Composite film forming equipment for environment-friendly TPU car cover film production and using method thereof

Abstract

The invention discloses composite film forming equipment for environment-friendly TPU car cover film production and a using method thereof in the technical field of car cover film manufacturing. The composite film forming equipment for environment-friendly TPU car cover film production comprises a main body frame, wherein the main body frame comprises a TPU roller which is rotationally connected with the inner side wall of the main body frame, a PET roller which is arranged on the upper right portion of the TPU roller and rotationally connected with the main body frame, a displacement assembly which is slidably connected with the inner side wall of the main body frame, and a speed change assembly which is rotationally connected with the outer side wall of the main body frame, the displacement mechanism is pushed by virtue of winding thickness so that the position of a belt clamping block in the speed change mechanism can be changed, the rotating radius of the belt clamping block is increased through expansion of a tensioning wheel on a speed change belt, and the linear speed is increased accordingly; and at the moment, the rotation of the speed change belt is accelerated, then the rotating speed of a driving gear and the rotating speed of a driven gear are driven to be accelerated, the rotating speed of a rubber driving roller and the rotating speed of a steel driven roller are accelerated, and therefore the rotating speeds are effectively adjusted to prevent the car film from tensile deformation or breakage caused by the rotating speed difference when the car film is wound.

Description

technical field [0001] The invention relates to the technical field of car coating film manufacturing, in particular to an environment-friendly composite film-forming device for producing TPU car coating film and a method for using the same. Background technique [0002] In today's automobile development process, automobile accessories are constantly being updated and optimized. Among them, the car film of the car is also developing in the direction of environmental protection. The car film is pressed by composite materials. Manufactured, the manufactured car film can effectively reduce the scratches of the car body and the reflection of light. [0003] Chinese patent CN201822197870.9 discloses a calendering device for a TPU composite film production line, which belongs to the technical field of TPU film production equipment, and solves the problem of existing calendering devices in which all the rollers are steel rollers or the first roller is a rubber roller, and the secon...

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Problems solved by technology

[0006] The purpose of the present invention is to provide an environment-friendly composite film-forming equipment for the production of TPU car film and its use method. The thickness of the car film is increased to drive the displacement mechanism to move slowly, so that the speed change assembly is driven by the power of the drive assembly. Change the linear speed of rotation, and then speed up the rotation speed of the active rubber roller and the driven steel roller, so that the winding speed and the calendering speed are kept consistent, and the problem of deformation or breakage of the car film due to internal tension caused by inconsistent speed is solved

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