Maintenance and operation principle of hosiery knitting machine

1, power supply section

The power part mainly includes motor, electric control box and operating elements.

2. Transmission mechanism

(1) transmission system The transmission mechanism of the hosiery machine transmits the movement to the needle cylinder and the control mechanism according to the knitting program of the socks. The transmission mechanism of single-needle circular hosiery machine is as follows. ?

Spindles are divided into spindles I and II. The spindle I is equipped with a crank L, a flexible pulley 2, a low-speed pulley from a high-speed pulley 4 and a gear 8. The slow pulley is fixed to the main shaft L through the square pin of the crank, and the gear 8 is also fixed to the main shaft I as a whole, while the movable pulley and the fast pulley (connected with the simple gear 5 on the outer sleeve) are sleeved on the main shaft L. When the driving belt is located on the belt reels 2, 3 and 4 successively, the needle cylinder is in the states of stopping, slow rotation and fast rotation respectively.

The clutch 9 is connected with the main shaft II through a crescent key and can move left and right along the main shaft II. When the clutch moves to the right and engages with the left side of the gear 8 (the position shown in Figure 3-2), the shaft L and the shaft II are connected as a whole, and the needle cylinder rotates in one direction. The gear 8 meshes with the crank gear 7, and the crank gear 7 drives the sector gear 1 1 to swing through the connecting rod1. When the clutch moves to the left and engages with the right side of the gear 12, the shaft I and the shaft II are separated from each other, and the needle cylinder is driven to reciprocate by the sector gear 1 1.

The sector gear is equipped with two supporting plates 15 and 16, which respectively support the push plate 2 and the sprocket 4 (see Figure 3-4), thus driving the control mechanism of the hosiery machine.

There is a gear 17 under the needle gear 14, which is used to drive the rubber band conveying device. The cam 19 is fixed on the inner side of the ring chain gear 13 on the main shaft II, and the cam 19 drives the thread adjusting roller to change the yarn guide when wiping the knitting stripes through the pull rod. ?

(2) Calculation of speed change ratio

When knitting socks with different cross sections, it is necessary to change the rotation speed and running direction of the needle cylinder. The movement of the needle cylinder has four forms: one-way fast, one-way slow, fast reciprocating and slow reciprocating.

Second, the brief introduction of hosiery machine:

Sock knitting machine, 1589, the first knitting machine in Li Faming, England, used hooks to knit socks and produce socks. Knitting machine for producing socks. 1589 the first knitting machine of Englishman w Li Faming used hooks to knit socks. 1849, the appearance of single-cylinder circular hosiery knitting machine was due to the use of tongue needles on small-caliber circular knitting machines. At first, cashmere socks were produced, and it was not until 1857 that socks with wrapped heels and toes were knitted. The cotton socks machine (flat knitting machine) was invented by W. Cotton in England in 1864. 1900, due to the application of double-ended tongue needle in small-caliber circular knitting machine, a double-cylinder circular hosiery machine appeared to knit rib socks. Socks can be knitted by the special mechanism of the hosiery knitting machine, or they can be manually transferred to the hosiery knitting machine after other machines are completed. Hose system, high heel, heel, foot (including sole and upper), reinforcing ring and top of socks are woven by socks machine.

3. Schematic diagram of hosiery machine: