Pile board inserting method and a pile board inserting machine f

Details Pile board inserting method and a pile board inserting machine f Pile board inserting method and a pile board inserting machine f

1991-04-16

1993-08-31

Werner, Frank E.

Material or article handling

Apparatus for moving intersupporting articles into, within,...

Unstacking apparatus

4147967, 4147947, 4147888, 4147904, 414331, 414222, 101 37, B65G 5902

Patent

active

052403700

ABSTRACT:
A pile board inserting machine comprises two pile board inserting units installed in combination respectively with the two sheet piling units of a sheet-fed printing press. Printed sheet are delivered alternately to the two pile board inserting units every time a predetermined number of printed sheets are delivered to each sheet piling unit, and the pile board inserting unit associated with the inoperative sheet piling unit is operated to insert a pile board while the sheet piling unit is at rest. Each pile board inserting unit comprises a lifting bar for lifting stacked pile boards, a pile board inserting mechanism for pushing the top pile board into the sheet piling unit, a lower limit detecting switch for detecting the arrival of the lifting bard at a lowermost position, an automatic start switch which starts lifting bar raising operation only when the lower limit detecting switch is closed, warning means which provides an alarm upon the reduction of the number of pile boards on the lifting bars to a predetermined number, and stopping means for stopping the printing press after the duration of the alarm has exceeded a predetermined time. The pile board is inserted automatically into the sheet piling unit, and the operator is warned of the reduction of the pile board on the lifting bars by the alarm.

REFERENCES:
patent: 3381830 (1968-05-01), Vasse
patent: 3722713 (1973-03-01), Garabedian et al.
patent: 3770143 (1973-11-01), Breitbach
patent: 3869049 (1975-03-01), Selusnik et al.

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