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Functions of Each Equipment in the Profile Production Line

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2018-08-15

1. Extrusion Section: For producing profiled extrusions with small cross-sectional dimensions, single-screw extruders or co-extrusion processes are typically chosen to minimize waste of production resources and energy. The selection of a single-screw extruder depends on two primary factors: first, the size of the product’s cross-section; and second, the required production capacity. Larger extrusion output generally calls for a larger screw diameter; similarly, as the cross-sectional area of the profile increases (i.e., the cross-sectional dimensions become larger), the screw diameter must also be increased. 2. Extrusion Die: The extrusion die is the key component responsible for shaping the final product. Its function is to continuously and uniformly convert the cylindrical molten material supplied by the extruder into a well-plasticized form that conforms to the desired channel cross-section and geometric dimensions.

1. Extrusion section: For the production of profiled materials with small cross-sectional dimensions, it is generally advisable to select… Single-screw extruder Alternatively, co‑extrusion can be employed for molding and processing to minimize the waste of production resources and energy. The selection of a single‑screw extruder depends on two primary factors: first, the dimensions of the product’s cross‑section; and second, the required production capacity. As extrusion output increases, so does the screw diameter; likewise, for profiles with larger cross‑sectional areas (i.e., larger dimensions), the screw diameter is also increased.

2. Extrusion die: The extrusion die is the primary component for shaping the final product. Its function is to continuously and uniformly convert the cylindrical molten material supplied by the extruder into a well‑plasticized parison that matches the cross‑sectional shape and geometric dimensions of the die channel. Subsequently, through cooling and other processing steps, a high‑quality profiled extruded product is obtained.

3. Cooling and Shaping Section: The cooling and shaping table is equipped with a water tank and a water circulation system; the tank is made of stainless steel, and cooling is achieved through circulating water spray. The shaping table features front-to-back movement as well as left–right and height adjustment mechanisms.

4. Traction Section: The traction unit continuously and automatically draws the cooled, hardened sealing strip out from the die head; it is equipped with variable-frequency speed control.

5. Cutting and Collection Section: After the limit switch controls the process according to the required length, automatic cutting is performed, followed by a delayed push‑down action to enable continuous production. The cutter uses the fixed‑length switch signal as its command to complete the entire cutting cycle. During cutting, it remains synchronized with the profile’s forward movement. The cutting operation is driven by both electric and pneumatic systems, and a dust‑extraction device is installed to promptly remove the chips generated during the process.