Abstract: A squeegee device includes a squeegee that has a sliding contact portion in sliding contact with a screen mask, and that prints a solder on a circuit board through the screen mask, wherein an attack angle of the squeegee is adjustable. In the squeegee device, when adjusting the attack angle during a tooling change in which the type of circuit board is changed, positions of the sliding contact portion before and after adjustment substantially match.

Abstract: A fluorescence-containing material injection apparatus of the present invention includes a fluorescence-containing material temperature control section, a fluorescence-containing material stirring section, a fluorescence-containing material remaining amount sensor, and a fluorescence-containing material injection amount adjustment section, by which disproportion in the mixture ratio of contaminates in a fluorescence-containing material M is restrained. This makes it possible to evenly apply a fluorescence-containing material onto a semiconductor light emitting element.

Abstract: There is provided a screen printer capable of concurrently, efficiently subjecting a plurality of substrates, including different types of substrates, to printing operation. In a screen printer 2 that makes up an electronic component mounting line 1 and that prints electronic component bonding paste on a substrate, a substrate conveyance section 8 that conveys a substrate 5 forwardly or backwardly in a direction of conveyance of a substrate is disposed at an intermediate position between a first screen printing section 7A and a second screen printing section 7B arranged symmetrically with respect to a center line CL. It thereby becomes possible to adopt a variety of substrate conveyance forms, as required, such as return conveyance for returning the substrate 5 from a downstream machine to an upstream side of the screen printer 2 and bypass conveyance for letting the substrate sent from an upstream side pass through the screen printer, to thus be conveyed to a downstream machine.

Abstract: A stencil printer includes a frame, a stencil coupled to the frame, a substrate support coupled to the frame to support a substrate in a print position, and a print head, coupled to the frame, to deposit and print viscous material over the stencil. The print head includes a squeegee assembly having at least one squeegee blade and a squeegee blade movement mechanism configured to move the squeegee blade from a raised position in which the squeegee blade is spaced from stencil and a lowered position in which the squeegee blade engages and applies a force on the stencil. The print head further has a device to detect a first reference point associated with a first force of the squeegee blade against the stencil and a second reference point associated with a second force of the squeegee blade against the stencil when moving the squeegee blade to the lowered position in which the squeegee blade engages and applies a force on the stencil.

Abstract: A pressure-feedback-type squeegee module is provided, which includes a squeegee seat having a squeegee to contact a screen mesh of a screen, a pressurization part connecting to the squeegee seat to exert pressure on the squeegee seat, and at least two pressure induction modules configured at two sides of the squeegee seat to induce at least two pressure values transmitted when the squeegee contacts and depresses the screen mesh and to output the pressure values to a pressure control module. Based upon the received pressure values, the pressure control module will compute a proper way to adjust the pressurization part, so as to control depression pressure and pressure direction that the pressurization part acts on the squeegee seat.

Abstract: A screen printing machine includes a platen for supporting a substrate to be printed, a printing screen disposed above the platen, a squeegee to be moved across the printing screen in order to force an ink through the printing screen and onto the substrate, a conveyer device disposed below the platen, and a squeegee actuating device supported on the conveyer device, the squeegee actuating device includes a housing having a chamber for receiving one or more electromagnetic devices each of which include a coil having a compartment for receiving a core, and a magnet disposed above the core and secured to the core and the housing for being actuated by the core to selectively attract the squeegee to press onto the printing screen and to selectively release the squeegee.

Abstract: When a printed circuit board is inspected and determined to have an insufficient amount of printing of a print pattern, the printed board is returned to a screen-printing apparatus so that a new print pattern is formed so as to overlap a previous print pattern. In the re-printing, a raising speed of the printed board at a final stage of the board raising operation is rendered lower than in the previous screen printing so that the printed board is brought into contact with the underside of the screen mask more slowly.

Abstract: A control apparatus for multiplexing a single distributed control amplifier to control multiple axes of motion in a multi-axis machine. In one example, the control apparatus comprises a distributed control motor amplifier, a first motor constructed and arranged to provide movement along a first axis of motion, a second motor constructed and arranged to provide movement along a second axis of motion, a first relay having a switch coupled to the distributed control motor amplifier, a first contact coupled to the first motor, a second contact coupled to the second motor, and an input for receiving an actuation signal, wherein the relay is configured to be manipulated between a first state in which the switch is electrically connected to the first contact a second state in which the switch is electrically connected to the second contact, in response to the actuation signal.

Abstract: A method of conveying imprint material and a printing table for a flatbed printing machine are described. The method of conveying imprint material, particularly solar cell wafers, in and out of a processing area of a flatbed printing machine includes the steps of moving the imprint material by means of a conveyor belt on a first conveyor belt section into the processing area, processing the imprint material and further moving the imprint material on the first conveyor belt section out of the processing area. An automatic checking of the first conveyor belt section for soiling or damage takes place and, as a function of the checking result, a moving-back of the first conveyor belt section into the processing area or a moving of a second conveyor belt section into the processing area takes place.

Abstract: This machine for marking hollow parts comprises a marking member designed to be on contact in at least one line of tangency with a hollow part for it to be marked, and a first and a second mandrel capable of supporting respectively a first part to be marked and a second part previously marked. A control camera is placed at a focal length from the marked surface of the second part. The first mandrel is capable of moving the first part relative to the marking member and the movement of the second mandrel is slaved and identical to that of the first mandrel. The camera is capable of moving parallel to, and in synchronism with, the line of tangency between the marking member and the first part.

Abstract: A stencil printer includes a frame, a stencil coupled to the frame, a substrate support coupled to the frame to support a substrate in a print position, and a print head, coupled to the frame, to deposit and print viscous material over the stencil. The print head includes a squeegee assembly having at least one squeegee blade and a squeegee blade movement mechanism configured to move the squeegee blade from a raised position in which the squeegee blade is spaced from stencil and a lowered position in which the squeegee blade engages and applies a force on the stencil. The print head further has a device to detect a first reference point associated with a first force of the squeegee blade against the stencil and a second reference point associated with a second force of the squeegee blade against the stencil when moving the squeegee blade to the lowered position in which the squeegee blade engages and applies a force on the stencil.

Abstract: A screen printing apparatus includes: a main squeegee that includes a pair of end portions in a width direction and prints, by sliding in a direction orthogonal to the width direction on an upper surface of a screen that is supplied with a paste-like material and on which a hole is formed, the paste-like material on an upper surface of a printing object provided on a lower surface side of the screen via the hole; and a pair of auxiliary squeegees each including a first end portion provided more on an outer side than the end portion in the width direction and a second end portion provided more on an inner side than the end portion in the width direction, the pair of auxiliary squeegees being tilted a predetermined angle with respect to the main squeegee on a rear side of the main squeegee in the sliding direction.

Abstract: A screen printing device configured to print a printing paste on a printed board, the printing paste being applied on a screen printing plate where openings corresponding to a pattern to be printed are formed, the screen printing device includes a first squeegee advanced and pressed downward so that the printing paste is pushed on the printed board corresponding to the openings of the screen printing plate; and a second squeegee situated in the vicinity of the rear of the first squeegee, the second squeegee being configured to provide pressure forward and downward, the pressure having properties different from properties of a pressure provided by the first squeegee, wherein a printing operation by the second squeegee is performed right after a printing operation by the first squeegee.

Abstract: A printing apparatus includes a feed-out unit for feeding out an elongated base material which is wound up in a roll, a printing unit for printing a liquid resist onto the elongated base material that is fed out of the feed-out unit, a wind-up unit for winding up the elongated base material on which the liquid resist is printed by the printing unit into a roll, and a suction unit positioned between the printing unit and the wind-up unit in a transport direction of the elongated base material for sucking up a solvent in the liquid resist.

Abstract: A screen printing machine and its locking device are disclosed. The screen printing device comprises a printing frame for holding printing stocks, a screen frame for supporting a screen and a squeegee; and at least one locking device including a first electromagnetic member mounted on one of the printing frame and the screen frame and connected to a power source and an attracted member mounted on the other one of the printing frame and the screen frame. When the screen frame is closed to the printing frame, the power source supplies power to the first electromagnetic member to enable the first electromagnetic member to attract the attracted member; when the printing is finished, the power source is turned off which makes the attraction of the first electromagnetic member to the attracted member disappear, and the printing frame and the screen frame are unlocked.

Abstract: A printing device, a production unit and a production method of electronic parts suitable for production of precise electronic parts are provided. A squeegee is attached to a rotating machine, and is autorotated and self-driven, and moreover, a printing pressure is generated in the squeegee, and resin is strongly filled, thereby achieving a print having a precision-shape. Further, with a perforated plate as a boundary, upper and lower chambers are provided so as to control a pressure, thereby performing cutting and dispensing of the resin and achieving a print having a precision-shape. This method is applied to the packaging of electronic parts.

Abstract: Disclosed is a squeeze for a screen printer. The present invention provides a squeeze for a screen printer, which coats a printed circuit board with an adhesive paste while moving parallel over a metal mask on the printed circuit board, the printed circuit board being open through an opening of the metal mask, the squeeze including a solvent storage unit for storing solvents; and solvent discharging holes for discharging the solvents, stored in the solvent storage unit, to an adhesive paste. Accordingly, the squeeze for a screen printer of the present invention may be useful to prevent a dog ear phenomenon, namely that an adhesive paste layer is asymmetrically formed in an indented manner, by controlling a viscosity of an adhesive paste by discharging a solvent onto an adhesive paste layer that comes in contact with the squeeze when the adhesive paste layer is formed in the printed circuit board.

Abstract: A screen printing head which, in a printing operation, is displaceable in a first direction over a surface of a workpiece to print deposits of a print medium on the workpiece, the screen printing head comprising: a print head assembly comprising a print unit comprising a main body including a print medium, cavity, which in use contains print medium, and a delivery aperture, which is in fluid communication with the print medium cavity and through which print medium is in use delivered from the print medium cavity to the surface of the workpiece, and a rotatable unit which is disposed in the print medium cavity of the main body and rotatable to displace print medium as contained in the print medium cavity; and a drive unit for rotating the rotatable unit such as to displace print medium as contained in the print medium cavity, wherein the drive unit is operative to rotate the rotatable unit to apply a force to the print medium at the delivery aperture in the main body in a second direction which is opposite to

Abstract: A screen printing system includes a screen made of a porous material and an adjustable variable pressure squeegee having a squeegee blade. The squeegee blade has a first edge for contacting the screen and pushing an ink medium deposited on the screen through a print area of the screen. The squeegee blade has a second edge retained in a holder. The holder has a compliant member configured to distribute a downward force applied to a point on the compliant member along a length of the squeegee blade in order to maintain contact between the first edge and the screen along the length of the squeegee blade.

Abstract: One embodiment of this invention discloses a silk screening device which includes an integrated quartz flash unit. The invention improves upon prior art systems and relates to a system whereby both a silk screen squeegee unit and a quartz flash unit are slidably mounted on a common set of rails, in order to allow each to be easily placed and removed from the silk screening platform.

Abstract: Controlled depositing of a printing material on a substrate is provided. A stencil is disposed adjacent to the substrate. The stencil includes a number of apertures to allow printing material to pass therethrough. Printing material is deposited onto and spread across the stencil with a squeegee blade. To increase the volume of printing material over a set of selected apertures, the squeegee blade includes a printing edge having a profile feature.

Abstract: A silkscreen printer machine (8) includes: a support structure (48); and at least one printing station (54) secured to the structure (48) and including at least one screen support (68) presenting a reception area adapted to receive a screen texture (70) having a pattern for printing placed thereon. The screen support (68) is carried by at least three support elements (78) secured to the structure (48), the support elements (78) not being in alignment and being positioned on either side of the reception area (69). The invention also provides associated printer apparatus.

Abstract: A screen printing apparatus has a base portion, and annular rail, an arm, and a first loading position. The base portion has a pair of opposing end sections separated by an intermediate section. The annular rail circumscribes a portion of the base portion. The arm radiates outwardly from the annular rail. The first loading position is located radially inwardly of the annular rail.

Abstract: A screen printing method and a printing device thereof are revealed. The printing device consists of a printing table, a screen and a printing head. The printing head includes at least one driving member that moves upward and downward so as to drive at least one squeegee moving upward and downward. By precise control of relative distance between the screen and a printed substrate on a surface of the printing table, the squeegee applies a constant pressure to the screen for printing under the condition that the screen doesn't contact with the printed substrate. As to the printed substrate made from fragile and compact materials such as silicon wafer, the thickness and evenness of the ink are precisely controlled.

Abstract: The screen printer machine includes: a base assembly; at least one print station having a support suitable for receiving a silk screen; and elements for moving the support relative to the base assembly. The elements for moving the support include: three coupling assemblies each provided with a moving member that is movable relative to the base assembly, sliding-connection elements for the moving member, and elements for moving the moving member; and members for controlling the drive elements for moving the three assemblies independently. The moving member of each coupling assembly is connected to the support by the sliding-connection elements along a direction that is fixed relative to the support.

Abstract: A printing system including a squeegee and a blade assembly. The system further includes moving paste retainers and at least one cross elements. The cross elements include one or more cross wires to affect a wiping action of the blade during a printing cycle of the squeegee. The motion of the paste retainers and cross elements created by pivoting paste retainers. The wire motion is set on an arc at a fixed radius from a pivot point, and arc traversing a significant part of a front face of the squeegee inside of solder paste or viscous material mass. The cross elements include multiple cross wires or thin blades to affect more shearing action with less motion.

Abstract: The present invention relates to a segmented squeegee for depositing a medium onto a surface, such as depositing solder paste onto a printed wiring board. The segmented squeegee may include a plurality of independent squeegee segments or elements, a support structure and a plurality of independent connections or linkages connecting the squeegee segments to the support structure. The segmented squeegee may be used in connection with a conventional stencil such that the independent linkages and the squeegee segments may be structured and arranged to maintain substantial contact between the stencil and the printed wiring board.

Abstract: An exemplary screen printing device includes a blade, a rotatable connecting element, a lower baffle, and an adjusting element. The rotatable connecting element is fixed to the blade. The lower baffle rotatably connects with the rotatable connecting element. The lower baffle and the blade cooperatively define a chamber for receiving ink therebetween. The adjusting element is connected to the rotatable connecting element. The adjusting element is capable of making the lower baffle rotate thereby opening a bottom of the chamber.

Abstract: [Problems] To provide a squeegee for a printing device that achieves a satisfactory scraping ability and is readily fabricated at low costs. [Means for Solving the Problems] A squeegee for a printing device applies paste on a stencil 7 onto a substrate W by spreading the paste by sliding a tip end 22a along a surface of the stencil 7 disposed on the substrate W. The squeegee is formed of an expanded material made of iron and steel, and the tip end 22a is made thinner by applying a machining process to one surface alone. A thickness Ta of the tip end 22a made thinner is set to 40 to 120 ?m and a length La thereof is set to 0.5 mm or greater.

Abstract: This invention relates to a combination silk screen and heat press apparatus, which is configured such that silk screening and heat pressing operations may be performed on an article, such as a garment, using the same apparatus without the need to remove or reposition the article.

Abstract: A screen printing device configured to print a printing paste on a printed board, the printing paste being applied on a screen printing plate where openings corresponding to a pattern to be printed are formed, the screen printing device includes a first squeegee advanced and pressed downward so that the printing paste is pushed on the printed board corresponding to the openings of the screen printing plate; and a second squeegee situated in the vicinity of the rear of the first squeegee, the second squeegee being configured to provide pressure forward and downward, the pressure having properties different from properties of a pressure provided by the first squeegee, wherein a printing operation by the second squeegee is performed right after a printing operation by the first squeegee.

Abstract: A stencil printer for printing viscous material on a substrate includes a frame, a stencil coupled to the frame, and a print head, coupled for the frame, to deposit and print viscous material over the stencil. The stencil printer further includes a substrate support to support a substrate in a print position and a substrate clamping assembly to clamp the substrate in the print position. In a certain embodiment, the substrate clamping assembly includes a pair of rail members coupled to the frame. The rail members are adapted to engage opposite edges of the substrate. The substrate clamping assembly further includes a pair of foils, one for each rail member, with each foil being releasably secured to the rail member in a position so that the foil overlies the substrate. The substrate clamping assembly also includes a pair of clamping members, one for each rail member and foil, to releasably secure the foil in place on the rail member.

Abstract: A printing installation for printing on curved surfaces, includes a squeegee, a printing screen maintained in a screen frame, and a drive for moving the squeegee. The screen frame, on at least one side thereof, is flexible in at least some sections thereof. The screen printing device is used, for example, for printing on curved vehicle window panes.

Abstract: Squeegee assembly for a screen printing machine with a printing table, wherein the squeegee assembly has at least one squeegee, one squeegee holder and at least one support displaceable across the printing table, wherein the squeegee is held on the support by means of the squeegee holder and can be pressed against the printing table by pressure cylinders, characterized in that the support has a U-shaped profile, and at least the cylinder sections of the pressure cylinders are accommodated within the U-shaped profile.

Abstract: A liquid supply apparatus which can supply a liquid from a liquid supply cylinder to a sheet, held on an impression cylinder, satisfactorily at a low cost even at a high speed is provided.

Abstract: A printing device, a production unit and a production method of electronic parts suitable for production of precise electronic parts are provided. A squeegee is attached to a rotating machine, and is autorotated and self-driven, and moreover, a printing pressure is generated in the squeegee, and resin is strongly filled, thereby achieving a print having a precision-shape. Further, with a perforated plate as a boundary, upper and lower chambers are provided so as to control a pressure, thereby performing cutting and dispensing of the resin and achieving a print having a precision-shape. This method is applied to the packaging of electronic parts.

Abstract: A stencil printer is provided for depositing solder paste onto a surface of an electronic substrate. The stencil printer includes a frame and a stencil coupled to the frame. The stencil has a plurality of apertures formed therein. The stencil printer further includes a dispenser coupled to the frame. The stencil and the dispenser are adapted to deposit solder paste onto the electronic substrate. The stencil printer further includes an imaging system constructed and arranged to capture an image of the electronic substrate. The imaging system includes a camera assembly, an on-axis illumination assembly adapted to generate light substantially along a first axis generally perpendicular to the surface of the electronic substrate, and an off-axis illumination assembly adapted to generate rays of light substantially along a second axis extending at an angle with respect to the first axis. A controller is coupled to the imaging system to control movement of the imaging system to capture an image.

Abstract: In supply of feedback data to improve a positional deviation quantity and a deviation state of a soldering paste printed on individual substrates held on the carrier, a plurality of average values of individual positional deviation for each of the individual substrates are obtained, and then, if the deviation value ?M indicating a difference between the maximum value Mmax and the minimum value Mmin of the plurality of average values M of individual positional deviation is less than or equal to the tolerance value ?(t), an intermediate value of the maximum value Mmax and the minimum value Mmin is obtained, and the positioning parameters of the mask plate and the carrier are corrected based on the intermediate value (Mmax+Mmin)/2.

Abstract: A print arm for a screen printing machine of the type having radial print arms and radial pallet arms that rotate relative to the print arms the print arms incorporating a detachable print carriage drive assembly from which the print carriage is suspended the print carriage drive assembly incorporation an electrically driven belt to reciprocate the print carriage and the belt path is horizontal. In one embodiment a print assembly plate is provided as the base for the print carriage support assembly so that all the components are mounted to the plate and the plate can be easily attachable to the print arm. In a second embodiment a channel member is used in conjunction with three mounting plates instead of the one assembly plate.

Abstract: A stencil printer includes a frame, a stencil coupled to the frame, a substrate support coupled to the frame to support a substrate in a print position, and a print head, coupled to the frame, to deposit and print viscous material over the stencil. The print head includes a squeegee assembly having at least one squeegee blade and a squeegee blade movement mechanism configured to move the squeegee blade from a raised position in which the squeegee blade is spaced from stencil and a lowered position in which the squeegee blade engages and applies a force on the stencil. The print head further has a device to detect a first reference point associated with a first force of the squeegee blade against the stencil and a second reference point associated with a second force of the squeegee blade against the stencil when moving the squeegee blade to the lowered position in which the squeegee blade engages and applies a force on the stencil.

Abstract: A cleaning method for the screen stencil of a silk-screen printing machine. According to the method, prior to an intermediate printing process designed to clean the screen stencil, the underside of the stencil is wetted with a cleaning agent that dissolves dye. An intermediate printing device includes an intermediate printing roll that can be displaced back and forth. A rotating roll that is immersed in a cleaning bath is situated at the front end of the intermediate printing roll. The rotating roll can be brought into contact with the underside of the screen stencil prior to the intermediate printing process by means of a pivoting device.

Abstract: A dummy work (DW: a work for printing a reference necessary for subsequent printing) is moved to a printing position while the dummy work is fixed to a work alignment mechanism 2, and solder printing is made. The printed dummy work is then returned to the work alignment position and its image is taken by image processing cameras 7 and an image of position coordinates of a solder bump specified for alignment is stored. Positioning of subsequent works W is conducted on the basis of the image of the dummy work stored and solder printing of the works is subsequently made at the printing position.

Abstract: An adjustable variable pressure squeegee for screen printing includes a holder having a compliant member coupled to a retainer member and a squeegee blade having an edge coupled to the retainer member.

Abstract: An apparatus for printing designs or images on a small or constrained area of a substrate. The apparatus includes a screen assembly, a print head, and a guide assembly. A squeegee and a flood bar of the print head are positioned at a predetermined angles and an actuator facilitates switching positions of the flood bar and squeegee through actuation of a toggle mechanism during the print cycle.

Abstract: A printing device, a production unit and a production method of electronic parts suitable for production of precise electronic parts are provided. A squeegee is attached to a rotating machine, and is autorotated and self-driven, and moreover, a printing pressure is generated in the squeegee, and resin is strongly filled, thereby achieving a print having a precision-shape. Further, with a perforated plate as a boundary, upper and lower chambers are provided so as to control a pressure, thereby performing cutting and dispensing of the resin and achieving a print having a precision-shape. This method is applied to the packaging of electronic parts.

Abstract: A screen printer having a resolution reproducibility equivalent to that of the photography method, a uniform dimension accuracy, a high aspect ratio (ratio of the line height to the line width), an easy productivity, and a low simple cost. The screen printer, or a screen printing means, comprises drive means for driving a support supporting a screen plate in a vertical direction, the support supporting the screen plate movable by the drive means in a vertical direction, a print holding stage for supporting an object to be printed at a place where the object is brought into contact with a printing surface, and a squeegee of a squeegee unit for transferring a paint onto the object through a paint passing portion of the screen plate by daubing the paint on the screen plate.

Abstract: Disclosed is a screen printing apparatus for screen printing the cream solder including a squeegee assembly (30) provided with comb blade members (35) and with solder leakage prohibiting guides (36). The comb blade members partition a cream solder (52) substantially vertically with respect to a contact slide surface between the squeegee (33) and the screen (21) to prevent the cream solder from passing in fluidity on the screen (21) in a direction substantially at right angles to the sliding direction as the squeegee sweeps and as the cream solder becomes twisted between the screen and the squeegee. The solder leakage prohibiting guides (36) prevent the cream solder from leaking to outside a printing sphere determined by the squeegee width.

Abstract: A rolling marker assembly enables a user to mark serially-presented, repeating patterns upon a marking surface. The marker assembly comprises an outer casing and a marking caster assembly. The caster assembly comprises a marker carriage and a rotating pen assembly. The marker carriage comprises a casing attachment member and certain pen assembly-receiving structure. The pen assembly comprises an inner pen core, a plurality of ink-applying tiles, and a marker rotation axis. Each tile is adapted for receiving and applying ink. The pen assembly is rotatably received by the marker carriage via the pen assembly-receiving structure. The caster assembly is rotatably attached to the casing. The ink-applying tiles comprise raised patterns. The casing is manually traceable adjacent a marking surface such that the raised patterns are engageable upon the marking surface for applying ink thereto.

Abstract: The invention provides a technique which can improve a printing precision of a screen printing. A fixing mechanism for fixing a screen mask of a printer to a mask holder is structured such as to include a first fixing mechanism fixing sides of four sides of a frame existing in an outer peripheral edge of the screen mask arranged along an arrow corresponding to a sliding direction of a squeegee, and the mask holder, and a second fixing mechanism fixing a side of four sides of the frame arranged along a direction intersecting the arrow and in an opposite direction to the arrow as seen from the slide starting position, and the mask holder.

Abstract: The present invention is directed to an improvement to the current method of printing test sensors using a continuous web of substrate material. The improved method includes incorporating a means of retaining the high water content of the enzyme print material by maintaining relative humidity levels around the enzyme print station. More particularly, the method according to the present invention involves a method wherein said air in said laminar flow has a relative humidity of approximately 91%.