Water band

A technology for hoses and joints, which is applied in the direction of hoses, pipes, pipes/pipe joints/fittings, etc., can solve the problems of reducing the pressure resistance of hoses, low pressure resistance, and high scrap rate, and achieve simplified production processes and low energy consumption. Effect of reduction and cost reduction
CN101870170AActive Publication Date: 2010-10-27GUANGDONG HELI PLASTIC CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGDONG HELI PLASTIC CO LTD
Publication Date
2010-10-27

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Abstract

The invention provides a water band production method. The method comprises the following steps of: distributing a plurality of straight terylene lines outside PVC inner glue of a water band in a direction parallel to the central line of the water band to form a first linear fiber layer; forming a second coiled fiber layer outside the first linear fiber layer in a spiral mode; forming a third coiled fiber layer on the outer surface of the second coiled fiber layer in a spiral mode in the opposite direction; introducing the fiber layer into a specific die; and coating soft PVC on the inner side and outer side of the coiled fiber layer to perform moulding at one time. The inner and outer glue layers of the water band prepared by the method are mutually fused and combined together tightly and inseparably. Thus, the wall thickness is more easily controlled, the production process is simplified, the power consumption is greatly reduced and the cost is reduced. The water band is more resistant to high pressure, lighter, more wear resistant and more suitable for water delivery at a long distance.
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Description

technical field

[0001] The invention relates to a new type of hose for water transportation. The inner rubber layer, the winding polyester filament and the outer rubber layer of the hose are formed in a special mold at the same time, and have the characteristics of high pressure resistance, lightness, wear resistance, etc. Water can be transported over long distances. Background technique

[0002] The production process of the existing hose generally adopts a three-step method, that is, the inner rubber layer is manufactured first, then the fiber layer is woven on the surface of the inner pipe, and finally a layer of PVC rubber layer is covered on the outer surface of the blank. This existing hose production process is complex, the inner and outer layers are not bonded firmly, and are easy to delaminate. At the same time, the separate production of the inner and outer rubber layers increases the difficulty of controlling the wall thickness, which is easy to cause uneven wal...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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