CN203779875U - Fast heating vacuum forming mold - Google Patents
Fast heating vacuum forming mold Download PDFInfo
- Publication number
- CN203779875U CN203779875U CN201420064748.3U CN201420064748U CN203779875U CN 203779875 U CN203779875 U CN 203779875U CN 201420064748 U CN201420064748 U CN 201420064748U CN 203779875 U CN203779875 U CN 203779875U
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- China
- Prior art keywords
- counterdie
- carbon fiber
- mold
- fast heating
- lower mold
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- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a fast heating vacuum forming mold, comprising a lower mold and an upper mold, wherein the lower mold is a fixed mold; the upper mold is a lifting mold; the upper mold comprises an elastic film and a frame for keeping the tension of the elastic film; the upper mold is controlled by a drive pressure device to move up and down, carries out die assembly or die sinking operations relative to the lower mold; a carbon fiber sheet is arranged above the lower mold in advance; the lower mold is quickly heated to achieve the preset temperature by virtue of a film-type electric heating plate buried into the lower mold when the upper mold and the lower mold are clamped, and then the lower mold and the elastic film are vacuumized to form a negative pressure state, so that the elastic film deforms along with the lower mold, evenly distributed force is exerted on the carbon fiber sheet arranged on a die cavity or a mold block of the lower mold, the carbon fiber sheet is sized, and a carbon fiber product is formed after resin is solidified.
Description
Technical field
The utility model is relevant with the forming technique that carbon fiber or glass fibre are made product.
Background technology
Weave with carbon fiber (or glass fibre) base material forming and be used in a large number computer, electronics and communication product.The forming method of carbon fiber product is: carbon fibre initial rinse fabric is slowly heated to after uniform temperature, keeps 40-80 minute, then naturally cooling, moulding total time is at least wanted 60 minutes.Long molding time is unfavorable for producing the lifting of efficiency, and, in HTHP forming process, be impregnated in that resin in fiber cloth is subject to long-time temperatures involved so that mobility uprises, resin slightly can down run off, so that surface resin forms inhomogeneous situation, need in the mode of surface spraying, finishing is even again.
Utility model content
The purpose of this utility model, is to provide a kind of Fast Heating vacuum forming mould, can overcome above-mentioned defect, shortens the carbon fiber forming time, improves and produces efficiency.
For achieving the above object, the utility model is by the following technical solutions:
A kind of Fast Heating vacuum forming mould, it comprises:
One counterdie is fixed die; This counterdie provides at least one forming unit; One carbon fiber sheet is positioned on this forming unit; In this counterdie, bury the thin-film electro backing of this counterdie temperature of a control underground; This counterdie is established a suction duct, the surface of this this counterdie of suction hole link, and this suction duct is by a vacuum draw switch control conducting or close, and this vacuum draw switch connects a vacuum suction apparatus; This counterdie is separately established a vent cap, and this vent cap is communicated with the surface of this counterdie, and this vent cap is allayed switch control conducting or closed by a vacuum, and this vacuum allays switch and connects an air gatherer; The upper surface of this counterdie has been peripherally installed with gas seal member;
One patrix is lifting mould; This patrix comprises that periphery that a flexible sheet and is incorporated into this flexible sheet is to keep the framework of the suitable tension force of this diaphragm;
One drives and pressue device, is erected at the top of this patrix, and its telescoping rod is connected in this framework, in order to drive this patrix lifting displacement.
In a preferred embodiment, described flexible sheet is to be made up of glue material, thickness 1mm～2mm.
In a preferred embodiment, the carbon fiber woven cloth that described carbon fiber sheet is pre-soaked resin.
In a preferred embodiment, described forming unit is die cavity or module.
In a preferred embodiment, described carbon fiber sheet is the carbon fiber woven cloth that does not contain resin pickup.
In a preferred embodiment, described forming unit is die cavity.
In a preferred embodiment, described counterdie also comprises a resin injection passage being connected with resin injection device.
The utility model beneficial effect is: by thin-film electro backing, counterdie is rapidly heated and reaches predetermined temperature, shorten carbon fiber finished product molding time, and the resin of avoiding being impregnated in fiber cloth is subject to long-time temperatures involved and the inhomogeneous situation in surface occurs.By thin-film electro backing, make moulding required time foreshorten to 8-10 minute, significantly promote and produce efficiency.The duration of heat of counterdie be can control by thin-film electro backing, according to the characteristic of carbon fibre initial rinse resin, thermoset forming or thermoplastic shaping carried out.Interrupt the heating of thin-film electro backing, after upper and lower mould die sinking, can reach the preliminary cooling effect of carbon fiber product by extraneous air.Adopt flexible sheet to coordinate vacuum technique, make the elastic sheet can be along counterdie and forming unit thereof and be out of shape, the preimpregnation carbon fiber sheet being arranged in this forming unit is bestowed to the strength being evenly distributed, this carbon fiber sheet can be shaped according to the model of forming unit completely.Interrupt the heating of thin-film electro backing, after upper and lower mould die sinking, can reach the preliminary cooling effect of carbon fiber product by extraneous air.Can pass through vacuum cups, carbon fiber product is taken out from counterdie, move to and in a cooling frame, carry out cooling and shaping.This cooling frame has the die cavity identical with the forming unit of counterdie or module, maintains according to this shape of this carbon fiber product, and can be by the mode of vacuum draw, makes carbon fiber product shape sizing according to this die cavity or module in cooling process.
Brief description of the drawings
Fig. 1 is plane of the present utility model.
Fig. 2 is the generalized section of forming unit of the present utility model matched moulds while being module.
Fig. 3 is the generalized section of forming unit of the present utility model matched moulds while being die cavity.
Fig. 4 is the schematic diagram that the utility model is implemented in resin metaideophone moulding (RTM).
Drawing reference numeral: 10-counterdie; 11-forming unit; 111-die cavity; 112-module; 12-thin-film electro backing; 13-aspirates duct; 14-vacuum draw switch; 15-vent cap; 16-vacuum allays switch; 17-gas seal member; 18-resin injection passage; 20-patrix; 21-flexible sheet; 22-framework; 30-drives and pressue device; 31-pedestal; 40-carbon fiber sheet.
Detailed description of the invention
Below only with embodiment, the enforcement aspect that the utility model is possible is described, however not in order to limit the category of the utility model institute wish protection, first give chat bright.
As Fig. 1 to Fig. 3, the utility model Fast Heating vacuum forming mould, comprising:
One counterdie 10 and a patrix 20, this counterdie 10 is fixed die; This patrix 20 is lifting mould, and this patrix 20 is subject to the control of a driving and pressue device 30 and moves up and down, and carries out matched moulds or die sinking action with respect to this counterdie 10.
This counterdie 10 provides at least one forming unit 11, and described forming unit 11 can be die cavity 111(as Fig. 3) or module 112(as Fig. 1).In this counterdie 10, bury a thin-film electro backing 12 underground, control this counterdie 10 and be rapidly heated and lower the temperature.This counterdie 10 is established a suction duct 13, this suction duct 13 is communicated with the surface of this counterdie 10, this suction duct 13 is controlled conducting or is closed by a vacuum draw switch 14, this vacuum draw switch 14 connects a vacuum suction apparatus (not shown), in order to the space between counterdie 10 and patrix 20 matched moulds is vacuumized into negative pressure state.This counterdie 10 is separately established a vent cap 15, this vent cap 15 is communicated with the surface of this counterdie 10, this vent cap 15 allays switch 16 by a vacuum and controls conducting or close, this vacuum allays switch 16 and connects an air gatherer (not shown), air is imported between counterdie 10 and patrix 20, remove above-mentioned negative pressure state, patrix 10, counterdie 20 are separated.The upper surface ring of this counterdie 10 is established a gas seal member 17.
This patrix 20 comprises that a flexible sheet 21 and is incorporated into this flexible sheet 21 to keep the framework 22 of the suitable tension force of this diaphragm.
This driving and pressue device 30 are erected at the top of this patrix 20 by a pedestal 31, its telescoping rod 31 is through these pedestal 31 these frameworks 22.
The flexible sheet 21 that the utility model uses is silica gel material, the about 1mm～2mm of thickness, and heat resisting temperature is 300 DEG C.Set this driving and pressue device 30 and bestow when the matched moulds pressure of patrix 20 depending on the thickness of this flexible sheet 21 and elasticity.
The carbon fiber sheet 40 of one pre-soaked resin is placed on the forming unit 11 of this counterdie 10, this counterdie 10 reaches a predetermined temperature by these thin-film electro backing 12 fast heatings, by softening the carbon fiber sheet of pre-soaked resin 40, afterwards, this driving and pressue device 30 drive, and order about this patrix 20 and move down, with counterdie 10 matched moulds, this flexible sheet 21 is covered in the whole upper surface of this patrix 20, and closely sealed with this gas seal member 17.After this patrix 20 and counterdie 10 matched moulds, this vacuum draw switch 14 is opened, this vacuum suction apparatus starts, to between this counterdie 10 and flexible sheet 21, vacuumize and be negative pressure state, this flexible sheet 21 is out of shape along this counterdie 10 and forming unit 11 thereof, and the preimpregnation carbon fiber sheet 40 being arranged in this forming unit 11 is bestowed to the strength being evenly distributed, and makes this carbon fiber sheet 40 according to this forming unit 11 and shapes, after hardening of resin, form a carbon fiber finished product.
Die sinking after moulding, first this vacuum draw switch 14 and this vacuum suction apparatus are closed, then open this vacuum and allay switch 16 and air gatherer, air is imported between counterdie 10 and flexible sheet 21, remove above-mentioned negative pressure state, patrix 20, counterdie 10 are separated.
Can pass through vacuum cups, carbon fiber product is taken out from counterdie 10, move to and in a cooling frame, carry out cooling and shaping.This cooling frame has the die cavity identical with the forming unit 11 of this counterdie 10 or module, maintains according to this shape of this carbon fiber product, and can be by the mode of vacuum draw, makes carbon fiber product shape sizing according to this die cavity or module in cooling process.
For ease of the carbon fiber product demoulding, in its surface sprinkling mould release, or coated mould release membrance all contributes to the goods demoulding.
As Fig. 4, the utility model Fast Heating vacuum forming mould is also applicable to resin metaideophone moulding (Resin Transfer Molding, RTM), establish resin injection passage 18 in counterdie 10, connect resin injection device (not shown), the carbon fiber woven cloth that does not contain resin pickup is placed in the forming unit 11 of counterdie 10, this forming unit 11 is die cavity, apparent surface in this counterdie 10 and this flexible sheet 21 is coated with last layer releasing agent in advance, close after mould, heat this thin-film electro backing 12 Fast Heating counterdies 10, air between counterdie 10 and this flexible sheet 21 is extracted into vacuum negative pressure condition with vavuum pump, then the resin that adds catalyst at room temperature can react sclerosis is slowly injected to this forming unit via this resin injection passage 18, until be all full of resin in forming unit 11, and resin is toward impregnation on the thickness direction of this carbon fiber woven cloth.Treat that resin reaction is complete, can take out finished product by demoulding.
Claims (7)
1. a Fast Heating vacuum forming mould, is characterized in that, it comprises:
One counterdie is fixed die; This counterdie provides at least one forming unit; One carbon fiber sheet is positioned on this forming unit; In this counterdie, bury the thin-film electro backing of this counterdie temperature of a control underground; This counterdie is established a suction duct, the surface of this this counterdie of suction hole link, and this suction duct is by a vacuum draw switch control conducting or close, and this vacuum draw switch connects a vacuum suction apparatus; This counterdie is separately established a vent cap, and this vent cap is communicated with the surface of this counterdie, and this vent cap is allayed switch control conducting or closed by a vacuum, and this vacuum allays switch and connects an air gatherer; The upper surface of this counterdie has been peripherally installed with gas seal member;
One patrix is lifting mould; This patrix comprises that periphery that a flexible sheet and is incorporated into this flexible sheet is to keep the framework of the suitable tension force of this diaphragm;
One drives and pressue device, is erected at the top of this patrix, and its telescoping rod is connected in this framework, in order to drive this patrix lifting displacement.
2. according to the Fast Heating vacuum forming mould described in claim 1, it is characterized in that, described flexible sheet is to be made up of glue material, thickness 1mm～2mm.
3. Fast Heating vacuum forming mould according to claim 1, is characterized in that, the carbon fiber woven cloth that described carbon fiber sheet is pre-soaked resin.
4. Fast Heating vacuum forming mould according to claim 1, is characterized in that, described forming unit is die cavity or module.
5. Fast Heating vacuum forming mould according to claim 1, is characterized in that, described carbon fiber sheet is the carbon fiber woven cloth that does not contain resin pickup.
6. Fast Heating vacuum forming mould according to claim 5, is characterized in that, described forming unit is die cavity.
7. Fast Heating vacuum forming mould according to claim 6, is characterized in that, described counterdie also comprises a resin injection passage being connected with resin injection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420064748.3U CN203779875U (en) | 2014-02-13 | 2014-02-13 | Fast heating vacuum forming mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420064748.3U CN203779875U (en) | 2014-02-13 | 2014-02-13 | Fast heating vacuum forming mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203779875U true CN203779875U (en) | 2014-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420064748.3U Expired - Fee Related CN203779875U (en) | 2014-02-13 | 2014-02-13 | Fast heating vacuum forming mold |
Country Status (1)
| Country | Link |
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| CN (1) | CN203779875U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105034411A (en) * | 2015-09-02 | 2015-11-11 | 江苏恒神股份有限公司 | Fabric prefabricated body preparation device and method for quick formation of composite material |
| CN106744637A (en) * | 2017-01-09 | 2017-05-31 | 上海盛辉塑料包装有限公司 | Flattening device and the back of seat for vehicle production equipment with the flattening device |
| CN108673909A (en) * | 2018-04-28 | 2018-10-19 | 武汉理工大学 | A kind of carbon fiber product molding/decoration integrated technique |
| CN110654040A (en) * | 2019-09-27 | 2020-01-07 | 珂尔默(东莞)制造技术有限公司 | Thermal diaphragm preforming device for composite material shell and working method of thermal diaphragm preforming device |
| CN114603881A (en) * | 2022-03-16 | 2022-06-10 | 广州科莱瑞迪医疗器材股份有限公司 | Die pressing equipment and processing method for composite material |
-
2014
- 2014-02-13 CN CN201420064748.3U patent/CN203779875U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105034411A (en) * | 2015-09-02 | 2015-11-11 | 江苏恒神股份有限公司 | Fabric prefabricated body preparation device and method for quick formation of composite material |
| CN106744637A (en) * | 2017-01-09 | 2017-05-31 | 上海盛辉塑料包装有限公司 | Flattening device and the back of seat for vehicle production equipment with the flattening device |
| CN108673909A (en) * | 2018-04-28 | 2018-10-19 | 武汉理工大学 | A kind of carbon fiber product molding/decoration integrated technique |
| CN110654040A (en) * | 2019-09-27 | 2020-01-07 | 珂尔默(东莞)制造技术有限公司 | Thermal diaphragm preforming device for composite material shell and working method of thermal diaphragm preforming device |
| CN114603881A (en) * | 2022-03-16 | 2022-06-10 | 广州科莱瑞迪医疗器材股份有限公司 | Die pressing equipment and processing method for composite material |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20160213 |