CN205436205U

CN205436205U - Piezoelectricity injection valve

Info

Publication number: CN205436205U
Application number: CN201521131102.3U
Authority: CN
Inventors: 都世杰
Original assignee: Doppler (tianjin) Technology Development Co Ltd
Current assignee: Doppler (tianjin) Technology Development Co Ltd
Priority date: 2015-12-29
Filing date: 2015-12-29
Publication date: 2016-08-10
Anticipated expiration: 2025-12-29

Abstract

The utility model discloses a piezoelectricity injection valve, including base member, piezoelectric actuator and liquid part, the vertical align to grid of setting of inner chamber of base member has the strengthening rib, the inner chamber of base member bottom transversely sets up intensive equidistance and arranges to have and increase solid muscle, the piezoelectric actuator who installs piezoelectric element in fashioned centre is makeed through piezoceramic material to vertical being provided with in the middle of the base member inner chamber, the utility model discloses the structure is light and handy, reasonable in design, and injection valve overall structure hardness and intensity are high, and the kinetic energy that piezoelectric actuator produced is convenient for strengthen through the setting of action amplifier by long service life to the downstream of with higher speed spraying the push rod utilizes the effect of piston to promote the liquid drop, effectively avoids the liquid drop to adhere to and glues on the nozzle surface and cause the blocking phenomenon of nozzle.

Description

A kind of piezo jet valve

Technical field

This utility model relates to a glue injection valve field, is specially a kind of piezo jet valve.

Background technology

Piezoelectric type spray site glue make use of the inverse piezoelectric effect of piezoelectric, and injection frequency is high, device structure is simple, and on the other hand, the control accuracy of piezoelectric structure is high, can improve spray site glue quality.All can adapt to multiple fluid material in research both at home and abroad, and there is the most flexible spot gluing equipment so that it is energy accurate control of fluid flow and the position of glue point, to obtain uniform glue point, realize glue point being accurately positioned, to adapt to the needs of Electronic Packaging industry development simultaneously.

Along with the development of encapsulation industry, dispensing technology is the most gradually changed to non-contact type (injection) some glue by contact point glue.Nowadays, the use of piezo jet valve is more and more frequent, and kind liquid gets more and more.But, piezo jet valve hardness and intensity the most on the market are low, the situation that fracture is broken is easily produced during use, and piezo jet valve on the market easily the most constantly weares and teares when life-time service, the service life causing piezo jet valve constantly shortens, it is difficult to meet the use demand in market.

Utility model content

The purpose of this utility model is to provide a kind of piezo jet valve, with the problem solving to propose in above-mentioned background technology.

For achieving the above object, the following technical scheme of this utility model offer:

A kind of piezo jet valve, including matrix, piezo-activator and liquid portion, the inner chamber of described matrix is vertically arranged evenly distributed has reinforcement, the bottom right side of described matrix is provided with waveform Handheld Division, the intensive equidistant arrangement of intracavity bottom horizontally set of described matrix has reinforcement muscle, the piezo-activator being installed on piezoelectric element by the centre of piezoceramic material making molding it is vertically provided with in the middle of described matrix inner chamber, the inner chamber of described matrix is positioned at the passage being vertically provided through hollow structure bottom piezo-activator, the bottom of described piezo-activator is connected by action amplifier the injection push rod being positioned at passage；

The periphery of described injection push rod is provided with the resilient element of wafer-type disc spring, the bottom of described injection push rod is positioned at bottom resilient element and is provided with the piston corresponding with passage Internal periphery, the intracavity bottom of described passage is positioned at base bottom and is provided with the round-meshed nozzle of surface dense distribution, and the bottom of described nozzle connects and has syringe needle, described matrix intracavity bottom is provided with the fluid passage being connected with described passage, it is provided with liquid portion in what the left side top of described matrix was offered partly run through notch, and described liquid portion is connected with described matrix by the female thread being arranged in notch, the reservoir channel being connected with described fluid passage it is provided with in the middle of the inner chamber of described liquid portion, the outside of described liquid portion is provided with external screw thread.

Preferably, described fluid passage and reservoir channel combination are configured to Z-shaped structure, and the intracavity bottom of described fluid passage is incline structure.

Preferably, described injection push rod is peripheral is provided with sealing rubber ring with described action amplifier contact position.

Preferably, the outer surface of described matrix is provided with concavo-convex orderly striped, and the outer surface of described matrix has wearing layer, and described matrix uses stainless steel alloy material to be made for one.

Preferably, the inner surface of described matrix is coated with anticorrosive coat, and the global sections profile of described matrix is the design of " h " shape structure, and the left side of described matrix is provided with installing hole.

nullCompared with prior art，The beneficial effects of the utility model are: this utility model light structure，Reasonable in design，Injection valve overall structure hardness and intensity are high，Service life is long，The reinforcement used and the use of reinforcement muscle can strengthen the overall intensity of injection valve and hardness，Thus improve the anti-impact force of injection valve and the ability of resistance to deformation，And then extend the service life of injection valve，And be easy to strengthen the kinetic energy that piezo-activator produces by the setting of action amplifier，Thus the moving downward of accelerating jetting push rod，Drop is promoted by the effect utilizing piston，It is prevented effectively from drop attachment to be bonded at nozzle surface and cause the clogging of nozzle，And the kinetic energy promoting drop that the piezo-activator of piezoceramic material making molding produces expands further，And the application of striped can strengthen the aesthetics of injection valve，And matrix uses stainless steel alloy material to be made to improve the anticorrosive rust resistance of injection valve，Thus extend the service life of injection valve，And the anticorrosive coat used can the phenomenon of the effective corrosion that surface injection valve occurs when life-time service，Thus extend the service life of injection valve.

Accompanying drawing explanation

Fig. 1 is this utility model structural representation；

Fig. 2 is this utility model Facad structure schematic diagram.

In figure: 1 matrix, 2 reinforcements, 3 Handheld Divisions, 4 anticorrosive coats, 5 piezo-activators, 51 piezoelectric elements, 6 action amplifiers, 7 injection push rod, 8 sealing rubber rings, 9 resilient elements, 10 pistons, 11 passages, 12 nozzles, 13 syringe needles, 14 reinforcement muscle, 15 fluid passages, 16 liquid portion, 17 female threads, 18 reservoir channels, 19 external screw threads, 20 stripeds, 21 wearing layers.

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.

Refer to Fig. 1-2, a kind of technical scheme of this utility model offer:

nullA kind of piezo jet valve，Including matrix 1、Piezo-activator 5 and liquid portion 16，The inner chamber of matrix 1 is vertically arranged evenly distributed has reinforcement 2，The bottom right side of matrix 1 is provided with waveform Handheld Division 3，The inner surface of matrix 1 is coated with anticorrosive coat 4，The anticorrosive coat 4 used can the phenomenon of the effective corrosion that surface injection valve occurs when life-time service，Thus extend the service life of injection valve，The global sections profile of matrix 1 is the design of " h " shape structure，And the left side of matrix 1 is provided with installing hole，The intensive equidistant arrangement of intracavity bottom horizontally set of matrix 1 has reinforcement muscle 14，The reinforcement 2 used and the use of reinforcement muscle 14 can strengthen the overall intensity of injection valve and hardness，Thus improve the anti-impact force of injection valve and the ability of resistance to deformation，And then extend the service life of injection valve，The piezo-activator 5 being installed on piezoelectric element 51 by the centre of piezoceramic material making molding it is vertically provided with in the middle of matrix 1 inner chamber，The kinetic energy promoting drop of piezo-activator 5 generation that piezoceramic material makes molding expands further，The inner chamber of matrix 1 is positioned at the passage 11 being vertically provided through hollow structure bottom piezo-activator 5，The bottom of piezo-activator 5 is connected by action amplifier 6 the injection push rod 7 being positioned at passage 11，The peripheral contact position with action amplifier 6 of injection push rod 7 is provided with sealing rubber ring 8，Sealing rubber ring 8 can increase the air-tightness in passage 11，Consequently facilitating the use of injection valve，It is easy to strengthen the kinetic energy that piezo-activator 5 produces by the setting of action amplifier 6，Thus the moving downward of accelerating jetting push rod 7，Drop is promoted by the effect utilizing piston 10，It is prevented effectively from drop attachment to be bonded at nozzle 12 surface and cause the clogging of nozzle 12.

nullThe periphery of injection push rod 7 is provided with the resilient element 9 of wafer-type disc spring，This resilient element 9 is capable of spraying the returning quickly of push rod 7，And then it is capable of spraying the round running of push rod 7，The bottom of injection push rod 7 is positioned at bottom resilient element 9 and is provided with the piston 10 corresponding with passage 11 Internal periphery，The intracavity bottom of passage 11 is positioned at bottom matrix 1 and is provided with the round-meshed nozzle of surface dense distribution 12，And the bottom connection of nozzle 12 has syringe needle 13，Matrix 1 intracavity bottom is provided with the fluid passage 15 being connected with passage 11，It is provided with liquid portion 16 in what the left side top of matrix 1 was offered partly run through notch，And liquid portion 16 is connected with matrix 1 by the female thread 17 being arranged in notch，The reservoir channel 18 being connected with fluid passage 15 it is provided with in the middle of the inner chamber of liquid portion 16，Fluid passage 15 and reservoir channel 18 combination are configured to Z-shaped structure，This Z-shaped is configured to be easy to the flowing of liquid and injection，And the intracavity bottom of fluid passage 15 is incline structure，The outside of liquid portion 16 is provided with external screw thread 19，The quick dismounting of liquid portion 16 is easy in the use of external screw thread 19，The outer surface of matrix 1 is provided with concavo-convex orderly striped 20，The application of striped 20 can strengthen the aesthetics of injection valve，The outer surface of matrix 1 has wearing layer 21，The utilization of this wearing layer 21 can reduce the abrasion that injection valve is suffered in use，And then extend the useful life of injection valve，And matrix 1 uses stainless steel alloy material to be made for one，Matrix 1 uses stainless steel alloy material to be made to improve the anticorrosive rust resistance of injection valve，Thus extend the service life of injection valve.

Operation principle: during work, in piezo-activator 5, piezoelectric element 51 produces, at action amplifier 6, the injection push rod 7 that higher kinetic energy drives, and then drive piston 10 to be sprayed from nozzle 12 by the liquid in fluid passage 15 and passage 11 and then carry out a glue by syringe needle 13 derivation, by resilient element 9, injection push rod 7 back and forth movement under piezo-activator 5 acts on.

Embodiment the most of the present utility model, for the ordinary skill in the art, being appreciated that in the case of without departing from principle of the present utility model and spirit and these embodiments can carry out multiple change, revise, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.

Claims

null1. a piezo jet valve，Including matrix (1)、Piezo-activator (5) and liquid portion (16)，It is characterized in that: the inner chamber of described matrix (1) is vertically arranged evenly distributed has reinforcement (2)，The bottom right side of described matrix (1) is provided with waveform Handheld Division (3)，The intensive equidistant arrangement of intracavity bottom horizontally set of described matrix (1) has reinforcement muscle (14)，The piezo-activator (5) being installed on piezoelectric element (51) by the centre of piezoceramic material making molding it is vertically provided with in the middle of described matrix (1) inner chamber，The inner chamber of described matrix (1) is positioned at piezo-activator (5) bottom and is vertically provided through the passage (11) of hollow structure，The bottom of described piezo-activator (5) is connected by action amplifier (6) the injection push rod (7) being positioned at passage (11)；nullThe periphery of described injection push rod (7) is provided with the resilient element (9) of wafer-type disc spring，The bottom of described injection push rod (7) is positioned at resilient element (9) bottom and is provided with the piston (10) corresponding with passage (11) Internal periphery，The intracavity bottom of described passage (11) is positioned at matrix (1) bottom and is provided with the round-meshed nozzle of surface dense distribution (12)，And the bottom of described nozzle (12) connects and has syringe needle (13)，Described matrix (1) intracavity bottom is provided with the fluid passage (15) being connected with described passage (11)，It is provided with liquid portion (16) in what the left side top of described matrix (1) was offered partly run through notch，And described liquid portion (16) is connected with described matrix (1) by the female thread (17) being arranged in notch，The reservoir channel (18) being connected with described fluid passage (15) it is provided with in the middle of the inner chamber of described liquid portion (16)，The outside of described liquid portion (16) is provided with external screw thread (19).
A kind of piezo jet valve the most according to claim 1, it is characterised in that: described fluid passage (15) and reservoir channel (18) combination are configured to Z-shaped structure, and the intracavity bottom of described fluid passage (15) is incline structure.
A kind of piezo jet valve the most according to claim 1, it is characterised in that: described injection push rod (7) is peripheral is provided with sealing rubber ring (8) with described action amplifier (6) contact position.
A kind of piezo jet valve the most according to claim 1, it is characterized in that: the outer surface of described matrix (1) is provided with concavo-convex orderly striped (20), the outer surface of described matrix (1) has wearing layer (21), and described matrix (1) uses stainless steel alloy material to be made for one.
A kind of piezo jet valve the most according to claim 1, it is characterized in that: the inner surface of described matrix (1) is coated with anticorrosive coat (4), the global sections profile of described matrix (1) is the design of " h " shape structure, and the left side of described matrix (1) is provided with installing hole.