A sheet material (1) consisting of an mixture consisting essentially of: a) 10-50 percent by weight of random-oriented fibres, and; b) 90-50 percent by weight of a thermoplastic or thermoplastic elastomer; the weight percentages being based on the overall homogeneous mixture; and the sheet material having at room temperature a Shore D hardness of 40 to 85, preferably of 40 to 60, more preferably of 45 to 55. The sheet material (1) is used as a support in punching applications or as the top layer in punching belts (2).

A rotary cutter comprises a die cut roll having a cutting blade, and an anvil roll positioned so that a roll surface faces the cutting blade. The roll surface of the anvil roll is made of a hard material including at least either cemented carbide or cermet. The Young's modulus of the hard material is between 300 GPa and 400 GPa. The Vickers hardness (Hv) of the hard material is 800 or more.

A protective cover includes a padding layer and at least one backing layer comprising a network of fiber-reinforced plastic (FRP) threads, wherein a surface of the at least one backing layer is substantially rectangular comprising a first side, and wherein a plurality of the FRP threads are arranged along a direction that is oblique relative to the first side.

The invention relates to a method for operating a punching/transferring device (1), in particular for producing RFID antennas. The punching/transfer device (1) has a punching tool (2) with a vacuum connection (3), said vacuum connection (3) interacting with a porous elastomer (9) such that by means of the punching tool (2), a desired contour can be punched out of a multilayer composite, held, and then dispensed by modifying the shape of the porous elastomer (9) and/or by modifying the vacuum.

A cylindrical sleeve for attaching to a cylindrical platform of a die cutting machine, the cylindrical sleeve including a first elastic member and a second elastic member substantially identical to the first elastic member, each of the first elastic member or the second elastic member comprising an inner surface, an outer surface opposite to the inner surface, a first abutting surface, a second abutting surface opposite to the first abutting surface, a first end surface, and a second end surface opposite to the first end surface, wherein the first abutting surface and the second abutting surface are planar surfaces, wherein the cylindrical sleeve is formed by aligning the first abutting surface of the first elastic member to the second abutting surface of the second elastic member, and aligning the second abutting surface of the first elastic member to the first abutting surface of the second elastic member, and wherein an inner surface of the cylindrical sleeve formed by the inner surfaces of the first and second elastic members encompasses a cylindrical hollow space having an axis inclined relative to at least one of the first abutting surface or the second abutting surface of the first elastic member.

The present invention can simplify the work for forming a punching die, enables stable support of blade members, enables improvement of punching accuracy, and enables enhancement of durability. A plurality of wood molded boards are formed by performing a thermo-pressure process on wood chips at a predetermined temperature and under a predetermined pressure. A die substrate is formed by stacking the molded boards and bonding them together by means of adhesive. Blade members are press-fitted into grooves formed in the die substrate by means of laser machining such that the groove penetrates through the die substrate. The densities of near-surface regions composed of regions located near opposite surfaces of the die substrate and a density of a central region composed of regions located adjacent to each other with the adhesive intervening therebetween are higher than the densities of intermediate regions located between the near-surface regions and the central region.

The invention relates to a method for manufacturing parts of acetate eyeglass frames from an acetate plate. The plate is designed with length and height dimensions defining a surface area that encompasses the perimeter boundary of the body of the frame part to be manufactured, and with a thickness the value of which is at least equal to the maximum transverse dimensions of the three-dimensional shape of the body of the frame part itself and extends evenly over the entire surface defined by the length and the height of the plate. The method also comprises the step of forming a cut within the surface dimensions of the plate along the perimeter boundary of the body of the eyeglass part to be manufactured, excepting a pair of portions of said boundary, thereby leaving said portions connected to the plate, and the step of forming the three-dimensional shape of the frame part body by removing material from the thickness of the plate. The same method also comprises the step of forming the lens seats, the grooves for receiving lenses within their seats, a nose bridge, bridge arms, and the endpieces for connection to the temples. The invention further relates to an apparatus for carrying out the process and an eyeglass frame so manufactured.

Cutting tool for flat materials. The cutting tools includes a band-shaped base body which has on one longitudinal side a working region with cutting teeth and on an other longitudinal side a supporting region with a supporting surface. The cutting teeth are formed with tips and include cutting sides emanating from the tips at an angle a to one another. In a longitudinal direction of the working region, the tips of adjacent cutting teeth have different distances to the supporting surface.

A stamping tool formed from a steel strip and method of forming the stamping tool. The stamping tool is formed from a steel strip shaped on a narrow side with a cutting part having a cutting edge. The stamping tool includes a back part with a contour in cross section on a narrow side of the steel strip, recesses shaped in the back part with free spreading of the material to be transverse to a longitudinal extension of the steel strip and perpendicular to lateral surfaces of the steel strip, such that an extent of the spreading is smaller than a thickness of the steel strip, and undeformed regions located between the recesses.

A needle array suitable for perforating a fibrous preform includes a backplate, a plurality of needles removably attached to and extending away from the backplate, and a collar disposed around each of the plurality of needles. Each of the plurality of needles includes a metallic body, and a polymer sheath covering the metallic body.