Rotary speed changing mechanism for opening of spinning machine

Abstract

The invention discloses a rotary speed changing mechanism for an opening of a spinning machine. The rotary speed changing mechanism comprises an eccentric wheel fixing plate, wherein an output shaft and an input shaft, which are parallel to each other, are arranged on the front surface of the eccentric wheel fixing plate; the input shaft is provided with a first eccentric wheel and the output shaft is provided with a second eccentric wheel; and the first eccentric wheel is connected with the second eccentric wheel. With the adoption of the manner, according to the rotary speed changing mechanism for the opening of the spinning machine, disclosed by the invention, the condition that high-level, heald leveling and low-level speeds in an opening process are changed from the minimum to the maximum and from the maximum to the minimum through an eccentric wheel device. Furthermore, the ratio of a whole opening period in effective opening time is increased, and enough time is provided for weft insertion of the spinning machine; and warp stop and weft stop are reduced, and the spinning quality, the spinning efficiency and the spinning speed are improved.

Description

technical field [0001] The invention relates to the field of textile equipment, in particular to a speed change device for a textile machine opening. Background technique [0002] At present, in the process of using the weaving and spinning machine, in order to reduce the weft stop, provide enough weft insertion time for the loom, and then increase the speed of the machine, the general weaving enterprise often increases the opening height, and with the increase of the opening height, when the opening is full The warp elongation and tension also increase, which increases the mechanical load on the one hand, and increases the risk of warp yarn breakage when starting up; the currently used cam rotation speed change mechanism can increase the ratio of effective shedding in the entire shedding cycle , but its manufacturing is difficult, the processing cost is high, and the later maintenance is inconvenient. Contents of the invention [0003] The technical problem mainly solved...

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Problems solved by technology

[0002] At present, in the process of using the weaving and spinning machine, in order to reduce the weft stop, provide enough weft insertion time for the loom, and then increase the speed of the machine, the general weaving enterprise often increases the opening height, and with the increase of the opening height, when the opening is full The warp elongation and tension also increase, which increases the mechanical load on the one hand, and increases the risk of warp yarn breakage when starting up; the currently used cam rotation speed change mechanism can increase the ratio of effective shedding in the entire shedding cycle , but its manufacture is difficult, the processing cost is high, and the later maintenance is inconvenient

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