Machine number and yarn relationship and determination

The guage is the number of needles that are present within the specified length of the pointer bed. This specified length should be one inch on the flat knitting machine. The length of the needle bed is the number of needles that can be provided on the pointer plate to place the needle. For example, if the machine number is 12 needles and the effective length is 44 inches, then the needle plate allows the maximum number of knitting needles to be 528 needles. If the process you are calculating exceeds this number of needles, the needle plate cannot be woven, so you should pay attention to it before calculating the process, especially when calculating the process involving large sizes.

     A flat knitting machine of a certain machine number is only suitable for weaving yarns of a certain linear density range. The upper limit of the linear density should be the needle spacing minus half the outer diameter of the hook; however, many people only pay attention to this point, and one point is that when the single yarn is woven, the lowering of the needle tongue and the needle body The difference in width, if this difference is not satisfied, it is very easy to create problems such as loopholes, single yarn, especially fluffy yarns should pay attention. According to the previous production experience, when the flat knitting machine weaves the weft knitted fabric, the relationship between the machine number and the linear density of the suitable processing yarn can be determined by the following formula:

Tm = E 2 /K

Formula Description: “Tm” refers to the metric count of the yarn. If it is a plurality of weaves, it should be considered as the total number of yarns involved in the weaving, such as cotton yarn 32S/2*5P, ie the current woven yarn consists of five Each thread is composed of two yarns. The density of each yarn is 32S (the length of 1 gram of yarn), then the total number of yarns involved in knitting is: 3.2

"K" is a constant value, the value of the value ranges from 7 to 11 (generally taking the intermediate value)

"E" is the machine number. By converting, it is more suitable to use the knitting machine with the number of the above-mentioned cotton yarn. Take K=9, it can be calculated that the E=5 needle machine is more suitable for knitting one side.

It should be noted that the only examples provided here are empirical formulas, and they can only be used for single-sided fabrics. Perhaps many people think that there are limitations, but from my personal experience, this is a very good one. The empirical formula, starting from the single-faced fabric, can easily know the allowable range of linear density of fabrics such as woven ribs and crepe, and make corresponding adjustments according to actual conditions. For example, weaving rib fabric, fabrics below 3×3, the value of K should be larger; if weaving the fabric of the flower, the value should be smaller, but if it is woven, it should be smaller, but in any case A factor that takes into account the upper limit of the linear density of the yarn.

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