top view of a portion of the stretch wrapping machine

According to the present invention, a dispenser is provided for dispensing and stretching packaging material. As displayed in Fig. 1, the dispenser involves stretch wrap dispenser 102, together with a mast 104, a roll carriage of stretch wrapping machine, plus a motor and belt drive 108 for vertically placement roll dispenser 106 on mast 104 to spirally wrap the burden. Roll carriage 106 could include a body 110, a film roll assistance 112 and a variety of rollers 114, possibly which includes prestretch rollers, to position, dispense, and stretch a packaging materials this type of stretch wrap film 116 becoming dispensed from stretch place film roll 118. Several other packaging components like strapping, banding and netting or tape can be used well.

The apparatus includes means for providing relative rotation between the dispenser and the load to wrap packaging material around the load, according to the present invention. As shown in Fig. 1, the method for providing family member rotation includes a engine driven turntable 120 attached to foundation 122 to turn fill 124 of fill products 126 about a straight axis 128.

On the other hand, the method for supplying relative rotation between the dispenser and also the fill can include an set up when the film dispenser involves the stress, so the orbital stretch wrapper dispenser might be maintained with a diamond ring or arm or other set up. The relative rotation may occur about a vertical axis as shown for pallet loads. Alternatively, may occur around a horizontal axis for bundling operations.

[0018]

According to one aspect of the invention, a retainer is provided for holding a leading end of the packaging material while initially wrapping the load, and for automatically releasing the packaging material in response to unpowered actuation.

[0019]

As shown in Fig. 1, the retainer features a gripper clamp 130, that is demonstrated in more detail by Figs. 2 by means of 5. Gripper clamp 130 can be seen to feature an elongated participant like tube 132 possessing a best plate 133 welded to 1 conclusion of pipe 132 to create one jaw 134, as well as a rod 131 slidable in tube 132 and welded to your secondly dish 135 to form a 2nd jaw bone 136 in a way that jaws 134 and 136 have opposing surface areas that will clamp packaging fabric between the two which will help prevent movements of your packaging material relative to the jaws.

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