Abstract: A screen printing apparatus is configured to perform a printing operation and a checking and inspecting of the state of print on a substrate. A mask frame and a camera apparatus for checking and inspecting the print state are arranged along a direction of transfer of the substrate so as to be disposed in parallel to each other. After the substrate receives a printed pattern by operation of a squeegee apparatus, the substrate is moved by substrate support tables to a checking and inspecting station. The supporting tables are arranged below the mask frame and the camera apparatus.

Abstract: A stamp playset includes a book-like case supporting a plurality of symbol pads together with an elongated inking pad and a generally cylindrical roller stamp. The roller stamp includes a cylindrical housing within which a cylindrical roller is supported. The cylindrical roller defines a plurality of attachment slots which receive attachment flanges of selected symbol pads. The symbol pads are arrangeable in a variety of sequences as desired. The roller further supports a symbol cube having a plurality of symbol elements. The symbol cube is rotatably supported to facilitate alignment of a selected one of the plurality of symbol elements thereon within the sequence of symbols to be roller stamp.

Abstract: A method and apparatus for fitting a printing plate to a plate cylinder where the printing plate is bent into a circular shape and fixed in this form by leading and trailing legs of the plate being firmly connected to each other. The printing plate shaped in this way is subsequently axially pushed onto the plate cylinder from the free side of the plate cylinder.

Abstract: A clamping device for firmly clamping a cylinder packing or covering on a printing machine cylinder, the clamping device having a clamping seat, a clamping jaw cooperating therewith, and an eccentric shaft, includes a support wherein the eccentric shaft and the clamping jaw are jointly mounted, the support being adjustable alternatively into a first support position and into a second support position relative to the clamping seat; and a printing machine having at least one clamping device with the foregoing construction.

Abstract: A printing plate made of rolled sheet metal strip for extra-wide machines with an increased service life is made having a length and width arranged obliquely to the rolling direction of the sheet metal. A process for producing rectangular panels from rolled sheet metal strip with main directions running obliquely with respect to the rolling direction to produce such printing plates includes cutting the sides of the rectangular panels obliquely to the rolling direction of the sheet metal strip.

Abstract: A screen printing apparatus for applying a printing agent in different thicknesses to a plate. A mask of the apparatus has a width corresponding to or matching the widths of two plates to be printed. A first portion of the mask, for applying a first printing to the plate, is reduced by recessing an upper surface of the mask portion, with screen holes being provided therein pursuant to a desired pattern. A second portion of the mask, for applying a second printing to the plate, is provided with screen holes in a different pattern. Recesses are provided in the lower surface of the second portion of the mask for receiving the printing agent applied via the first portion of the mask, thereby preventing the printing agent from attaching to the second portion of the mask. A single printing operation, on two plates disposed side by side, is performed by moving a squeegee having two portions with different thicknesses or heights. The plate to be printed can be shifted under the lower surface of the mask.

Abstract: An apparatus for inspecting a screen of a screen printing machine, including the steps of taking, with an image taking device, an image of at least one opening of the screen, and judging, based on image data representing the taken image, whether the opening of the screen is clogged.

Abstract: The imprint printing system allows imprinter head changes on the run. A printing roller, either an offset or a flexo printing roller, has an axial channel in which one or more imprinter heads are disposed. The imprinter heads can be selectively raised out of the channel so that the print surface projects radially above the periphery of the printing roller. In a variation of the basic concept, the imprinter heads are also axially movable along the axial channel. The individual heads can thereby be brought into a printing section defined by the location at which the product is to be imprinted. The respective imprinter head is raised for printing only in the printing section, while the other heads are withdrawn into the channel.

Abstract: In the multi-drum type rotary stencil printer adapted to drive a plurality of printing drums altogether in synchronization with one another by a common drive mechanism, when one of the printing drums is placed out of engagement with a printing, a degradation of ink is anticipated in the temporarily rested printing drum due to its excessive stirring during an idling rotation. In order to avoid such an ink degradation, a clutch is incorporated in a route of transmitting a driving force from the common drive mechanism to each of the printing drums, so that the transmission of the driving force through each of the route can be selectively interrupted.

Abstract: Four impression cylinders of first and second face-side coating units and first and second back-side coating units, and two transfer cylinders of a face-side drying unit and a back-side drying unit are arranged adjacently and nearly linearly in a paper flow direction. Above circumferential surfaces of the odd-numbered cylinders of these cylinders, the first face-side coating unit, the second face-side coating unit, and the face-side drying unit are arranged. Below circumferential surfaces of the even-numbered cylinders, the first back-side coating unit, the second back-side coating unit, and the back-side drying unit are arranged. Above the circumferential surfaces of the odd-numbered cylinders, a first face-side drying device and a second face-side drying device, each of which has one dryer, are disposed downstream of the first face-side coating unit and the second face-side coating unit, respectively.

Abstract: A screen printing apparatus is designed so that cream solder 17 disposed on a mask plate 12 can be preserved at a certain appropriate temperature by the limited use of blown air. An air nozzle unit 20 is provided above the mask plate 12 at a place on the side edge running in parallel with the moving direction of a squeegee 16. The temperature-conditioning air is blown sidewise from the air nozzle unit 20 towards the cream solder 17 during the operation of printing the cream solder 17 on the surface of a substrate through the mask plate 12 disposed in contact therewith.

Abstract: A stencil printer includes a hollow cylindrical, porous ink drum freely rotatable. A multistage paper feeding device includes a plurality of paper stacking portions and capable of feeding papers of particular size from each paper stacking portion. At least one pair of side fences are mounted on each paper stocking portion for positioning the papers in the widthwise direction of the papers. A rack is positioned to stack the papers or printings each carrying a printed image thereon. An ink drum shifting device shifts the ink drum in the widthwise direction of the papers perpendicular to the direction of conveyance of the papers. A rack shifting device shifts the rack in the widthwise direction of the papers. A storing device stores the position of a center line of a paper transport path for each of the paper stocking portions.

Abstract: To provide a stencil printer equipped with a carriage capable of stably and definitely conducting a leading end of a stencil sheet from a position at an outlet of a stencil sheet perforation device to a stencil sheet leading end mounting device of a printing drum and also capable of braking the stencil sheet so that the stencil sheet is wound around the printing drum according to its rotation under any optimum controlled expansion applied thereto, the carriage is provided with a stencil sheet leading end clamping device and a pair of stencil sheet leading end feeding rollers, separately, the stencil sheet leading end clamping device clamping the leading end of the stencil sheet when the carriage moves from the position at the outlet of the stencil sheet perforation device to the stencil sheet leading end mounting device of the printing drum, while the stencil sheet leading end feeding roller pair feeding out the stencil sheet leading end toward the stencil sheet leading end mounting device of the printing dru

Abstract: A spray dampening device for a printing apparatus, the spray dampening device comprising a plurality of spray nozzles. The spray nozzles are each cycled at a predetermined frequency and at an individual nozzle phase shift with the individual phase shifts being synchronized so that an effective frequency of spray bursts applied to target surface of the printing apparatus is greater than the predetermined frequency. Dampening system performance may be improved without the implementation of new individual nozzle technology. The benefits of a pulsed dampener system are maintained while system performance approaches that of a continuous dampener.

Abstract: A stencil printing machine includes a thermal head for perforating a stencil sheet; a platen roller situated adjacent to the thermal head, the platen roller conveying the stencil sheet in a predetermined direction while holding the stencil sheet in contact with the thermal head; a printing drum situated near the thermal head and the platen roller, the printing drum being adapted to receive the stencil sheet perforated by the thermal head and the platen roller; and a discharging member situated near the platen roller on a downstream side of the predetermined direction relative to the thermal head and the platen roller, the discharging member discharging static electricity charged on the stencil sheet.

Abstract: A method of locking a precut silkscreen fabric to splines which are then inserted into retensionable roller frames, wherein the fabric is scored where it contacts the spline, permitting the adhesive to lock the sections of the spline together through the scores in the fabric, mechanically locking the fabric in place.

Abstract: A universal edge strip is secured to both leading and trailing edges of a flexographic carrier sheet. A universal edge strip assembly includes the universal edge strip and a retaining clip. The universal edge strip includes a first pair of parallel walls connected to a center web which define a first deep slot or channel. The universal edge strip also includes a second pair of walls connected to the same center web which defines a second J-shaped shallow slot or channel. The first slot receives the carrier sheet which is secured to the universal edge strip by conventional means. One of the walls adjacent the second shallow slot includes a projection or J-shape which defines a throat adjacent the opposite wall. A U-shaped retaining clip is received within the second shallow slot in the universal edge strip at one end of the carrier sheet and is hooked to an undercut lip on the flexographic printing cylinder. As noted, both leading and trailing edges of the carrier sheet include a universal edge strip.

Abstract: A method for etching a pad-printing cliché and printing an image therefrom on a golf ball comprising providing a film positive of an image; placing the film positive on a pad-printing cliché having a variable relief photocurable pre-polymer surface; curing the pre-polymer that is not blocked by the film positive; removing the film positive from the polymer surface; washing the pad-printing cliché for a first predetermined time sufficient to remove any uncured pre-polymer, such that the pad-printing cliché has the image etched into the pre-polymer surface, the etched image having a substantially homogeneous bottom surface that is free of protrusions formed by screens, normally required for variable relief material, heating the pre-polymer for a second predetermined time sufficient to fully dry the pre-polymer; further curing the pre-polymer exposed by the washing step; providing a golf ball having a dimpled surface; distributing a layer of ink over the etched image in the pad-printi

Abstract: A method is furnished for producing a compressible layer for a printing blanket by heating a sheet-shaped intermediate layer of a rubber composition having a structure in which hollow microspheres are dispersed in matrix rubber for one to fifty minutes under certain defined conditions of vulcanizing pressure and temperature using a vulcanizer for applying heat and pressure in direct contact with the intermediate layer. The produced compressible layer exhibits superior compressibility and durability, is uniform in thickness and internal structure, and does not reduce the productivity of the printing blanket and increase the fabrication cost of the printing blanket.

Abstract: A stencil printer includes a document size sensing device for sensing the size of a document and a paper size sensing device for sensing the size of papers. A controller determines the orientation and size of the document and those of the paper on the basis of information output from the two sensing devices. If the document and paper are different in orientation, the controller controls a master making section on the basis of the orientation of the papers for forming a document image in a master in accordance with the orientation of the paper. At the same time, the controller controls a side fence moving device and an end fence moving device such that side fences and an end fence mounted on a paper discharge tray each are located at a particular position matching with the size of the papers. The side fences are movable in the widthwise direction of the paper while the end fence is movable forward and backward in the direction of paper discharge.