Magnetic levitation bag opening device

Abstract

The invention discloses a magnetic-suspension bag opening device. The magnetic-suspension bag opening device is provided with a magnetic suspension assembly for spending a core rod assembly to form a gap between the core rod assembly and a bag opening channel; the core rod assembly comprises a hollow pipe and a bag conveying assembly capable of stretching out and drawing back at the head of the hollow pipe; an inwards sunken cambered limiting groove is formed in the outer surface of the hollow pipe; a mounting base is provided with an adjusting shaft for limiting the axial movement of the hollow pipe on one side of the bag opening channel; side grooves for the portions, bloating towards both sides, of a packaging bag to pass through are formed on the two sides of the bag opening channel in the axial direction. The magnetic-suspension bag opening device has the following advantages: the device is scientific in structure, smooth in bag opening, good in compatibility and high in working efficiency; full-automatic unmanned operations are realized to meet the automation requirement of assembly line production, and therefore, the labor cost is greatly saved, and meanwhile, the labor intensity and the occurrence of production safety accidents are reduced; man-made problems such as profile scratching and packaging bag breaking occurring during artificial packaging can be avoided; and the problems of large packaging bag opening resistance and the compatibility of packaging bags different in specification are effectively solved.

Description

technical field [0001] The invention relates to a packaging machine for profiles, in particular to a bag opening device for an automatic packaging machine for long profiles. Background technique [0002] The existing long material profile packaging, generally after the product is offline, in order to protect the long material profile from being scratched, it needs to be covered with plastic film and other packaging protection measures. If it is packaged by hand, the work efficiency is low and the labor cost is high. ; the labor intensity is high, and it is easy to cause safety accidents; it is easy to cause problems such as surface scratches and other artificial damage to the product; the long material profiles to be packaged also occupy the storage space; Pipes, there may also be problems with pipe indentation. Especially when the strip-shaped packaging bags that are flattened by reducing volumes are continuously placed on the long material profile, there are problems such...

AI Technical Summary

Problems solved by technology

But the bag-opening device of this structure, due to the gravitational effect of the bag-opening rod, the packaging bag is pressed down, and the gravity of the bag-opening rod is converted into the resistance that the packaging bag advances. The friction between 11 is relatively large, and it is easy to open the bag not smoothly, and even the problem of breaking the overpacking bag; moreover, in the face of packaging bags with different sizes and opening diameters, bag opening rods of different calibers are required. Channel 11 to match, poor compatibility, not conducive to reducing the cost of equipment

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