Semi-automatic film cutting/clamping device and its operating method

Abstract

A system and method for severing a wrapping film for the detachment and attachment of trailing and leading end portions of the wrapping film from and onto loads disposed at a wrapping station comprises an actuating arm movable between retracted and extended positions and upon which a fixed clamping member and a movable clamping member are mounted. Upon termination of a wrapping operation, the actuating arm is moved from its retracted position to its extended position, the clamping members are moved to their CLOSED position so as to clamp a portion of the wrapping film therebetween, and a hot-wire cutter is energized so as to sever a portion of the clamped film. A trailing end portion of the wrapping film is thus released for self-adherence to the wrapped load, while a leading end portion of the wrapping film is maintained clamped between the clamping members in preparation for self-adherence to a new load to be wrapped. When wrapping of the new load is commenced, the movable clamping member is moved to its OPENED position such that the clamped leading end portion of the wrapping film is released for self-adherence to the new load to be wrapped, and the actuating arm is returned to its retracted position.

Description

technical field [0001] This invention relates generally to articles, goods or parcel wrapping machines, apparatus or systems, and more particularly to a new and improved mechanism or system for use with articles, goods or parcels wrapping machines, apparatus or systems whereby Effectively and semi-automatically applies the leading edge of the wrapping film to the article, shipment or package at the beginning of the wrapping cycle of the article, shipment or package, and the wrapping film at the end of the wrapping cycle of the article, shipment or package The trailing edge part of the film is separated or cut off from the object, cargo or package, avoiding the need for the operator to manually attach the leading part and the trailing edge part of the wrapping film to the object, cargo or package or cut it off . Background of the invention [0002] Wrapping machines, devices or systems for wrapping objects, packages or goods in suitable wrapping f...

AI Technical Summary

Problems solved by technology

Second, when the semi-automatic wrapping device or system disclosed in the aforementioned patent is used in a semi-automatic mode of operation to separate, terminate or sever the tail of the wrapping film from the roll of wrapping film, there is no corresponding means or mechanism for wrapping the leading end of the wrapping film fixed, attracted or attached to the object, goods or packages to be wrapped or packaged

In particular, according to the disclosure of the aforementioned patents, in order to start a new wrapping or wrapping cycle, the operator must grasp the free front end 70 of the wrapping or wrapping film, which is complementary to the piercing, tensioning and elongating of the wrapping or wrapping film. The aforementioned tearing or separation process is easier to wrap or wrap the trailing end of the packaging film, and the operator must manually press or fix the free front end 70 of such wrapping or wrapping film to each item to be wrapped or packaged, on goods or packages

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