CN201249145Y

CN201249145Y - Pulse valve for plastic injection device

Info

Publication number: CN201249145Y
Application number: CNU2008201287297U
Authority: CN
Inventors: 刘光哲
Original assignee: E&R ENGINEERING CORP
Current assignee: E&R ENGINEERING CORP
Priority date: 2008-08-15
Filing date: 2008-08-15
Publication date: 2009-06-03
Anticipated expiration: 2018-08-15

Abstract

The utility model relates to a pulse valve for a plastic injection device, which comprises a rigid valve body and a valve pipe, wherein a jostling concave part and a small-aperture combination hole are formed in the valve body; an opening at the upper end of the jostling concave part is larger, and the opening at the lower end is smaller; the small-aperture combination hole extends downwards from the centre of the bottom of the jostling concave part; and the valve pipe is fixedly connected in the combination hole of the valve body through the upper end. Thus when the pulse valve is applied to the plastic injection device, and a ball head firing pin in the plastic injection device is impelled towards the direction of the jostling concave part of the valve body, the guidance action of the jostling concave part is utilized to cause collide originally positioned in the jostling concave part to be jostled in the valve pipe and be jetted out from the bottom end of the valve pipe, and the downward size of the joisting concave part gradually shrinks and extends in the valve body.

Description

The pulse valve that is used for the injecting glue device

Technical field

The utility model is about a kind of injecting glue device, refers to the pulse valve design of this injecting glue device glue-extruding end especially.

Background technology

Structure process as electronic building brick, for chip or other tiny assembly are sticked together on the immobilization carrier, usually must by devices such as injecting glue devices under the Position Control of precision, on carrier, inject the colloid of scheduled volume, and then chip or other predetermined tiny assembly are sticked together fixing usefulness.

Tradition injecting glue device is to make a glue injecting head connect pneumatic control system, determines the injection volume of colloid by the size of air pressure.Only because of the design of electronic building brick at present, towards more granular development, the demand that traditional vapour-pressure type injecting glue device promptly can't be realistic is so mainly be applied to tiny electronic building brick with pulsed injecting glue device at present.

At present existing pulsed injecting glue device design, as Fig. 6, shown in 7, it mainly is in its injecting glue body 6 external colloid supply sources, be provided with a pulse valve 7 in injecting glue body 6 bottom gum-injecting ports, described pulse valve 7 mainly comprises an elastomer block 70 and a valve piece 71, this valve piece 71 is located at gum-injecting port place, injecting glue body 6 bottom, be provided with a trickle through hole in it, this elastomer block 70 is one to have the distortion of can being extruded and the member of recovery characteristic, be provided with a trickle mesopore in it, and this elastomer block 70 is located at this valve piece 71 tops, in addition these injecting glue body 6 inside still be provided with one can controlled bulb striker 8 towards the reciprocal start of pulse valve 7 directions, whereby, this pulsed injecting glue device is when using, provide colloid by the colloid supply source to injecting glue body 6, afterwards, make this bulb striker 8 advance, and further seal this elastomer block 70 mesopore upper port with its terminal bulb 80 towards the pulse valve 7 of below, continue and push this elastomer block 70 downwards, and then extrude colloid by the through hole bottom of valve piece 71.

Though but before take off pulse valve design and can be applied in the injecting glue device, utilize the elastomer block extrusion and extrude the purpose of colloid, yet, this elastomer block is accepted repeatedly squeezing action of striker bulb, easily make its bulk material aging, thus need each section period promptly must change, moreover, elastomer block is subject to the elasticity effect of itself, causes the situation of gel quantity inequality.

Summary of the invention

Main purpose of the present utility model is to provide a kind of pulse valve that is used for the injecting glue device, wishes design whereby, improves the shortcoming of aforementioned existing pulse valve.

For reaching above-mentioned purpose, the designed pulse valve of the utility model comprises:

One rigidity valve body wherein is formed with and pushes recess, and one push under the concave bottom mediad small-bore combined hole that extends from this, and this is pushed recess and forms that upper end open is big, the less depression of lower ending opening; And

One valve pipe, its upper end is fixed in the combined hole of this valve body.

The utility model was taken off the pulse valve design in the past, and compared to the pulse valve of previously known, characteristics of the present utility model are:

When pulse valve of the present utility model is applied to the injecting glue device, it is that the bulb striker is pushed the recess direction when advancing towards valve body in the injecting glue device, need not be by the compression of valve body itself, directly utilize the recess arrangement of pushing that downward size convergent in the valve body extends, make the former colloid of pushing recess that is positioned at be got into the valve pipe automatically, and by the ejaculation of valve pipe bottom, so can avoid known pulse valve elastomer fragile after repeatedly pushing metamorphosis, and the facts of glue amount injection volume inequality.

Description of drawings

Fig. 1 is the schematic perspective view of one of the utility model pulse valve preferred embodiment after biopsy cavity marker devices;

Fig. 2,3 is the side-looking floor map that pulse valve preferred embodiment shown in Figure 1 is applied to the different watching angles of injecting glue device;

Fig. 4,5 is the user mode reference diagram of pulse valve preferred embodiment shown in Figure 1 in the injecting glue device; And

Fig. 6,7 user mode reference diagrams for the pulse valve in the existing injecting glue device.

The specific embodiment

As shown in Figure 1, disclose one of the pulse valve preferred embodiment that the utility model is used for the injecting glue device, by seeing among the figure and this pulse valve 1 comprises a valve body 10 and a valve pipe 20, wherein:

This valve body 10 is the made member of rigidity material, wherein be formed with and push recess 11 and and push the small-bore combined hole 12 that recess 11 bottom center are extended downwards from this, it is bigger to push recess 11 formation upper end open, the depression that lower ending opening is less, describedly push the depression that recess 11 can be single stratum, or the combined shaped that is arranged above and below of the depression that can be plural stratum, as Fig. 1, preferred embodiment shown in 4, this is pushed recess 11 and includes the depression of second order stratiform up and down, wherein lower floor's depression 11A is the arc concave curved surface shape depression of the bulb 3A outside dimension of corresponding bulb striker 3, and upper strata depression 11B is then from the depression 11A of this lower floor upper limb cumulative coniform depression of size up.

Aforesaid valve body 10 can be the member of single block formed thereby, or the member of forming for several blocks, preferred embodiment as shown in Figure 1, described valve body 10 is that the last push-down stack of the first valve piece 10A and the second valve piece 10B combines, wherein the first valve piece 10A is provided with one and pushes recess 11 and a bit of combined hole 12A, and this second valve piece 10B then is provided with the lower edge that combined hole 12B is connected in the combined hole 12A of the first valve piece 10A.

This valve pipe 20 is the body of slim pipe diameter, its upper end is fixed in the combined hole 12 of this valve body 10, the apical margin of this valve pipe 20 can be concordant with the root edge of pushing recess 11, or with push recess 11 root edges and keep a bit of spacing, as shown in Figure 1, described valve body 10 is that the last push-down stack of the first valve piece 10A and the second valve piece 10B combines, wherein the first valve piece 10A is provided with one and pushes recess 11 and a bit of combined hole 12, this second valve piece 10B then is provided with the lower edge that combined hole 12 is connected in the combined hole 12 of the first valve piece 10A, this valve pipe 20 is fixedly arranged in the combined hole 12 of this second valve piece 10B, and is concordant with combined hole 12 upper limbs of the second valve piece 10B.

The utility model pulse valve 1 is when using, shown in Fig. 2-5, be installed in the injecting glue end of injecting glue body 2 bottoms of pulsed injecting glue device, the external colloid supply source 5 of these injecting glue body 2 one sides, be equiped with in addition in injecting glue body 2 inside one can the reciprocal start of the controlled valve of square pulse down 1 direction bulb striker 3.When this injecting glue device is applied to the injecting glue operation, it imports colloids 4 by the colloid supply source to injecting glue body 2, colloid 4 is full of the colloid room 2A of injecting glue body 2 inside and pulse valve 1 inside of below, the certain viscosity of described colloid 4 tools own, afterwards, make this bulb striker 3 controlled by top pulse valve 1 propelling downwards, at this moment, wherein when this bulb striker 3 is advanced into this downwards and pushes recess 11 root edges than the bulb 3A of external diameter with the lower end, even the former colloid 4 of pushing recess 11 is squeezed in the valve pipe 20 of below, and then penetrate the colloid 4 of scheduled volume by valve pipe 20 bottoms, when treating that bulb striker 3 rises, colloid 4 backfill once again of injecting glue body 2 inside is pushed in the depression 11 in valve body, waits for the step of the colloid of extruding injection next time.

Via above explanation as can be known, pulse valve of the present utility model makes that its valve body is a rigid body, cooperate in the valve body to what size convergent down extended and push design such as recess, when order is pushed at the bulb striker, can directly make the former colloid of pushing recess that is positioned at be got into the valve pipe automatically, and penetrate the colloid of scheduled volume by valve pipe bottom, extrude colloid so need not utilize existing pulse valve elastomer by striker bulb pushing mode of texturing, thereby can effectively reduce the situation that member damages, and provide one to have more pulse valve design handy, practical function for the injecting glue device.

Claims

1. a pulse valve that is used for the injecting glue device is characterized in that, comprising:

One valve pipe, its upper end is fixed in the combined hole of this valve body.

2. the pulse valve that is used for the injecting glue device as claimed in claim 1, it is characterized in that, push recess and include two stratum's depressions up and down, wherein lower floor's depression forms arc concave curved surface shape depression, and the upper strata depression forms the cumulative coniform depression of size up from this lower floor's depression upper limb.

3. the pulse valve that is used for the injecting glue device as claimed in claim 1 or 2, it is characterized in that, this valve body is that push-down stack combines on the first valve piece and the second valve piece, wherein the first valve piece is provided with one and pushes recess and a bit of combined hole, and this second valve piece is provided with the lower edge that combined hole is connected in the combined hole of the first valve piece; This valve pipe epimere is fixed in the combined hole of this second valve piece, and this valve pipe apical margin is pushed the recess root edge and kept a spacing.