The company was founded in 1998, a professional Fabric Recycling Machine Manufacturer in China.
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The company was founded in 1998, a professional Fabric Recycling Machine Manufacturer in China.
In order to obtain better quality sliver, after the carding type is determined, it is extremely important to reasonably determine the technical parameters such as the output speed, draft ratio and roller pressure of the carding machine. Special equipment for the textile industry on the winder. As the last process of spinning and the first process of weaving, winding is the link between the past and the next.“bridge”Therefore, it occupies an important position in the textile field.
During the spinning process of the spinning frame, the semi-finished roving or sliver is drafted, twisted, and wound into a spinning machine. The combed sliver and the needle-carding machine combine the sliver, the needle row is drafted to improve the sliver structure, and the roving is further spun into spun yarn on the ring spinning frame, which is the main spinning machine. Carding machines are used to process cotton fibers and chemical fibers and belong to textile machinery. According to the spinning process, carding is an important process.
The front process of the carding machine is the opening and cleaning machine, and the latter process is the drawing frame (carding process) or the sliver coiler (combing process). (1) The number of passes of the carding machine It is very important to choose an appropriate number of process paths to improve the uneven cross-section of the strip and improve the mild and uniform effect, which is more prominent in the blending of cotton and chemical fibers. At the same time, the number of parallel processes is also limited by the direction of the fiber hooks.
The number of process equipment between carding and spinning should conform to odd-numbered configuration, and the number of process equipment between carding and carding should conform to even-numbered configuration, see Table 6-1. (2) Sliver speed The speed of the carding machine is represented by the speed of the roller output line. It is the main symbol to measure the modernization level of the carding machine.
1. Manufacture and increase form automation draft to improve the type of carding machine and parts of transmission mechanism, in terms of belt fast pace, since carding machine 1242 is 30-70m/min, A272 series card 120 up to 250m/min, FA302, FA311 The carding machine is further raised to 150 ~ 400 m/min, FA306, FA308 types are up to 600 m/min. 2. When spinning chemical fiber, the speed of the processed product is too high, and it is easy to cause static electricity, winding the rubber roller and the roller, so the sliver speed is lower than when spinning pure cotton, generally 10% to 20% lower. The range of cotton pre-winding speed before combing is slightly greater than the speed of the well strip after combing, because after combing, the fibers have good straightness in the parallel direction, the cotton sliver is rotten, and the speed requirement is too high, and it is easy to wind the cots and rollers.
image 3. The speed of the two-eye card is faster than that of the four-eye card. For the same type of card, in order to consider the supply (quantitative supply) of the front and rear cards, the carding speed of the first card needs to be slightly higher than that of the two cards to ensure the pre-production and post-production demand supply .
(3) The total drafting ratio The total drafting movement ratio should be close to the combined number. During production, the range of use can generally be selected to be 0.9 to 1.2 times the combined number. (4) Roller pressure roller, roller speed, main form draft of sliver, draw ratio, etc. factors from the nip roller. The size of the pressure roll nip should ensure that the clamping force can be adapted to the stretching force so that the yarn does not slip in the nip to avoid conventional uniformity.
For example, the amount of pressure roller carding machine FA302, from the front (N/single end) to the back: 120X300X60 (pressure bar) X320X300.
cotton fabric waste recycling machine
The company has grown into a large-scale and professional machinery manufacturing enterprise integrating riveting and welding production, machining and assembly.