CN110548649A - Device for correcting pretightening force between firing pin and nozzle and piezoelectric injection valve thereof - Google Patents
Device for correcting pretightening force between firing pin and nozzle and piezoelectric injection valve thereof Download PDFInfo
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- CN110548649A CN110548649A CN201910904417.3A CN201910904417A CN110548649A CN 110548649 A CN110548649 A CN 110548649A CN 201910904417 A CN201910904417 A CN 201910904417A CN 110548649 A CN110548649 A CN 110548649A
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- 238000010304 firing Methods 0.000 title claims abstract description 40
- 238000002347 injection Methods 0.000 title claims abstract description 21
- 239000007924 injection Substances 0.000 title claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000001105 regulatory effect Effects 0.000 claims description 29
- 230000036316 preload Effects 0.000 claims description 16
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 230000001915 proofreading effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000004100 electronic packaging Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0225—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work characterised by flow controlling means, e.g. valves, located proximate the outlet
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The invention relates to the technical field of piezoelectric injection valves, in particular to a device for correcting pretightening force between a firing pin and a nozzle, which comprises: the first adjusting mechanism is provided with a pre-tightening piece, an upper adjusting block and a lower adjusting block which are matched with each other; the invention skillfully utilizes the first adjusting mechanism to roughly adjust the horizontal position of the lever so as to facilitate the assembly of the piezoelectric actuator, and is matched with the second adjusting mechanism to accurately and minutely adjust the position of the lever subsequently, so as to adjust the pretightening force between the firing pin and the nozzle, and can avoid the problem that the piezoelectric actuator is too loose or too tight during adjustment; therefore, after the nozzle is installed, the nozzle can be adapted to the nozzle at the current installation position by driving the striker to move, the installation position of the nozzle does not need to be accurately mastered, the assembly difficulty of the nozzle is greatly reduced, and the maintenance efficiency of the nozzle is improved.
Description
Technical Field
The invention relates to the technical field of piezoelectric injection valves, in particular to a device for correcting pretightening force between a firing pin and a nozzle.
Background
With the rapid development of the electronic industry, the requirement on electronic packaging is higher and higher, and aiming at the high-requirement electronic packaging technology, the non-contact injection valve is more and more widely applied in the field of electronic packaging with the advantages of high efficiency, high precision and the like, and the piezoelectric stack with high response speed and high precision is used as a core driving component of the non-contact piezoelectric injection valve and is also widely applied in the non-contact injection valve;
As is well known, the main structure of a piezoelectric valve is composed of a valve body, a piezoelectric actuator arranged in the valve body, an amplifier, a flow channel assembly and the like, and the main principle is as follows: amplifying the deformation of the piezoelectric ceramic in the piezoelectric actuator after being electrified by using an amplifier through a lever principle, and transmitting the deformation to a jetting collision rod (collision pin) in the runner assembly, so that the glue solution in the runner assembly is jetted out by using a jetting push rod;
However, when the nozzle is mounted on the piezoelectric injection valve again after being cleaned, the relative position between the striker and the nozzle must be strictly ensured to meet the requirement of high-precision dispensing and dispensing consistency, for example, when the nozzle is mounted on the piezoelectric injection valve again through a locking cap, the screwing position of the locking cap must be grasped, so that the mounting difficulty of the nozzle after being cleaned is increased, and once the nozzle is mounted to the relative position between the nozzle and the striker, the glue sprayed by the nozzle is deviated, and the dispensing precision is affected.
Disclosure of Invention
the technical problem to be solved by the invention is as follows: in order to solve the problem that the loading position of the nozzle is difficult to grasp when the nozzle is reloaded into the piezoelectric injection valve in the prior art, so that the pretightening force between the firing pin and the nozzle is easy to deviate and the dispensing precision is affected, a device for correcting the pretightening force between the firing pin and the nozzle and a dispenser comprising the device for correcting the pretightening force between the firing pin and the nozzle are provided.
The technical scheme adopted by the invention for solving the technical problems is as follows: a device for correcting pretightening force between a firing pin and a nozzle, the device for correcting pretightening force between the firing pin and the nozzle is used for a piezoelectric injection valve, the piezoelectric injection valve comprises a valve body, a piezoelectric actuator arranged in the valve body, the firing pin slidably mounted on the valve body and the nozzle positioned below the valve body, and the piezoelectric actuator drives the firing pin to feed to the nozzle after amplifying driving force through a lever, the device comprises:
The first adjusting mechanism is provided with a pre-tightening piece, an upper adjusting block and a lower adjusting block which are matched with each other, the pre-tightening piece is limited on the side of the upper adjusting block and can push the upper adjusting block from the side, and the lower adjusting block drives the piezoelectric actuator to move downwards;
and the second adjusting mechanism is provided with an adjusting rod, the adjusting rod is in threaded connection with the valve body, the bottom end of the adjusting rod is abutted to the upper surface of the upper adjusting block, and when the adjusting rod pushes the upper adjusting block to move downwards, the lower adjusting block drives the piezoelectric actuator to move downwards.
In the scheme, the horizontal position of the lever is roughly adjusted by utilizing the first adjusting mechanism so as to facilitate the assembly of the piezoelectric actuator, and the position of the lever is accurately and minutely adjusted by matching with the second adjusting mechanism, so that the pretightening force between the firing pin and the nozzle is adjusted, and the problem that the piezoelectric actuator is too loose or too tight during adjustment can be avoided.
Further, the slide opening has been seted up to the side of valve body, go up the regulating block and all set up in the slide opening with lower regulating block, the lower surface of going up the regulating block and the upper surface contact of lower regulating block, the lower surface of going up the regulating block and the upper surface of lower regulating block are the inclined plane, the pretension piece butt is at the left surface of last regulating block, the right flank butt of lower regulating block is at the bottom of the hole of slide opening, the lower surface of lower regulating block and piezoelectric actuator's head end opposition.
Further, the slope slopes upward from left to right.
When the adjusting rod is completely loosened to a large extent, the pressing force of the piezoelectric actuator is greatly reduced, and if the piezoelectric actuator is charged and discharged at high frequency, the piezoelectric actuator is deflected;
In view of this, in order to prevent the piezoelectric actuator from being too loose during adjustment, further, the upper inner wall of the sliding hole is a limiting surface for limiting the upper adjusting block upwards, and a gap is left between the lower surface of the lower adjusting block and the lower inner wall of the sliding hole;
This scheme utilization is when last regulating block and the spacing face contact of slide opening top, goes up the regulating block and can be restricted by spacing face, can not upward movement again to ensure that the piezoelectric actuator can not appear when adjusting in second adjustment mechanism the problem of pine excessively.
Further, the preload piece is in threaded connection with the valve body.
When the adjusting rod is excessively screwed, the piezoelectric actuator can generate larger displacement, the pressing force applied to the piezoelectric actuator is also very large, and if the piezoelectric actuator is charged and discharged at high frequency, the piezoelectric actuator is crushed, or the firing pin is crushed;
in view of this, in order to prevent the piezoelectric actuator from being over-tightened during adjustment, the adjustment rod further has a step surface for limiting the adjustment rod downwards;
according to the scheme, when the adjusting rod moves downwards until the step surface of the adjusting rod is contacted with the valve body, the step surface can prevent the adjusting rod from moving downwards continuously, so that the problem that the piezoelectric actuator is too tight when the second adjusting mechanism is adjusted is solved.
In order to prevent the adjusting rod from loosening, the valve body is further provided with two clamping arms, the adjusting rod is positioned between the two clamping arms, and a locking screw is arranged on the side of the adjusting rod and connected between the two clamping arms; the two clamping arms clamp the adjusting rod by using the locking screw, so that the adjusting rod can be prevented from loosening, and the firing pin can be ensured to work under the preset pretightening force.
a piezoelectric injection valve comprises the device for correcting the pretightening force between the firing pin and the nozzle.
the invention has the beneficial effects that: the device for correcting the pretightening force between the firing pin and the nozzle skillfully utilizes the first adjusting mechanism to roughly adjust the horizontal position of the lever so as to facilitate the assembly of the piezoelectric actuator, and is matched with the second adjusting mechanism to accurately and minutely adjust the position of the lever so as to adjust the pretightening force between the firing pin and the nozzle, and the problem that the piezoelectric actuator is too loose or too tight during adjustment can be avoided; therefore, after the nozzle is installed, the nozzle can be adapted to the nozzle at the current installation position by driving the striker to move, the installation position of the nozzle does not need to be accurately mastered, the assembly difficulty of the nozzle is greatly reduced, and the maintenance efficiency of the nozzle is improved.
drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic cross-sectional view of the apparatus for correcting preload between a firing pin and a nozzle of the present invention;
Fig. 2 is a three-dimensional schematic view of the device for correcting pretension between the striker and the nozzle according to the invention.
In the figure: 1. the valve comprises a valve body, 1-1 parts, a sliding hole, 1-11 parts, a limiting surface, 1-2 parts, a clamping arm, 2 parts, a piezoelectric actuator, 3 parts, a lever, 4 parts, a firing pin, 5 parts, a nozzle, 6 parts, a return spring, 7 parts, a pre-tightening spring, 8 parts, a pre-tightening part, 9 parts, an upper adjusting block, 10 parts, a lower adjusting block, 11 parts, an adjusting rod, 11-1 parts, a step surface, 12 parts, a fulcrum, 13 parts, a guide sleeve, 14 parts, a flow channel body, 15 parts, a locking screw, 16 parts and a locking cap.
Detailed Description
the present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams illustrating the basic structure of the present invention only in a schematic manner, and thus show only the constitution related to the present invention, and directions and references (e.g., upper, lower, left, right, etc.) may be used only to help the description of the features in the drawings. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.
example 1
As shown in fig. 1-2, a device for correcting a pre-tightening force between a striker and a nozzle, and a piezoelectric injection valve, the piezoelectric injection valve includes a valve body 1, a piezoelectric actuator 2 disposed in the valve body 1, a striker 4 slidably mounted on the valve body 1, and a nozzle 5 located below the valve body 1, the piezoelectric actuator 2 amplifies a driving force through a lever 3 and drives the striker 4 to feed to the nozzle 5, the device includes:
the first adjusting mechanism is provided with a pre-tightening piece 8, an upper adjusting block 9 and a lower adjusting block 10 which are matched with each other, the pre-tightening piece 8 is limited on the side of the upper adjusting block 9 and can push the upper adjusting block 9 from the side, so that the lower adjusting block 10 drives the piezoelectric actuator 2 to move downwards;
And the second adjusting mechanism is provided with an adjusting rod 11, the adjusting rod 11 is in threaded connection with the valve body 1, the bottom end of the adjusting rod 11 is abutted to the upper surface of the upper adjusting block 9, and when the adjusting rod 11 pushes the upper adjusting block 9 to move downwards, the lower adjusting block 10 drives the piezoelectric actuator 2 to move downwards.
Slide opening 1-1 has been seted up to valve body 1's side, go up regulating block 9 and lower regulating block 10 and all set up in slide opening 1-1, the lower surface of going up regulating block 9 and the upper surface contact of lower regulating block 10, the lower surface of going up regulating block 9 and the upper surface of lower regulating block 10 are the inclined plane, 8 butts of pretension piece are at the left surface of last regulating block 9, the right flank butt of lower regulating block 10 is at the bottom of the hole of slide opening 1-1, the lower surface of lower regulating block 10 and the head end opposition of piezoelectric actuator 2.
The slope slopes upward from left to right.
The upper inner wall of the sliding hole 1-1 is a limiting surface 1-11 used for limiting the upper adjusting block 9 upwards, and a gap is reserved between the lower surface of the lower adjusting block 10 and the lower inner wall of the sliding hole 1-1; therefore, when the upper adjusting block 9 is in contact with the limiting surface 1-11 above the sliding hole 1-1, the upper adjusting block 9 can be limited by the limiting surface 1-11 and cannot move upwards any more, and therefore the problem that the piezoelectric actuator 2 is too loose when the second adjusting mechanism is adjusted is solved.
the preload piece 8 is in threaded connection with the valve body 1.
the adjusting rod 11 is provided with a step surface 11-1 for limiting the adjusting rod downwards; therefore, when the adjusting rod 11 moves downwards until the step surface 11-1 of the adjusting rod is contacted with the valve body 1, the step surface 11-1 can prevent the adjusting rod 11 from moving downwards continuously, and the problem that the piezoelectric actuator 2 is too tight when the second adjusting mechanism is adjusted is solved.
The valve body 1 is provided with two clamping arms 1-2, the adjusting rod 11 is positioned between the two clamping arms 1-2, a locking screw 15 is arranged on the side of the adjusting rod 11, and the locking screw 15 is connected between the two clamping arms 1-2; the two clamping arms 1-2 clamp the adjusting rod 11 by using the locking screw 15, so that the adjusting rod 11 can be prevented from loosening; specifically, in the embodiment, the threaded end of the locking screw 15 can pass through one clamping arm 1-2 and is in threaded connection with the other clamping arm 1-2; it is also possible that the threaded end of the locking screw 15 simultaneously penetrates through the two clamping arms 1-2, and a nut is screwed on the locking screw 15, and the two clamping arms 1-2 are clamped by the nut and the nut of the locking screw 15.
The piezoelectric actuator 2 may be a piezoelectric ceramic component.
In order to more clearly illustrate the working principle of the present embodiment, a detailed structure of the piezoelectric injection valve is provided, which may specifically be as follows: a firing pin 4 of the piezoelectric injection valve abuts against a lever 3 through a return spring 6, the lever 3 abuts against a piezoelectric actuator 2 under the action of a pre-tightening spring 7, the lever 3 is installed in a valve body 1 through a fulcrum 12, the head end of the piezoelectric actuator 2 abuts against a lower adjusting block 10, the tail end of the piezoelectric actuator 2 abuts against the lever 3, the distance from a contact point between the firing pin 4 and the lever 3 to the fulcrum 12 is larger than the distance from the contact point between the piezoelectric actuator 2 and the lever 3 to the fulcrum 12, the firing pin 4 is located below the lever 3, the piezoelectric actuator 2 is located above the lever 3, and the firing pin 4 and the piezoelectric actuator 2 are both located on the same side of the fulcrum 12;
A guide sleeve 13 is fixed at the bottom end of the valve body 1, the firing pin 4 is arranged in the guide sleeve 13 in a sliding manner, the upper end of the reset spring 6 abuts against the firing pin 4, and the lower end of the reset spring 6 abuts against the inside of the valve body 1;
The pre-tightening spring 7 is sleeved on the outer side of the return spring 6, the upper end of the pre-tightening spring 7 abuts against the lower surface of the lever 3, and the lower end of the pre-tightening spring 7 abuts against the inside of the valve body 1.
A flow channel body 14 is fixed below the valve body 1, the nozzle 5 is arranged at the bottom end of the flow channel body 14, a locking cap 16 used for tightly pressing and fixing the nozzle 5 on the flow channel body 14 is connected to the bottom end of the flow channel body 14 in a threaded mode, the nozzle 5 is located in the locking cap 16, and the striker 4 penetrates through the flow channel body 14 and is opposite to the nozzle 5.
The working principle of the embodiment is as follows:
During assembly, the piezoelectric actuator 2 can be installed into the valve body 1 from the position of the adjusting rod 11, so that a long enough installation space is provided for the piezoelectric actuator 2; then roughly adjusting the first adjusting structure, rotating the pre-tightening piece 8 to enable the upper adjusting block 9 to drive the lower adjusting block 10 to move downwards, roughly adjusting the initial horizontal position of the lever 3 to enable the firing pin 4 and the nozzle 5 to be in a state of just contacting, and enabling no pre-tightening force to exist between the firing pin 4 and the nozzle 5; then the preload part 8 is bonded with the valve body 1 through thread glue, so that continuous adjustment cannot be carried out, and the preload part 8 is ensured not to be loosened;
The end surface of the preload piece 8 and the end surface of the upper adjusting block 9 are smooth, and the friction force between the preload piece 8 and the upper adjusting block 9 is small, so that the preload piece 8 can completely limit the left-right movement of the upper adjusting block 9, but cannot completely limit the up-down movement of the upper adjusting block 9;
The pre-tightening spring 7 transmits acting force to the upper adjusting block 9 through the lever 3, the piezoelectric actuator 2 and the lower adjusting block 10 in sequence, namely a transmission chain is formed between the pre-tightening spring 7 and the upper adjusting block 9; that is to say, when the adjusting rod 11 is unscrewed, the lever 3, the piezoelectric actuator 2, the lower adjusting block 10 and the upper adjusting block 9 will make the upper adjusting block 9 overcome the friction force between the upper adjusting block and the pretensioning member 8 under the action of the pretensioning spring 7, move upwards, and correspondingly loosen the firing pin 4, thereby realizing the adjustment of the pretensioning force between the firing pin 4 and the nozzle 5; on the contrary, when the adjusting rod 11 is screwed, the upper adjusting block 9 overcomes the friction force between the upper adjusting block and the pre-tightening piece 8, moves downwards, and drives the firing pin 4 to move downwards through the lower adjusting block 10, the piezoelectric actuator 2 and the lever 3 in sequence, and the firing pin 4 is correspondingly tightened, so that the pre-tightening force between the firing pin 4 and the nozzle 5 is adjusted to be large.
When the nozzle 5 is replaced, after the nozzle 5 is remounted on the valve body 1, the pretightening force between the firing pin 4 and the nozzle 5 can be adjusted by rotating the adjusting rod 11; on this basis, the precise adjustment process of the pretightening force between the striker 4 and the nozzle 5 specifically may be: the tightening or loosening of the adjusting rod 11 can affect the pushing force of the firing pin 4 and the nozzle 5, so that the pressed tightness of the piezoelectric actuator 2 can be affected, the piezoelectric actuator 2 is connected with an external circuit, one current value in the external circuit with different pressed tightness can be correspondingly changed, the current value is changed to be changed into the change of the displacement, and the accurate adjustment of the pre-tightening force between the firing pin 4 and the nozzle 5 can be realized.
Example 2
A piezoelectric injection valve comprising the device for correcting preload between a striker and a nozzle in embodiment 1.
In light of the foregoing description of the preferred embodiment of the present invention, it is to be understood that numerous changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. The utility model provides a device for proofreading and correct pretightning force between firing pin and nozzle, is used for piezoelectric injection valve, and this piezoelectric injection valve includes valve body (1), piezoelectric actuator (2) of configuration in valve body (1), firing pin (4) and the nozzle (5) that are located valve body (1) below of slidable mounting on valve body (1), and piezoelectric actuator (2) drive firing pin (4) and feed to nozzle (5) through lever (3) power amplification back, its characterized in that: the device includes:
The first adjusting mechanism is provided with a pre-tightening piece (8), an upper adjusting block (9) and a lower adjusting block (10) which are matched with each other, the pre-tightening piece (8) is limited on the side of the upper adjusting block (9) and can push the upper adjusting block (9) from the side, so that the lower adjusting block (10) drives the piezoelectric actuator (2) to move downwards;
and the second adjusting mechanism is provided with an adjusting rod (11), the adjusting rod (11) is in threaded connection with the valve body (1), the bottom end of the adjusting rod (11) is abutted to the upper surface of the upper adjusting block (9), and when the adjusting rod (11) pushes the upper adjusting block (9) to move downwards, the lower adjusting block (10) drives the piezoelectric actuator (2) to move downwards.
2. The device for correcting preload force between a striker and a nozzle according to claim 1, characterized in that: slide opening (1-1) have been seted up to side of valve body (1), go up regulating block (9) and lower regulating block (10) and all set up in slide opening (1-1), the lower surface of going up regulating block (9) and the upper surface contact of regulating block (10) down, the lower surface of going up regulating block (9) and the upper surface of regulating block (10) down are the inclined plane, pretension piece (8) butt is at the left surface of last regulating block (9), the right flank butt of regulating block (10) is in the hole bottom of slide opening (1-1) down, the lower surface of regulating block (10) and the head end opposition of piezoelectric actuator (2) down.
3. the device for correcting preload force between a striker and a nozzle according to claim 2, characterized in that: the slope slopes upward from left to right.
4. The device for correcting preload force between a striker and a nozzle according to claim 2, characterized in that: the upper inner wall of the sliding hole (1-1) is a limiting surface (1-11) used for limiting the upper adjusting block (9) upwards, and a gap is reserved between the lower surface of the lower adjusting block (10) and the lower inner wall of the sliding hole (1-1).
5. the device for correcting preload between a striker and a nozzle according to any one of claims 1 to 4, wherein: the preload piece (8) is in threaded connection with the valve body (1).
6. The device for correcting preload force between a striker and a nozzle according to claim 1, characterized in that: the adjusting rod (11) is provided with a step surface (11-1) for limiting the adjusting rod downwards.
7. the device for correcting preload force between a striker and a nozzle according to claim 1, characterized in that: the valve body (1) is provided with two clamping arms (1-2), the adjusting rod (11) is located between the two clamping arms (1-2), a locking screw (15) is arranged on the side of the adjusting rod (11), and the locking screw (15) is connected between the two clamping arms (1-2).
8. a piezoelectric injection valve characterized by: comprising a device for correcting the pretension between the firing pin and the nozzle according to any of the claims 1-7 above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910904417.3A CN110548649A (en) | 2019-09-24 | 2019-09-24 | Device for correcting pretightening force between firing pin and nozzle and piezoelectric injection valve thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910904417.3A CN110548649A (en) | 2019-09-24 | 2019-09-24 | Device for correcting pretightening force between firing pin and nozzle and piezoelectric injection valve thereof |
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| CN110548649A true CN110548649A (en) | 2019-12-10 |
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| CN201910904417.3A Pending CN110548649A (en) | 2019-09-24 | 2019-09-24 | Device for correcting pretightening force between firing pin and nozzle and piezoelectric injection valve thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111515082A (en) * | 2020-04-30 | 2020-08-11 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Ultrasonic vibration stirring type piezoelectric injection valve |
| CN111632797A (en) * | 2020-06-10 | 2020-09-08 | 东莞市集韵自动化科技有限公司 | Nozzle-adjustable self-adaptive piezoelectric injection valve |
| CN112108321A (en) * | 2020-04-30 | 2020-12-22 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Piezoelectric spraying device for non-curing double-component glue |
| CN112387530A (en) * | 2020-10-26 | 2021-02-23 | 深圳市腾盛精密装备股份有限公司 | Novel accurate piezoelectricity injection valve |
| CN112965367A (en) * | 2020-09-01 | 2021-06-15 | 江苏高凯精密流体技术股份有限公司 | Piezoelectric ceramic injection valve adjusting method based on current sensor |
| CN113102178A (en) * | 2021-04-08 | 2021-07-13 | 广东安达智能装备股份有限公司 | Ultrahigh-speed dispensing electromagnetic valve convenient to debug |
| CN114226175A (en) * | 2022-02-21 | 2022-03-25 | 常州铭赛机器人科技股份有限公司 | Piezoelectric valve pre-tightening adjusting mechanism |
| CN114653540A (en) * | 2022-04-19 | 2022-06-24 | 深圳市启扬智能装备有限公司 | Articulated injection valve |
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Address after: 213100 South Building 1201-1210, Huiyan Building, 18 Changwuzhong Road, Wujin District, Changzhou City, Jiangsu Province Applicant after: Jiangsu GaoKai precision fluid technology Co., Ltd Address before: 213100 South Building 1201-1210, Huiyan Building, 18 Changwuzhong Road, Wujin District, Changzhou City, Jiangsu Province Applicant before: Changzhou Gaokai Precision Technology Co., Ltd. |