /V section 12 is contacted with the lower face of nozzle mounting blocks 31, nozzle mounting base 15
It is arranged between nozzle 1 and pedestal 3, glue feeding channel 32, plastic emitting passage 33 and mounting hole 34, glue feeding channel is provided in pedestal 3
32 interlink with plastic emitting passage 33, and plastic emitting passage 33 passes through nozzle mounting blocks 31, taper glue spraying through hole 14 and 33 phase of plastic emitting passage
Lead to, taper glue spraying through hole 14 is coaxial with plastic emitting passage 33, and general plug sealing assembly 6 is fixedly mounted in mounting hole 34, and body 4 passes through
Screw is fixedly mounted on the base 3, and swivel nut mounting hole 41, striker mounting hole 42 and cavity 43, swivel nut installation are provided in body 4
Hole 41 is arranged on the top of mounting hole 34, and internal thread is provided in swivel nut mounting hole 41, is set in the outer surface for screwing swivel nut 7
Have with the matched external screw thread of 41 internal thread of swivel nut mounting hole, screw swivel nut 7 be connected through a screw thread be fixedly mounted on swivel nut installation
It in hole 41, general plug sealing assembly 6 and screws swivel nut 7 and is coaxially disposed, installation is provided in general plug sealing assembly 6 and the center for screwing swivel nut 7
Hole, striker 5 include epimere 51, stage casing 52 and hypomere 53, and the diameter of epimere 51 is more than the diameter in stage casing 52, and the diameter in stage casing 52 is big
In the diameter of hypomere 53, the hypomere 53 of striker 5 stretches into plastic emitting with the center mounting hole for screwing swivel nut 7 through general plug sealing assembly 6 and leads to
In road 33, the bottom of striker 5 and the end face seal of the taper glue spraying through hole 14 of nozzle 1 coordinate, and the stage casing of striker 5, which is arranged on, to be screwed
In swivel nut 7, the epimere 51 of striker 5 is arranged in the striker mounting hole 42 of body 4, in the lower face of 5 epimere 51 of striker with screwing
Spring leaf 8 is provided between the upper surface of swivel nut 7, piezoelectric stack 10 is arranged in the cavity 43 of body 4, and piezoelectric stack 10 is fixed
Between lower seat 9 and the seat of honour 11, lower seat 9 is fixedly mounted on the upper surface of striker 5, and the seat of honour 11 is fixedly mounted on body 4
On top inner side face, piezoelectric stack 10, striker 5 and nozzle 1 are coaxially disposed.
Claims (5)
1. a kind of micro high frequency jet valve for low viscosity fluid, it is characterized in that：Including nozzle (1), screw-on cap (2), pedestal
(3), body (4), striker (5), it is general plug sealing assembly (6), screw swivel nut (7), spring leaf (8), lower seat (9), piezoelectric stack (10)
With the seat of honour (11), nozzle (1) is made of /V section (12) and main paragraph (13), by /V section (12) to main body in nozzle (1)
Section (13) is provided with taper glue spraying through hole (14), and screw-on cap (2) is a hollow nut of top closure formula, in the interior of screw-on cap (2)
Hole is provided with the internal thread that is screwed in (21), and through hole (22), the aperture of through hole (22) and nozzle are provided in screw-on cap (2) top end face
(1) diameter of main paragraph (13) is corresponding, and the diameter of /V section (12) is more than the aperture of through hole (22), in the lower end of pedestal (3)
Nozzle mounting blocks (31) are provided with, the outer diameter of nozzle mounting blocks (31) is corresponding with endoporus (21) aperture of screw-on cap (2), is spraying
The outer surface of mouth mounting blocks (31) is provided with and the matched external screw thread of the internal thread that is screwed on of screw-on cap (2) endoporus (21), nozzle
(1) main paragraph (13) passes through through hole (22), and the lower face of /V section (12) contacts with screw-on cap (2) top inner side face, is screwed on
Cap (2) is screwed in by the internal thread fixation that is screwed on the external screw thread of nozzle mounting blocks (31), the upper surface of /V section (12) and spray
The lower face contact of mouth mounting blocks (31), glue feeding channel (32), plastic emitting passage (33) and mounting hole are provided in pedestal (3)
(34), glue feeding channel (32) interlinks with plastic emitting passage (33), and plastic emitting passage (33) passes through nozzle mounting blocks (31), taper glue spraying
Through hole (14) interlinks with plastic emitting passage (33), and taper glue spraying through hole (14) and plastic emitting passage (33) are coaxially, general to fill in sealing assembly (6)
It is fixedly mounted in mounting hole (34), body (4) is fixedly mounted on pedestal (3), and swivel nut mounting hole is provided in body (4)
(41), striker mounting hole (42) and cavity (43), swivel nut mounting hole (41) are arranged on the top of mounting hole (34), are installed in swivel nut
Internal thread is provided in hole (41), is provided in the outer surface for screwing swivel nut (7) and is engaged with swivel nut mounting hole (41) internal thread
External screw thread, screw swivel nut (7) and be connected through a screw thread and be fixedly mounted in swivel nut mounting hole (41), general plug sealing assembly (6) and rotation
Tight swivel nut (7) coaxial arrangement is provided with mounting hole in general plug sealing assembly (6) and the center for screwing swivel nut (7), and striker (5) includes upper
Section (51), stage casing (52) and hypomere (53), the diameter of epimere (51) are more than the diameter of stage casing (52), and the diameter of stage casing (52) is more than
The diameter of hypomere (53), the hypomere (53) of striker (5) are stretched through the general center mounting hole filled in sealing assembly (6) and screw swivel nut (7)
Enter in plastic emitting passage (33), the bottom of striker (5) and the end face seal of the taper glue spraying through hole (14) of nozzle (1) coordinate, striker
(5) stage casing, which is arranged on, to be screwed in swivel nut (7), and the epimere (51) of striker (5) is arranged on the striker mounting hole (42) of body (4)
It is interior, spring leaf (8), piezoelectric stack are provided between the lower face of striker (5) epimere (51) and the upper surface for screwing swivel nut (7)
(10) it is arranged in the cavity (43) of body (4), piezoelectric stack (10) is fixedly mounted between lower seat (9) and the seat of honour (11), under
Seat (9) is fixedly mounted on the upper surface of striker (5), and the seat of honour (11) are fixedly mounted on body (4) top inner side face, piezo stack
Heap (10), striker (5) and nozzle (1) coaxial arrangement.
2. the micro high frequency jet valve of low viscosity fluid is directed to according to claim 1, it is characterized in that：Pedestal (3) with it is general
Sealing ring is provided between plug sealing assembly (6).
3. the micro high frequency jet valve of low viscosity fluid is directed to according to claim 1, it is characterized in that：At nozzle (1) and bottom
Nozzle mounting base (15) is provided between seat (3).
4. the micro high frequency jet valve of low viscosity fluid is directed to according to claim 3, it is characterized in that：In nozzle (1) and spray
Mouth mounting base is provided with sealing ring between (15).
5. the micro high frequency jet valve of low viscosity fluid is directed to according to claim 1, it is characterized in that：Pedestal (3) and body
(4) it is fixedly mounted by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721530066.7U CN207446625U (en) | 2017-11-16 | 2017-11-16 | A kind of micro high frequency jet valve for low viscosity fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721530066.7U CN207446625U (en) | 2017-11-16 | 2017-11-16 | A kind of micro high frequency jet valve for low viscosity fluid |
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| Publication Number | Publication Date |
|---|---|
| CN207446625U true CN207446625U (en) | 2018-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721530066.7U Active CN207446625U (en) | 2017-11-16 | 2017-11-16 | A kind of micro high frequency jet valve for low viscosity fluid |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109395968A (en) * | 2018-11-12 | 2019-03-01 | 罗泽英 | Micro screw rod glue dispensing valve |
| CN109604106A (en) * | 2018-10-15 | 2019-04-12 | 北京派和科技股份有限公司 | Straight line micro-displacement for dispensing injection valve adjusts locking mechanism |
| CN110052357A (en) * | 2019-05-15 | 2019-07-26 | 哈尔滨工业大学 | A kind of adjustable piezoelectric micromotor spraying mechanism of valve applied to high viscosity fluid injection |
| CN110102417A (en) * | 2019-05-24 | 2019-08-09 | 业成科技（成都）有限公司 | Injection valve and spot gluing equipment |
| TWI704960B (en) * | 2018-09-26 | 2020-09-21 | 日商日本電產增成股份有限公司 | Liquid coating device |
| TWI704962B (en) * | 2018-09-26 | 2020-09-21 | 日商日本電產增成股份有限公司 | Liquid coating device |
| CN111957519A (en) * | 2020-08-31 | 2020-11-20 | 东莞理工学院 | Impact buffering type injection device and injection method |
| CN114029582A (en) * | 2021-12-03 | 2022-02-11 | 安兴精密(深圳)有限公司 | Piezoelectric solder paste valve without glue hanging and glue overflowing based on high-frequency solder paste dispensing |
-
2017
- 2017-11-16 CN CN201721530066.7U patent/CN207446625U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI704960B (en) * | 2018-09-26 | 2020-09-21 | 日商日本電產增成股份有限公司 | Liquid coating device |
| TWI704962B (en) * | 2018-09-26 | 2020-09-21 | 日商日本電產增成股份有限公司 | Liquid coating device |
| CN109604106A (en) * | 2018-10-15 | 2019-04-12 | 北京派和科技股份有限公司 | Straight line micro-displacement for dispensing injection valve adjusts locking mechanism |
| CN109395968A (en) * | 2018-11-12 | 2019-03-01 | 罗泽英 | Micro screw rod glue dispensing valve |
| CN110052357A (en) * | 2019-05-15 | 2019-07-26 | 哈尔滨工业大学 | A kind of adjustable piezoelectric micromotor spraying mechanism of valve applied to high viscosity fluid injection |
| CN110052357B (en) * | 2019-05-15 | 2021-06-15 | 哈尔滨工业大学 | Valve-adjustable piezoelectric micro-spraying mechanism applied to high-viscosity fluid spraying |
| CN110102417A (en) * | 2019-05-24 | 2019-08-09 | 业成科技（成都）有限公司 | Injection valve and spot gluing equipment |
| CN111957519A (en) * | 2020-08-31 | 2020-11-20 | 东莞理工学院 | Impact buffering type injection device and injection method |
| CN114029582A (en) * | 2021-12-03 | 2022-02-11 | 安兴精密(深圳)有限公司 | Piezoelectric solder paste valve without glue hanging and glue overflowing based on high-frequency solder paste dispensing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215021 Suzhou Industrial Park, Suzhou, Jiangsu Province, water Road No. 388 Patentee after: Suzhou GaoKai Precision Technology Co., Ltd Address before: 215021 Suzhou Industrial Park, Suzhou, Jiangsu Province, water Road No. 388 Patentee before: SUZHOU ZHONGCHU KEGONG PRECISION TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |