Because of the continuous production of copper wire drawing equipment, the drawing speed will gradually be out of step with annealing, which will cause the wire diameter to change discontinuously and irregularly due to the slow and fast drawing speed. The causes of this phenomenon are as follows: 1. The instability of tension on the storage wheel. There may be more places where the air pressure is used in the production workshop, which will cause the air pressure of the air pump of the wire drawing machine to increase or decrease, which will make the tension of the wire storage device not constant, and because the speed of wire drawing is unchanged, the pulling force on the wire drawing is not constant, which can cause the deviation of the outer diameter of the single wire to be unable to be accurately controlled. 2. Chatter of copper wire on annealing wheel. This makes the copper wire annealed in the state of relaxation and tightness, the current density of annealing is large and small, and the strength of copper wire is relatively low at high speed, so it is easy to cause the copper wire to ignite on the annealing wheel, making the surface of copper wire uneven due to the role of sparks. 3. Wear and tear caused by long-term use of main motor gearbox. This can make the constant speed wheel speed of wire drawing not match the traction speed and take-up speed, thus forming the single wire drawing. Solution: lubricate the wire accumulator well, avoid the reverse friction force on the wire during high speed operation, and then make the wire drawing thin; adjust the tension of the wire, so that the wire drawing stroke is always close to the annealing wheel; ensure the integrity of the annealing wheel steel ring, and avoid the unstable annealing current due to the surface defects of the ring. According to the actual situation of wire drawing machine, the drawing machine is rearranged: according to the drawing principle, the annealing wheel speed/speed of the constant speed wheel = forward slip coefficient * diameter of the constant speed wheel/diameter of the annealing wheel, in which the diameter of the constant speed wheel and the annealing wheel is known, and the speed of the constant speed wheel and the annealing wheel can also be measured, thus the forward slip coefficient can be obtained, and the slip coefficient can be used for the wire drawing machine. Re-allocation of the die, so that the allocation of the die can meet the requirements.

1. The sizing area of drawing die will be enlarged due to normal wear and tear during continuous production. 2. Because of the quality problems of various poles. In the process of production, rod quality defects occur irregularly, which causes single wire to be broken by various unpredictable tensions during drawing deformation. This situation rarely occurs in rods in good times. 3. Because of the unsteady annealing current in production, the current is suddenly on the high side, and the single wire is pulled off or fused by abrupt strong current during annealing. Solution: According to different rod material, choose different matching scheme, and constantly explore in production. For example, in the production of copper rods produced by up-drawing method, 8 drawing dies are needed for drawing 2.53mm single wire, while in the production of single wires with the same outer diameter, if the rod is used, an additional bridge-passing die should be added when matching the die according to the requirements; before production, sufficient self-inspection should be done for the copper rod to be produced, quality defects of the copper rod should be found in time, corresponding countermeasures should be found in time according to different conditions, or wire drawing speed should be reduced. Degree, or remove the defect in this paragraph. In production, we constantly observe whether the annealing current of wire drawing is normal, especially when it is just started, we should pay special attention to the change of annealing current, adjust the annealing current according to the change of line speed, and then make the annealing current increase slowly with the increase of line speed, so as to ensure the normal operation of the equipment.

1. The temperature of cooling water in the sealed chamber is too high to exceed 40 C, so that the sealed chamber can not achieve the required cooling effect on the single filament, resulting in the high temperature of the single filament after annealing, and oxidation in the air at high temperature. 2. The insufficient content of saponification liquid in the cooling fluid of the sealing chamber will increase the friction between the single filament and the guide wheels, and then the temperature of the single filament will rise again, resulting in the oxidation of the surface of the single filament. 3. The water pressure and quantity of cooling water in the sealed chamber are insufficient, so that the single wire can not achieve satisfactory cooling effect. Solution: Check regularly whether the equipment of cooling circulating water works normally and the cooling effect is normal; add the substance that can increase the concentration of saponification solution in the sealed chamber at intervals of a certain time, so as to change the content of saponification solution in the cooling water and ensure that the monofilament can run normally on the guide wheel; Check regularly whether the water pressure of circulating water is normal, and constantly according to the water during production. The change of pressure changes the pressure and quantity of cooling water entering the sealed chamber.

Because of the continuous production of copper wire drawing equipment, the drawing speed will gradually be out of step with annealing, which will cause the wire diameter to change discontinuously and irregularly due to the slow and fast drawing speed. The causes of this phenomenon are as follows: 1. The instability of tension on the storage wheel. There may be more places where the air pressure is used in the production workshop, which will cause the air pressure of the air pump of the wire drawing machine to increase or decrease, which will make the tension of the wire storage device not constant, and because the speed of wire drawing is unchanged, the pulling force on the wire drawing is not constant, which can cause the deviation of the outer diameter of the single wire to be unable to be accurately controlled. 2. Chatter of copper wire on annealing wheel. This makes the copper wire annealed in the state of relaxation and tightness, the current density of annealing is large and small, and the strength of copper wire is relatively low at high speed, so it is easy to cause the copper wire to ignite on the annealing wheel, making the surface of copper wire uneven due to the role of sparks. 3. Wear and tear caused by long-term use of main motor gearbox. This can make the constant speed wheel speed of wire drawing not match the traction speed and take-up speed, thus forming the single wire drawing. Solution: lubricate the wire accumulator well, avoid the reverse friction force on the wire during high speed operation, and then make the wire drawing thin; adjust the tension of the wire, so that the wire drawing stroke is always close to the annealing wheel; ensure the integrity of the annealing wheel steel ring, and avoid the unstable annealing current due to the surface defects of the ring. According to the actual situation of wire drawing machine, the drawing machine is re-molded: the adjustable diameter of triangular pulley on annealing wheel drive shaft is adjusted according to the drawing principle, so that the annealing wheel speed/speed of constant wheel = forward slip coefficient * diameter of constant speed wheel/diameter of annealing wheel, in which the diameter of constant speed wheel and annealing wheel is known, and the speed of constant speed wheel and annealing wheel can also be measured, from which the speed of constant speed wheel and annealing wheel can be obtained. Front slip coefficient can be used to reallocate the die of the wire drawing machine from the slip coefficient, so that the die can meet the requirements.

Take-off rack, annealing take-up of main engine, main engine dividing into line wheel, drive gear axle bearing eyeball base extension wheel eyeball mould cooling water pipe take-up of main engine box oil tank cover