The machine used to produce PVC soft door curtains is typically a PVC soft door curtain extruder, primarily composed of the following components:
The extruder in the PVC soft door curtain extruder: Common models include the SJ-75, SJ-90, and SJ-120 single-screw extruders. This extruder heats and plasticizes the PVC raw material, extruding it into a molten state. The rotation of the screw propels the material forward while also compacting and mixing it.
The die in the PVC soft door curtain extruder: Typically a T-shaped die with an adjustable elastic die or a sheet extrusion die. The material flows and forms within the die, allowing PVC soft door curtains of varying widths and thicknesses to be produced according to production requirements.
The three-roll calender in the PVC soft door curtain extruder: The sheet extruded from the die is heated, and the three-roll calender calenders gradually cool it while also providing a certain degree of traction, ensuring consistent speed at all points on the sheet and ensuring sheet flatness. Three-roll calenders are available in various configurations, including flat three-roll, vertical three-roll, and 45-degree angled three-roll. The cooling and shaping bracket is located between the three-roll calender and the haul-off machine. It typically consists of multiple stainless steel rollers, allowing the sheet material to dissipate heat naturally in the air. The length of the cooling bracket is determined based on the thickness of the sheet material, allowing the sheet material to cool and form.
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The haul-off machine of the PVC soft curtain extruder typically consists of two rollers or rubber rollers, which evenly pull the cooled and shaped PVC soft curtain material to the cutting device or winder.
The winder of the PVC soft curtain extruder is a commonly used winder with a double-station air-expansion shaft, offering adjustable speed and winding tension.
Other auxiliary equipment includes fully automatic vacuum or screw loaders, drying hoppers, three-in-one water temperature controllers, and oil-type temperature controllers. These assist with material transportation, drying, and temperature control, ensuring stable operation throughout the production process.
