Film unwind system with hinged spindle and electronic control of web tension
First Claim
1. A film supply apparatus for a foam-in-bag dispenser system, comprising:
- a support member;
a spindle supported by said support member, said spindle having a support extension for receiving a roll of film for use;
and a spindle-to-support connector, with said spindle-to-support connector supporting said spindle for adjustment of said spindle between a film feed to dispenser mode position and a film roll replacement position different than said film feed to dispenser mode position.
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Accused Products
Abstract
A film supply apparatus supplying film in a foam-in-bag system having a film feeding device for feeding film from a film source to a location for bag formation, a bag forming apparatus, a foam material dispenser positioned for feeding foam material for reception in a bag of the bag forming apparatus, and a web tensioning system with a web tensioning driver in driving communication with the film source and which is in communication with a controller for monitoring the film feed and web tension states and directing adjustments in the web tension system. The web tensioning driver is arranged to move film backwards or in a direction opposite to a direction of film feed induced by the film feeding means and with the film source including a roll of film and the web tensioning system including a drive transmission in communication with the roll of film for rotational driving of the roll of film and also in communication with web tensioning driver. There is further featured a spindle support for supporting the roll of film and a roll film core drive insert.
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Citations
45 Claims
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1. A film supply apparatus for a foam-in-bag dispenser system, comprising:
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a support member;
a spindle supported by said support member, said spindle having a support extension for receiving a roll of film for use;
and a spindle-to-support connector, with said spindle-to-support connector supporting said spindle for adjustment of said spindle between a film feed to dispenser mode position and a film roll replacement position different than said film feed to dispenser mode position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 32, 33)
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11. A film supply apparatus for use in a foam-in-bag dispenser, comprising:
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a film source support for supporting a film source;
a film source driver;
a film source drive transmission in driving communication with said film source driver;
a film feed roller set positioned downstream with respect to film travel to said film source support, a film feed driver in driving communication with said film feed roller set;
said film source drive transmission being in driving communication with said film source supported on said film source support to provide film web tensioning in the film being drawn by said film feed roller set. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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34. A film supply apparatus for supplying film in a foam-in-bag system, comprising:
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film feeding means for feeding film from a film source to a location for bag formation;
a bag forming apparatus;
a foam material dispenser positioned for feeding foam material for reception in a bag of said bag forming apparatus;
a web tensioning system having a web tensioning driver in driving communication with the film source;
a controller for monitoring the film feed and web tension states and directing adjustments in said web tension system. - View Dependent Claims (35, 36, 37, 38, 39, 40)
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41. A method of supplying film to a foam-in-bag dispenser comprising:
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feeding with film feeding means film from a film source past a foam dispenser;
maintaining a tension state in the film being fed by the film feeding means with a web tension system which is in driving engagement with the film source by way of a drive transmission connection to the film source. - View Dependent Claims (42, 43, 44)
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45. A film roll core insert for use in a web tension system of a foam-in-bag system, comprising an annular ring dimensioned for securement within a core end of a film roll and having rotation drive meshing means for rotational drive engagement with a driver of the web tension system.
Specification