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The quilt carries the clarity of the line shed

Author:Xinjinlong Machinery-Fabric Recycling Machine Manufacturer

When using multiple weaving heald frame quilt production lines, each heald is different due to the unequal distance from the weaving fell, and factors such as the limitation of the mechanism by the height of the frame, when the shed is fully opened, the mouth is clearly formed without help. 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.

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).

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. , related to shed sharpness and smooth warp and weft reduction of broken ends, etc., Rachel's. The quilt is usually divided into a shed with clear lines, and the shed is an unclear semi-clear shed for three people.

1. The quilt production line can clear the shed. When the shuttle is full, the upper and lower warp yarns at the front of the shuttle are in the same plane, which is called clear shuttle, as shown in Figure 6-11 (1. Obviously, the condition for obtaining clear closing is , the movement of each page frame must be proportional to their distance from the mouth, that is: under other conditions being the same, the effective space at the front of the transparent shed is the largest, and the weft insertion conditions are the best, suitable for any weft insertion method, It is especially suitable for air jet weft insertion. However, when there are more harnesses, the tension of the front and rear harnesses is greater than that of the front harness, and the yarn is prone to breakage.

Therefore, when pulling the heald frame, the warp with more up and down movement or less elasticity and strength should be used as far as possible, and it should be worn in front of the heald frame as much as possible to reduce the warp breakage. Shed clearing is usually used on quilt production lines. 2. When the semi-clear shed is fully opened, all the lower warp yarns at the front of the interface are in the same plane, while the upper warp yarns are not in the same plane. Such a shed is called a semi-clear shed. For example, because 6- As shown in 11(2), because the lower warp yarns are completely flush, it is beneficial for the shuttle to fly smoothly, and the warp yarn tension is relatively uniform.

The opening mechanism for forming this kind of shed is relatively complicated, and this kind of shed can be used when the speed of the quilt production line is not very high. 3. When the unclear shed is fully opened, the upper and lower warp yarn directions at the front of the shed cannot be in the same control plane. Such a shed is called an unclear shed, as shown in Figure 6-11 (3 ) shown. Obviously, the front part of this shed forms the smallest effective development space, and the shed is not clear, which is extremely important and unfavorable for weft insertion. In actual production, this kind of shed is generally not used.

However, due to the equal movement of the heald frames on each page, the warp tension analysis is relatively uniform. At the same time, because the upper and lower warp yarns are not in the same data plane in China, it is beneficial to prevent the warp yarn colors from sticking to each other in the process. Therefore, for fabrics with high warp density and high requirements on flatness and quality, it is also possible to fully consider the use of enterprises for This shed.


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