SCREEN FRAME FIXING DEVICE IN SCREEN PRINTING MACHINE

    公开(公告)号:JPH01229630A

    公开(公告)日:1989-09-13

    申请号:JP5799888

    申请日:1988-03-11

    Applicant: SONY CORP

    Abstract: PURPOSE:To enable a screen frame to be fixed correctly and surely without paying attention, by holding the screen frame between rods of cylinder devices and stoppers after the positional regulation action of the cylinder devices. CONSTITUTION:A substrate 8 on a pair of chains 7, 7 is carried from a carry-in position to a discharge position through a previous printing position. A screen receive part 12 is fixed on the upper surface of a plurality of struts 11 raised on the upper surface of a device body 2. A screen frame 18 is disposed on a reference plane 13 (an upper surface) of the screen receive part 12. On the other hand, pressing means 21 consisting of stoppers 19a-19c disposed orthogonally and cylinder devices 20a-20c are provided by three sets so as to press the screen frame 18 orthogonally. Rods 25 of the three cylinder devices 20a-20c travel in the order of a non-pressing position, a pressing position, and the non-pressing position for conducting a positional regulation. Then, the screen frame 18 is subjected to a sufficient pressing force to be abutted against the stoppers 19a, 19b, and 19c, thereby being positioned accurately and surely.

    SCREEN PRINTING MACHINE
    4.
    发明专利

    公开(公告)号:JPH01229628A

    公开(公告)日:1989-09-13

    申请号:JP5799988

    申请日:1988-03-11

    Applicant: SONY CORP

    Abstract: PURPOSE:To position a substrate correctly and ensure the attraction of the substrate to a substrate receive mount, by providing temporary substrate support mechanisms which press the upper surface of the substrate for supporting it when the substrate is positioned and attracted. CONSTITUTION:A substrate 8 on a pair of chains 7, 7 is carried from a carry-in position to a discharge position through a previous printing position. Temporary substrate support mechanisms 71 are disposed by four sets in total on two positions opposed to a pair of chain support blocks 3, 3. Arm parts 77 of the temporary support mechanisms 71 can move between a pressing position pressing the upper surface of the substrate 8 on the previous printing position and a releasing position permitting the raising or lowering. A reference pin 53 is raised by a substrate positioning means 45 on the previous printing position to be inserted into a reference hole of the substrate 8. Then, the substrate 8 is attracted in the state of being positioned to be held on the upper surface of a substrate receive mount 63. The substrate 8 pressed down by the arms 77 is horizontally displaced by the pressing force of the reference pin 53 if being offset from a correct position without the possibility of being levitated or further separated from the substrate receive mount 63.

    SQUEEGEE BLOCK IN SILK SCREEN PRINTER

    公开(公告)号:JPH08207243A

    公开(公告)日:1996-08-13

    申请号:JP30201395

    申请日:1995-10-26

    Applicant: SONY CORP

    Abstract: PURPOSE: To save printing labor and improve print quality by preventing printing ink supplied to a printing screen from spewing out from the ends of a knife in a squeegee block in a screen printer. CONSTITUTION: Ink spewing-out prevention pieces 36', 37' are provided at both ends of a pair of knives 24, 25 in the direction of a squeegee which are positioned apart in the direction of the squeegee, the ink spewing-out prevention pieces protrude from both ends of the knives and are extended in a diagonal direction in relation to the opposing faces to allow the heads of opposing knives to approach to each other gradually.

    REFLOW SOLDERING HOT AIR BOX
    6.
    发明专利

    公开(公告)号:JPH06342975A

    公开(公告)日:1994-12-13

    申请号:JP7926094

    申请日:1994-03-28

    Applicant: SONY CORP

    Abstract: PURPOSE:To generally stably and uniformly diffuse hot air from a plurality of hot air diffusing holes formed at a plate so disposed as to cover an opening of a hot air box by causing a vortex of the hot air flown in the box. CONSTITUTION:A reflow soldering hot air box comprises hot air generators 3, 3 so disposed as to cover an opening of a hot air box 2 with an upper plate 7 having a plurality of hot air diffusing holes, to couple its one ends to air compressors 31, 31 and to couple the other ends with heater elements coupled to the box and added on the way. The generators are so coupled as to be disposed at axes of opposite faces of the box in a zigzag manner, and recess surfaces 32, 32 are formed on parts of corners of an inner surface of the box with which the axes of the generators are brought into contact.

    SCREEN PRINTING MACHINE
    7.
    发明专利

    公开(公告)号:JPH01229629A

    公开(公告)日:1989-09-13

    申请号:JP5799788

    申请日:1988-03-11

    Applicant: SONY CORP

    Abstract: PURPOSE:To enable a screen frame etc. to be replaced rapidly and easily, by a method wherein, the screen frame is directly mounted on a screen receive part, and a clearance between a screen and a substrate is adjusted by varying the thickness of a substrate receive mount. CONSTITUTION:A substrate 8 is loaded on a pair of chains 7, 7 and moved to be carried from a carry-in position to a discharge position through a previous printing position. A hole 14 is formed approximately at the center of a screen receive part 12 having an upper surface as a reference plane 13. A substrate receive mount 63 mounted on the upper surface of a raising/lowering block 58 is disposed downward of the substrate 8 on the previous printing position. Then, the substrate 8 can be inserted into the hole 14 on the screen receive part. A pressing force acting ensures a screen frame 18 a direct and secure contact with the reference plane 13 of the screen receive part 12. In this manner, the surface of a screen 30 and the reference plane 13 of the screen receive part 12 are always coincident with each other. A clearance between the screen 30 and the substrate 8 can be adjusted by the replacement with a prepared substrate receive mount 63 having a different thickness l.

    MECHANISM FOR DETECTING LAYER THICKNESS OF HIGH VISCOSITY FLUID

    公开(公告)号:JPS63154910A

    公开(公告)日:1988-06-28

    申请号:JP30338986

    申请日:1986-12-19

    Applicant: SONY CORP

    Abstract: PURPOSE:To indirectly detect a layer thickness with good accuracy, by providing a detection medium, a control means for controlling the position of the detection medium so as to move the same to a high viscosity fluid side under its own wt. and a sensor for detecting the position of the detection medium. CONSTITUTION:When the operation for detecting the residual amount of solder is started, the piston rod 47 of a detection rod control cylinder 46 moves to a falling position and a detection rod 39 moves to the side of creamy solder 37. In this case, when the amount of the solder 37 on a printing screen 14 is predetermined amount or more, only the rod 47 moves downwardly from the point of time when the contact end 41a of the detection rod 39 is brought into contact with the solder 37 and the detection rod 39 is prevented from moving downwardly in such a state that the upper end part of the part 40a to be detected of said detection rod 39 is opposed to the detection part 51a of a residual amount detection sensor 51. Then, a signal meaning that the amount of the solder 37 is the limit amount or more is outputted from the sensor 51. When the amount of the solder 37 is limit residual amount or less, the upper end of the part 40a to be detected of the detection rod 39 is moved to a height lower than the detection part 51a. In this case, a signal showing the limit residual amount or less of the solder 37 is outputted from the sensor 51.

    SQUEEGEE BLOCK IN SCREEN PRINTING MACHINE

    公开(公告)号:JPS63154350A

    公开(公告)日:1988-06-27

    申请号:JP30338886

    申请日:1986-12-19

    Applicant: SONY CORP

    Abstract: PURPOSE:To carry out the observation of the residual quantity of ink etc. not manually but mechanically, by refilling a printing ink when the quantity of ink detected by a residual ink quantity detecting means becomes less than a predetermined quantity. CONSTITUTION:At the completion of a printing of the prespesified number, a printing action is once brought to a halt and the residual quality of a cream solder 49 on a printing screen 16 is detected by a residual ink quantity detecting mechanism 51. If it is less than a limit residual quantity, the cream solder 49 is refilled on the printing screen 16 by a predetermined quantity from an ink supply portion 38. The refilled cream solder 49 is subjected to a smoothing action and, thereafter, the printing action is restarted. The cream solder 49 on the printing screen 16 is prevented from being out from the right and left edges of a squeegee spatula 24 and those of a scraper spatula 25.

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