CN205614928U - A gas injection device that is used for gas drive shot to assist shooting technique - Google Patents
A gas injection device that is used for gas drive shot to assist shooting technique Download PDFInfo
- Publication number
- CN205614928U CN205614928U CN201620061947.8U CN201620061947U CN205614928U CN 205614928 U CN205614928 U CN 205614928U CN 201620061947 U CN201620061947 U CN 201620061947U CN 205614928 U CN205614928 U CN 205614928U
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- China
- Prior art keywords
- gas injection
- gas
- spool
- injection nozzle
- bullet
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a gas injection device that is used for gas drive shot to assist shooting technique mainly includes: valve body (2), variable diameter high -pressurepipe connect (4), SDA thin wall cylinder (5), cylinder support (6), adjusting nut (7), floating connector (8), shaft coupling (9), flange (11), case (12), O type sealing washer (14), gas injection nozzle (15). Valve body embedding is installed between mould benevolence and die carrier, install reliable and stable, the transplanting of being convenient for, gas injection nozzle (15) are the cavity tubulose, have reduced gas injection loss of pressure, gas injection nozzle (15) axis is unanimous with die cavity axis prime direction, guarantees to pierce through in the middle of the fuse -element steadily the shot breaks away from the nozzle under the pressure gas drive after, gas injection nozzle (15) can be according to needing to be changed, it is sealed to utilize the shot cover to realize on gas injection nozzle (15) the melten gel, utilize the hypomere of sizing material parcel gas injection nozzle (15) to realize sealing the reliable of gas, the movable valve element advance and retreat are driven in thin wall cylinder (5), realize the gas injection and take the action out. Can be used to supplementary shooting technique of gas drive shot and similar technology.
Description
Technical field
The present invention relates to a kind of simple reliably for the gas injection device of gas-powered bullet Shooting Technique, available
It is molded in gas-powered bullet and be similar to experiment and the production of technique.
Background technology
Utilizing gas directly to penetrate in the melt from gas aided injection mould technology, to form the principle of hollow different,
Gas-powered bullet aided injection mould technology is to utilize pressed gas to drive bullet to penetrate in the melt to obtain hollow
Product, its hollow section depends primarily on maximum cross-sectional shape and the size of bullet；Plastic section of this technique
Face is bigger, more complicated, the thinner uniform hollow of wall thickness, therefore this technology opposing gas aided injection mould technology
There is its specific application prospect.In gas-powered bullet assisted injection molding process equipment, gas injection device is must not
The core component that can lack.In gas aided injection mould technology, gas injection device used is generally air tube, is arranged on mould
Tool die cavity dynamic model side.Gas is overlapped by air tube and gap minimum between gaseous core enters die cavity, and sizing material can not enter
Entering in air tube, this just proposes higher requirement to the machining accuracy of air tube, adds difficulty of processing and system
Cause this, and there is bigger pressure loss.In gas-powered bullet assisted injection molding process technology,
Before injecting glue, bullet is to be enclosed within air injection opening, reinjects pressed gas to drive bullet to advance in sizing material after injecting glue,
May not apply to for this existing gas-assisted injection molding process gas injection device being arranged on mold cavity dynamic model side
Gas-powered bullet assisted injection molding process.Extremely rare to the design of this type of gas injection device both at home and abroad, technology is still
Immature.The design of gas injection device seems for the successful Application of gas-powered bullet assisted injection molding process technology
Particularly important.Existing gas-powered bullet aided injection mould gas injection device is usually designed to a part for mould,
Application Angle Pin slide block structure realizes moving up and down of air injection opening.This apparatus structure is simple, but below existing
Problem: die manufacturing cost is high；Gas injection device does not have transplantability.
Content of the invention
The air tube that gas aided injection mould is used is arranged on die cavity side, it is impossible to meet gas-powered bullet auxiliary
The technological requirement of injection molding technology, the present invention provides a kind of simple reliable for gas-powered bullet Shooting Technique
Gas injection device, the 4th, this device includes plug the 1st, valve body the 2nd, gasket seal the 3rd, reducing diameter high voltage gas-tpe fitting
SDA thin cylinder the 5th, air cylinder support the 6th, adjusting nut the 7th, cylinder connector the 8th, shaft coupling the 9th, coupled axle-pin is the 10th,
Flange the 11st, spool the 12nd, spool stop screw the 13rd, O RunddichtringO the 14th, gas injection nozzle 15.Variable diameters is high
Air pipe joint the 4th, flange 11 and valve body 2 thread connection；Cylinder 5 is bolted on air cylinder support 6
On, air cylinder support is fixed by screws on valve body 2；Cylinder passes through cylinder connector the 8th, shaft coupling the 9th, shaft coupling
Pin 10 is connected with spool 12；It equipped with O RunddichtringO 14 on spool 12, is placed in valve body 2, it is ensured that gas
The positive sealing of body；Between spool 12 and valve body 2, limited location screw 13 carries out spacing and spline；Valve design
There is hangers, be directly embedded into and be arranged between mould die and mould bases, it is ensured that the reliability of installation, and just
In transplanting；Gas injection nozzle 15 be designed with hollow tubular, reduce the loss of gas injection pressure；Gas injection nozzle
15 cross sectional shapes can design according to the cross sectional shape size of bullet, to adapt to the system of different cross section shape size
Part is molded；Gas injection nozzle 15 and spool 12 use thread connection, it is simple to change；Gas injection nozzle 15 axis with
Mold cavity axis prime direction is consistent, it is ensured that bullet departs from after nozzle stably at melt under pressed gas driving
Centre penetrates；Gas injection nozzle 15 stretches into cavity portion and is divided into two sections, and epimere coordinates with bullet, fixes during injecting glue
Bullet and utilize bullet cover prevent melten gel enter gas channel, wrapped up by melten gel during hypomere injecting glue, it is ensured that after
Positive sealing during continuous gas injection；This gas injection device is driven spool forward-reverse by thin cylinder 5, it is achieved gas injection
With extraction action.Spool 12 cross section, more than the die cavity cross section in die, utilizes the ladder of die end face and spool
It is spacing with the position loosed core that face realizes spool gas injection.When being molded larger cross-section product at gas injection nozzle 15 and bullet
The cooperation section milling plane of ball, in hypomere design step the milling of gas injection nozzle 15 during shaping small cross sections product
Scabble face, it is ensured that the processing technology of nozzle is simultaneously easily installed.
The present invention, compared with technical background, has the advantages that (1) gas injection nozzle is hollow tubular, subtracts
Little gas injection pressure loss；(2) gas injection nozzle is axially consistent with mold cavity axis prime direction, it is ensured that bullet
Initial direction of propulsion；(3) embedded installation is used, reliable and stable, and be easy to transplant；(4) gas injection nozzle
Design reduce machining accuracy and manufacturing cost, and reliably avoid the problem that melten gel enters nozzle, it is achieved
Reliably sealing to gas；(5) what gas injection nozzle stretched into die cavity section can targeted design, it is ensured that should
The versatility of gas injection device；(6) advance and retreat of thin cylinder control spool, easy to operate, reliable in action are applied.
Brief description
Fig. 1 is gas injection device general assembly drawing.
Fig. 2 is valve core structure schematic diagram.
Fig. 3 is valve body structure schematic diagram.
Fig. 4 is big footpath gas injection nozzle structural representation.
Fig. 5 is path gas injection nozzle structural representation.
Fig. 6 is gas injection device operating diagram.
Detailed description of the invention
The present invention will be further described below in conjunction with the accompanying drawings:
Gas injection device general assembly drawing is as shown in Figure 1.This device of gas injection device includes that the 2nd, plug the 1st, valve body seals
Pad the 3rd, reducing diameter high voltage gas-tpe fitting the 4th, SDA thin cylinder the 5th, air cylinder support the 6th, adjusting nut is the 7th,
Cylinder connector the 8th, shaft coupling the 9th, coupled axle-pin the 10th, flange the 11st, spool the 12nd, spool stop screw the 13rd, O type
Sealing ring the 14th, gas injection nozzle 15.Reducing diameter high voltage gas-tpe fitting the 4th, flange 11 and valve body 2 thread connection；
Cylinder 5 is bolted on air cylinder support 6, and air cylinder support is fixed by screws on valve body 2；Gas
Cylinder is connected with spool 12 by cylinder connector the 8th, shaft coupling the 9th, coupled axle-pin 10；Equipped with O type on spool 12
Sealing ring 14, is placed in valve body 2；Between spool 12 and valve body 2, limited location screw 13 carries out spacing and spline；
Valve design has hangers, is directly embedded into and is arranged between mould die and mould bases；Gas injection nozzle 15 is designed as hollow
Tubulose, and cross sectional shape can design according to the cross sectional shape size of bullet；Gas injection nozzle 15 and spool 12
Use thread connection；This gas injection device is driven spool forward-reverse by thin cylinder 5, it is achieved gas injection and extraction
Action.
Valve core structure as in figure 2 it is shown, spool use hollow structure, gases at high pressure by hollow drive bullet to
Front motion.Including O type seal groove 201, O type seal groove and valve body fit tightly guarantee spool and valve body it
Between sealing；Internal thread 202 can change different nozzles for various sizes of bullet；Gas injection port 3 is used
In conveying high-pressure gas；Spool limit convex 204 prevents valve core movement stroke excessive；Spool stopper slot 205 is used
In installing stop screw, prevent spool along axis rotation；Pin hole 207 for being connected spool with shaft coupling；
Plane 206 is used as positioning plane of reference when spool is installed, in order to spool stop screw can align stopper slot smoothly
205 screw in.
Valve body structure is as it is shown on figure 3, for ensureing that gas injection device forms good coordinating with mould, valve body is provided with
Two convex shoulder 301 is installed；For convenience of installing, valve body bores a horizontal stroke respectively and the 302nd, erects 303 holes, use plug
Closure, prevents high pressure gas leakage；Valve body is connected with air cylinder support by installing hole 305；Hole the 304th, 306
It is respectively used to high-pressure air pipe joint and flange are installed；Counterbore 307 is used for installing spacing rotation stopping screw, to limit
Valve core rotation, it is ensured that spool accurate positioning.
Big footpath gas injection nozzle such as Fig. 4, this larger-size product of nozzle needle pair cross-section and design.Joining with bullet
Close section milling and obtain spanner flat 401, in order to the installation of nozzle and dismounting；Through hole 402 is used for injecting high pressure gas
Body, drives bullet；Spacing shoulder 403 is spacing for the installation of nozzle；Screw thread 404 is for gas injection nozzle
It is connected and fixed.
Path gas injection nozzle such as Fig. 5, the less product of this nozzle needle pair cross-section size and design.In hypomere milling
Obtain spanner flat 501, in order to the installation of nozzle and dismounting；Through hole 502 is used for injecting gases at high pressure, drives
Bullet；Spacing shoulder 503 is spacing for the installation of nozzle；Screw thread 504 is connected and fixed for gas injection nozzle.
This gas injection is mounted at body and drives the duty in bullet assisted injection molding process as shown in Figure 6: cylinder 5
Driving spool 12 to move up, until its end face props up die 18 lower surface, gas injection nozzle 15 stretches into mould
Inside die cavity；Bullet 16 is enclosed within gas injection nozzle 15, and melten gel injects and is pressed on nozzle by bullet and wraps up bullet
Ball 16 and gas injection nozzle 15；Then gases at high pressure inject via gas injection nozzle 15, drive bullet 16 to depart from note
Gas jets 15 simultaneously penetrates forward in melten gel, complete filling, pressurize, after cooling and shaping, air venting；Gas
Spool 12 is extracted out downwards by cylinder, and gas injection nozzle 15 detaches die cavity, die sinking pickup；And exhaust hood 5 effect will
Spool 12 is released and is resetted, and prepares next injection cycle.
Claims (3)
1. a simple in construction, the gas injection device for gas-powered bullet assisted injection molding process of reliable in action, it is characterized in that: this device includes plug (1), valve body (2), gasket seal (3), reducing diameter high voltage gas-tpe fitting (4), SDA thin cylinder (5), air cylinder support (6), adjusting nut (7), cylinder connector (8), shaft coupling (9), coupled axle-pin (10), flange (11), spool (12), spool stop screw (13), O RunddichtringO (14), gas injection nozzle (15), reducing diameter high voltage gas-tpe fitting (4), flange (11) and valve body (2) thread connection；Cylinder (5) is bolted on air cylinder support (6), and air cylinder support is fixed by screws on valve body (2)；Cylinder (5) is connected with spool (12) by cylinder connector (8), shaft coupling (9), coupled axle-pin (10)；It equipped with O RunddichtringO (14) on spool (12), is placed in valve body (2), it is ensured that the positive sealing of gas；Between spool (12) and valve body (2), limited location screw (13) carries out spacing and spline；Valve design has hangers, is directly embedded into and is arranged between mould die and mould bases, it is ensured that the reliability of installation, and is easy to transplant；Gas injection nozzle (15) be designed with hollow tubular, reduce the loss of gas injection pressure；Gas injection nozzle (15) cross sectional shape can design according to the cross sectional shape size of bullet, and the product to adapt to different cross section shape size is molded；Gas injection nozzle (15) uses with spool (12) threadeds, it is simple to change；Gas injection nozzle (15) axis is consistent with mold cavity axis prime direction, it is ensured that bullet depart under pressed gas driving after nozzle stably in the melt between penetrate；Gas injection nozzle (15) stretches into cavity portion and is divided into two sections, and epimere coordinates with bullet, fix during injecting glue bullet and utilize bullet cover prevent melten gel enter gas channel, wrapped up by melten gel during hypomere injecting glue, it is ensured that positive sealing during follow-up gas injection；This gas injection device is driven spool forward-reverse by thin cylinder (5), it is achieved gas injection and extraction action.
2. the gas injection device for gas-powered bullet assisted injection molding process of a kind of simple in construction according to claim 1, reliable in action, it is characterized in that: spool (12) cross section more than the die cavity cross section in die, utilizes the cascaded surface of die end face and spool to realize spool gas injection spacing with the position loosed core.
3. the gas injection device for gas-powered bullet assisted injection molding process of a kind of simple in construction according to claim 1, reliable in action, it is characterized in that: when being molded larger cross-section product at the section of the cooperation milling plane of gas injection nozzle (15) and bullet, at the hypomere design step milling plane of gas injection nozzle (15) during shaping small cross sections product, it is ensured that the processing technology of spray is simultaneously easily installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620061947.8U CN205614928U (en) | 2016-01-22 | 2016-01-22 | A gas injection device that is used for gas drive shot to assist shooting technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620061947.8U CN205614928U (en) | 2016-01-22 | 2016-01-22 | A gas injection device that is used for gas drive shot to assist shooting technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205614928U true CN205614928U (en) | 2016-10-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620061947.8U Withdrawn - After Issue CN205614928U (en) | 2016-01-22 | 2016-01-22 | A gas injection device that is used for gas drive shot to assist shooting technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205614928U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105643874A (en) * | 2016-01-22 | 2016-06-08 | 华东交通大学 | Gas injection device used for gas-drive auxiliary pellet injection molding technology |
-
2016
- 2016-01-22 CN CN201620061947.8U patent/CN205614928U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105643874A (en) * | 2016-01-22 | 2016-06-08 | 华东交通大学 | Gas injection device used for gas-drive auxiliary pellet injection molding technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161005 Effective date of abandoning: 20170725 |
|
| AV01 | Patent right actively abandoned |