摘要:
The present disclosure is in one aspect to a dispenser for rolled sheet materials. The dispenser includes a feed roller that is rotatably mounted to a housing of the dispenser housing, and that is configured to feed a predetermined amount of sheet material from the supply of sheet material through a discharge provided along the housing of the dispenser. The dispenser also has a feed roller drive assembly with a drive motor, and a belt transmission assembly. The belt transmission assembly has a drive belt coupled to the drive motor and to the feed roller such that rotation of the feed roller is driven by operation of the drive motor.
摘要:
According to one aspect, a web handling system comprises a plurality of cross-grooved idler rollers, an imaging drum, a nip roller adjacent the imaging drum and forming a nip therewith, and a spreader roller disposed between the plurality of idler rollers and the nip roller. Each idler roller is disposed no more than a first distance from an adjacent idler roller, spreader roller, and nip roller and the spreader roller is disposed no more than a second distance from the nip. The first distance is in a range of 38 to 28 inches, 36 to 30 inches, or 35 to 33 inches and the second distance is in a range of 6 to 11 inches, 6.5 to 9 inches, or 7.0 to 8.5 inches.
摘要:
The sheet conveyance apparatus includes first and second rollers, the second roller coming into contact with the first roller and thereby forming a nip portion, the second rotation axis being inclined with respect to the first rotation axis, wherein the second roller includes a first outer circumferential portion having a first outside diameter, a second outer circumferential portion arranged on one side of the first outer circumferential portion in an axial direction of the second rotation axis and having a second outside diameter larger than the first outside diameter, and a third outer circumferential portion arranged on the other side of the first outer circumferential portion, and wherein an outer circumferential surface of the first roller contacts with at least the first, second and third outer circumferential portions of the second roller, to form the nip portion.
摘要:
A method of printing comprising includes spreading and flattening a plastic film web before passing the plastic film web through a first printing unit; and spreading and flattening the plastic film web after the plastic film web exits the first printing unit and before passing the plastic film web through a second printing unit.
摘要:
An elastic body roller which has an excellent non-stick property or release property, and frictional force (gripping force) and is able to stably feed and guide a belt-shaped member such as a linerless label, a typical liner label, or the like is provided. Attention has been paid to coating an outer layer of an inner layer elastic material member having a silicone resin (a outer layer elastic material member) with a C hardness (hardness by a spring-type Asker C type defined in the SRIS 0101 standard) set low. An elastic material member of an elastic body roller has an inner layer elastic material member provided on the outer periphery of a roller shaft, and a outer layer elastic material member provided on the outer periphery of the inner layer elastic material member and being in contact with a belt-shaped member, and the outer layer elastic material member is formed from a silicone resin with a C hardness of 20 degrees or less.
摘要:
An arrangement (11) for driving a flat substrate along a longitudinal direction, the arrangement being mounted in a packaging production machine. The substrate has a surface that has sustained at least one modification. The arrangement includes a device (9) for driving the substrate along the longitudinal direction, and a device for bearing the substrate against the driving device (9), and having at least one bearing zone (23) facing toward the driving device (9). The substrate is engaged and driven between the driving device (9) and the bearing device. The bearing zone (23) has a transverse dimension (D) and position (Y), chosen as a function of a transverse dimension and a position of the modification on the substrate, so as to prevent damaging the modification between the driving device (9) and the bearing device.
摘要:
A printing press is provided. The printing press includes a first printing unit including a first plate cylinder, a first blanket cylinder and a first impression cylinder forming a first printing nip with the first blanket cylinder, a first bowed roller upstream of the first printing unit spreading a web before the web enters the first printing nip, a second printing unit downstream of the first printing unit including a second plate cylinder, a second blanket cylinder and a second impression cylinder forming a second printing nip with the second blanket cylinder, and a second bowed roller between the first printing and the second printing unit, the second bowed roller spreading the web before the web enters the second printing nip. A method printing is also provided.
摘要:
A roller for use in a coating machine comprises a metal core 1 having a dielectric cover 2. The cover is provided with an engraved pattern of ridges and grooves. The core is also provided with a pattern in register with the pattern in the cover such that an electrostatic field generated above a web supported on the roller may be made substantially uniform.
摘要:
The invention relates to a device for feeding sheets one by one from a stack of sheets to a transportation device. The sheet-feeding device comprises a number of parallel, separately driven shafts which are equidistantly spaced from one another and are enclosed in a first and a second low-pressure chamber and carry a plurality of feeding wheels which protrude through associated openings in the feeding table, which forms the top side of the respective low pressure chambers. A sheet support is arranged above one of the shafts in the first low-pressure chamber, and at least one sensor is arranged at the second low-pressure chamber. The sensor detects the front edge of the fed sheet and sends signals to a control unit for correcting, if necessary, the position of the sheet by controlling the motors associated with the shafts. The invention also relates to a method for feeding sheets.
摘要:
The invention concerns apparatus and method for printing onto lenticular material. Lenticular material has particularly onerous alignment requirements which, until now, has meant that it has not been possible to print upon such material on an automated home user basis. The apparatus and method of the present invention, utilise a feed cylinder 30 which incorporates grooves 311-31n which are dimensionally arranged to correspond with lens dimensions of a preferred lenticular material size. The feed cylinder 30, as it rotates about a central longitudinal axis 33, aligns and feeds input lenticular material into a printer to be printed upon. The cylinder 30 can also be used with other print media such as paper, transparencies etc, by providing the cylinder 30 with ridges 32 between the grooves 311-31n. With such conventional material, the ridges 32 grip the media as it is fed into the printer.