A steel pipe curvature measurement and marking device

Abstract

The present invention relates to a device for measuring and marking the curvature of a steel pipe, the device comprising an ink cartridge (1), a rope wheel (2), a rope belt (4), a power motor (8), a support shaft (10) and a support seat (12), wherein the rope belt (4) is wound around the rope wheel (2), the power motor (8) drives the rope wheel (2) to rotate, and drives the rope belt (4) to rotate, the rope belt (4) passes through the ink cartridge (1) during the rotation process, the ink cartridge (1) is mounted on the support shaft (10), the support shaft (10) is mounted on the support seat (12), the steel pipe (5) to be tested rotates on a drying bed rotating support roller (6), when the curvature of the steel pipe (5) exceeds a set value, the ink on the rope belt (4) marks the curved part of the steel pipe. Compared with the prior art, the present invention can measure and mark the curvature of the steel pipe automatically, is used to screen out steel pipes with curvature exceeding the standard, and mark the steel pipes with production codes, which is simple, convenient and highly accurate.

Description

Technical Field

[0001] The invention relates to steel pipe curvature measurement, in particular to a steel pipe curvature measurement marking device. Background Art

[0002] After the steel pipe comes out of the heat treatment process, it is generally cooled by a step-by-step rotary drying bed. When the steel pipe moves to the final position of the drying bed, the steel pipe reaches room temperature. Most steel pipes have local bending problems after heat treatment. In order to ensure the normal production of subsequent processes, it is generally necessary to test the straightness of the steel pipe and straighten it. Therefore, before straightening, the curvature of the steel pipe needs to be measured and marked to facilitate subsequent straightening.

[0003] Most of the existing steel pipe curvature measuring devices are manual tools, and generally can only perform qualitative detection but not identification. Summary of the invention

[0004] The purpose of the present invention is to provide a steel pipe curvature measurement and marking device in order to overcome the defects of the above-mentioned prior art, which can automatically measure and mark the curvature of steel pipes, screen out steel pipes with excessive curvature, and mark the steel pipes with production codes.

[0005] The objective of the present invention can be achieved through the following technical solutions: a device for measuring and marking the curvature of a steel pipe, comprising an ink cartridge, a pulley, a rope belt, a power motor, a bracket shaft and a bracket seat, the rope belt being wound around the pulley, the power motor driving the pulley to rotate, driving the rope belt to rotate, the rope belt passing through the ink cartridge during rotation, the ink cartridge being mounted on the bracket shaft, the bracket shaft being mounted on the bracket seat, the steel pipe to be tested rotates on the rotating support roller of the drying bed, when the curvature of the steel pipe exceeds the set value, the ink on the rope belt marks the curved part of the steel pipe.

[0006] The upper and lower parts of the ink cartridge are also equipped with laser transmission devices. When the curvature of the steel pipe exceeds a set value, the laser transmission device transmits a signal to the control console.

[0007] One side of the ink cartridge is also provided with a label pasting device, through which the production label is pasted on the steel pipe.

[0008] The label sticking device has the function of reading the pasted label information and transmitting it to the control console.

[0009] The rope wheel comprises an upper wheel and a lower wheel, both of which are located in the ink cartridge, and the rotating shafts of the upper wheel and the lower wheel are both installed on the ink cartridge body.

[0010] The ink cartridge is in the shape of a box body, one side of which is open, and the open side is located at one side of the steel pipe, so that the rope in the ink cartridge is close to the steel pipe.

[0011] The ink box is filled with ink, and the rope is adhered to the ink during the rotation process.

[0012] The ink cartridge is also connected to a cylinder, and the cylinder drives the ink cartridge to rotate around the support shaft.

[0013] The device also includes a control console, which is connected to the power motor, the laser transmission device, the marking sticking device and the cylinder.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. After the existing steel pipe heat treatment process, a step-by-step rotary drying bed is used for cooling. When the steel pipe moves to the final position of the drying bed, the steel pipe reaches room temperature. The device is configured at the final position, and the ink is drawn on the protruding position of the steel pipe through the rope with colored ink of the device to indicate the bending direction of the steel pipe.

[0016] 2. This device is equipped with a laser signal transmission device. When the steel pipe that exceeds the bending standard rotates, the laser signal switch will be interrupted, stimulating the console to record information on the steel pipe that exceeds the tolerance.

[0017] 3. The measuring device is equipped with a marking device, which will stick a mark on the surface of each steel pipe.

[0018] 4. The device has a simple structure, is easy to use, has a high degree of automation and accurate recognition. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The device of the present invention measures the working state of the steel pipe;

[0020] Figure 2 A schematic diagram of the ink cartridge swinging to a non-working position after the device detects the marking;

[0021] Figure 3 This is a schematic diagram of the device in the horizontal direction perpendicular to the axis of the steel pipe.

[0022] Markings in the figure: 1-ink cartridge, 2-pulley, 3-laser transmission device, 4-rope, 5-steel pipe, 6-drying bed rotating support wheel, 7-marking pasting device, 8-power motor, 9-ink, 10-bracket shaft, 11-cylinder, 12-bracket seat, 13-center console. DETAILED DESCRIPTION

[0023] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] The device of the present invention is installed at the rear end of the existing steel pipe heat treatment process, located at the end of the drying bed, and the drying bed is a commonly used steel pipe drying bed in the field. The power motor, laser transmission device, marking pasting device, cylinder, control console and other components used in the device of the present invention are all commercially available products, and they are installed and applied in the present invention.

[0025] Example

[0026] like Figure 1-3 As shown, a steel pipe curvature measurement and marking device includes an ink cartridge 1, a pulley 2, a laser transmission device 3, a rope 4, a marking and pasting device 7, a power motor 8, ink 9, a bracket shaft 10, a cylinder 11 and a bracket seat 12.

[0027] The ink cartridge 1 is in the shape of a box, with two sides in semicircular or incomplete shapes as in the present embodiment. The semicircular bottom is filled with ink 9, and the ink 9 will not spill out during the rotation of the ink cartridge 1. The middle is rectangular, with one side open, and the open side is located on the side of the steel pipe 5, so that the rope 4 in the ink cartridge is close to the steel pipe 5, and the gap between the rope 4 and the steel pipe 5 is the error value of the curvature of the steel pipe, that is, the set value of the curvature.

[0028] The rope pulley 2 includes an upper wheel and a lower wheel, both of which are located in the ink cartridge 1, and the rotating shafts of the upper wheel and the lower wheel are installed on the body of the ink cartridge 1. The lower wheel of the rope pulley 2 is a driving wheel connected to the power motor 8, and the upper wheel is a driven wheel. The power motor 8 drives the rope pulley 2 to rotate, and the rope belt 4 rotates continuously under the rotation of the rope pulley 2. When the rope belt 4 rotates, the ink 9 in the ink cartridge 1 adheres to the rope belt 4.

[0029] The steel pipe 5 to be inspected rotates on the rotating support roller 6 of the drying bed. While the steel pipe 5 rotates, it passes from the side of the rope 4 in a straight line, so that each part of the steel pipe 5 will pass through the inspection position. When the curvature of the steel pipe 5 exceeds a certain limit value, it will contact with the rope 4. The ink on the rope 4 will be drawn on the curved part of the steel pipe to form a curvature mark.

[0030] Laser signal devices 3 are arranged on the upper and lower parts of the side of the ink cartridge 1. When the curvature exceeds the tolerance, the laser signal device 3 transmits a signal to the control console 13 to record the information of the steel pipe exceeding the tolerance.

[0031] A label output device 7 is disposed on one side of the ink cartridge 1 . The label output device 7 affixes a production label on each steel pipe 5 . In addition, the label output device 7 has a function of reading the affixed label information and transmitting it to the control console 13 .

[0032] The ink cartridge 1 is also connected to a cylinder 11. After the detection is completed, the cylinder 11 can drive the ink cartridge 1 to rotate around the bracket shaft 10, and swing the ink cartridge to the non-working position diagram, which is convenient for the steel pipe to be removed.

[0033] The control console 13 is respectively connected to the power motor 8, the laser transmission device 3, the marking and pasting device 7 and the cylinder 11, and can receive the information transmitted by the laser transmission device 3 and the marking and pasting device 7, automatically drive the start and stop of the power motor 8 and the cylinder 11, and realize automatic measurement and marking.

[0034] The rope 4 marks the bending part of the steel pipe 5, and the marking output device 7 puts a label on the rail 5. At the same time, the laser signal device 3 transmits the signal to the control console 13 to record the information of the steel pipe that exceeds the tolerance. In this way, the curvature of each steel pipe 5 can be recorded in the control console 13, and it corresponds one by one with the label on the steel pipe 5, which can play an accurate identification function in the subsequent straightening process.

Claims

1. A steel pipe curvature measurement and marking device, characterized in that: The device comprises an ink cartridge (1), a rope wheel (2), a rope belt (4), a power motor (8), a support shaft (10) and a support seat (12); the rope belt (4) is wound around the rope wheel (2); the power motor (8) drives the rope wheel (2) to rotate, thereby driving the rope belt (4) to rotate; the rope belt (4) passes through the ink cartridge (1) during rotation; the ink cartridge (1) is mounted on the support shaft (10); the support shaft (10) is mounted on the support seat (12); the steel pipe (5) to be tested rotates on a drying bed rotating support roller (6); when the bending degree of the steel pipe (5) exceeds a set value, the ink on the rope belt (4) marks the bending part of the steel pipe; The ink cartridge (1) is also provided with a label pasting device (7) on one side, and a production label is pasted on the steel pipe (5) through the label pasting device (7); The label sticking device (7) has the function of reading the stuck label information and transmitting it to the control console (13); The ink cartridge (1) is in the shape of a box, one side of which is open, and the open side is located on the side of the steel pipe (5), so that the rope (4) in the ink cartridge is close to the steel pipe (5); the gap between the rope (4) and the steel pipe (5) is the error value of the curvature of the steel pipe, that is, the set value of the curvature.

2. A steel pipe curvature measurement and marking device according to claim 1, characterized in that: The ink cartridge (1) is also provided with a laser transmission device (3) at the upper and lower parts. When the curvature of the steel pipe (5) exceeds a set value, the laser transmission device (3) transmits a signal to the control console (13).

3. A steel pipe curvature measurement and marking device according to claim 1, characterized in that: The rope wheel (2) comprises an upper wheel and a lower wheel, both of which are located in the ink cartridge (1), and the rotating shafts of the upper wheel and the lower wheel are both mounted on the ink cartridge (1) body.

4. A steel pipe curvature measurement and marking device according to claim 1, characterized in that: The ink cartridge (1) contains ink (9), and the rope (4) adheres to the ink (9) during the rotation process.

5. A steel pipe curvature measurement and marking device according to claim 1, characterized in that: The ink cartridge (1) is also connected to a cylinder (11), and the cylinder (11) drives the ink cartridge (1) to rotate around the support shaft (10).

6. A steel pipe curvature measurement and marking device according to claim 1, characterized in that: The device also includes a control console (13), wherein the control console (13) is connected to the power motor (8), the laser transmission device (3), the marking sticking device (7) and the cylinder (11).

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