Discontinuous carbon fiber cutting device capable of obtaining fibers with different lengths

Abstract

The invention belongs to the technical field of fiber processing, and particularly relates to a discontinuous carbon fiber cutting device capable of obtaining fibers with different lengths, which comprises a base, a first frame and a second frame are fixedly connected to the base, a feeding rolling shaft is rotatably connected to the first frame, a transmission shaft of the feeding rolling shaft is in transmission connection with a first servo motor, and the transmission shaft of the feeding rolling shaft is in transmission connection with a second servo motor. Two air cylinders are fixedly arranged on the first frame, and the output ends of the two air cylinders are jointly and fixedly connected with a supporting base. By means of the speed difference between the feeding rolling shaft and the chopping rolling shaft and in cooperation with the unique shape of the chopping rolling shaft, various fibers with different lengths can be obtained in the chopping process of the device, the length of a cutting knife can be adjusted and controlled according to needs, the cutting knife can be folded, the usability of the device is facilitated, and meanwhile the cutting knife can be used for cutting the fibers. The device can clean dust attached to the surfaces of fibers in the using process.

Description

technical field [0001] The invention belongs to the technical field of fiber processing, and in particular relates to a discontinuous carbon fiber cutting device capable of obtaining fibers of different lengths. Background technique [0002] Since the 1950s, the injection molding process has been used to manufacture low-performance structures in the shipbuilding, construction, and automotive industries. The glass fiber roving is cut with a cutter, sprayed out from the center of the spray gun, and evenly deposited on the mold together with the resin. After the deposition on the mold reaches a certain thickness, the fiber is soaked in the resin and compacted with a hand roller, and the air bubbles are removed, and finally cured. products. [0003] The injection molding process needs to rely on the fiber cutting device to cut the fiber during the application process. However, when the traditional fiber cutting device cuts the fiber, the length of the cut fiber is constant, whi...

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Problems solved by technology

[0003] The injection molding process needs to rely on the fiber cutting device to cut the fiber during the application process. However, when the traditional fiber cutting device cuts the fiber, the length of the cut fiber is constant, which makes it difficult to integrate different parts.

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