Sheet feeding or delivering – Delivering – With transfer means between conveyor and receiver
Patent
1987-07-21
1989-09-05
Rolla, Joseph J.
Sheet feeding or delivering
Delivering
With transfer means between conveyor and receiver
271265, 271270, 271203, 198460, B65H 4300
Patent
active
048631540
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE ART
The present invention relates to a conveyor system for carrying planar objects by way of a conveyor belt and the like.
BACKGROUND OF THE INVENTION
Corrugated cardboard boxes have been designed with a variety of sizes, shapes and in a variety of multicolor printings these days, and in coping with such designs, there have been presented a variety of functions of the machine for manufacturing the corrugated cardboard boxes, accordingly. Now, referring to the conventional construction of the corrugated cardboard box manufacturing machine with reference to FIGS. 1 through 4, there are shown provided a blank board supply station 1, a first printing machine 2, a second printing machine 3, printing cylinders 4, a transfer conveyor 5, a rotary die cutting station 6, a anvil cylinder 7, a die-cut cylinder 8, a die element 9, a board delivery conveyor (a scrap conveyor; a conveyor for a planar object) 10, a sheet of corrugated board 11, a die board 11' (through the single-cutting process), a died board 11" (through the double-cutting process), a stacker-conveyor 12, a counter-stacker 13, a board stopper 14, a spacing 16, a lifter 17, and a counting photoelectric tube 18, wherein a sheet of corrugated cardboard 11 is fed for printing by the board supply station 1 with such a rate of delivery of a sheet per single rotation of the printing cylinders 4 in the printing machines 2, 3, thereafter is delivered outwardly by the transfer conveyor 5 for having the printing ink put in the surface of a cardboard 11 dried up, and then is died to a shape of cardboard box by way of the rotary die cutter 6. The die element 9 comprises a cutting knife edge or the like implanted around the circumferential surface of a curved veneer board of a specified thickness, which is to be mounted onto the die-cut cylinder 8 by using bolts, and is adapted to cut and die a sheet of cardboard 11 to be fed from the foregoing step into the nip with the anvil cylinder 7, which is wrapped with a layer of urethane rubber or the like for making the cutting easier and preventing the wear of cutting edge, with a predetermined timing of cuting and dieing. The delivery conveyor (scrap conveyor) 10 is formed by a plurality of such carrier members as V-shaped belts or ropes having a circular section in an attempt to promote the dropping of chippings and cuttings from the product at the area where there is provided a specific means such as an air blower or a vibrator, and is constructed in a duplex structure for carrying the died board 11' in a sandwiched relationship over to a stacker-conveyor 12. There is provided a suction equipment in the stacker-conveyor 12, which is adapted to attract by sucking and deliver the died cardboard 11' at a slow speed in the attempt to reduce a impace shock of the board against the cardboard stopper 14 provided in the counter-stacker 13 when hit, thus obviating a possibility of damages and/or irregular stacking of the cardboards from occurring when stacked upon the lifter 17. Also, the cardboard stopper 14 is designed shiftable back and forth by way of a hydraulic cylinder or the like in accordance with a given width of the died board 11' as schematically shown in FIGS. 1 and 2.
The cardboard box manufacturing machine is of the type that a sheet of cardboard 11 may be set either for one-piece cutting or for longitudinal double-piece cutting according to the size of a box to be died by using the die element 9 of the rotary die cutter 6. FIG. 3(III) shows the case of the single-piece cutting process, FIG. 4(III) shows the longitudinal double-piece cutting, and FIG. 4(IV) shows the four-piece cutting process (double-cuttings in the transversal and longitudinal ways making four pieces of boards), respectively. The die element 9 is to be set in the circumferential surface of the die cut cylinder 8, with a single-piece or double-piece cutting knife element implanted in working position in accordance with the size of a product box to be manufactured, and with a spacing 16. This spacing 16 is provided for the reduct
REFERENCES:
patent: 4451027 (1984-05-01), Alper
patent: 4541624 (1985-09-01), Sasage et al.
patent: 4632378 (1986-12-01), Sardella
Hirakawa Tadashi
Yano Tadashi
Mitsubishi Jukogyo Kabushiki Kaisha
Parker Stephen B.
Rolla Joseph J.
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