5810results about "Screen printers" patented technology

A printing system comprising a stencil printing apparatus and a digital printing apparatus for high speed printing of images having details of high resolution, rich colors, or variability, optionally also comprising a wetting apparatus operative to wet at least a part of the printed object prior to the digital printing.

The present invention discloses a cantilever type screen-printing machine with double platforms that possess a gear reducer motor with a hollow shaft to rotate a screw of a threaded screw unit and further drive a threaded rod to move upward and downward without rotation inside the hollow shaft thus make a transverse sliding assembly move vertically and synchronously with the threaded rod. Moreover, by a rectangular frame and two sets of horizontal micro adjustable chase clamping mechanism transversely fixed on the rectangular frame, the relative position between the chase and the print materials is adjusted directly. The upper and the lower platforms are driven and powered by two gear reducer motors and a homocentric coaxial-type driving mechanism respectively. By the simplified driving mechanism, the printing efficiency and productivity are enhanced.

The invention discloses a full-automatic high-precision double-printing-platform screen printing machine. The full-automatic high-precision double-printing-platform screen printing machine comprises a machine frame, material conveying mechanism, a screen printing plate mounting and alignment mechanism and a screen printing mechanism and further comprises a double-printing-platform transfer assembly located on the machine frame, wherein the material conveying mechanism is located on the machine frame; the double-printing-platform transfer assembly comprises a positioning position, a printing position, a lifting printing platform and a printing platform, the lifting printing platform and the printing platform are located in the positioning position or the printing position alternately and switched between the positioning position or the printing position; the material conveying mechanism is used for conveying to-be-printed materials to the positioning position; and the screen printing plate mounting and alignment mechanism and the screen printing mechanism are arranged above the printing position for printing the to-be-printed materials located in the printing position. By means of the full-automatic high-precision double-printing-platform screen printing machine, while one to-be-printed material is printed, another to-be-printed material is automatically fed onto the printing platform and photographed and positioned, and the technical problems that most of existing full-automatic flexible-plate screen printing machine adopts single-platform linear material conveying, and consequently the system efficiency is low are solved.

A method and apparatus for printing images on a high volume of printable substrates such as garments is disclosed. The apparatus comprises an inkjet printer, a conveyor system, heat presses and beds. The beds are trays with garment attachments such as platens for holding multiple garments in place during printing. In the preferred embodiment, the method first involves loading garments onto the beds and platens. The beds then travel along the conveyor system which includes one or more conveyor tables and optional heat presses. The beds are preferable placed under a heat press for pre-pressing the garments. Then the conveyor system facilitates the transfer of the beds to a high volume inkjet printer, where both an underbase and an image can be printed on each garment. After printing images on the garments, the beds are transferred again to the conveyor system and optionally delivered to another heat press to cure the image. Finally, the garments are unloaded from the beds and new un-printed garments are loaded.

A linear printing machine with exchangeable printing modules for printing on hollow bodies. The machine includes a transport system including a drive, using which the hollow bodies to be printed on are transported through the linear printing machine and at least a first printing station and a second printing station which is arranged downstream of the first printing station in the conveying direction of the hollow bodies. At least one drying station dries the ink on the hollow bodies which have been printed on. A machine controller controls at least the transport of the hollow bodies through the linear printing machine, wherein each of the printing stations is prepared to accommodate a printing module comprising a drive of its own, and wherein the printing module can be connected to the machine controller via an interface, wherein the printing modules print on the hollow bodies using a printing method selected from screen printing and/or flexographic printing and/or offset printing and/or cold embossing and/or hot embossing and/or laser colour transfer and/or inkjet.

The invention relates to a printing screen which comprises a screen frame, a silk screen and a metal sheet with a screen printing pattern; the silk screen is arranged at the screen frame in a tightening way; the metal sheet is fixed on the surface of the silk screen; the screen printing pattern of the metal sheet is ablated by the laser; the precision of the screen printing pattern is +0.005 to +0.02mm or -0.02 to -0.005mm. The invention also relates to a manufacturing method of the printing screen. The printing screen with high precision is beneficial to a circuit board with high density to carry out precise screen printing, can effectively prevent the scrapping of the circuit board caused by the screen printing and improve the yield of manufacturing the circuit board.

The invention discloses a screen printing device for solar batteries. The screen printing device comprises a printing scraper, an auxiliary scraper, a feed back knife and a printing screen. The device is characterized in that two baffle structures are mounted on the printing screen, at two sides close to the ends of the printing scraper, wherein each baffle structure is mainly composed of a baffle surface, a baffle frame and an installation rack; the bottom of the baffle surface is in split type contact with a screen surface, or adhered to the screen surface through a flexible material; edges of the feed back knife, the printing scraper and the auxiliary scraper are in seamless contact with the baffle surface; a printing head drives the scrapers and the feed back knife to contact the baffle surface in a sliding manner, so that the paste moves in a range defined by the baffle surfaces at the two sides, the scraper and the feed back knife, and slurry is prevented from flowing to the two sides; and the device can ensure uniform fluidity, viscosity and thixotropy of the slurry and avoid the local drying and waste of the slurry, thereby improving electrode printing efficiency and printing quality.

The present invention(s) provide an apparatus and method for processing substrates in a screen printing chamber that can deliver a repeatable and accurate screen printed pattern on one or more processed substrates. In one embodiment, the screen printing chamber is adapted to perform a screen printing process within a portion of a crystalline silicon solar cell production line in which a substrate is patterned with a desired material. In one embodiment, the screen printing chamber is a processing chamber positioned within the Rotary line tool or Softline™ tool available from Baccini S.p.A., which is owned by Applied Materials, Inc. of Santa Clara, Calif.

A method and apparatus for printing on dark textiles such as black t-shirts is disclosed. The method includes screen printing an underbase onto the textile and then using an inkjet printer to print an image over the underbase. In the preferred embodiment, a white, opaque image is screen printed onto a black t-shirt, followed by inkjet printing a white image on top of the screen-printed image.

A method for printing light colors on dark substrates such as black textiles is disclosed. The method includes screen printing a pre-treatment onto a textile, inkjet printing an underbase on the textile, inkjet printing an image over the underbase, and counting and displaying the number of printings of the underbase and image. In the preferred embodiment, a pre-treatment is screen printed onto a black t-shirt, then a white, opaque underbase is inkjet printed onto the black t-shirt, and finally a white image is inkjet printed over the white underbase. In alternative embodiments, a white image is inkjet printed directly on the black t-shirt without any underbase or is inkjet printed over a screen printed underbase.

Disclosed herein is an apparatus for depositing viscous material on an electronic substrate. The apparatus comprises a frame, an assembly material applicator coupled to the frame and configured to apply assembly material to the electronic substrate, a substrate support assembly, coupled to the frame, configured to support and secure the electronic substrate in a material application position, and a transport system, coupled to the frame, to shuttle electronic substrates to and from the substrate support assembly, the transport system including an upper track and a lower track disposed below the upper track.

A stencil printing machine has a printing drum having a cylindrical circumferential wall adapted to receive a perforated stencil sheet wrapped on an outer circumferential surface thereof and driven to rotate around a central axis thereof the circumferential wall having an opening portion with many through holes formed therein, a non-opening portion formed around the opening portion, and at least one recessed portion formed in at least one part of the opening portion adjacent to the non-opening portion in an axial direction of the circumferential wall; an ink supplying roller situated in the printing drum for supplying ink to an inner circumferential surface of the cylindrical circumferential wall of the printing drum; and a press roller situated adjacent to the printing drum and being urged against the outer circumferential surface of the cylindrical circumferential wall of the printing drum.

Provided is a solar-cell manufacturing method that is capable of preventing a conductive paste from bleeding and spreading on a photoelectric conversion body. In the provided method of manufacturing a solar cell, a first printing speed at which a first conductive material is printed is faster than a second printing speed at which a second conductive material is printed on the first conductive material.

A pull band (34) is attached to a printing plate (22) in a flexographic printing operation to hold a flexible substrate (30) in a selected orientation for transfer of ink in a selected pattern. The pull band overcomes differences in friction between the printing plate and the substrate in areas of different amounts of ink to maintain the selected orientation. A specific length pull band may be selected and cut from a roll of pull band material. Pull bands may be attached parallel and perpendicular to the direction of rotation of the printing plate.

The invention discloses a positioning method in novel silk screen printing CCD (charge coupled device) image identification, comprising the following steps of: (a) conveying PCBs (printed circuit boards) to an operating platform part to be initially positioned and clamped by virtue of an introducing part and an operating platform conveying part; (b) obtaining a CCD positioning identification template by adopting a manually programming method; (c) calculating angular deviation and distance deviation by virtue of the PCBs and MARK points on a silk screen, controlling the operating platform to correspondingly adjust position and angle; and (d) moving an image acquisition device to the position above the PCBs and the MARK points, respectively shooting the PCBs and the MARK points of the silk screen by virtue of a CCD camera, matching the obtained image with the CCD positioning identification template, and carrying out automatic printing after a matching requirement is achieved. The invention provides a whole set of system, the system can automatically detect offset between the center of an object window required to be retrieved by a user and the center of any pattern, the offset is namely correction, the correction is added during counterpoint calculation, and counterpoint actuating quantity is calculated and a counterpoint action is executed. For various patterns used for counterpoint of a base plate, the various patterns can be simply counterpointed without high correction proficiency requirement, and printing counterpoint accuracy can be improved.

The printing machine comprises at least one transfer system (5) for conveying a substrate (1) onto an impression cylinder (6) and at least one screen (7, 8) of cylindrical or flat shape, with a doctor blade, said screen collaborating with the impression cylinder (6) and intended to print the substrate with an ink containing pigments that can be orientated by a magnetic field and an unloading system (9) for carrying the substrate (1) away. The impression cylinder comprises at least one magnetic element on its impression surface, said magnetic element being positioned at a point corresponding to said impression performed by said screen (7, 8) on said substrate.

An electronic device is provided. The electronic device includes a foldable housing. The foldable housing includes a first housing including a first display and an illuminance sensor on a front surface, and a second housing, adjacent to the first housing, including a hole formed through a front surface and a rear surface of the second housing. The front surface of the first housing faces the front surface of the second housing when the second housing is folded in a first direction with respect to the first housing, and a rear surface of the first housing faces the rear surface of the second housing when the second housing is folded in a second direction with respect to the first housing.