The production of hosiery needs to go through many processes from the raw materials entering the factory to the finished socks leaving the factory, such as material preparation, weaving, sewing head, roller head, dyeing, shaping, packaging, etc. Among them, the main equipment used in the weaving and setting process is the hosiery machine and the setting machine. These two equipments often cause frequent problems due to improper lubrication, causing losses to the production of the enterprise. The following describes the lubrication problems and improvement of the hosiery machine and setting machine of one of the hosiery factories that the Yourun team encountered in the past service.
There are many types of hosiery machines, which can be divided into single-needle hosiery machines and double-needle hosiery machines according to their needle cylinders. According to the organizational structure of socks, it can be divided into jacquard socks machine, embroidered socks machine, terry socks machine, etc. The main lubricating parts of the hosiery machine are the knitting needles, needle beds and lobes.
The hosiery machine of a hosiery factory uses a certain brand of 32/46 anti-wear hydraulic oil, and the lubrication effect is not ideal during use, especially after a period of downtime, the knitting needles and needle cylinders are seriously rusted, and the knitting machine runs again. The sock machine will further damage the knitting needle and needle cylinder, delay the production progress and increase the cost.
For the lubrication of the knitting needles and needle beds of hosiery machines, it is recommended to use special knitting oil such as Yourun knitting oil, which can effectively reduce the wear of the needle and barrel, especially for high-speed and fine-gauge heavy loads; rust properties, resistant to various metal corrosion; good emulsifying properties and strong, easy to wash, will not cause uneven dyeing, oil stains, odor and other problems in post-treatment.
The working principle of the setting machine for setting socks is the same as that of ironing clothes:
(1) Flattening: Use a sock board to spread all the socks to ensure that the socks are flat.
(2) Temperature, pressure, moisture, time: put the socks into the shaping box, and pass a certain amount of steam in the box to meet the temperature in the box. The amount of steam in the box is determined according to the variety of socks. The steam is proportional to the pressure. The higher the temperature, the greater the amount of steam.
(3) Drying: After the socks are shaped, go to the drying oven. The better the drying oven effect, the stiffer the socks.
The main lubrication points of the setting machine are chains, skateboards, bearings, etc., and the internal working temperature is relatively high, exceeding 110 degree . The hosiery factory uses ordinary butter to lubricate, which cannot achieve good lubrication during use. The grease is quickly lost, the chain is rusted and worn, the sludge is accumulated, and the skateboard is dry friction.
For the lubrication of chains, skateboards, etc., you can use Urun high-performance dry film spray, which can be naturally air-dried and quickly cured. It is formulated with specially processed low molecular weight and small particle size PTFE particles. It has good adhesion on the surface of various materials, and has good lubricating properties and release properties. It has good anti-acid, anti-alkali and anti-solvent ability, and the applicable temperature can reach 260ºC.
In addition to the lubrication problems of chains and skateboards, the hosiery factory also uses ordinary lithium-based grease for the bearings of the setting machine, and the lubrication effect is also unsatisfactory.
Also for bearing lubrication, special bearing grease should be used, which can adapt to wide working temperature under harsh conditions (such as -40 degree -180 degree ), has good anti-wear and lubricating properties, high anti-oxidation and anti-rust properties, and ensures its It can work normally in water and steam environment. It has extremely high thermal and chemical stability and high dropping point, which makes the equipment run stably and ensures the normal production of the enterprise.
