Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

rigid core

A rigid core and core technology, applied to tires, other household appliances, household appliances, etc., can solve problems such as difficult implementation, achieve efficient assembly, high precision and stable assembly, and prevent positional deviation.

Inactive Publication Date: 2016-03-30
SUMITOMO RUBBER IND LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the case of filling the inner cavity portion a2 of the core main body a1 with the above-mentioned heating fluid for internal heating, it is difficult to carry out the operation because of the danger of leakage of the heating fluid from between the core split molds c and c.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • rigid core
  • rigid core
  • rigid core

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] Hereinafter, embodiments of the present invention will be described in detail.

[0035] Such as figure 1 , 2 As shown, the rigid core 1 of the present embodiment has a hollow annular core body 3 having a tire molding surface S on the outer surface.

[0036] Then, a green tire T is formed by sequentially pasting tire components such as an inner liner, a carcass ply, a belt ply, a sidewall rubber, and a tread rubber on the above-mentioned tire molding surface S, and the green tire T is combined with Rigid core 1 is put into vulcanization mold 50 ( Figure 9 shows a part thereof), the green tire T is heated and vulcanized in cooperation with the vulcanization mold 50 described above. In addition, the tire molding surface S includes a tread molding surface Sa forming the tread inner surface of the raw tire T, and a sidewall molding surface Sb forming the sidewall inner surface and the bead inner surface of the green tire T. It is roughly consistent with the shape of th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a rigid mold core, which can not cause the leakage of heated fluid, and can be used for the internal heating having the high safety performance. The rigid mold core is provided with a mold core main body constituted by a plurality of mold core composition molds, which are divided along the periphery of the tire, a cylinder-shaped core part inserted in a central hole of the mold core main body, and a pair of side wall bodies disposed on two sides of the mold core main body in an axial direction. First wedge-shaped connection parts are disposed on an outer peripheral surface of the core, and second wedge-shaped connection parts are disposed on the inner peripheral surface of various mold core combination molds. The inner cavity surfaces of the various mold core combination molds are provided with heating devices used for the tire surfaces, the first electric heating devices of the heating devices used for the sides of the tire, the second electric heating devices disposed on the radial inner peripheral surface of the core part. Temperature sensors are embedded in various crown wall parts.

Description

technical field [0001] The invention relates to a rigid core equipped with an electric heater and a temperature sensor for heating and vulcanization. Background technique [0002] In recent years, in order to improve the forming accuracy of pneumatic tires, such as Figure 10 As shown in Figure (B), a method is proposed in which a rigid core a having a hollow annular core body a1 is used, and an inner liner, a carcass ply, and a belt layer are sequentially attached to the core body a1 Ply, sidewall rubber, tread rubber and other tire components are used to form a green tire T, and this green tire T is put into a vulcanization mold b together with a rigid core a, and the tire is sandwiched by the rigid core a as an inner mold A method of performing vulcanization molding with a vulcanization mold b as an outer mold, in which the core body a1 has an outer shape corresponding to the inner surface shape of the tire (for example, refer to Patent Document 1). [0003] Also, in suc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B29C33/02B29C35/02B29L30/00
CPCB29D2030/0674
Inventor 鬼松博幸高木克人吉田丰
Owner SUMITOMO RUBBER IND LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com