UNVULCANIZED ANNULAR RUBBER MEMBER MANUFACTURING APPARATUS AND METHOD

To provide unvulcanized annular rubber member manufacturing apparatus and method by which a front end part and a rear end part of a belt-like rubber member can be joined more reliably on an outer peripheral surface of a molding drum with no excess or deficiency over the entire width direction.SOLUTION: A front end part of a belt-like rubber member R, which is transported by a transport conveyor 2, is located on an outer peripheral surface 13a of a molding drum 13, the molding drum 13 is rotated to wind a prescribed length of the belt-like rubber member R on the outer peripheral surface 13a, a rear end part Rb thereof is held by plural rear end part holding parts 8 which are juxtaposed in a width direction, an amount of movement in a cross direction L of each move part 9a is controlled by a control part 12 with use of distribution data of the length of the belt-like rubber member R in the width direction, and an extension degree in the cross direction L around a portion to be held of the rear end part Rb, which is held by each rear end part holding part 8, is adjusted. Thereafter, the front end part Ra and the rear end part Rb are joined by a preset allowable joining margin S, thereby manufacturing an annular rubber member RC.SELECTED DRAWING: Figure 1 【課題】成形ドラムの外周面上で帯状ゴム部材の前端部と後端部を幅方向全体に渡り過不足なく、より確実に接合できる未加硫の環状ゴム部材の製造装置及び方法を提供する。【解決手段】搬送コンベヤ２によって搬送した帯状ゴム部材Ｒの前端部を成形ドラム１３の外周面１３ａ上に配置して、成形ドラム１３を回転させて帯状ゴム部材Ｒの所定長さを外周面１３ａ上に巻き付け、後端部Ｒｂを幅方向に並列された複数の後端部保持部８で保持して、帯状ゴム部材Ｒの幅方向での長さの分布データを用いて、制御部１２によりそれぞれの移動部９ａの前後方向Ｌの移動量を制御して、それぞれの後端部保持部８によって保持されている後端部Ｒｂの被保持部分周辺の前後方向Ｌの伸長程度を調整した後、前端部Ｒａと後端部Ｒｂとを、予め設定されている許容接合しろＳで接合して環状ゴム部材ＲＣを製造する。【選択図】図１