Pneumatic press-stopping device capable of eliminating wire harness adhesion
A technology of tow and cylinder, which is applied in the field of automatic laying and forming of composite materials, can solve problems such as inconsistent length of filaments and lack of filaments, and achieve the effects of convenient and precise control, reduced resin viscosity, and uniform and stable force
Active Publication Date: 2018-10-23
INST OF AUTOMATION CHINESE ACAD OF SCI
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Problems solved by technology
[0006] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problem that the prepreg tow sticks after re-feeding in the automatic wire-laying machine, resulting in inconsistent length of wire output and failure of wire shortage, the present invention provides a method that can eliminate wire The pneumatic hold-down device for bundle adhesion includes a hold-down device and an installation base connected to each other, a tow guide groove is arranged in the installation base, and the hold-down device communicates with the tow guide groove for The compression operation is performed on the tow passing through the tow guide groove, and the improvement is that the pneumatic compression device further includes a pumping device, and an air guide channel is provided on the base, and the pumping device means communicate with the tow guide channel via the gas channel for pumping pressurized gas into the tow guide channel to inhibit adhesion of the tow to the tow guide channel
Method used
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[0031] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention.
[0032] It should be noted that, in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The terms of the indicated direction or positional relationship are based on the direction or positional relationship shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation , and therefore cannot be construed as a limitation of the present invention. In addition, the terms "first", "second", and "third" ar...
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The invention relates to the technical field of automatic laying forming of composite materials, in particular to a pneumatic press-stopping device capable of eliminating wire harness adhesion. The pneumatic press-stopping device aims to solve the problems that the lengths of output wires are inconsistent and the wire lacking fault is caused due to the fact that adhesion occurs after re-delivery of preimpregnated wire harnesses of an existing automatic wire laying machine. Therefore, the pneumatic press-stopping device capable of eliminating the wire harness adhesion comprises a press-stopperand a mounting base which are connected with each other, a wire harness guiding groove is formed in the mounting base, and the press-stopper is communicated with the wire harness guiding groove and isused for carrying out press-stopping operation on a wire harness penetrating through the wire harness guiding groove. The pneumatic press-stopping device further comprises an air pumping device, an air guiding channel is formed in the base, and the air pumping device is communicated with the wire harness guiding groove through the air guiding channel. The preimpregnated wires are prevented from being adhered to a channel by utilizing a pneumatic mode, the inconsistent output wire lengths or the wire lacking fault due to the adhesion of the wire harnesses is eliminated, and accurate control over laying of multi-bundle fiber harness pairs in complex shapes is convenient.
Description
technical field [0001] The invention relates to the technical field of automatic laying and forming of composite materials, in particular to a pneumatic pressure stop device capable of eliminating the adhesion of tow bundles. Background technique [0002] Composite materials have the advantages of high specific strength, high specific modulus, fatigue resistance, good vibration damping, and good manufacturability, so they have been widely used in the aerospace industry, and in other industries, such as sports equipment, ships, high-speed rail In other fields, the amount of composite materials is also increasing. For high curvature profile composite monolithic components such as aircraft fuselage sections and other ellipses with high curvature such as jet engine cowlings, intake ducts, nozzles, conical tubes, compressor blades, circular or "C" channel tubes, etc. Complicated components such as contour integral composite components require the use of automatic wire laying mac...
Claims
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IPC IPC(8): B29C70/38
CPCB29C70/384
Inventor 吴保林
Owner INST OF AUTOMATION CHINESE ACAD OF SCI