Abstract: A letterpress printing machine is disclosed including a rotary printing cylinder in which a relief printing plate is installed, a substrate surface plate on which a substrate is placed, an ink supply device supplying ink on the relief printing plate, a relief printing plate washing equipment washing the surface of the relief printing plate, and a wiper for a plate. The relief printing plate washing equipment can include a washing liquid supplying unit, an air blasting unit jetting pressurized gas to the relief printing plate, a suction unit sucking the washing liquid scattered by air blasting unit, and a washing liquid recovery unit.

Abstract: A letterpress printing machine is disclosed including a rotary printing cylinder in which a relief printing plate is installed, a substrate surface plate on which a substrate is placed, an ink supply device supplying ink on the relief printing plate, a relief printing plate washing equipment washing the surface of the relief printing plate, and a wiper for a plate. The relief printing plate washing equipment can include a washing liquid supplying unit, an air blasting unit jetting pressurized gas to the relief printing plate, a suction unit sucking the washing liquid scattered by air blasting unit, and a washing liquid recovery unit.

Abstract: A letterpress printing machine is disclosed including a rotary printing cylinder in which a relief printing plate is installed, a substrate surface plate on which a substrate is placed, an ink supply device supplying ink on the relief printing plate, a relief printing plate washing equipment washing the surface of the relief printing plate, and a wiper for a plate. The relief printing plate washing equipment can include a washing liquid supplying unit, an air blasting unit jetting pressurized gas to the relief printing plate, a suction unit sucking the washing liquid scattered by air blasting unit, and a washing liquid recovery unit.

Abstract: A carton delivery apparatus is disclosed which removes cartons, one by one, which are already scored and stored in a stack in a magazine, as folded down flat against each other. A suction mechanism removes cartons one by one from the magazine by holding it attracted thereto and delivers it to a conveyer. The suction mechanism is mounted on a rotatable member which is rotatable about a horizontal shaft disposed between the magazine and the conveyer. The suction mechanism is also rockable about a support shaft which is mounted on the member so that as the member rotates, the suction mechanism removes a carton and deliver it to the conveyer while holding it attracted thereto on its lower side.

Abstract: Apparatus for adhesively affixing together flaps of a container box includes a conveyor belt on which the box is carried, a glue applicator for applying glue to at least one of the flaps, a main flap folding unit for folding the flaps together during normal operation and an auxiliary flap folding unit which is held inoperative during normal operation but which is set in operation when the conveyor belt is brought to a halt.

Abstract: The present invention relates to a method for mounting a faucet on a paper container which is used as a container for milk or the like. That is, the method comprises the steps of heating the adhesive portions of the paper container coated with a thermoplastic resin and the faucet made of a synthetic resin, and pressing both the adhesive portions against each other in the heated condition to cause them to adhere to each other. An apparatus for carrying out this method is provided with retaining mechanisms which hold the paper container and the faucet, respectively, and a heater for heating the paper container and the faucet that are held in the respective mechanisms, whereby, after the heating by the heater, the paper container and the faucet are caused to approach together and are pressed against each other.

Abstract: A packaging box is assembled from a blank including a trapezoidal locking tab formed adjacent to one end edge of the blank by a cut formed therein. An insert tab extends from the other end edge of the blank and can be inserted into an opening which is formed when the locking tab is folded. When an article or articles are packaged, the insert tab is inserted into the opening from the outside while tilting the locking tab, and when fitted into the opening, the insert tab is urged by gravity of the articles, whereby it is locked in place. In this manner, the packaging box is rigidly maintained in its assembled condition.