Knitting machine oils that may be encountered during operation are generally three kinds: knitting oil, oil and compressor oil. In addition to knitting oil, the other two are not water-oil emulsion. While knitting oil emulsified with water, staining can be removed, but due to the current use of low temperature dyeing dyeing process, more difficult to oil, in addition, some fabrics (such as spandex, viscose fiber and other new materials, etc.) required before dyeing predetermined shape, so that the oil can not be removed knitting, and knitting oil are very sensitive to certain colors, so the need for generation and control method of knitting oil have a full understanding.
First, the role of knitting oil
Knitting machine in the production process due to knitting, knitting sinkers in high-speed movement, not only do the sinker groove down or backwards, but also with the syringe (or dial) a circular motion, knitted, sinker and the wall of the groove Room will be between the butt, butt and sinker triangle friction, this time, the film (or oil wedge) formed by knitting oil can play the following roles:
1 change surface friction coefficient, reducing the frictional resistance;
2, reduce the extent of the contact surface was wear and prolong the service life of the needles, sinkers and triangle;
3 reduce friction between each other, thus reducing the heat generated by friction, so knitting machine kept at the right temperature movement.
Second, the form of oil-pin
When oil enters knitting knitting area will be attached to the yarn woven into the fabric, since oil is generally appear somewhere in the barrel, so oil needle (or passage) on the general performance of vertical fabric.
Third, the reason for the oil produced by the needle and preventive measures
Pin 1 hair oil produced
In order to prevent lubricants and fly into the knitting area, so the need for hair, directions, from the air nozzles, diameter, air pressure etc. reasonable control of the size of the hair when.
2 position
Hair in the crevice between two saddles, as close as possible prior to the injection of the fuel injection, which can be fuzz fiber, has lubricated and saturated with oil, heat blow, and the lubricating oil can be fully utilized.
3 directions
Hair time to needles, sinkers reverse movement of the oil blow, can effectively prevent the lubricating oil into the knitting area, textile needle.
Distance 4 air nozzles
Usually wind up from the knitting area 3 ~ 5MM. The distance is too large, it would not achieve the lubricating oil to prevent the precipitation effect.
5 nozzle diameter
Typically nozzle diameter of 2.0 ~. Nozzle diameter is too large, the wind blowing more scattered, weak, too small diameter blow not in place.
6 Pressure
Pressure is usually maintained at (29.4 ± 4.9) N / cm2. The oil pressure is too small fuzz fiber, oil blow knitting area; too much pressure is likely to cause a lateral needle.
Needle size 7 oil produced discomfort
8 Oil excessive
Oil will cause excessive needles, sinkers slot lubricant reaches saturation, the "surplus overflows", which produces oil needle usually qualities, commonly known as "transparent oil needle", and in the moist cloth upper longitudinal traces .
9 oil is too small
Knitting needles, sinkers trough in oil, making some parts appear dry grinding, friction increases, machine temperature, heat generation member of the expansion, the movement gap smaller, frictions, a vicious cycle. In this case, short fibers accumulate, harden the needles and sinkers tank impede its normal movement, and even some parts of the heat due to friction and blue (oxide film formed on the surface). Needle is too small to produce fuel oil is usually black, that is the end of the iron-containing tiny black oil. Knitting machine during operation and avoid starvation, because the high-speed operation of the mechanical condition of the lubricating oil in the absence of dry grinding, will lead to high temperatures, the result is friction led to the mouth of the machine, "burn", mechanical failure or scrapped.
10 circular knitting machine Workaround: it is necessary to maintain appropriate measures to reduce fuel oil needle. If the oil level is slightly larger, and the hair smooth, it certainly will be a needle, but avoid the oil is too small.
Three reasons oil needle "cotton feces" caused
1 Go to the syringe, the needle groove velvet-like fiber and triangular gap at the easy oil absorption, under normal circumstances, it can ensure the needles, sinkers and syringe (disk) always are in an environment with oil movement, but syringes, needle groove and triangular gap at the accumulation of a large group of oil-impregnated fiber (cotton feces), will result in oil needle.
Knitting machine needle solution: regular cleaning velvet-like voids within the fiber component so as not to accumulate into a "cotton feces", which is an effective way to solve this type of needle.
Cause 4 knitting needle surface roughness produced parts: 1 long unused syringes, triangle, needles and sinkers, if effective rust treatment will rust, but rust can cause uneven surfaces, since iron oxide rust lower hardness, it is easy to wear, mixed with oil, so the cloth will have red, yellow or black needle.
2 surface roughness does not meet the requirements or not chamfering deburring parts in the manufacture of knitting will be attached to a lot of oil, and therefore result in oil needle.
3 Under normal circumstances, there is between the lubricant and metal good affinity, when needles and sinkers at the oil tank needle reciprocates, because of its uneven surface, the oil will always be taken no oil or less oil The region, which was taken to the oil knitting area once exposed to the yarn, the yarn will be absorbed and woven together into the fabric, and the subsequent oil continue to be taken to the region, is also to be woven into the fabric to form oil needle.
Needle Workaround: Typically talc (talcum powder) by a certain percentage into the needle oil, grinding of corroded parts (the needle oil containing talc slowly injected from the saddle of the gap at the start of the machine). To severe corrosion of weaving elements should be scrapped.
Part of the gap 5 weave improper needle: knit unit smaller gap, the more prone to needle, which is due to hair difficult to play its due role. Gap generally triangular base and the barrel is 10 ~ 20MM more appropriate.
6: The oil cooler caused by needle reasons: winter or cold start, due to the oil temperature, engine temperature are low, the oil flow is poor, and therefore the oil is very easy from the needles, sinkers at the precipitation, and produce oil needle.
7: knitting machine needle solution: first open hybrid yarn, slow the machine is turned on, the machine running until after a period of time (about 30 ~ 60min), injection needle oil twice on the needle plate, syringes, and then open 3 ~ 5mm, then blowing needle oil and fly, and finally put on regular yarn boot, solve this problem.
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