CN102948948A - Manufacturing process for polystyrene foaming helmet with built-in composite material stiffener - Google Patents
Manufacturing process for polystyrene foaming helmet with built-in composite material stiffener Download PDFInfo
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- CN102948948A CN102948948A CN2012104375002A CN201210437500A CN102948948A CN 102948948 A CN102948948 A CN 102948948A CN 2012104375002 A CN2012104375002 A CN 2012104375002A CN 201210437500 A CN201210437500 A CN 201210437500A CN 102948948 A CN102948948 A CN 102948948A
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- helmet
- built
- composite reinforcement
- foamed polystyrene
- palm
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Abstract
The present invention provides a manufacturing process for a polystyrene foaming helmet with a built-in composite material stiffener. According to the manufacturing process, a molding mold of a composite material stiffener is manufactured, then a composite material stiffener is manufactured in the molding mold, and finally the manufactured composite material stiffener is placed into a polystyrene foaming helmet molding mold to carry out integration molding of the stiffener and the helmet. According to the present invention, the composite material stiffener is arranged inside the polystyrene foaming helmet, such that anti-shock strength of the polystyrene foaming helmet is substantially improved, breaking spreading of the helmet in the case of high impact can be avoided, user head safety can be effectively protected, and a safety performance of the polystyrene foaming helmet is substantially improved.
Description
Technical field
The present invention relates to the manufacture craft of the helmet, specifically a kind of manufacture craft of the foamed polystyrene helmet of built-in composite reinforcement.
Background technology
In relatively fiercer motion was moved in bicycle, skating etc., for preventing contingency to athletic head injury, athletic head need to be worn the helmet and protect.The advantages such as at present, existing protective helmet generally adopts the polystyrene material of expandability to make on the market, and that the helmet of making has is lightweight, thermal diffusivity is good.But the anti-shock strength of the polystyrene helmet is not high, in the situation that high impact, the helmet very easily fragmentation scatters, and causes user's head to can not get effective protection.
Summary of the invention
In view of the deficiencies in the prior art and defective, the invention provides a kind of manufacture craft of the foamed polystyrene helmet of built-in composite reinforcement.
In order to achieve the above object, the present invention has adopted following technical scheme:
A kind of manufacture craft of the foamed polystyrene helmet of built-in composite reinforcement may further comprise the steps:
The mould of a, making composite reinforcement:
A1, employing palm material are pressed the structure fabrication one cancellated skeleton palm of the helmet;
A2, paste one deck paper along the outside of skeleton palm, coat releasing agent at the surfaces externally and internally of paper;
A3, apply one deck gypsum at the outer surface of paper, and solidify, form the plaster mold that envelopes this layer paper;
A4, apply the mixture of one deck vulcanizing agent and liquid-state silicon gel in the inboard of skeleton palm, and solidify, formation envelopes the silica gel mould of this skeleton palm;
A5, at inboard moulding one fixed mould of silica gel mould;
After a6, fixed mould solidify, remove plaster mold, paper and skeleton palm, form the net groove that conforms to the structure of skeleton palm on the silica gel mould;
B, making composite reinforcement:
B1, provide a cordage, this cordage and liquid resin are infiltrated;
B2, the cordage that will infiltrate resin are placed along the net groove on the silica gel mould, and solidify, and resin and cordage are condensated as a whole, and form the cancellated composite reinforcement that conforms to helmet structure;
The foamed polystyrene helmet of c, the built-in composite reinforcement of moulding: the composite reinforcement is taken out from the silica gel mould, and be placed in the mould of the foamed polystyrene helmet it one-body molded with the helmet.
As the preferred technical solution of the present invention: the rib diameter of described skeleton palm is 2mm-5mm.
As the preferred technical solution of the present invention: the thickness of paper is 0.5mm in the described a2 step.
As the preferred technical solution of the present invention: the releasing agent in the described a2 step is vaseline or demoulding wax.
As the preferred technical solution of the present invention: the mixture of vulcanizing agent and liquid-state silicon gel is brushed several times in the described a4 step, repeats brushing next time after the mixture solidified of each brushing again.
As the preferred technical solution of the present invention: the mass ratio of vulcanizing agent and liquid-state silicon gel is 1.5:98.5 in the described mixture.
As the preferred technical solution of the present invention: described fixed mould adopts gypsum material or glass-reinforced plastic material.
As the preferred technical solution of the present invention: be added with curing agent in the liquid resin that described cordage infiltrates.
As the preferred technical solution of the present invention: described cordage is wherein a kind of in carbon fiber rope, glass cord, aramid fiber rope, the nylon fiber rope.
As the preferred technical solution of the present invention: described resin is wherein a kind of in epoxy resin, vinyl ester resins, the unsaturated polyester resin.
Compared with prior art; the present invention arranges the composite reinforcement in the foamed polystyrene helmet; greatly improved the anti-shock strength of the foamed polystyrene helmet; in the situation that high impact can avoid the fragmentation of the helmet to scatter; effectively protect user's head safety, improved greatly the security performance of the foamed polystyrene helmet.
Description of drawings
Fig. 1 is the schematic flow sheet of making composite reinforcement mould among the present invention.
Fig. 2 is the side view of skeleton palm among the present invention.
Fig. 3 is the schematic diagram of making the composite reinforcement among the present invention.
Fig. 4 is the schematic diagram of the foamed polystyrene helmet of the built-in composite reinforcement of moulding among the present invention.
The specific embodiment
Make composite reinforcement mould, may further comprise the steps:
See also Fig. 1, adopt palm material (such as atomized ash, unsaturated-resin etc.) to make a cancellated skeleton palm 101 by the shape of the helmet; See also Fig. 2, be the side view of skeleton palm 101; But the structure of this skeleton palm 101 is not limited to this, and the structure of this skeleton palm 101 (shape of skeleton palm and rib distribute) needs to conform to the structure (shape of the helmet and the distribution of air-vent) of the helmet that will produce.This skeleton palm 101 can pass through mould 102 rheo-die-casting moulding, and the rib diameter of skeleton palm 101 is 2mm-5mm.
After 101 moulding of skeleton palm, pasting a layer thickness along the outside of skeleton palm 101 is the paper 103 of 0.5mm, and coats the releasing agent (not shown) at the surfaces externally and internally of paper 103, and releasing agent can be selected vaseline or demoulding wax.Then, at outer surface coating one deck gypsum of paper 103, and solidify, form the plaster mold 104 that envelopes this layer paper 103.
Apply subsequently the mixture of one deck vulcanizing agent and liquid-state silicon gel in the inboard of skeleton palm 101, the mass ratio of vulcanizing agent and liquid-state silicon gel is 1.5:98.5 in the mixture.This mixture can be brushed several times, so that mixture reaches the thickness that can envelope skeleton palm 101, repeats brushing next time after the mixture solidified of each brushing again.After thing to be mixed solidifies, form the silica gel mould 105 that envelopes this skeleton palm 101.
After this at inboard moulding one fixed mould 106 of silica gel mould 105, this fixed mould 106 is used for supporting silica gel mould 105, and its material can adopt quality harder, and is easy to gypsum material or the glass-reinforced plastic material of moulding.
After fixed mould 106 solidifies, remove plaster mold 104, paper 103 and skeleton palm 101, will form the net groove 107 that conforms to the structure of skeleton palm 101 on the silica gel mould 105; So far, composite reinforcement mould completes, and cleans out rear stand-by.
Make the composite reinforcement, may further comprise the steps:
One cordage is provided, and what this cordage can be in carbon fiber rope, glass cord, aramid fiber rope, the nylon fiber rope is wherein a kind of.At first, the resin of this cordage with liquid state infiltrated.This resin can be in epoxy resin, vinyl ester resins, the unsaturated polyester resin wherein a kind of.
See also Fig. 3, the cordage 108 that then will infiltrate resin is placed along the net groove 107 on the silica gel mould 105, and solidifies, and resin and cordage are condensated as a whole, and forms the cancellated composite reinforcement that conforms to helmet structure.Wherein, placement plurality of fibers rope 108 that can be overlapping in the net groove 107 on the silica gel mould 105, after the curing, plurality of fibers rope 108 can coagulate and be one, and intensity effect is better.Simultaneously, in this step, for shortening the hardening time of resin and cordage, can in resin, add curing agent.The addition of curing agent is according to the kind of used resin and the requirement of hardening time and difference, as use vinyl ester resins, the allotment mass ratio of vinyl ester resins and curing agent is 98:2, and when solidification temperature was 70 ℃, be about 15-20 minute the hardening time of vinyl ester resins.
The foamed polystyrene helmet of the built-in composite reinforcement of moulding:
See also Fig. 4, make composite reinforcement 109 after, composite reinforcement 109 is taken out from silica gel mould 105, and it is placed in the mould 110 of the foamed polystyrene helmet gets final product with the helmet is one-body molded.
The above is preferred embodiment of the present invention only, is not to limit practical range of the present invention; Every equivalence of doing according to the present invention changes and revises, and is all covered by the scope of claims of the present invention.
Claims (10)
1. the manufacture craft of the foamed polystyrene helmet of a built-in composite reinforcement is characterized in that, may further comprise the steps:
The mould of a, making composite reinforcement:
A1, employing palm material are pressed the structure fabrication one cancellated skeleton palm of the helmet;
A2, paste one deck paper along the outside of skeleton palm, coat releasing agent at the surfaces externally and internally of paper;
A3, apply one deck gypsum at the outer surface of paper, and solidify, form the plaster mold that envelopes this layer paper;
A4, apply the mixture of one deck vulcanizing agent and liquid-state silicon gel in the inboard of skeleton palm, and solidify, formation envelopes the silica gel mould of this skeleton palm;
A5, at inboard moulding one fixed mould of silica gel mould;
After a6, fixed mould solidify, remove plaster mold, paper and skeleton palm, form the net groove that conforms to the structure of skeleton palm on the silica gel mould;
B, making composite reinforcement:
B1, provide a cordage, this cordage and liquid resin are infiltrated;
B2, the cordage that will infiltrate resin are placed along the net groove on the silica gel mould, and solidify, and resin and cordage are condensated as a whole, and form the cancellated composite reinforcement that conforms to helmet structure;
The foamed polystyrene helmet of c, the built-in composite reinforcement of moulding: the composite reinforcement is taken out from the silica gel mould, and be placed in the mould of the foamed polystyrene helmet it one-body molded with the helmet.
2. the manufacture craft of the foamed polystyrene helmet of a kind of built-in composite reinforcement according to claim 1, it is characterized in that: the rib diameter of described skeleton palm is 2mm-5mm.
3. the manufacture craft of the foamed polystyrene helmet of a kind of built-in composite reinforcement according to claim 1, it is characterized in that: the thickness of paper is 0.5mm in the described a2 step.
4. the manufacture craft of the foamed polystyrene helmet of a kind of built-in composite reinforcement according to claim 1, it is characterized in that: the releasing agent in the described a2 step is vaseline or demoulding wax.
5. the manufacture craft of the foamed polystyrene helmet of a kind of built-in composite reinforcement according to claim 1, it is characterized in that: the mixture of vulcanizing agent and liquid-state silicon gel is brushed several times in the described a4 step, repeats brushing next time after the mixture solidified of each brushing again.
6. a kind of manufacture craft of the foamed polystyrene helmet of built-in composite reinforcement according to claim 1 or 5, it is characterized in that: the mass ratio of vulcanizing agent and liquid-state silicon gel is 1.5:98.5 in the described mixture.
7. the manufacture craft of the foamed polystyrene helmet of a kind of built-in composite reinforcement according to claim 1 is characterized in that: described fixed mould employing gypsum material or glass-reinforced plastic material.
8. the manufacture craft of the foamed polystyrene helmet of a kind of built-in composite reinforcement according to claim 1 is characterized in that: be added with curing agent in the liquid resin that described cordage infiltrates.
9. it is characterized in that according to claim 1 or the manufacture craft of the foamed polystyrene helmet of 8 described a kind of built-in composite reinforcements: described cordage is wherein a kind of in carbon fiber rope, glass cord, aramid fiber rope, the nylon fiber rope.
10. it is characterized in that according to claim 1 or the manufacture craft of the foamed polystyrene helmet of 8 described a kind of built-in composite reinforcements: described resin is wherein a kind of in epoxy resin, vinyl ester resins, the unsaturated polyester resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104375002A CN102948948A (en) | 2012-08-27 | 2012-11-05 | Manufacturing process for polystyrene foaming helmet with built-in composite material stiffener |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210308871 | 2012-08-27 | ||
| CN201210308871.0 | 2012-08-27 | ||
| CN2012104375002A CN102948948A (en) | 2012-08-27 | 2012-11-05 | Manufacturing process for polystyrene foaming helmet with built-in composite material stiffener |
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| Publication Number | Publication Date |
|---|---|
| CN102948948A true CN102948948A (en) | 2013-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012104375002A Pending CN102948948A (en) | 2012-08-27 | 2012-11-05 | Manufacturing process for polystyrene foaming helmet with built-in composite material stiffener |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112223604A (en) * | 2020-09-26 | 2021-01-15 | 杭州华策工贸有限公司 | Mold for producing bicycle helmet and machining method of mold |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101073448A (en) * | 2006-05-19 | 2007-11-21 | 特种自行车配件公司 | Bicycle helmet with reinforcement structure |
| US20070277295A1 (en) * | 2006-05-19 | 2007-12-06 | Christopher Bullock | Bicycle helmet with reinforcement structure |
| WO2010107022A1 (en) * | 2009-03-16 | 2010-09-23 | 東レ株式会社 | Fiber reinforced resin composition, molding material, and method for producing fiber reinforced resin composition |
-
2012
- 2012-11-05 CN CN2012104375002A patent/CN102948948A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101073448A (en) * | 2006-05-19 | 2007-11-21 | 特种自行车配件公司 | Bicycle helmet with reinforcement structure |
| US20070277295A1 (en) * | 2006-05-19 | 2007-12-06 | Christopher Bullock | Bicycle helmet with reinforcement structure |
| WO2010107022A1 (en) * | 2009-03-16 | 2010-09-23 | 東レ株式会社 | Fiber reinforced resin composition, molding material, and method for producing fiber reinforced resin composition |
Non-Patent Citations (1)
| Title |
|---|
| 赵子田: "硅胶模具制作", 《农村实用科技》, no. 12, 30 December 1996 (1996-12-30) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112223604A (en) * | 2020-09-26 | 2021-01-15 | 杭州华策工贸有限公司 | Mold for producing bicycle helmet and machining method of mold |
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Application publication date: 20130306 |