Self-adaptive rewinding device

Abstract

The invention discloses a self-adaptive rewinding device. The self-adaptive rewinding device comprises a main machine frame, wherein an auxiliary machine frame and a film winding roller which is driven by a driving device II to rotate around the axis of the film winding roller are further arranged on the main machine frame, at least one swing arm which swings in a certain range and a reset deviceenabling the swing arm to have a reset tendency are arranged on the auxiliary machine frame, a detector for detecting the swing angle of the swing arm and a pressing wheel are arranged on the swing arm, the swing arm rotates around a rotating shaft of the swing arm and the detector acquires corresponding angle data under the effect upon the pressing wheel of the swing arm from a thin film on the film winding roller, and the driving device II outputs corresponding torque according to the angle data. The self-adaptive rewinding device has the beneficial effects that the rewinding rotating speedcan be automatically changed according to the thickness change of a wound film, so that the coiling quality is improved; and on the basis, the film winding roller can be quickly disassembled, so thatthe rewinding efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of packaging material production, and in particular relates to an adaptive rewinding device. Background technique [0002] Packaging roll film is one of the commonly used packaging materials for agricultural harvesting operations. It is soft in texture and has a large single packaging volume, so it is suitable for on-site packaging of economic crops such as cotton. The roll film is usually a plastic film, and its production process is often blown and stretched. In the final link of production, the film often needs to be wound on a paper tube for overall packaging and transportation. [0003] Due to the soft texture of the roll film, there will be uneven thickness changes due to too fast or too slow rotation speed during rewinding, which will eventually result in low roll quality of the film. In addition, after the film winding is completed, the entire film roll needs to be removed from the rewinding equipme...

AI Technical Summary

Problems solved by technology

However, the problem with this process is that in order to facilitate the removal of the film roll, the film roll is often installed in a non-fixed manner, and its two ends are directly supported on the corresponding parts of the frame, which causes the film roll It is installed in direct rolling contact with the frame bracket without using bearings, which will cause long-term rolling friction between the roll film roller and the frame and aggravate the loss of parts. If the bearing is installed, it will increase the difficulty of later disassembly, and also Accuracy will be affected by repeated disassembly and assembly

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