Electromagnetic-heating tire vulcanizing device capable of controlling heat source temperature segment by segment

Abstract

The invention relates to an electromagnetic-heating tire vulcanizing device capable of controlling heat source temperature segment by segment and belongs to the field of tire production equipment. The device is provided with a telescopic metallic inner mold and is characterized in that the inner mold consists of wide drum tiles, narrow drum tiles, an expansion and contraction mechanism and rib plates which are fixedly connected with the wide and narrow drum tiles and play a role in supporting, the wide and narrow drum tiles are arranged alternately along the circumferential direction, the longitudinal outer contour curve of each part of all the wide and narrow drum tiles forming drum tiles is consistent with the inner contour curve of a finished product tire, the wide and narrow drum tiles are tightly clung to each other so as to form a complete circle in appearance when the inner mold is in an expansion state, molding cavities are formed in the middle parts of surfaces, in contact with the rib plates, of the wide and narrow drum tiles, phase-change materials are filled in the molding cavities, two electromagnetic coils with the same inductance are mounted on the back face of each of the wide and narrow drum tiles and are symmetrically distributed at the left and right sides of the longitudinal centerline of each drum tile, the winding direction of the electromagnetic coils is the longitudinal direction of the drum tiles, the electromagnetic coils are wound on l-shaped magnetic cores, the winding direction of the electromagnetic coils is the longitudinal direction of the drum tiles, heat insulating layers cover the surfaces of the electromagnetic coils, the outermost layers of the electromagnetic coils serve as shells, and two l-shaped magnetic cores are symmetrically distributed at the left and right sides of each rib plate.

Description

technical field [0001] The invention relates to the field of tire production technology and equipment, in detail, it relates to a tire electromagnetic heating vulcanization device with segmental controllable heat source temperature. Background technique [0002] As we all know, the equipment structure of the tire vulcanization process has become stable after undergoing the technological change of replacing water tires with bladders. Although the vulcanization efficiency of bladder vulcanization has nearly doubled compared with the earlier water tire vulcanization efficiency, there are still some defects. On the one hand, the shoulder and bead parts of the tire have a thicker rubber layer, and when vulcanized, more heat is required to reach the vulcanization flat period than parts with thin rubber layers such as the crown and sidewalls. Therefore, ideal tire vulcanization conditions The temperature of the heat source corresponding to the shoulder and bead is high, while the ...

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Problems solved by technology

[0003] The purpose of the present invention is to address the deficiencies in the existing tire vulcanization process, and the present invention provides a tire electromagnetic heating vulcanization method and device with high thermal efficiency, low energy consumption, consistent heating of the upper and lower sidewalls of the green tire, and segmental controllable heat source temperature

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