Abstract: A method for operating a pad printing system includes receiving a removable pre-filled ink cup on a doctor assembly, orienting the removable pre-filled ink filled cup on the doctor assembly, and dispensing ink from the oriented removable pre-filled ink cup. A removable pre-filled ink cup is provided for a pad printing system including an ink retention portion pre-filled with ink, and a doctor assembly orientation portion formed on an outer portion of the retention portion, wherein the removable pre-filled ink cup is configured to deposit ink on a cliché device via a doctor assembly mated with the doctor assembly orientation portion.

Abstract: A pad printing system includes a doctor assembly, a first force applicator, and a second force applicator. The doctor assembly further includes a first set of opposing contact points and a second set of opposing contact points, wherein the first set is offset from the second set. The first force applicator is operable to apply force at the first set of contact points and the second force applicator is operable to apply a force to the second set of contact points.

Abstract: A squeegee unit for a rotary screen-printing device comprises a squeegee (2) with a squeegee edge (3) which is designed, during operation of a rotary screen-printing device in which the squeegee unit is mounted, to be pressed onto the inner side of a cylindrical screen of the rotary screen-printing device, and a squeegee holder (1) in which the squeegee is mounted. The squeegee edge (3) can be moved away from the squeegee holder (1) and towards the squeegee holder. A resilient element (18) is arranged between the squeegee edge (3) and the squeegee holder (1), in such a manner that the squeegee edge is pressed away from the squeegee holder by spring force. The squeegee unit is provided with travel-limiting means which are designed in such a manner that the squeegee edge (3) can be moved over a relatively short distance of at most 1 mm and preferably of at most 0.5 from the working position in a direction away from the squeegee holder.

Abstract: A color chamber doctor blade has two doctor blade knives oriented in a roof-like fashion against a roller, from which the two doctor blade knives can be fixed on a doctor blade chamber body by means of a clamping plate. The clamping plate is in active connection with long-stretch fasteners in the axial direction (z) of the roller. The long-stretch fasteners are arranged substantially parallel to the clamping plate, and apply the force required for fixing at least one doctor blade knife. The resultant of the force exercised by the fasteners points toward the doctor blade chamber body.

Abstract: An ink supply system is used with a printer of the type in which ink is deposited in an engraved receiving region on a cliché plate and is scraped from the plate leaving ink in the receiving region. The ink supply system includes an ink cup having a hollow interior defining an ink reservoir and defining an outer edge. The outer edge has a doctor blade formed thereon for engaging and scraping the plate. The ink cup has an inlet and an outlet. A pump has a suction side and a discharge side with the suction side in flow communication with the cup outlet for drawing ink from the cup. A viscosity controller is in flow communication with the pump discharge and receives ink from the pump. A flow conduit extends between the viscosity controller and the ink cup for providing a flow of ink from the viscosity controller to the ink cup.

Abstract: Deposition of a metal-containing reagent solution or suspension onto a conductive substrate by various pad-printing techniques is described. This results in a pseudocapacitive oxide coating, nitride coating, carbon nitride coating, or carbide coating having an acceptable surface area for incorporation into an electrolytic capacitor, such as one having a tantalum anode.

Abstract: A method for shifting a doctor blade in its longitudinal direction, the doctor blade being set against a cylinder of a printing machine, wherein the shift movement of the doctor blade is such that, for most of the time of the print operation, the shift velocity of the doctor blade is in a range from 0 to 0.1 m/s, and a printing machine having a doctor blade assembly, including a doctor blade arranged to be set against a cylinder, and a shift mechanism for shifting the doctor blade in its longitudinal direction, such that the shift mechanism is adapted to execute the method.

Abstract: Apparatus and methods for applying solder paste to circuits, such as integrated circuits, are disclosed. The apparatus and methods comprise a squeegee blade having a pair of elongated face sides spaced apart by a selected thickness and a corresponding pair of elongated substantially parallel narrow sides spaced apart by a selected width. The elongated face sides and elongated narrow sides join together to form squeegee operating edges. The squeegee blade is free of mounting aperture as to provide four operating edges. The squeegee blade is mounted to a resilient clamping structure which applies a regular and controlled gripping force so as to avoid deformation of the squeegee blade edge due to excessive mounting force. The plurality of fasteners are received by the clamping structure for adjusting the gripping force to the squeegee blade.

Abstract: An ink fountain assembly for use in duplicating machines, such as rotary lithographic machines. The assembly comprises a fountain trough defined by an elongated blade and an ink fountain roller defining a gap therebetween. A proximal edge of the blade is rigidly retained and a distal edge of said blade, adjacent said roller, engaging a portion of the frame and being initially flexed and prestressed toward said roller to define the gap. The gap may be varied to control ink flow therethrough.

Abstract: A method of manufacturing multi-layer circuit board comprising: a hole forming step for forming through-holes or blind-holes in a plate-form or sheet-form board material, and a filling step for filling a paste into through-holes or blind-holes formed in the hole forming step by using a filling means. A second paste is supplied to the paste in the filling process by using a paste supplying means to stabilized a viscosity of the paste and the paste is reliably filled into the through-holes or the blind-holes.

Abstract: A doctor blade device for the removal of dampening medium from a soft surface of an ink applicator roller in the inking unit of a printing machine, having at least one doctor blade placed against the surface of the roller and having an edge radius in the range of 2 mm to 10 mm.

Abstract: The present invention features various systems and methods for providing an image on an organic product to provide a communication to the recipient or otherwise individualize the organic product. Notably, the present invention features an organic product printing system comprising at least one organic product; a support structure that secures one or more organic products therein for printing upon them, wherein the support structure comprises a stabilizer bar for supporting one or more printing assemblies; and at least one printing assembly supported within the support structure, wherein the printing assembly comprises a printing device that prints an image onto the organic product.

Abstract: A method and apparatus is disclosed for gravure coating a liquid reactive with the atmosphere onto a web. The gravure apparatus comprises an engraved gravure cylinder, an impression roller backing the web and pressing it onto the gravure cylinder to form a nip, a curtain or jet formation means to wet the surface of the gravure cylinder, and a doctor blade means for wiping excess coating liquid from the surface of the gravure cylinder prior to the nip. A shroud encompassing the gravure cylinder and the curtain or jet formation means creates a first zone between the nip and a partitioning baffle extending from the shroud, a second zone between the partitioning baffle and the doctor blade means, and a third zone between the doctor blade means and the nip. A gas non-reactive with the coating liquid is supplied to each zone by a gas distribution means such that the reaction rate of the coating liquid with the atmosphere is greatly reduced and the curtain or jet is not disrupted.

Abstract: For use with an ink chamber housing of a printing machine, a combination includes a doctor blade adapted to be secured to the ink chamber housing so as to extend outwardly therefrom, the doctor blade including a doctoring plate having a rear portion to be secured to the ink chamber housing and a front doctoring edge in contact with the outer surface of the roll to meter ink thereto, and a chamber doctor blade shield having one end fixed to the doctor blade in spaced relation from the doctoring edge and a second opposite free end unsecured to the doctoring plate, so as to cover the outer surface of the ink chamber housing to prevent ink from depositing thereon when the combined doctor blade and chamber doctor blade shield is clamped to the chamber housing.

Abstract: A flexographic machine comprising at least one inking unit that has lateral supporting means for a doctor body that forms at least partially an inking chamber and supports at least one first doctor blade and at least one second doctor blade; the inking unit further comprises elements for contrasting the inflection of the doctor body that occurs when the inking unit is in the active condition; the elements that contrast the inflection of the doctor body comprise elements adapted to apply a contrasting flexural action to the doctor body, at least when the inking unit is in the active condition; the contrasting flexural action is substantially equal and opposite to the flexural action affecting the doctor body when the inking unit is in the active condition.

Abstract: A cradle for a spreading device, such as a rotatable rod, to which a spreading organ to be pressed against a movable surface has been attached. The cradle is fastened to a holder, and a gasket is provided between the cradle and the holder (9).

Abstract: A backing lath (6, 14) used for coating a web of paper or paperboard in doctor blade and rod coaters and film-transfer coaters, the backing lath featuring a fiber-reinforced composite material body. When necessary, the backing lath can be surfaced with a wear-resistant coating. The invention also concerns a doctor element assembly, wherein the backing lath has a fiber-reinforced composite material body.

Abstract: A printing press with a doctor blade device (24), which has a doctor blade (26), which can be placed against a cylinder (10), wherein the doctor blade (26) is caused to oscillate with a frequency of at least 1 Hz by an oscillator (38).

Abstract: A printing device (1) is disclosed for rotogravure printing machines comprising: a printing cylinder (3) with notches (50) for printing liquid, a rubber roller (4) for pushing paper web supports (2) against the cylinder (3) in order to print, and a scraper member (7) for cleaning the surface of the printing cylinder (3) of printing liquid not contained in notches (5); the scraper member (7) is equipped with thrusting members (9, 10) central therewith that thrust a central portion of the scraper member (7) towards the cylinder (3) in order to bend the scraper member (7) such that the bend in the scraper member (7) follows a bending to which the cylinder (3) is subjected upon the rubber roller (4) being pushed against the cylinder (3).

Abstract: A seal for a chambered doctor blade (10) of a printing machine, in the form of a rubber-elastic body, which is inserted at the end of the chambered doctor blade in a seal holder (18) and, with an obliquely applied lip (24), lies against the periphery of a roller (12), against which the chambered doctor blade is placed, wherein the seal (20) has a second lip (24), which forms a V-shaped cross section with the first.

Abstract: A self-adjusting blade for engagement with a moving work surface, comprising a steel strip elongated in a first direction between first and second sides, said strip having an edge section along said first side for contact with said work surface, and said edge section being hardened to a hardness exceeding that of the remaining part of said strip. The self-adjusting blade is provided with a coating of a low wear resistance material covering substantially all of said edge section at least on the part thereof contacting the work surface.

Abstract: A seal for a chambered doctor blade (10) of a printing machine, in the form of a rubber-elastic body, which is inserted at the end of the chambered doctor blade in a seal holder (18) and lies against the periphery of a roller (12) against which the chambered doctor blade is placed, wherein the part of the seal (20) taken up in the seal holder (18), is constructed as a solid, rectangular support (22), which lies, with one end face, with a smooth surface (42), in contact with the chambered doctor blade (10) and is surrounded at the three remaining sides by continuous tolerance equalization lips (44).

Abstract: A system and method for sealing a doctor blade is shown. The doctor blade has a non-planar area which facilitates providing at least one substantially continuous contact on one or both sides of the doctor blade to seal the doctor blade when it is situated in a blade holder.

Abstract: A doctor blade system with clamping device is provided for clamping a doctor blade, for example, in a doctor blade chamber without using screws and without having to use tools. A clamping mechanism, preferably pneumatic, counteracts the clamping by actuation. By disposing a sectional rail between the clamping rail and the doctor beam, the sectional rail drawing the clamping rail and the beam together with a spring mechanism, the doctor blade is clamped between the clamping rail and the beam. In another embodiment, the clamping rail is designed as an angular section tipping about an edge.

Abstract: A universal ink cup for a pad printing machine. The universal ink cup includes a first cup having walls defining a reservoir for holding liquid. An engageable coupling is removably coupled to the first cup, for affixing the ink cup to the pad printing machine. The engageable coupling may include a second cup, with the first cup including walls defining a hole such that the engageable coupling can be inserted in the hole and affixed to the first cup.

Abstract: The invention concerns a pad-printing ink cup fitted with at least one magnet (10). The minimum of one magnet (10) may be positioned at different heights relative to the plane of the doctor edge (22), the magnetic force effective in the said plane depending on said heights.

Abstract: The present invention relates to an ink supply device and an ink key thereof and makes it possible to stabilize the action of the ink key and to save labor in cleaning of the ink key by preventing the ink from getting into a gap between the neighboring ink keys. A cover member hermetically covering the surfaces of a plurality of ink keys is mounted in an ink box to reduce an area where the ink keys are in direct contact with the ink and a groove is made on one or both of the sides of each of the plurality of neighboring ink keys covered by the cover member from the top surface of the ink key to the bottom surface thereof, and even if the ink leaks and gets into a gap between the ink keys because of capillary phenomenon, the groove prevents the ink from spreading the gap between the ink keys.

Abstract: A printing press ink scraping blade is disclosed. The ink scraping blade is of a unitary construction and includes a working end as well as a mounting end. The working end is preferably substantially thicker than the mounting end to provide substantially more material at the working end. As the scraping blade engages a scraping roller of a printing press, the blade is exposed to abrasive action and the additional material provided increases the serviceable life of the blade. To ensure that the blade maintains sufficient flexibility and deflection characteristics, the remainder or mounting end of the blade, is of a substantially reduced thickness. The blade may be manufactured from spring steel to further enhance flexibility.

Abstract: A detachable inking device for a flexographic printing machine, a manipulating device for removing and replacing the inking device, a cleaning device, and a repair station for refurbishing the inking device. The inking device itself is a chambered doctor blade (9) mounted on two lever-supports (13, 14) through which ink is supplied from a reservoir. The lever-supports are rigidly attached to a shaft (11) which is pivotable between the frames (34) of the flexographic printing machine. The chambered doctor blade has a body (25) made of light material, crossed at one of its ends by a tube (26) emerging from the bottom (28) of body (25), and at the other end by a tube (40) having its opening part (29) at level with the bottom (28) of the body (25). The latter rests on seals (38, 39) secured to the lever-supports (13, 14) to which are attached centering and fixing means (17, 18) allowing a quick loosening of the chambered doctor blade (9) without the help of any tool.

Abstract: A device for metering and equalizing an ink layer on the surface of a printing machine roller, in particular on the surface of an ink applicator roller in the inking unit of a printing machine, the surface being additionally wetted with dampening medium. The device contains at least two doctor blades which are arranged preferably at a short distance one behind the other in the direction of rotation of the roller and rest under pressure against the surface of the roller and of which a front doctor blade, with respect to the direction of rotation of the roller, has a doctor blade edge radius such that essentially only the dampening medium, but not the ink layer, can be wiped off from the surface of the roller by said front doctor blade, while a rear doctor blade, with respect to the direction of rotation of the roller, has, by comparison, a smaller doctor blade edge radius such that at least part of the ink layer which has remained on the surface of the roller can be wiped off.

Abstract: A self-adjusting blade for engagement with a moving work surface, comprising a steel strip elongated in a first direction between first and second sides, said strip having an edge section along said first side for contact with said work surface, and said edge section being hardened to a hardness exceeding that of the remaining part of said strip.

Abstract: A dual-doctor blade assembly that can accurately meter ink delivery to the anilox cells on the anilox roll of a flexographic printing system. The system utilizes a retractable dual-blade configuration in conjunction with an ink chamber and a gap between the lower doctor blade and the anilox roll. The entire configuration can be adjusted for anilox rolls of various diameters. The upper blade in this system contacts the anilox roll at a point after its rotation through the application tray and scrapes ink from the surface of the anilox roll directly into the ink chamber. As the chamber fills with ink, the hydraulic pressure created by the spinning of the anilox roll increases to a point where the anilox cells are filled to the appropriate volume. The gap created between the lower doctor blade and the anilox roll serves two functions.

Abstract: A universal ink cup for a pad printing machine. The universal ink cup includes a first cup having walls defining a reservoir for holding liquid. An engageable coupling is removably coupled to the first cup, for affixing the ink cup to the pad printing machine. The engageable coupling may include a second cup, with the first cup including walls defining a hole such that the engageable coupling can be inserted in the hole and affixed to the first cup.

Abstract: The invention relates to a doctor assembly in a paper machine, which is intended to clean, e.g., a roll, and which includes a surface against which a doctor blade is set, a blade support for supporting the doctor blade, a frame, a jointed bearing assembly, which supports the doctor blade and is itself supported from the frame, and which is parallel to the doctor blade, and extends essentially over the entire width of the roll, and loading devices between the blade support and the frame for turning the doctor blade in relation to the frame and for pressing the doctor blade against the surface with a selected pressure. Due to the continuous support, there is essentially no deflection in the doctor assembly, when it is attached by its frame directly to the structures of the paper machine.

Abstract: A doctor blade for direct contact with a ceramic roll surface. The doctor blade includes a strip of metallic carrier material, which, along one edge section is provided with a ceramic coating. The ceramic coating on the blade has a hardness ranging from approximately 850 to 950 microvickers, thereby substantially increasing wear resistance of the blade without substantially increasing wear on the ceramic roll surface for which the blade is adapted for use.

Abstract: An inking unit for a printing machine, having a metering system for printing ink, and equipment for conveying ink on a conveyor path between the metering system and a plate cylinder of a printing machine, includes a vacuum chamber for evaporating a dampening-solution portion from the printing ink.

Abstract: The side wall (5) for an ink fountain of a printing machine has two plates (11, 14) fixed some distance apart and an intermediate plate (13) having a front edge (13a) in the shape of an arc of a circle. This intermediate plate (3) is mounted between the plates in such a way that it can be shifted and tilted. The front edge of this plate contacts the circumference of an ink fountain roller (6) via springs (18, 19) acting on the intermediate plate. The wall has a slideway (10) in which the plates (11, 14, 13) are mounted. The slideway has a reinforced region (12) on one of its sides which is proximate the ink fountain roller (6). The side wall (5) thus more effectively seals an ink fountain against leakage. The blade at the bottom of the ink fountain is split into several adjacent sectors (111) that can be shifted so as to vary the distance between the edge (112) of the blade and the circumference of the ink fountain roller (6). The sectors (111) can be shifted in the plane of the blade, parallel to each other.

Abstract: Doctor blade systems for rotary press ink stations, which include a print cylinder and an ink supplier on a side of the print cylinder to deliver ink to the surface of the print cylinder, have an elongated blade holder extending parallel to the cylinder on one side of the cylinder. The holder mounts a doctor blade, which may be conventional, and a pre-doctor or prewipe blade between the doctor blade and the pan on the one side of the cylinder. The holder includes a first clamp to releasably hold the generally flat, elongated doctor blade in axial line contact with an axial length of the outer circumferential surface of the print cylinder and a second clamp below the first clamp to releasably hold a generally flat, elongated prewipe blade against the outer circumferential surface of the print cylinder below the line contact of the doctor blade so as to remove some ink from the length of the surface before that surface reaches the doctor blade.

Abstract: A beam structure (10) made of a composite for a pulp machine/paper machine/board machine or for a paper/board finishing device. The beam (10, 10a1, 10a2) is formed of a first curved part (12) and of a second straight part (13) joined thereto, to which second straight part (13) a doctoring, coating or measurement apparatus (110) is attached.

Abstract: The invention concerns a pad-printing ink cup fitted with at least one magnet (10). The minimum of one magnet (10) may be positioned at different heights relative to the plane of the doctor edge (22), the magnetic force effective in the said plane depending on said heights.

Abstract: A chambered doctor blade assembly which can be placed against a roller of an inking unit of a printing machine, in particular onto an engraved roller, has a chamber connected to the surface of the roller by means of an orifice through which printing ink can flow. The orifice can be closed and re-opened by means of a closing element which is arranged within the chamber and which can be brought into a closing position. When the closing element is in the closing position, printing ink can continue to flow through the chamber.

Abstract: A doctor blade device for the removal of dampening medium from a soft surface of an ink applicator roller in the inking unit of a printing machine, having at least one doctor blade placed against the surface of the roller and having an edge radius in the range of 2 mm to 10 mm.

Abstract: A doctor blade for wiping excess printing ink off the surface of a printing form (10) has a front section in the form of a leaf (3) which interacts with the surface of the printing form (10). In order to avoid wear or damage to the printing form surface as a result of the contact pressure exerted by the leaf (3) on the printing form surface, the leaf (3) is provided with a coating (5) over the entire doctor blade length. The coating (5) consists of lubricant or contains lubricant particles (8). As a result of the significant reduction in friction between the leaf (3) and the printing form surface, not only is the wear on the printing form surface reduced, but the wear on the doctor blade is also reduced, and its service life is extended.

Abstract: A doctor blade assembly having a flexible doctor blade holder consisting of a wider flexible carrier plate by means of which the assembly is mounted, a narrower flexible presser plate and a flexible wedge member held together with a plurality of ties. A replaceable doctor blade is formed of a strip of uniform thickness and is clamped together with a narrower back-up strip securely but releasably between the forward edges of the carrier plate and the presser plate. The wedge member is inserted between the rear edge of the presser plate and the carrier plate. The wedge member has a rear portion including a flange projecting away from the carrier plate both to permit manual manipulation of the wedge member and to divert liquid, such as ink, away from the carrier plate.

Abstract: A squeegee for use in screen printing, including a flexible portion, and one separation or two separations extending from a contact edge of the flexible portion for contact with a screen, toward a base portion of the squeegee, thereby at least partly separating the flexible portion, so that the flexible portion includes a first portion between the one separation and a lateral edge of the flexible portion, or between the two separations, and a second portion different from the first portion, and so that the first portion and the second portion are flexible independent of each other.

Abstract: An enclosed pressure gravure roll coating applicator, particularly designed for applying pressure sensitive films to web types substrates, and method of operating such coater. A downstream blade and an arcuately spaced upstream blade are positioned with respect to a roll to be coated. An intermediate gap-forming body between the blades forms a running gap with the surface of the roll to be coated. Substantially air free liquid coating is applied under pressure to an offrunning chamber adjacent the offrunning blade with excess coating flowing through the gap to an onrunning chamber adjacent the upstream blade. The pressure in the onrunning chamber is regulated at a relatively constant positive value sufficient to prevent air from entering the onrunning chamber past the upstream blade.

Abstract: There is disclosed a doctoring apparatus for doctoring a cylindrical rotating surface of a machine. The doctoring apparatus includes a blade carrier assembly for holding a blade for doctoring a cylindrical surface. The blade carrier assembly further includes at least one movable tenon. The blade carrier assembly slides across a supporting surface of a doctor back. The doctor back includes a mortise which is sized to loosely receive the tenon to permit the tenon to slide within the mortise as the remainder of the blade carrier assembly slides over the supporting surface of the doctor back. Once the blade carrier assembly is located in a position relative to the doctor back, an adjustment mechanism carried by the blade carrier moves the tenon into locking engagement with the mortise. This adjustment mechanism is a releasable securing mechanism which allows the tenon to move in and out of locking engagement.

Abstract: A support beam for at least one long working unit, notably of a paper machine or coater, includes several bundled, long profile elements forming in their entirety the support beam.

Abstract: Printing doctor having a doctor body and a coating of hard material which covers at least that end face of the doctor body which is intended to bear against a rotating cylinder. In order to provide the coating of hard material with a greater stability, before the coating of hard material is applied, the surface of the doctor body is provided, at least within the end face, with a multiplicity of recesses, the maximum diameters of which are in each case considerably smaller than the width of the end face. These maximum diameters expediently lie below 1/50 of the width of the end face, or between 0.1 and 10 .mu.m. The recesses are expediently produced by an ECM process.

Abstract: An attachment system for a silk screen printer includes an elongated support bar having a pair of offset holding heads with aligned openings formed therein. A pair of elongated blade elements are slidably held in aligned openings in the offset holding heads, and include open areas for releasably supporting first and second spaced-apart and angled squeegees.