Abstract:
Method and apparatus which facilitate the tearing of packing materials into desired lengths by pre-tearing them along the rows of perforations which are provided for that purpose. In the disclosed embodiments, a preconfigured packing material having inflatable chambers separated by rows of perforations is fed at a predetermined speed in a direction generally perpendicular to the rows and periodically pulled upon rather abruptly to produce a partial tearing of the material along central portions of the rows of perforations.
Abstract:
An apparatus for inflating and sealing packing cushions has a drive mechanism for feeding a preconfigured film material to a sealing mechanism in a flattened state without wrinkles in the sealing region in which a longitudinal seal is formed. In one aspect, the drive mechanism comprises a pair of upper adjacent belts and a backing element, such as a lower belt. The sealing mechanism may be a rotary sealing wheel that contacts the film material between the upper adjacent belts.
Abstract:
An apparatus for inflating and sealing packing cushions has a drive mechanism for feeding a preconfigured film material to a sealing mechanism in a flattened state without wrinkles in the sealing region in which a longitudinal seal is formed. In one aspect, the drive mechanism comprises a pair of upper adjacent belts and a backing element, such as a lower belt. The sealing mechanism may be a rotary sealing wheel that contacts the film material between the upper adjacent belts.
Abstract:
An apparatus for inflating and sealing packing cushions utilizes a controller adapted for acquiring information from preconfigured film material and automatically setting one or more operation parameters suitable for inflating and sealing the film. The controller can avoid or limit the need for user input, thus simplifying use of the apparatus.
Abstract:
An apparatus for inflating and sealing packing cushions utilizes a controller adapted for acquiring information from preconfigured film material and automatically setting one or more operation parameters suitable for inflating and sealing the film. The controller can avoid or limit the need for user input, thus simplifying use of the apparatus.
Abstract:
Method and apparatus which facilitate the tearing of packing materials into desired lengths by pre-tearing them along the rows of perforations which are provided for that purpose. In the disclosed embodiments, a preconfigured packing material having inflatable chambers separated by rows of perforations is fed at a predetermined speed in a direction generally perpendicular to the rows and periodically pulled upon rather abruptly to produce a partial tearing of the material along central portions of the rows of perforations.
Abstract:
An apparatus for inflating and sealing packing cushions utilizes a controller adapted for acquiring information from preconfigured film material and automatically setting one or more operation parameters suitable for inflating and sealing the film. The controller can avoid or limit the need for user input, thus simplifying use of the apparatus.
Abstract:
Dunnage making machine and method in which a web of paper is drawn across a forming bar (21) with curved end sections to roll the edge portions of the paper, then drawn through a first throat section to urge the rolled edge portions toward each other and cause them to gather (Fig. 6), and thereafter through a second throat section of lesser dimension than the first to gather the central portion of the paper and further gather the edge portions (Fig. 6).