Organ-shaped pinch roller structure and working method thereof

Abstract

The invention relates to an organ-shaped pinch roller structure which is used for a continuous fiber winding plastic composite pressure pipe production line and can press and stick plastic layers wound in different fiber face states in the manufacturing and winding process of composite pressure pipes and a working method thereof. The organ-shaped pinch roller structure is composed of pressing sheets, multiple swinging arms, shafts C, springs and shafts B, wherein the pressing sheets are located in grooves of the heads of the swinging arms, the swinging arms provided with the pressing sheets penetrate through the shafts C through shaft holes in sequence and constitute an organ-shaped pinch roller organ face, the shafts C and the shafts B are fixed to a support A, the shafts B are located below the shafts C, one ends of the springs are fixed to the shafts B, and the other ends of the springs and the grooves of the lower portions of the swinging arms are in clamping and elastic pressing cooperation. The organ-shaped pinch roller structure has the advantages that in the manufacturing process of continuous fiber winding plastic composite pressure pipes, organ keys of the organ-shaped pinch roller structure can press and stick the plastic layers whether a fused plastic belt is even or not, and thus the plastic belt and a fiber belt pre-impregnated with resin are fused and effectivelyadhere to each other.

Description

technical field [0001] The invention relates to an organ-type pressing wheel structure and working method for a continuous fiber-wound plastic composite pressure pipe production line capable of pressing and bonding winding plastic layers in different fiber surface states during the winding process of composite pressure pipe manufacturing, belonging to the piano-type pressing wheel. Wheel structure manufacturing field. Background technique [0002] At present, the continuous fiber composite pressure pipe is developing rapidly, involving a variety of composite methods. The fiber tape that has been pre-impregnated resin is wound and coated on the outer surface of the plastic pipe, and then a layer of plastic is wrapped on the surface of the fiber tape pre-impregnated resin. , thus forming a fiber tape with inner and outer layers of plastic and the middle layer pre-impregnated with resin. The anti-bit strength of the resin is (6-10) MPa, while the tensile strength of the fiber ...

AI Technical Summary

Problems solved by technology

However, due to different composite production lines, different process routes are formed, which makes it easy to delaminate between the composite plastic and the pre-impregnated resin fiber tape, which reduces product reliability, making this product unpopular.

The reason for the poor reliability is that when plastics are combined with pre-impregnated resin fiber tapes, the body temperature of the pre-impregnated resin fiber tapes cannot reach 160 degrees or more as the plastic. Below this temperature, not only the plastic cannot melt, but also the pre-impregnated resin The fiber tape cannot melt either, and the two cannot achieve effective bonding

The reason why the body temperature of the pre-impregnated resin fiber tape can not reach 160 degrees or more is that the plastic pipe starts to melt when it exceeds 160 degrees, and the melted pipe begins to be stretched under the action of the tractor. While stretching, the plastic pipe began to collapse inwards, completely destroying the inner pipe, making production impossible

Images