CN111957519A - Impact buffering type injection device and injection method - Google Patents
Impact buffering type injection device and injection method Download PDFInfo
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- CN111957519A CN111957519A CN202010894656.8A CN202010894656A CN111957519A CN 111957519 A CN111957519 A CN 111957519A CN 202010894656 A CN202010894656 A CN 202010894656A CN 111957519 A CN111957519 A CN 111957519A
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- impact
- nozzle
- pipeline
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- 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
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- 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
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
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Abstract
The invention discloses an impact buffer type injection device and an injection method, wherein the device comprises a piezoelectric driving mechanism, an impact mechanism, an injection mechanism, a pipeline and a flow channel, the injection mechanism comprises a jet orifice, a nozzle, a pressure buffer elastic piece and a stroke adjusting piece, the nozzle is communicated with the pipeline and can move up and down along the jet orifice, the upper end of the pressure buffer elastic piece is fixed on the nozzle, the lower end of the pressure buffer elastic piece is fixed on the stroke adjusting piece, and the stroke adjusting piece is adjustably connected with the jet orifice; the piezoelectric driving mechanism is connected with the impact mechanism, the impact direction of the impact mechanism is the direction of the jet mechanism, and the piezoelectric driving mechanism can move up and down along a pipeline; the flow channel is filled with spraying materials, one end of the flow channel is a closed end, and the other end of the flow channel is communicated with the pipeline. The invention solves the problem that the feeding is carried out without impact injection and the screw valve is required to be matched, and solves the problem that the nozzle is blocked by the solder paste caused by the transitional extrusion of the solder paste in the impact injection process.
Description
Technical Field
The invention relates to an injection device, in particular to an impact buffer type injection device and an injection method, and belongs to the technical field of dispensing.
Background
Dispensing is a process of applying a glue solution with a specified volume to a workpiece, and the dispensing technology is widely applied to the field of electronic manufacturing, in particular to the fields of mobile phones, computers and communication. With the rapid development of the 3C industry, non-contact spraying dispensing is widely applied, the non-contact dispensing is to spray glue on a workpiece, and the non-contact dispensing has the characteristics of high speed, high precision, no contact with the workpiece and the like.
At present, the non-contact dispensing is divided into a piezoelectric driving mode and a pressure gas driving mode in a driving power mode, and the non-contact dispensing is divided into an impact spraying mode and a non-impact spraying mode in a working mode. The impact type jet can jet high-viscosity fluid out, and can also jet stream solids such as silver paste, but some glue containing solid particles is difficult to jet the tin paste out, the tin ball in the tin paste is soft, and in the jet process of the impact type jet valve, the tin ball is crushed and is bonded on the nozzle and the firing pin, so that the jet is stopped, the jet is unstable, the companies such as Germany vermes 3200, marco, American Noxin pico series and the like mainly adopt the impact type jet as the main part and can jet high-low viscosity fluid, but some glue containing solid particles is difficult to jet the tin paste due to the fact that the jet is generated in the impact moment, the jet nozzle firing pin assembly is easy to abrade, and the jet with the diameter more than 5 # powder particles can not be jetted; non-impact jetting, such as mydate600 in sweden, which adopts a screw and piezoelectric mixed type, has a relatively complex structure, a nozzle is a whole, integral maintenance is needed during maintenance, the maintenance cost is high, the flexible jetting force is small, and only tin paste can be jetted.
Disclosure of Invention
The invention aims to provide an impact buffering type spraying device which can realize tin paste spraying and common glue spraying, solves the problem of spraying universality in electronic packaging in the industry at present, solves the problem that feeding is required to be matched by a screw valve in non-impact spraying, and solves the problem that a nozzle is blocked by tin paste due to excessive extrusion of the tin paste in the impact spraying process.
The invention also aims to provide an impact buffer type spraying method based on the device.
The purpose of the invention can be achieved by adopting the following technical scheme:
an impact buffering type injection device comprises a piezoelectric driving mechanism, an impact mechanism, an injection mechanism, a pipeline and a flow channel, wherein the injection mechanism comprises a jet orifice, a nozzle, a pressure buffering elastic piece and a stroke adjusting piece; the piezoelectric driving mechanism is connected with the impact mechanism, the impact direction of the impact mechanism is the direction of the jet mechanism, and the piezoelectric driving mechanism can move up and down along a pipeline; the flow channel is filled with spraying materials, one end of the flow channel is a closed end, and the other end of the flow channel is communicated with the pipeline.
Further, the device still includes the storage tank, the discharge gate and the runner intercommunication of storage tank.
Furthermore, the device also comprises a shell and a fluid seat, wherein the shell is fixedly connected with the fluid seat, the piezoelectric driving mechanism is arranged in the shell, the impact mechanism extends downwards from the inside of the shell until penetrating through the fluid seat, the storage tank is fixed at the top of the fluid seat, the jet orifice is fixed at the bottom of the fluid seat, and the flow channel is arranged in the fluid seat.
Furthermore, the piezoelectric driving mechanism comprises a piezoelectric driver and a lever, the piezoelectric driver is vertically arranged on the lever, and one end of the lever is fixedly connected with the impact mechanism.
Furthermore, the piezoelectric driving mechanism further comprises a reset elastic piece, the reset elastic piece is sleeved outside the impact mechanism, the upper end of the reset elastic piece is fixedly connected with the lever, and the lower end of the reset elastic piece is fixedly arranged.
Further, the piezoelectric actuator is piezoelectric ceramic.
Further, the stroke adjusting piece is a stroke adjusting nut, and the stroke adjusting nut is in threaded connection with the jet orifice.
Further, the striking mechanism is a striker.
Further, the closed end of the flow passage is closed by a plug.
The other purpose of the invention can be achieved by adopting the following technical scheme:
an impact buffering type injection method is realized based on the device, and the method comprises the following steps: when a high level is supplied to the piezoelectric driving mechanism, the piezoelectric driving mechanism pushes the impact mechanism to move downwards, high pressure is generated between the impact mechanism and the nozzle, spray materials in the driving pipeline are sprayed out of the nozzle, and meanwhile, the pressure buffering elastic piece acts on the nozzle to move downwards, so that the nozzle is not contacted with the impact mechanism; when the pressure between the impact mechanism and the nozzle is reduced, the impact mechanism is attached to the nozzle so as to cut off the sprayed material in the pipeline; when a low level is supplied to the piezoelectric driving mechanism, the piezoelectric driving mechanism drives the impact mechanism to move upwards, and the spraying material is filled in the pipeline; the piezoelectric driving mechanism receives high level to complete the next injection.
Compared with the prior art, the invention has the following beneficial effects:
the spraying mechanism comprises a spraying opening, a nozzle, a pressure buffering elastic piece and a stroke adjusting piece, wherein the nozzle is communicated with a pipeline and can move up and down along the spraying opening, when a piezoelectric driving mechanism receives a high level, a firing pin is pushed to move downwards, high pressure is generated between an impact mechanism and the nozzle, spraying materials in the driving pipeline are sprayed out of the nozzle, and the pressure buffering elastic piece acts on the nozzle to move downwards, so that the nozzle is not in contact with the impact mechanism, the spraying materials cannot be extruded, the pressure between the nozzle and the impact mechanism can smoothly spray the spraying materials out of the nozzle, and when the piezoelectric driving mechanism receives a low level, the impact mechanism is driven to move upwards to fill the pipeline with the spraying materials, so that tin paste spraying can be realized, and common glue spraying can also be realized; in addition, the upper end of the pressure buffering elastic part is fixed on the nozzle, the lower end of the pressure buffering elastic part is fixed on the stroke adjusting part, the stroke adjusting part is adjustably connected with the jet orifice, and the stroke of the pressure buffering elastic part can be adjusted to meet the requirements of different users.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a structural view of an impact buffering type injection apparatus according to an embodiment of the present invention.
Fig. 2 is an enlarged view of a point a in fig. 1.
Fig. 3 is a flow chart of the impact buffering type injection apparatus according to the embodiment of the present invention.
The device comprises a shell, a fluid seat, a material storage tank, a 4-impact mechanism, a 5-injection mechanism, a spray opening 501, a spray nozzle 502, a spray nozzle 503, a pressure buffering elastic piece 504, a stroke adjusting piece 6, a pipeline 7, a flow channel 8, a screw 9, a blocking piece 10, a piezoelectric driver 11, a lever 11 and a reset elastic piece 12.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Example (b):
as shown in fig. 1 and 2, the present embodiment provides an impact buffering type spraying device, which includes a housing 1, a fluid seat 2, a material storage tank 3, a piezoelectric driving mechanism, an impact mechanism 4, a spraying mechanism 5, a pipeline 6 and a flow channel 7, wherein the housing 1 is fixedly connected with the fluid seat 2, and specifically, the housing 1 is connected with the fluid seat 2 through a screw 8.
The storage tank 3 is fixed at the top of the fluid seat 2, the storage tank 3 is provided with a feeding port and a discharging port, wherein the feeding port is arranged at the upper end of the storage tank 3 and can be filled with spray material, the spray material in the embodiment is solder paste, the discharging port is arranged at the lower end of the storage tank 3 and can be communicated with the runner 7, the solder paste in the storage tank 3 flows out from the discharging port, so that the runner 7 is filled with the solder paste, one end of the runner 7 is a closed end, the closed end is closed through a plugging piece 9, and the other end of the runner 7 is communicated with the pipeline 6; in order to control the amount of solder paste entering the flow channel from the storage tank 3 and prevent excessive solder paste from entering the flow channel 7, a valve may be disposed at the discharge port of the storage tank 3.
The injection mechanism 5 comprises an injection port 501, a nozzle 502, a pressure buffering elastic part 503 and a stroke adjusting part 504, wherein the injection port 501 is fixed at the bottom of the fluid seat 2, the nozzle 502 is communicated with the pipeline 6 and can move up and down along the injection port 501, the upper end of the pressure buffering elastic part 503 is fixed on the nozzle 502, the lower end of the pressure buffering elastic part is fixed on the stroke adjusting part 504, and the stroke adjusting part 504 is adjustably connected with the injection port 501 and can adjust the stroke of the pressure buffering elastic part 503 to meet the requirements of different users.
Further, the stroke adjusting member 504 is a stroke adjusting nut, the adjustable connection mode between the stroke adjusting member 504 and the injection port 501 is a threaded connection, and the stroke of the pressure buffering elastic member 503 can be adjusted by adjusting the tightness of the stroke adjusting nut.
Further, the pressure buffering elastic member 503 may be a pressure buffering spring, and when high pressure is generated between the striking mechanism 4 and the nozzle 502, the pressure buffering spring can act on the nozzle 502 to move downward, so that the nozzle 502 is not in contact with the striking mechanism 4.
The piezoelectric driving mechanism is arranged in the shell 1 and comprises a piezoelectric driver 10 and a lever 11, the piezoelectric driver 10 is vertically arranged on the lever 11, one end of the lever 11 is fixedly connected with the impact mechanism 4, the piezoelectric driver 10 is made of piezoelectric ceramics, and can extend when receiving a high-level signal and shorten when receiving a low-level signal, but the extension displacement is small, so that the piezoelectric driving mechanism is amplified through the lever 11.
In order to enable the impact mechanism 4 to be driven by the piezoelectric driving mechanism to reset smoothly, the piezoelectric driving mechanism of this embodiment may further include a reset elastic element 12, the reset elastic element 12 may be a reset spring, which is sleeved outside the impact mechanism 4, an upper end of which is fixedly connected to the lever 11, and a lower end of which is fixed to the inner wall of the housing 1.
The impact mechanism 4 can be a striker which extends downwards from the inside of the housing 1 until penetrating through the fluid seat 2, the impact direction of the striker is the direction of the injection mechanism 5, the striker can move up and down along the pipeline 6 under the driving of the piezoelectric driving mechanism, when the piezoelectric driving mechanism receives a high level, the striker is pushed to move downwards, a high pressure is generated between the striker and the nozzle 502, the solder paste in the pipeline 6 is driven to be sprayed out from the nozzle 502, and when the piezoelectric driving mechanism receives a low level, the striker is driven to move upwards, so that the pipeline 6 is filled with the solder paste.
As shown in fig. 3, the principle of the impact-cushioned jet apparatus of the present embodiment is as follows:
and S1, when high level is given to the piezoelectric ceramic, the piezoelectric ceramic pushes the firing pin to move downwards, high pressure is generated between the firing pin and the nozzle, solder paste in the driving pipeline is sprayed out of the nozzle, and meanwhile the pressure buffer spring acts on the nozzle to move downwards, so that the nozzle is not in contact with the firing pin.
The pressure buffer spring acts on the nozzle to move downwards, so that the nozzle is not in contact with the firing pin, the solder paste cannot be extruded, and the pressure between the nozzle and the firing pin can smoothly eject the solder paste from the nozzle.
And S2, when the pressure between the firing pin and the nozzle is reduced, the firing pin is attached to the nozzle so as to cut off the solder paste in the pipeline.
And S3, when the low level is applied to the piezoelectric ceramic, the piezoelectric ceramic drives the firing pin to move upwards under the action of the return spring, and the pipeline is filled with the solder paste.
And S4, the piezoelectric ceramic receives high level, and the next injection is finished.
In summary, the injection mechanism of the present invention includes an injection port, a nozzle, a pressure buffering elastic member and a stroke adjusting member, the nozzle is communicated with a pipeline and can move up and down along the injection port, when the piezoelectric driving mechanism receives a high level, the firing pin is pushed to move down, a high pressure is generated between the impact mechanism and the nozzle, the spray material in the pipeline is driven to be sprayed out from the nozzle, and simultaneously the pressure buffering elastic member acts on the nozzle to move down, so that the nozzle is not contacted with the impact mechanism, the spray material is not extruded, the pressure between the nozzle and the impact mechanism can smoothly spray the spray material out from the nozzle, when the piezoelectric driving mechanism receives a low level, the impact mechanism is driven to move up, so that the spray material fills the pipeline, thereby not only realizing solder paste injection, but also realizing common glue; in addition, the upper end of the pressure buffering elastic part is fixed on the nozzle, the lower end of the pressure buffering elastic part is fixed on the stroke adjusting part, and the stroke adjusting part is in adjustable connection with the jet orifice and can adjust the stroke of the pressure buffering elastic part.
The above description is only for the preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the inventive concept of the present invention within the scope of the present invention.
Claims (10)
1. An impact buffering type injection device is characterized by comprising a piezoelectric driving mechanism, an impact mechanism, an injection mechanism, a pipeline and a flow channel, wherein the injection mechanism comprises a jet orifice, a nozzle, a pressure buffering elastic piece and a stroke adjusting piece; the piezoelectric driving mechanism is connected with the impact mechanism, the impact direction of the impact mechanism is the direction of the jet mechanism, and the piezoelectric driving mechanism can move up and down along a pipeline; the flow channel is filled with spraying materials, one end of the flow channel is a closed end, and the other end of the flow channel is communicated with the pipeline.
2. The impact-cushioned jet assembly of claim 1 further comprising a reservoir having a discharge port in communication with the flow channel.
3. The impact-cushioned sprayer of claim 2, further comprising a housing and a fluid seat, the housing being fixedly attached to the fluid seat, the piezoelectric actuator being disposed within the housing, the impact mechanism extending downwardly from within the housing until it passes through the fluid seat, the accumulator being secured to a top of the fluid seat, the spray orifice being secured to a bottom of the fluid seat, and the flow channel being disposed within the fluid seat.
4. The impact buffering type spraying device as claimed in any one of claims 1 to 3, wherein said piezoelectric actuator comprises a piezoelectric actuator and a lever, said piezoelectric actuator is vertically disposed on the lever, and one end of said lever is fixedly connected with the impact mechanism.
5. The impact buffering type spraying device as claimed in claim 4, wherein the piezoelectric driving mechanism further comprises a return elastic member, the return elastic member is sleeved outside the impact mechanism, the upper end of the return elastic member is fixedly connected with the lever, and the lower end of the return elastic member is fixedly arranged.
6. The impact-cushioned jet assembly of claim 4, wherein said piezoelectric actuator is a piezoelectric ceramic.
7. The impact buffering type jet apparatus as claimed in any one of claims 1 to 3, wherein said stroke adjusting member is a stroke adjusting nut, and said stroke adjusting nut is screw-coupled with the jet port.
8. The impact-cushioned jet assembly of any one of claims 1-3, wherein said impact mechanism is a striker.
9. The apparatus of any of claims 1-3, wherein the closed end of the flow channel is closed by a plug.
10. An impact-damped jetting method, implemented on the basis of the device of any one of claims 1-9, characterized in that it comprises: when a high level is supplied to the piezoelectric driving mechanism, the piezoelectric driving mechanism pushes the impact mechanism to move downwards, high pressure is generated between the impact mechanism and the nozzle, spray materials in the driving pipeline are sprayed out of the nozzle, and meanwhile, the pressure buffering elastic piece acts on the nozzle to move downwards, so that the nozzle is not contacted with the impact mechanism; when the pressure between the impact mechanism and the nozzle is reduced, the impact mechanism is attached to the nozzle so as to cut off the sprayed material in the pipeline; when a low level is supplied to the piezoelectric driving mechanism, the piezoelectric driving mechanism drives the impact mechanism to move upwards, and the spraying material is filled in the pipeline; the piezoelectric driving mechanism receives high level to complete the next injection.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010894656.8A CN111957519A (en) | 2020-08-31 | 2020-08-31 | Impact buffering type injection device and injection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010894656.8A CN111957519A (en) | 2020-08-31 | 2020-08-31 | Impact buffering type injection device and injection method |
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| CN111957519A true CN111957519A (en) | 2020-11-20 |
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| CN202010894656.8A Pending CN111957519A (en) | 2020-08-31 | 2020-08-31 | Impact buffering type injection device and injection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114804587A (en) * | 2022-04-27 | 2022-07-29 | 王凯泽 | Ultrathin ITO glass production line |
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| CN206444820U (en) * | 2017-01-22 | 2017-08-29 | 山东大学 | A kind of injecting type point glue equipment of Piezoelectric Driving |
| CN207446625U (en) * | 2017-11-16 | 2018-06-05 | 苏州中触科工精密科技有限公司 | A kind of micro high frequency jet valve for low viscosity fluid |
| CN108722788A (en) * | 2017-04-25 | 2018-11-02 | 深圳市腾盛工业设备有限公司 | A kind of piezoelectric ceramics spray site glue valve |
| CN109332097A (en) * | 2018-11-29 | 2019-02-15 | 常州高凯精密机械有限公司 | A kind of ejecting adhesive dispenser and its adjusting method of feedback regulation |
| CN109967305A (en) * | 2019-04-24 | 2019-07-05 | 厦门威圣邦网络科技有限公司 | A kind of piezo jet valve |
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2020
- 2020-08-31 CN CN202010894656.8A patent/CN111957519A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206444820U (en) * | 2017-01-22 | 2017-08-29 | 山东大学 | A kind of injecting type point glue equipment of Piezoelectric Driving |
| CN108722788A (en) * | 2017-04-25 | 2018-11-02 | 深圳市腾盛工业设备有限公司 | A kind of piezoelectric ceramics spray site glue valve |
| CN207446625U (en) * | 2017-11-16 | 2018-06-05 | 苏州中触科工精密科技有限公司 | A kind of micro high frequency jet valve for low viscosity fluid |
| CN109332097A (en) * | 2018-11-29 | 2019-02-15 | 常州高凯精密机械有限公司 | A kind of ejecting adhesive dispenser and its adjusting method of feedback regulation |
| CN109967305A (en) * | 2019-04-24 | 2019-07-05 | 厦门威圣邦网络科技有限公司 | A kind of piezo jet valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114804587A (en) * | 2022-04-27 | 2022-07-29 | 王凯泽 | Ultrathin ITO glass production line |
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