Disclosed are a round knife, a cutting assembly, and a method for cutting tire components wherein the round knife includes a carrier that is rotatable about a rotation axis (X) and a plurality of first edge segments which are arranged to be mounted side-by-side in a circumferential direction (G) about the rotation axis (X) to the carrier to form a circular cutting edge (E) extending concentrically about the rotation axis (X), wherein the segment body is arranged to be spaced apart from the carrier in the radial direction (R) at the center between the first lateral side and the second lateral side.

A process and an apparatus for cutting a continuous rubber-covered belt in a process for building tyres for vehicle wheels, wherein the apparatus includes a cutting group, in turn comprising: a knife formed by a first half-part and a second half-part and movable along a cutting direction that is tilted with respect to a supply direction of a rubber-covered belt placed beneath the knife. The process includes: lifting a lifting element placed below the continuous rubber-covered belt and at the cutting zone, until a portion of rubber-covered belt is lifted, and lowering the single first-half part of the knife, making it slide with respect to the second half-part.

A front end feeding device 23 between a cutter 10 and a fixed-length feeding hand 30 that feeds a strip member 5 on an upstream side of the cutter 10 feeds a front end of the strip member 5 a short distance to a downstream side of the cutter 10, a front end grasping hand 60 on the downstream of the cutter 10 holds the front end of the strip member 5 fed the short distance, the fixed-length feeding hand 30 holds a part of the strip member 5 fed the short distance on the upstream side of the cutter 10, the front end grasping hand 60 and the fixed-length feeding hand 30 synchronously feed the strip member 5 a long distance to the downstream side, and the cutter 10 cuts the strip member 5 having been fed the long distance.

Disclosed is an apparatus and a method for converting a sheet into a continuous strip, wherein the sheet has a sequence of cuts extending in a cutting direction transversely across the sheet with respect to the longitudinal direction to form a plurality of interconnected sheet sections, wherein the continuous strip has zig-zag sections, wherein the sheet sections are arranged to be pulled apart in a feeding direction to form the zig-zag sections, wherein the apparatus includes a separator device with a retaining device for retaining an upstream sheet section with respect to a consecutive downstream sheet section in the feeding direction and a sensor device for detecting the pulling apart of the downstream sheet section from the upstream sheet section.

The present invention concerns a method of cutting a rubber web by means of ultrasound, in which a sonotrode comes into contact with the rubber web and the rubber web and the sonotrode are moved relative to each other while the sonotrode is excited with an ultrasonic vibration. To provide a method of the kind set forth in the opening part of this specification which allows reliable cutting of a rubber web and at the same time ensures that the wear of the tool and the converter is markedly reduced according to the invention it is proposed that a sonotrode comprising steel, preferably hardened steel, is used.

A strand of connected elastics is disclosed. The strand includes a series of elastic bands and a series of connecting portions that connect the series of elastic bands to each other. The connecting portions may have configurations that enable them to broken when separation and use of an elastic from an end of the strand is desired. Methods for manufacturing and using strands of connected elastics are also disclosed.

Disclosed is a tire building apparatus and a method for joining or cutting tire components. The tire building apparatus includes a rocking member that is movable in a rocking plane in a rocking motion along a rocking line, a translation guide extending parallel to the rocking line and a carriage that is displaceable along the translation guide, wherein the rocking member has a convex edge that defines a minor arc of a circle and extends up to a rotation center, wherein the rocking member is supported by the carriage at the rotation center and is angularly displaceable with respect to the carriage about a rotation axis extending through the rotation center.

Disclosed is a cutting device and a method for cutting a continuous strip into tire components. The cutting device includes a knife for cutting the continuous strip along a cutting line in a working plane and a feeding assembly with a feeding member for feeding the continuous strip in the working plane to the knife in a feeding direction that intersects with the cutting line at a cutting angle. The feeding member, and the knife are rotatable with respect to each other about a rotation axis perpendicular to the working plane for adjusting the cutting angle. The feeding assembly further includes an input member for receiving the continuous strip in an input direction into the cutting device and one or more guide members for guiding the continuous strip from the input member to the feeding member, wherein the input member is placed in line with or substantially in line with the rotation axis.

An automatic sampling system (100) and an automated sampling method take samples of a rubber strip after shaping and while scrolling in a predetermined direction.

Disclosed is a tire building apparatus and a method for joining or cutting tire components. The tire building apparatus includes a rocking member that is movable in a rocking plane in a rocking motion along a rocking line, a translation guide extending parallel to the rocking line and a carriage that is displaceable along the translation guide, wherein the rocking member has a convex edge that defines a minor arc of a circle and extends up to a rotation center, wherein the rocking member is supported by the carriage at the rotation center and is angularly displaceable with respect to the carriage about a rotation axis extending through the rotation center.