Container metering device

Conveyors: power-driven – Conveyor system for arranging or rearranging stream of items – By longitudinally respacing successive articles in stream

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Details

1984193, B65G 4726

Patent

active

048321788

ABSTRACT:
A device (10) for metering containers (14) for use in packaging machines is disclosed as including a pin system (11) which is pivotally mounted about its drive shaft (22) relative to a conveyor (54). Pin system (11) includes a driven flexible member in the form of cross bars (16) mounted to a roller chain (18) in a generally elliptically shaped endless loop, with the pins (12) extending form the cross bars (16) and being operatively attached to cam followers (20) thereby. The elliptically shaped endless loop is supported by a cam support (24) extending between drive and idler sprockets (28, 32) for continuously changing the pitch angles of the pins (12) along a portion of the endless loop. The pin system (11) is variably positioned relative to the conveyor (54) by pivoting the pin system (11) about the drive shaft (22) such that the containers (14) initially contact the pins (12) at different segments of the endless loop portion along the cam support (24) and sprockets (28, 32) and are inserted into the windows between adjacent containers (14) to allow the device (10) to be easily and quickly changed over to meter different sized containers (14). In the preferred form, the pin system (11) is pivoted by a crank arm assembly (40, 42) which is pivoted by a worm gear drive (46, 48) rotated by a hand wheel (52).

REFERENCES:
patent: 3845852 (1974-11-01), Langen et al.
patent: 3872647 (1975-03-01), Langen et al.
patent: 3902587 (1975-09-01), Checcucci
patent: 4195723 (1980-04-01), Loewenthal
patent: 4296590 (1981-10-01), Focke
patent: 4320840 (1982-03-01), Braschos
patent: 4457121 (1984-07-01), Johnson et al.
patent: 4552261 (1985-11-01), Raudat et al.
patent: 4637509 (1987-01-01), Raudat et al.
StandardKnapp, Spectrum Tray Packers, Model 1000/1500.
APV Douglas Machine Corp., Pin Infeed.

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