A high-moisture-permeability, microporous plastic film randomly having a lot of recesses having different opening diameters and depths, with clefts formed in the recesses, is produced by pressing a first pattern roll randomly having a lot of high-hardness, fine particles having sharp edges on a roll body surface to a flat-surface metal roll, to produce an anvil roll randomly having a lot of recesses on a metal roll surface; arranging a second pattern roll randomly having a lot of high-hardness, fine particles having sharp edges on a roll body surface oppositely to the anvil roll; and passing a plastic film through a gap between the second pattern roll and the anvil roll.

The present disclosure relates to adjusting and maintaining a position of a cutting surface used to create lines of weakness for rolled products. A perforating apparatus includes a housing rotatably supported by a frame, wherein the housing is adapted to rotate about a first axis. A support member including a first cutting surface is rotatably supported by the housing, wherein the support member is adapted to rotate about a second axis offset from the first axis. A roll including a second cutting surface is positioned adjacent the support member, wherein the roll is adapted to rotate about a third axis. The second cutting surface is adapted to contact the first cutting surface as the roll rotates about the third axis. The perforating apparatus is configured such that the functions of adjusting the position of the first cutting surface and holding the first cutting surface in a fixed position are separate.

Methods and apparatus to align applique cutters are disclosed. A disclosed example alignment rail is for use with cutting an applique relative to a surface of a vehicle. The example alignment rail includes a base to contact the surface. The example alignment rail also includes a body including a cross-sectional profile extending along a longitudinal axis of the alignment rail. The example alignment rail also includes a groove of the cross-sectional profile extending along the longitudinal axis, where the groove is to align movement of a cutting tool to cut the applique.

A manual craft cutting machine comprises a housing, a template, a press roller, a retainer, a backing plate, and a drive mechanism. The press roller is composed of a first press roller and a second press roller. The press roller is rotated under restriction of the retainer. The retainer comprises a positioning retainer and a sliding retainer. The positioning retainer is provided with a slide groove. The sliding retainer is inserted in the slide groove and movable along the slide groove. The sliding retainer comprises a first sliding retainer rotatably connected with the first press roller and a second sliding retainer rotatably connected with the second press roller. The manual craft cutting machine further comprises a press roller spacing adjustment mechanism. The press roller spacing adjustment mechanism comprises a shift adjusting mechanism for adjusting a large spacing between the press rollers and a fine adjustment mechanism for adjusting a fine spacing between the press rollers. The shift adjustment mechanism drives the first sliding retainer to move along the slide groove, and the fine adjustment mechanism drives the second sliding retainer to move along the slide groove, so that the spacing between the press rollers can be quickly and largely adjusted according to the needs, and a fine spacing adjustment can be achieved according to the needs.

A cutter assembly includes a rotatable cutting head carrying outwardly extending cutter blades, as well as a rotatable drive hub and interconnected spring housing. The drive hub has a bearing housing, whereas spring housing includes coil spring. The spring housing is operably coupled with the cutting head, in a manner such that the spring exerts an unrestrained force against the cutting head and blades so that there is unrestrained movement of these components toward the outlet face of an extruder die plate. Consequently, there is a substantially constant self-adjusting force exerted on the cutter and blades against the plate, which promotes cleaner cutting of extrudate, even in the event that there is a degree of misalignment between the cutting edges and the outer surface of die plate. This arrangement lengthens the service life of the blades and the die plate.

The device includes a hollow cutting roller with a blade attached to the outer surface of the hollow roller. A stationary shaft is also provided, arranged inside the hollow roller and coaxial therewith. The stationary shaft is connected to a supporting structure and the hollow roller is rotatably supported onto the stationary shaft. A motor drive is provided to rotate the hollow roller around the stationary shaft. The hollow roller is supported onto the stationary shaft by at least a hydrostatic bearing arranged in an intermediate position between the ends of the stationary shaft.

An apparatus for producing a microporous plastic film comprising a pair of vertical columns; a pair of stationary frames each fixed to each vertical column such that they are positioned inside the vertical columns; a pair of movable frames rotatable under the stationary frames; a pattern roll rotatably supported by the stationary frames at a fixed position; an anvil roll movable up and down along first vertical guide rails of the stationary frames; and a lower backup roll movable up and down along second vertical guide rails of the movable frames; the pattern roll being in parallel with the anvil roll; the first and second vertical guide rails being distant from the vertical columns on one side, such that rotating movable frames and lower backup roll do not come into contact with the vertical columns; with the lower backup roll inclined to the anvil roll in a horizontal plane, large numbers of fine pores being formed on the plastic film by the high-hardness, fine particles of the pattern roll.

The invention relates to an adjusting device for adjusting the gap width between a punch and counter pressure cylinder of a rotary punch device, comprising an eccentric by means of which the position of a running ring of the counter-pressure cylinder can be adjusted relative to the counter pressure cylinder, and a servomotor which is designed to adjust the gap width between the punch and counter press cylinder. A control device for controlling the servomotor in which an adjusting curve taking into account the eccentricity of the eccentric, is provided. The invention also relates to an associated rotary punch device and to a method for receiving an adjusting curve of an adjusting device and to a method for adjusting a gap width between a punch cylinder and a counter pressure cylinder of a rotary punch machine comprising an adjusting device with an eccentric.

A rotary die cutting system comprising: a rotary die cutter (21) having a die cutting cylinder (22) that can rotate about a die cutting axis; a counter-pressure cylinder (23) that can rotate about a counter-pressure cylinder axis; and an adjusting mechanism, by means of which a gap width between the die cutting cylinder and the counter-pressure cylinder (22, 23) can be adjusted; and a die cutting sheet (25) that can be fixed to the die cutting cylinder (22). A machine-readable information carrier (26) is associated with the die cutting sheet (25), more particularly the die cutting sheet (25) has said information carrier, by means of which carrier at least the die cutting sheet (25) can be identified, and the rotary die cutting system has a detection unit (27) designed to read out the information carrier (26). The adjusting mechanism has a servomotor and a control unit (28) and is designed to adjust the gap width according to the die cutting sheet (25). Also disclosed is a method for adjusting the gap width.

The disclosure is related to a rotary cutting apparatus (10) comprising a frame (12); a first rotary device (14 or 16) comprising a first shaft concentrically arranged about a first rotational axis (A or B) and a first drum (37 or 38); a second rotary device (14 or 16) comprising a second shaft concentrically arranged about a second rotational axis (A or B) and a second drum (37 or 38); said first and second rotational axes being substantially horizontal and substantially in the same plane, wherein, a monitoring unit (28) is at least partially embedded in at least one of the drums of the first and second rotary devices, the monitoring unit being configured for measuring at least one working parameter and for transmitting data representative of the at least one working parameter between the monitoring unit and an interface transmission unit positioned outside either the first or second rotary device or both.