CN102848520A - Water needle device for water-assisted injection molding production - Google Patents
Water needle device for water-assisted injection molding production Download PDFInfo
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- CN102848520A CN102848520A CN2012103466235A CN201210346623A CN102848520A CN 102848520 A CN102848520 A CN 102848520A CN 2012103466235 A CN2012103466235 A CN 2012103466235A CN 201210346623 A CN201210346623 A CN 201210346623A CN 102848520 A CN102848520 A CN 102848520A
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- liquid drugs
- needle device
- drugs injection
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Abstract
The invention discloses a water needle device for water-assisted injection molding production. The water needle device comprises a water needle body, wherein an elastic head device is arranged at the front end of the water needle body, and a water channel is arranged in the water needle body; a water groove is arranged at a water inlet of the water channel; an air channel is arranged in the middle of the water needle body; and a valve is arranged at an air inlet of the air channel. The water needle device provided by the invention has the beneficial effects that the water channel and the air channel are arranged in the water needle body, so that a water-assisted injection molding technology has the advantage of water-assistant injection molding, besides the advantage of an air-assisted formation technology, thus, a finger-type effect caused via a plastic component which is large in volume and thinner in wall and is manufactured via the water-assisted injection molding technology can be effectively avoided.
Description
Technical field
The present invention relates to a kind of production equipment that water shaping is produced that is applied to, be specifically related to a kind of water needle device that water shaping is produced that is applied to.
Background technology
The water assisted injection molding process is a kind of novel plastic injection molding technology that latest development is got up on the basis of gas aided injection mould, and its principle is that the packing stage in conventional injection mo(u)lding utilizes the relatively low water liquid of pressure to replace the resin in the die cavity to carry out pressurize.Because this new technology makes product design and manufacturing have better flexibility and the free degree, thus as goods lightweight, relative cost is low, molding cycle is short etc. that this technology is paid close attention to widely.
The auxiliary injection mo(u)lding of water by five basic step compositions from the injection melt to die cavity then injection water and the core that more reloads; The hydraulic pressure of pressurize section is kept; Thereby the last realization of release of pressure and the emptied of water demoulding.The links such as key technology major control water filling, draining and the hydraulic pressure control of the auxiliary injection mo(u)lding of water.Water injection pressure, the discharge control uniformity that will affect product wall thickness not in place.Particularly water in long straight water channel penetrate evenly and steadily, the moulding hollow rate is larger.But near the water inlet, easily produce erratic fluctuations.In variable cross-section and L shaped water channel, water penetrate easy generation finger-type effect.Draining does not have a great impact the quality of goods smoothly.This is the technical problem that we generally face solution.And at present water shaping technology liquid drugs injection mainly is to be the fluid forming technique with opening, and major embodiment is that the current front end directly contacts goods.
Although water-aid injection molding is the large and thinner plastic components of wall of those volumes of moulding better, but in becoming the product process, very easily form finger-type, finger-type refers in penetrating process, the water channel that penetration by water goes out to set, enter the branch that the goods thin-wall regions forms the finger shape, the mechanical property of these defective effect goods.Liquid drugs injection is the critical elements that water under high pressure enters mold cavity, and its version and size have direct impact to moulding.In water aided injection forming, water flows along the thick wall area of resistance minimum.Water channel is used for guiding water penetrating in melt in the goods, and the version of water channel and size are to penetrating important.Be accompanied by people more and more higher to the requirement of shape of product and presentation quality.For the production of the larger media lines of diameter, use air-auxiliary injection forming process, after air flue forms, not only there is larger Residual Wall Thickness, the danger that also can exist melt to flow downward along die wall is so that there is limitation in this technology.The water shaping technology also can address the above problem except the advantage with gas assisted molding technology.
Summary of the invention
The object of the invention is to propose a kind of water needle device that water shaping is produced that is applied to, easily form finger-type in the process in the past to solve, affect the problem of the mechanical property of goods.
For reaching this purpose, the present invention by the following technical solutions:
A kind of water needle device that is applied to water shaping production, comprise the liquid drugs injection main body, the front end of described liquid drugs injection main body is provided with warhead installation, be provided with water channel in the described liquid drugs injection main body, described water channel the water inlet be provided with tank, be provided with air flue in the middle of the described liquid drugs injection main body, the air inlet place of described air flue is provided with valve.
As a kind of preferred, described water channel is a plurality of, in described liquid drugs injection main body centered by air flue around setting.
Further, the plug in the described valve can be spheroidal, can also be the ball taper.
Especially, be provided with sealing ring between described liquid drugs injection main body and the casing.
Further, described liquid drugs injection main body is stuck in it in casing by positioning step, and is fixed on the casing by slide block.
Beneficial effect of the present invention is: owing to being provided with water channel and air flue in the liquid drugs injection main body, make the water shaping technology except the advantage with gas assisted molding technology, also have advantages of simultaneously water shaping itself, effectively avoided the finger-type effect that when the plastic components that wall is thinner with water shaping technique manufacturing volume is large, produces.
Description of drawings
A kind of water needle device schematic diagram that is applied to water shaping production that Fig. 1 specific embodiment of the invention 1 provides;
A kind of water needle device liquid drugs injection main body schematic diagram that is applied to water shaping production that Fig. 2 specific embodiment of the invention 1 provides;
Fig. 3 is that the A-A of Fig. 2 is to profile;
Fig. 4 is the sectional view of Fig. 2.
Among the figure:
1, valve; 2, tank; 3, liquid drugs injection main body; 4, sealing ring; 5, bullet; 6, water channel; 7, slide block a; 8, slide block b; 9, positioning step; 10 air flues.
The specific embodiment
Further specify technical scheme of the present invention below in conjunction with accompanying drawing and by the specific embodiment, as shown in Figures 1 to 4, a kind of water needle device that is applied to water shaping production, comprise liquid drugs injection main body 3, the front end of liquid drugs injection main body 3 is provided with bullet 5, is provided with water channel 6 in the liquid drugs injection main body 3, water channel 6 the water inlet be provided with tank 2, be provided with air flue 10 in the middle of the described liquid drugs injection main body 3, the air inlet place of described air flue 10 is provided with valve 1.Be provided with positioning step 9 on the liquid drugs injection main body 3, positioning step 9 just can be fixed on liquid drugs injection main body 3 in the casing, by slide block a7 and slide block b8 it is embedded within the fuselage, is that liquid drugs injection main body 3 is difficult for being subjected to displacement in casing.
As shown in Figure 4, as a kind of preferred, water channel 6 be a plurality of, liquid drugs injection main body 3 interior centered by air flue around setting.
Further, the plug in the valve 1 can be spheroidal, can also be the ball taper.
Especially, be provided with sealing ring 4 between liquid drugs injection main body 3 and the casing.
The present invention is in when work, front and back mould matched moulds, and flash groove stops the oil cylinder return, seals goods and flash groove connecting before.Material is chewed into glue, behind the full product of mould filling, stop injection moulding, enter the connecting before stoping oil cylinder to pull open to open goods and flash groove of flash groove in the goods inside at line position oil cylinder pushing bullet 5, line position oil cylinder pushing bullet 5 is behind the position that requires, penstock is opened, and water is filled into goods inside by tank 2 via water channel 6 and promotes bullet 5 advance in the cooling curing product under hydraulic pressure, and goods are flowed out by flash groove in goods internal sizes position simultaneously.Behind bullet 5 complete pushing out products, stop water filling.Gas unidirectional enters the position that goods inside also replaces before water filling fully thereby gas blows air valve 1 Compress Spring, and water passes through water channel 6 via tank 2 outflow goods.Then rear mold is opened, line position oil cylinder return.After ejecting mechanism pushing-off product and overflow colloid, product broke away from rear mold taking-up product fully, the ejecting mechanism return was put into bullet 5.
The present invention by water channel 6 and air flue 10 are concentrated on an integral body, utilizes valve steel ball control air flue to open and close, thereby realizes that water channel 6 and air flue 10 replace on-off action.This device is put in liquid drugs injection front end bullet assistant formation glue position, each moulding, and the wall thickness that is conducive to goods is even, simultaneously, and the checking that has been easy to get of the cooling effect of water.Because water directly carries out internal cooling to plastic in die cavity, the heat exchange of water and melt is very fast, and water shaping can significantly shorten cool time.Front end glue position bullet guiding, the front end temperature is difficult for being cooled off fast by water.Can improve the plasticity of material.
Structure of the present invention is relatively simple, good operability, the qualification rate of production efficiency and goods of having improved, applicable various repacking injection molding machines are produced simultaneously, highly versatile, the finger-type effect that has produced when effectively having solved the plastic components that wall is thinner making volume greatly with water shaping technique.
Above embodiment has just set forth basic principle of the present invention and characteristic; the present invention is not limited by above-described embodiment; without departing from the spirit and scope of the present invention, the present invention also has various variations and change, and these variations and change all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (5)
1. one kind is applied to the water needle device that water shaping is produced, comprise the liquid drugs injection main body, it is characterized in that: the front end of described liquid drugs injection main body is provided with warhead installation, be provided with water channel in the described liquid drugs injection main body, described water channel the water inlet be provided with tank, be provided with air flue in the middle of the described liquid drugs injection main body, the air inlet place of described air flue is provided with valve.
2. a kind of water needle device that water shaping is produced that is applied to according to claim 1, it is characterized in that: described water channel is a plurality of, in described liquid drugs injection main body centered by air flue around setting.
3. a kind of water needle device that water shaping is produced that is applied to according to claim 1, it is characterized in that: the plug in the described valve can be spheroidal, can also be the ball taper.
4. a kind of water needle device that water shaping is produced that is applied to according to claim 1 is characterized in that: be provided with sealing ring between described liquid drugs injection main body and the casing.
5. a kind of water needle device that water shaping is produced that is applied to according to claim 1, it is characterized in that: described liquid drugs injection main body is stuck in it in casing by positioning step, and is fixed on the casing by slide block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103466235A CN102848520A (en) | 2012-09-18 | 2012-09-18 | Water needle device for water-assisted injection molding production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103466235A CN102848520A (en) | 2012-09-18 | 2012-09-18 | Water needle device for water-assisted injection molding production |
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| Publication Number | Publication Date |
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| CN102848520A true CN102848520A (en) | 2013-01-02 |
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| CN2012103466235A Pending CN102848520A (en) | 2012-09-18 | 2012-09-18 | Water needle device for water-assisted injection molding production |
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| CN (1) | CN102848520A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104552766A (en) * | 2015-01-31 | 2015-04-29 | 长春中拓模塑科技有限公司 | Injection molding system of hollow-pipe product of thermoplastic resin and molding method |
| CN104552745A (en) * | 2015-01-31 | 2015-04-29 | 长春中拓模塑科技有限公司 | Injection molding system for thermoplastic resin hollow tube products |
| CN105599246A (en) * | 2016-01-22 | 2016-05-25 | 华东交通大学 | Simple and reliable water injecting and draining device for water-driving projectile assisted injection molding process |
| CN106217774A (en) * | 2016-07-29 | 2016-12-14 | 江西通达实业有限公司 | A kind of water pipe moulding process of New type water pipe mould and this mould |
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| CN201342779Y (en) * | 2009-01-06 | 2009-11-11 | 何建军 | Inner bore water inflow and outflow type water assisted injection molding water pin |
| CN101664986A (en) * | 2009-09-24 | 2010-03-10 | 浙江大学 | Movable core type squirt cut device applied to water-assisted injection molding |
| CN101767419A (en) * | 2009-01-06 | 2010-07-07 | 何建军 | Water-aid injection molding water needle |
| CN202781608U (en) * | 2012-09-18 | 2013-03-13 | 宁波舜宇模具有限公司 | Water needle device applied to waster-assisted injection molding production |
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2012
- 2012-09-18 CN CN2012103466235A patent/CN102848520A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201342779Y (en) * | 2009-01-06 | 2009-11-11 | 何建军 | Inner bore water inflow and outflow type water assisted injection molding water pin |
| CN101767419A (en) * | 2009-01-06 | 2010-07-07 | 何建军 | Water-aid injection molding water needle |
| CN101664986A (en) * | 2009-09-24 | 2010-03-10 | 浙江大学 | Movable core type squirt cut device applied to water-assisted injection molding |
| CN202781608U (en) * | 2012-09-18 | 2013-03-13 | 宁波舜宇模具有限公司 | Water needle device applied to waster-assisted injection molding production |
Non-Patent Citations (1)
| Title |
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| 王兴天: "《注塑工艺与设备》", 31 January 2010 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104552766A (en) * | 2015-01-31 | 2015-04-29 | 长春中拓模塑科技有限公司 | Injection molding system of hollow-pipe product of thermoplastic resin and molding method |
| CN104552745A (en) * | 2015-01-31 | 2015-04-29 | 长春中拓模塑科技有限公司 | Injection molding system for thermoplastic resin hollow tube products |
| CN105599246A (en) * | 2016-01-22 | 2016-05-25 | 华东交通大学 | Simple and reliable water injecting and draining device for water-driving projectile assisted injection molding process |
| CN106217774A (en) * | 2016-07-29 | 2016-12-14 | 江西通达实业有限公司 | A kind of water pipe moulding process of New type water pipe mould and this mould |
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Application publication date: 20130102 |
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