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A method and mold with a gap surface fiber tube

A fiber tube and curved surface technology, which is applied in the field of preparation of notched curved surface fiber tubes, can solve the problems of loose fiber material winding, reduce the structural strength of fiber tubes, and low yield, and achieve uniform thickness, improved structural strength, and neat lines Effect

Active Publication Date: 2016-05-11
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: the fiber tube is easily deformed during molding and the fiber material is loosely wound to reduce the structural strength of the fiber tube, and the production rate is low; at the same time, the technical problem of the complex structure of the mold for making the fiber tube

Method used

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  • A method and mold with a gap surface fiber tube
  • A method and mold with a gap surface fiber tube
  • A method and mold with a gap surface fiber tube

Examples

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preparation example Construction

[0016] The invention provides a method for preparing a fiber tube with a notched curved surface, the process of which is as follows figure 1 As shown, it specifically includes the following steps:

[0017] S10. Make a metal inner core according to the shape of the product, and set a clamping device on both sides of the inner core; wind the cut fiber cloth on the metal inner core, and wind the two ends of the fiber cloth on the clamping device ; And tighten the clamping device to make the fiber cloth tight;

[0018] S20, prepare the mould, put the metal inner core wrapped with taut fiber cloth into the mould, close the mold and compress the fiber cloth;

[0019] S30. After clamping the mold, heat and press to form, and cool to form; after the mold is opened, a fiber tube with a curved surface with notches is obtained; the metal inner core is first separated, and the fiber tube is finished to obtain a finished product.

[0020] In the preparation method provided by the present...

Embodiment 1

[0040] Prepare the metal inner core 24 according to the shape of the product, and set the clamping device on the metal core material; cut the fiber cloth 41, wind the cut fiber cloth 41 on the metal inner core 24, and wrap the two ends of the fiber cloth 41 respectively fixed on the clamping device, and the fiber cloth 41 is tightened by the clamping device so that it closely fits with the metal inner core 24 or other fiber cloth; the metal inner core 24 is put into the opened mold, and the upper mold 21 moves down and gradually approaches the metal inner core 24, and the movement of the upper mold 21 drives the first slider 22 and the second slider 26 to move towards the metal inner core 24 until the upper mold 21, the lower mold 26, the first slider 22, the second slider The two sliding parts 26 are in close contact with the metal inner core 24 .

[0041] After the mold is closed, the mold is heated and pressurized to form the fiber cloth 41, wherein the heating temperature ...

Embodiment 2

[0043] Prepare the metal inner core 24 according to the shape of the product, and set the clamping device on the metal core material; cut the fiber cloth 41, wind the cut fiber cloth 41 on the metal inner core 24, and wrap the two ends of the fiber cloth 41 respectively fixed on the clamping device, and the fiber cloth 41 is tightened by the clamping device so that it closely fits with the metal inner core 24 or other fiber cloth; the metal inner core 24 is put into the opened mold, and the upper mold 21 moves down and gradually approaches the metal inner core 24, and the movement of the upper mold 21 drives the first slider 22 and the second slider 26 to move towards the metal inner core 24 until the upper mold 21, the lower mold 26, the first slider 22, the second slider The two sliding parts 26 are in close contact with the metal inner core 24 .

[0044] After the mold is closed, the mold is heated and pressurized to shape the fiber cloth 41, wherein the heating temperature...

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Abstract

The invention provides a preparation method of a notched curved fiber pipe. The preparation method comprises the following steps: S10, making a metal inner core according to the product shape and arranging clamping devices on two sides of the inner core; winding cut fiber cloth onto the metal inner core and winding two ends of the fiber cloth onto the clamping devices; screwing the clamping devices to tighten the fiber cloth; S20, preparing a mould, putting the metal inner core wound with the tightened fiber cloth into the mould, closing the mould and pressing the fiber cloth; S30, after closing the mould, heating and pressurizing for forming, and cooling for shaping; opening the mould to obtain the notched curved fiber pipe; separating from the metal inner core, cutting the fiber pipe, and removing excess flanges to obtain the finished product. According to the preparation method provided by the invention, the clamping step is added, so that the fiber cloth is tidy in line and uniform in thickness, and the structural strength of the product is high. The invention further provides the mould which is simple in structure, convenient to operate and low in cost.

Description

technical field [0001] The invention belongs to the technical field of fiber composite materials, and in particular relates to a preparation method and a mold of a curved fiber tube with notches. Background technique [0002] At present, the main methods of forming fiber tubes are as follows: (1) Using an air bag as the inner core, wrapping the fiber material on the outside of the air bag filled with air during production, placing the air bag wrapped in the fiber material in the mold, and heating Molding, and finally take out the air bag; but because the air bag is prone to deformation when the fiber material is wound, when it is cured and formed, it is easy to cause deformation of the fiber tube, and the product is scrapped. (2) The inner core is made of solid material. Although this inner core can avoid the deformation of the product during molding, the fiber material wound on the inner core is always in a loose state, resulting in a gap between the fiber material and the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/46B29C70/54B29C33/00B29L23/00
CPCB29C33/00B29C70/30B29C70/541B29L2023/22
Inventor 乐剑强
Owner BYD CO LTD
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