Wrapping machine

Details Wrapping machine Wrapping machine

1997-10-22

1999-03-02

Johnson, Linda

Package making

Apparatus for contraction of cover by stretching or shrinking

53588, 425 66, B65B 5300

Patent

active

058756167

ABSTRACT:
A wrapping machine for winding a web (1) of wrapping film from a roller (2) around an object to be packaged. The wrapping machine has a film dispenser (3) which comprises a frame (4) provided with at least one guide means (5, 11) in contact with the first side (1.sup.1) of the film 1 to guide the film; an openable gate section (7) provided with at least one guide means (8, 12) which is in contact with the opposite side (1.sup.2) of the film relative to the first side, the gate section (7) being pivoted on the frame (4) so that it can be moved between an open position (I) and a closed position (II); and a pre-stretching device (10) for preliminary stretching of the film. The pre-stretching device comprises a first pre-stretching roller (11) and a second pre-stretching roller (12). One of the pre-stretching rollers (11, 12) is connected to the frame (4) and the other one is connected to the gate section (7) in such manner that one of the pre-stretching rollers (11, 12) is disposed in contact with the first side (1.sup.1) of the film while the other one is in contact with the other side (1.sup.2).

REFERENCES:
patent: 4302920 (1981-12-01), Lancaster et al.
patent: 4387548 (1983-06-01), Lancaster et al.
patent: 4718219 (1988-01-01), Schmitz
patent: 4747254 (1988-05-01), Lancaster
patent: 5414979 (1995-05-01), Moore et al.

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