Conveyor belt and conveyor arrangement provided with such a belt, and method of producing such a belt

A conveyor arrangement comprising:

• a conveyor belt including at least one guide rim, wherein the guide rim extends in a longitudinal direction of the conveyor belt such that it enables guiding of the belt along a lateral guide surface provided on an outer periphery of a roll or the like by which the direction of the belt is changed and by which the belt is subjected to a predetermined bending, the guide rim including a contact surface that is in contact with the conveyor belt, wherein, in a position in which the belt is not subjected to any bending in the longitudinal direction thereof, as seen in a cross section, cross wise to the longitudinal direction of the guide rim, the guide rim presenting residual stresses including an induced tensile stress in opposite lateral regions of said contact surface and an induced compressive stress in a region between said lateral regions, said tensile stress generating a tensile force on the contact surface in a direction away from the conveyor belt and said compressive stress generating a compressive force on the contact surface towards the conveyor belt;
• and
• at least one roll supporting the conveyor belt and by which the belt is redirected and subjected to said predetermined bending, said roll having at least one lateral guide surface provided on an outer periphery thereof for the purpose of laterally supporting said guide rim, thereby enabling the guide rim to guide the belt along a predetermined path and at a predetermined position on the roll.

A method of producing a conveyor belt comprising:

• providing a at least one guide rim, wherein the guide rim extends in a longitudinal direction of the conveyor belt such that it enables guiding of the belt along a lateral guide surface provided on an outer periphery of a roll or the like by which the direction of the belt is changed and by which the belt is subjected to a predetermined bending, the guide rim including a contact surface that is in contact with the conveyor belt, wherein, in a position in which the belt is not subjected to any bending in the longitudinal direction thereof, as seen in a cross section, cross wise to the longitudinal direction of the guide rim, the guide rim presenting residual stresses including an induced tensile stress in opposite lateral regions of said contact surface and an induced compressive stress in a region between said lateral regions, said tensile stress generating a tensile force on the contact surface in a direction away from the conveyor belt and said compressive stress generating a compressive force on the contact surface towards the conveyor belt;
• bonding the contact surface of the guide rim to a peripheral surface of the belt by an adhesive provided between said contact surface and said peripheral surface, wherein the peripheral surface of the belt is generally flat and that the guide rim is provided with a convex base surface, as seen in a cross section cross wise to the longitudinal direction thereof;
• and
• pressing said base surface towards said peripheral surface and deforming the base surface to a generally flat state, thereby defining said contact surface of the guide rim.