摘要:
Printing blankets having non-extensible backing plies such as, for example, metalback blankets, are provided which have a construction that is adapted to be mountable onto blanket cylinders having a gap containing a conventional single reel rod lock-up mechanism. The blankets include first and second relief areas positioned such that when the blankets are mounted onto a blanket cylinder, the relief areas substantially align with the point at which the lead and trail ends of the blankets are inserted into a gap in the blanket cylinder to secure the ends in the lock-up mechanism.
摘要:
The invention includes a grain separator with a seal system. The seal system includes an elastomeric portion and an inelastomeric portion. The seal system interfaces with an inlet spout at at least two locations. The seal system is rotatable about an inlet spout. A sealing pressure is increased as grain interacts with the seal system.
摘要:
A printing blanket is provided which may include a printable surface ply, a compressible ply, one or more reinforcing fabric plies, and a non-extensible backing layer comprising a polymeric material. The printing blanket has first and seconds ends which are adapted to be inserted into the gap of a printing blanket cylinder, where each of the first and second ends may include a relief area formed by removing or molding a portion of the blanket or by removing or molding a portion of the non-extensible backing layer such that the blanket may be mounted in a wide variety of printing presses using a number of different lock-up mechanisms.
摘要:
An intermediate sleeve is provided which is adapted to be mounted on a print cylinder. The intermediate sleeve includes a base layer, a reinforcing layer, a barrier layer, and a surface layer. The sleeve further includes at least one air channel extending longitudinally, circumferentially, or spirally along the interior of the sleeve, at least one air passageway extending from an inner surface of the sleeve into the air channel, and a plurality of orifices extending radially outward from the air channel to an outer surface of the sleeve. The air channel, air passageway, and orifices are in communication such that pressurized air can be supplied from the interior of the print cylinder to the outer surface of the sleeve for mounting a printing sleeve on the intermediate sleeve.
摘要:
An image transfer product such as an offset printing blanket or sleeve is provided which comprises a very thin printing surface layer in combination with a smooth image reinforcement layer comprising a polymeric film, a fabric, or a polymer-coated fabric. The thin printing surface layer has a thickness between about 0.001 to about 0.012 inches (about 0.025 to about 0.3 mm). The image transfer product is more efficiently manufactured due to reduced solvent usage and reduced number of coating passes, and in use, exhibits uniform feed, web control, and registration characteristics.
摘要:
A printing plate assembly for use in flexographic printing application is provided which includes an integral carrier layer, one or more cushion layers, and one or more photopolymer layers. The photopolymer layer(s) in the integral assembly are provided with relief images using digital imaging photopolymerization, which eliminates the need for a back exposure step and provides a precise relief depth for the plate.
摘要:
An endless belt for use in digital imaging systems is provided having edge to edge uniform flatness, and precise circumferential and edge to edge thickness. The layers comprising the belt may be tailored as desired for use in either image recording, image transfer or sheet transport operations. In one embodiment, the belt includes an elastomeric base layer, a reinforcing support layer, and an elastomeric surface ply. The belt is preferably manufactured by building the layers on a workpiece and then curing the layers.
摘要:
The invention provides for a seal assembly for a grain separator. The grain separator may include a housing, a rotatable grain separation cylinder within the housing, the cylinder having an end surface, a grain inlet having an inlet spout extending through the end surface for conveying grain into the cylinder in a feed zone, an auxiliary end piece or seal cone functionally connected to the end surface of the cylinder. The auxiliary end piece may have an annular external surface spaced laterally from the feed zone, and a seal interfacing with the annular external surface, thereby defining a seal zone spaced laterally from the feed zone. Such grain separators have increased capacity compared to separators with traditional seal assemblies.
摘要:
A composite packing material for use with a printing blanket is provided including a substrate such as fabric, scrim, or film which is coated on at least one surface with a polymeric compound to provide the desired gauge to the printing blanket assembly. The resulting composite packing material has a thickness of about 0.010 to about 0.067 inches (0.25 mm to 1.7 mm) and is substantially volume non-compressible.
摘要:
A composite packing material for use with a printing blanket is provided including a substrate such as fabric, scrim, or film which is coated on at least one surface with a polymeric compound to provide the desired gauge to the printing blanket assembly. The resulting composite packing material has a thickness of about 0.010 to about 0.067 inches (0.25 mm to 1.7 mm) and is substantially volume non-compressible.