Device for bonding rubber strip

A device for bonding an unvulcanized rubber strip, the device comprising:

• winding support body that has a nonlinear cylinder-like shape such that it has a changing diameter along its axis of rotation, and
• an applicator to transport the unvulcanized rubber strip to the winding support body and to bond the unvulcanized rubber strip around the winding support body,
• wherein the applicator comprises a transporting conveyor having a transporting belt which is guided by a plurality of guiding rollers and transports the unvulcanized rubber strip on a transporting surface;
• wherein the transporting surface is defined as a straight-line segment of the transporting conveyor that is in contact with the unvulcanized rubber strip at any given instant;
• wherein the guiding rollers are distributed into forward-side guiding rollers including a foremost-side guiding roller disposed on the foremost side in a direction of movement of the transporting surface and backward-side guiding rollers including a backmost-side guiding roller disposed on a backmost side in the direction of movement of the transporting surface, and the forward-side guiding rollers are held tiltably around the transporting surface width centerline, so that the transporting surface forms a twistable twisting transporting surface portion between a forward-side transporting surface portion supported by the forward-side guiding rollers and a backward-side transporting surface portion supported by the backward-side guiding rollers;
• wherein the applicator further comprises a pressing conveyor having a pressing belt which is guided by a plurality of upper guiding rollers and presses the unvulcanized rubber strip to the transporting belt;
• wherein the pressing belt comprises a pressing surface comprising:
• a frontward-side pressing surface portion to press the unvulcanized rubber strip against the forward-side transporting surface portion,
• a backward-side pressing surface portion to press the unvulcanized rubber strip against the backward-side transporting surface portion, and
• a twisting pressing surface portion to press the unvulcanized rubber strip against the twisting transporting surface portion;
• and
• wherein the applicator comprises a support shaft for changing a tilting angle of the forward-side transporting surface portion around the transporting surface width centerline while transporting the rubber strip.