Stretching mechanism for dimming greenhouse film production

Abstract

The invention belongs to the technical field of plastic film processing, and discloses a stretching mechanism for dimming greenhouse film production, which comprises a plurality of groups of support platforms, for example, a mounting block is arranged above the support platform, and an upper stretching roller frame and a lower stretching roller frame are fixedly mounted at the bottom of the mounting block and the top of the support platform respectively; and four operation boxes are fixedly mounted at the top of the supporting platform. Through cooperation of a second spring damping rod assembly and a pressing limiting block and precise meshing of a worm and a worm wheel, an operator can accurately adjust the vertical height of an installation block, and therefore it is guaranteed that the distance between a lower stretching roller frame and an upper stretching roller frame is accurately controlled, and the lifting mechanisms are arranged at the top of each supporting platform, so that the working efficiency is improved. The multiple lifting mechanisms can work synchronously, accurate control over the vertical height of the upper stretching roller frame can be achieved through one-time adjustment, and the adjustment time is greatly shortened through the synchronous adjustment mode.

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