摘要:
A removable flexible jacket for use in a printing press having a transfer cylinder for transferring a freshly printed substrate comprises a sheet of woven fabric, a beaded film sheet coupled to the sheet of woven fabric, and an image disposed between the sheet of woven fabric and the beaded film sheet. The image is visible through the beaded film sheet, and wherein the image divides at least a portion of a surface of the beaded film sheet into a plurality of zones.
摘要:
A coating unit is located after a sheet-fed digital printer on a manufacturing line. As a response to a workpiece entering the coating unit from the printer, coating substance is dosed onto a plate cylinder, and said plate cylinder is rotated to transfer said coating substance onto the workpiece, which is then transferred further on the manufacturing line. As a response to a first time limit expiring after transferring the workpiece further without a subsequent workpiece entering the coating unit, the rotation of the plate cylinder is stopped.
摘要:
A removable flexible jacket for use in a printing press having a transfer cylinder for transferring a freshly printed substrate comprises a sheet of woven fabric, a beaded film sheet coupled to the sheet of woven fabric, and an image disposed between the sheet of woven fabric and the beaded film sheet. The image is visible through the beaded film sheet, and wherein the image divides at least a portion of a surface of the beaded film sheet into a plurality of zones.
摘要:
A novel apparatus and method of a take-up shaft used in the cleaning of a cylinder of a printing press. The take-up shaft includes features that allow the securing of a cleaning fabric from a supply roll without the need to physically fix or mount the fabric to the supply roll with screws or other fasteners that could cause the fabric to tear.
摘要:
According to the invention, there is provided a cylinder cleaning device for use with a cleaning fabric supply roll having a cleaning fabric wound thereon. The cleaning fabric is supplied from the supply roll and pressed against the outer surface of a cylinder to clean the outer surface of the cylinder. The device comprises frame means and roll receiving means mounted on the frame means. The outer surface of the supply roll is engaged with and received by the receiving means. The device further comprises roll stabilizing means for stabilizing the supply roll on the receiving means when the supply roll is rotated on the receiving means to supply the cleaning fabric and have a diameter correspondingly decreasing.
摘要:
An inking arrangement for printing presses comprises an ink fountain member having at least one fountain-forming face for forming an ink fountain, an ink fountain roller defining an ink channel together with the fountain member and having an outer peripheral surface to be inked through the channel, a plurality of rollers for supplying the ink applied to the peripheral surface of the fountain roller to a printing portion, and a cleaning tank disposed below the fountain member. The cleaning tank is provided with a cleaning blade at least alternatively shiftable to a cleaning position in which the blade is pressed against the peripheral surface of the fountain roller, or to a stand-by position in which the blade is away from the fountain roller. The ink applied to the peripheral surface of the fountain roller through the channel is scraped off by the blade in the cleaning position and collected in the tank.
摘要:
A cylinder cleaning apparatus for a printing press includes a cleaning cloth, a plate, and a cylinder and a rod. The cleaning cloth is brought into contact with the circumferential surface of a blanket cylinder to wipe a foreign matter on the circumferential surface of the blanket cylinder. The plate is arranged to oppose the circumferential surface of the blanket cylinder through the cleaning cloth, is deformed in accordance with a radius of curvature of the circumferential surface of the blanket cylinder, and has a reaction force against the circumferential surface of the blanket cylinder. The cylinder and the rod press the plate against the circumferential surface of the blanket cylinder, thereby bringing the cleaning cloth into contact with the circumferential surface of the blanket cylinder at a predetermined contact pressure.
摘要:
A printing apparatus is described, comprising: at least one pad comprising a cavity and a printing surface, a printing device adapted to form at least one image portion on the printing surface of the least one pad, pad moving means adapted to orient the pad in a first working position in which said image portion is formed in said printing surface of the pad by means of said printing device and in a second working position, different from the first working position, in which said image portion is imprinted on the object to be decorated by pressing the pad onto the object, further means adapted to act on the cavity of the pad to determine a flat shape of the printing surface of the entire pad in the first working position and a substantially convex shape of the printing surface of the entire pad in the second working position.
摘要:
Apparatus for cleaning a curved surface by employing the cloth principle, the apparatus having a roll for unsoiled cloth with unused cleaning cloth thereon, a roll for soiled cloth for taking up used soiled cloth, a pressing element for pulling unsoiled cleaning cloth off the roll for unoiled cloth and to bring it in contact with a surface to be cleaned by a movement of the element toward the surface, and means for pulling cleaning cloth off the roll for unsoiled cloth and for rolling soiled cloth up on the roll for soiled cloth by rolling up a part of the cleaning cloth that is longer or equal to the part thereof that is removed by the pressing element from the roll for unsoiled cloth independently of the respective diameters of the rolls for soiled and unsoiled cloth.
摘要:
A method for removing a cleaning device from a printing machine and for inserting the cleaning device or another cleaning device into the printing machine, the inserted cleaning device being secured in position in the printing machine by a fixing device, includes opening a protective covering of the printing machine and automatically inactivating the fixing device by the opening of the protective covering, removing the cleaning device from the printing machine through an opening in the printing machine exposed by the protective covering, inserting the respective cleaning device into the printing machine, and closing the protective covering and automatically activating the cleaning device by the closing of the protective covering, so that the inserted cleaning device is secured in the inserted position thereof; and a printing machine for performing the method.