Novel fiber placement head

Abstract

The invention relates to a novel fiber placement head, and belongs to the technical field of fiber placement machines. The novel fiber placement head comprises a yarn box and a fiber placement head floating mechanism, wherein two linear guide rails are arranged on the yarn box in parallel; sliding blocks are mounted on the fiber placement head floating mechanism; the fiber placement head floatingmechanism is used in match with the linear guide rails through the sliding blocks; one end of a compaction air cylinder is connected with the yarn box while the other end of the compaction air cylinder is connected with the fiber placement head floating mechanism; the fiber placement head floating mechanism is driven by the compaction air cylinder to be slid on the linear guide rails. According tothe yarn box disclosed by the invention, paying-off of yarns of four groups of prepreg rolls, that is, eight prepreg rolls can be realized simultaneously and cannot interfere with each other; two mounting plates which are parallel to each other are arranged on the left side and the right side of a U-shaped connecting plate; and two yarn paying-off film-collecting mechanisms are arranged on each of the mounting plates. Due to the arrangement, the whole size of the yarn box is greatly reduced, so that the phenomenon that interference between a concave curved surface and a die occurs when the concave curved surface with a narrow space can be prevented. According to the novel fiber placement head disclosed by the invention, a novel filament bundle actuation device is adopted, so that a wrapangle of the fiber placement head is reduced, and the technical problem of lack of accessibility is further solved.

Description

technical field [0001] The invention relates to the technical field of silk laying machines, in particular to a novel silk laying head. Background technique [0002] Automatic wire laying technology has been widely used and developed in the past 30 years, and has become a typical representative of composite material forming automation technology. Compared with automatic tape laying technology, automatic wire laying process has better adaptability and can be used to manufacture composite parts with complex curved surfaces. As far as the wire laying machine is concerned, the configuration of the laying head of each manufacturer is different but the basic functions are similar. They can complete the roller laying, yarn feeding, yarn breaking, yarn stopping, tension control, temperature control and laying pressure control, etc. Features. [0003] There are five main components that require tension in the laying head, and they are in the order of the yarn path from the yarn box...

AI Technical Summary

Problems solved by technology

[0012] The present invention solves the problem that the existing automatic silk laying machine's silk path cutter collides with the metal cutting board at high speed when completing the wire cutting work. There are relatively large requirements for the hardness of the prepreg and the process of laying prepreg with tension on the concave surface, the defect of fiber bridging often occurs, resulting in the technical problems of reduced molding speed and poor molding quality, and then provides a new type of prepreg. silk head

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