CN103042648A - Preparation method for polyurethane injection molded shoes and preparation mold - Google Patents
Preparation method for polyurethane injection molded shoes and preparation mold Download PDFInfo
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- CN103042648A CN103042648A CN2012105606413A CN201210560641A CN103042648A CN 103042648 A CN103042648 A CN 103042648A CN 2012105606413 A CN2012105606413 A CN 2012105606413A CN 201210560641 A CN201210560641 A CN 201210560641A CN 103042648 A CN103042648 A CN 103042648A
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Abstract
The invention discloses a preparation method for a pair of polyurethane injection molded shoes, which comprises the following steps: an air guide film is laid on the surface of a lower die of a mold, and the lower die and a die cover are subjected to die assembly; a polyurethane mixed solution is injected into the mold, a first layer of shoe sole is formed in a foaming manner; the mold is opened, after the upper die is replaced, the upper die and the lower die are subjected to the die assembly, and at the moment, the first layer of shoe sole is reserved in the lower die; the polyurethane mixed solution is injected into the mold, a second layer of shoe sole is formed in a foaming manner; the mold is opened, and the shoe sole which is formed in a foaming manner is taken off from the lower die; and the air guide film is clipped, and the shoe sole preparation is completed. The preparation mold comprises a mold body, which consists of the die cover, the upper die and the lower die, a die cavity for the polyurethane mixed solution injection is formed in the lower die, the air guide film is formed on the surface of the lower die in a matched manner, and a cavity matched with the die cavity of the lower die is formed in the upper die. According to the invention, the air in the mold can be effectively discharged, the product qualified rate is improved, and the cost is low.
Description
Technical field
The present invention relates to a kind of polyurethane injection moulded shoes, be specifically related to a kind of preparation method and preparation mould of polyurethane injection moulded shoes.
Background technology
Polyurethane is the polymer that contains many carbamate groups (-NHCOO-) on a kind of macromolecular structure main chain, it is very widely synthetic material of a class purposes, and its suitability for industrialized production is mainly prepared by the various polyalcohols combination material that contain terminal hydroxy group and multicomponent isocyanate reaction.Select the raw material of different numbers and type functional group, adopt different synthetic and preparation technologies, can prepare that performance is different, the various polyurethane of manifestation mode, polyurethane has become indispensable material in the every field such as daily clothing, food, lodging and transportion--basic necessities of life of people.
An important use of polyurethane is exactly the manufactured materials as the injection moulded shoes sole, and compares the advantage such as have environmental protection, light, comfortable, not yielding at the bottom of other city shoe, therefore more and more is subject to consumer's favor.Usually the polyurethane injection moulded shoes comprises the sole identical by two-layer material, that density is different, by polyurethane mixed liquor direct foaming in mould, so-called foaming says that exactly the foaminess resin directly inserts in the mould, makes its melted by heating, form the gas-liquid saturated solution, by nucleation, form a large amount of small complexs, complex increases, support the foam plastic, foaming method commonly used has three kinds: physical blowing method, chemical blowing process, mechanical foaming method.
The polyurethane injection moulded shoes adopts the mold closing cast usually at present, before the polyurethane mixed liquor is injected mould, first at the die surface release agent spraying, again the polyurethane mixed liquor is poured into mould, follows closed mould, the rear demoulding to be formed.Above-mentioned preparation method has the following disadvantages in actual use: in the ⑴ polyurethane mixed liquor foamed forming process, mould is in closed state, residual air can not effectively be discharged in the mould, cause having on the product incompleteness of Bubble formation, be that product percent of pass is low, appearance effect is poor, even can have influence on the physical property of sole; If avoid the residual of air, adopt vacuum pumping technology can accomplish effectively to discharge air behind the matched moulds, but cost is higher like this, medium-sized and small enterprises can't bear; ⑶ the releasing agent that double-deck sole joint portion is residual affects the bonding strength of sole, directly affects the quality of finished product shoes.
Summary of the invention
The object of the invention provides a kind of preparation method and preparation mould of polyurethane injection moulded shoes, use the method and mould, so that the air in the mould can effectively be discharged in the preparation process, and need not to use releasing agent, improved the qualification rate of product, and cost is also lower.
Technical scheme of the present invention is: a kind of preparation method of polyurethane injection moulded shoes comprises the steps:
Step 1, lay air-guiding film on the counterdie of mould surface, again with counterdie and die cap matched moulds;
Step 2, inject polyurethane mixed liquor, foaming ground floor sole in the mould;
Step 3, open mould, take die cap away, change behind the patrix and the counterdie matched moulds, this moment, the ground floor sole was stayed in the counterdie;
Step 4, inject polyurethane mixed liquor, foaming second layer sole in the mould;
Step 6, pruning air-guiding film are finished the sole preparation.
A kind of preparation mould of polyurethane injection moulded shoes, comprise a die ontology, described die ontology is made of die cap, patrix and counterdie, offer in the described counterdie for the die cavity that injects polyurethane mixed liquor foaming ground floor sole, described counterdie surface engagement is provided with an air-guiding film, offers the cavity that cooperates with the die cavity of described counterdie, be used for injecting polyurethane mixed liquor foaming second layer sole in the described patrix.
Further technical scheme, described air-guiding film is made of the synthetic Web materials of tow groups, spaced apartly on the described air-guiding film is provided with a plurality of gas ports.
Further technical scheme, described die cap are a flat board of fitting with the counterdie surface.
Advantage of the present invention is:
1. the present invention is by laying one deck air-guiding film on the counterdie surface, so that in the preparation process in the mould residual air can effectively be discharged from by air-guiding film, improved the qualification rate of product, and outward appearance is also comparatively attractive in appearance, the physical property of product also is guaranteed;
2. double-deck sole bound fraction of the present invention does not use releasing agent, so that the joint portion bond strength of double-deck sole increases, quality is better;
3. the present invention need not to use vacuum pumping technology to discharge the interior air of mould as compared with the past, and cost is lower, is fit to generally use.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples:
Fig. 1 is the structural representation when preparing the ground floor sole among the present invention;
Fig. 2 is the structural representation when preparing second layer sole among the present invention;
Fig. 3 is the floor map of air-guiding film among the present invention.
Wherein: 1, die cap; 2, patrix; 3, counterdie; 4, die cavity; 5, air-guiding film; 6, cavity; 7, gas port.
The specific embodiment
Referring to shown in Fig. 1 to 3, a kind of preparation mould of polyurethane injection moulded shoes, comprise a die ontology, described die ontology is made of die cap 1, patrix 2 and counterdie 3, offer in the described counterdie 3 for the die cavity 4 that injects the polyurethane mixed liquor, described counterdie 3 surface engagement are provided with an air-guiding film 5, offer the cavity 6 that cooperates with the die cavity 4 of described counterdie 3 in the described patrix 2, described air-guiding film 5 is made of the synthetic Web materials of tow groups, spaced apartly on the described air-guiding film 5 be provided with a plurality of gas ports 7, described die cap is a flat board of fitting with the counterdie surface.
A kind of preparation method of polyurethane injection moulded shoes comprises the steps:
Step 1, lay air-guiding film on the counterdie of mould surface, again with counterdie and die cap matched moulds;
Step 2, inject polyurethane mixed liquor, foaming ground floor sole in the mould;
Step 3, open mould, change behind the patrix and the counterdie matched moulds, this moment, the ground floor sole was stayed in the counterdie;
Step 4, inject polyurethane mixed liquor, foaming second layer sole in the mould;
Step 6, pruning air-guiding film are finished the sole preparation.
The polyurethane injection moulded shoes is in preparation process, behind the mould matched moulds, air residual in the mould is squeezed the mould upper end by the pressure that polyurethane foam produced, discharge in gap between the fibre bundle on the air-guiding film, when preparation second layer sole, because the ground floor sole is identical with the material of second layer sole, therefore, the material part of second layer sole can be passed the gas port of air-guiding film, be combined with the ground floor sole, and the double-deck sole bound fraction need not to use releasing agent, so greatly improved the adhesion of double-deck sole.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the people who is familiar with technique can understand content of the present invention and according to this enforcement, can not limit protection scope of the present invention with this.The all Spirit Essence of main technical schemes is done according to the present invention equivalent transformation or modification all should be encompassed within protection scope of the present invention.
Claims (4)
1. the preparation method of a polyurethane injection moulded shoes is characterized in that, comprises the steps:
Step 1, lay air-guiding film on the counterdie of mould surface, again with counterdie and die cap matched moulds;
Step 2, inject polyurethane mixed liquor, foaming ground floor sole in the mould;
Step 3, open mould, take die cap away, change behind the patrix and the counterdie matched moulds, this moment, the ground floor sole was stayed in the counterdie;
Step 4, inject polyurethane mixed liquor, foaming second layer sole in the mould;
Step 5, open mould, the sole of foaming is deviate from from counterdie;
Step 6, pruning air-guiding film are finished the sole preparation.
2. the preparation mould of a polyurethane injection moulded shoes, comprise a die ontology, it is characterized in that: described die ontology is by die cap (1), patrix (2) and counterdie (3) consist of, offer in the described counterdie (3) for the die cavity (4) that injects polyurethane mixed liquor foaming ground floor sole, described counterdie (3) surface engagement is provided with an air-guiding film (5), offers in the described patrix (2) to cooperate with the die cavity (4) of described counterdie (3), be used for injecting the cavity (6) of polyurethane mixed liquor foaming second layer sole.
3. the preparation mould of a kind of polyurethane injection moulded shoes according to claim 2 is characterized in that: described air-guiding film is made of the synthetic Web materials of tow groups, the upper spaced apart a plurality of gas ports (7) that are provided with of described air-guiding film (5).
4. the preparation mould of a kind of polyurethane injection moulded shoes according to claim 2 is characterized in that: described die cap is a flat board of fitting with the counterdie surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210560641.3A CN103042648B (en) | 2012-12-21 | 2012-12-21 | Preparation method for polyurethane injection molded shoes and preparation mold |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210560641.3A CN103042648B (en) | 2012-12-21 | 2012-12-21 | Preparation method for polyurethane injection molded shoes and preparation mold |
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| CN103042648A true CN103042648A (en) | 2013-04-17 |
| CN103042648B CN103042648B (en) | 2015-01-21 |
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| CN201210560641.3A Active CN103042648B (en) | 2012-12-21 | 2012-12-21 | Preparation method for polyurethane injection molded shoes and preparation mold |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104441409A (en) * | 2014-11-04 | 2015-03-25 | 林仔孺 | Production process of foamed TPU (Thermoplastic polyurethane) sole |
| CN104875323A (en) * | 2015-05-27 | 2015-09-02 | 佛山市南方鞋材有限公司 | Shoe outsole production technology |
| CN109591345A (en) * | 2018-12-27 | 2019-04-09 | 山东百华鞋业有限公司 | It is a kind of to reduce the Shooting Technique for injecting big basis bubble |
| CN109810236A (en) * | 2018-09-21 | 2019-05-28 | 张东井 | A kind of production method of polyurethane shoe-sole and urethane raw for this method |
| CN110000982A (en) * | 2019-03-21 | 2019-07-12 | 福建钜闽机械有限公司 | A kind of safe handling method of Novel EVA secondary frothing forming machine |
| CN113858530A (en) * | 2021-10-13 | 2021-12-31 | 惠东县黄埠新三友鞋楦厂 | Method for shaping, injection molding and edge folding of women dress sandals |
| WO2022116580A1 (en) * | 2020-12-02 | 2022-06-09 | 浙江华峰新材料有限公司 | Product forming method, product, and shoe |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5503786A (en) * | 1995-08-15 | 1996-04-02 | Yang; Kuo-Nan | Method for forming air chamber in shoe sole |
| CN1980778A (en) * | 2004-05-12 | 2007-06-13 | 木桥泡沫塑料公司 | Vented mold and method for producing molded article |
| CN101637958A (en) * | 2009-03-24 | 2010-02-03 | 天愉国际有限公司 | Forming method of soles |
| CN203004198U (en) * | 2012-12-21 | 2013-06-19 | 苏州天华超净科技股份有限公司 | Die for preparing polyurethane injection shoe |
-
2012
- 2012-12-21 CN CN201210560641.3A patent/CN103042648B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5503786A (en) * | 1995-08-15 | 1996-04-02 | Yang; Kuo-Nan | Method for forming air chamber in shoe sole |
| CN1980778A (en) * | 2004-05-12 | 2007-06-13 | 木桥泡沫塑料公司 | Vented mold and method for producing molded article |
| CN101637958A (en) * | 2009-03-24 | 2010-02-03 | 天愉国际有限公司 | Forming method of soles |
| CN203004198U (en) * | 2012-12-21 | 2013-06-19 | 苏州天华超净科技股份有限公司 | Die for preparing polyurethane injection shoe |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104441409A (en) * | 2014-11-04 | 2015-03-25 | 林仔孺 | Production process of foamed TPU (Thermoplastic polyurethane) sole |
| CN104875323A (en) * | 2015-05-27 | 2015-09-02 | 佛山市南方鞋材有限公司 | Shoe outsole production technology |
| CN109810236A (en) * | 2018-09-21 | 2019-05-28 | 张东井 | A kind of production method of polyurethane shoe-sole and urethane raw for this method |
| CN109810236B (en) * | 2018-09-21 | 2022-04-12 | 张东井 | Method for manufacturing polyurethane sole and polyurethane raw material used for method |
| CN109591345A (en) * | 2018-12-27 | 2019-04-09 | 山东百华鞋业有限公司 | It is a kind of to reduce the Shooting Technique for injecting big basis bubble |
| CN110000982A (en) * | 2019-03-21 | 2019-07-12 | 福建钜闽机械有限公司 | A kind of safe handling method of Novel EVA secondary frothing forming machine |
| WO2022116580A1 (en) * | 2020-12-02 | 2022-06-09 | 浙江华峰新材料有限公司 | Product forming method, product, and shoe |
| CN113858530A (en) * | 2021-10-13 | 2021-12-31 | 惠东县黄埠新三友鞋楦厂 | Method for shaping, injection molding and edge folding of women dress sandals |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103042648B (en) | 2015-01-21 |
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Address after: 215121 No. 99, Shuang Ma Street, Suzhou Industrial Park, Jiangsu, China Patentee after: Suzhou Tianhua New Energy Technology Co.,Ltd. Address before: No. 99, Shuangma Street, Suzhou Industrial Park, Suzhou, Jiangsu 215121 Patentee before: SUZHOU TA&A ULTRA CLEAN TECHNOLOGY Co.,Ltd. |
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