Miyakoshi Printing Machinery Co., Ltd.

Ad. Printing Co., Ltd.

Masahiro Naka

Toshiyuki Yamagata

Masahiro Sumida

Yasuyuki Endou

Masaki Tamura

Hiroyuki Shibata

Kenji Abe

Akihiko Nakao

The invention relates to a label separating apparatus in which, of labels formed in rows and columns on a continuous substrate being transported along a line of transport, labels found good and labels found defective upon determination of their quality are transported separately. The invention seeks to ensure that all of a plurality of defective labels possibly extant in any one of the rows can concurrently be transferred without fail selectively onto a different line of transport. The apparatus includes a primary conveyer in which a continuous substrateA is transported having labelsA-D, which are spaced apart from each other by a given distance and arranged in rows and columns, formed thereon and peelably adhered thereto. The primary conveyer includes a transport turn-back memberA for permitting labelsA-D for each row concurrently to peel off the continuous substrate. In the apparatus, a label peeled off by the transport turn-back memberA and found defective is subjected to an air blast by an air-blasting memberA,B,C,D and is thereby oriented in transport towards a conveyer for defective labelsand adhered to on the conveyer for defective labelswhile it is held by a label holding memberformed with an air draining ventC.

Label separating apparatus

In an exchangeable cylinder type rotary press driven by a prime mover, it is made possible to make a print of any top-bottom length as desired, independently of a gear train that transmits power from the prime mover to an exchange cylinder unit. To this end, the peripheral length of each of the rotary cylinders-in the exchange cylinder unitis set at a length according to a top-bottom length of a print to be made, a profile-shifted gear is used as at least one of driven gears-which are provided for the rotary cylinders, respectively, and have an identical number of teeth so that the driven gears can be engaged with one another while positioning the rotary cylinders in rotational contact with one another, the printing unitis provided in the exchange cylinder unit with a driving gearadapted to be disengageably in engagement with one of the driven gears for driving the exchangeable cylinders, the driving gear being provided independently of the rotary printing paper feed means; and a motorwhose rotation is controllable is coupled to the driving gear.

Exchangeable cylinder type rotary press

Disclosed are a method and an apparatus designed to make a window envelope rapidly using a water-soluble clarifying agent without causing an inconvenience in its window area. Upstream of an envelope making stage wherein a continuous paper while traveling along a continuous path of travel is successively folded, pasted and cut to form an envelope, a water-soluble clarifying agent is applied to an area on the continuous paper that is designed to become the transparent window in the envelope and the continuous paper carrying the clarifying agent is wound on a plurality of drying cylinders so that its surface carrying the clarifying agent faces outwards to dry the clarifying agent while holding the surface of paper carrying the clarifying agent out of contact with the drying cylinders.

Apparatus for making window envelopes

A form dampening roller driving apparatus in which to obviate a hickey a slip is caused to occur between a form dampening roller and a plate cylinder in their mutual area of contact by rotationally driving the form dampening roller and the plate cylinder so they rotate having a difference in peripheral speed between them, and wherein the peripheral speed of the form dampening roller is made variable as desired to make the slip ratio between it and the plate cylinder in their mutual area of contact variable as desired. To this end, the form dampening roller is geared to a vibrator roller, and independent of a main motor for rotationally driving the plate cylinder there is provided a further motor for rotationally driving the form dampening roller independently of the plate cylinder at a rate of rotation that is made arbitrarily variable.

Form dampening roller driving apparatus

A rotary offset printing press which has a series of printing units of identical make through which a web of paper is threaded. In each printing unit the blanket cylinder is made displaceable into and out of printing engagement with the plate cylinder and the impression cylinder. The cylinders of each printing unit are driven from a separate variable-speed motor via a train of gears which stay intermeshed whether the blanket cylinder is in or out of printing engagement with the other cylinders. A clutch is inserted between the drive linkage and the impression cylinder for connecting and disconnecting the latter to and from the former. A plate change is possible in any of the printing units by moving the blanket cylinder out of printing engagement with the plate cylinder and the impression cylinder, and declutching the impression cylinder from the drive linkage, in that printing unit while the other printing unit or units are in continuous operation for printing the web.

Growing community of inventors

Narashino, Japan

Masahiro Naka