The line characteristics of this type of quilt are, in a pneumatic conveying system, one part of the way the suction pipe is used, and another part of the pipe by the way of blowing. 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. The structure of the double twisting unit of the double twisting machine mainly includes the spindle braking device, the spindle part of the double twisting machine, the yarn winding device, and the special device of the double twisting unit.
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 installation of the wind turbine in the middle of the piping, the material is conveyed from the machine outlet at the rear of the suction pipe, after the fan, and then blown into the air inlet at the front of the machine. For example, a quilt air delivery line system can be used with this type of cotton. It is suitable for application to raw cotton fans.
Figure 5-4 is a schematic diagram of the air suction mixed air supply system of the quilt production line. The fan 1 is installed in the middle of the cotton pipe, the pipe 2 behind the fan is the suction flow, and the pipe 8 in front of the fan is the blowing flow. The raw cotton is sucked from No. 11 to No. 2 of the total brocade feeding machine, and is blown into No. 3 by the fan No. 1, and is driven forward.
When the raw cotton passes through the cotton head 4, part of the raw cotton falls into the No. 10 cotton feeding box (the lower end of the cotton head is connected to the feeding box of the carding machine), and part of the raw cotton continues to move forward and falls into the feeding cotton under the front cotton head. box, the excess pulling drums 5 and 8 are returned to the main cotton feeder for reuse, and the air is discharged by the fan. Separating the return pipe from the atmosphere in the middle of the pipe is an effective measure to stabilize and control the static pressure of the pipe system. In the return pipe 5 behind the separation part, the blower 1 generates a blowing air flow.
Install a conical pipe or spring pipe 6 at the outlet of the return pipe to control the static pressure of the pipeline system (reducing the diameter of the conical pipe can increase the static pressure of the pipeline). In the air distribution system, the green pressure in the cotton head affects the movement of the raw cotton in the feeding box. Generally, it is necessary to keep the static pressure of the cotton head on the water column of about 40 mm, and the raw cotton can move down in the feeding box more smoothly and slowly (the feeding box is generally 1000 mm wide, 90-100 mm thick, and 2000 mm high).
The suction air flow generated by the blower of the condenser 9 in the return pipe 8 in front of the separation part. A flare 7 is installed at the entrance of the cotton tube 8 to receive the cotton sent from the tapered tube 6 .