Twine force sensing apparatus for use on a rectangular baler

Details Twine force sensing apparatus for use on a rectangular baler Twine force sensing apparatus for use on a rectangular baler

1993-03-16

1994-09-20

Gerrity, Stephen F.

Presses

Binding

With automatic or material-triggered control

56343, 100 18, 100 23, 100 43, 100191, B65B 5710, B65B 1326

Patent

active

053479203

ABSTRACT:
A rectangular baler is disclosed comprising a bale case (6) into which successive charges of crop material are introduced; a plunger (7) disposed for reciprocating movement in the bale case (6) to compact the charges while advancing the compacted charges toward an exit opening in the bale case; and a knotter (8) for tying a flexible binding material, such as twine, in a form-stabilising manner around successive increments of compacted crop material while they advance in the bale case (6) to form bales. An elongated sensor (48), disposed on the knotter (8) in the trajectory of the flexible material (49) projecting from a twine holder (32) towards a billhook (33), is operable to detect the tensile forces occurring in the binding material during bale formation and to produce signals, which are processed by a microprocessor (24) to, if found necessary, lower the density of the bales in order to avoid twine failure.

REFERENCES:
patent: 3416824 (1968-12-01), Nolt et al.
patent: 3851575 (1974-12-01), Cardoza
patent: 4095520 (1978-06-01), Burford
patent: 4196661 (1980-04-01), Yatcilla et al.
patent: 4624180 (1986-11-01), Strosser
patent: 4765235 (1988-08-01), Schrag et al.
patent: 4885991 (1989-12-01), Borba
patent: 4930411 (1990-06-01), Naaktgeboren
patent: 4993317 (1991-02-01), Collot et al.

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