CN211277651U - Steel plate length measuring device - Google Patents

Abstract

The utility model discloses a steel plate length measuring device, which comprises a cylinder, wherein the upper side of the cylinder is connected with a bottom plate, and the lower side of the cylinder is hinged with a measuring unit; the rear side of the swing rod is hinged to the shearing machine, the middle of the swing rod is hinged to the air cylinder, the front side of the swing rod is provided with a length measuring roller, and a length measuring roller shaft of the length measuring roller is connected to the front end of the swing rod; the swing rod is also provided with an encoder, the end part of the encoder shaft and the end part of the length measuring roll shaft are provided with belt pulleys which are matched with each other, and the two belt pulleys are matched and connected through a toothed belt; and a photoelectric switch for detecting the steel plate is also arranged below the shearing machine. The counterforce that produces behind this device length measuring roller contact steel sheet directly acts on pendulum rod and cylinder, can not produce the damage to other parts, and the fault rate is lower, and can measure the curved great steel sheet of hook, has avoided the auxiliary process of artifical setting-out, has improved steel sheet shearing efficiency, has eliminated the unsafe factor that artifical station measured the setting-out above the steel sheet.

Description

Steel plate length measuring device

Technical Field

The utility model relates to an online length measuring device of steel sheet belongs to steel production and processing technical field such as metallurgy, shipbuilding.

Background

At present, most of hot rolled steel plate finishing shearing lines in China are all configured with an online steel plate length measuring device, most of measuring devices for steel plates rely on laser or length measuring rollers to measure, the laser length measuring device is expensive, requirements for use conditions are strict, and maintenance cost is high. And the length measuring roller that original design steel sheet was cuted and is used designs structure more complicacy to length measuring roller detects the position and is nearer apart from steel sheet limit portion, only has more than 100 millimeters, and when cutting through the crop segmentation to the curved steel sheet of hook, the length measuring roller can't be pressed the steel sheet and is detected, needs the manual work to the steel sheet manual measurement and cut after limit portion setting-out, influences the operating efficiency and brings unsafe operation factor. Therefore, it is necessary to design a steel plate length measuring device which has simple structure and low maintenance cost and meets the actual field working conditions.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a steel sheet length measuring device to solve the problem among the prior art.

The utility model discloses a realize through following technical scheme: a steel plate length measuring device is characterized in that: comprises a control unit and a measuring unit; the control unit comprises an air cylinder, the upper side of the air cylinder is connected with a bottom plate welded on the shearing machine through an air cylinder lug seat, and the lower side of the air cylinder is hinged with the measuring unit; the measuring unit comprises a swing rod, the rear side of the swing rod is hinged to the shearing machine through a swing rod lug seat, the middle part of the swing rod is hinged to the air cylinder, the front side of the swing rod is provided with a length measuring roller matched with the steel plate, and a length measuring roller shaft of the length measuring roller is connected to the front end of the swing rod through a bearing seat; the end part of the encoder shaft and the end part of the length measuring roll shaft are provided with belt pulleys which are matched with each other, and the two belt pulleys are matched and connected through a toothed belt; and a photoelectric switch for detecting the steel plate is also arranged below the shearing machine.

The utility model has the advantages that: the device can be installed in a position which does not interfere with other moving parts according to the arrangement condition of the existing parts of the shearing machine. The counter force that produces behind the length measuring roller contact steel sheet directly acts on pendulum rod and cylinder, can not produce the damage to other parts, and the fault rate is lower, and can measure the great steel sheet of hook curve, has avoided the auxiliary process of artifical setting-out, has improved steel sheet shearing efficiency, has eliminated the unsafe factor that artifical station measured the setting-out above the steel sheet.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic top view of the structure of FIG. 1;

the sequence numbers in the figures illustrate: 1 is a bottom plate; 2 is a cylinder lug seat; 3 is a cylinder; 4 is a swing rod ear seat; 5 is a photoelectric switch; 6 is a swing rod; 7 is an encoder; 8 is a transition flange; 9 is an encoder shaft; 10 is a bearing seat; 11 is a length measuring roller; 12 is a length measuring roll shaft; 13 is a belt pulley; 14 is a toothed belt; and 15 is a shearing machine.

Detailed Description

As shown in fig. 1-2, the steel plate length measuring device of the structure of the present invention comprises a control unit and a measuring unit; the control unit comprises a cylinder 3, the upper side of the cylinder is in threaded connection with a bottom plate 1 welded on the shearing machine through a cylinder lug 2, and the lower side of the cylinder is hinged with the measuring unit; the measuring unit comprises a swing rod 6, the rear side of the swing rod is hinged to the shearing machine through a swing rod lug seat 4, the middle part of the swing rod is hinged to the air cylinder, the front side of the swing rod is provided with a length measuring roller 11 matched with the steel plate, and a length measuring roller shaft 12 of the length measuring roller is connected to the front end of the swing rod through a bearing seat 10; the swing rod is also provided with an encoder 7, the encoder is connected with the swing rod through an encoder shaft 9 in a shaft coupling mode, belt pulleys 13 which are matched with each other are arranged at the end part of the encoder shaft and the end part of the length measuring roll shaft, and the two belt pulleys are connected in a matching mode through a toothed belt 14; and a photoelectric switch 5 for detecting the steel plate is also arranged below the shearing machine.

Preferably, the encoder 7 is connected to the rocker 6 via a transition flange 8.

Specifically, the steel plate length measuring device is arranged in the lower area of the front panel of the shearing machine 15, the transverse installation position of the shearing machine can be adjusted according to the interference condition of other parts of the shearing machine, and the distance between the length measuring roller and the steel plate after the length measuring roller is pressed to the steel plate is 300-500 mm from the edge of the steel plate. The main function is to measure the head cutting, tail cutting and daughter board sizing of the mother board cut by the head cutter. The welding bottom plate 1 and the swing rod lug seat 4 are fixed below the front panel of the shearing machine in a welding mode, and the vertical installation position and distance between the welding bottom plate 1 and the swing rod lug seat 4 are guaranteed. The cylinder lug seat 2 is fixed on the welding bottom plate 1 through a bolt, and the cylinder 3 and the cylinder lug seat 2 are hinged together through a copper sleeve and a pin shaft, so that the cylinder can stably swing without torsion in the operation process. The swing rod 6 and the swing rod lug seat 4 are hinged together through a copper sleeve and a pin shaft, and when the steel plate contacts the length measuring roller 11, the length measuring roller 11 rotates under the driving of friction force between the steel plate and the length measuring roller. The length measuring roller 11 is connected with the length measuring roller shaft 12 through a key, the length measuring roller shaft is connected with a corresponding belt pulley through a key, the length measuring roller shaft 12 is positioned through two bearing blocks 10 and bearings, and the bearing blocks 10 are fixed on a swing rod 6 with positioning grooves through bolts. The encoder shaft is positioned on the swing rod 6 with an internal concave hole through two sets of bearings, the encoder 7 is fixed with the transition flange 8 through bolts, the corresponding belt pulley is fixed with the encoder shaft through a key, and the two belt pulleys transmit the rotating speed through a toothed belt 14 with the same modulus. Therefore, the length measuring roller rotates to drive the encoder to rotate, and the walking length of the steel plate when contacting the length measuring roller can be calculated according to the rotating ring speed of the encoder and the diameter of the length measuring roller. When the steel plate is detected by the photoelectric switch 5, the roller way stops working, the cylinder drives the length measuring roller to press down, and the roller way continues working; when the photoelectric switch detects that no steel plate is arranged below, the cylinder drives the length measuring roller to lift.

The camber of a steel plate produced by rolling is in the range of 50-300mm, so the installation position of the length measuring roller ensures that the distance between the length measuring roller and the edge of the steel plate is 300-500 mm after the length measuring roller rolls to the steel plate, and the production and use requirements can be met. When the steel plate is conveyed to the front of the crop shear, the conveying roller way stops rotating, the crop shear is prepared before shearing, then the roller way runs at a low speed, when the photoelectric switch 5 detects the head of the steel plate, the air cylinder 3 is pressed down, the roller way is manually rotated at a low speed by an operator, and the length measuring roller simultaneously calculates the walking length of the steel plate. At the moment, the operator shears the head of the steel plate, and the length measuring roller encoder is cleared. And (3) continuously conveying the steel plate by an operator, measuring the length of the length measuring roller again, stopping the roller way when the length of the length measuring roller reaches the length required by the first sub-plate, starting shearing again, and resetting the length measuring roller after shearing. And when the last daughter board passes through the tail part of the steel plate detected by the photoelectric switch, the length measuring roller is lifted, the roller way stops running, and an operator shears the tail part of the steel plate. Thus, the head cutting, the tail cutting and the sectional length measuring of one mother board are completed.

Claims (1)

1. A steel plate length measuring device is characterized in that: comprises a control unit and a measuring unit; the control unit comprises an air cylinder, the upper side of the air cylinder is connected with a bottom plate welded on the shearing machine through an air cylinder lug seat, and the lower side of the air cylinder is hinged with the measuring unit; the measuring unit comprises a swing rod, the rear side of the swing rod is hinged to the shearing machine through a swing rod lug seat, the middle part of the swing rod is hinged to the air cylinder, the front side of the swing rod is provided with a length measuring roller matched with the steel plate, and a length measuring roller shaft of the length measuring roller is connected to the front end of the swing rod through a bearing seat; the end part of the encoder shaft and the end part of the length measuring roll shaft are provided with belt pulleys which are matched with each other, and the two belt pulleys are matched and connected through a toothed belt; and a photoelectric switch for detecting the steel plate is also arranged below the shearing machine.

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