Accurate detection device for sliver of carding machine

Abstract

The invention provides an accurate detection device for a sliver of a carding machine. The accurate detection device comprises a detection box, a bell mouth, a detection mechanism and a sensor and is characterized in that the tail part of the bell mouth is provided with an opening and the bell mouth is fixed on a bell mouth fixing and adjusting plate arranged on the detection box. The detection mechanism comprises an upper press roller, a lower press roller, an upper press roller rotating support shaft and a lower press roller rotating shaft, wherein the lower press roller is connected with the upper press roller rotating support shaft, the lower press roller is fixed on the lower press roller rotating shaft, the upper and the lower press rollers are in a double raised roller manner, and detection bulges which are arranged in the upper and the lower press rollers and used for detecting thickness displacement of a sliver are inserted in the middle of the opening at the tail part of thebell mouth; one end of a lever detection arm is connected with the detection box, the other end of the lever detection arm presses the sensor in an elastic manner, and the middle part of the lever detection arm is connected with the upper press rotating support shaft. By the adoption of the accurate detection device, accuracy and reliability of sliver detection can be improved, manufacturing costcan be reduced and production efficiency can be improved; in addition, the accurate detection device has the advantages of reasonable and compact structure and low requirement on the processing and assembly accuracy of a detection point.

Description

technical field [0001] The invention belongs to the technical field of textile machinery, and relates to a sliver detection technology of a carding machine, in particular to an accurate detection device for a sliver of a carding machine. Background technique [0002] In addition to neps, impurities, and short staples, the quality index of the carding machine is also a key index, which directly affects the deviation of the yarn count. In order to solve the unevenness of the carding machine itself and the sliver between the carding machines, manufacturers of carding machines at home and abroad have basically adopted autoleveling to control the unevenness of the sliver. At present, the short-segment control of internal unevenness is ideal, but the control of external unevenness and long-segment is not so ideal. The main reason is the accuracy and reliability of the autoleveling control algorithm and the detection signal. Recently, domestic and foreign carding machines have a d...

AI Technical Summary

Problems solved by technology

Recently, domestic and foreign carding machines have a detection point at the bell mouth to achieve long-segment autolevelling, but the processing and assembly precision required by the detection point is high, and the output signal is small. The reliability of the final signal is poor, and cotton wax and impurities will affect the accuracy of the signal, thereby affecting the leveling effect of the autoleveler on the sliver

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