CN206493546U - Gas-assisted molding air tube - Google Patents
Gas-assisted molding air tube Download PDFInfo
- Publication number
- CN206493546U CN206493546U CN201720019721.6U CN201720019721U CN206493546U CN 206493546 U CN206493546 U CN 206493546U CN 201720019721 U CN201720019721 U CN 201720019721U CN 206493546 U CN206493546 U CN 206493546U
- Authority
- CN
- China
- Prior art keywords
- hole
- gas
- pin
- needle guard
- elastic component
- Prior art date
- 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.)
- Active
Links
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of gas-assisted molding air tube, including needle guard, interior pin and elastic component, needle guard is formed with through hole, the afterbody of needle guard is used to be attached in the mounting hole of mould, the head of needle guard is used for the die cavity of connecting mold, and interior pin is axially displaceably arranged in the through hole of needle guard, and inlet channel is formed between interior pin and needle guard, elastic component is arranged on through hole and positioned between needle guard and interior pin, for providing the resilient force opposite with airintake direction on interior pin.When needing gas to be blown into, pin is moved toward airintake direction in gas push, and elastic component is accordingly compressed and puts aside bounce, and gas enters die cavity by inlet channel, when no longer needing gas to be blown into, elastic component resets and drives interior pin to be moved toward the direction opposite with airintake direction.Due to the presence of elastic component, when in use, there is relative movement between interior pin and needle guard, therefore, in forming process, inlet channel is less prone to colloid blocking, is individually changed moreover, being also easier to internal pin.
Description
Technical field
The utility model is related to gas-assisted molding field, more particularly to a kind of gas-assisted molding air tube.
Background technology
Gas-assisted molding technology, which is mainly, injects high pressure nitrogen in the plastic cement melt in mold cavity, so as to mold
Hollow plastic cement products, and the outward appearance of plastic cement products is remained in that completely, can reach saving plastic material, mitigates product weight
Amount, reduction injection pressure and shortening injection cycle and other effects, therefore gas-assisted molding technology are widely used.At present
Common gas-assisted molding technology would generally use air tube, and air tube includes the needle guard and interior pin interfixed, needle guard and interior pin
Between form inlet channel, the head of air tube extends mold cavity, and the afterbody of air tube is received from outside gas simultaneously by entering
Gas passage enters mold cavity.But, because needle guard interfixes with interior pin, after repeatedly shaping is passed through, needle guard and interior pin
Between inlet channel be easily blocked, and also be difficult to realize being individually replaced for interior pin.
Utility model content
The purpose of this utility model is to provide a kind of gas-assisted molding air tube, can effectively solve the problem that inlet channel holds
Not the problem of easily blocked and interior pin does not allow easy independent replacement.
To achieve these goals, gas-assisted molding of the present utility model includes needle guard, interior pin and elastic component with air tube,
Wherein needle guard is formed with through hole, and the afterbody of needle guard is used to be attached in the mounting hole of mould, and the head of needle guard is used for connecting mold
Die cavity, interior pin is axially displaceably arranged in the through hole of needle guard, forms inlet channel between interior pin and needle guard, elastic component peace
Mounted in through hole and positioned between needle guard and interior pin, for providing the resilient force opposite with airintake direction on interior pin.
Compared with prior art, when needing gas to be blown into die cavity, extraneous gas is blown into the mounting hole of mould and promotion
Interior pin is moved toward airintake direction, and elastic component is accordingly compressed and puts aside bounce, and air inlet of the gas between interior pin and needle guard is led to
Road enters die cavity, when no longer needing gas to be blown into, and stops being blown into for extraneous gas, now, elastic component resets and drives interior pin
Moved toward the direction opposite with airintake direction.Due to the presence of elastic component, there is relative shifting when in use, between interior pin and needle guard
Dynamic, therefore, in forming process, inlet channel is less prone to colloid blocking, is individually carried out more moreover, being also easier to internal pin
Change.
It is preferred that the head of interior pin forms choking portion, when that need not blow, choking portion is blocked in the head of through hole, when
During air blowing, interior pin is promoted to airintake direction so that choking portion is moved to die cavity, and inlet channel is opened, and gas can smoothly enter
Enter die cavity with assistant formation product.
Alternatively, choking portion is to form the flange arrangement in interior needle section.
Specifically, through hole includes pin hole, and interior pin includes the needle body part installed in pin hole.
Specifically, needle body part has columned main part, and the outer peripheral face of main part is in one end of the die cavity close to mould
Along axis cut-out formation location division, pin hole there is main pin hole and be connected with main pin hole and diameter less than main pin hole positioning
Hole, the diameter of location division adapts to the diameter of positioning hole so that location division is axially movably positioned at positioning hole, due to outer peripheral face
Part is removed, the gap constituted as inlet channel is formed between location division and positioning hole, simultaneously as location division is with determining
Gap between the hole of position is less than the gap between main pin hole and main part so that gas is not easy to flow backwards.
It is preferred that the same choking portion of the head connection diameter of location division, choking portion is removably blocked in positioning
The head in hole, when that need not blow, choking portion is blocked in the head of through hole, and when blowing, interior pin is promoted to airintake direction,
So that choking portion is moved to die cavity, inlet channel is opened, and gas can smoothly enter die cavity with assistant formation product.
Specifically, the connecting portion for being less than choking portion by diameter between location division and choking portion is connected.
Specifically, interior needle set has the limiting stand being connected with needle body part afterbody, and through hole also has limiting stand hole and is connected to limit
Elastic component hole between position platform hole and pin hole, forms shoulders, limiting stand is axially movable status between elastic component hole and pin hole
The gap constituted as inlet channel is formed in limiting stand hole and between limiting stand hole, elastic component is located at elastic component hole, elasticity
The afterbody of part is connected to limiting stand, and the head of elastic component is connected to shoulders, thereby forms reliable and stable removable frame.
Specifically, limiting stand is formed jagged and then avoided and elastic component in indentation, there towards the periphery on the surface of needle body part
Contact so that blow when, gas can evenly, smooth-going pass through.
Alternatively, limiting stand is cylindric, and it forms symmetrical two smaller part circle towards the periphery on the surface of needle body part and lacked
Mouthful, to reach more preferable air inlet effect.
Specifically, the helicitic texture that needle guard coordinates in the outer peripheral face formation close to its afterbody with mounting hole, can by needle guard
It is fixed on by ground in mould.
It is preferred that needle guard is provided with the operating portion for being formed with and being operated for spanner in the outer peripheral face close to helicitic texture, with convenient
Needle guard is installed.
Brief description of the drawings
Fig. 1 is a kind of decomposing schematic representation of embodiment of the utility model gas-assisted molding air tube.
Fig. 2 is the top view after Fig. 1 assemblings.
Fig. 3 is profiles of the Fig. 2 along line A-A.
Fig. 4 is the schematic diagram of the interior pin in Fig. 1.
Fig. 5 is the schematic diagram at another visual angle of the interior pin in Fig. 1.
Fig. 6 is the top view of the needle guard in Fig. 1.
Fig. 7 is profiles of the Fig. 6 along line B-B.
Embodiment
To describe technology contents of the present utility model, construction feature, the effect realized in detail, below in conjunction with embodiment
And coordinate accompanying drawing to be explained in detail.
Fig. 1 to Fig. 7 shows a kind of embodiment of the utility model gas-assisted molding air tube, in this embodiment,
Air tube 100 includes needle guard 10, interior pin 20 and elastic component 30, wherein, needle guard 10 is formed with through hole 11, and the afterbody of needle guard 10 is attached to
In the mounting hole of mould (not shown), the die cavity of the head connecting mold of needle guard 10, interior pin 20 is axially displaceably arranged on pin
In the through hole 11 of set 10, inlet channel 50 is formed between interior pin 20 and needle guard 10, elastic component 30 is arranged on through hole 11 and positioned at pin
Between set 110 and interior pin 20, for providing the resilient force opposite with airintake direction on interior pin 20, blown when needing gas
When entering die cavity, extraneous gas is blown into mounting hole and promotes interior pin 20 to be moved toward airintake direction, and elastic component 30 is accordingly compressed simultaneously
Bounce is put aside, inlet channel 50 of the gas between interior pin 20 and needle guard 10 enters die cavity, when no longer needing gas to be blown into,
Stop being blown into for extraneous gas, now, elastic component 30 resets and drives interior pin 20 to be moved toward the direction opposite with airintake direction.By
In the presence of elastic component 30, when in use, there is relative movement between interior pin 20 and needle guard 10, therefore, in forming process,
Inlet channel 50 is less prone to colloid blocking, is individually changed moreover, being also easier to internal pin 20.Specifically, elastic component 30
For the spring on interior pin 20.
Fig. 1, Fig. 3 and Fig. 7 are referred to, the head of interior pin 20 forms choking portion 21, when that need not blow, and choking portion 21 is blocked up
Plug is on the head of through hole 11 so that inlet channel 50 is closed, and when blowing, interior pin 20 is promoted to airintake direction, and then is made
Obtain choking portion 21 to move to die cavity, inlet channel 50 is opened, gas is smoothly entered die cavity by inlet channel 50 with assistant formation
Product；Specifically, choking portion 21 is to form the flange arrangement on the interior head of pin 20.
Fig. 1, Fig. 3 and Fig. 7 are referred to, through hole 11 includes pin hole 111, and interior pin 20 includes the needle body part installed in pin hole 111
22.Needle body part 22 has a columned main part 221, and the outer peripheral face of main part 221 is in one end of the die cavity close to mould along axle
Line cut-out formation location division 222, pin hole 111 have main pin hole 112 and be connected with main pin hole 112 and diameter be less than main pin
The positioning hole 113 in hole 112, the diameter of location division 222 adapts to the diameter of positioning hole 113 so that location division 222 is axially movably
Positioning hole 113 is positioned at, because outer peripheral face is removed part, is formed between location division 222 and positioning hole 113 logical as air inlet
The gap that road 50 is constituted, simultaneously as the gap between location division 222 and positioning hole 113 is less than main pin hole 112 and main part
Gap between 221 so that gas is not easy to flow backwards；It is preferred that the same blocking of the head connection diameter of location division 222
Portion 21, choking portion 21 is removably blocked in the head of positioning hole 113；Specifically, pass through between location division 222 and choking portion 21
The connecting portion 223 that diameter is less than choking portion 21 is in smoothing junction.
Fig. 1, Fig. 3 and Fig. 7 are referred to, interior pin 20 has the limiting stand 23 being connected with the afterbody of needle body part 22, and through hole 11 also has
Limited location platform hole 114 and the elastic component hole 115 being connected between limiting stand hole 114 and pin hole 111, elastic component hole 115 and pin hole
Shoulders 116 is formed between 111, limiting stand 23 is axially displaceably located at limiting stand hole 114 and the shape between limiting stand hole 114
The gap passed through into the supplied gas constituted as inlet channel 50, elastic component 30 is located at elastic component hole 115, the afterbody of elastic component 30
Limiting stand 23 is connected to, the head of elastic component 30 is connected to shoulders 116, thereby forms reliable and stable removable frame；Tool
Body, limiting stand 23 is arranged on the afterbody of needle body part 22, for example, can be screwed, to facilitate making；It is preferred that limit
Position platform 23 towards the periphery on the surface of needle body part 22 forms jagged 231 and then avoids connecing with elastic component 30 at breach 231
Touch so that when blowing, gas can evenly, smooth-going pass through, alternatively, limiting stand 23 is cylindric, and it is towards needle body
The periphery on the surface in portion 22 forms symmetrical two smaller part circumferential notch 231, to reach preferably air inlet effect.
Referring to Fig. 1, the helicitic texture 12 that needle guard 10 coordinates in the outer peripheral face formation close to its afterbody with mounting hole, with
Needle guard 10 is securely fixed in mould；Needle guard 10 is provided with the outer peripheral face close to helicitic texture 12 and is formed with for spanner operation
Operating portion 13, with facilitate install needle guard 10.
Compared with prior art, due to the presence of elastic component 30, gas-assisted molding air tube of the present utility model makes
Used time, there is relative movement between interior pin 20 and needle guard 10, therefore, in forming process, inlet channel 50 is less prone to colloid
Block, individually changed moreover, being also easier to internal pin 20.
Above disclosed is only preferred embodiments of the present utility model, can not limit the utility model with this certainly
Interest field, therefore equivalent variations made according to present utility model application the scope of the claims still fall within the utility model and are covered
Scope.It must be joined directly together that " connection between structure " in patent application document, which is not represented, specifically implement
In example, it can typically make fillet processing.
Claims (12)
1. a kind of gas-assisted molding air tube, it is characterised in that including：
Needle guard, the needle guard is formed with through hole, and the afterbody of the needle guard is used to be attached in the mounting hole of mould, the needle guard
Head is used for the die cavity of connecting mold；
Interior pin, the interior pin is axially displaceably arranged in the through hole, and air inlet is formed between the interior pin and the needle guard
Passage；And
Elastic component, the elastic component is arranged on the through hole and positioned between the needle guard and the interior pin, for providing and entering
Gas resilient force in opposite direction is on the interior pin.
2. gas-assisted molding air tube as claimed in claim 1, it is characterised in that the head of the interior pin, which is formed, to be blocked
Portion, when that need not blow, the choking portion is blocked in the head of the through hole, and when blowing, the interior pin is by air inlet side
To promotion so that the choking portion is moved to die cavity, the inlet channel is opened.
3. gas-assisted molding air tube as claimed in claim 2, it is characterised in that the choking portion is to be formed described interior
The flange arrangement of needle section.
4. gas-assisted molding air tube as claimed in claim 1, it is characterised in that the through hole includes pin hole, described interior
Pin includes the needle body part installed in the pin hole.
5. gas-assisted molding air tube as claimed in claim 4, it is characterised in that the needle body part has columned master
Body portion, the outer peripheral face of the main part forms location division, the pin in one end of the die cavity close to mould along axis cut-out
Hole has main pin hole and is connected with the main pin hole and diameter is less than the positioning hole of the main pin hole, and the diameter of the location division is fitted
Diameter assigned in the positioning hole so that the location division is axially movably positioned at the positioning hole.
6. gas-assisted molding air tube as claimed in claim 5, it is characterised in that the head connection diameter of the location division
Same choking portion, the choking portion is removably blocked in the head of the positioning hole.
7. gas-assisted molding air tube as claimed in claim 6, it is characterised in that the location division and the choking portion it
Between by diameter be less than the choking portion connecting portion connect.
8. gas-assisted molding air tube as claimed in claim 4, it is characterised in that the interior needle set has and the needle body part
The limiting stand of afterbody connection, the through hole also has limiting stand hole and the bullet being connected between the limiting stand hole and the pin hole
Property part hole, form shoulders between the elastic component hole and the pin hole, the limiting stand is axially displaceably located at the limit
Position platform hole and formed between the limiting stand hole as the inlet channel constitute gap, the elastic component be located at the bullet
Property part hole, the afterbody of the elastic component is connected to the limiting stand, and the head of the elastic component is connected to the shoulders.
9. gas-assisted molding air tube as claimed in claim 8, it is characterised in that the limiting stand is towards the needle body part
The periphery on surface formed jagged and then avoid the contact with the elastic component in the indentation, there.
10. gas-assisted molding air tube as claimed in claim 9, it is characterised in that the limiting stand is cylindric, its face
The circular breach of symmetrical two smaller part is formed to the periphery on the surface of the needle body part.
11. gas-assisted molding air tube as claimed in claim 1, it is characterised in that the needle guard is close to its afterbody
The helicitic texture that outer peripheral face formation coordinates with the mounting hole.
12. gas-assisted molding air tube as claimed in claim 11, it is characterised in that the needle guard is close to the screw thread
The outer peripheral face of structure is provided with the operating portion for being formed with and being operated for spanner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720019721.6U CN206493546U (en) | 2017-01-06 | 2017-01-06 | Gas-assisted molding air tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720019721.6U CN206493546U (en) | 2017-01-06 | 2017-01-06 | Gas-assisted molding air tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206493546U true CN206493546U (en) | 2017-09-15 |
Family
ID=59803039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720019721.6U Active CN206493546U (en) | 2017-01-06 | 2017-01-06 | Gas-assisted molding air tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206493546U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107791471A (en) * | 2017-12-12 | 2018-03-13 | 柳州市鑫裕塑胶有限责任公司 | A kind of Gas Assisted Injection Molding Equipment for being easy to gas to inject |
| CN108312429A (en) * | 2018-04-18 | 2018-07-24 | 温州职业技术学院 | A kind of gas needle for injection molds |
| CN108859012A (en) * | 2018-07-18 | 2018-11-23 | 柳道万和(苏州)热流道系统有限公司 | For the gas-assisted molding device of injection mold and with its hot runner system |
| CN112208493A (en) * | 2019-07-12 | 2021-01-12 | 明门(中国)幼童用品有限公司 | Automatic inflation system |
| CN112208272A (en) * | 2019-07-12 | 2021-01-12 | 明门(中国)幼童用品有限公司 | Tire pressure measurement auxiliary device |
| CN112848136A (en) * | 2020-12-31 | 2021-05-28 | 宁波福尔达智能科技股份有限公司 | Gas-assisted mold gas needle and gas-assisted device |
-
2017
- 2017-01-06 CN CN201720019721.6U patent/CN206493546U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107791471A (en) * | 2017-12-12 | 2018-03-13 | 柳州市鑫裕塑胶有限责任公司 | A kind of Gas Assisted Injection Molding Equipment for being easy to gas to inject |
| CN108312429A (en) * | 2018-04-18 | 2018-07-24 | 温州职业技术学院 | A kind of gas needle for injection molds |
| CN108859012A (en) * | 2018-07-18 | 2018-11-23 | 柳道万和(苏州)热流道系统有限公司 | For the gas-assisted molding device of injection mold and with its hot runner system |
| CN108859012B (en) * | 2018-07-18 | 2024-03-08 | 柳道万和(苏州)热流道系统有限公司 | Gas auxiliary forming device for injection mold and hot runner system with same |
| CN112208493A (en) * | 2019-07-12 | 2021-01-12 | 明门(中国)幼童用品有限公司 | Automatic inflation system |
| CN112208272A (en) * | 2019-07-12 | 2021-01-12 | 明门(中国)幼童用品有限公司 | Tire pressure measurement auxiliary device |
| CN112208272B (en) * | 2019-07-12 | 2023-06-27 | 明门(中国)幼童用品有限公司 | Tire pressure measurement auxiliary device |
| CN112848136A (en) * | 2020-12-31 | 2021-05-28 | 宁波福尔达智能科技股份有限公司 | Gas-assisted mold gas needle and gas-assisted device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206493546U (en) | Gas-assisted molding air tube | |
| CN206937873U (en) | A kind of ejecting structure of injection mold | |
| CN208543804U (en) | A kind of automotive seat blow mold | |
| CN208946608U (en) | Injection mold with Pneumatic demoulding device | |
| CN207496000U (en) | One kind is counter to demould medical box cover die | |
| CN205997285U (en) | A kind of die venting structure | |
| CN211868595U (en) | Pressure regulation type extruding and blowing device for producing milk bottle caps | |
| CN206765290U (en) | The shellproof dropping control device of cast gate for mould | |
| CN204136356U (en) | Initiative exhaust precise injection molding mould | |
| CN205570568U (en) | Diffusion mouth structure of plastics spraying pump | |
| CN206230851U (en) | Pelletizing sieve plate | |
| CN206661822U (en) | A kind of efficent electronic throttle valve body cleaning device | |
| CN204487943U (en) | For the nozzle of injection machine | |
| CN203305467U (en) | Injection nozzle of injection molding machine | |
| CN204673849U (en) | Disposable cutlery mould | |
| CN210880461U (en) | Spring air hole sleeve | |
| CN207105507U (en) | A kind of vehicle-mounted ashtray body mold | |
| CN209698015U (en) | A kind of outlet needle construction of automobile parts mold | |
| CN208825473U (en) | A kind of wheelchair spanner mold | |
| CN207070853U (en) | A kind of compressed air spray head for being used to make cigarette sky cylinder | |
| CN219581618U (en) | Simple and practical tool for adsorbing sand grains in cavity | |
| CN211993873U (en) | EPP product demolding is with ejecting structure of steam | |
| CN206242458U (en) | A kind of die head of single screw extrusion machine | |
| CN217373330U (en) | A blow gas control gas circuit structure of arranging for flexible glue injection mould | |
| CN205219610U (en) | Disposable tableware mould |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |