Electronic drafting driving mechanism of spinning frame

Abstract

The invention relates to an electronic drafting driving mechanism of a spinning frame. The mechanism comprises a mounting bottom plate (1); a front row wall plate (2) and a rear row wall plate (3) are arranged on the mounting bottom plate (1); a front roller driving gear box (4) and a middle roller driving gear box (5) are arranged on the front row wall plate (2); the front roller driving gear box (4) is positioned below the middle roller driving gear box (5); and a rear roller driving gear box (6) is arranged on the rear row wall plate (3). The electronic drafting driving mechanism of the spinning frame is balanced in stress and compact in structure, electronic drafting of three columns of rollers on two sides of the whole spinning frame is achieved in a single-input and double-output gear reduction box permutation and combination mode, and semi-worsted yarn can be spun.

Description

technical field [0001] The invention relates to an electronic drafting drive mechanism of a spinning frame, which belongs to the technical field of spinning machinery. Background technique [0002] Wool spinning ring spinning frame is an important machine in the textile industry. It is an important process from roving to spun yarn. In the spinning process, the drafting drive system is an important link from roving to spun yarn. The rear roller speed is different from that of the corresponding top roller to achieve fiber clamping. At present, the traditional wool spinning frame adopts mechanical drafting. The main motor drives the spindle through the rolling disc on the main shaft, and the other end is driven by a series of gears (including many drafting conversion gears, twist conversion gears, rear drafting gears, etc.) suitable for various spinning processes. stretch conversion gear, etc.) to drive the front, middle and rear rollers on the left and right sides. When chan...

AI Technical Summary

Problems solved by technology

[0003] 1. The drafting process adjustment workload is large;

[0004] 2. The drafting transmission ratio is limited by the space position. Generally, the front roller is adjusted through a 3-stage transmission ratio, and the middle and rear rollers are adjusted through a 7-9 stage transmission ratio. The transmission ratio is between 10 and 50 times;

[0005] 3. With the improvement of the overall level of the textile industry, the transmission ratio also increases the adjustment accuracy requirements. The gear adjustment can only be the adjustment of the integer number of teeth, and there is a relatively large step difference. Only relatively close gears can be selected, which cannot fully meet the needs of the process. Requirements for draft ratio;

[0006] 4. Fancy yarns cannot be spun, such as special yarns such as slub yarns and segmented yarns

[0007] In addition, for the fiber raw materials used in wool spinning mills, the length of the fiber raw materials in the range of 45-65mm belongs to semi-worsted spinning, and the center distance of the front middle roller is 75mm, while the center distance of the front middle roller of normal wool spinning is 105mm, which makes most wool spinning frames It is difficult to adjust the center distance of rollers for spinning semi-worsted yarn

[0008] Patent CN102704059B "Driving Device of Woolen Spinning Frame" discloses a technical scheme of electronic drafting transmission device that can solve some of the above problems, but there are still major problems: 1. Because the torque required for wool spinning drafting is very large (than the same spindle Cotton spinning frame twice as large), this scheme uses as many as 9 synchronous belts to participate in the transmission, especially the rear stage, which makes the service life of the synchronous belt worrying; 2. A standard commercial gearbox is used for one-stage deceleration , the structure is huge; 3. The rear roller still adopts the traditional gear transmission to change the drafting ratio of the rear area. The electronic drafting of the whole vehicle has not been realized, and fancy yarns, such as special yarns such as slub yarns and segmented yarns, cannot be spun.

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