Water band

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.

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...

AI Technical Summary

Problems solved by technology

The production process of this existing hose 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 can easily cause uneven wall thickness and congenital technical defects.

Moreover, the existing production process has high energy consumption, high manufacturing cost, high weight, low pressure resistance, and high scrap rate

[0003] The hose produced by the above-mentioned existing hose production process has a short service life because it is easy to delaminate when it is used. Because the wall thickness of the glue layer is controlled twice, the wall thickness is difficult to be uniform, which will reduce the durability of the hose. pressure performance

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