Abstract: A central positioning device for a labeling machine of heat shrinkable film includes an upper section and a lower section connected to each other with a fastener; a positioning member provided at an upper end of the lower section; the upper section revolving to adjust for an angle and secured by the positioning member; the film passing through the upper section being pushed downward to change its orientation; a logo on the film falling on a square bottle exactly as required; and folding marks of the film merely falling on the corners of the bottle without displacement to ensure the precise location of the subsequent film to wrap around the bottle.

Abstract: A central positioning device for a labeling machine of heat shrinkable film includes an upper section and a lower section connected to each other with a fastener; a positioning member provided at an upper end of the lower section; the upper section revolving to adjust for an angle and secured by the positioning member; the film passing through the upper section being pushed downward to change its orientation; a logo on the film falling on a square bottle exactly as required; and folding marks of the film merely falling on the corners of the bottle without displacement to ensure the precise location of the subsequent film to wrap around the bottle.

Abstract: A shrinkable label inserting machine with a modified central holder, a driving system, a cutting system, and a loading system is provided. The machine features a central holder having an upper post and a lower post bolted together with a screw and having an annular groove formed where the posts are bolted together. A passage is provided at the base of the lower post through which the top of a bottle is detected by an electric eye. Each of the driving and loading systems include two rollers between which the spacing is adjustable. A cutting system has a circumferential arrangement of a plurality of pulleys, each having a blade affixed thereto, and each pulley is coupled for synchronous movement with a timing belt. The arcs of the blades overlap to ensure a complete ring is cut around the circumference of the shrinkable label.