Five-roller calender for PVC film production

Abstract

The invention discloses a five-roller calender for PVC film production. The five-roller calendar comprises a first bracket, a base, a water tank and a second bracket. The first bracket and the secondbracket are respectively installed at two ends of the base top, and an active pressure roller, a first driven pressure roller, a second driven pressure roller, a third driven pressure roller and a fourth driven pressure roller are successively mounted between the first bracket and the second bracket in an inverted L-shape. A servo motor is mounted on one side of the second bracket, and the outputend of the servo motor extends into the second bracket and is equipped with a first speed reducer, the output end of the first speed reducer is fixedly connected to one end of the active pressure roller, and a water tank is installed at the top of the base on one side of the first bracket away from the second bracket. The five-roller calender for PVC film production provided by the invention is equipped with the first bracket, the base, the water tank and the second bracket, and a sliding shaft is equipped with calibration tail, so that the device can adjust the use distance of two baffle plates on the sliding shaft according to production requirements, and is convenient for calendaring production of materials with different widths.

Description

technical field [0001] The invention relates to the field of calender extrusion, in particular to a five-roll calender for PVC film production. Background technique [0002] The calender is composed of two or more rollers arranged in a certain form. At a certain temperature, the rubber or plastic is pressed and stretched into a film with a certain thickness and surface shape, and the fiber cord canvas or steel cord can be processed. Glue-hanging machine, the main component of PVC is polyvinyl chloride, which is light yellow translucent and shiny. It is a polymer material that uses a chlorine atom to replace a hydrogen atom in polyethylene. The existing one is used for PVC film. The production calender cannot adjust the thickness of the PVC film according to the production demand, nor can it accurately set the production width of the material during production. At the same time, the temperature of the calender roll cannot be controlled during the production process, which wil...

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Problems solved by technology

[0002] The calender is composed of two or more rollers arranged in a certain form. At a certain temperature, the rubber or plastic is pressed and stretched into a film with a certain thickness and surface shape, and the fiber cord canvas or steel cord can be processed. Glue-hanging machine, the main component of PVC is polyvinyl chloride, which is light yellow translucent and shiny. It is a polymer material that uses a chlorine atom to replace a hydrogen atom in polyethylene. The existing one is used for PVC film. The production calender cannot adjust the thickness of the PVC film according to the production demand, nor can it accurately set the production width of the material during production. At the same time, the temperature of the calender roll cannot be controlled during the production process, which will cause the material to be overheated during the calendering process. Or too low will cause the melting point of the material to be too high and viscous, or the melting point will not be enough to cause the viscosity to decrease, so it cannot be calendered

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