Abstract: A paper web guide device for guiding and conveying a paper web comprises a plurality of guide rollers arranged in a parallel configuration in a printing system. The guide rollers comprise a mix of driving guide rollers equipped with a driving mechanism and braking guide rollers equipped with a braking mechanism. The driving guide rollers are controlled so as to make the revolving speed of the guide rollers faster than the travelling speed of the paper web. The braking guide rollers are controlled so as to make the revolving speed of the guide rollers slower than the travelling speed of the paper web. This guide device can exactly perform a cleaning operation on the guide rollers within a short period and without accumulating the tension applied to the travelling paper web.

Abstract: An ink supply source driving apparatus for rotary presses, capable of reducing the dimensions and weight of a rotary press and carrying out by a single ink supply source driving system an ante-printing rapid ink feeding operation, and an ink pump purging operation for the purpose of carrying out the cleaning of the parts after the completion of a printing operation and the cleaning of the parts for the purpose of replacing the ink by ink of a different color, the apparatus consisting of a synchronizing signal generator adapted to generate when a rotary press driving system in a rotary press is rotated a signal synchronous with the rotation thereof, an ink pump driving motor, a control unit adapted to control the ink pump driving motor selectively so that the ink pump driving motor is driven by an output from the signal generator synchronously with and at a predetermined rotational ratio with respect to the rotation of the rotary press driving system or independently of the rotation of the rotary press driving

Abstract: A marker is used for the confirmation of the paper web-threaded paths for rotary presses. The marker includes a marking unit for putting a mark on a paper web and a regulator composed of 1) a timing detector to detect the rotational phase of a printing cylinder and transmit a detected timing signal and 2) a transmitter to transmit an operating signal to the marking unit when it receives a detected timing signal from the timing detector. The regulator control when a mark is put on the paper web by the marking unit so that the mark always has a predetermined phase with respect to the printed images produced during a printing operation. A paper web-threaded path confirming apparatus includes a mark detector to detect a mark put on the paper web by the marking unit and transmit a detected mark signal. A transmitter transmits a rotational phase signal relatively to the rotational phase of a cutter cylinder rotated in a folder unit.

Abstract: This invention relates to a control device for adjusting the travelling tension and the cutting position of printing paper in a printing apparatus. The control device automatically controls the travelling tension of the paper webs within a reference control range, which depends on the number of the paper webs, when the printing machine is driven at a constant speed or when changing speeds slowly. This control device also automatically corrects over-stretching or loosening of the travelling paper webs due to the resistance or the inertial force of guide rollers when the printing machine is driven to change speeds quickly such as at the start or end of the printing operation.

Abstract: A simply constructed web tension meter is of reduced dimensions capable of preventing an object material from being displaced during a web tension measuring operation. The meter consists of a hollow body provided with an inlet port to which a fluid supply source is connected. An ejection port is opposed to one surface of the object material with a clearance left therebetween. An internal pressure measuring port, and a web tensioning unit are provided with a pressure measuring device joined to the internal pressure measuring port. This meter further includes as necessary another hollow body provided with an upstream port connected to a fluid supply source, and discharge ports opposed to the other surface of the object material with a clearance left therebetween. A web tension controller consists of the same web tension meter as mentioned above in an object material handling apparatus, and a web tension regulator regulates the tension imparted to the moving object material.

Abstract: This tab surface-protective paper separating device is what removes from a tab stuck on the leading web end of a paper roll the protective paper which is attached to the outer surface of the tab except on portions along its edges; it is comprised of a table board upon which a leading web end with a tab stuck thereon is brought, a scraper which is designed to be moved transversely along the table top and is capable of being wedged into inadhesive peripheral points between the base tab and its protective paper, and a gripping claw for holding the protective paper between the scraper and itself in coordination with the wedging movement of the scraper. In seizing the protective paper between the scraper and the gripping claw, the device wedges the scraper between the tab and its protective paper with the help of ejection of compressed air. The protective paper is automatically removed from the tab as the scraper and the claw, both holding the protective paper therebetween, are moved away from the table board.

Abstract: The present invention relates to equipment used in a printing system for newsprint or the like, more specifically, to a device for successively rolling up unusable outer surface strips from paper rolls, compressing them, and then discharging them. The device comprises first and second conveyors which can be moved between a V-shaped position, wherein unusable paper is conveyed in a forward direction and rolled up into a cylindrical shape, and parallel positions, wherein the rolled-up, unusable paper is compressed flatly and discharged. A semi-arched guiding device disposed above the two conveyors cooperates with the conveyors to roll up the unusable paper into a cylindrical shape and one of the conveyors changes its conveying direction to switch from a rolling up mode to an ejection mode.

Abstract: A device for peeling and cutting off a surface portion (4c) of a paper roll (4) comprises a rotary support (1) that rotates the paper roll (4), a cutter guide (2) that reciprocally moves between positions for contacting and not contacting the paper roll surface portion, and a cutting device (3) that reciprocally moves parallel to a paper roll axis for cutting off the surface portion. In the contacting position, the cutter guide enters under the surface portion via a leading end (4a) of the paper roll when the paper roll is rotated and thereby forms a clearance under the surface portion. The cutter is inserted in the clearance and moves parallel to the paper roll axis to cut off only the surface portion of the paper roll along its entire width.

Abstract: The present invention relates to a device used in an automatic device for preparing paper rolls for web pasting, which is included in a printing system for newsprint and the like. The device automatically attaches one end of a tab, which has been prepared beforehand, to the outer surface of a web's leading end so that the web's leading end, which has been cut into a certain shape (for example, V-shaped), may be fastened to the outer surface of a paper roll on which the web is wound.A tab blank is formed basically by a rectangular support paper, which is provided with adhesive portion's on its upper and lower surfaces, and protective-coating films attached to both surfaces. An upper protective-coating film and the support paper, both of which form a portion of the tab blank, are divided transversely along a dividing line.The tab attaching device embodying the present invention is comprised of a tab loading device for keeping tab blanks in piles.

Abstract: A washing device is capable of carrying out washing work in a roller part of a machine unit automatically, continuously, concentrically and uniformly. The washing device employs a washing solvent storage tank, and a used washing solvent storage tank,. The device transfers washing solvent in a washing solvent storage tank to a machine unit with a roller to be washed, supplies washing solvent to the roller to be washed set at the end point of the transfer means, a used washing solvent collecting means collects used washing solvent from the proper position of a roller to be washed, and discharges collected used washing solvent to a used washing solvent storage tank.

Abstract: The present invention relates generally to equipment for a printing system for newsprint and the like and, more particularly, to a device for automatically preparing leading web ends of paper rolls for automatic web pasting.A device embodying the present invention is supported generally from a ceiling of a room and extends downwardly when used.

Abstract: An ink feed measuring device comprising a luminuous plate and a light receiving plate constructed so as to hold a photographic film of a printed matter between the two plates, the luminuous plate having one or more electro-luminescent plates and the light receiving plate having a plurality of photoelectric elements corresponding to the sectioned areas of the photographic film, wherein ink feed volume corresponding to each sectioned area of the photographic film is measured based on the amount of light transmitted through the sectioned areas of the film.