Snap-in anti-warping device of straightening machine

Abstract

The utility model relates to a straightener bite anti-warping device, including fixed guide rail, fixed pinch roll, movable pinch roll, hydraulic cylinder, rib plate, piston rod, cold metal detector and cold bed exit roll, fixed pinch roll, hydraulic cylinder and cold bed exit roll are arranged in front of straightener in proper order and on fixed guide rail, hydraulic cylinder is connected with piston rod, and the rib plate is connected with cold metal detector. The piston rod is connected with the rib plate through a shaft, the movable pinch roll is arranged at the end part of the rib plate, the fixed pinch roll is arranged at a position corresponding to the movable pinch roll to form pinch, and the cold metal detectors are symmetrically arranged on the edge of the fixed guide rail between the cold bed outlet roll and the hydraulic cylinder. Rolled steel with large head warping can smoothly enter a straightening machine after being cooled by a cooling bed, the situation that the steel is separated from a roller way or collides with surrounding equipment due to the fact that the steel is difficult to bite and serious in warping and the roller way is not stopped in time is eliminated, and safety risks are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of steel plate warping control, in particular to a straightening machine biting anti-warping device. Background Art

[0002] The straightening machine is used to straighten metal profiles, bars, pipes, wires, etc. The straightening machine squeezes the bars through straightening rollers to change their straightness. After the rolled steel is cooled on the cooling bed, the head is warped greatly, which will cause difficulty in biting into the straightening machine in the next straightening process. If the warping is serious and the roller operation is not stopped in time, the steel may fall off the roller or hit the surrounding equipment, posing a certain safety risk.

[0003] A Chinese patent with publication number CN203610442U discloses a device for detecting warping of a steel plate head of a straightening machine, including a detection device, a trigger device and a roller control device of the straightening machine. The detection device is installed at the feed port of the straightening machine, the trigger device is connected to the roller control device of the straightening machine through a control circuit, the detection device includes a base and a swing arm, the swing arm is connected to the base through a rotating shaft, the trigger device includes a touch switch and a signal trigger short arm, the signal trigger arm is fixed on the shaft sleeve of the swing arm, the touch switch is fixed on the base, and when the swing arm rotates to a predetermined position, the signal trigger arm touches the touch switch; the utility model effectively prevents the collision of the deformed steel plate on the straightening machine and ensures the stable operation of the straightening machine; but although the device plays a detection role, it does not play an anti-warping role. Summary of the invention

[0004] The utility model provides a straightening machine biting anti-warping device, which can smoothly enter the straightening machine after the steel with a large head warping after rolling is cooled on a cooling bed, thereby eliminating the difficulty of biting in and the situation where the steel is separated from the roller or hits the surrounding equipment due to serious warping and failure to stop the roller in time, thereby avoiding safety risks.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A straightening machine bite-in anti-warping device comprises a fixed guide rail, a fixed pinch roller, a movable pinch roller, a hydraulic cylinder, a rib plate, a piston rod, a cold metal detector and a cooling bed outlet roller, wherein the fixed pinch roller, the hydraulic cylinder and the cooling bed outlet roller are sequentially arranged in front of the straightening machine and on the fixed guide rail, the hydraulic cylinder is connected to the piston rod, and the piston rod is connected to the rib plate through the cylinder body, the movable pinch roller is arranged at the end of the rib plate, the fixed pinch roller is arranged at a position corresponding to the movable pinch roller to form pinching, and the cold metal detector is symmetrically arranged on the edge of the fixed guide rail between the cooling bed outlet roller and the hydraulic cylinder.

[0007] Furthermore, the cold metal detector is arranged at a distance of 1.5 to 2 m from the exit roller of the cooling bed, and its height is 0 to 20 mm higher than the exit roller of the cooling bed.

[0008] Furthermore, the piston rod extends for a distance of 0 to 160 mm.

[0009] Furthermore, the hydraulic cylinder, the fixed pinch roller and the cooling bed outlet roller are all arranged on the same axis of the fixed guide roller, and the axis heights of the fixed pinch roller and the cooling bed outlet roller are consistent.

[0010] Furthermore, it also includes a hand wheel, and the hand wheel is connected to the piston rod.

[0011] Furthermore, it also includes a PLC control system, a cooling bed exit roller motor and a movable pinch roller motor, wherein the output shaft of the cooling bed exit roller motor is connected to the cooling bed exit roller, the output shaft of the movable pinch roller motor is connected to the movable pinch roller, the input end of the PLC control system is connected to the cold metal detector signal line, and the output end of the PLC control system is electrically connected to the cooling bed exit roller motor and the movable pinch roller motor.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1) Use a symmetrically arranged cold metal detector to detect the steel-outlet signal of the roller table at the cooling bed exit in real time, so as to perform pinching and anti-warping through the pinch roller device;

[0014] 2) The setting of hydraulic cylinder, piston rod, movable pinch roller and fixed pinch roller makes the pinching and anti-warping of steel more effective;

[0015] 3) It eliminates the difficulty of biting into the straightening machine in the next straightening process due to the large warping of the head of the rolled steel after cooling on the cooling bed;

[0016] 4) After the rolled steel is cooled on the cooling bed, the head is severely warped. If the roller operation is not stopped in time, there is a safety risk that the steel will fall off the roller or hit the surrounding equipment. The existing safety risk should be avoided.

[0017] 5) With the help of the straightening machine biting anti-warping device, human participation in the straightening machine biting process is reduced, and the safety and accuracy of the biting process are further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a schematic diagram of the positions of the movable pinch rollers and cooling bed exit rollers and their respective motors.

[0020] In the figure: 1. Fixed guide rail 2. Fixed pinch roller 3. Movable pinch roller 4. Hydraulic cylinder 5. Rib plate 6. Piston rod 7. Cold metal detector 8. Cooling bed exit roller motor 9. Movable pinch roller motor 10. Cooling bed exit roller 11. Hand wheel DETAILED DESCRIPTION

[0021] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings:

[0022] See Figure 1 , is a schematic diagram of the structure of the utility model. The utility model is a straightening machine bite-in anti-warping device, including a fixed guide rail 1, a fixed pinch roller 2, a movable pinch roller 3, a hydraulic cylinder 4, a rib plate 5, a piston rod 6, a cold metal detector 7, a cooling bed outlet roller 10, a hand wheel 11, a PLC control system, a cooling bed outlet roller motor 8 and a movable pinch roller motor 9. The fixed pinch roller 2, the hydraulic cylinder 4 and the cooling bed outlet roller 10 are sequentially arranged on the same axis of the fixed guide roller in front of the straightening machine. The axis heights of the fixed pinch roller 2 and the cooling bed outlet roller 10 are consistent. The hydraulic cylinder 4 is connected to the piston rod 6. The piston The extension distance of the rod 6 is 0 to 160 mm. The piston rod 6 is connected to the rib plate 5 through the cylinder body. The movable pinch roller 3 is arranged at the end of the rib plate 5. The fixed pinch roller 2 is arranged at a position corresponding to the movable pinch roller 3 to form a pinch. The cold metal detector 7 is symmetrically arranged on the edge of the fixed guide rail 1 between the cooling bed outlet roller 10 and the hydraulic cylinder 4. The cold metal detector 7 is arranged at a distance of 1.5 to 2 m from the cooling bed outlet roller 10, and the height is 0 to 20 mm higher than the cooling bed outlet roller 10. The hand wheel 11 adjusts the extension amount of the piston rod 6. Figure 2 The output shaft of the cooling bed exit roller motor 8 is connected to the cooling bed exit roller 10, the output shaft of the movable pinch roller motor 9 is connected to the movable pinch roller 3, the input end of the PLC control system is connected to the signal line of the cold metal detector 7, and the output end of the PLC control system is electrically connected to the cooling bed exit roller motor 8 and the movable pinch roller motor 9.

[0023] Working principle: Steel is transported toward the straightening machine along the cooling bed exit roller 10 and the fixed pinch roller 2. The cooling bed exit roller motor 8 rotates to drive the steel forward. The steel drives the fixed pinch roller 2 to rotate passively. After the cold metal detector 7 detects the steel-out signal of the cooling bed exit roller 10, the signal is sent to the PLC. The PLC sends a control signal to control the movable pinch roller motor 9 to press the movable pinch roller 3 down for operation. The pressing position can also be manually fine-tuned by the hand wheel 11. The steel enters the cooling bed exit roller 10 and the pinch roller device into the straightening machine in turn. When the cold metal detector 7 detects the tail of the steel, the movable pinch roller 3 delays and controls the movable pinch roller motor 9 to stop, and the movable pinch roller 3 is lifted.

[0024] It has changed the original system of relying solely on manual adjustment to control the biting, and the safety and accuracy of the biting process have been further improved. It has eliminated the difficulty in biting into the straightening machine in the next straightening process due to the large warping of the head of the rolled steel after cooling on the cooling bed. In addition, if the head of the rolled steel is severely warped after cooling on the cooling bed and the roller operation is not stopped in time, there is a safety risk that the steel will fall off the roller or hit the surrounding equipment, thus avoiding the existing safety risks.

[0025] The above embodiments are implemented based on the technical solution of the utility model, and detailed implementation methods and specific operation processes are given, but the protection scope of the utility model is not limited to the above embodiments. The methods used in the above embodiments are conventional methods unless otherwise specified.

Claims

1. A straightening machine biting anti-warping device, characterized in that: It includes a fixed guide rail, a fixed pinch roller, a movable pinch roller, a hydraulic cylinder, a rib plate, a piston rod, a cold metal detector and a cooling bed outlet roller. The fixed pinch roller, the hydraulic cylinder and the cooling bed outlet roller are sequentially arranged in front of the straightening machine and on the fixed guide rail. The hydraulic cylinder is connected to the piston rod, and the piston rod is connected to the rib plate through the cylinder body. The movable pinch roller is arranged at the end of the rib plate, and the fixed pinch roller is arranged at a position corresponding to the movable pinch roller to form pinching. The cold metal detector is symmetrically arranged on the edge of the fixed guide rail between the cooling bed outlet roller and the hydraulic cylinder.

2. A straightening machine bite-in anti-warping device according to claim 1, characterized in that: The cold metal detector is arranged at a position 1.5 to 2 m away from the exit roller of the cooling bed, and its height is 0 to 20 mm higher than the exit roller of the cooling bed.

3. A straightening machine bite-in anti-warping device according to claim 1, characterized in that: The piston rod extends to a distance of 0 to 160 mm.

4. A straightening machine bite-in anti-warping device according to claim 1, characterized in that: The hydraulic cylinder, the fixed pinch roller and the cooling bed outlet roller are all arranged on the same axis of the fixed guide roller, and the axis heights of the fixed pinch roller and the cooling bed outlet roller are consistent.

5. A straightening machine bite-in anti-warping device according to claim 1, characterized in that: Also included is a hand wheel, which is connected to the piston rod.

6. A straightening machine bite-in anti-warping device according to claim 1, characterized in that: It also includes a PLC control system, a cooling bed outlet roller motor and a movable pinch roller motor, wherein the output shaft of the cooling bed outlet roller motor is connected to the cooling bed outlet roller, the output shaft of the movable pinch roller motor is connected to the movable pinch roller, the input end of the PLC control system is connected to the cold metal detector signal line, and the output end of the PLC control system is electrically connected to the cooling bed outlet roller motor and the movable pinch roller motor.

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