CN103213250A - Gap type air nozzle for gas-assisted injection molding mould - Google Patents
Gap type air nozzle for gas-assisted injection molding mould Download PDFInfo
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- CN103213250A CN103213250A CN 201310115149 CN201310115149A CN103213250A CN 103213250 A CN103213250 A CN 103213250A CN 201310115149 CN201310115149 CN 201310115149 CN 201310115149 A CN201310115149 A CN 201310115149A CN 103213250 A CN103213250 A CN 103213250A
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- air nozzle
- valve
- air
- gap type
- channel
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Abstract
The invention discloses a gap type air nozzle for a gas-assisted injection molding mould. The gap type air nozzle comprises an air nozzle body, wherein the inner part of the air nozzle body is provided with a channel which penetrates through the gap type air nozzle body from front to back; the channel is internally and sequentially sleeved with an air nozzle core and a screw plug from front to back; a spring is arranged between the air nozzle core and the air nozzle body and is used for orientating the screw plug by the air nozzle core; and the screw plug is internally provided with an air channel. A sealing ring for sealing the air channel of the screw plug is arranged between the air nozzle core and the screw plug. After a mould cavity is provided with the air nozzle provided by the invention, the process has the characteristics that (1) the requirements on the filling balance of a pouring gate of a pouring system are not high; and (2) the design precision requirements on the air channel are relatively low, and the length and the position of the air channel can be adjusted according to a mould trial condition.
Description
Technical field
The present invention relates to the technology of die manufacturing field, be specifically related to a kind of clearance type valve.
Background technology
The air-auxiliary injection forming process requires very strictness for filling morphology, air flue design and the molding technological condition of melt, and 3 conditions collocation are coordinated to obtain desirable production effect.Melt filling form depends primarily on the design of die casting system and air flue.The air flue design comprises the distribution of intake type, air inlet position, airway dimension and air flue.The selection of gate location, arrange and to make every effort to make gas to reach the position that needs to eliminate defective, cause defective because the drag effect of melt shortening gas charges into length when avoiding gas flow along the direction of melt flows.
The intake method that air-auxiliary injection forming large-scale plastic parts injection mould usually adopts is air inlet in the mold cavity, promptly adopt air inlet valve technical gas to inject by the valve that is arranged in the mold cavity, to try one's best near cast gate, so that gas flow direction is consistent with the melt flows direction in the valve position.Therefore, valve also is crucial parts, affects product quality.
Summary of the invention
The purpose of this invention is to provide a kind of crack type valve, to satisfy the requirement of gas assisted injection molding technology to valve.
For achieving the above object, the technical solution adopted in the present invention is: a kind of clearance type valve that is used for the air-auxiliary injection forming mould is provided, comprise the valve body, the valve body interior has the passage that in the past connects self backward, is set with valve inside and plug screw in the passage backward successively in the past; Be provided with spring between valve inside and the valve body, be used for the directed plug screw of valve inside; Be provided with air flue in the described plug screw.
Be provided with the sealing ring of the air flue that is used to seal plug screw between described valve inside and the plug screw.
After mold cavity advanced valve provided by the present invention, this technology had following characteristics:
(1) less demanding to the filling harmony of running gate system cast gate;
(2) requirement of the design accuracy of air flue is relatively low, and air flue length and position can be adjusted according to the die trial situation.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Wherein, 1, valve body; 2, spring; 3, valve inside; 4, plug screw; 5, sealing ring.
The specific embodiment
As shown in Figure 1, the clearance type valve that this is used for the air-auxiliary injection forming mould comprises valve body 1, and there is the passage that in the past connects self backward valve body 1 inside, is set with valve inside 4 and plug screw 4 in the passage backward successively in the past; Be provided with spring 2 between valve inside 4 and the valve body 1, be used for valve inside 4 directed plug screws 4; Be provided with air flue in the described plug screw 4.
Be further to improve the pressurize effect, be provided with the sealing ring 5 of the air flue that is used to seal plug screw 4 between described valve inside 4 and the plug screw 4.After stopping gas injection, valve inside 4 moves backward under the effect of spring 2 and props up plug screw 4, owing to there is sealing ring 5 that better sealing is provided, the pressurize effect will further be guaranteed.
Claims (2)
1. the clearance type valve that is used for the air-auxiliary injection forming mould comprises valve body (1), it is characterized in that: there is the passage that in the past connects self backward valve body (1) inside, is set with valve inside (4) and plug screw (4) in the passage backward successively in the past; Be provided with spring (2) between valve inside (4) and the valve body (1), be used for the directed plug screw of valve inside (4) (4); Described plug screw is provided with air flue in (4).
2. according to the described valve of claim 1, it is characterized in that: the sealing ring (5) that is provided with the air flue that is used to seal plug screw (4) between described valve inside (4) and the plug screw (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310115149 CN103213250A (en) | 2013-04-06 | 2013-04-06 | Gap type air nozzle for gas-assisted injection molding mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310115149 CN103213250A (en) | 2013-04-06 | 2013-04-06 | Gap type air nozzle for gas-assisted injection molding mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103213250A true CN103213250A (en) | 2013-07-24 |
Family
ID=48811566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310115149 Pending CN103213250A (en) | 2013-04-06 | 2013-04-06 | Gap type air nozzle for gas-assisted injection molding mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103213250A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108312429A (en) * | 2018-04-18 | 2018-07-24 | 温州职业技术学院 | A kind of gas needle for injection molds |
-
2013
- 2013-04-06 CN CN 201310115149 patent/CN103213250A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108312429A (en) * | 2018-04-18 | 2018-07-24 | 温州职业技术学院 | A kind of gas needle for injection molds |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130724 |