What Is a Spinning Machine?

A textile machine twists many plant fibers together into threads or yarns that can be used to weave cloth. The earliest spinning machines were very simple and were used in the 14th century. After the 18th century, people invented better spinning machines, and this spinning machine made the textile industry the largest industry. All spinning machines only do two things: first, a large number of short fibers are aggregated into loose cotton threads, then the cotton threads are pulled out a little bit, twisted into fine cotton threads, and the cotton threads become longer after twisting.

Spinning

Spinning was originally a very ancient activity. Since prehistoric times, humans have known how to spin some shorter fibers into yarn and then weave it into cloth. The so-called spinning is to take animal or plant fibers and twist them to form a continuous and infinite extension.

In order to obtain yarns with different quality standards, different spinning methods and spinning systems should be adopted for different fiber materials.

The initial processing of cotton is often referred to as ginning or ginning. Generally, the percentage of lint obtained after ginning of 50 kg of seed cotton to the seed cotton is called the percentage of the seed cotton, also known as the lint production rate. The percentage of the clothing is generally 31% to 42%.

The basic requirements for ginning are as follows: (1) Protect the original quality of the fiber. The natural characteristics and length, capacity, maturity, and color of cotton fibers determine the corresponding spinning value. Therefore, different varieties, different grades, and different lengths of seed cotton cannot be mixed and processed. When ginning, it is necessary to reduce as much as possible the breakage of fibers, the crushing of cottonseeds, and the large amount of cotton lint into the lint, especially to prevent defects such as neps.

(2) Remove impurities from the fiber. (3) According to different varieties and grades, they are packed and compiled separately.

1. The warehouse should avoid the bustling downtown, close to the edge of the urban area with water sources, and be in the upwind or side wind direction that prevails in the area all year round, and should build a fence or take other protective measures. The distance between raw materials warehouses, storage yards, outdoor substations, and buildings should be arranged in accordance with the specific requirements of relevant national regulations.

2. Flammable buildings shall not be built in raw material warehouses and storage yards. It is not appropriate to set up restrooms and custodian offices in the warehouses. The fire resistance level, the number of floors and the area of the warehouse should meet the relevant regulations.

3 There should be a certain amount of raw materials stored in the warehouse. Channels are left between the stacks. The width of the main channel should be at least 2 meters, and the small channel should be at least 1.5 meters to facilitate operation and ventilation. In the first and second class fire-resistant warehouses, the height of the stack from the roof is not less than 2 meters; in the herringbone roof and the third-class fire-resistant warehouses, the height of the stack from the beam is not less than 1 meter.

4. When raw materials with a total storage capacity of more than 5,000 tons are exposed in large and semi-open storage yards, sub-stacking yards shall be set up, and the fire prevention distance between the yards shall be maintained at least 30 meters. The bottom area of each stack should be less than 100 square meters and the stack height should be less than 6 meters. The stacks are arranged in groups, each group is less than 6 stacks, the distance between the stacks is greater than 6 meters, and the distance between the groups is greater than 15 meters. The distance between the stack and the external wall is greater than 5 meters. The pile foundation needs to be moisture-proof, and the top of the pile is covered with a cloth to prevent rain and flying fire from falling into the pile. Do not tie the cloth with metal such as iron wire to prevent induced current from lightning strikes.

5. Treasury shall not be equipped with power cords and electrical appliances, and floodlights may be used in the warehouse. Before the power supply of the power source is changed, the electricity used in the warehouse should be in the external socket of the warehouse, and the rubber sheathed cable with no damage and no connectors should be introduced into the warehouse, and the power should be cut off immediately after it is used up. No raw materials should be stacked under wires, sockets and switches.

6. The cables in the reservoir area should be buried cables. When an overhead line is required, it should pass through the outside of the warehouse, and do not pile raw materials off the line. Over the passageway for transporting raw materials in the reservoir area, the overhead line must be more than 5 meters from the ground.

7. Electrical circuits and equipment must not be overloaded. Inspect the lines and equipment more than once a week, and conduct insulation shake tests more than twice a year. If abnormal conditions such as short circuit and insulation aging are found, they must be stopped immediately for inspection.