Abstract: Disclosed is a belt meandering preventing system in a single facer consisting of an upper fluted roll, a lower fluted roll, a gluing mechanism, and an application mechanism having an endless belt extended over a plurality of rolls so as to be able to run freely thereby in which a liner is pressed against the glued crests of corrugation of a corrugating medium to be pasted therewith to form a single-faced corrugated board, characterized in that a support shaft on which one of the plurality of rolls is rotatably fitted is designed to be swung on one end portion thereof as a fulcrum by operating a drive means, thus preventing securely meandering of the endless belt using the system having such simple structure and also reducing the production cost and the size of the single facer.

Abstract: Disclosed is a single facer provided with a plurality of fluting units, each consisting of an upper fluted roll and a lower fluted roll which engages with the upper fluted roll and forms a predetermined corrugation on a corrugating medium to be passed between the upper fluted roll and the lower fluted roll in the corresponding fluting unit and to paste a liner onto the glued crests of the corrugating medium; the single facer comprising a single fixed supporting member disposed adjacent to and to oppose to all of the lower fluted rolls via a route of feeding the liner fed to the corresponding fluting unit; a sleeve-like endless belt wound around the supporting member to be able to run freely therearound; and a plurality of pressing members disposed to oppose, via the endless belt, to the lower fluted rolls to be parallel with the respective lower fluted rolls; the pressing members being able to be moved, while maintaining the horizontal posture, closer to the corresponding lower fluted rolls with the aid of pr

Abstract: Disclosed is a printing die replacement assisting unit for facilitating die replacement by an operator in a printing apparatus having a plate cylinder rotatably supported in the main body of the apparatus with a printing die having engagement plates being mounted on the circumference of the plate cylinder, the printing die replacement assisting unit comprising a support frame disposed on the main body, with a fitting member being descendably supported on supporting means disposed on the support frame; holding means disposed to the fitting member, which can releasably hold one of the engagement plates of the printing die; and an urging means connected to the supporting means, which normally urges the means in the direction such that the fitting member may be ascended, but allows pulling down of the fitting member; wherein the printing die is designed to be held by and suspended from the fitting member via the holding means.

Abstract: Disclosed is a printing machine for corrugated board sheets, which is designed to facilitate the procedures of ink change in accordance with order changes in the printing of corrugated board sheets by using a low viscosity and quick-drying glycolic ink, in which the residual ink of the previous order can effectively be recovered so as to minimize the amount of the ink to be wasted.

Abstract: A web roll transferring apparatus consisting of a roll stand, a couple of bogies which run on the rails disposed on each side of the roll stand and a turntable disposed in a roll transferring station locating in front of the roll stand so as to be rotatable horizontally; transference of a web roll being designed to be carried out between the turntable and the bogies stopping at the predetermined positions provided on each side of the turntable; characterized in that at least one jack disposed beneath the turntable, which can be operated by a fluid pressure and the like so as to tilt the turntable to one of the bogies or to the side opposite to the roll stand to a predetermined angle, and that jacks for tilting the bogies toward the turntable may be disposed at the positions by the turntable where the bogies are to stop.