Knitting Machine

Knitting machines are mainly two types; they are circular knitting machine and flat bed knitting machine. This two types are hugely use in knitting machine. A knitting machine is composed of lots of parts. Every parts of a machine are important for run the machine smoothly. Every part has a specific function during operation.

There are some different circular knitting machine parts and their functions are given below:

Creel: Creel is called the holder of cone. Cone is placed in a creel for feeding the yarn to the feeder.
Feeder: Yarn is feed through the feeder. No of feeder is depends on the design of the fabric.
VDQ Pulley: G.S.M of the knit fabric is controlled by VDQ pulley. VDQ pulley is used for controlling the stitch length of the fabric.
Guide: Guide is called the supporting element. Guide is used to guide the yarn.
Sensor: Sensor is an automatic controlling system. When a yarn pass through this sensor than if any yarn break down or any problem occur than it automatically stop by this sensoring system.
Cylinder: Cylinder is the main parts of a knitting machine. Adjustment of a cylinder is important. Cylinder carries needle, sinker, cam and many more.
Spreader: Spreader is used to spread the knitted fabric before take up roller. Knit fabrics may be tube or open type. Spreader is adjusted as need.
Fixation Feeder: This type of feeder is used in electrical auto striper knitting machine to feed the yarn at specific finger.
Rethom: Rethom is used in electrical auto stripper knitting machine.
Different well known companies are manufacturing such types of knitting machine. Day by day they are trying to add some advance technology two facilities best opportunity. In this sense we can consider auto stripe, which gives more opportunity two produce multi-color long stripe knit fabrics. Different zigzag design also can be produced by an auto stripe machine. It is note that, faulty knitting machine parts create knitting faults. To increase the knitting production we should use latest knitting machine.

So, before buying a knitting machine we have to consider these above points.

Circular knitting machine is classified into single circular knitting machine and double circular knitting machine.

1.Single circular knitting machine
1.1)General circular knitting machine: General circular knitting machine has many loops, high rotate speed and output. In China, it is also called as open-top circular knitting machine. General circular knitting machine includes single needle passages, double needle passages, triple needle passages, four needle passages and six needle passages. Utilizing different combinations of triangles, the machine can knit new type textiles. General circular also includes loop transfer single circular knitting machine. The machine is mainly used to knit T-shirts, swimsuit, decorative clothes and industrial clothes.
1.2)Terry machine: Terry machine, also called as towel machine, is classified into single needle passage, double needle passages, four needle passages, single terry machine and double terry machine. Terry machine is used to knit warm clothing and woolen blanket.
1.3)Three-wire liner knitting machine:  Three-wire liner knitting machine commonly known as fleece single knitting machine include single needle passage, double needle passages and four needle passages. The machine can knit interlock fabrics which are classified into single woolen and double woolen.
1.4)Single jacquard machine: Single jacquard machine has two types: mechanical jacquard machine and computer jacquard machine. Mechanical jacquard machine includes disc chuck jacquard machine, plectrum jacquard machine, drum jacquard machine. Computer jacquard machine contains line single jacquard machine, computer jacquard machine, computer line jacquard machine.

2.Double circular knitting machine
2.1)General double circular knitting machine: General double circular knitting machine contains (2+2) needle passages, (2+4) needle passages and (4+4) needle passages three types. (2+4) needle passages are the most commonly adopted. Two needle passages are on dial and four needle passages are on cylinder. General double circular knitting machine is also called as interlock machine, multifunction machine or all powerful knitting machine. Multifunction machine is the most welcomed.
2.2)Rib knitting machine: Rib knitting machine includes (1+1) needle passages, (2+2) needle passages, (2+4) needle passages and (4+4) needle passages four types. Most of corporations adopt (2+2) needle passages rib knitting machine, so as to transfer rib knitting machine. The machine is mainly used to knit T-shirt.
2.3)Double jacquard machine: Double jacquard machine includes mechanical jacquard machine and computer jacquard machine two types. Mechanical jacquard machine includes disc chuck jacquard machine, plectrum jacquard machine, drum jacquard machine. Computer jacquard machine contains line single jacquard machine, computer jacquard machine, computer line jacquard machine. Double jacquard machine also includes double loop transfer circular knitting machine which is used to knit pattern fabrics having holes.

Especially for circular weft knitting machine, circular knitting machine are required to have multi functions. A circular knitting machine can knit various products without being changed or spending too much time changing spare parts. On one hand, the categories of knitted products change frequently. For that, manufactures must adapt to the changes in the market constantly, providing products to meet the demand without putting into more equipments or funds. On the other hand, the prices of new type knitting machine are increasing. The machine being used to knit only one category cannot give full play to its investment benefits.

Multi-function circular knitting machine means that a type knitting machine can change into similar type machine rapidly through standardization, generalization of parts.

1.Exchange between single knitting machine and double knitting machine
In general, single knitting machine needs sinker to assist needle clearing and bending yarns into circular. However, it is difficult for conventional double knitting machine knitting rightly without sinker when it is used to knit single fabrics. Currently, there are two solutions. One is that double knitting machines are equipped with channeling triangle. When top needles are knitting, upper needles erect outside and return before yarn laying. The top needles are regarded as sinker pressing on the old loops of lower needles when bottom needles rising for clearing in case of old loops rising with needle. The other one is more effective solution. Double knitting machine is equipped with sinker to assist needles looping. So, when the machine is knitting double fabrics, the needles initiate automatically without dossal. The machine can recover knitting easily if press-off happens or large hole appears. When it is knitting single fabrics, the machine can utilize sinker to assist needle clearing and bending yarns into circular just like single knitting machine to realize the exchange between single knitting machine and double knitting machine.

2.Exchange of structure of single knitting machine
Based on different categories of knitted fabrics, single knitting machine is classified into single plain knitting machine, three wire wool knitting machine and single terry machine. Track, triangle and other parts have realized standardization and generalization. Parts on those types knitting machine provided by different manufacturers can be changed easily from one type to another type. An engineering technicians only spends 2 hours or 3 hours completing exchange.

3.Exchange of double knitting machine
Double circular knitting machine is generally classified into rib knitting machine and interlock machine. According to different structure of triangle, changing the position of triangle can converse rib or linter, rib composite tissue or linter composite tissue, such as Milano rib, polyester cover cotton and honeycomb mesh. Besides the exchange between rib and linter, multi-function double circular knitting machine can also exchange different tissues to change categories easily.

To adapt the conversion, multi-function double circular knitting machine is added with channeling triangle, besides conventional looping, tuck stitch and loose stitch. Sync or lag stitch cam is caused during looping. When channeling triangle is used for knitting single fabrics, stitch cam on cylinder uses sync or lag stitch cam to knit linter or wide rib.

4.Exchange of number and path
Using the same circular knitting machine can knit fabrics with different thickness for seasons. Changing number is meaningful for manufacturers. To meet the demands of fabric producers, manufacturers have simplified the exchange of cylinder and dial. For example, when transforming X-pattern track into V-pattern track, cylinder should be replaced from top. Now, the cylinder can be replaced from side without disassembling machine. Triangle and yarn guide do not need to be replaced, when interlock machine changed between E18~E28.

Tencel fiber: Tencel fiber is made of natural wood pulp. Wood pulp is dissolved into amine oxide solvent and then spun into yarn directly. As a new cellulose solvent, amine oxide solvent can be recycled without any toxicity or pollution to environment. Besides drapability, etc. The fiber has elegant texture, good breathability and moisture penetrability, being widely used as raw materials of haute couture. The production cannot produce toxic substance and tencel fiber can be dissolved without pollution to environment. For that, tencel fiber is called as green fiber.

Sea island fiber: Sea island fiber is made of sea island superfine fiber and high shrinkage precursor by composite spinning technology. Effect of superfine on surface has been maximized so that it can show effect of imitation leather better. Suede being made of sea island fiber has high flexibility, good elasticity, antibiosis and strong breathability, is a kind of fabric having good anti wrinkle, is ideal raw materials for jacket, wind coat, vest, skirt, shoes, curtain, etc. It can also be used as wiping cloth to clean air plane, precision instrument and computer.

Modal fiber: Modal fiber is made of pulp. Producing of pulp and fiber cannot cause pollution to environment. Modal fiber has high strength and high wet coefficient. It combines with texture of natural fiber and practicability of artificial fiber, having softness, luster, slippery. Breathability of modal fiber is better than cotton. It can be processed on traditional dying and finishing equipments, having high degree of exhaustion. Clothes made of modal fiber have good drapability and dimensional stability. It can still maintain vivid colors and used as raw materials for designer clothes. Modal fiber comes from nature. It will be dissolved and return to nature.

Acetate fiber: Acetate fiber is made of natural pulp after being extracted. It is a kind of semi-synthetic fiber combing with style of natural fiber and the functions of synthetic fiber. It has good dimensional stability, sheen, cooling and drapability like silk. Acetate fiber also has good softness. With natural fiber and synthetic fiber, acetate fiber is knitted into various fabrics such as acetate/glue, acetate/cotton and acetate/spun silk. Acetate fiber is popular for women swear.

Soybean fiber: Soybean used as forage and fertilizer before, can be also used to knit into cloth. Soybean fiber is called as artificial cashmere. Soybean fiber is made of vegetable protein extracted from bean pulp. Soybean fiber has light specific gravity, high elongation and feelings and heat retention like cashmere. Soybean fiber is ideal materials for expansive underwear, cashmere sweater, casual dress, suits, etc.

Jacquard: Jacquard is a kind of textile whose surface has decorative patterns. Jacquard is made of cotton, cotton yarn or yarn. Those decorative patterns distribute on the surface of jacquard. The types of textiles are scattered or arranged. Jacquard can be used to be made from shirts or decorative clothes, after having been bleached or dyed or finished.

Khaki twill: Khaki twill is a kind of twills, having high tightness. Khaki originated from Urdu which widely utilized in South Asian subcontinent, meaning dirt. Initially, protective coloration of military is dyed into the color similar to dirt by a kind of mineral eyes called as khaki. For that, the name of mineral eye is used to nominate the twill. Khaki twill has tight texture, clear textured fabric and wearing resistance. Khaki twill has various categories. Based on structure, khaki twill can be classified into single khaki, double khaki, herringbone khaki and satin weave khaki. Frontage of single khaki has clear textured grain. Single khaki can be dyed into dark blue, variamine blue, gray. It can be made from clothes, panties and labor suit. Double khaki has tight textured fabric, smooth surface and wearing resistance. Dyed double can be used for labor suit. Mottled double khaki can be made from coats. Double khaki is made from clothes, jacket and raincoat after soft shrink proofing and water proofing.

Denim: Denim is also called as jean. Denim is raw materials for labor suit and jeans. It is a kind of damask made of coarse yarn. Denim can be dyed into navy blue. Floating point is on frontage. Denim has the advantages of tight texture and wearing resistance. Denim has elasticity and soft fell after being processed. Besides labor suit, denim is raw materials for jeans and casual dress.

Washer wrinkle fabric: Washer wrinkle fabric is developed for popularization of washing clothes. Washer is dyed and finished. The textile is processed to show style like having been washed. So the textile is named as washer wrinkle fabric. Washer wrinkle fabric has the characteristics of soft feel, stable size. Washer wrinkle fabric is made from coat, shirt, one-piece dress and pajamas.

Velvet: Velvet is made of warp or weft. Short and smooth naps exist on the surface of velvet. The advantages of velvet include tight textile, smooth surface, soft feelings, excellent heat retention and wearing resistance. Velvet has two categories: velveteen being napped of warp and weft velvet being napped of weft. Velveteen having long naps is commonly used for cushion in train, shell fabric of sofa and curtain. Weft velvet is used as raw materials for clothes and decorative clothes.

Corduroy: Corduroy is a kind of textiles whose surface present wick fine hair. Corduroy has characteristics of plum fine hair, wearing resistance and good heat retention. Corduroy is initiated in Lyons, France, 1750. Based on yarns, corduroy can be classified into whole yarn corduroy and semi yarn corduroy. Based on materials, corduroy can be classified into purified cotton corduroy, cotton corduroy. Corduroy has wide usage. It is used as raw materials for clothes, dress, jeans, children’s garments, shoes, hats, home decoration, etc. Corduroy can not be rubbed with hot water. Otherwise it can also not be ironed after being ironed, in case of molting and trichiasis.