CN202539521U - Die seal box ultrahigh vacuum die casting injection moulding apparatus - Google Patents
Die seal box ultrahigh vacuum die casting injection moulding apparatus Download PDFInfo
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- CN202539521U CN202539521U CN2011205606556U CN201120560655U CN202539521U CN 202539521 U CN202539521 U CN 202539521U CN 2011205606556 U CN2011205606556 U CN 2011205606556U CN 201120560655 U CN201120560655 U CN 201120560655U CN 202539521 U CN202539521 U CN 202539521U
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- seal box
- die
- dynamic model
- vacuum
- cover half
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Abstract
The utility model relates to a die seal box ultrahigh vacuum die casting injection moulding apparatus, and the apparatus comprises a front-fix die seal box, a front-fix die, a rear-movable die seal box, a rear-movable die, guide pillars, a vacuum-pumping pipe, and resin sand micropore plugs. A broadside of the front-fix die seal box or the rear-movable die seal box is provided with the vacuum-pumping pipe, the front-fix die seal box and the rear-movable die seal box are closed to became a seal box, vacuum-pumping ports are either arranged at an edge of the front-fix die or the rear-movable die or arranged at an edge of a closed area of the front-fix die and the rear-movable die, the vacuum-pumping ports are connected with a die cavity and an empty space of the seal box, and each of the vacuum-pumping ports is provided with the resin sand micropore plug. The die seal box ultrahigh vacuum die casting injection moulding apparatus reduces vacuum pressure in a vacuum casting die cavity to a range under 5000 Pascal, accelerates fluidity of fusing liquid inside the die cavity, high temperature fusing metal or plastic liquid injected into the die cavity from a feed inlet is obstructed by the resin sand micropore plugs, thereby preventing the fusing metal liquid or plastic liquid from obstructing the vacuum pipe.
Description
Technical field
The utility model relates to the evacuated die-casting process injection moulding apparatus, particularly a kind of mould seal box ultrahigh vacuum die casting injection moulding apparatus.
Background technology
The basic structure of evacuated die-casting process, injection moulding apparatus; Like Chinese patent Granted publication CN101954470A; The utility model name is called " die casting machine evacuated die-casting process system " disclosed content, comprises the die casting vacuum extractor that the vacuum presetting apparatus, vavuum pump, negative-pressure cup, filter, vaccum stop valve of die casting machine and die-casting system are formed.When die casting machine die casting matched moulds; The vavuum pump of evacuated die-casting process system produces negative pressure, the instantaneous gas of taking mould template die cavity and pipeline away, and when molten metal fills type closing passage on schedule; Prevent that molten metal from getting into vacuum pipe, makes molten metal die cast under the state of vacuum.Vacuum in the vacuum pressing and casting mold cavity is high more, and after melt metal or plastic liquid injected mold cavity from charging aperture, fast more in the mold cavity internal mobility, the product quality of die casting was also good more.But; First problem that above-mentioned die casting machine evacuated die-casting process system exists is: along with improving constantly of the vacuum in the mold cavity; Air in the slight void of die casting machine foundry goods thimble and dynamic model is attracted to produce high speed airflow by the high vacuum in the mold cavity and gets into mold cavity; Melt metal or plastic liquid in the direct Impact mould die cavity of air-flow make melt metal or plastic liquid generation turbulent flow generation pore in the mold cavity, influence the quality of product; And oxidation takes place in air-flow and metal in the entering mold cavity or plastic castings under high temperature action, influences the quality of product.Second problem that above-mentioned die casting machine evacuated die-casting process system exists is: the complex structure of vaccum stop valve, operating difficulties, and in the incompatibility, the use of small enterprise's evacuated die-casting process, injection moulding apparatus.
Summary of the invention
The purpose of the utility model is the shortcoming to above-mentioned existence; A kind of mould seal box ultrahigh vacuum die casting injection moulding apparatus is disclosed; In the preceding cover half of the common die casting machine injection mold outside with the back dynamic model, being provided with respectively can be closed, the preceding cover half seal box and the back dynamic model seal box of breakdown, is provided with in the appropriate location of preceding cover half seal box or back dynamic model seal box and takes out true pipe; On the contact-making surface of preceding cover half seal box and back dynamic model seal box, sealing ring is set, forms complete seal box.Take out straight when empty after current cover half seal box and the back dynamic model seal box closure; Seal box and preceding cover half and the middle vaccum interval that forms of back dynamic model; Not only significantly improve the vacuum in the mold cavity, the vacuum pressure in the vacuum pressing and casting mold cavity is reduced in 5000 handkerchiefs, quicken melt metal or the flowability of plastic liquid in mold cavity; And the slight void of die casting machine foundry goods thimble and dynamic model is in vacuum state; Do not have melt metal or plastic liquid in the gas shock mold cavity, oxidation can not take place yet, improve the quality of product.
Second the purpose of the utility model is: to the complex structure of the vaccum stop valve of above-mentioned die casting machine evacuated die-casting process system, the shortcoming of operating difficulties; Vacuumize at die cavity the husky micropore plug of resin is set in the hole, prevent that melt metal or plastic liquid from stopping up vacuum pipe.The husky micropore plug structure of resin is simple, easy to operate.
The purpose of the utility model is achieved in that
Mould seal box ultrahigh vacuum die casting injection moulding apparatus comprises preceding cover half seal box, preceding cover half, back dynamic model seal box, back dynamic model, guide pillar, vacuum-pumping tube and the husky micropore plug of resin.The outside of cover half before preceding cover half seal box is arranged on, back dynamic model seal box is arranged on the outside of back dynamic model, and back dynamic model is provided with the foundry goods thimble with back dynamic model seal box is middle, and the base of back dynamic model seal box is provided with and ejects rod, and the periphery that ejects rod is provided with second sealing ring.Side at preceding cover half seal box or back dynamic model seal box is provided with one or more vacuum-pumping tube, on the contact-making surface of preceding cover half seal box and back dynamic model seal box, first sealing ring is set.Become seal box after current cover half seal box and the back dynamic model seal box closure, seal box and preceding cover half and the middle formation of back dynamic model vaccum interval when vacuumizing.The periphery of preceding cover half seal box and back dynamic model seal box is provided with two or more guide pillar, and preceding cover half seal box can front and back slip on guide pillar with back dynamic model seal box.In preceding cover half and back dynamic model, the cooling water circulating slot is set respectively, the effect of cooling water circulating slot is rapid cooling die.With the closed place of back dynamic model one or more vacuum orifice is set at the edge of preceding cover half or back dynamic model or at preceding cover half, each vacuum orifice is communicated with die cavity and seal box vaccum interval, and the husky micropore plug of resin is set in each vacuum orifice.Select 80-140 purpose fine sand and the phenolic resins of 2-8 weight portion of the high-quality of 92-98 weight portion for use, heating phenolic resins to molten condition and with after fine sand evenly mixes is pressed into resin sand micro-mesh.The effect of the husky micro-mesh of resin is that the metal or the plastic liquid of high-temperature fusion injects mold cavity by the husky micro-mesh obstruct of resin from charging aperture, prevents that molten metal liquid or plastic liquid from stopping up vacuum pipe.
The operation principle of the utility model is:
After preceding cover half seal box and the back dynamic model seal box closure; Start vacuum extractor find time seal box and the interior air of mold cavity; Behind the state of pressure less than 5000 handkerchiefs of air in seal box and the mold cavity; Close the valve of vacuum extractor, be pressed into the metal of high-temperature fusion or plastic liquid in the mold cavity from charging aperture, the mold cavity that the preceding cover half that liquid metal or plastics are pressed into ultra-high vacuum state from charging aperture and back dynamic model are formed; In the mold cavity of ultrahigh vacuum, quicken to flow; Be full of die cavity rapidly and cast workpiece, the metal of high-temperature fusion or plastic liquid inject mold cavity from charging aperture and are intercepted by the husky micro-mesh of resin, prevent that molten metal liquid or plastic liquid from stopping up vacuum pipe.
The utility model and prior art contrast have following advantage:
1, the vaccum interval in the seal box significantly improves the vacuum in the mold cavity; Vacuum pressure in the vacuum pressing and casting mold cavity is reduced in 5000 handkerchiefs; Quicken the flowability of melt metal territory plastic liquid in mold cavity, and the slight void of die casting machine thimble and back dynamic model is in vacuum state, do not have melt metal or plastic liquid in the gas shock mold cavity; Also oxidation can not take place, the precision of foundry goods is high, the pore rank is low more, yield rate is high.
2, vacuumize at each the husky micropore plug of resin is set in the hole, the metal of high-temperature fusion or plastic liquid inject mold cavity from charging aperture and are intercepted by the husky micro-mesh of resin, prevent that molten metal liquid or plastic liquid from stopping up vacuum pipe.
3, the utility model is simple in structure, cost is low, is convenient to operation, in the suit, the use of small enterprise's evacuated die-casting process, injection moulding apparatus.
Description of drawings
Fig. 1 is the sketch map of the utility model side-looking cross-section structure.
Among the figure: 1, preceding cover half seal box, 2, preceding cover half, 3, back dynamic model seal box, 4, the back dynamic model; 5, guide pillar, 6, first sealing ring, 7, the cooling water circulating slot, 8, vacuum-pumping tube; 9, the husky micropore plug of resin, 10, the foundry goods thimble, 11, eject rod, 12, second sealing ring.
The specific embodiment
In conjunction with accompanying drawing and embodiment, describe the structure of the utility model in detail.
Embodiment:
As shown in Figure 1, mould seal box ultrahigh vacuum die casting injection moulding apparatus comprises preceding cover half seal box 1, preceding cover half 2, back dynamic model seal box 3, back dynamic model 4, guide pillar 5, vacuum-pumping tube 8 and the husky micropore plug 9 of resin.Back dynamic model seal box 3 is arranged on the outside of back dynamic model 4, back dynamic model 4 and the back dynamic model seal box 3 middle foundry goods thimbles 10 that are provided with, and the base of back dynamic model seal box 3 is provided with and ejects rod 11, and the periphery that ejects rod 11 is provided with two second sealing rings 12.The side of dynamic model seal box 3 is provided with a vacuum-pumping tube in the back, and vacuum-pumping tube is communicated with evacuator.On the contact-making surface of preceding cover half seal box 1 and back dynamic model seal box 3, first sealing ring 6 is set.Become seal box after current cover half seal box 1 and back dynamic model seal box 3 closures, seal box and preceding cover half 2 and back dynamic model 4 middle formation vaccum intervals when vacuumizing.Preceding cover half seal box 1 is provided with four guide pillars 5 with the periphery of back dynamic model seal box 3.Preceding cover half seal box 1 can slide front and back on guide pillar 5 with back dynamic model seal box 3.In preceding cover half 2 and back dynamic model 4, cooling water circulating slot 7 is set respectively.Both sides, middle part at preceding cover half and edge, the closed place of back dynamic model respectively are provided with a vacuum orifice, and each vacuum orifice is communicated with die cavity and seal box vaccum interval, and the husky micropore plug of a resin is set in each vacuum orifice.Select 120 purpose fine sands and the phenolic resins of 6 weight portions of the high-quality of 94 weight portions for use, heating phenolic resins to molten condition and with after fine sand evenly mixes is pressed into resin sand micro-mesh.
Claims (1)
1. mould seal box ultrahigh vacuum die casting injection moulding apparatus; Cover half seal box (1), preceding cover half (2), back dynamic model seal box (3), back dynamic model (4), guide pillar (5), vacuum-pumping tube (8) and the husky micropore plug (9) of resin before comprising; It is characterized in that: preceding cover half seal box (1) is arranged on the outside of preceding cover half (2); Back dynamic model seal box (3) is arranged on the outside of back dynamic model (4); Back dynamic model (4) and the middle foundry goods thimble (10) that is provided with of back dynamic model seal box (3); The base of back dynamic model seal box (3) is provided with and ejects rod (11); The periphery that ejects rod (11) is provided with second sealing ring (12), at the side of preceding cover half seal box (1) or back dynamic model seal box (3) one or more vacuum-pumping tube (8) is set, and on the contact-making surface of preceding cover half seal box (1) and back dynamic model seal box (3), first sealing ring (6) is set; Become seal box after current cover half seal box (1) and back dynamic model seal box (3) closure; Form vaccum interval in the middle of seal box and preceding cover half (2) and the back dynamic model (4) when vacuumizing, the periphery of preceding cover half seal box (1) and back dynamic model seal box (3) is provided with two or more guide pillar (5), and preceding cover half seal box (1) and back dynamic model seal box (3) can slide before and after guide pillar (5) is gone up; In preceding cover half (2) and back dynamic model (4), cooling water circulating slot (7) is set respectively; At the edge of preceding cover half (2) or back dynamic model (4) or at preceding cover half (2) and the closed place of back dynamic model (4) one or more vacuum orifice is set, each vacuum orifice is communicated with die cavity and seal box vaccum interval, and the husky micropore plug (9) of resin is set in each vacuum orifice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205606556U CN202539521U (en) | 2011-12-01 | 2011-12-01 | Die seal box ultrahigh vacuum die casting injection moulding apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205606556U CN202539521U (en) | 2011-12-01 | 2011-12-01 | Die seal box ultrahigh vacuum die casting injection moulding apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202539521U true CN202539521U (en) | 2012-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205606556U Expired - Fee Related CN202539521U (en) | 2011-12-01 | 2011-12-01 | Die seal box ultrahigh vacuum die casting injection moulding apparatus |
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|---|---|
| CN (1) | CN202539521U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985156A (en) * | 2015-06-15 | 2015-10-21 | 广州城建职业学院 | Full sealing thermal type vacuum die-casting die assembly |
-
2011
- 2011-12-01 CN CN2011205606556U patent/CN202539521U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985156A (en) * | 2015-06-15 | 2015-10-21 | 广州城建职业学院 | Full sealing thermal type vacuum die-casting die assembly |
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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: 20121121 Termination date: 20141201 |
|
| EXPY | Termination of patent right or utility model |