| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 141 | Printing machine having reciprocating carriage carrying both cleaning and ink delivery devices | US09356621 | 1999-07-19 | US06401618B1 | 2002-06-11 | Wai Cheung; Edward H. Hutchinson |
| A rotary printing machine having a cylinder, two doctor blades acting on the cylinder, and a gravity fed ink dispensing mechanism and a drum cleaning spray system provided on a reciprocating carriage. Ink is applied in excess to one of the doctor blades and excess ink is removed by the other. One of the ink dispensing mechanisms can be removed and replaced while printing is taking place using ink from the other ink dispensing mechanism. | ||||||
| 142 | Cylinder impurity remover apparatus | US09729026 | 2000-12-04 | US20020066382A1 | 2002-06-06 | Phillip E. Jones |
| A removable, compact and easily accessible cylinder impurity remover apparatus has a wiping position for removing impurities from a rotatable printing plate cylinder on a printing press and a non-wiping position. The impurity remover removeably slides or swings into position for wiping a plate on the plate cylinder. Most preferably, a pressure source acts on two pistons to move two parallel reciprocably mounted shafts and a wiper blade mounted thereon to the wiping position. Both the pistons and shafts are preferably contained inside an actuator bar, which is mounted parallel to a printing plate cylinder. As the wiper blade moves forward to the wiping position, a bias member is compressed and remains compressed until the pressure source stops, allowing the bias member to automatically retract the reciprocably mounted shafts and wiper blade to a non-wiping position. According to one embodiment of the invention, the actuator bar is mounted on the top side of a primary support bar having a shaped track to permit a sliding movement into and out of the printing press. According to a second embodiment of the invention, the actuator bar is pivotally connected to a first main side support and the opposing end of the actuator bar is receivable in a docking portion of a second main side support for pivoting movement relative to the printing press. Both embodiments are compact and allow for the operator to easily access the wiper blade for maintenance and cleaning. | ||||||
| 143 | Apparatus and method for collecting residual material dispersed during imaging | US09472959 | 1999-12-27 | US06371026B1 | 2002-04-16 | Roni Ben-Zion; David Eshed; Yehuda Barnes Solomon |
| Disclosed are apparatus and methods for protecting an optical system from residual material that is scattered and dispersed during the imaging of printing plates and collecting same. The apparatus includes a housing with upper and lower chambers and surrounding at least a portion of the printing drum. The lower chamber is configured to be fitted to the optical system of the imager. A compressed air supply connects to the lower chamber and a suction device connects to the upper chamber for extracting the residual material. Air from the compressed air supply is moved through the lower chamber forming two air-streams, which are drawn into the upper chamber with the residual material of the imaging process. | ||||||
| 144 | Method and device for eliminating peeled-off surface portions of an ink-repellent layer of an offset printing plate | US84559 | 1998-05-26 | US6061867A | 2000-05-16 | Andreas Schorpp; Bernhard Mechler; Andreas Detmers |
| A method and a device for eliminating peeled-off surface portions of an ink-repellent layer of an offset printing plate. With known plate-cylinder washing devices such peeled-off surface portions of an ink-repellent layer cannot be eliminated from the offset printing plate completely. The method and device according to the present invention enables the complete elimination of said peeled-off surface portions. Using the surface of non-woven fabric mounted on a shaft in spiral-like manner, the ink-repellent layer is brushed off without any fluid added. The method and device are used in connection with the direct imaging of offset printing plates in the dry-offset process. | ||||||
| 145 | Offset printing device for a rotary printing machine | US880046 | 1997-06-20 | US6006664A | 1999-12-28 | Peter Hummel; Robert Ortner |
| An offset printing device is provided for a rotary printing machine having a plate cylinder carrying a dry flatbed printing plate, the printing device having an improved inking unit which reduces the occurrence and effect of contaminants. In the inking unit, at least one ink application roller, which is frictionally engaged against the plate cylinder during printing, is drivable by at least one positively driven inking roller at a peripheral speed which is different from the peripheral speed of the plate cylinder. In an embodiment, a plurality of ink application rollers contact the plate cylinder and are respectively driven at successively differing peripheral speeds. | ||||||
| 146 | Method and apparatus for cleaning flexographic printing plates | US659862 | 1996-06-07 | US5918545A | 1999-07-06 | Malcolm J. Pym |
| An apparatus and method for cleaning flexographic printing plates which are mounted on a printing cylinder of a flexographic printing press, whereby the printing plates are scrubbed to remove ink, foreign matter and residue resulting from the flexographic printing press, followed by a rinsing of the residue from the printing plates, with the centralized collection of such residue for proper disposal, and the drying of the printing plates by directing pressurized air onto the printing plate to remove excess moisture without the need to remove the printing plates from the printing cylinder. | ||||||
| 147 | Device for cleaning directly imaged printing forms in a printing press | US782096 | 1997-01-13 | US5826511A | 1998-10-27 | Dieter Schmitt |
| A device for cleaning silicone particles and other residues from directly imaged printing forms of a printing form cylinder in a printing press includes a cleaning element extending parallel to the axis of the printing form cylinder and movable substantially radially against the printing form cylinder, the cleaning element having a cleaning surface with which it is engageable with the printing form, the cleaning surface being formed with a fleece of fine microfibers of plastic material. | ||||||
| 148 | Method and device for washing a form cylinder and an associated applicator roller in a printing machine | US684154 | 1996-07-19 | US5740739A | 1998-04-21 | Manfred Herold; Georg Hartung; Ulrich Jung |
| A method and apparatus for washing printing press form cylinders and associated applicator rollers in a manner which reduces the drying of quick-drying media, such as varnish or ink, on the applicator roller and form cylinder. The washing device is disposed in a nip between the form cylinder and applicator roller and has two curved surfaces disposed in closely adjacent relation to respective surfaces of the form cylinder and applicator roller. Each curved surface has a spray device for directing a cleaning fluid onto the adjacent form cylinder and applicator roller and a suction-extraction device for removing sprayed cleaning fluid and removed ink and impurities. The method and apparatus may be selectively operated in a print-on mode in which a cleaning fluid is sprayed onto the rotating form cylinder and is suction-extracted from its outer surface. When printing is switched off, the method and apparatus may be operated in a print-off mode in which cleaning fluid is sprayed onto the rotating applicator roller and onto the rotating form cylinder, with the applicator roller is separated from the form cylinder. | ||||||
| 149 | Apparatus and system for removing dust from printing plate of printing press | US406888 | 1995-03-01 | US5680818A | 1997-10-28 | Yasuhiko Tomiki; Toshiyuki Ogiwara; Tadami Yoshimura; Kenichi Mizuno; Kunio Idogawa; Yoshihiro Nomura; Tadashi Suzuki |
| A printing-plate dust removing apparatus includes a guide rail 12 provided in parallel with a plate cylinder 1; a slider 13 moving along the guide rail 12; a holder 18 supported by the slider 13; a moving member 19 supported by the holder 18, the moving member 19 having a plurality of dust removing blades 28; and a driving gear for shifting the moving member 19 intermittently. A driving shaft 38 of the driving gear is connected with a driven shaft 27 through coupling members 41 and 42. Interlocking claws 41A and 42A of the coupling members are set so that the coupling members are engaged with each other at a standby position of the dust removing blades. Also, the holder 119 and the slider 113 are connected with each other by wedge members 138 and 144 so that the wedge members are firmly engaged with each other by a clamping bolt 147 and a holder plate 140. A printing-plate dust removing system 205 includes the above printing-plate dust removing apparatus and a controller 231, in which the controller compares a presumed position which is now in recognition and an actual position based on a signal c input from a detecting sensor 242 for detecting the position of the slider 206 so that both the positions are coincided with each other. The controller 309 shifts the moving member 208 (dust removing belt 210) only when a signal informing that the dust removing blade 211 is located at the standby position is inputted from a blade position detecting device 308, and then it shifts the slider 206. | ||||||
| 150 | Cleaning apparatus for offset plates | US433987 | 1995-05-04 | US5568768A | 1996-10-29 | David Wolfe; Samuel D. Zerillo |
| Cleaning apparatus for cleaning a lithographic plate mounted to a rotary plate cylinder comprises an endless belt having a segment extending close to and substantially parallel to the cylinder. Plate cleaning pads are mounted to the belt all along the belt and a motor advances the belt along the cylinder. When cleaning, a bladder is caused to inflate thereby pressing the belt segment and cleaning pads thereon against the plate mounted to the plate cylinder while the cylinder rotates. | ||||||
| 151 | Printing apparatus for continuous rotary printing, in particular suitable for high speed and intermittent printing | US320410 | 1994-10-03 | US5520109A | 1996-05-28 | Luciano Meschi |
| Improved apparatus for rotary printing of a strip of paper (1) or similar material, comprising a printing roller (2) provided with a cliche (3) brought into contact with a back pressure roller (4) and a screened roller (5) to quickly interrupt and resume the printing of the paper (1), said means comprising a support (20) to which the printing roller (2) is rotatingly connected and which is, in turn, rotatingly connected to a fixed pivot (21) eccentric with respect to the printing roller (2) and around which rotation occurs by means of an actuator (22). Washing means (15) are also provided for the cliche (3) and a mobile support (30) of the ink roller (6) which allows it to be distanced from the screened roller (5) so as to create a space (8) which promotes the formation of a film of ink on the screened roller (5) itself suitable to keep it damp and prevent drying. (FIG. 2 ) | ||||||
| 152 | Printing unit for a rotary offset printing press | US497856 | 1995-07-03 | US5511475A | 1996-04-30 | Wolfgang Pfizenmaier |
| Printing unit for a rotary offset printing press having a plate cylinder bearing a printing plate suitable for offset-printing operation free of dampening solution, and an inking unit with a multiplicity of inking rollers for inking the printing plate during operation with a printing ink suitable for offset-printing operation free of dampening solution includes an auxiliary roller bringable, independently of the inking rollers, into engagement with and out of engagement from the printing plate, the auxiliary roller, at least in a first operating position thereof wherein it is in engagement with the printing plate, being rotatable opposite to the direction of rotation of the plate cylinder at a circumferential speed different from the circumferential speed of the plate cylinder and, in a second operating position thereof wherein it is out of engagement with the printing plate, forming a component or constituent part of the inking unit. | ||||||
| 153 | Dampening system | US5870487 | 1987-06-05 | US4724764B1 | 1994-09-20 | MACPHEE JOHN; LESTER LARRY E |
| 154 | Ink removing device for a lithographic press and a method for removing ink from a lithographic press | US899603 | 1992-06-12 | US5277112A | 1994-01-11 | Hideo Ohta; Masahiko Miyoshi |
| A lithographic press includes a plate cylinder having an outer surface which includes a first outer section and a second outer section, and at least one printing plate disposed around one of the first and second outer sections in parallel to a rotational axis of the plate cylinder. The other of the first and second outer sections is uncovered and exposed to the ambient environment. The lithographic press also includes an ink supplying device which feeds ink to the at least one printing plate and the other of the first and second outer sections, and an ink removing device having a contact member which contacts the other of the first and second outer sections of the plate cylinder and removes ink therefrom. A method for removing ink from the other of the first and second outer sections includes removing the ink by way of contact between the ink removing device and the other of the first and second section of the outer surface of the plate cylinder. | ||||||
| 155 | Automatic cleaning apparatus for gravure plate cylinders | US802127 | 1991-12-03 | US5213040A | 1993-05-25 | Tomoyasu Mihori; Toshiya Saeki; Sadayoshi Naito; Masaichi Iiboshi; Hiroki Nakamura |
| An automatic cleaning apparatus for a gravure plate cylinder comprises a carriage having a spatula capable of contacting the outer cylindrical surface of a gravure plate cylinder and a solvent sprinkling pipe for sprinkling a cleaning solvent on the outer cylindrical surface of the gravure plate cylinder which is rotated about its axis during the cleaning operation. The carriage is moved in a direction parallel to the gravure plate cylinder by rotating a screw bar, and the spatula of the carriage is pressed against the gravure plate cylinder by a pressure shaft connected to an actuator. | ||||||
| 156 | Press dampening system | US580632 | 1990-09-11 | US5158017A | 1992-10-27 | Edward P. MacConnell; Robert King; Donald L. Frank |
| A dampening system has a pan for containing dampening fluid, and transfer and metering rollers for bringing dampening fluid up out of the pan. A transition roller contacts one of the transfer and metering rollers. The transition roller is movable between first and second position. In the first position, the transition is off of the plate cylinder and dampening fluid is applied to the plate cylinder by ink form rollers. In the second position, the transition roller is on the plate cylinder. Another version of the dampening system has a bridge roller between the transition roller and a ink form roller, which bridge roller is movable between the third and fourth positions. In the third position, the bridge roller is on the transition roller. In the fourth position, the bridge roller is off of the transition roller. The dampening system can dampen the plate cylinder without the use of alcohol. The transition roller is rotated by a separate motor so that its speed is controlled independently of the other rollers. When the transition roller is on the plate cylinder, it can be slowed down to clean hickeys off of the plate cylinder. When the plate cylinder is clean, it can be moved off of the plate cylinder or speeded up to the same speed as the plate cylinder. A controller is provided to automatically adjust the amount of dampening fluid being applied to the plate cylinder by regulating the speed of the transfer and metering rollers. | ||||||
| 157 | System for removing foreign matter from a plate cylinder of a printing press | US744276 | 1991-08-13 | US5138945A | 1992-08-18 | Sung C. Lee; James N. Crum |
| To rapidly and reliably remove foreign objects from rotating plate cylinders (10, 10'; 10a, 10a') of a printing machine, a carriage (12) is mounted on a keyboard (21) having keys associated with predetermined axial positions or zones on the plate cylinder, controls via a control unit (CU) rotation of the stepping motor to the respective axial zone which is selected by operation of one of the keys (20) of the keyboard. A solenoid then projects the wiper blade to remove a foreign object or hickey from the plate. In a multi-cylinder machine, the removal apparatus including the spindle, carriage, wiper blade and solenoid, is placed in association with each one of the cylinders, one keyboard and one control unit operating all the wiper blades in unison, thereby eliminating the need to determine on which one of the plate cylinders of, for example, a multi-color press, a foreign object has lodged. After removal of a foreign object, or a number of foreign objects, as counted by keyboard operation, the carriage is returned to a rest or cleaning position where a motor-operated brush, upon sensing the presence of the carriage, removes the objects from the blade. | ||||||
| 158 | Hickey roll and method of making same | US22097272 | 1972-01-26 | US3808657A | 1974-05-07 | MENGES L; WOLFF R |
| A cylindrical core having a covering of rubber impregnated with nylon fibers the rubber of which is vulcanized after securing it to the core and then said covering is ground leaving a substantial number of fiber ends protruding from the peripheral surface of the rubber.
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| 159 | Cleaning apparatus for offset printing machines | US3737940D | 1971-12-06 | US3737940A | 1973-06-12 | MOESTUE H; MOESTUE C |
| A roller-shaped cleaning tool for a rotating cylinder surface in an offset press is rotatably mounted in a housing that is open in front. The cleaning tool is presented to the cylinder surface through the opening in the housing. The cleaning tool produces an atmosphere of atomized cleaning liquid and washed-off dirt in the housing and this atmosphere is drawn off through an outlet which is connected to a source of sub-atmospheric pressure.
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| 160 | Method of cleaning printing surfaces after printing soft tissue paper | US3545381D | 1968-02-20 | US3545381A | 1970-12-08 | JORGENSEN JORGEN L |
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