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Forming process of PVC steel wire transparent hose
time:2022-06-08 17:44:24
PVC transparent plastic hose, PVC plastic hose and PVC steel wire transparent hose have the characteristics of high pressure resistance, tensile resistance, oil resistance, acid and alkali resistance and good transparency. PVC steel wire transparent hose is widely used in automobile, ship, machinery, petrochemical and other industrial suction, and can transport a variety of liquid and gas.
Forming principle of PVC steel wire transparent hose
PVC plastic hose refers to the hose reinforced by PVC, glass fiber, metal wire and other recycled fabrics as the middle interlayer of the hose. The key way to wrap the fabric is to wrap the inner and outer patterns of the fabric. At present, the outside mold winding method is mostly used in foreign countries, which can produce ideal PVC steel wire transparent hose.
Process flow of PVC steel wire transparent hose
Batching → mixing granulation → I extruder extruding inner wall tube blank → cooling → winding → extruding outer layer by No.2 extruder → cooling → traction → light inspection → coiling → packaging → finished products.
PVC steel wire transparent hose forming equipment and device design, PVC steel wire transparent hose forming equipment, by the main extruder, secondary extruder, die, air cooling device, weaving device and traction, light inspection, coiling device.
1. Main and auxiliary extruders
The specification of PVC steel wire transparent hose is generally in the range of Φ L2 - Φ 50mm. Therefore, the selection of Φ 45mm can be achieved by extruder. The length diameter ratio L / D of the screw is 20, which is heated in four sections and stepless speed regulation. The center height of both machines is 100 mm.
2. Die head
The design of the machine head depends on the size of PVC steel wire transparent hose, and its reasonable design directly affects the forming quality of the pipe.
3. Winding device
It is composed of left and right weft weaving shuttles and fixed axis. According to the enhancement index, one or more groups of winding devices can be designed. For each group of winding devices, multiple left and right weft threads and multiple diameter wires can be designed. The left and right shuttles are installed at both ends of the fixed axis, and 1 ~ 1 ~ 1 ~ 2 is added to each rotating shuttle When the drive shaft drives the left and right shuttles to rotate, the bobbin thread is wound on the inner wall tube blank of PVC steel wire transparent hose. According to the extrusion speed of tube blank and the required density of weaving mesh, the rotation speed of rotary shuttle and the number of bobbin core coils can be determined. Generally, 1-2 edge core coils on each rotary extrusion can play an important role in enhancing the quality of the bobbin. The warp line is penetrated through the warp line hole on the fixed axis without rotation.
4. Cooling air ring
The transparent PVC steel wire hose is usually shaped by water cooling. However, considering that the tube blank coming out of the No.1 die head will enter into the No.2 die head to cover the outer plastic, the tube blank extruded by the No.I die head can not be cooled with water, but be cooled by the air ring. Otherwise, the water on the tube blank will produce gas bubbles and affect the product quality. The air volume of the air ring is controlled at Q =About 1500m3 / HR, double lip air ring is used.
5. Traction device
In order to ensure the same regularity of the fabric drawing device as that of the ordinary steel wire drawing device, the same as that of the ordinary fabric drawing device can be ensured.
6. Optical inspection and winding device
The light pick-up box is used to check the wall thickness uniformity and the regular degree of weaving net of transparent PVC steel wire hose. A 60 watt fluorescent tube can be used to fit into the box with glass. The winding device adopts friction clutch to maintain the winding tension.
The quality of PVC steel wire transparent hose produced by the North method is stable and reliable, the production cost is greatly reduced, the price is only about 1 / 3 ~ 1 / 2 of that of rubber pipe, and its performance in transparency, oil resistance, flame retardancy, weight and service life is much better than that of rubber pipe. Therefore, it has the promotion value in the actual production.
Forming principle of PVC steel wire transparent hose
PVC plastic hose refers to the hose reinforced by PVC, glass fiber, metal wire and other recycled fabrics as the middle interlayer of the hose. The key way to wrap the fabric is to wrap the inner and outer patterns of the fabric. At present, the outside mold winding method is mostly used in foreign countries, which can produce ideal PVC steel wire transparent hose.
Process flow of PVC steel wire transparent hose
Batching → mixing granulation → I extruder extruding inner wall tube blank → cooling → winding → extruding outer layer by No.2 extruder → cooling → traction → light inspection → coiling → packaging → finished products.
PVC steel wire transparent hose forming equipment and device design, PVC steel wire transparent hose forming equipment, by the main extruder, secondary extruder, die, air cooling device, weaving device and traction, light inspection, coiling device.
1. Main and auxiliary extruders
The specification of PVC steel wire transparent hose is generally in the range of Φ L2 - Φ 50mm. Therefore, the selection of Φ 45mm can be achieved by extruder. The length diameter ratio L / D of the screw is 20, which is heated in four sections and stepless speed regulation. The center height of both machines is 100 mm.
2. Die head
The design of the machine head depends on the size of PVC steel wire transparent hose, and its reasonable design directly affects the forming quality of the pipe.
3. Winding device
It is composed of left and right weft weaving shuttles and fixed axis. According to the enhancement index, one or more groups of winding devices can be designed. For each group of winding devices, multiple left and right weft threads and multiple diameter wires can be designed. The left and right shuttles are installed at both ends of the fixed axis, and 1 ~ 1 ~ 1 ~ 2 is added to each rotating shuttle When the drive shaft drives the left and right shuttles to rotate, the bobbin thread is wound on the inner wall tube blank of PVC steel wire transparent hose. According to the extrusion speed of tube blank and the required density of weaving mesh, the rotation speed of rotary shuttle and the number of bobbin core coils can be determined. Generally, 1-2 edge core coils on each rotary extrusion can play an important role in enhancing the quality of the bobbin. The warp line is penetrated through the warp line hole on the fixed axis without rotation.
4. Cooling air ring
The transparent PVC steel wire hose is usually shaped by water cooling. However, considering that the tube blank coming out of the No.1 die head will enter into the No.2 die head to cover the outer plastic, the tube blank extruded by the No.I die head can not be cooled with water, but be cooled by the air ring. Otherwise, the water on the tube blank will produce gas bubbles and affect the product quality. The air volume of the air ring is controlled at Q =About 1500m3 / HR, double lip air ring is used.
5. Traction device
In order to ensure the same regularity of the fabric drawing device as that of the ordinary steel wire drawing device, the same as that of the ordinary fabric drawing device can be ensured.
6. Optical inspection and winding device
The light pick-up box is used to check the wall thickness uniformity and the regular degree of weaving net of transparent PVC steel wire hose. A 60 watt fluorescent tube can be used to fit into the box with glass. The winding device adopts friction clutch to maintain the winding tension.
The quality of PVC steel wire transparent hose produced by the North method is stable and reliable, the production cost is greatly reduced, the price is only about 1 / 3 ~ 1 / 2 of that of rubber pipe, and its performance in transparency, oil resistance, flame retardancy, weight and service life is much better than that of rubber pipe. Therefore, it has the promotion value in the actual production.