First, the type of weaving

1. Fiber weaving; 2. Metal braid

Second, the role of weaving

1, the role of fiber braid layer

It is mainly to protect cable insulation from light, heat, rays, various acid and alkali gas erosion, and not to be damaged by external forces. It plays the role of strengthening mechanical strength.

2, the role of metal braid layer

There are mainly two kinds of copper wire and steel wire. The role of copper wire weaving is to prevent external electromagnetic interference and play a shielding role. The shielding effect of eliminating the surface potential of power cable. The shielding effect of safety protection is mainly used for grounding protection and reaction of leakage. The role of steel wire braiding: mechanical protection, withstand longitudinal tension, shield external magnetic field.

Third, weaving equipment

1. Classification of braiding machine: by material - fiber and metal; By structure - vertical and horizontal; By speed - high speed and low speed

2. The number of ingot of braiding machine: 12, 16, 24, 32, 36 and 48 ingot are commonly used.

(1) Low speed braiding machine: the two groups of spindles move at the same speed, in opposite directions, and the tracks are crossed

"8" shape, cross each other to form a weave. Simple structure, slow speed, loud noise. At present, it has been basically eliminated in the cable industry.

(2) High-speed braiding machine: the track of high-speed braiding machine is a circle, the braiding machine has two turntables, each of which has half the spindles fixed, and the direction of movement of the two turntables is opposite. As the turntable moves, the thread on the spindle is drawn out by the swing bar, moving along a specific track slider, causing the thread to pass through the thread on the other turntable, forming a braid. The weaving speed is fast, the efficiency is high, and it can be used for the weaving of fibers and metal wires.

The speed braiding machine is divided into vertical and horizontal two kinds, the horizontal is suitable for the braiding of large section cable, the number of spindles is 36, 48 and so on.

(3) The use of knitting machine characteristics:

A. Ensure the balance of tension of pay-off

b, spindle movement is flexible, low line break rate, with line break stop detection device

c, braided wire speed and pitch can be easily adjusted

d, ensure that the braiding machine has good lubrication

e, noise protection, it is best to use fully enclosed

f, ensure the weaving density, each spindle can be wrapped around 2 to 8 wires.

Fifth, quality control of weaving

1. Measurement of braiding coverage:

a. According to the above calculation formula, measure the relevant parameters for calculation.

b. Weighing method - the weight of the braided layer is compared with the pipe of the same thickness, outer diameter and material, and the Marine cable is stipulated to be not less than 90%.

2, the tightness of the braid layer: the tightness of the braid layer can be adjusted by adjusting the pay-off tension and adjusting the knitting Angle. Angle small braid tight.

3. Ensure that the pay-off tension on each spindle of the braiding machine is balanced, which is the guarantee of good braiding appearance.

Sixth, braiding machine maintenance, maintenance

(1) External maintenance

1. Clean inside and outside, including fuselage, protective cover, transmission box, keep inside and outside clean.

2. Check and fill screws, nuts, handballs, handles, oil cups.

3. Keep the spindle support clean regularly to remove excess metal braid.

4. Keep the area around the ground clean and clean.

(2) Lubrication

1. Check the lubricating oil of the worktable spindle gear box and keep it lubricated.

2. Check the oil circuit of the automatic lubrication system and keep the oil circuit unblocked.

3. Check the oil pump tank level monitor and keep the oil level normal.

4. Swing rod and swing rod seat rotation position, must be filled with butter once a week, do not use the bearing.

5. Lubricate all open gears, chains, retracting and retracting journal, screw, etc.

(3) Electrical appliances

1. Clean motor, control box, electrical box, keep clean.

2. Check electrical switches and circuits to make them neat and reliable.

Qingdao Tianxing Cable Co., Ltd. is a technology enterprise specializing in the production of wire and cable in Shandong Province, with more than 150 sets of domestic excellent cable production equipment and testing equipment, excellent production technology, modern testing equipment, to ensure stable product quality and timely supply. The company's main products are power cable, mineral cable, high life wire and cable, radiation crosslinked cable, control cable, computer cable, photovoltaic cable, communication cable, data cable, low smoke halogen free cable, flame retardant series wire and cable.