CN201169026Y - Mould core for producing hose by soft core method - Google Patents
Mould core for producing hose by soft core method Download PDFInfo
- Publication number
- CN201169026Y CN201169026Y CNU2007201992052U CN200720199205U CN201169026Y CN 201169026 Y CN201169026 Y CN 201169026Y CN U2007201992052 U CNU2007201992052 U CN U2007201992052U CN 200720199205 U CN200720199205 U CN 200720199205U CN 201169026 Y CN201169026 Y CN 201169026Y
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- China
- Prior art keywords
- rubber
- core rod
- core
- sebific duct
- heat
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Abstract
The utility model relates to a mould core used for rubber hose production through a soft core method. The mould core is characterized in that the mould core comprises a heat insulating outer layer (1), a flexible intermediate layer (2) and a steel wire core rope (3) which is formed through a plurality of steel wires being twisted, and both ends of the mould core are sealed by solid rubber sections (4).
Description
Technical field
The utility model relates to the rubber industry in chemical industry field, specifically, relates to a kind of technological equipment of rubber hose production usefulness.
Background technology
Rubber hose is widely used in each department of national economy, in order to transmit various materials, comprise stress-free and pressure is arranged, mordant or abrasion, so in many occasions, sebific duct need be made of multilayer material, for this reason, the moulding of sebific duct is the technology of a more complicated, needs the skeleton that uses core rod to use as moulding as a rule.Adopt the advantage of core rod moulding to be, the sebific duct quality of producing is more stable, and the density of body is better, and specification is more accurate.This class has the core method of forming can be divided into two kinds of hard core method and soft core methods, hard core method adopts seamless steel pipe or round metal bars as core rod usually, though it is durable in use, its shortcoming is, operation is many, labour intensity is high, big, the producible sebific duct limited length of auxiliary material consumption, can not produce continuously.The characteristics that adopt soft core method to produce sebific duct are: pipe can be coiled bending, and shared production site is few, and labour intensity is lower, can increase the length of producing sebific duct, helps realizing serialization production, enhances productivity.The process need that adopts this sebific duct moulding process to produce sebific duct is made the rubber core rod in advance, use this core rod again and make sebific duct, concrete operations are: make pipe earlier on the rubber core rod for preparing, pipe is deviate from core rod with hydraulic pressure after the sulfuration operation in managing.Also promptly, the process of this method production sebific duct is as follows usually:
Rubber core rod preparation → interior glue extrudes → and fabric enhancement layer → outer glue extrudes → vulcanizes → depoling → sebific duct
As seen, core rod is one of main frock during sebific duct is produced, and it has determined the quality of the internal diameter and the inner surface thereof of product.
To core rod require as follows:
1, smooth surface, diameter is accurate, even thickness;
2, heat-proof aging can stand multiple high temp sulfuration operation;
3, tensile strength height, stretcher strain is little repeatedly;
4, axially very property is good, and hydraulic pressure is deviate from easily.
In order to reach above-mentioned instructions for use, the rubber core rod that uses normally serves as a contrast to strengthen the strip rubber pole of steel wire rope at the center at present.Rubber layer wherein generally is made of the cheap general purpose rubber of natural rubber, butadiene-styrene rubber, butadiene rubber or neoprene and so on, but in the actual production practice, there is the following defective in this rubber core rod:
1, be generally service life about 12～15 times, promptly common sebific duct conditions of vulcanization (150 ℃ * 30min) under, carry out 12～15 times the sulfuration after, core rod will begin to occur season cracking;
2, core rod is through finding after the depoling that repeatedly rubber layer and steel wire floor break away from, and during depoling, water passes from rubber layer and steel wire floor, causes the depoling difficulty.
Summary of the invention
The utility model is intended to the rubber core rod that uses in the production of existing soft core method sebific duct is done structural improvement, enable durable in use, thereby and can prevent that rubber layer and steel wire rope generation break-off from can reduce the consumption of core material, reduces production costs.
The utility model is to realize like this, a kind of core rod of using with soft core method production sebific duct that promptly the utility model proposes, it is characterized in that, the formation of this core rod comprises: heat-resisting skin, flexible intermediate layer and the wire-core rope [3] that forms by steel wire strand twisting, at the two ends of core rod with solid rubber segments end socket.Just, the utility model proposes a kind of rubber core rod with sandwich construction, heat-resisting skin wherein is to be made of heat-resisting elastomeric material, and this heat-resistant elastomer material comprises: ethylene propylene diene rubber, fluorubber, ACM, silicon rubber, butyl rubber, halogenated butyl rubber.This is heat-resisting, the ageing-resistant elastomeric material of a class, the effect repeatedly of high-temperature steam in the time of can standing sebific duct the long period and in digester (-tor), vulcanize, but often price is higher for this class rubber, and relatively poor with the bond properties of metal (steel wire rope).In order to reduce cost and improvement and metal (steel wire rope) bonding, intermediate layer of the present utility model be designed to by high resilience and easily bonding more cheap elastomeric material constitute, comprising: butadiene-styrene rubber, butadiene rubber, natural rubber, neoprene.Like this, both guarantee the strong bonded of rubber and steel wire, and can not cause the raising of rubber core rod cost again, can also reach the long-lived purpose of core rod.
In addition, in design of the present utility model, adopted structure with solid rubber section end socket for the core rod two ends, under the hydraulic pressure, water can't penetrate between rubber layer and the wire-core rope when making depoling, guarantees can not break away from because of the infiltration of steam between rubber and the steel wire.Certainly, for guaranteeing hear resistance and with heat-resisting outer field reliably bonding, this solid rubber section should be by constituting with the same material that constitutes refractory layer.
Since adopting the utility model to produce sebific duct, the average access times of core rod have been brought up to more than 30 times from original 12～15 times, and effect is fairly obvious.
Description of drawings
Fig. 1 is the cross-sectional view of the utility model core rod; Fig. 2 is the front view of the utility model core rod; Fig. 3 is existing cross-sectional view with core rod; Fig. 4 is existing front view with core rod; Fig. 5 is the end view of the utility model core rod; Fig. 6 is existing end view with core rod.
Label among the figure is: 1---heat-resisting skin; 2---the intermediate layer; 3---the wire-core rope; 4---the solid rubber section; 5---rubber layer; 6---the wire-core rope; 7---solid rubber termination; 8---expose the termination of wire-core rope.
The specific embodiment
With embodiment the utility model is further described in detail below, but the utility model is in no way limited to this embodiment.
Embodiment
Referring to Fig. 1 and Fig. 2, design a kind of for producing the electronic-controlled power steering sebific duct core rod of φ 15.3mm internal diameter, the formation of this core rod comprises: heat-resisting skin [1], flexible intermediate layer [2] and the wire-core rope [3] that forms by steel wire strand twisting, at the two ends of core rod with solid rubber segments [4] end socket.The diameter phi 2.8mm of wire-core rope [3] wherein, the external diameter φ 11.3 ± 0.1mm of intermediate layer [2], heat-resisting skin [1] external diameter φ 15.3 ± 0.2mm, used elastomeric material Specifeca tion speeification is as follows:
| Heat-resisting outer layer rubber (the solid rubber section that comprises the core rod two ends)---ethylene propylene diene rubber | Rubber school, intermediate layer---neoprene | |
| Hot strength MPa | 13.0 | 8.0 |
| Hot strength rate of change % (150 ℃ * 168h) | -6 | -18 |
| Percentage elongation % | 300 | 400 |
| Elongation change % (150 ℃ * 168h) | -13 | -26 |
The rubber pattern core production process is as follows:
Steel wire drags coating adhesive (Kai Muluoke adhesive) → two-layer compound to extrude blank (control external diameter even) → coil and deposits → vulcanize → the bonding growth of carrying out two ends solid rubber section by mold pressing uses the electronic-controlled power steering sebific duct of this core rod production φ 15.3mm internal diameter, the utilization rate of core rod from original 12 times less than bringing up to more than 30 times.
Claims (4)
1, a kind of core rod of using with soft core method production sebific duct, it is characterized in that, the formation of this core rod comprises: heat-resisting skin [1], flexible intermediate layer [2] and the wire-core rope [3] that forms by steel wire strand twisting, at the two ends of core rod with solid rubber segments [4] end socket.
2, according to the right 1 described core rod of using with soft core method production sebific duct, it is characterized in that, described heat-resisting skin [1] is to be made of heat-resisting elastomeric material, and this heat-resistant elastomer material comprises: ethylene propylene diene rubber, fluorubber, ACM, silicon rubber, butyl rubber or halogenated butyl rubber.
3, according to the right 1 described core rod of using with soft core method production sebific duct, it is characterized in that described intermediate layer [2] are to be made of high resilience and easy bonding more cheap elastomeric material, comprising: butadiene-styrene rubber, butadiene rubber, natural rubber or neoprene.
4, according to the right 1 described core rod of using with soft core method production sebific duct, it is characterized in that described core rod two ends end socket solid rubber sections [4] are by constituting with the same material that constitutes refractory layer [1].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201992052U CN201169026Y (en) | 2007-12-13 | 2007-12-13 | Mould core for producing hose by soft core method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201992052U CN201169026Y (en) | 2007-12-13 | 2007-12-13 | Mould core for producing hose by soft core method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201169026Y true CN201169026Y (en) | 2008-12-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201992052U Expired - Lifetime CN201169026Y (en) | 2007-12-13 | 2007-12-13 | Mould core for producing hose by soft core method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201169026Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434732A (en) * | 2011-09-29 | 2012-05-02 | 巨隆集团安徽吉隆矿业有限公司 | High pressure hose molding pipe core and manufacturing technique thereof |
| CN102441998A (en) * | 2011-09-29 | 2012-05-09 | 巨隆集团安徽吉隆矿业有限公司 | Molding tube core of high-pressure rubber tube and process for preparing high-pressure rubber tube by using molding tube core |
| CN102642292A (en) * | 2012-03-15 | 2012-08-22 | 浙江峻和橡胶科技有限公司 | Manufacturing method of rubber mandrel for automotive part |
| CN107775922A (en) * | 2016-08-31 | 2018-03-09 | 盖茨液压技术（常州）有限公司 | A kind of sebific duct shaping plug |
-
2007
- 2007-12-13 CN CNU2007201992052U patent/CN201169026Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434732A (en) * | 2011-09-29 | 2012-05-02 | 巨隆集团安徽吉隆矿业有限公司 | High pressure hose molding pipe core and manufacturing technique thereof |
| CN102441998A (en) * | 2011-09-29 | 2012-05-09 | 巨隆集团安徽吉隆矿业有限公司 | Molding tube core of high-pressure rubber tube and process for preparing high-pressure rubber tube by using molding tube core |
| CN102642292A (en) * | 2012-03-15 | 2012-08-22 | 浙江峻和橡胶科技有限公司 | Manufacturing method of rubber mandrel for automotive part |
| CN102642292B (en) * | 2012-03-15 | 2016-05-25 | 浙江峻和橡胶科技有限公司 | The manufacture method of the rubber wick that auto parts and components are used |
| CN107775922A (en) * | 2016-08-31 | 2018-03-09 | 盖茨液压技术（常州）有限公司 | A kind of sebific duct shaping plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI XINSHANGXIANG AUTOMOBILE HOSES CO., LTD. Free format text: FORMER OWNER: SHANGXIANG AUTO RUBBER TUBES CO., LTD., SHANGHAI Effective date: 20121218 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200331 PUTUO, SHANGHAI TO: 201505 JINSHAN, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121218 Address after: 201505 Shanghai city Jinshan District ting Lin Zhen Ting Road 119, building 4 Patentee after: Shanghai new rubber automobile rubber hose Co., Ltd. Address before: 200331 No. 1550 South Road, Shanghai, Putuo District Patentee before: Shangxiang Auto Rubber Tubes Co., Ltd., Shanghai |
|
| CX01 | Expiry of patent term |
Granted publication date: 20081224 |
|
| CX01 | Expiry of patent term |