PVC sheet calendering equipment and calendering process

Abstract

The invention relates to the technical field of agricultural greenhouses, and discloses PVC sheet calendering equipment and calendering technology.The PVC sheet calendering equipment comprises a bottom box, a first motor is fixedly connected to the inner bottom wall of the bottom box, a shaft rod is fixedly connected to the left side of the first motor, a first gear is fixedly connected to the left end of the shaft rod, and a threaded rod is movably connected to the inner bottom wall of the bottom box; the outer side of the bottom end of the threaded rod is fixedly connected with a second gear, the top end of the threaded rod is in threaded connection with a threaded pipe, and the left side of the threaded pipe is fixedly connected with an extrusion rod. According to the PVC sheet calendering equipment and the calendering process, a second gear is arranged at the bottom end of a threaded rod, a threaded pipe is arranged at the top end of the threaded rod, the top end of the threaded pipe is fixedly connected with a second motor, a middle shaft rod is arranged at the top of the second motor, and due to different heights of greenhouses, the threaded pipe can well adjust the height of the middle shaft rod; the second motor can well control the horizontal direction of the middle shaft rod, the physical strength of workers is greatly saved, and the snow cleaning speed is increased.

Description

technical field [0001] The invention relates to the technical field of agricultural greenhouses, in particular to a PVC sheet calendering equipment and a calendering process. Background technique [0002] With the production of high molecular polymers-polyvinyl chloride and polyethylene, plastic films are widely used in agriculture. In the early 1950s, Japan and European and American countries successfully applied greenhouse films to cover hotbeds, and then covered small sheds and greenhouses with good results. , my country introduced polyvinyl chloride agricultural film in the autumn of 1955. It was first used in small sheds to cover vegetables in Beijing, and achieved the effect of early maturity and increased production. Greenhouses were originally special equipment for vegetable production. With the development of production, the application of greenhouses has become more and more extensive. At present, greenhouses have been used for potted and cut flower cultivation; frui...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a PVC sheet calendering equipment and calendering process, which has the advantages of fast snow removal speed, relatively simple operation, saves the physical strength of the staff, greatly shortens the working time, etc., and solves the problem of clearing snow. The snow speed is relatively slow and the operation is relatively complicated, which wastes a lot of physical strength of the staff and greatly prolongs the working time

Images