Komori Corporation

Glory Ltd.

Hiromitsu Numauchi

Akehiro Kusaka

Hiroyoshi Kamoda

Isao Komuro

Shigeo Furukawa

Kenji Hayashi

Hideki Mori

Toshihiko Ebina

Norihiro Kumagai

Hitoshi Funada

Isao Funabashi

Akihiko Takenouchi

Kazutaka Adachi

Hiroyuki Onishi

Soichi Nakamura

Sayuri Yanagiuchi

Isao Umetsu

Takashi Suto

Ryuzo Tanigawa

Mikio Matsumoto

Tatsuhiko Yokochi

Kenzo Otake

Masahiro Ishiwata

Shigeru Yanagawa

Kouichi Katsumata

The present invention is a method for measuring the varnish film thickness of a printed article by obtaining the film thickness of varnish on a sheet () on which a pattern is printed on a base thereof with ink and the pattern is coated with the varnish, wherein a metal foil () having a smooth surface is attached to the base of the sheet (), and the film thickness of the varnish coated directly over the metal foil () is detected with a spectral interference-type film thickness meter () so as to determine whether the film thickness of the varnish is acceptable or not on the basis of the results detected by the spectral interference-type film thickness meter ().

Method for measuring varnish film thickness of printed article and varnish film thickness measurement device

An apparatus for inspecting the characters/numbers of a negotiable instrument, the apparatus being provided with: cameras () for imaging the character/number sequence () printed on each design on large-size printed matter () on which a plurality of designs of the negotiable instrument are printed; and a character/number inspection device () for determining the suitability of the characters/numbers printed on each negotiable instrument on the basis of the image data imaged by the cameras (), wherein the character/number inspection device () determines the suitability of the character/number sequence () in a cut segment () on the basis of a plurality of determination standards set in accordance with the position of the cut segment () on the large-size printed matter ().

Apparatus for inspecting characters/numbers of negotiable instrument, and method for inspecting characters/numbers of negotiable instrument

A print quality examination device is provided in a printing machine () provided with a printing unit () that performs printing on a mirror-reflection member () of a sheet () to which the mirror-reflection member () is added. The print quality examination device of the printing machine is provided with an examination camera () that images a picture printed on the sheet (), a light source () that irradiates the sheet () with light, and a print quality examination unit () that examines the quality of the picture printed by the printing unit () based on image data imaged by the examination camera (). The examination camera () or the light source () is configured to be movably supported on an arc about a detection point (P) imaged by the examination camera () for the sheet ().

Print quality examination device

In order to provide a numbering and imprinting machine capable of minimizing the amount of wasted paper produced, the numbering and imprinting machine is provided with: a first-number inspection camera (B) that is arranged downstream of the position of contact between an impression cylinder () and a first-number cylinder () of a first-number printing unit () in the direction of rotation of the impression cylinder (), and images a first number printed on paper (W) held on the impression cylinder (); a second number inspection camera (C) that is arranged downstream of the position of contact between an impression cylinder () and a second-number cylinder () of a second-number printing unit () in the direction of rotation of the impression cylinder (), and images a second number printed on paper (W) held on the impression cylinder (); and a printing-press control device () that controls first- and second-number-cylinder throw-on and throw-off devices () based on signals from the first- and second-number inspection cameras (B,C) to cause the first-number cylinder () and the second-number cylinder () to make separating movements.

Number printing apparatus

According to a drive control method and apparatus, an offset printing section and an intaglio printing section are connected together by a gear train. Separately from an offset printing section prime motor for driving an entire sheet-fed printing press, an intaglio printing section auxiliary motor is provided in the intaglio printing section where load is heaviest and load variations are great. By so doing, the entire sheet-fed printing press is driven by the offset printing section prime motor and the intaglio printing section auxiliary motor. Moreover, the electric current value (driving torque value) of the intaglio printing section auxiliary motor is controlled in accordance with an electric current value (torque value) for driving the offset printing section prime motor, the torque distribution rate of the intaglio printing section auxiliary motor, and the rated electric current value of the intaglio printing section auxiliary motor.

Drive control method and drive control apparatus for printing press

A contact pressure adjusting method and a contact pressure adjusting apparatus for a printing press, which can adjust a contact pressure automatically and always highly accurately without the influence of mechanical oscillations (disturbance such as noise), are provided. For this purpose, the contact pressure (load) of a wiping roll on an intaglio cylinder is converted into the torque value (electric current value) of a wiping roll drive motor, and given as feedback to a wiping roll contact pressure adjusting motor.

Contact pressure adjusting method and contact pressure adjusting apparatus for printing press

In a sheet-fed printing press including; an impression cylinder gear driven by an upstream drive motor of an upstream printing unit group; an impression cylinder rotationally driven by the impression cylinder gear; a transfer cylinder gear of a convertible press mechanism rotationally driven by the upstream drive motor through the impression cylinder; and a transfer cylinder which is provided with a notch and is rotationally driven by the transfer cylinder gear, a load motor is provided to the transfer cylinder or the transfer cylinder gear, and braking force of the load motor is controlled according to load on the upstream drive motor.

Method and apparatus for driving processor

In a rotary stencil printing press including a rotary screen cylinder which supports a screen printing form and is supported rotatably, and a squeegee which is located within the rotary screen cylinder and, when printing is done, contacts an inner peripheral surface of the screen printing form to transfer ink stored within the rotary screen cylinder to a web via holes of the screen printing form and, when printing is stopped, leaves the inner peripheral surface of the screen printing form, throw-on and throw-off of the squeegee with respect to the inner peripheral surface of the screen printing form, and adjustment of the position of the throw-on are performed by motors.

Ink transfer member position adjusting method and apparatus of rotary stencil printing press

A synchronous control method and apparatus for a rotary stencil printing press individually drive a rotary screen cylinder by a dedicated drive motor, can set how many rotations have been made before arrival of a sheet at a screen printing unit when synchronous control of the drive motor with respect to a prime motor of a sheet-fed offset printing press is started, and stop the rotation of the rotary screen cylinder until the start of the synchronous control.

Synchronous control method and apparatus for rotary stencil printing press

An upstream-side printing unit group and a downstream-side printing unit group, respectively, are driven by separate prime motors and synchronously controlled. In addition to rotary encoders for the upstream-side and downstream-side prime motors, rotary encoders are provided on a last impression cylinder of the upstream-side printing unit group and a first transfer cylinder of the downstream-side printing unit group to detect differences between rotational phases, which the upstream-side and downstream-side printing unit groups should have, and the actual rotational phase of the last impression cylinder of the upstream-side printing unit group or the first transfer cylinder of the downstream-side printing unit group. In accordance with the rotational phase differences, the rotational speeds of the prime motors are corrected.

Drive control method and drive control apparatus for processing machine

A rotary screen printing press includes, a rotary screen cylinder which supports a screen printing form and is supported rotatably; an impression cylinder which is provided to oppose the rotary screen cylinder, and is supported rotatably; and a squeegee which is located within the rotary screen cylinder and, during printing, contacts an inner peripheral surface of the screen printing form, while being pressed against it, to transfer ink stored within the rotary screen cylinder to a material to be printed, which is held on the impression cylinder, via holes of the screen printing form. The printing press has a squeegee throw-on and throw-off control device which controls the pressing force of the squeegee acting on the inner peripheral surface of the screen printing form during printing in accordance with the type and thickness of the material to be printed.

Liquid transfer member pressing force adjusting method and apparatus of rotary stencil printing plate liquid coating machine

Disclosed is a contact-pressure adjusting method and a contact-pressure adjusting system, each of which automatically adjusts the contact pressure between two rotors, for a liquid application machine including: a first rotor to which liquid is supplied; a second rotor to which the liquid is supplied from the first rotor; and a contact-pressure adjusting unit for adjusting the contact pressure between the first rotor and the second rotor. By using a temperature measuring unit, measured is: the temperature of at least one of the surfaces of the first and second rotors; the temperature of at least one of the liquid on the surface of the first rotor and the liquid on the surface of the second rotor; or the temperature of at least one of the vicinity of the first rotor and the vicinity of the second rotor. The contact-pressure adjusting unit is adjusted in accordance with the measured temperature.

Contact-pressure adjusting method and contact-pressure adjusting system for liquid application machine

A method and a device for synchronously controlling multiple printing presses or multiple units in a printing press can reduce power consumption and improve durability of motors and motor bearings. A synchronous control device for multiple printing presses includes machine shafts of a main printing press and a sub printing press respectively provided with drive motors and is configured to synchronously control rotation of the sub printing press with respect to rotation of the main printing press. Here, drive motor brakes are attached to the respective drive motors, and drive control devices respectively configured to release synchronous control of the drive motor of the sub printing press by a stop instruction and to start the drive motor brakes of both of the printing presses are provided.

Method and device for synchronously controlling multiple printing presses or multiple units in printing press

A synchronous control device which is provided with drive motors and a central control unit generating a synchronous reference signal and with which the drive motor is controlled to rotate synchronously with the synchronous reference signal supplied from the central control unit, which is provided with: device motor brakes for braking a rotation of the drive motor; machine home position detectors for detecting a rotation phase of the drive motor; and drive controlling means for controlling a drive motor in such a manner that the drive braking means is activated depending on a stop instruction supplied from the central control unit and a required rotation phase of the drive motor is stored; a comparison between the required rotation phase of the drive motor and the rotation phase thereof is performed at the time of re-start; and a home position alignment of the drive motor is performed at a start time of a subsequent operation.

Synchronous control method and device of the same

In order to place web offset printing presses A and B in a synchronous operation condition by simple operation with a reduce burden to the operator, actuation of a drive clutch and a folder clutch of the machine A alone and actuation of a drive clutch of the machine B along are made detectable on a synchronous operation control panel and, under control of the control panel, a synchronous operation clutch is actuated with phase matching between the machines A and B, thereby enabling synchronous operation.

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Tsukuba, Japan

Hiromitsu Numauchi