A winding device for bopp film

Abstract

The invention provides a winding device for BOPP film, which belongs to the technical field of machinery. It solves the problems in the prior art that the film needs to be manually cut off after the winding is completed, which is time-consuming and labor-intensive. The winding device of the BOPP film includes a base and a bracket one arranged on the base. The bracket one includes two columns, a winding shaft is arranged between the two columns, a winding cylinder is arranged on the winding shaft, and one end of the winding shaft is arranged There is a power mechanism; the right side of the support one is provided with a support two, and the support two includes a fixed plate, and the fixed plate is provided with a clamping mechanism and a slitting blade, and the slitting blade is connected with a sliding mechanism that can drive it to slide horizontally; The right side of the frame is provided with a bracket three, and the bracket three includes two mounting plates, and a tensioning mechanism capable of tensioning the film is arranged between the two mounting plates. The present invention can realize the self-cutting of the film after winding through the clamping mechanism.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to a winding device for BOPP film. Background technique [0002] BOPP film is the abbreviation of "Biaxially Oriented Polypropylene", that is, biaxially oriented polypropylene film. Its production is to melt and extrude the raw material of high molecular polypropylene through an extruder to form a melt, and then make a sheet or a thick film through a long and narrow head, and then in a special stretching machine, at a certain temperature and setting Stretching on vertical longitudinal stretching machine and transverse stretching machine simultaneously or step by step at a certain speed, and after proper cooling, heat treatment or special processing, it is made into a film, and then it is made into a film by tensioning and winding. Semi-finished products are finally cut into finished products of appropriate width using a slicer. [0003] In order to ensure the winding of film semi-f...

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Problems solved by technology

[0003] In order to ensure the winding of film semi-finished products at different speeds, the winding device needs a tension adjustment mechanism. In the BOPP film production line, the winding device of the extruder generally has the following two types. One is to use the mechanical structure to make the film winding drum However, due to the characteristics of thin film, easy to break and easy deformation, the winding of this kind of winding device can easily cause film breakage or film deformation; the other is electronic control, according to the state of the extruder , film output speed, temperature and other conditions to control the tension of the winding drum, but the cost of this control device is relatively high, which increases the production cost of the already expensive extruder, which is not conducive to the development of the industry

[0004] Moreover, in the existing film winding device, when the film winding is completed, the film is cut off manually to stop the continuous winding, which is time-consuming and labor-intensive, and the degree of automation is low; at the same time, the winding drum after winding cannot Guaranteed to have the same thickness

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