CN202878591U - Annular arc-shaped air outlet type external gas auxiliary injection molding air needle - Google Patents
Annular arc-shaped air outlet type external gas auxiliary injection molding air needle Download PDFInfo
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- CN202878591U CN202878591U CN2012202686356U CN201220268635U CN202878591U CN 202878591 U CN202878591 U CN 202878591U CN 2012202686356 U CN2012202686356 U CN 2012202686356U CN 201220268635 U CN201220268635 U CN 201220268635U CN 202878591 U CN202878591 U CN 202878591U
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- Prior art keywords
- air tube
- air
- injection molding
- core body
- arc
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- Expired - Fee Related
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 25
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 30
- 238000005516 engineering process Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides an annular arc-shaped air outlet type external gas auxiliary injection molding air needle, comprising a hollow air needle cylinder and an air needle core, wherein an air inlet end of the air needle cylinder is provided with a needle ring step; an air outlet end of the air needle cylinder is provided with an inner thread; the air needle core comprises a core body and an end cover; the end cover is fixedly arranged at the tail end of the core body; the tail end of the core body is provided with an outer thread section matched with the inner thread of the air needle cylinder; the front end of the core body has a tapered degree; the two sides of the outer thread of the tail end of the core body are symmetrically smoothed to form smoothed parts; and a gas channel is commonly formed by the air needle core and the air needle cylinder. The annular arc-shaped air outlet type external gas auxiliary injection molding air needle has the beneficial effects that 1) the air needle core and the air needle cylinder are convenient to mount and detach; the efficiency is improved and the cost is reduced; and 2) the tail end of the air needle core is matched with the air outlet end of the air needle cylinder to form an annular arc-shaped air channel, so that gas is discharged along an arc-shaped air channel and is uniformly distributed on the surface of a molded piece.
Description
Technical field
The utility model relates to a kind of ring-type arc air-out type extraneous gas aid injection molding air tube.
Background technology
Extraneous gas aid injection molding technology is a kind of of gas assistant injection molding, is mainly used in the injection mo(u)lding.The extraneous gas aid injection molding can produce internal gas aid injection molding produce an effect, and need to not offer air flue in components interior, thereby is widely used in the processing of plastic products.
Gas in the extraneous gas assistant injection molding system generally can enter die cavity via specially designed air tube from external air source, acts on the surface of plastic.Mainly be applicable to put down and have greatly the thin-wall product of rib-like structure owing to extraneous gas aid injection molding technology, farthest be parallel to action face when requiring the gas air inlet.Air tube is mounted on the mould, and the air tube in the existing extraneous gas assistant injection molding system generally is traditional air tube, mainly by the air tube core, and the air tube urceolus, grub screw, water proof ring forms, and intake method is the plastic surface-pressure of concentrating vertical air tube.The advantage of this structure is that point is exerted pressure, but can not satisfy the requirement of extraneous gas aid injection molding technology.
Summary of the invention
In order to overcome existing air tube at intake method and to act on deficiency aspect the gas flow direction on plastic surface, the utility model proposes a kind of ring-type arc air-out type extraneous gas aid injection molding air tube.
Ring-type arc air-out type extraneous gas aid injection molding air tube described in the utility model, it is characterized in that: comprise air tube cylinder, the air tube core of hollow, the inlet end of described air tube cylinder arranges the needle cycle step; The outlet side of described air tube cylinder arranges internal thread; Described air tube core comprises core body and end cap, and described end cap is fixed on the end of described core body; The external thread section of the internal thread coupling of the terminal setting of described core body and air tube cylinder, the front end of described core body is with tapering; The external thread section bilateral symmetry of described core body end is scabbled, and forms to scabble the place; Described air tube core and described air tube cylinder form gas passage jointly.
The port inner wall of described outlet side is arranged to arc.
The front end of described core body is offered groove.
Described end cap and described terminal junction have radian, and jointly form the arc airway with the arc of described outlet side.
The outer dia of described needle cycle step is greater than the outer dia of the cylindrical shell of described air tube cylinder.
Described needle cycle step and moving platen arrange cannelure between inserting.
Resistant to elevated temperatures O RunddichtringO is installed in the described cannelure.
The height of described air tube cylinder is greater than the moving platen height of fitting plane of inserting.
The end of described core body is connected with the stub end of the tapering of described front end.
During use, screw after first will the air tube core inserting the air tube cylinder, and the groove by air tube core front end carry out fastening, behind the O RunddichtringO of in the cannelure that moving platen is inserted, packing into, whole air tube cylinder is pressed into from the moving platen back side of inserting, utilizes needle cycle step and mould bases backing plate to fix; The tapering of the front end of air tube core reduces gas flow, has formed annular gas flow channel, along with runner diminishes gradually, so that balanced inlet air forms the arc airway after the end of air tube core cooperates with the outlet side of air tube cylinder; Gases at high pressure enter the airway of mould bases backing plate by nitrogen gas generator, then gas jointly forms gas passage by air tube core and air tube cylinder and gives vent to anger, and farthest is evenly distributed on the plastic surface.
The beneficial effects of the utility model: 1) air tube core and air tube cylinder installation, convenient disassembly, raise the efficiency, reduce cost; 2) form the arc airway after the end of air tube core cooperates with air tube cylinder outlet side, so that gas is given vent to anger along the arc airway, be evenly distributed on the plastic surface.
Description of drawings
Fig. 1 is explosive view of the present utility model
Fig. 2 is installation diagram of the present utility model
Fig. 3 be among Fig. 2 A place enlarged drawing (d1 is the thickness of needle cycle step; The gap at d2 place is the gap of step side and counterbore medial surface, and assembling needs; The gap at d3 place is the reaming gap on the non-length of fit, is beneficial to assembling and exhaust)
Fig. 4 is air tube cored structure figure of the present utility model
Fig. 5 is air tube barrel structure figure of the present utility model
Fig. 6 is the mobile schematic diagrames of gases at high pressure of the present utility model
The specific embodiment
Further specify the utility model below in conjunction with accompanying drawing
With reference to accompanying drawing:
Ring-type arc air-out type extraneous gas aid injection molding air tube described in the utility model comprises air tube cylinder 1, the air tube core 2 of hollow, and the inlet end 11 of described air tube cylinder 1 arranges needle cycle step 111; The outlet side 12 of described air tube cylinder 1 arranges internal thread 121; Described air tube core 2 comprises core body 21 and end cap 22, and described end cap 22 is fixed on the end of described core body 21; The external thread section of internal thread 12 couplings of described core body 21 terminal 211 settings and air tube cylinder 1, the front end 212 of described core body 21 is with tapering; The external thread section bilateral symmetry of described core body 21 ends 211 is scabbled, and forms to scabble place 2111; Described air tube core 2 and the described air tube cylinder 1 common gas passage that forms.
The port inner wall of described outlet side 12 is arranged to arc 122.
The front end 212 of described core body 21 is offered groove 2121.
Described end cap 22 has radian with described terminal 211 junctions, and jointly forms the arc airway with the arc of described outlet side 12.
The outer dia of described needle cycle step 111 is greater than the outer dia of the cylindrical shell of described air tube cylinder 1.
Described needle cycle step 111 and moving platen are inserted cannelure are set between 4.
Resistant to elevated temperatures O RunddichtringO 5 is installed in the described cannelure.
The height of described air tube cylinder 1 is greater than the moving platen height of 4 fitting plane of inserting.
The end 211 of described core body 21 is connected with the stub end of the tapering of described front end 212.
During use, first will the air tube core 2 screw after inserting air tube cylinders 1, and the groove by air tube core 2 front ends 22 carry out fastening, behind the O RunddichtringO 5 of in moving platen is inserted 4 cannelure, packing into, whole air tube cylinder is pressed into from moving platen 4 back sides of inserting, utilizes needle cycle step 111 fixing with mould bases backing plate 3; The tapering of the front end 22 of air tube core 2 reduces gas flow, has formed annular gas flow channel, along with runner diminishes gradually, so that balanced inlet air forms the arc airway after the end 21 of air tube core 2 cooperates with the outlet side 12 of air tube cylinder 1; Gases at high pressure enter the airway 31 of mould bases backing plate 3 by nitrogen gas generator, then gas is given vent to anger by air tube core 2 and the air tube cylinder 1 common gas passage that forms, and farthest is evenly distributed on the plastic surface.
The described content of this specification embodiment only is enumerating the way of realization of utility model design; protection domain of the present utility model should not be regarded as only limiting to the concrete form that embodiment states, protection domain of the present utility model also reaches the equivalent technologies means that design can be expected according to the utility model in those skilled in the art.
Claims (9)
1. ring-type arc air-out type extraneous gas aid injection molding air tube, it is characterized in that: comprise air tube cylinder, the air tube core of hollow, the inlet end of described air tube cylinder arranges the needle cycle step; The outlet side of described air tube cylinder arranges internal thread; Described air tube core comprises core body and end cap, and described end cap is fixed on the end of described core body; The external thread section of the internal thread coupling of the terminal setting of described core body and air tube cylinder, the front end of described core body is with tapering; The external thread section bilateral symmetry of described core body end is scabbled, and forms to scabble the place; Described air tube core and described air tube cylinder form gas passage jointly.
2. ring-type arc air-out type extraneous gas aid injection molding air tube as claimed in claim 1, it is characterized in that: the port inner wall of described outlet side is arranged to arc.
3. ring-type arc air-out type extraneous gas aid injection molding air tube as claimed in claim 1, it is characterized in that: the front end of described core body is offered groove.
4. ring-type arc air-out type extraneous gas aid injection molding air tube as claimed in claim 2, it is characterized in that: described end cap and described terminal junction have radian, and jointly form the arc airway with the arc of described outlet side.
5. ring-type arc air-out type extraneous gas aid injection molding air tube as claimed in claim 1, it is characterized in that: the outer dia of described needle cycle step is greater than the outer dia of the cylindrical shell of described air tube cylinder.
6. ring-type arc air-out type extraneous gas aid injection molding air tube as claimed in claim 5, it is characterized in that: described needle cycle step and moving platen arrange cannelure between inserting.
7. ring-type arc air-out type extraneous gas aid injection molding air tube as claimed in claim 6 is characterized in that: resistant to elevated temperatures O RunddichtringO is installed in the described cannelure.
8. ring-type arc air-out type extraneous gas aid injection molding air tube as claimed in claim 6 is characterized in that: the height of described air tube cylinder is greater than the moving platen height of fitting plane of inserting.
9. ring-type arc air-out type extraneous gas aid injection molding air tube as claimed in claim 1, it is characterized in that: the end of described core body is connected with the stub end of the tapering of described front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202686356U CN202878591U (en) | 2012-06-05 | 2012-06-05 | Annular arc-shaped air outlet type external gas auxiliary injection molding air needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202686356U CN202878591U (en) | 2012-06-05 | 2012-06-05 | Annular arc-shaped air outlet type external gas auxiliary injection molding air needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202878591U true CN202878591U (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202686356U Expired - Fee Related CN202878591U (en) | 2012-06-05 | 2012-06-05 | Annular arc-shaped air outlet type external gas auxiliary injection molding air needle |
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| Country | Link |
|---|---|
| CN (1) | CN202878591U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108327179A (en) * | 2018-01-30 | 2018-07-27 | 吉利汽车研究院（宁波）有限公司 | A kind of nitrogen injector assembly in gas-assist mold |
-
2012
- 2012-06-05 CN CN2012202686356U patent/CN202878591U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108327179A (en) * | 2018-01-30 | 2018-07-27 | 吉利汽车研究院（宁波）有限公司 | A kind of nitrogen injector assembly in gas-assist mold |
| CN108327179B (en) * | 2018-01-30 | 2020-07-24 | 吉利汽车研究院（宁波）有限公司 | Nitrogen nozzle assembly used in gas-assisted mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20150605 |
|
| EXPY | Termination of patent right or utility model |