A suction type doffer device installed on a nonwoven carding machine

Abstract

The invention relates to a suction type doffer device arranged on a nonwoven carding machine. The device comprises a roller body, a core shaft, front and rear wind shields, left and right end covers, card clothing, a synchronous belt pulley and a synchronous belt. The traditional basic doffer structure is reserved in the device; an airflow passage communicated with a suction fan is formed for theroller body, the core shaft and the card clothing, and an inner suction system is formed, so that the device has adsorption effect on the fibers with low curling degree and low length to prevent the fibers from being dissociated and stripped in the high-speed production process; and an adjustable negative pressure suction area is formed by arranging the components such as the wind shields, a brush and the like to meet different installation position requirements of different fiber raw materials, a main cylinder and a condensation roller. The device has the advantages of compact structure, simplicity in operation, convenience for process adjustment, wide range of the processed fiber raw materials and high production speed; and compared with the traditional doffer device, the device has theadvantages that: the density uniformity of a fiber web surface carded and processed by the device is improved by 16 to 27 percent, and the total utilization rate of the raw materials is improved by 12 to 22 percent.

Description

technical field [0001] The invention relates to a doffer device installed on a non-woven carding machine, in particular to a suction type doffer device installed on a non-woven carding machine. This device effectively transfers the fibers with small crimp and short length on the main cylinder to the coalescing roller. It can process a wide range of fiber raw materials and high production speed. It is a doffer device with good web forming uniformity and high raw material utilization rate. . Background technique [0002] The nonwoven carding machine is the key equipment in the web forming process of nonwoven materials. The equipment is composed of working roll, stripping roll, main cylinder, doffer, condensing roll and various card clothings wrapped on the surface of each roll. Among them, the doffer is located between the main cylinder and the condensation roller, and its function is to transfer the fibers that have been combed many times on the main cylinder to the condens...

AI Technical Summary

Problems solved by technology

[0007] The technical problems to be solved in the present invention are: how to improve the traditional doffer device to broaden the range of processable fiber raw materials, increase the production speed, improve the uniformity of the surface density of the fiber web, and improve the total utilization of raw materials; how to set the roller The main body, mandrel and card clothing are connected with the airflow channel of the suction fan, and form an internal suction system, so as to generate adsorption on the surface of the doffer device with low curl and short length fibers; how to select the roller The windshield and brush parts added in the inner cavity of the drum body and how to fix them on the mandrel; how to adjust the position of the windshield and brush parts in the inner cavity of the roller body to control the negative pressure The size of the suction area is suitable for different fiber materials and different installation positions of the main cylinder and coagulation roller; it is necessary to solve the technical problems related to the rotation of the roller body around the fixed mandrel.

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