The Five Compact Spinning Systems Abroad Such As Lida, Switzerland Are Briefly Described.

Swiss compact's compact spinning system adds a fiber gathering unit consisting of a clustered wind drum, a suction plug and an airflow guiding device before the drafting area.

The compact spinning system of Germany's company has added a pneumatic cluster area in front of the traditional drafting device, consisting of a suction tube, a grid ring and an output upper roller. The suction pipe is in a negative pressure state, and a narrow slot is arranged on each spinning position on the upper part of the suction pipe, and the length of the groove extends from the front roller jaw to the additional grid ring and the upper jaw's jaw line.

When the fiber leaves the front jaw line, it is adsorbed on the grid ring by negative pressure, and the fiber is attached to the grid ring to be delivered to the jaw line of the output roller.

The compact spinning system of Tsing Ze company in Germany is based on the original drafting device of the spinning frame. An output roller is installed in front of the front roller, and the outer rubber roller is attached with a leather ring with holes on the surface, and the leather apron rack, which is made of the whole antistatic plastic, is connected with the negative pressure system through a pparent suction pipe, forming a fiber gathering area.

The Japanese Toyota Corporation's compact spinning system adds a cotton gathering device consisting of a negative pressure suction groove and a porous grid ring on the roller of the drafting mechanism. For the convenience of operation, 4 sets of unit assemblies are used for each cotton gathering device.

The compact spinning system of Switzerland's roc company is placed on the front roller and the guide roller on the front lower roller, and the magnetic compact device is placed between the two rollers, forming a compact area together.

There is no clearance between the closer and the lower roller. The upper and lower rollers form a completely closed negative pressure chamber. The radian at the bottom is exactly the same as the surface of the lower roller. The fiber bundle moves synchronously with the roller, and is pported to the yarn guide jaw through the fibre passage of the closer.

Editor in chief: Xu Qiyun