CN1611338A - Nano vacuum mould device and shaping method using same - Google Patents
Nano vacuum mould device and shaping method using same Download PDFInfo
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- CN1611338A CN1611338A CN 200310111908 CN200310111908A CN1611338A CN 1611338 A CN1611338 A CN 1611338A CN 200310111908 CN200310111908 CN 200310111908 CN 200310111908 A CN200310111908 A CN 200310111908A CN 1611338 A CN1611338 A CN 1611338A
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Abstract
The present invention relates to a nano vacuum die equipment comprising upper die portion, lower die portion, vacuum exhausting pressurization device and vacuum air-discharging constant pressure device, in which the vacuum air-discharging constant pressure device comprises constant pressure control device, aeration bolt and material-resisting device; the vacuum exhausting pressurization device includes non-return valve device, air-resisting device, aeration bolt and material-resisting device; the material-resisting device includes material-resisting nano piece and material-shielding aeration cloth, and the air-resisting device includes resistance gravity ball and air-resisting piece. The application of said invention can effectively save material, can prevent surface of product from producing defects of material deficiency, flowed mark and bubble, etc. and can ensure stability of product forming quality. Said invention also provides the forming method by using said die equipment.
Description
Technical field
The present invention relates to a kind of die device and use the forming method of this die device, particularly a kind of nano vacuum die device and use the forming method of this die device.
Background technology
As everyone knows, when using present conventional die device moulding, the product each several part density basically identical that foaming forms.But for common product, only need outer density, thickness to reach certain standard and get final product usually, like this, the product that conventional die device is produced is the same with outer density big owing to internal density, thereby has wasted a large amount of raw materials.In addition, use conventional mould, in the atmospheric pressure state forming process, the unnecessary gas in the die cavity is the easiest to be accumulated in the inner surface of die cavity and makes product produce defectives such as lacking material, current mark, bubble.
In addition, conventional mould cavity pressure when the atmospheric pressure state compacted under is bigger, thereby the consumption that so just needs to increase the prescription blowing agent has increased cost.Simultaneously because the pressure that in moulding course of reaction, foamable reaction, disengages of raw material, or heating raw expand the pressure that increased will be to the affecting greatly of setting pressure in the die cavity, and cause error, be unfavorable for guaranteeing the stable of moulding quality.
Summary of the invention
Based on the deficiencies in the prior art, the object of the present invention is to provide a kind of nano vacuum die device and use the forming method of this die device, can conservation and do not have defective, any surface finish, best in quality stable by the product of its moulding.
A kind of nano vacuum die device of the present invention, comprise part of the upper die and part of the lower die, form die cavity behind the upper and lower mould matched moulds, described nano vacuum die device also comprises vacuum suction pressue device and vacuum exhaust constant-voltage equipment, the vacuum suction pressue device can be bled to described die cavity or inflates pressurization, the cavity pressure when the vacuum exhaust constant-voltage equipment is used to control moulding according to the moulding needs.Wherein, described vacuum exhaust constant-voltage equipment comprises constant voltage control device, ventilative bolt and resistance material device; Described vacuum suction pressue device comprises check valve apparatus, choke device, ventilative bolt and resistance material device; Described resistance material device comprises the resistance material nanometer sheet and hides the ventilative cloth of material that described choke device comprises resistance gravity ball and choke pad.
A kind of nano vacuum die molding method of the present invention comprises the steps: that (1) is placed in the nano vacuum die device on the former and is set to the state that is fit to moulding; (2) die cavity is carried out general forming operation and handle or spray interfacial agents; (3) pour into or add the former described die cavity of expecting; (4) merge at formula material, build bridge before the reaction, the bleeding point by the nano vacuum die device is evacuated to die cavity setting pressure and seals bleeding point simultaneously; (5) by pressure, condition, the flow process shaping finished product set.
Wherein, described method is in shaping finished product, and the nano vacuum mould can carry out constant voltage control to the die cavity internal pressure.Before die cavity being carried out general forming operation processing or spraying interfacial agents, also comprise the step of the nano vacuum die device being carried out vacuum component installation and preparation, described vacuum component is installed and preparation comprises: (A) open the check valve of vacuum suction pressue device, close the check valve of vacuum exhaust constant-voltage equipment; (B) open mould; (C) ventilative bolt, resistance material nanometer sheet and the ventilative cloth of screening material with vacuum suction pressue device and vacuum exhaust constant-voltage equipment is placed in nano vacuum mould relevant position respectively.In addition, before (4) step, described method also comprises the pressurize step of sealed upper and lower mould of cover mold.Described sealing bleeding point is to realize by unidirectional the cutting down of closing the vacuum suction pressue device.Before (5) step, need open the check valve of vacuum exhaust constant-voltage equipment, after (5) step, described method also comprises: remove locked mode pressure, close the check valve of vacuum exhaust constant-voltage equipment, open the check valve of vacuum suction pressue device simultaneously; Then pressure-air is injected die cavity; Open upper and lower mould, and the product after the moulding is taken out in die cavity.
After adopting the present invention; at first; because of the vacuum buffer brake in the die cavity; the inner surface that formula material can at first be close to die cavity flows and is successively piled up by die cavity inner surface to center position; thereby can make the finished product epidermis form the high density protective layer, therefore in the prescription design, can improve coefficient of foaming, reduction global density, reduce finished product average weight, conservation, reach the effect that reduces cost.Also can increase simultaneously the function and the rerum natura of finished product keypoint part, produce high-quality and light-weighted finished product; In addition, the unnecessary gas in the die cavity also can not be trapped in the inner surface of die cavity, thereby unlikelyly produces defectives such as lacking material, current mark, bubble at product surface, and finished product outward appearance and mould decorative pattern fit like a glove.Once more,, in foaming process, reduced the pressure of mould die cavity, can reduce the consumption of prescription blowing agent like this and reduce cost because of the vacuum principle because raw material is close to the inner surface of die cavity.At last, because the setting of constant pressure valve, can constant voltage regulate the setting pressure of stablizing in the die cavity, thereby can eliminate because the pressure that disengages in moulding course of reaction, foamable reaction of raw material or heating raw the expand pressure that increased to die cavity in the influence of setting pressure and the error that causes, thereby guarantee the stable of moulding quality really.
Description of drawings
Fig. 1 is the cutaway view of nano vacuum die device vacuum suction pressue device of the present invention;
Fig. 2 is the cutaway view of nano vacuum die device vacuum exhaust constant-voltage equipment of the present invention;
Fig. 3 is the main flow chart of nano vacuum die device forming method of the present invention.
The specific embodiment
Further set forth the present invention below in conjunction with accompanying drawing.
See also Fig. 1 and Fig. 2, nano vacuum die device of the present invention comprises patrix 10, core rod 20, counterdie 30, vacuum suction pressue device and vacuum exhaust constant-voltage equipment.
Wherein, the central authorities of patrix 10 are formed with the through hole 12 and 12 ' of up/down perforation.Core rod 20 corresponding through holes 12 are offered first perforate 22 and second perforate 26 from top to bottom successively, and corresponding through hole 12 ' is then offered first perforate 22 ' and second perforate 26 ' from top to bottom successively.Corresponding described second perforate 26 and 26 ' in core rod 20 bottoms is convexly equipped with flange 21 and 21 ' respectively downwards.Counterdie 30 inside are formed with a die cavity 31.During matched moulds, patrix 10 and counterdie 30 are held on core rod 20 between the two, and the part of film core 20 embeds die cavity 31 central authorities of counterdie 30.
With reference to figure 1, described vacuum suction pressue device is made up of unidirectional valve seat 50, check valve 54, choke gravity spheroid 70, choke pad 60, ventilative bolt 23, resistance material nanometer sheet 24 and the ventilative cloth 25 of screening material.Wherein, unidirectional valve seat 50 screw locks are in through hole 12 tops of patrix 10, and its top has a blow vent 52, and the side is equipped with check valve 54.Be formed with bellmouths 62 (indicating) in the middle of the choke pad 60, the position of its corresponding core rod 20 first perforates 22 is placed on the bottom of through hole 12 and fits tightly with the top of core rod 20.
Choke gravity spheroid 70 is placed in bellmouth 62 tops of the described choke pad 60 in the through hole 12; Ventilative 23 on bolt is received in second perforate 26 of core rod 20.Resistance material nanometer sheet 24 and the ventilative cloth 25 of screening material are contained in flange 21 inside of core rod 20, and wherein, resistance material nanometer sheet 24 fits tightly in the bottom surface of ventilative bolt 23, hide to expect that ventilative cloth 25 then fits in the bottom surface of resistance material nanometer sheet 24.
With reference to figure 2, vacuum exhaust constant voltage part is made up of valve seat 50 ', constant pressure valve 80, check valve 54 ', ventilative bolt 23 ', resistance material nanometer sheet 24 ' and the ventilative cloth 25 ' of screening material.Wherein, valve seat 50 ' screw lock is in the through hole 12 ' top of patrix 10, and its top has a blow vent 52 ', and the side is equipped with check valve 54 ', and constant pressure valve 80 is installed on the top of unidirectional valve seat 50 ' corresponding to blow vent 52 '.Ventilative bolt 23 ' is received in second perforate 26 ' of core rod 20; Flange 21 ' inside and resistance material nanometer sheet 24 ' that resistance material nanometer sheet 24 ' and the ventilative cloth 25 ' of screening material then are contained in core rod 20 fit tightly in the bottom surface of ventilative bolt 23 ', hide to expect that ventilative cloth 25 ' then fits in the bottom surface of resistance material nanometer sheet 24 '.
In the present invention, except ventilative bolt and put the core rod that hides the ventilative cloth of material, resistance material nanometer sheet, other device all can be fixedly mounted on the forming machine equipment in the accessory of vacuum mold, and the automatic setting of making electronic type is controlled.Patrix 10 and core rod 20 are assembled together and constitute the part of the upper die, and wherein core rod 20 can omit according to making needs.
In the present invention, the function of above-mentioned each main device is as follows:
Hide the ventilative cloth of material: this ventilative cloth can be isolated the solid matter that includes in the die cavity 31 when cleaning or spraying interfacial agents, directly be attached to nanometer sheet and ventilative bolt and influence the circulation of vacuum, gas-pressurized, and can combine with the raw material of perfusion or interpolation one when the moulding and do not influence the function and the outward appearance of finished product.In addition, repeat to put ventilative cloth and more can guarantee the smooth and easy of vacuumizing.
The resistance material nanometer sheet: the resistance material nano-cloth is made by nano material, is the structural material of a kind of permeable watertight.Any molecular structure of inorganic chemistry raw material that is used in perfusion or adds moulding is all greater than hydrone, so the resistance material nano-cloth is further guaranteed directly the breathe freely function of bolt of unlikely influence with interfacial agents, contacting of inorganic chemistry raw material of ventilative bolt.
Ventilative bolt: under high temperature, high pressure, can intercept the molten raw material of the glue that contains the solid composition and infiltrate or loss.
Choke gravity spheroid: the sphere body that adopts high desnity metal to make.When die cavity carries out the vacuum low-pressure EO, can seal the bellmouth 62 of choke pad 60 to guarantee the vacuum pressure in the die cavity in the very first time by the attraction of centrifugal force and die cavity vacuum low-pressure.
The choke pad: this choke pad is a soft gasket, can cooperate choke gravity spheroid to intercept the passage of die cavity 31 air inlets fully.
Check valve: the operator scheme that is used for setting control die cavity vacuum or pressurized state.
Constant pressure valve: be used for the required suitable pressure of molding process die cavity 31, and can regulate and get rid of the excessive pressure that is produced because of in forming operation, the reaction automatically.
With reference to figure 3, a kind of nano vacuum die molding method of the present invention comprises the steps: that (1) is placed in the nano vacuum die device on the former and is set to the state that is fit to moulding; (2) die cavity is carried out general forming operation and handle or spray interfacial agents; (3) pour into or add the former described die cavity of expecting; (4) merge at formula material, build bridge before the reaction, the bleeding point by the nano vacuum die device is evacuated to die cavity setting pressure and seals bleeding point simultaneously; (5) by pressure, condition, the flow process shaping finished product set.
Wherein, described method is in shaping finished product, and the nano vacuum mould can carry out constant voltage control to the die cavity internal pressure.Before die cavity being carried out general forming operation processing or spraying interfacial agents, also comprise the step of the nano vacuum die device being carried out vacuum component installation and preparation, described vacuum component is installed and preparation comprises: (A) open the check valve of vacuum suction pressue device, close the check valve of vacuum exhaust constant-voltage equipment; (B) open mould; (C) ventilative bolt, resistance material nanometer sheet and the ventilative cloth of screening material with vacuum suction pressue device and vacuum exhaust constant-voltage equipment is placed in nano vacuum mould relevant position respectively.In addition, before (4) step, described method also comprises the pressurize step of sealed upper and lower mould of cover mold.Described sealing bleeding point is to realize by unidirectional the cutting down of closing the vacuum suction pressue device.Before (5) step, need open the check valve of vacuum exhaust constant-voltage equipment, after (5) step, described method also comprises: remove locked mode pressure, close the check valve of vacuum exhaust constant-voltage equipment, open the check valve of vacuum suction pressue device simultaneously; Then pressure-air is injected die cavity; Open upper and lower mould, and the product after the moulding is taken out in die cavity.
As one embodiment of the present of invention, the forming method of described nano vacuum die device is as follows:
The first step, be placed in the nano vacuum die device on the former and be set to the state that is fit to moulding; Second goes on foot, opens the check valve 54 of vacuum suction pressue device, closes the check valve 54 ' of vacuum exhaust constant-voltage equipment; The 3rd goes on foot, opens mould; The 4th step, the ventilative bolt 23 with the vacuum suction pressue device, resistance material nanometer sheet 24 and the ventilative cloth 25 of screening material are placed in second perforate 26 and flange 21 inside of core rod 20 respectively, and ventilative bolt 23 ', resistance material nanometer sheet 24 ' and the screening of vacuum exhaust constant voltage part are expected that ventilative cloth 25 ' is placed in second perforate 26 ' and the flange 21 ' inside of core rod 20 respectively; The 5th goes on foot, die cavity 31 is carried out general forming operation processing or sprays interfacial agents (indicating among the figure); The 6th step, pour into or add and formerly expect in the die cavity 31; The 7th step, the cover mold sealed upper and lower mould that pressurizes; Before the 8th step, the reaction of merging at formula material, build bridge, fast die cavity 31 is evacuated to setting pressure and closes simultaneously and unidirectionally cut down 54 by the bleed bleeding point 52 of pressue device of vacuum resistance material; The 9th step, open the check valve of vacuum pumping hardware, by pressure, condition, the flow process shaping finished product set; The tenth step, remove locked mode pressure, close the check valve 54 ' of vacuum exhaust constant-voltage equipment, open the check valve 54 of vacuum suction pressue device simultaneously; The 11 the step, pressure-air is injected die cavity 31; The 12 step, open upper and lower mould, and the product after the moulding is taken out in die cavity 31.
Wherein, in the 8th step vacuum, perfusion or the raw material that adds are when molten condition, and because of the vacuum buffer brake in the die cavity, the inner surface that can at first be close to die cavity 31 flows and successively piled up by die cavity 31 inner surfaces to center position.Like this; when formula material is expanded material; being close to the inner surface of die cavity 31 under the vacuum decompression state after the raw materials melt piles up; again by die cavity 31 inner surfaces to the center position foaming; higher, the thickness thickening of the outer density of the product that forms therefrom, and internal layer density reduces relatively significantly, can make the finished product epidermis form the high density protective layer; therefore in the prescription design, can improve coefficient of foaming, reduce global density, reduce finished weight, reach the effect that reduces cost.Also can increase simultaneously the function and the rerum natura of finished product keypoint part, produce high-quality and light-weighted finished product.And when using general die device moulding, the product each several part density basically identical that foaming forms.And, only need outer density, thickness to reach certain standard and get final product for common product, like this, the product of being produced by nano vacuum die device of the present invention can be saved the raw material of quite a lot of internal layer under the same situation of outer density.In addition, the inner surface accumulation of being close to die cavity 31 owing to raw material in the vacuum does not have stopping of air, unnecessary gas in the die cavity 31 just can not be trapped in the inner surface of die cavity 31 like this, thereby unlikelyly produce to lack defectives such as material, current mark, bubble at product surface, and finished product outward appearance and mould decorative pattern fit like a glove.And use in the general die molding process, the unnecessary gas in the die cavity 31 is then the easiest to be accumulated in the inner surface of die cavity 31 and produces defectives such as scarce material, current mark, bubble.
Once more,, in foaming process, reduced the pressure of mould die cavity 31, can reduce the consumption of prescription blowing agent like this and reduce cost because of the vacuum principle because raw material is close to the inner surface of die cavity 31.
At last, because the setting of constant pressure valve 80, can constant voltage regulate the setting pressure of stablizing in the die cavity 31, thereby can eliminate because the pressure that disengages in moulding course of reaction, foamable reaction of raw material or heating raw the expand pressure that increased to die cavity 31 in the influence of setting pressure and the error that causes, thereby guarantee stablizing of moulding quality really.
Above disclosed only is the preferred embodiment of nano vacuum die device of the present invention and forming method thereof, certainly can not limit the present invention's interest field with this, therefore the equivalent variations of being done according to the present patent application claim still belongs to the scope that the present invention is contained.
Claims (10)
1. nano vacuum die device, comprise part of the upper die and part of the lower die, form die cavity behind the upper and lower mould matched moulds, it is characterized in that: described nano vacuum die device also comprises the vacuum suction pressue device, and this vacuum suction pressue device can be bled to described die cavity or inflates pressurization according to the moulding needs.
2. nano vacuum die device according to claim 1 is characterized in that: described nano vacuum die device also comprises the vacuum exhaust constant-voltage equipment, the cavity pressure when this vacuum exhaust constant-voltage equipment is used to control moulding.
3. nano vacuum die device according to claim 2 is characterized in that: described vacuum exhaust constant-voltage equipment comprises constant voltage control device, ventilative bolt and resistance material device; Described vacuum suction pressue device comprises check valve apparatus, choke device, ventilative bolt and resistance material device; Described resistance material device comprises the resistance material nanometer sheet and hides the ventilative cloth of material that described choke device comprises resistance gravity ball and choke pad.
4. a nano vacuum die molding method is characterized in that comprising the steps:
(1) is placed in the nano vacuum die device on the former and is set to the state that is fit to moulding;
(2) die cavity is carried out general forming operation and handle or spray interfacial agents;
(3) pour into or add the former described die cavity of expecting;
(4) merge at formula material, build bridge before the reaction, the bleeding point by the nano vacuum die device is evacuated to die cavity setting pressure and seals bleeding point simultaneously;
(5) by pressure, condition, the flow process shaping finished product set.
5. nano vacuum die molding method according to claim 4 is characterized in that: described method is in shaping finished product, and the nano vacuum mould can carry out constant voltage control to the die cavity internal pressure.
6. nano vacuum die molding method according to claim 5, it is characterized in that: described method also comprises the step of the nano vacuum die device being carried out vacuum component installation and preparation before die cavity being carried out general forming operation processing or spraying interfacial agents.
7. nano vacuum die molding method according to claim 6 is characterized in that: described vacuum component is installed and preparation comprises:
(A) open the check valve of vacuum suction pressue device, close the check valve of vacuum exhaust constant-voltage equipment;
(B) open mould;
(C) ventilative bolt, resistance material nanometer sheet and the ventilative cloth of screening material with vacuum suction pressue device and vacuum exhaust constant-voltage equipment is placed in nano vacuum mould relevant position respectively.
8. according to claim 4 or 7 described nano vacuum die molding methods, it is characterized in that: before (4) step, described method also comprises the pressurize step of sealed upper and lower mould of cover mold.
9. nano vacuum die molding method according to claim 8 is characterized in that: described sealing bleeding point is to realize by unidirectional the cutting down of closing the vacuum suction pressue device.
10. nano vacuum die molding method according to claim 9, it is characterized in that: before (5) step, need open the check valve of vacuum exhaust constant-voltage equipment, after (5) step, described method also comprises: remove locked mode pressure, close the check valve of vacuum exhaust constant-voltage equipment, open the check valve of vacuum suction pressue device simultaneously; Then pressure-air is injected die cavity; Open upper and lower mould, and the product after the moulding is taken out in die cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200310111908A CN100577390C (en) | 2003-10-27 | 2003-10-27 | Nano vacuum die device and use the forming method of this nano vacuum die device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200310111908A CN100577390C (en) | 2003-10-27 | 2003-10-27 | Nano vacuum die device and use the forming method of this nano vacuum die device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1611338A true CN1611338A (en) | 2005-05-04 |
| CN100577390C CN100577390C (en) | 2010-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200310111908A Expired - Fee Related CN100577390C (en) | 2003-10-27 | 2003-10-27 | Nano vacuum die device and use the forming method of this nano vacuum die device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102234100A (en) * | 2010-04-28 | 2011-11-09 | 鸿富锦精密工业（深圳）有限公司 | Pressing die |
| CN102765126A (en) * | 2012-06-27 | 2012-11-07 | 中国人民解放军国防科学技术大学 | Curing and forming die for preparing foamed ceramic according to protein foaming method and preparation method of curing and forming die |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3256708B2 (en) * | 1993-03-26 | 2002-02-12 | 川崎マイクロエレクトロニクス株式会社 | Method for manufacturing semiconductor device |
| CN1050090C (en) * | 1996-12-17 | 2000-03-08 | 王水木 | Method for producing air-tight bag |
| JP2001018230A (en) * | 1999-07-12 | 2001-01-23 | Fjc:Kk | Molding die, equipment and molding method |
| JP2003285339A (en) * | 2002-03-28 | 2003-10-07 | Toyo Tire & Rubber Co Ltd | Manufacturing method for formed molded product |
-
2003
- 2003-10-27 CN CN200310111908A patent/CN100577390C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102234100A (en) * | 2010-04-28 | 2011-11-09 | 鸿富锦精密工业（深圳）有限公司 | Pressing die |
| CN102765126A (en) * | 2012-06-27 | 2012-11-07 | 中国人民解放军国防科学技术大学 | Curing and forming die for preparing foamed ceramic according to protein foaming method and preparation method of curing and forming die |
| CN102765126B (en) * | 2012-06-27 | 2014-12-03 | 中国人民解放军国防科学技术大学 | Method for preparing foamed ceramic by protein foaming |
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| Publication number | Publication date |
|---|---|
| CN100577390C (en) | 2010-01-06 |
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Granted publication date: 20100106 Termination date: 20101027 |