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Patent Searching and Data


Matches 201 - 250 out of 3,730

Document Document Title
WO/1997/003831A1
The invention pertains to a sheet-feed offset rotary printing machine and a rotary sheet-feed machine for multicolour printing. The invention addresses the problem of designing a sheet-feed offset rotary printing machine and a rotary she...  
WO/1997/002143A2
The object of the invention is to avoid registration problems in a high quality sheet-fed, offset rotary press for colour printing with a minimum size. For that purpose, the rotary press has two printing and blanket cylinders with at lea...  
WO/1995/023755A2
In a device for the suspended guidance of sheets or webs, the purpose is to guide the sheets or webs contactlessly, without flutter and stretched towards the free edges through a processing machine, especially a rotary press. According t...  
WO/1995/023701A1
The aim in a device for guiding sheets is to provide a second mode of operation which considerably reduces the power requirement. This is achieved by the invention by the changeover of an air supply chest (3) with slotted nozzles (4) in ...  
WO/1995/023700A1
A gripper bar (48) conveyor mechanism for transferring sheets (22) to be printed from one rotating impression cylinder (18) to another in a multiple color rotary offset printer (10). The mechanism includes a transferrable gripper bar (48...  
WO/1995/023754A1
The aim in a blower chamber for the floating conveyance of sheets (3) or webs is to guide the sheets or webs through a processing machine, especially a rotary press, contactlessly, without flutter and tensioned towards the free edges. Th...  
WO/1995/009796A1
The invention relates to a process and a device for forming stacks of printed documents or similar sheets (9). The sheets (9) are either advanced individually or separated from a printed web (2) by tearing or cutting and pushed over one ...  
WO/1995/001930A1
Prior art devices for transporting and depositing sheets in a delivery region of a rotary press conceal a considerable hazard for a machine operator in that grab bridges carried by rotating conveyor chains to carry sheets are moved over ...  
WO/1994/026519A2
A printing machine has a series of printing units (12-22) each provided with a mast (80) to support the corresponding flexographic printing plate via movable device (82) so that the lower end of the plate can be fixed to the roll (60), t...  
WO/1994/009986A1
A device for aligning the front edge of a sheet of paper in paper sheet processing machines, in particular paper printing machines, has front edge stops (10) mounted so as to swivel around a first axis, means for cyclically swivelling th...  
WO/1994/002399A1
A paper sheet guiding cylinder for a printing machine is mounted in the machine side frames, is drivingly linked to the printing machine drive, and has an outer casing provided with through holes. Means are provided for blowing air into ...  
WO/1994/000299A1
A gripper bar conveyor mechanism (34) for transferring sheets to be printed from one rotating impression cylinder (18) to another in a multiple color rotary offset printer of the type having sets of impression cylinders and corresponding...  
WO/1993/003990A1
A special eye must be kept on the laying of the sheet on the delivery stack, especially in the range of high machine speeds. The purpose of the present invention is to propose a device for controlling and/or regulating the setting elemen...  
WO/1991/016254A1
A sheet feeding device for feeding paper sheets mounted on a hopper by a suction conveyor provided on the lower part of the hopper to the printing machine one by one, which device is provided with a motor for driving the suction conveyor...  
WO/1991/008109A1
In order to produce impressions on multilayer products in the offset printing process, the printing mechanism of a rotary sheet offset printing machine takes the form of an impression device in which at least one printing mechanism is an...  
WO/1990/013426A1
A delivery apparatus (11) which minimizes marring of wet ink is provided with an arcuate main wall (55) and a gap (117) forming leading and trailing edges (109, 79). The leading edge (109) can be positioned, either temporarily for adjust...  
WO/1990/012688A1
The invention refers to an arrangement for an adjustable sheet turning equipment in a sheet offset press of unit type for the printing of both sides of a sheet (1) and which includes only one transfer cylinder (2) between the printing un...  
WO/1988/003478A1
A flatbed press having a bed (4) which includes an ink roller (7) and a blanket (5) and which is moved on a press body frame (1) provided with an ink arrangement (3) at at least one end thereof, characterized in that said frame (1) is pr...  
WO/1982/003599A1
A process color offset duplicator (40) uses a plurality of duplicator heads (42, 44, 46, 48) arranged serially to print full process color. The duplicator heads (42, 44, 46, 48) are adapted to apply a thin layer of ink (90) onto plates (...  
WO/1982/000975A1
An automatic sheet register control system for a printing press comprising: photocells (81-85) sensing the position of a sheet (5) relative to printing cylinder (48U); and a computer (86-89) to generate signals to actuators (75a, 75b) to...  
WO/1982/000976A1
Synchronizing system for sheet feeding conveyor in printing presses provides compensation for variations in size of conveyor drive wheel. A planetary synchronizing system in which the length of an endless elastic conveyor (16) is adjuste...  
WO/1981/000827A1
A clamp (11) for holding a flexible sheet (12) on a rotary carrier (10) tightens the grip on, and pulls, the sheet upon rotation of the carrier, as a result of centrifugal forces generated on two weights (28, 29) attached to two cooperat...  
JP2024013368A
The present invention proposes a sheet processing device having a simpler and more compact configuration than conventional ones. [Solution] A processing unit capable of processing one side of a sheet S1, and a printing cylinder 33 that c...  
JP2023174071A
An object of the present invention is to provide a printing device that can easily increase the speed of reversing a sheet and does not cause printing failures during reversal. [Solution] A processing device 23 that performs processing i...  
JP2023174072A
An object of the present invention is to provide a printing apparatus that can perform pre-printing processing on a sheet whose front and back sides have been reversed. [Solution] A processing device 27 that performs processing including...  
JP7373464B2
A vacuum suction wheel that can stably discharge sheets in the discharge unit of a sheet-fed printer is provided. This vacuum suction wheel is provided with a suction inner tube the axial direction of which is perpendicular to the dire...  
JP7346769B2
In some examples, a transport cylinder for transporting a sheet-format substrate includes at least one channel extending on an outer surface of the transport cylinder in an axial direction. Each channel includes at least one gripper, whi...  
JP2023086435A
To provide a paper discharge device which can prevent drooping of print paper in a delivery area.A paper discharge device includes: paper discharging means 75 which discharges print paper S with printing performed thereon in a stacking m...  
JP7287914B2
A machine arrangement, for sequentially processing sheet-type substrates, includes a plurality of different processing stations, one of which includes a non-impact printing device that prints the substrates. The processing station, inclu...  
JP2023049183A
To provide an off-set printer for reverse printing of a photograph sheet which can perform printing on the rear surface of the photograph sheet without damaging a glossy surface of the photograph sheet.An offset printer for reverse print...  
JP2022190982A
To provide a paper discharge device of a printer that can prevent sheets of paper on a lowered pallet from shifting to the rear side.The paper discharge device of a printer includes a shutter device with a shutter member 9 that lowers a ...  
JP7192160B1
A further apparatus for aligning sheets transported on a feed table is provided. A device for aligning a sheet (B) conveyed on a feed table (4) has a pull rail (10). This tensioning rail (10) is adjustable for different sheet widths of s...  
JP2022174505A
To provide a printer capable of accurately detecting a front edge of a sheet.There is provided a printer, including: a sheet feeding unit 2; a registration unit 3 for aligning a front edge of a sheet of paper fed and conveyed from the sh...  
JP7118786B2
To provide a printer that automates a work of at least one of a paper feeding part and a printing part to allow an operator to concentrate on a work at a paper discharge part.A printer includes: a printing part 5 for printing on an objec...  
JP7082169B2
There is described a sheet-fed printing press (1000; 1000*) adapted to carry out recto-verso printing of individual sheets (S), in particular for the production of security documents such as banknotes, comprising one or more printing uni...  
JP7072211B2
To provide a corrugated fiberboard sheet feeding device capable of matching a working position by means of a printer and a die cutter to a desirable position with respect to both of two sheets of corrugated fiberboard sheets fed out duri...  
JP7016483B2
To stably convey a sheet material.A conveyance drum 21 is provided with first holding means 51, and the first holding means 51 contains a first claw part 61 for holding the tip end part of a sheet material P and a first claw stand 62. A ...  
JP3233320U
To provide a scrap removing mechanism for a printed product. An upper die pressing drive device 2 drives an upper die mounting ejector pin plate 3 and an upper pressing weight plate 4 so as to be displaced vertically, and an upper pressi...  
JP6905935B2
A sheet conveyance apparatus (1) is provided in a sheet-fed offset printing press (2) including a printing unit (11). The printing unit (11) includes an impression cylinder (13) configured to hold and convey a sheet (4) and a printing de...  
JP6899658B2
To provide a printing machine capable of avoiding collision between parts of cylinders when a drive part different from a drive part of a machine side cylinder is broken.A printing machine capable of performing two-sided printing on a pa...  
JP6895775B2
Satisfactory image transfer is implemented in a printing apparatus configured to nip a print medium by two rotating bodies and transfer an image to the print medium according to an embodiment of this invention. For this purpose, the prin...  
JP6842938B2
To prevent collision of claws and prevent occurrence of misregister of the front and back.A drive control device includes: a main machine which includes a plurality of cylinders; and a reverse mechanism which reverses a paper sheet. The ...  
JP6814566B2
To provide a printer capable of accurately supplying sheets from the first sheet to a printing section at a high speed.A printer includes: a printing section 4; and a supply section 2 which supplies sheets 3 one by one to the printing se...  
JP6803253B2
To provide a printer capable of preventing a sheet from being torn by a gripper.A printer comprises operating means 10 for operating a gripper 42G only once per two rotations of an inversion cylinder 42. A gripper 42G is prevented from m...  
JP6796852B2
Disclosed is a corrugated paperboard box making machine which comprises a sheet feeding apparatus, a processing apparatus, a folder-gluer, a counter-ejector for stacking the box-structured corrugated paperboard sheets and separating them...  
JP2020131554A
To provide a sheet delivery mechanism capable of preventing pressure variation due to contact between an impression cylinder and a transfer cylinder in a sheet-fed printer, in particular, of preventing heat expansion and bound of a wipin...  
JP2020100466A
To provide a flexible base material conveying device capable of stably holding a flexible base material on a conveying cylinder to more surely convey it.In the flexible base material conveying device including a rotatable impression cyli...  
JP6698641B2
The invention relates to a sheet-fed press (10) comprising a sheet feeding device (11) for introducing sheets that are to be printed into the sheet-fed press, at least one printing unit (12) and/or coating unit (13) for printing the shee...  
JP6685171B2
A printing unit in a sheet-fed printing machine includes a printing cylinder, an upstream transfer cylinder and a downstream transfer cylinder. The transfer cylinders each include a device for decelerating/accelerating a sheet. The devic...  
JP2020037268A
To provide a mechanical structure for continuously processing a plurality of sheet-like substrates.Processing stations (01;02;06;07;08;09;12) have a non-impact printer (06) that performs printing on substrates individually. The non-impac...  

Matches 201 - 250 out of 3,730