摘要:
A web transport system for transporting a web of media along a web-transport path including a fluid bar for guiding the web of media, and a scavenger blade positioned downstream of the fluid bar. A liquid is pumped through holes in an exterior bearing surface of the fluid bar, thereby pushing the web of media away from the fluid bar. The scavenger bar includes a blade edge facing the first surface of the web of media, the blade edge being spaced apart from the first surface of the web of media by a gap distance. The scavenger blade removes at least some liquid from the first surface of the web of media as it passes by the scavenger blade, thereby reducing the amount of liquid that is carried along to portions of the web-transport path that are downstream of the scavenger blade.
摘要:
A plastic food bag includes a first plastic foil and a second plastic foil. The first foil and the second foil are disposed adjacent to one another and are continuously merged together at three edges to form the plastic food bag. The first foil contains a printable area. The printable area includes at least one of a cover layer and a middle layer that includes a thermosensitive material that changes color when heated, or, alternatively, a printing layer. The printable area is printable after the forming of the plastic food bag.
摘要:
A web transport system for transporting a web of media along a web-transport path includes a fluid bar for guiding the web of media, and first and second fluid shields positioned proximate to first and second ends of the fluid bar. A liquid is pumped through holes in an exterior bearing surface of the fluid bar into a region between the web of media and the bearing surface of the fluid bar, thereby pushing the web of media away from the fluid bar. The fluid shields are positioned to redirect fluid that is ejected from the region between the web of media and the bearing surface of the fluid bar along the edges of the web of media.
摘要:
A film treating method includes feeding a film from a film feeder, moving the film along an outer circumference of a fixed support unit, which supports the film and guides the movement of the film, applying tension to the film by moving a variable support unit from a first surface of the film toward a second surface of the film, processing the film, and collecting the film.
摘要:
A print media moving apparatus includes a transport member positioned immediately upstream relative to a roller. The transport member has an operative surface with an arcuate trailing surface, forming an air gap between the operative surface and the print media. An air clamp controls air flow in the air gap. The transport member includes three sections with the second section located between the first and third sections. The roller, having a diameter and rotational axis, includes three sections with the second section located between the first and third section and corresponding to the sections of the transport member. The diameter of the roller in the first and third sections is greater than in the second section. The transport member causes the print media, after leaving the transport member, to contact the first and third sections of the roller prior to contacting the second section of the roller.
摘要:
A method for moving print media includes providing a vacuum assembly having an arcuate profile to deflect the print media such that the print media has a non-linear profile in a direction perpendicular to a media travel path. A roller, having an axis of rotation and a diameter, and including three sections with the second section located between the first and third section as viewed along the rotational axis is provided. The diameter of the roller in the first and third sections is greater than in the second section. The roller is used to deflect the web of print media in a direction opposite to that of the deflection of the web of print media by the vacuum assembly, thereby spreading the web of print media in a cross-track direction to reduce the formation of wrinkles in the web of print media as it travels over the roller.
摘要:
A flexible and continuous substrates-conveying sheet has a plurality of to be processed substrates disposed on or in it. A nondestructive transferring unit includes a plurality of first transferring rolls and a plurality of second transferring rolls. The first transferring rolls make contact with a first surface of the substrates-conveying sheet where that surface can have electrostatically-induced charge formed thereon. Each of the first transferring rolls includes a first central portion charged with a positive electric charge and a first outer portion surrounding the first central portion. The second transferring rolls make contact with the first surface of the substrates-conveying sheet. The second transferring rolls are disposed alternately with the first transferring rolls. Each of the second transferring rolls includes a second central portion charged with a negative electric charge and a second outer portion surrounding the second central portion.
摘要:
A method of manufacturing a photovoltaic cell array of the type comprising a primary electrode array and a counter-electrode array together defining a series-connected sequence of cells, each containing electrolyte which is insulated from direct electrical contact with the electrolyte of neighbouring cells, the method comprising: (a) depositing electrolyte into the cells; and (b) sensing the level of electrolyte deposited.
摘要:
A synchronous control method and apparatus are disclosed for a web rotary printing press which comprises a first printing press, a second printing press, a drive motor for driving the second printing press, and a folder provided in the first printing press, and enables a web printed by the first printing press and a web printed by the second printing press to be superposed and folded by the folder. The synchronous control apparatus comprises a pattern phase deviation detecting sensor provided halfway through a transport path, on which the web printed by the second printing press is transferred so that the web is superposed on a web printed by the first printing press, and adapted to measure the position of a pattern printed by the second printing press, and a pattern phase deviation computing device and a central control device for controlling the rotation phase of the drive motor based on the position of the pattern printed by the second printing press, the position having been measured by the sensor.
摘要:
A punch roller bypass unit is disclosed. An illustrative embodiment of the punch roller bypass unit includes a unit frame having a pair of spaced-apart tracks, a first roller carried by the tracks and a second roller carried by the tracks in positionally adjustable relationship with respect to the first roller. A method of bypassing a paper web around a punch roller in a punching unit of a paper processing system is also disclosed.