A portable belt cutting device comprises a cutting head and a cutting blade movably arranged on the cutting head. The cutting head has a drive mechanism to move the blade from a retracted position to an extended position, such that the blade severs a belt. The drive mechanism is coupled to the blade such that the blade is actively driven in both directions between the retracted position and the extended position. In some embodiments, the drive mechanism comprises a drive spindle which engages a thread formed in the cutting head. The spindle is bi-directionally movable and comprises a torque input geometry. In another embodiment the drive spindle and blade comprise connecting elements that form a positive connection when engaged.

Provided are a cutting device and method. A blade receiving portion crossing a cord-embedded rubber sheet member is disposed in one surface side in a thickness direction of the rubber sheet member placed in a conveying mechanism. A cutting blade disposed in the other surface side is held by a holder that rotates about a turning shaft extending in the thickness direction of the rubber sheet member. In a state where a cutting-edge advancement direction turns about the turning shaft, a turning restoring force that restores the cutting-edge advancement direction to a preset moving direction is constantly applied by a turning restoring mechanism to the holder before cutting the rubber sheet member. The rubber sheet member is sandwiched in the thickness direction by the cutting blade and the blade receiving portion, and the cutting blade is moved in the extension direction of cords to cut between the cords.

The cutting system is configured to cut a continuous strip which extends lengthwise in a longitudinal direction and widthwise between a first edge and a second edge into strips. The cutting system includes a drive device which imparts to the continuous strip a feed speed, a first cutting roller and a contrarotating second cutting roller that cooperate to cut the continuous strip across its full width. The first cutting roller is provided with a first helical blade and is driven in rotation A variable synchronizer makes it possible to select and to modify the synchronization ratio between the rotational speed of the first cutting roller and the non-zero forward speed of the continuous strip in such a way as to be able to adjust the cutting angle according to which the cross-section of the continuous strip is oriented with respect to the longitudinal direction of the continuous strip.

The present application discloses a pad structure that includes a stretchable cuttable material with beveled edge.

Provided is a bale rubber holding device 54 of an embodiment which is provided in a feeding device 50 which feeds a bale rubber 20, which is a lump of rubber, forward toward a cutting position, where the bale rubber holding device 54 grips a rear portion of the bale rubber 20.

A method for cutting a bale rubber of an embodiment includes the steps of feeding the bale rubber to a cutting position and cutting out a bale rubber piece from the bale rubber which reaches the cutting position with a cutter and further includes the steps of measuring a weight of the cut-out bale rubber piece and determining a feed amount of the bale rubber in a subsequent step of feeding the bale rubber to the cutting position based on a difference between the measured weight of the bale rubber piece and a target weight of the bale rubber piece.

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.

A cutting device and a cutting method, comprising: a blade receiving portion crossing a cord-embedded rubber sheet member is disposed in one surface side in a thickness direction of the rubber sheet member placed in a conveying mechanism. A cutting blade disposed in the other surface side is held by a holder that rotates about a turning shaft extending in the thickness direction of the rubber sheet member. In a state in which a cutting-edge advancement direction turns about the turning shaft, a turning restoring force that restores the cutting-edge advancement direction to a preset moving direction is constantly applied by a turning restoring mechanism to the cutting blade before cutting the rubber sheet member. The rubber sheet member is sandwiched in the thickness direction by the cutting blade and the blade receiving portion, and the cutting blade is moved in the extension direction of cords.

A belt forming system may include an upstream conveyor, a downstream conveyor located downstream of the upstream conveyor, and a belt assembly system in communication with the upstream conveyor and the downstream conveyor. The belt assembly system may also include an arm, an actuator for moving the arm, and/or a holding component coupled to the arm and adapted to move a strip section from the upstream conveyor to a desired position on the downstream conveyor such that the strip section is oriented at a predetermined angle on the downstream conveyor. In one embodiment, the belt forming system comprises a belt cutter. The present disclosure also relates to a method for manufacturing at least a portion of a tire belt.

The present disclosure is directed to a process and an apparatus for cutting a continuous rubber-covered belt in a process for building tyres for vehicle wheels, wherein the apparatus comprises 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 comprises: 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.