To accurately cut a ply for a tire. It is a cutting device 1 for cutting a ply 10 for a tire in which a plurality of cords 12 parallelly arranged at fixed pitches are coated with an unvulcanized topping rubber 10. It has a pitch increasing means 2 for increasing the pitches of the cords 12 by pressing the ply 10 from a second surface 10b side to a first surface 10b side of the ply 10 so as to stretch the ply 10 toward the first surface 10a side; and a ply cutting means 3 disposed on the first surface 10a side of the ply 10, for cutting the stretched portion of the ply 10 along the cords 12.

The manipulator device includes a pedestal and a carrying mechanism which carries a platform and which forms an articulated triangle comprising: a first arm borne by a first carriage with a first pivot link whose axis forms a first vertex of the triangle, a second arm borne by a second carriage with a second pivot link whose axis forms a second vertex of the triangle, a seat situated at the intersection of the first arm and of the second arm, which forms a third pivot link whose axis is parallel to the first pivot axis and the second pivot axis and forms a third vertex of the triangle. A module is provided for servocontrolling the translational movements of the first carriage and the second carriage with respect to the pedestal. A yaw orientation interface comprises a fourth pivot link, by which the platform is articulated on the seat, both relative to the first arm and relative to the second arm, about a fourth pivot axis which is coaxial to the third pivot axis.

The manipulator device includes a pedestal and a carrying mechanism which carries a platform and which forms an articulated triangle comprising: a first arm borne by a first carriage with a first pivot link whose axis forms a first vertex of the triangle, a second arm borne by a second carriage with a second pivot link whose axis forms a second vertex of the triangle, a seat situated at the intersection of the first arm and of the second arm, which forms a third pivot link whose axis is parallel to the first pivot axis and the second pivot axis and forms a third vertex of the triangle. A module is provided for servocontrolling the translational movements of the first carriage and the second carriage with respect to the pedestal. A yaw orientation interface comprises a fourth pivot link, by which the platform is articulated on the seat, both relative to the first arm and relative to the second arm, about a fourth pivot axis which is coaxial to the third pivot axis.

(N+1) band-like cut members are manufactured by cutting a band-like member N times along the length direction of the reinforcing cords. At such time, cutting positions are set at locations in the width direction of the band-like member from a first end toward a second end, and cuts are made in the band-like member on the basis of the cutting positions. Setting the cutting positions includes: a step A in which cutting positions of the band-like member are set M times (where M is a natural number less than N) for every fixed first number of reinforcing cords; and a step B in which a second number of the reinforcing cords is set within an allowable number range, and the cutting positions are set at (NM) locations using the second number such that band-like cut members having the second number of reinforcing cords are continuously produced.

(N+1) band-like cut members are manufactured by cutting a band-like member N times along the length direction of the reinforcing cords. At such time, cutting positions are set at locations in the width direction of the band-like member from a first end toward a second end, and cuts are made in the band-like member on the basis of the cutting positions. Setting the cutting positions includes: a step A in which cutting positions of the band-like member are set M times (where M is a natural number less than N) for every fixed first number of reinforcing cords; and a step B in which a second number of the reinforcing cords is set within an allowable number range, and the cutting positions are set at (NM) locations using the second number such that band-like cut members having the second number of reinforcing cords are continuously produced.

The invention relates to a method for picking up and placing a tire components, wherein the method includes the steps of picking up a supplied first tire component with a transfer drum, rotating the transfer drum in a first direction for winding a predetermined length of the continuous length of the first tire component, rotating the transfer drum in the opposite second direction, while at the same time moving the transfer drum downstream into a cutting position, wherein a part of the predetermined length of the first tire component is unwound from the transfer drum, cutting the unwound part, thereby obtaining a cut-to-length first tire component, and rotating the transfer drum again in the first direction for winding up the unwound part of the cut-to-length first tire component up to the trailing end.

The invention relates to a method for picking up and placing a tire components, wherein the method includes the steps of picking up a supplied first tire component with a transfer drum, rotating the transfer drum in a first direction for winding a predetermined length of the continuous length of the first tire component, rotating the transfer drum in the opposite second direction, while at the same time moving the transfer drum downstream into a cutting position, wherein a part of the predetermined length of the first tire component is unwound from the transfer drum, cutting the unwound part, thereby obtaining a cut-to-length first tire component, and rotating the transfer drum again in the first direction for winding up the unwound part of the cut-to-length first tire component up to the trailing end.

A cutting device and a method are provided for cutting a tire component. The cutting device includes a counter member and a cutting disc that is movable in a cutting direction over a cutting stroke along said counter member for cutting the tire component in cooperation with said counter member. The cutting disc, at an end of the cutting stroke, is movable in a lifting direction from a cutting position at the counter member into a standby position away from the counter member. The cutting disc, in said standby position, is movable in a return direction opposite to the cutting direction over a return stroke. The cutting device further includes a braking member that is fixed in the lifting direction at the standby position for braking the rotation of the cutting disc when said cutting disc is in the standby position.

A cutting device and a method are provided for cutting a tire component. The cutting device includes a counter member and a cutting disc that is movable in a cutting direction over a cutting stroke along said counter member for cutting the tire component in cooperation with said counter member. The cutting disc, at an end of the cutting stroke, is movable in a lifting direction from a cutting position at the counter member into a standby position away from the counter member. The cutting disc, in said standby position, is movable in a return direction opposite to the cutting direction over a return stroke. The cutting device further includes a braking member that is fixed in the lifting direction at the standby position for braking the rotation of the cutting disc when said cutting disc is in the standby position.

The method includes the step of running a cutting means between two threads of the reinforcing ply. The method proceeds with the steps of measuring; a discrepancy between an actual cutting line (ABC) and a theoretical cutting line (ABC) is measured and determining a point of intersection of the actual cutting line (B) with a reference longitudinal line (XX) placed on the strip. The actual cutting line (BC) of that part of the rubber profiled elements that are not superposed with the reinforcing ply is longitudinally offset (Z) with respect to the theoretical cutting line (BC) so that the actual cutting line (BC) meets the reference longitudinal line (XX) at the point of intersection (B) of the reinforcing ply (AB) with the reference longitudinal line (XX). The rubber profiled elements that are not superposed with the reinforcing ply are cut along the said actual cutting line.