21 results about "Printing press" patented technology

A paste supply apparatus includes a plurality of paste pots each including a bottomed tubular container storing paste and a movable inner lid provided in the tubular container and having a through hole formed in a center portion thereof, and a pot holder which holds the paste pots so as to be horizontally arranged along an arrangement direction such that the through hole of each of the paste pots is directed downward and downward movement of the inner lid thereof is regulated. The paste supply apparatus further includes a pot holder moving device which moves the pot holder along the arrangement direction and selectively positions one of the plurality of paste pots at an ejection position, and a paste ejecting device which presses the tubular container of the paste pot positioned at the ejection position and which ejects the paste in the tubular container from the through hole.

The invention discloses a method and a device for obtaining holographic patterns. The device comprises a transmission unit which includes an unwinding roll and a wind-up roll and substrate material operating on the transmission unit; a coating unit used for coating UV cured varnish on a given position of the substrate material is arranged at the downstream of the unwinding roll; a holographic template is arranged at the downstream of the coating unit; and the holographic template is used for transferring holographic patterns of the holographic template to the surface of the UV cured varnish on the substrate material through mould pressing and internally provided with a UV lamp used for drying and solidifying the UV cured varnish, and the part of the holographic template contacting with the UV cured varnish is made of transparent material. Because the holographic template is internally provided with the UV lamp, and the part of the holographic template contacting with the UV cured varnish is made of transparent material, the mould pressing and solidification can be completed simultaneously, thereby saving the working time, preventing dust or powders and the like from falling in the UV cured varnish, and ensuring the quality of a finished product.

The invention relates to the technical field of packaging printing machines, and discloses an automatic ink adding device for a packaging printing machine. The automatic ink adding device comprises acontaining box and ink boxes, wherein a plurality of containing grooves are formed in the front surface of the containing box at equal intervals from left to right; the tops of the multiple containinggrooves extend to the upper surface of the containing box, and the ink boxes are arranged in the plurality of containing grooves; an adding pipe is inserted in an ink box of the printing machine, andat the moment, a sealing head can block an opening of the ink box; after a lower liquid level sensor on the adding pipe detects that the liquid level in the ink box is low, a signal can be sent to aPLC, then the PLC can control an electromagnetic valve and an ink pump in the ink boxes to be started, and accordingly ink in the ink boxes can be injected in the ink box; and after the lower liquid level sensor on the adding pipe detects that the liquid level in the ink box is high, a signal is sent to the PLC, the PLC controls the electromagnetic valve and the ink pump to be stopped, and ink adding in the ink box is stopped.

A spray device for a printing press includes a liquid inlet orifice for receiving a liquid, a gas inlet orifice for receiving a gas disposed downstream from the liquid inlet orifice, and an exit orifice disposed at a distance from a surface of the printing press. In addition, a method for applying a liquid to a surface of a printing press, includes the steps of providing a liquid to a liquid inlet orifice of a spray device, providing a gas to a gas inlet orifice of the spray device; and spraying a mixture of the liquid and gas onto the surface of the printing press.

The invention discloses a closed scraper device used for a gravure printing machine. The closed scraper device used for the gravure printing machine comprises a stand and a closed scraper cavity arranged on the stand, an adjustable scraper is arranged at the concave surface of the upper part of the closed scraper cavity, a fixed scraper is arranged at the lower part of the closed scraper cavity, the adjustable scraper is capable of moving along the concave surface of the closed scraper cavity, and a head face sealing block is arranged at each of the joint between the adjustable scraper and a printing plate roller and the joint between the fixed scraper and the printing plate roller; the adjustable scraper, closed scraper cavity, fixed scraper, printing plate roller and head face sealing blocks jointly form a closed cavity in a surrounding mode. The closed scraper device used for the gravure printing machine solves the problems that an existing open type scraper device is low in printing quality and large in printing ink consumption due to solvent evaporation in printing ink storage.

Using liquid print color in a printing process in which the print color is transferred from one transfer device onto another transfer device and/or onto a printing medium. To improve handling of the print color, in particular, to optimize it, preferably to avoid adversely affecting transference of the print color and at the same time to avoid adverse effects upon the printing medium, at least one liquid component of the print color is reduced.

An apparatus for feeding a foil of a printing machine with tension is disclosed, in which vacuum pressure is only applied to a part of a shaft through which a foil passes, and an outer surface in contact with the foil is rotated. The apparatus comprises a cylindrical shaft body provided with a plurality of holes on the outer surface; a sun roller provided based on the center of the shaft body, having a diameter smaller than an inner diameter of the shaft body; a plurality of pinion rollers closely adhered to one another between the sun roller and the inner surface of the shaft body; and a bearing stopper provided to seal both ends of the shaft body and connected with a pump to supply vacuum pressure to only a space formed by the shaft body, the sun roller and two of the pinion rollers.

The invention provides an automatic printing production device for thin plates. The automatic printing production device comprises a hole plugging printing machine, a rolling machine and a double-sided printing machine; the hole plugging printing machine, the rolling machine and the double-sided printing machine each comprise a feeding port and a discharging port; thin plate conveying mechanisms are arranged between the discharging port of the hole plugging printing machine and the feeding port of the rolling machine and between the discharging port of the rolling machine and the feeding port of the double-sided printing machine; each thin plate conveying mechanism comprises a rack, a mechanical arm and a roller path; each mechanical arm comprises an X beam, a Y beam and an air clamp; one end of each Y beam is fixedly connected with the middle portion of the corresponding X beam, and the other end of each Y beam is provided with a lifting mechanism; and each X beam and the corresponding Y beam form a horizontal T-shaped structure. According to the automatic printing production device for the thin plates, the thin plate conveying mechanisms are adopted, the full-automatic integrated machining process of hole plugging, rolling and double-sided printing is achieved, the problem about thin plate conveying adaptability of various thin plate printing devices is solved, the thin plates can be automatically conveyed among a plurality of machining stations, and the automatic printing production device has the beneficial effects that production manpower is saved, and the production efficiency is improved.

A printing machine includes a printing assembly and a dryer unit having a dryer, with the dryer having at least one first energy output device. The at least one first energy output device is arranged such that it can be moved over an actuating distance between at least one active position and at least one stop position. The actuating distance extends in a continuously linear manner in or opposite to an actuating direction over at least 75% of its entire length. The actuating direction deviates by a maximum of 40° from at least one horizontal direction. The actuating direction deviates by a maximum of 40° from a normal direction of an average surface normal of an entire section, located in an active region of the at least one first energy device, of a transport path which is provided for a web-type printing machine. A method of operating a printing machine is also disclosed.

The invention discloses a paper pressing device for a printer. The paper pressing device comprises a rack (2) located above print paper (1), wherein the two ends of the rack (2) are both connected with swinging rods (4) through first rotating shafts (3); one ends of the swinging rods (4) are connected with a bracket (5), and the end parts of the bracket (5) are connected with paper pressing rollers (7) through second rotating shafts (6); the other ends of the swinging rods (4) are connected with take-up reels (9) through lifting ropes (8), and two winding grooves (10) are arranged on the take-up reels (9); and the two winding grooves (10) are separately connected with the lifting ropes (8) on the two swinging rods (4), and the winding directions of the two lifting ropes (8) in the two winding grooves (10) are identical. The paper pressing device can increase paper pressing efficiency and prevent paper damage, and also has the advantages of being great in paper flatness and being convenient to use.

The invention discloses a self-shearing packaging decoration printing machine in the technical field of printing machines. The self-shearing packaging decoration printing machine comprises a body, an unwinding mechanism, a supporting mechanism, a transmission mechanism, a shearing mechanism, a fixing mechanism, a collecting mechanism and a tensioning mechanism, wherein the unwinding mechanism is fixed connected to the lower side of the left side wall of the body; the supporting mechanism is fixedly connected to the middle of the bottom of an inner cavity of the body; the transmission mechanism is rotationally connected to an inner cavity of the supporting mechanism; the shearing mechanism is fixedly connected to the right side of the top of the body in a penetrating mode; the fixing mechanism is rotationally connected to the middle of the right side of the rear side wall of the inner cavity of the body; the collecting mechanism is fixedly connected to the lower side of the right side wall of the body; and the tensioning mechanism is fixedly connected to the left side of the top of an inner cavity of the body. The self-shearing packaging decoration printing machine is reasonable in structural design, and capable of protecting the normal operation of the equipment, improving the printing quality and the printing working efficiency and meanwhile reducing the working intensity of workers.

The invention discloses a high-efficiency ink printing machine. The high-efficiency ink printing machine comprises a rack, a printing machine body fixed in the middle of the upper end of the rack anda conveying tensioning device arranged on the rack. The high-efficiency ink printing machine solves the problems that in the operation of an existing printing machine, a printing coil needs to be flattened manually before the printing operation, the printing coil deforms in the printing operation, the printing coil cannot be adjusted and tightened timely according to the actual situation in the printing operation, the printing quality after pattern forming is influenced, the accuracy of the mode of flattening the printing coil is poor through manual flattening, the surface of the printing coilis likely to be wrinkled due to negligence and the like, the printing quality is influenced and the like.

The invention provides a printing machine with code spraying and up-and-down printing functions for cartons. The printing machine with the code spraying and up-and-down printing functions for the cartons comprises a rack, and an operation table is fixedly connected to the front face of the rack. According to the printing machine with the code spraying and up-and-down printing functions for the cartons, through the arrangement of a first L-shaped plate and a second L-shaped plate, the fed cartons can be positioned, so that the cartons can accurately enter a printing area in the printing machine, printing operation is facilitated, the guide carrier rollers are arranged on the first L-shaped plate and the second L-shaped plate, guide carrier rollers are arranged on the first L-shaped plate and the second L-shaped plate, the cartons in the feeding process can be positioned, after the cartons are extruded to the guide carrier rollers, the cartons are driven to smoothly enter the first L-shaped plate and the second L-shaped plate through rotation of the guide carrier rollers, collision is avoided, and the situation that the side walls of the first L-shaped plate and the second L-shaped plate are touched, so that the corners of the carton are turned up and damaged is avoided, and the printing machine can operate normally and stably.

Producing at least partially translucent packaging materials that contain natural dyes or pseudo-natural dyes, chlorophyll in particular. Natural dyes or pseudo-natural dyes are added to a toner and are applied to the packaging material in a printing step, preferably in an electrophotographic printing machine.

The invention discloses a leafrogging device for on-line cold foiling of a printing machine. The leafrogging device comprises an unwinding device, a winding device, two anilox rollers and four groups of driving mechanisms, wherein the unwinding device and the winding device are used for unwinding and winding alumite foil respectively; the anilox rollers are arranged on the pathways that the alumite foil enters and leaves a printing unit respectively, and are arranged between the two side wall plates of the printing machine; each end of the anilox rollers is connected with one group of driving mechanism; the anilox rollers can slide along guide grooves, which are in the two side wall plates of the printing machine, under the driving of the driving mechanisms. The leafrogging device utilizes the characteristic that a roller is free from printing in a neutral position, adopts reciprocating movement of the anilox rollers to control conveying resulting velocity of the alumite foil, and improves usage rate of the alumite foil, that is, cost is reduced effectively and environment is protected while realizing on-line cold foiling; a key part adopts a cam mechanism; the structure is simple; operation is stable.

The invention discloses a control box and an informatization printing process. The control box comprises a shell. A circuit board is arranged in the shell. The circuit board comprises an MCU module, an AC-DC module, a power management module, a storage module, an Ethernet interface module, an RS232 interface module, an RS485 interface module, a relay interface module, a switching value interface module, a 4-20MA interface module, a 0-10V interface module, a DI/DO interface, an IIC interface and an SIP interface. The AC-DC module, the power management module, the storage module, the Ethernet interface module, the RS232 interface module, the RS485 interface module, the relay interface module, the switching value interface module, the 4-20MA interface module and the 0-10V interface module areelectrically connected with the MCU module. The DI/DO interface, the IIC interface and the SIP interface are the interfaces of the MCU module. The control box is used for collecting parameters of a printing machine and controlling the printing machine, and is further used for connecting the printing machine and an upper platform.