Product Introduction：
The form of pinch rolls is developed from swinging type to pagoda type and double pagoda type.
Coiling tension has rolls and finishing mill to form tension, there are rolls and finishing mill and pinch rolls to form tension, rolls and pinch rolls to form tension in three forms. Various tension control methods, the impact on the roll shape is different, especially the thickness of large, high strength strip difference is more obvious.
Double-plaque type pinch rollers of the former pinch rollers from the end of the finishing mill, the establishment of tension, after the pinch rollers from the normal pinch rollers, and in the pinch rollers before the addition of a pressure roller, to prevent the strip from warping.
Product Operation Guide：
Pinch rollers by the upper and lower rolls, the upper roller opening and closing device, roll gap adjustment device and pinch roller transmission device and other components. In order to improve the bite conditions and make the head of the strip downward bending, pinch roller is a pair of large under the small rollers, up and down the rollers between the 10 ° ~ 20 ° of the angle of deviation, the head of the strip into the pinch rollers, the head is forced to bend down into the population of coiling machine guide plate. The upper and lower nip rollers are convex, which is good for strip centring and prolonging the life of the rollers. The post-tensioning of the strip by the nip rolls is determined by the nip rolls' press force and the drive motor. With the high speed of rolling, the strip thickness increases and the material is high strength.
The lower nipping rollers are subjected to a lot of pressure, mostly using solid forged steel rolls; in order to improve wear resistance, the roll surface are surfaced with hard alloys. The upper roller is mounted on the oscillating roller frame, and its opening and closing is controlled by a cylinder. The pressure of the cylinder must be determined according to the clamping force of the pinch roller. After the upper roller is pressed down, the upper and lower rollers need to leave the value of the roll gap between the strip and the pinch roller system stiffness, generally choose than the strip thickness of about 0.4mm small.
For this reason, the pinch roller must be equipped with a roll gap adjustment device to limit the position of the swing roller frame under the pressure to achieve the roll gap adjustment; at the same time, adjust the parallelism of the roll body, in order to improve the quality of coiling. Common roll gap adjustment mechanism has a screw jack type and eccentric shaft type.
Product Introduction：
The form of pinch rolls is developed from swinging type to pagoda type and double pagoda type.
Coiling tension has rolls and finishing mill to form tension, there are rolls and finishing mill and pinch rolls to form tension, rolls and pinch rolls to form tension in three forms. Various tension control methods, the impact on the roll shape is different, especially the thickness of large, high strength strip difference is more obvious.
Double-plaque type pinch rollers of the former pinch rollers from the end of the finishing mill, the establishment of tension, after the pinch rollers from the normal pinch rollers, and in the pinch rollers before the addition of a pressure roller, to prevent the strip from warping.
Product Operation Guide：
Pinch rollers by the upper and lower rolls, the upper roller opening and closing device, roll gap adjustment device and pinch roller transmission device and other components. In order to improve the bite conditions and make the head of the strip downward bending, pinch roller is a pair of large under the small rollers, up and down the rollers between the 10 ° ~ 20 ° of the angle of deviation, the head of the strip into the pinch rollers, the head is forced to bend down into the population of coiling machine guide plate. The upper and lower nip rollers are convex, which is good for strip centring and prolonging the life of the rollers. The post-tensioning of the strip by the nip rolls is determined by the nip rolls' press force and the drive motor. With the high speed of rolling, the strip thickness increases and the material is high strength.
The lower nipping rollers are subjected to a lot of pressure, mostly using solid forged steel rolls; in order to improve wear resistance, the roll surface are surfaced with hard alloys. The upper roller is mounted on the oscillating roller frame, and its opening and closing is controlled by a cylinder. The pressure of the cylinder must be determined according to the clamping force of the pinch roller. After the upper roller is pressed down, the upper and lower rollers need to leave the value of the roll gap between the strip and the pinch roller system stiffness, generally choose than the strip thickness of about 0.4mm small.
For this reason, the pinch roller must be equipped with a roll gap adjustment device to limit the position of the swing roller frame under the pressure to achieve the roll gap adjustment; at the same time, adjust the parallelism of the roll body, in order to improve the quality of coiling. Common roll gap adjustment mechanism has a screw jack type and eccentric shaft type.
