Formation method for single-side suture line stitch of three-dimensional composite material prefabricating component

A technology of composite materials and sutures, which is applied in sewing equipment, textiles and papermaking, etc., can solve the problems such as difficult to complete the sewing operation of large structural parts with complex spatial shapes, flexibility limitations, etc., and achieve good sewing effect, flexible operation, and strong Effect of interlaminar fracture toughness and fatigue strength

Inactive Publication Date: 2013-02-13
TIANJIN POLYTECHNIC UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

[0007] In view of the current traditional sewing method, the flexibility is limited during the sewing operation of composite special-shaped prefabricated parts, especially the problem that it is difficult to complete the sewing operation of large structural parts with complex spatial shapes

Method used

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  • Formation method for single-side suture line stitch of three-dimensional composite material prefabricating component
  • Formation method for single-side suture line stitch of three-dimensional composite material prefabricating component
  • Formation method for single-side suture line stitch of three-dimensional composite material prefabricating component

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Embodiment Construction

[0024] The present invention is further described below in conjunction with embodiment and accompanying drawing.

[0025] The forming method (abbreviation forming method or sewing method, see Figure 1-5 ) is based on the "two needles and one thread" suture principle (the "two needles and one thread" principle corresponds to the "one needle and one thread" suture principle of the traditional sewing method, which means that the method requires two needles and one seam Thread to realize sewing operation) design, through the perfect cooperation of the lead thread, hook thread and thread take-up mechanism of the unilateral sewing equipment, the unilateral sewing operation of the three-dimensional composite material prefabricated parts is completed. The crochet needle 11 and thread-leading needle 21 of the forming method of the present invention are all located on the upper surface of the sewing material 6 or the workpiece, and there is no any sewing unit matching the upper surface...

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Abstract

The invention discloses a formation method for single-side suture line stitch of a three-dimensional composite material prefabricating component. According to the formation method, a line guiding mechanism, a line hooking mechanism and a line picking mechanism are precisely matched to move to obtain the single-side suture line stitch based on time. The formation method mainly comprises four steps: 1, forming a line ring; 2: returning the line ring by hooking; 3, locking the line ring; and 4, cycling operations, wherein suturing works in steps 1 to 3 are repeated, and a reciprocating cycling movement under design cycles is carried out, so that the single-side suture line stitch can be formed. The formation method for the single-side suture line stitch has the characteristics of being simple in technology, good in suturing effect, flexible in operation, and high in adaptability and the like; and a spinning three-dimensional composite material prefabricating component product in shape of complex suturing space is high in interlaminar fracture toughness, and high in fatigue strength.

Description

technical field [0001] The invention relates to a manufacturing technology of a three-dimensional composite material prefabricated part, in particular to a method for forming a single-side suture stitch of a three-dimensional composite material prefabricated part. Background technique [0002] Three-dimensional textile composite material is a composite material with advanced structure, which overcomes the fatal shortcoming of low interlayer strength of various structural composite materials in the past, has good mechanical properties, and can be used to manufacture load-bearing components of various structures. It is used in important fields such as aviation, aerospace, automobiles, and ships. [0003] In the processing and manufacturing process of three-dimensional composite material prefabricated products, technologies such as bonding and weaving are mainly used. However, the bonding technology cannot guarantee the mechanical properties of prefabricated products under cer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D05B1/02
Inventor 李亮玉岳建锋姚福林马明
Owner TIANJIN POLYTECHNIC UNIV
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