CN103192493A - Gas-assisted forming die of automobile door handle - Google Patents
Gas-assisted forming die of automobile door handle Download PDFInfo
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- CN103192493A CN103192493A CN2013101203935A CN201310120393A CN103192493A CN 103192493 A CN103192493 A CN 103192493A CN 2013101203935 A CN2013101203935 A CN 2013101203935A CN 201310120393 A CN201310120393 A CN 201310120393A CN 103192493 A CN103192493 A CN 103192493A
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- door handle
- gas
- automobile door
- cavity
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Abstract
The invention discloses a gas-assisted forming die of an automobile door handle. The gas-assisted forming die comprises a cavity and a blowing device, wherein one end of the cavity has a feeding hole, and the other end of the cavity has a discharging hole; the blowing device is used for blowing air into the cavity; an air inlet hole is formed at the bottom of the cavity; and the air inlet hole is connected with the blowing device. The gas-assisted forming die has the advantages that the air inlet hole is formed at the bottom of the cavity so that the condition that the wall thickness of an injection molding product is nonuniform because materials are accumulated at the bottom of the cavity under the action of the gravity of the materials can be avoided; and the gas-assisted forming die can be used for preparing injection molding products with uniform wall thicknesses.
Description
Technical field
The present invention relates to the gas assisted molding mould applications of injecting products, be specifically related to a kind of automobile door handle gas assisted molding mould.
Background technology
The auxilliary technology of gas can be applied in nearly all plastic part fields such as household electrical appliances, automobile, furniture, articles for daily use, office appliances.Some injecting products is owing to function needs cross-sectional area bigger, if injection moulding in a general manner, product will seriously shrink.At this moment, in the process of injection moulding, utilize the gas assisted molding mould, gas is injected in the die cavity of gas assisted molding mould, allow product hollow, just can prevent from shrinking.
When the automobile door handle injection mo(u)lding, be the inner cavity that forms of the door handle that makes injection mo(u)lding on the one hand, economize in raw materials, form the defective of reprinting books in a reduce format when the injection mo(u)lding for remedying door handle on the other hand, existing injection mold generally adopts the gas assisted molding mould, utilizes gas (being generally nitrogen) to carry out aided injection mould when injection moulding.
Existing automobile door handle gas assisted molding mould generally comprises an end and is provided with the die cavity of charging aperture and is used for blowning installation to blowing in the die cavity, and the charging aperture of die cavity is provided with head simultaneously and stretches into air tube in the die cavity, and the air tube afterbody is connected with blowning installation; It is the same end face that the air admission hole of the charging aperture of die cavity and die cavity is positioned at die cavity.Adopt the automobile door handle gas assisted molding mould of this structure, because air admission hole is positioned at the end of die cavity, the gravity effect meeting of material (as sizing material) self causes solid accumulation to cause the wall unevenness of automobile door handle even in cavity bottom.
China utility model patent ZL201120482961.2 discloses the auxilliary mould of the outer door handle injection moulding gas of a kind of automobile, comprise counterdie, described counterdie is provided with the lower impressions for the moulding handle, also be provided with the material road that is communicated with lower impressions on the described counterdie, be provided with inlet channel in the described counterdie, described inlet channel is communicated with the bottom in material road.The auxilliary mould of the outer door handle injection moulding gas of this automobile is located at air admission hole the bottom in material road, avoided the opening of the internal cavities of automobile door handle to be positioned at the end of automobile door handle, electroplate liquid can not flow into inner chamber, avoid product rejection when electroplating thereby have, the handle head surface of injection mo(u)lding is abundant, do not influence product strength, can not form the advantage of weld bond at handle head place.But still there is the even problem of wall unevenness in it.
Summary of the invention
At above-mentioned problems of the prior art, the invention provides a kind of automobile door handle gas assisted molding mould, efficiently solve the even defect problem that produces of injecting products wall unevenness, effectively shortened the production injection cycle, save the cost on the raw materials for production, improved product surface quality.
A kind of automobile door handle gas assisted molding mould comprises that an end is provided with the die cavity of charging aperture and for the blowning installation to blowing in the die cavity, the bottom of described die cavity is provided with air admission hole, and described air admission hole is connected with blowning installation.
Gas assisted molding mould of the present invention is located at the bottom of die cavity with air admission hole, can prevent like this because of material (as sizing material) thus the gravity effect of self causes solid accumulation to cause the injecting products wall unevenness even in cavity bottom.
Described air admission hole is preferably placed at the zone line of cavity bottom.During use, in the middle of will importing fused materials from the zone line of cavity bottom through the gas of high pressure compressed, when flowing, gas empties the heavy wall cross section by the displacement fused materials in fused materials, gas flows to low pressure and the high-temperature area of die cavity along the minimum direction of resistance, thereby further guarantees the uniformity of product wall thickness.
The other end of described die cavity is provided with discharging opening, and discharging opening can also connect a flash groove, and the volume of described flash groove equals to discharge the volume of the outer material of die cavity substantially, is used for accepting the material of discharging outside the die cavity.
Described flash groove preferably is set to circuitous configuration, is convenient to regulate and control to discharge the flow velocity of the outer material of die cavity.
Be provided with oil cylinder between described discharging opening and flash groove, described oil cylinder comprises slide block and thimble, and described slide block drives thimble and moves up and down, and is used for cutting off or being communicated with discharging opening and flash groove.
Described die cavity can be one, also can be for more than two; The charging aperture of plural die cavity is connected with feed arrangement by material channel, and a plurality of goods of moulding are simultaneously further enhanced productivity.Plural die cavity preferably is symmetrical arranged, effectively to utilize die space.Described material channel is provided with the filling mouth at the end away from die cavity, and described filling mouth is connected with feed arrangement, and it is more convenient to inculcate material by the filling mouth to material channel.
The used gas of described blowning installation is the nitrogen of high pressure compressed.Described blowning installation can adopt existing apparatus, as the auxilliary nozzle of self-closed type gas or air tube etc.
Gas assisted molding mould of the present invention can also be applied to the big product of varied in thickness, as the gas assisted molding mould of the big product of varied in thickness.
Beneficial effect of the present invention:
Gas assisted molding mould of the present invention is located at the bottom of die cavity with air admission hole, thereby can prevent from like this causing solid accumulation to cause the injecting products wall unevenness even in cavity bottom because of the gravity effect of material self.
Gas assisted molding mould of the present invention can be saved 30% raw material, reduces the residual stress of product, makes product indeformable, solves and eliminate product surface shrink mark problem, can be applied to the big product of varied in thickness.
Gas assisted molding mould of the present invention can reduce the clamp force of injection machine, reduces the loss of make-up machine, shortens the production molding cycle time, enhances productivity; Reduce the pressure in the mold cavity, make the loss of mould reduce the service life of improving mould simultaneously.
Description of drawings
Fig. 1 is the structural representation of automobile door handle gas assisted molding mould of the present invention;
Fig. 2 is the structural representation of die cavity in the automobile door handle gas assisted molding mould of the present invention and air admission hole;
Wherein: 1, die cavity, 2, flash groove, 3, feed well, 4, blowning installation, 5, Guan Zui, 6, oil cylinder, 7, air admission hole, 8, charging aperture, 9, discharging opening.
The specific embodiment
As shown in Figure 1 and Figure 2, automobile door handle gas assisted molding mould of the present invention, comprise that an end is provided with charging aperture 8 and the other end is provided with the die cavity 1 of discharging opening 9 and for the blowning installation 4 to blowing in the die cavity 1, the bottom of die cavity 1 is provided with air admission hole 7, air admission hole 7 is connected with blowning installation 4.
This gas assisted molding mould is located at the bottom of die cavity 1 with air admission hole 7, thereby can prevent from like this causing solid accumulation to cause the injecting products wall unevenness even in die cavity 1 bottom because of the gravity effect of material self.
Air admission hole 7 preferably is positioned at the zone line of die cavity 1 bottom, as shown in Figure 2.During use, in the middle of will importing fused materials from the air admission hole 7 of the zone line of die cavity 1 bottom through the gas (as nitrogen) of high pressure compressed, when flowing, gas empties the heavy wall cross section by the displacement fused materials in fused materials, gas flows to low pressure and the high-temperature area of die cavity 1 along the minimum direction of resistance, thereby further guarantees the uniformity of product wall thickness.
The discharging opening 9 of die cavity 1 can also connect a flash groove 2, and the volume of flash groove 2 equals to discharge the volume of the material outside the die cavity 1 substantially, is used for accepting the material of discharging outside the die cavity 1.
Flash groove 2 preferably is set to circuitous configuration, is convenient to regulate and control to discharge the flow velocity of the material outside the die cavity 1.
Be provided with oil cylinder 6 between discharging opening 9 and flash groove 2, oil cylinder 6 comprises slide block and thimble (omit among the figure, do not draw), and slide block drives thimble and moves up and down, and is used for cutting off or being communicated with discharging opening 9 and flash groove 2.
Die cavity 1 can be one, also can be for more than two; The charging aperture 8 of plural die cavity 1 is connected with the feed arrangement of bringing hopper 3 into by material channel, and a plurality of goods of moulding are simultaneously further enhanced productivity.Plural die cavity 1 preferably is symmetrical arranged, effectively to utilize die space.Material channel is provided with at the end away from die cavity 1 and irritates mouth 5, irritates mouth 5 and is connected with the feed well 3 of feed arrangement, and it is more convenient to inculcate material by filling mouth 5 to material channel.
Blowning installation 4 used gases are the nitrogen of high pressure compressed.Blowning installation 4 can adopt existing apparatus, as the auxilliary nozzle of self-closed type gas or air tube etc.
Gas assisted molding mould of the present invention can also be applied to the big product of varied in thickness, as the gas assisted molding mould of the big product of varied in thickness.
When gas assisted molding mould of the present invention uses, open the charging aperture 8 of die cavity 1 and close discharging opening 9 and air admission hole 7, fused materials is passed through successively the feed well 3 of feed arrangement, irritate in mouth 5 and the charging aperture 8 feeding die cavities 1, fused materials runs into the thinner solidification layer of wall thickness formation one deck in the lower die cavity of temperature 1, close the charging aperture 8 of die cavity 1 and open discharging opening 9 by oil cylinder 6, open air admission hole 7, utilize blowning installation 4 in die cavity 1, to blow, in the middle of will importing fused materials from die cavity 1 bottom through the gas of high pressure compressed, when flowing, gas empties the heavy wall cross section by the displacement fused materials in fused materials, gas flows to low pressure and the high-temperature area of die cavity 1 along the minimum direction of resistance, thereby guarantee the uniformity of product wall thickness, the material that is blown is discharged die cavity 1 to flash groove 2 through discharging opening 9 and is recycled.
Above-described embodiment for explanation the present invention's usefulness, is not to be limitation of the present invention only, and any combination in the listed scope of the present invention all can realize effect of the present invention.
Claims (6)
1. automobile door handle gas assisted molding mould, comprise the blowning installation (4) that an end is provided with the die cavity of charging aperture (1) and is used for blowing in the die cavity (1), it is characterized in that: the bottom of described die cavity (1) is provided with air admission hole (7), and described air admission hole (7) is connected with blowning installation (4).
2. automobile door handle gas assisted molding mould according to claim 1 is characterized in that: described air admission hole (7) is positioned at the zone line of die cavity (1) bottom.
3. automobile door handle gas assisted molding mould according to claim 1, it is characterized in that: the other end of described die cavity (1) is provided with discharging opening (9), discharging opening (9) is connected with flash groove (2), and the volume of described flash groove (2) equals to discharge the volume of the outer material of die cavity (1) substantially.
4. automobile door handle gas assisted molding mould according to claim 3 is characterized in that: described flash groove (2) is circuitous configuration.
5. automobile door handle gas assisted molding mould according to claim 3, it is characterized in that: between described discharging opening (9) and flash groove (2), be provided with oil cylinder (6), described oil cylinder (6) comprises slide block and thimble, and described slide block drives thimble and moves up and down.
6. automobile door handle gas assisted molding mould according to claim 1, it is characterized in that: described die cavity (1) is more than two, the charging aperture (8) of plural die cavity (1) is connected with feed arrangement by material channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101203935A CN103192493A (en) | 2013-04-09 | 2013-04-09 | Gas-assisted forming die of automobile door handle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101203935A CN103192493A (en) | 2013-04-09 | 2013-04-09 | Gas-assisted forming die of automobile door handle |
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| Publication Number | Publication Date |
|---|---|
| CN103192493A true CN103192493A (en) | 2013-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101203935A Pending CN103192493A (en) | 2013-04-09 | 2013-04-09 | Gas-assisted forming die of automobile door handle |
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| CN (1) | CN103192493A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104924550A (en) * | 2015-07-13 | 2015-09-23 | 长春富维—江森自控汽车饰件系统有限公司 | Material overflow well structure of air-assisted injection mold |
| CN107042609A (en) * | 2016-12-20 | 2017-08-15 | 柳州通为机械有限公司 | Method Gas assisted injection moulding mould is penetrated before a kind of automotive trim after door handle |
| CN115179508A (en) * | 2022-07-22 | 2022-10-14 | 景津装备股份有限公司 | Shifting fork rocker arm type gravity-assisted core pulling mechanism without oil cylinder and filter plate handle injection mold |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201833539U (en) * | 2010-06-11 | 2011-05-18 | 青岛恒科精密工业有限公司 | Gas-assisted hollow and in-mould negative pressure vacuum injection molding thin-wall molding technology mould |
| CN202088405U (en) * | 2011-06-22 | 2011-12-28 | 深圳市捷讯实业发展有限公司 | Injection mold with blow air-assisting function |
| CN203141765U (en) * | 2013-04-09 | 2013-08-21 | 滁州浩博科技有限责任公司 | Air-assisted forming mould for automobile door handle |
-
2013
- 2013-04-09 CN CN2013101203935A patent/CN103192493A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201833539U (en) * | 2010-06-11 | 2011-05-18 | 青岛恒科精密工业有限公司 | Gas-assisted hollow and in-mould negative pressure vacuum injection molding thin-wall molding technology mould |
| CN202088405U (en) * | 2011-06-22 | 2011-12-28 | 深圳市捷讯实业发展有限公司 | Injection mold with blow air-assisting function |
| CN203141765U (en) * | 2013-04-09 | 2013-08-21 | 滁州浩博科技有限责任公司 | Air-assisted forming mould for automobile door handle |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104924550A (en) * | 2015-07-13 | 2015-09-23 | 长春富维—江森自控汽车饰件系统有限公司 | Material overflow well structure of air-assisted injection mold |
| CN107042609A (en) * | 2016-12-20 | 2017-08-15 | 柳州通为机械有限公司 | Method Gas assisted injection moulding mould is penetrated before a kind of automotive trim after door handle |
| CN115179508A (en) * | 2022-07-22 | 2022-10-14 | 景津装备股份有限公司 | Shifting fork rocker arm type gravity-assisted core pulling mechanism without oil cylinder and filter plate handle injection mold |
| CN115179508B (en) * | 2022-07-22 | 2023-12-26 | 景津装备股份有限公司 | Vertical filter plate handle injection molding die capable of automatically pulling core and demolding |
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| PB01 | Publication | ||
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Application publication date: 20130710 |