山西金鑫针布有限公司

The influence of new type of flat wire arrangement to comb

Release Time：2022/09/13

Since the 1990 s, both at home and abroad have been introduced with the international advanced level of high-speed carding clothing. Its development is mainly due to the metal card clothing in order to improve the high-speed carding machine created the condition for high yield and high quality, but as the key element of the carding area, metal wire and flat wire, both inseparable, supporting each other. Cylinder wire is the development direction of "short, shallow, thin, dense, small, pointed,"; Matching doffer card clothing is the development direction of: solve the transfer and guiding fiber high-speed airflow or diarrhea; Matching the development direction of flat clothing is: improve plant needle is arranged and reduce the lateral tip, to meet the need of cylinder clothing. This requires a flat clothing must be new, to meet the new requirement.

2. The characteristics of the new type of flat clothing:

From the point of situation both at home and abroad, the classification of the new type of flat clothing has two big characteristics: one is plant needle arrangement; One is flat wire lateral tip from the change.

2.1. Flocking needle arrangement:

The arrangement of flat wire tip mainly by horizontal alignment and vertical alignment size to decide. According to the current industry standard flat clothing can be classified as ordinary, truncated type, density, horizontal dense, decorative pattern. But as the cover the new arrangement and development of new products, the classification of the flat clothing might as well close type, horizontal dense type, light type and close type instead of gradually. But no matter how the points, in which the vertical and horizontal arrangement is the decisive factor.

Horizontal arrangement depends on the number of rows and needle within 25.4 mm (plant pin type) :

Such as: needle root width = 25.4 present lines present 2

Cross stitch = 25.4 present line number

Lateral tip number = line number x 2

Lateral tip from = 25.4 present present alpha present pin Numbers

Vertical arrangement depends on longitudinal width and density:

Such as: the longitudinal which number = (2 x line number density by longitudinal width 25.4)

Vertical root needle distance = present longitudinal width (longitudinal which the number 1)

By horizontal and vertical dimensions to design different arrangement, different density and spun yarn count flat clothing, and vertically and horizontally arranged differently, and from the carding effect, the carding is not only the needlepoint longitudinal density, and cylinder speed also play a role, in order to increase the carding, cylinder speed, commonly will make the carding force enhancement, this will increase the fiber damage. To reduce fiber damage, we considered the flat wire tip from loose to close (that is, the same flat tip is arranged from thin to tight). Such, in fiber into the opening, cover area by easing the carding step by step to strengthen the carding. This is what we think of "close type" flat card clothing, the clothing from longitudinal needlepoint gradient or part of a gradient.

Increasingly dense type flat clothing can be divided into two kinds, one kind is the needle density are divided into districts, dense area of needlepoint evenly arranged, dilute zone needle tip is arranged for arcs, which is part of the gradient. Swiss graff abroad new products introduced in the mid - 90 - PT series, flat wire longitudinal 1/3 is gradually encryption, and two-thirds of card clothing is still the longitudinal equidistance arrangement, until now, this arrangement is still, our country also has some factory is imitation of the product. And my company in the introduction of Italy, darcy technology launch SXPT series flat card clothing in the longitudinal two-thirds is gradually encryption, and a third is a vertical isometric equally arranged (see table 1). Its meaning to make fiber by the dilute region into (loose area more dilute than graff), dense area out of the carding surface gradually wider and more reduce fiber damage; The other is a vertical arrangement for the whole arc, there is no uniform isometric arrangement, namely all gradient. My company due to mechanical controlled by a computer system increase, make my company the production of flat wire tip longitudinal density with the beginning by special arrangement characteristics of thin gradually encryption, so that more embodies the carding intensity gradually strengthen the characteristics of the product in the article cover the fiber inlet longitudinal very loose, fiber exit together, on the other side of the plate in the carding process, as well as reduce fiber damage, and achieved the strong carding effect, to make clothing began gradually from the starting point to end encryption, plant needle machine in general it is quite difficult to do this. SXJT - 46, for example, the first line the needle with needle vertical root distance of 0.465 mm, the second line and the third row needle distance of 0.47 mm, the last line and the penultimate line vertical root needle spacing of 0.655 mm. In this way, make the fiber has just made it into a flat needle surface during carding, have scattered in the carding force and relief, but as fiber into flat needle surface gradually deepened, the carding and strengthened. So the carding comb more accord with our requirements. Prevent the fiber is easily pulled from short-staple, reducing neps, is advantageous to the sliver quality greatly. (see table 2)

Table 1

Company name according to the longitudinal pin number (rows) lateral tip distance

Root from mm mm vertical needle / 2 (25.4 mm)

Total area loose zone dense area of loose zone guhya area thin area

graff

The company PT - 52 44 29 15 0.353 0.456 0.455

~ 0.744, 520, 457

Tusk of

West company SXPT - 52 38 17 21 0.3528 0.467 0.467

~ 0.887, 520, 397

Table 2.

Company name according to the longitudinal pin number (rows) lateral tip distance

Root from mm mm vertical needle / 2 (25.4 mm)

Total area loose zone dense area of loose zone guhya area thin area

graff

The company PT - 52 44 29 15 0.353 0.456 0.455

~ 0.744, 520, 457

Tusk of

West company SXJT - 46 40 total area

By the close to dilute 0.3175 by the whole district

Average 0.465 ~ 0.655 in 465

2.2. The lateral tip from:

From the carding function into consideration, we think the lateral tip is apart from the more important, should take the small is beautiful, because of the horizontal cylinder metal card clothing to be encrypted (that is, the base development) thick to thin, so the corresponding flat clothing also need to lateral encryption, so that can make the fiber in the carding hit single fiber form as soon as possible to improve the quality of combed cotton and production. As the lateral tip from gradually decreases, and the future will be to the lateral tip from 0.5 mm as the cut-off point, not more than 0.5 mm for the new flat clothing, conversely for ordinary flat clothing.

My company design products are lateral encrypted, transverse density than ordinary clothing, that is to say, the lateral tip from smaller, most are below 0.4 mm, the smallest tip distance of 0.3175 mm, such as: SXJT - 46, SXJT - 42, this kind of card clothing is further enhanced the carding effect, the horizontal cylinder wires (base), minimum of 0.4 mm, 0.3175 mm lateral tip from my company flat clothing for supporting the carding, the more increase the carding efficiency, for high production carding machine (s) with the good conditions. In general, small flats lateral tip, particularly favorable to cotton fiber beam of the carding. I company for the purpose of design and production.

For example: currently, ST - 36 flat clothing, its planting needle type is the same, and vertical and horizontal to the pin number is different, according to our understanding of ST - 36 type has a modification of the old production in China, graff JinKouJi production and our company import machine production, the three machine on the lateral tip number is different. (see table 3)

Table 3

Machine type lateral tip for lateral tip from longitudinal pin number

Our country reform 42 needle machine 7.5 0.4233 mm

Graff 40 needle machine 8 0.4 mm

Our factory JinKouJi 8.75 0.3629 mm 36 stitches

From the above figures show that my company's ST - 36 cross stitch to a minimum, the most beneficial to the carding, vertical stitch amplifier, can form a complete set of in cylinder high-speed carding, also easy to eliminate small impurities in the fiber.

According to the above analysis, my company's flat wire arrangement, new products, specifications, international no other factory production. Tell from the manufacturing, in order to ensure the quality, the most special processing technology. My company in order to research new products, has introduced the Italian clothing company plant needle machine, requires institutions on ascending base cloth flocking needle machine controlled by a computer system to meet the requirements of the development of new products. Flocking needle machine controlled by computer system. We have learned, at present our company for the first in the world, so my company the production of new products, is completely controlled by a computer system to produce, so at home and abroad at present is unique.

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