CN1065471C - Heat accumulating type mould compression molding drying process and mould thereof - Google Patents
Heat accumulating type mould compression molding drying process and mould thereof Download PDFInfo
- Publication number
- CN1065471C CN1065471C CN96101091A CN96101091A CN1065471C CN 1065471 C CN1065471 C CN 1065471C CN 96101091 A CN96101091 A CN 96101091A CN 96101091 A CN96101091 A CN 96101091A CN 1065471 C CN1065471 C CN 1065471C
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- mould
- die
- former
- formpiston
- matched moulds
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- 238000001035 drying Methods 0.000 title claims abstract description 16
- 238000000748 compression moulding Methods 0.000 title claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 38
- 238000010438 heat treatment Methods 0.000 claims abstract 2
- 238000000465 moulding Methods 0.000 claims description 35
- 238000005516 engineering process Methods 0.000 claims description 9
- 238000007493 shaping process Methods 0.000 claims description 9
- 238000005187 foaming Methods 0.000 claims description 4
- 230000001172 regenerating effect Effects 0.000 claims description 4
- 238000009834 vaporization Methods 0.000 claims description 4
- 230000008016 vaporization Effects 0.000 claims description 4
- 239000004604 Blowing Agent Substances 0.000 claims 1
- 238000009825 accumulation Methods 0.000 claims 1
- 238000011049 filling Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 239000004088 foaming agent Substances 0.000 description 5
- 238000011068 loading method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- 241000675108 Citrus tangerina Species 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000008446 instant noodles Nutrition 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- Formation And Processing Of Food Products (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Abstract
A heat accumulating type mould compression moulding drying process and a mould thereof. Heating the mould, putting the forming material into the female mould according to the filling amount of the mould, applying and maintaining pressure after mould closing, at the moment, quickly transferring the accumulated heat to the forming material by the mould to finish the forming and drying process of the forming material, and opening the mould to take out a finished product after gas in the mould is discharged and stopped. The mold is composed of a male mold 2, a female mold 1, a female mold hoop 5 and a cavity 9 formed by combining the male mold and the female mold. The female die 1 and the male die 2 are provided with air overflow gaps 4. The mould is provided with mould ejection blocks 6 and 7. And a guide chute 3 with a V-shaped section is arranged on the cavity surface of the side wall of the female die. And a flash gas collecting groove 8 is arranged on the die assembly parting surface of the die and is connected with a flash gap and a flash channel. Has the characteristics of energy saving, time saving, convenient forming, easy mold stripping, high yield and the like.
Description
The invention belongs to the technology field, being particularly related to the moulding process and the mould thereof of Biodegradable pollution-free sparkle class material (see Chinese patent application number 92104631.6,94105304.0 etc.) manufactured goods, is the improvement invention of Chinese invention patent application 94104054.2 " hot-die and moulding foaming shaping process thereof ".
Chinese invention patent application 94104054.2 " hot-die and moulding foaming shaping process thereof ", its mould is the breeder tube that has some on former, its technology is to the needed temperature of shaping and drying with mold heated, requirement by loading, moulding material is dropped in the heated former, the formpiston that closes rapidly, treat that the gas discharging stops substantially in the mould after, moulded products is taken out in die sinking.Because after moulding material is heated, wherein the decomposition gas of evaporation of water and thermal decomposition foaming agent will produce a large amount of high temperature and high pressure gas, these gases will produce bigger pressure in mould, be difficult to keep the matched moulds state; The breeder tube exhaust is not smooth in addition, is difficult to moisture content is taken out of, and working (machining) efficiency is lower; And product surface is coarse.Moreover, above-mentioned patent application is because on the mould structure, also exists drawbacks such as depanning inconvenience and loading be strict.
The present invention is exactly at above-mentioned situation, based on above-mentioned patent of invention, starts with and a kind of compression moulding and drying technology for regenerative mould and the mould thereof developed from technology and mould structure.
Process of the present invention is earlier mould (comprising formpiston and former) to be heated to uniform temperature (this temperature and die quality are inversely proportional to, be directly proportional with the institute evaporated water, in the practical application generally between 120 ℃～180 ℃), requirement by the mould cavity loading, fill a certain amount of moulding material in the die cavity before matched moulds, rapidly matched moulds after-applied and keep certain pressure (this pressure should greater than die cavity with the perpendicular plane of matched moulds axis on projected area multiply by 0.3～0.5MPa/cm
2).At this moment, mould just will heat the moulding material that the heat of being put aside passes to filling rapidly in advance.Moulding material institute water content is heated, and the back is rapid vaporizes, and produces a large amount of high-temperature high-pressure steams; If contain the thermal decomposition foaming agent in the moulding material, foaming agent also can be heated to cause and decompose, produces a large amount of gases; The high temperature and high pressure gas that these produce rapidly, producing pressure in the controlled mold cavity of exhaust is 0.3～0.5MPa/cm
2Air pressure (it is exactly in order to resist this pressure that mould closes up pressure after-applied and that keep), the moulding material of filling in the mould under the vaporization of moisture and foaming agent, evenly full rapidly entire die die cavity; Subsequently, the gas in the die cavity will progressively be discharged by the excessive air cleft crack that is provided with on the mould, and take away large quantity of moisture, cavity pressure is progressively reduced to normal pressure, the moulding material shaping and drying treats that the gas discharging stops substantially, can die sinking take out the mold pressing manufactured goods of a bone dry moulding from mould.
According to above-mentioned technological requirement, the present invention has also designed supporting with it mould.This mould is by formpiston 2 (see figure 1)s, and formed mould cavity 9 constitutes between former 1 and former hoop 5 and formpiston and the former.Mould is selected the high and high metal material manufacturing of specific heat of thermal conductivity factor for use.The quality m of mould is:
Wherein: the moisture content weight that need evaporate during the moulding of D-moulding material (be about institute's water content 90%);
t
1-moulding material drops into the temperature before the mould;
t
2The vapourizing temperature of-water;
T
1Mold temperature during the depanning of-manufactured goods;
T
2Mold temperature during-molding material fills;
i
1The specific heat of-mold materials;
i
2-specific heat of water;
i
3The heat of vaporization of-water;
K-adjusts coefficient, with the thermal conductivity factor of the environment for use of mould, mold materials, the air cleft crack of overflowing
The factors such as complexity of arrangement, die cavity are relevant, and its span is 0.5～5.
Be provided with some excessive air cleft cracks 4 on former 1 and formpiston 2, its width is between 0.15mm～0.3mm.Under the prerequisite that does not influence mould structure intensity, the air cleft crack of overflowing should evenly distribute as much as possible.Excessive air cleft crack can be done respectively axially or radially arranged according to the characteristics of mould cavity face.Overflow that air cleft crack 4 adds structure such as mold matched moulds die joint, depanning jacking block 6,7 and the slit that forms, its total length and moulding material shaping and drying the pass between the moisture content weight that should discharge be 6～20cm/g.The moulding material water content is low, the moulded products thin thickness, and value is less than normal, on the contrary value is higher.In addition, this value also will be subjected to the restriction of mould structure.Excessive air cleft crack can utilize the mould structure method for designing to form, and promptly mould system is spliced by several modules, has just constituted excessive air cleft crack by the formed die joint of each module; Can also utilize the process of Wire EDM to process.
The spliced mould of module according to the requirement of structure, can adopt the tangerine flap module of vertically cutting apart along matched moulds axis work, or adopt the ring-type module of making horizontal partition along the matched moulds axis.The single face of die module 16 or 17 (seeing figure four and figure five respectively) or two-sidedly can arrange air collecting chamber 10, the degree of depth of air collecting chamber is less than 1mm.Be drilled with gas collection hole 11 on air collecting chamber, air collecting chamber is communicated with, its effect is the air pressure in the balance die cavity, prevents because of local excess pressure material spray or not exclusively full.
For the ease of depanning, formpiston and former are provided with depanning jacking block 6 and 7.
On the die cavity face of former 1, be provided with some dark 1.5mm, wide 1.5mm cross section is the deflector chute 3 of V-type.According to the characteristics of die cavity face, deflector chute can be done respectively axially or radially arranged, and this deflector chute will guide moulding material evenly to distribute when moulding material fills whole die cavity.
On the matched moulds die joint of formpiston and former, arranging that width is arranged is that 4～6mm, area of section are 12～30mm
2Flash pneumatic trough 8.Its effect mainly is to compile nuance because of certain technological factor (too high as mold temperature, the moulding material of inserting is too much, or the like) and moulding material occurs in its shaping and drying process in the die cavity that causes flash.Can to arrange some cross sections on the film die joint be 0.5～1mm to mould cavity 9 closing
2Radially flash passage link to each other with flash pneumatic trough 8.Excessive air cleft crack generally also communicates with flash pneumatic trough 8.
Compression moulding and drying technology for regenerative mould and mould thereof that the present invention proposes, processes such as the moulding of moulding material, drying are accomplished without any letup, energy-and time-economizing not only, and have characteristics such as convenient formation, depanning are easy, yield rate height, both can be used for the production of Biodegradable pollution-free sparkle water material manufactured goods, also can be widely used in the production of moisture moulding material manufactured goods.Production as ceramic, moulded paper pulp product, handicraft etc.Can be widely used in industries such as packing, construction material, food.
Mould embodiment one of the present invention relates to a kind of goblet mould, and figure one is the structure side view of this goblet mould.Formpiston 2, former 1 and former hoop 5 are formed by the bulk metal cutting respectively; Form mould cavity 9 behind formpiston 2 and former 1 matched moulds; Former 1 upper edge matched moulds axis direction is carved with some V-type deflector chutes 3, cuts out the excessive air cleft crack 4 of the about 0.2mm of width with electric spark cutting way along bottom land; Have flash pneumatic trough 8 on the matched moulds die joint of formpiston 2 and former 1; Being carved with some cross sections between die cavity 9 and the flash pneumatic trough 8 is 0.5～1mm
2The flash passage.Be respectively equipped with depanning jacking block 6 and 7 on formpiston and the former.Figure two partly cuts open top view for former 1 among the figure one and formpiston 2, illustrates the structural relation between deflector chute 3 and excessive air cleft crack 4 and the flash pneumatic trough 8.
Mould embodiment two of the present invention relates to the instant noodle bowl mould of another kind of structure, and figure three is its structure side view.Several are stitched together and constitute formpiston integral body this mould with formpiston module 16 by formpiston hoop 12; Several are stitched together and constitute former integral body with former module 17 by former hoop 5; Former module die cavity face both sides have the chamfering of 0.75 * 1.5mm respectively, and the chamfered part that is stitched together constitutes deflector chute 3; The splicing slit that formpiston module and former module are stitched together constitutes the air cleft crack 4 of overflowing; Former is provided with depanning jacking block 7; Have flash pneumatic trough 8 on the matched moulds die joint of formpiston and former; Some flash passages are arranged between mould cavity 9 and this groove.Figure four is the schematic perspective view of present embodiment formpiston module 16.Figure five is the schematic perspective view of present embodiment former module 17.
A tool example embodiment of process of the present invention is as follows:
With the Biodegradable pollution-free sparkle water material is moulding material, uses the goblet mould of mould embodiment one of the present invention.Formpiston and former are heated to 150 ℃ ± 5 ℃ respectively; Press the volume of mould cavity 9, with 1g/cm
3About loading, take by weighing a certain amount of moulding material, drop in the former; The formpiston that closes rapidly applies and keeps certain pressure, generally approximately through 1～2 second, and the sharply vaporization of being heated of moulding material contained humidity in the die cavity and foaming agent, and to produce pressure be 0.3～0.5MPa/cm
2Pressure; This pressure makes the rapidly full whole die cavity of the moulding material in the die cavity, and the deflector chute 4 on the cavity space face also helps moulding material evenly to distribute; Along with progressively discharge in the excessive air cleft crack 4 of the gas in the die cavity on mould, pressure reduces gradually, and taken away the moulding material shaping and drying the moisture that should discharge; Treat that gas discharges finish (this process was generally 1～2 minute) substantially, can die sinking from mould, take out the mold pressing manufactured goods of a bone dry moulding.It is loose porous that these goods have sandwich layer, and surfaces externally and internally is smooth foaming sandwich structure closely, and its proportion is about 0.4g/cm
3
Claims (9)
1, compression moulding and drying technology for regenerative mould, moulding material is dropped in the die cavity, that material is heated in mould is molded for matched moulds then, the moulding product are taken out in die sinking, it is characterized in that heating mould makes it accumulation of heat in advance, behind the matched moulds, mould preheats the heat of being put aside with it and passes to moulding material in the die cavity rapidly, sharply vaporization foaming after moisture content in the material and blowing agent are heated, and discharge gradually subsequently, its shaping and drying process in 2 minutes, finished.
2, technology as claimed in claim 1, the temperature of the front mold that it is characterized in that feeding intake is the 120-180 degree.
3, as claim 1,2 described technologies, should apply on axially and keep certain pressure at matched moulds when it is characterized in that closing formpiston, and this pressure should greater than mould cavity with the perpendicular plane of matched moulds axis on projected area multiply by 0.3～0.5MPA/CM
2
4, heat accumulating type compression molding drying die, by former (1), formpiston (2), and formed mould cavity (9) constitutes behind formpiston and the former matched moulds, formpiston and sidewall thereof are provided with some excessive air cleft cracks, it is characterized in that also being provided with some excessive air cleft cracks on former (1) and the sidewall thereof, on the mould total length in all excessive air cleft cracks and moulding material shaping and drying the pass between the moisture content that should discharge be 6-20CM/G.
5, mould as claimed in claim 4 is characterized in that: under the prerequisite that does not influence mould structure intensity, the air cleft crack of overflowing as much as possible evenly distributes.
6, mould as claimed in claim 4 is characterized in that: the place, excessive air cleft crack on described former (1) die face is provided with deflector chute (3).
7, as claim 4,5,6 described moulds, it is characterized in that: the matched moulds die joint of formpiston (2) and former (1) is provided with flash pneumatic trough (8), is communicated with the radially flash passage on overflow air cleft crack (4) and the matched moulds die joint.
8, mould as claimed in claim 7 is characterized in that: be respectively arranged with depanning jacking block (6), (7) on formpiston (2) and former (1).
9, mould as claimed in claim 7, the width that it is characterized in that described flash pneumatic trough is 4-6MM, sectional area is 12-30MM
2, described deflector chute (3) cross section is a V-arrangement, and the width of deflector chute is 1.5MM, and the degree of depth is 1.5MM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96101091A CN1065471C (en) | 1996-02-04 | 1996-02-04 | Heat accumulating type mould compression molding drying process and mould thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96101091A CN1065471C (en) | 1996-02-04 | 1996-02-04 | Heat accumulating type mould compression molding drying process and mould thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1156081A CN1156081A (en) | 1997-08-06 |
| CN1065471C true CN1065471C (en) | 2001-05-09 |
Family
ID=5116926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96101091A Expired - Fee Related CN1065471C (en) | 1996-02-04 | 1996-02-04 | Heat accumulating type mould compression molding drying process and mould thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1065471C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658620B (en) * | 2012-05-07 | 2014-03-26 | 青岛海信模具有限公司 | Method for improving surface quality of foam molded plastic part |
| CN103802303A (en) * | 2012-11-06 | 2014-05-21 | 巨大机械工业股份有限公司 | Composite forming mold and forming method thereof |
| CN107139377A (en) * | 2017-06-20 | 2017-09-08 | 南通超达装备股份有限公司 | A kind of mould with secondary flanging die joint |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61121908A (en) * | 1984-11-19 | 1986-06-09 | Tokyo Kaken:Kk | Molding and mold for expanding crosslinking expandable composition |
| EP0434024A2 (en) * | 1989-12-21 | 1991-06-26 | Jsp Corporation | Molding apparatus and its use for a production process of expansion-molded articles |
| CN1105314A (en) * | 1992-09-02 | 1995-07-19 | 伍德布里奇泡沫制品公司 | Vented mould and use thereof |
| JP4082730B2 (en) * | 1996-01-04 | 2008-04-30 | ハイド・アスレティック・インダストリーズ・インコーポレーテッド | Shoes and stabilization system for shoes |
-
1996
- 1996-02-04 CN CN96101091A patent/CN1065471C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61121908A (en) * | 1984-11-19 | 1986-06-09 | Tokyo Kaken:Kk | Molding and mold for expanding crosslinking expandable composition |
| EP0434024A2 (en) * | 1989-12-21 | 1991-06-26 | Jsp Corporation | Molding apparatus and its use for a production process of expansion-molded articles |
| CN1105314A (en) * | 1992-09-02 | 1995-07-19 | 伍德布里奇泡沫制品公司 | Vented mould and use thereof |
| JP4082730B2 (en) * | 1996-01-04 | 2008-04-30 | ハイド・アスレティック・インダストリーズ・インコーポレーテッド | Shoes and stabilization system for shoes |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1156081A (en) | 1997-08-06 |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Chi Hong Lin Bai Document name: Notice of actual examination of patent for invention |
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| C14 | Grant of patent or utility model | ||
| FG4A | Grant of patent | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WUHAN FUTUO PACKAGING TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: CHI HONG Free format text: FORMER OWNER: LIN BAI Effective date: 20041022 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20041022 Address after: 430223, Wuhan, Hubei province East Lake New Technology Development Zone, Torch Road, south side of the torch Patentee after: Wuhan rich Packing Technology Co., Ltd. Address before: 430223, Wuhan, Hubei province East Lake New Technology Development Zone on the south side of the torch torch Road, Wuhan Tuo Tuo Packaging Technology Co., Ltd. Co-patentee before: Lin Bai Patentee before: Chi Hong |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |