Abstract: A screen printing line with higher utility is provided. In a screen printing line including a plurality of screen printing machines and a plurality of shuttle conveyors each provided between any adjacent two of the plurality of screen printing machines, each of the screen printing machines includes: a main body; a front conveyor having a substrate support device; a rear conveyor configured to allow passage of a circuit substrate; a printing device configured to carry out screen printing on the circuit substrate supported by the substrate support device. Also, each of the plurality of shuttle conveyors includes a movable conveyor movable between a position continuous to the front conveyor and a position continuous to the rear conveyor.

Abstract: A holding mechanism 40 is made up of a shaft support 44 that is provided while joined to a joint and that has a vertically-oriented pivot 44a, a shaft member 45 that horizontally extends from the shaft support 44 and that is turnable around the pivot 44a, and a fitting section 36 that is formed in a squeegee unit 16 and to which the shaft member 45 is removably fitted. Thereby, the entirety of the squeegee unit 16 becomes removably attachable by only moving the squeegee unit 16 in a horizontal direction.

Abstract: A screen printing apparatus includes a printing execution unit that performs screen printing on a substrate. At least one substrate support table that is provided movably along a specific direction orthogonal to the conveying direction. A table drive mechanism that moves the substrate support table at least between substrate entry and exit positions along a specific direction. The substrate entry and exit positions are set asymmetrically with respect to the specific direction. A printing execution unit drive mechanism is provided to drive the printing execution unit along the specific direction. A control unit is provided to control the printing execution unit drive mechanism so that the printing execution unit is driven to set the printing position on a substrate conveying path needed for the substrate support table to move from the substrate entry to the substrate exit.

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: Prior to a mark imaging process executed for the purpose of detecting a position of recognition marks for positioning the substrate and the mask, an optical axis calibration processing process of detecting a horizontal relative position between imaging optical axes, and a surface correction data creation processing process of detecting a local positional deviation of the imaging optical axes, which is caused by the travel of the imaging unit, are executed. Before starting production, a production pre-start precision evaluation process for evaluating a substrate positioning precision is executed by using a verification substrate and a verification mask, and after starting the production, a production post-start precision evaluation process for evaluating a substrate positioning precision after starting the production is executed by using a commercial production substrate and a commercial production mask.

Abstract: The screen printing apparatus includes two screen printers 11A and 11B each including a substrate introduction portion 12 by which a substrate 4 is introduced from the upstream side of the component mounting line 3, a printing portion 13 which performs a screen printing to the introduced substrate 4, a substrate discharge portion 14 by which the substrate 4 subjected to the screen printing is discharged to the downstream side, and a substrate moving stage 15 which receives the introduced substrate 4 so as to position the substrate 4 with respect to the printing portion 13 and to move the substrate 4 subjected to the screen printing to the substrate discharge portion 14. The two substrate introduction portions 12, the two printing portions 13, and the two substrate discharge portions 14 are arranged symmetrically to each other with respect to a perpendicular symmetrical plane S extending in a transportation direction of the substrate 4 in the component mounting line 3, respectively.

Abstract: Method for printing on a wafer (1) by screen-printing, characterized in that it comprises the following steps: producing at least two first test-patterns (5a-5d) on the surface (4) of the wafer (1); printing at least four second test-patterns (6a-6d), distinct from the at least two first test-patterns (5a-5d), during printing on the surface (4) of the wafer (1) by screen-printing; measuring the actual distance obtained on the surface (4) of the wafer (1) between the first test-patterns (5a-5d) and the second test-patterns (6a-6d); comparing this actual distance with a theoretical distance in order to deduce therefrom the offset of the screen-printing screen (25) of the printing.

Abstract: The present invention is directed to improved screen printing squeegee blades, which include a first end, a second end, a top portion for receipt by a blade holder, a bottom portion adapted for contacting the screen of a screen printing press along at least one printing edge, a front face, a back surface, and a buckle control channel formed in either the front face or the back surface.

Abstract: A screen printing apparatus in which two printing units are provided in a production line which transports boards from a single board exit position set on a downstream side in a conveyance direction. One printing unit being disposed is available for set-up tasks while the other printing unit is working. Since set-up tasks can be conducted in one printing unit while the other printing unit is working, then it is possible to improve through-put dramatically even in cases where small-volume diverse-component production is carried out in a single lane.

Abstract: It is an objective to provide a screen print system and a method for cleaning a mask of the screen print system that enable sufficient cleaning of the mask used for subjecting a cavity substrate to screen printing. A mask contact area R of a paper member 42 is brought into contact with a lower surface of one of convex portions 13t of a first mask 13a, thereby removing paste Pst adhering to the lower surface. Subsequently, the paper member 42 is winded up before the paper member 42 contacts the next convex portion 13t to be subjected to removal of the paste Pst, thereby updating the mask contact area R.

Abstract: A screen printing apparatus and method for printing deposits of a print medium on workpieces, the apparatus comprising: a frame support unit for supporting a printing screen unit which comprises a screen sheet which includes at least first and second patterns of print apertures; a workpiece support unit; a print head unit; and at least one screen cleaning unit; wherein the at least one screen cleaning unit and the print head unit are operated in parallel, whereby, when the printing screen unit is in the first printing position, the at least one screen cleaning unit cleans the underside of the screen sheet at a location corresponding to one of the first and second sets of print apertures and the print head unit prints print medium onto workpieces through the other of the first and second sets of print apertures.

Abstract: A screen printing apparatus including two screen printers, each including a substrate introduction portion by which a substrate is introduced from an upstream side of a component mounting line, a printing portion which performs a screen printing to the introduced substrate, a substrate discharge portion by which the substrate is discharged to a downstream side, and a substrate moving stage which receives the substrate to position the substrate with respect to the printing portion and to move the substrate to the substrate discharge portion. The two substrate introduction portions, the two printing portions, and the two substrate discharge portions are arranged symmetrically to each other with respect to a perpendicular symmetrical plane extending in a transportation direction of the substrate in the component mounting line, respectively. Each printing portion is provided at a position further from the perpendicular symmetrical plane than the substrate discharge portion.

Abstract: A combination stencil printer and dispenser 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. In one embodiment, the combination stencil printer and dispenser further includes a cleaning assembly coupled to the frame to wipe excess viscous material from a bottom surface of the stencil. The combination stencil printer and dispenser further includes a dispenser mounted on the cleaning assembly to dispense viscous material on the substrate when the substrate is in the print position. In other embodiments, the dispenser can be mounted on a movable stencil or on an independent gantry provided within the combination stencil printer and dispenser.

Abstract: A scraper device is applied to a solder paste printer for scraping solder paste on a surface of a stencil. The scraper device comprises a supporting structure, a scraper fixed to the supporting structure, two blocking members positioned at opposite ends of the scraper respectively and coupled to the supporting structure, and two adjusting structures moveably mount the two blocking members to the supporting structure correspondingly. When the scraper scrapes the solder paste, the scraper and the two blocking members are slid on the surface of the stencil, the adjusting structure adjusts a friction between each blocking member and the surface to a predetermined level.

Abstract: The inside of a housing of a printer device is cooled by the air from a ventilation port and, consequently, the temperature of solder SP on a mask surface supported by a mask holding frame inside the housing can be kept low. Moreover, provided is a mask cover for blocking the air flow from the ventilation port toward the mask, and the drying of the solder SP caused by the wind from the ventilation port is thereby inhibited as a result of the wind from the ventilation port not coming into contact with the solder SP on the mask surface. In this way, the solder SP is cooled while inhibiting the drying of the solder SP and, consequently, it is possible to appropriately inhibit the change in viscosity of the solder SP, and favorable printing can be realized.

Abstract: In screen printing on such printing targets as an upper surface of a substrate and a bottom surface of a recess portion which is opened to the upper surface, there are provided a screen printing apparatus and a screen printing method by which printing work can be executed with good efficiency while ensuring a good printing quality.

Abstract: A combination stencil printer and dispenser 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 combination stencil printer and dispenser further includes a dispenser mounted on an independent gantry to dispense viscous material on the substrate when the substrate is in the print position. In other embodiments, the dispenser can be mounted on a stencil wiper assembly or a movable stencil provided within the combination stencil printer and dispenser.

Abstract: A combination stencil printer and dispenser includes a frame, a movable 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 combination stencil printer and dispenser further includes a dispenser mounted on the movable stencil to dispense viscous material on the substrate when the substrate is in the print position. In other embodiments, the dispenser can be mounted on a stencil wiper or on an independent gantry provided within the combination stencil printer and dispenser.

Abstract: Screen-printing system comprising a metal stencil (12), and a cloth (15) fixed to the entire periphery of said metal stencil (12) to form a trampoline assembly, characterized in that the cloth (15) fixed to the metal stencil (12) has at least one free end, in order to decrease or prevent deformation under the effect of a doctor blade (20).

Abstract: Provided is a screen printer including a main body in which an operation region and at least one introduction and extraction portion are formed, wherein the operation region includes an installation position of a stencil mask therein, and, through the at least one introduction and extraction portion, the stencil mask is introduced into the operation region and is extracted from the operation region to an outside of the main body; and a conveyance unit which conveys the stencil mask introduced into and disposed at the operation region to the at least one introduction and extraction portion when the stencil mask is replaced by a new stencil mask introduced through the at least one introduction and extraction portion, and conveys the new stencil mask to the operation region.

Abstract: A method of depositing viscous material on a substrate includes positioning the substrate in a print position, performing a print operation on the substrate with a print head and a stencil to deposit viscous material on the substrate, and inspecting the substrate with a vision system to detect a defect with the deposit of viscous material on the substrate. The method further includes, in the event of a defect, re-working the substrate by depositing viscous material on the substrate with a dispenser attached to a cleaning assembly, the stencil, or an independent gantry to correct the defect.

Abstract: The present invention provides a screen printing apparatus and screen printing method which, in screen printing that is to be performed on the upper surface of a circuit board, and the bottom surfaces of recess openings in the upper surface, can efficiently perform a printing work while ensuring an excellent printing quality. In a screen printing apparatus which prints a paste for bonding an electronic component on an upper surface and a bottom-surface of a recess, a printing apparatus 2(1) and a printing apparatus 2(2) which sequentially 10 print the paste in two steps on the circuit board are placed in series. The printing apparatus 2(1) on the upstream side includes a bottom-surface printing mask which is provided in correspondence with the bottom surface of the recess, and a closed squeegee mechanism 36A which butts against and slides over an upper surface of the bottom-surface printing mask to 15 pressurize and supply the paste.

Abstract: A device (1) for printing an impression by silk screen printing on at least one object (3), comprising of: a chassis (27); an object holder module (5) being movable relative to the chassis along a direction of pressing (Oz); a print head (7) including a screen holder module (29) and a squeegee holder module (31), the print head being movable relative to the chassis between an operating position close to the object holder module, and a maintenance position away from the object holder module, and an actuator (8) having a first part (125) and a second part (127) that is movable relative to the first part (125), the actuator (8) being adapted, in a first mode of operation, to be supported on the chassis by the first part and capable of moving the print head from the operating position to the maintenance position by a movement of the second part.

Abstract: A device for printing an impression by silk screen printing on at least one object, comprising of: a chassis; a screen holder module for holding a screen; and a squegee holder module (9) for holding a squegee (35) that is designed for scraping over the screen along a direction of scraping.

Abstract: A printing operation is repeatedly performed with respect to one substrate 2, the printing operation including the step of loading the substrate 2 (the step ST1), then contacting an upper surface of the substrate 2 with a mask 13 (the step ST4), reciprocating a squeegeeing operation to slide squeegees 33b on the mask 13 in contact with the substrate 2 to transfer a paste Pt on the mask 13 to the substrate 2 (the step ST7 and the step ST8), separating the substrate 2 from the mask 13 for a snap off (the step ST9), and while unloading the substrate 2 (the step ST11), performing mask cleaning to remove the paste Pt that is adhered to a lower surface of the mask 13 (the step ST12).

Abstract: A challenge to be met by the present invention is to provide a screen printer arranged so as to be able to readily perform both replacement of squeegees and operation for filling a paste feed syringe with paste. A paste feed syringe (14) is configured so as to be able to change its position between a paste feed attitude having an imaginary extension within a vertical plane at an oblique angle such that a nozzle (14a) provided at a lower end of the paste feed syringe comes to a position immediately below squeegees (15) and a storage attitude which is turned from the paste feed attitude through about 90 degrees around an axial line (41).

Abstract: There is provided a screen printing apparatus and a screen printing method which can implement printing work with good efficiency while securing a good printing quality in screen printing intended for an upper surface of a substrate and a bottom surface of a recess portion which is opened in the upper surface.

Abstract: A screen printing device is disclosed. The screen printing device includes a screen printer workstation having a work path. The work path has an input end, an output end, and a conveyor for transporting a workpiece between the input end and the output end. A stencil assembly is adapted to engage the workpiece as the workpiece is transported between the input end and the output end. The stencil assembly includes a stencil having an endless loop. A method of applying a substance to a workpiece using an endless loop stencil is also disclosed.

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 screen printing apparatus includes a screen moving mechanism and a controller. The screen moving mechanism is configured to move a screen including a patterned hole, the patterned hole being used for printing a paste-like material on a printing substrate. The controller is configured to control the screen moving mechanism to move the screen to a position corresponding to a size of the printing substrate in accordance with a change in size of the printing substrate.

Abstract: In a screen printing apparatus including: an impression cylinder that receives a sheet from a transfer cylinder located upstream in the sheet transport direction through a sheet gripping device and transports the sheet held in the sheet gripping device; and a rotary screen cylinder that is in contact with the impression cylinder and performs screen printing for the sheet held by the impression cylinder, the transfer cylinder is located above the impression cylinder, and the rotary screen cylinder is located to the side of the impression cylinder so that ink, varnish, or the like accumulates in a squeegee portion including a squeegee shaft, a squeegee, and the like in the rotary screen cylinder.

Abstract: In an embodiment of the present invention, a squeegee blade holder is provided. The holder includes a first side member, a second side member, and a pivot portion between the first and second side members. The holder also includes a separator between the first and second side members for maintaining compression of the side members against the squeegee blade. In another embodiment of the present invention, a method of holding a squeegee blade in a holder is provided. The method includes the steps of providing a first holder side, and providing a second holder side. The method further includes compressing the first and second holder sides against the squeegee blade, and maintaining compression of the first and second holder sides against the squeegee blade.

Abstract: An object of the invention to provide a screen printing machine allows, during maintenance work for one printing device, the other printing device to continue its screen printing work, and a method for controlling an inside temperature of a screen printing machine. A space surrounded by a base (12) and a cover member (11) is divided into two portions by a partition member (14), and two printing devices (13) are accommodated in two working compartments (15), respectively, which are defined by the base (12), the cover member (11) and the partition member (14), whereby temperature-controlled air is blown into each of the working compartments (15) via an air pipe (71) which branches into two air vents (72) opened to the respective working compartments (15).

Abstract: A screen printing machine including: a screen mask detachably mounted to a mask mounting area set in advance; a squeegee, arranged above the screen mask mounted to the mask mounting area, that reciprocates relative to the screen mask in a Y-axis direction (a squeegee-movement direction); and scraping member (144) that comes into sliding contact with the squeegee upon suspension of printing and scraping off applying material adhered to the squeegee.

Abstract: A screen printing machine including: a screen mask 1 detachably mounted to a mask mounting area set in advance; a squeegee, which is arranged above the screen mask mounted to the mask mounting area, and the squeegee reciprocates relative to the screen mask in a squeegee-movement direction; and a receptacle which is installed at a location so that the screen mask is allowed to be attached and detached and which catches applying material adhered to the squeegee.

Abstract: A screen printing machine includes a supporting member, a printing mechanism, and a spraying mechanism. The supporting member includes a supporting surface, a number of cavities defined in the supporting surface to receive a number of substrates, and a number of screens detachably covering the plurality of cavities. The printing mechanism includes a guide plate located above the screens, a sliding device slidably connected to the guide plate, a roller rotatably connected to the sliding device, and a squeegee. The sliding device is configured to drive the roller to roll across and the squeegee to slide across the screens. The spraying mechanism is located at one side of the supporting member for dispensing printing material onto the press roller.

Abstract: In a returning path operation for moving a closed type squeegee mechanism in a direction opposite to a squeezing direction after an outward path operation where paste is packed into pattern holes by moving the closed type squeegee mechanism in the squeezing direction, the paste supplied to the outside of the closed type squeegee mechanism on an upper surface of a mask is spread due to a deposition member, by moving the deposition member of a paste deposition mechanism in a state close to an upper surface of the mask in the direction opposite to the squeezing direction. Therefore, a paste film having a predetermined thickness is formed.

Abstract: In a squeezing operation by a closed type squeegee mechanism which is configured so that paste compressed internally is packed from a printing opening between a pair of sliding members, before the packing of the paste into pattern holes via the printing opening, the sliding member positioned on a leading side of a squeezing direction between the pair of sliding members and moves in the squeezing direction so that the paste supplied to the outside of the closed type squeegee mechanism on an upper surface of a mask is packed into the pattern holes.

Abstract: In outward path and returning path operations of a printing executing step where paste is packed into pattern holes by moving a closed type squeegee mechanism in a squeezing direction, the paste supplied to the outside of the closed type squeegee mechanism on an upper surface of a mask is spread due to a deposition members by moving the deposition members of paste deposition mechanisms positioned on a following side in a traveling direction, in the traveling direction in a state close to the upper surface of the mask. Therefore, a paste film having a predetermined thickness is formed.

Abstract: A screen printing apparatus that prevents degradation of a printing tact and print quality is provided. There are included a cleaning unit 14 that cleans one surface 11c of a screen mask 11 opposing a workpiece 2, the screen mask 11 having a print pattern for printing a pattern on the workpiece 2, and a conveying means 15 that conveys the cleaning unit 14 over the surface 11c of the screen mask 11. The cleaning unit 14 includes cleaning paper 21 that contacts the surface 11c of the screen mask 11, a scraper 22 that brings the cleaning paper 21 into contact with the surface 11c of the screen mask 11, that slides on the surface 11c of the screen mask 11 with the cleaning paper 21 being disposed therebetween, and that has an uneven face portion 22b, and a scraper moving means 23 that moves the scraper 22 to the contact position.

Abstract: Provided are a screen printer and a screen printing method capable of reducing poor printing by realizing smooth rolling of a paste. When a squeegee 32 is slid on a mask 5 so as to transfer a paste Ps to a substrate 2, leakage prevention members 33 are slid on the mask 5 along with the squeegee 32 so as to prevent the paste Ps on the mask 5 from leaking out of both sides of the squeegee 32. The height H0 of the paste Ps on the mask 5 is greater than the height Hm of the leakage prevention members 33 from the upper surface of the mask 5, and the paste Ps located at a position greater than the height Hm of the leakage prevention members 33 is rolled.

Abstract: The invention relates to a printing device, system, kit, and method for screen printing indicia on surfaces. More particularly, the present invention provides a hand-held, ink applicator in a sealed pouch combined with a rigid backing member for applying indicia on a surface via use with a screen printing stencil member, and a method for utilizing same.

Abstract: To provide a screen printing apparatus and a screen printing method which can enhance a plate separating property after a printing operation regardless of a type of a mask, thereby suppressing occurrence of printing failure. A screen printing apparatus includes mask supporting means 6 for supporting a mask 2 from the rear surface thereof, holding means 20 for holding a printing medium 3, posture changing means 30 for changing a posture of the printing medium 3 held by the holding means 20 between a parallel posture parallel to the mask 2 and a tilted posture tilted about the mask 2, and lifting means for lifting the holding means 20 so as to contact and separate the surface of the printing medium 3 with or from the rear surface of the mask 2. Here, the printing medium 3 having been subjected to a pattern printing operation is separated from the mask 2 from one end of the printing medium to the other end thereof.

Abstract: A method of screen printing on 3D glass articles includes providing a 3D glass article having a first 3D surface with a first surface profile and a second 3D surface with a second surface profile, the first 3D surface and the second 3D surface being separated by a thickness of glass. The method includes providing a fixture having a 3D fixture surface with a fixture surface profile matching the second surface profile. The method includes providing a screen having a design, a squeegee, and an ink. The 3D glass article is supported on the fixture by mating the second 3D surface with the 3D fixture surface. The screen is positioned at a plane a distance above the first 3D surface. The ink is deposited on the screen. The squeegee is positioned at a selected orientation relative to the plane.

Abstract: A scraper central portion in which a first contact surface has a trapezoidal shape with a lower base longer than an upper base, and scraper end portions that extend and are bent from respective lateral sides of a trapezoidal shape of the scraper central portion to a side of the first contact surface, and that include second contact surfaces that come in contact with the coating material. A lower base of the scraper central portion and lower sides of the scraper end portions are on the same plane. In a state where the first contact surface is vertical to the surface of the screen plate, the lower base of the scraper central portion and the lower sides of the scraper end portions come in contact with the coating material on the surface of the screen plate, and slide on the surface of the screen plate.

Abstract: A holding mechanism 40 is made up of a shaft support 44 that is provided while joined to a joint and that has a vertically-oriented pivot 44a, a shaft member 45 that horizontally extends from the shaft support 44 and that is turnable around the pivot 44a, and a fitting section 36 that is formed in a squeegee unit 16 and to which the shaft member 45 is removably fitted. Thereby, the entirety of the squeegee unit 16 becomes removably attachable by only moving the squeegee unit 16 in a horizontal direction.

Abstract: A screen printing machine includes a supporting member, a printing mechanism, and a spraying mechanism. The supporting member includes a supporting surface, a number of cavities defined in the supporting surface to receive a number of substrates, and a number of screens detachably covering the plurality of cavities. The printing mechanism includes a guide plate located above the screens, a sliding device slidably connected to the guide plate, a roller rotatably connected to the sliding device, and a squeegee. The sliding device is configured to drive the roller to roll across and the squeegee to slide across the screens. The spraying mechanism is located at one side of the supporting member for dispensing printing material onto the press roller.

Abstract: At the two ends of a pair of clamping members (9a) which sandwich and clamp a board (10) from the Y direction, mask supporting members (9b) forming a rectangle frame are disposed, and a screen mask (12) is supported from below by the mask supporting members (9b) in a state that the board (10) abuts against the under surface of the screen mask (12). A downwards bending of the screen mask (12) can be prevented, and the time and labor of maintenance can be decreased by preventing the deposits of paste on the screen mask (12) that occur due to the bending.

Abstract: A pressing mechanism that presses a dam member 30 against a screen mask 12 has a guide shaft 32 that guides a direction of movement of the dam member 30 during pressing operation and a compression spring 33 that forces the dam member 30 in an axial direction of the guide shaft 32. A printing pressure value at which the dam member 30 is pressed against the screen mask 12 is made stable, to thus make stable an effect of preventing effluence of the paste to the outside of a print width on the screen mask 12.

Abstract: The invention relates to a silk-screen printing machine (2) comprising a frame (4), a plate (6) for transporting the objects (18, 20), which plate (6) is mobile relative to the frame, a first (10) and a second (12) printing station, means (7) for displacing the plate (6) in order to bring the objects (18, 20) into alignment with the printing stations, and an object support (22) capable of carrying a first (18) and a second (20) object. The first printing station (10) is capable of printing solely the first object (18). The second printing station (12) is capable of printing solely the second object (20). The displacement means (7) are suitable for displacing the object support (22) between the first (10) and the second (12) printing station after the first object (18) has been printed at the first printing station (10) and the second object (20) has been printed at the second printing station (12).