CN105783827A - Method for on-line steel belt thickness detection by using steel belt damping device - Google Patents

Abstract

The invention discloses a method for on-line steel belt thickness detection by using a steel belt damping device. The method comprises: a steel belt in motion is clamped by using a compressing device and the part from an entrance steel belt segment to a clamped steel belt segment is kept to be in a static state; two pressure sensors that are arranged on an upper pressing block and a lower pressing block detect pressures applied on an upper surface and a lower surface of the clamped steel belt segment, and motion of a drive unit is stopped when the pressure values detected by the two pressure sensors reach a preset value; with a steel belt damping device, the entrance steel belt segment is guaranteed to be in a driving state all the time; and a thickness detection device carries out thickness detection on the clamped steel belt segment. According to the invention, on-line measurement of the steel belt thickness during the production process can be realized; data invoking can be carried out conveniently; and measurement work on the rolled steel belt becomes convenient.

Description

A method for on-line detection of steel strip thickness using a steel strip buffer device

technical field

The invention relates to the field of detection of steel strip thickness, and more specifically relates to a method for online detection of steel strip thickness by using a steel strip buffer device.

Background technique

Steel belt refers to the conveyor belt made of carbon steel. The steel belt can be used as the traction and movement construction of the belt conveyor, and it can also be used for bundling goods. A narrow and long steel plate required for mechanical or mechanical products. Steel strip, also known as strip steel, is generally supplied in coils, and has the advantages of high dimensional accuracy, good surface quality, convenience and processing, and material saving. At the same time, the steel strip can be directly rolled to form the basic structure of the shelf, and then spliced into the entire shelf by bolts. .

In the basic construction of steel strip rolling shelves, the shelf factory generally obtains multiple coils of steel strips directly from the steel strip factory, and the thickness of the rolled steel strips is different. Therefore, the total length of two coils of steel strips of the same size is often due to the difference in thickness. They are also different. Often, the thickness of the steel strip will be greatly reduced if the thickness of the steel strip is increased a little. Since the purchase of the steel strip is usually priced by weighing, if the thickness of the steel strip is higher than the actual need, then the same price can be purchased. However, the length of the steel coil obtained cannot achieve the expected effect, resulting in low cost performance for purchase. Therefore, it is particularly necessary to detect the thickness of the steel strip before production. Steel strips obtained from the manufacturer are generally packaged in bare packages. Due to transportation, loading and unloading, and storage, the outer surface is not suitable as a sample for inspection. Inspection methods can only be added during the production process to inspect the thickness of the steel strip; at the same time The storage limitations of the steel strip itself make it impossible to move at will. Therefore, it is very inconvenient to detect the thickness of the coiled steel strip in mass production.

At the same time, the surface of the coiled steel strip is not completely flat after unrolling, and the steel strip is often in a curved state, and the thickness of different positions of the same coiled steel strip is often not the same, so it is not convenient to directly detect ;The existing detection method is to manually open the rolled steel strip and then use a micrometer to measure one by one. The measurement is not only time-consuming and laborious, but also consumes a lot of manpower and material resources. At the same time, human factors are also a great factor that affects the measurement accuracy of the steel strip. The thickness of the steel strip may not be fully measured, but only based on one's own subjective assumptions to deal with the thickness detection task of the steel strip, which has a great impact on the accuracy of the thickness detection of the steel strip. At the same time, during the whole process of steel strip thickness detection, the thickness detection data of the steel strip has been recorded manually, which is not only easy to make mistakes, but also difficult to carry out data classification and statistics, and the thickness data corresponding to the steel coil cannot be found when needed , has a great impact on production.

When measuring the thickness of the existing steel strip, the steel strip must be kept in a static state, that is, it cannot be measured during the processing of the steel strip. However, the measurement of the thickness of the static steel strip is not very meaningful. In order to measure the thickness of multiple positions of the same steel strip, it is often necessary to manually pull the steel strip apart. The position is also only biased towards the initial section of the coiled steel strip. During the processing of the steel strip, the steel strip is in a state of continuous motion. If the on-line detection of the thickness of the steel strip can be realized during the movement of the steel strip, the thickness status of different positions of the steel strip can be known in time so as to know whether the steel strip meets the requirements at any time. The processing of the next process will bring convenience to production.

Contents of the invention

The object of the present invention is to provide an on-line detection method for steel strip thickness that can be performed during steel strip processing to address the above-mentioned deficiencies in the prior art.

The technical solution of the present invention is achieved in that a method for online detection of steel strip thickness using a steel strip buffer device comprises the following steps:

a. Clamp the moving steel belt through the clamping device, and keep the steel belt from the entrance section of the steel belt to the clamping section in a static state; the clamping device includes an upper pressing block, a lower pressing block, and a driving upper pressing block and a lower pressing block. The driving device for clamping and separating the pressing blocks from each other, the upper pressing block is set above the steel belt, the lower pressing block is set under the steel belt, and the driving device synchronously drives the clamping and separation of the upper pressing block and the lower pressing block;

b. Use two pressure sensors arranged on the upper and lower pressure blocks to detect the pressure on the upper and lower surfaces of the steel strip in the clamping section, and when the pressure values detected by the two pressure sensors reach the preset value Stop the movement of the driving device when the value is reached;

c. Use the steel belt buffer device to ensure that the steel belt at the exit section always maintains the transmission state when step 1 is carried out. The steel belt buffer device is arranged behind the pressing device. When the steel belt buffer device is in the initial state, the steel belt is in a bending state. When the device is working, the steel strip at the entrance end and the steel strip at the clamping section remain in a static state, and the steel strip at the exit section is driven by the equipment in the next process to keep the original state and transmit forward. Large, the steel belt in the bending state is gradually straightened, thereby maintaining the continuous transmission of the steel belt at the exit section;

d. Use the thickness detection device to detect the thickness of the steel strip in the clamping section.

Further, the above-mentioned pressing device and the steel belt buffer device are arranged in the same box-shaped casing, the bottom of the box-shaped casing is provided with walking wheels for easy driving, and the box-shaped casing is provided with a control panel.

Further, the driving device includes a driving motor, a shaft coupling, a ball screw, a pressing slider and a pressing block guide rail, the motor head of the driving motor is connected to the ball screw through a coupling, and the upper pressing block and the lower pressing block are Threaded holes matching with the ball screw are respectively provided, and the upper pressing block and the lower pressing block are respectively fixedly connected with two pressing sliders matched with the pressing block guide rail, and the upper pressing block and the lower pressing block are connected between the ball screw and the lower pressing block. The steel belt is compressed and separated under the joint action of the pressing block guide rail.

Further, the steel belt buffer device includes a bending wheel, a support rod, a fixing seat and a return spring, the bending wheel is arranged at one end of the supporting rod and bends the steel belt, and the fixing seat is provided with a The other end of the supporting rod passes through the sliding hole on the fixing seat and can slide up and down along the sliding hole. The return spring is set on the supporting rod between the bending wheel and the fixing seat. When the steel belt is straightened, the returning spring is After compression, the return spring returns to the initial position after the thickness detection is completed.

Further, the thickness detection device is two distance sensors respectively arranged on the upper pressing block and the lower pressing block, and the two distance sensors are embedded in the pressing surface where the upper pressing block and the lower pressing block are in contact with the steel strip , the probes of the two distance sensors protrude from the two pressing surfaces.

Further, after the thickness detection device detects the thickness data, the data is transmitted to the controller, and the controller transmits the data to the data control center through the wireless transmission device.

Further, the pressing device and the thickness detecting device are powered by a rechargeable battery, and the rechargeable battery is a 36V or 48V DC power supply for electric vehicles.

The beneficial effects of the present invention are:

1. The detection process of the present invention is carried out on-line, that is, in the process of steel strip production and processing, the single point measurement process only needs 2-3 seconds, and the steel strip buffer device provides the buffer amount for the steel strip movement, and it is bent when not detected The wheel presses the steel belt downwards out of a large arc. When the detection is in progress, the steel belt at the entrance section is clamped by the pressing device and cannot move, and the steel belt at the exit section continues to move. The bent steel strip is gradually straightened, and the detection has been completed before it is completely straightened. The support rod continues to bend the steel strip downward through the bending wheel, and the movement of the steel strip at the exit section does not need to be stopped during the whole process, so that the thickness of the steel strip is achieved. continuous online detection.

2. The structure of the present invention is simple and compact, and it is easy to move. The walking wheels set at the bottom of the box shell can push the whole device to move at any time, so as to adapt to the detection of coiled steel strips at various positions, and can move the machine whenever needed. It is convenient and trouble-free to install the device to the designated position to detect the thickness of the steel strip. Only one device can complete the thickness detection of the steel strip in the entire workshop.

3. The present invention is powered by a rechargeable battery, which gets rid of the embarrassing situation that the traditional detection equipment needs to drag the cable to move around during detection, which greatly improves the safety of the device, prevents the threat of electric shock, and facilitates detection carried out.

4. The present invention utilizes the upper pressing block and the lower pressing block to compress the steel strip before measuring, which avoids the inaccurate measurement caused by the curvature of the left and right sides of the steel strip, and improves the accuracy of thickness measurement.

5. In the present invention, pressure sensors for detecting the pressure during compression are arranged inside the upper and lower pressing blocks, which can accurately control the pressure generated by the upper pressing block and the lower pressing block when they are pressurized, and pass the pressure of the two pressure sensors. The detection result can judge whether it has been flattened, and at the same time, it can also prevent the problem that the steel strip thickness measurement result is too small due to excessive pressure on the steel strip, which further improves the accuracy of the steel strip thickness measurement.

6. The present invention can freely set the number of measurements, and through the control module, the measurement structure of each roll of steel strip can be counted and recorded, and can be called out from the database at any time when needed, so as to facilitate the understanding of the thickness of each roll of steel strip. It greatly facilitates the subsequent processing.

7. The present invention is also equipped with a wireless transmission system, which uses Ethernet to transmit data to the data master control center, which facilitates real-time monitoring of the thickness of the steel strip, and facilitates data processing and background applications.

8. The whole measurement process of the present invention is carried out automatically without manual operation, which avoids errors caused by human factors during manual measurement and improves the accuracy of measurement results.

9. The present invention adopts the DC power supply for electric vehicles as the power supply, and its purchase cost is extremely low, which reduces the purchase cost of thickness detection equipment.

Description of drawings

The present invention will be described in further detail below in conjunction with the embodiments in the accompanying drawings, but this does not constitute any limitation to the present invention.

Fig. 1 is a schematic diagram of the equipment structure used in the method for online detection of steel strip thickness by using a steel strip buffer device in the present invention.

Fig. 2 is a structural schematic diagram of the pressing device of the present invention.

In the figure, 1-pressing device, 2-steel belt, 3-upper pressing block, 4-lower pressing block, 5-driving motor, 6-coupling, 7-ball screw, 8-pressing slider, 9-press guide rail, 10-pressure sensor, 11-box type shell, 12-walking wheel, 13-rechargeable battery, 14-pressing wheel, 15-support rod, 16-fixed seat, 17-return spring, 18 -distance sensor.

detailed description

Referring to Fig. 1 and Fig. 2, a method for online detection of steel strip thickness using a steel strip buffer device according to the present invention is characterized in that it includes the following steps: clamping the moving steel strip 2 by a clamping device 1, And keep the steel belt from the entrance section to the clamping section to keep the steel belt in a static state; the clamping device 1 includes an upper pressing block 3, a lower pressing block 4, and a driving device that drives the upper pressing block 3 and the lower pressing block 4 to clamp and separate each other , the upper pressing block 3 is arranged above the steel belt 2, the lower pressing block 4 is arranged under the steel belt 2, and the driving device synchronously drives the clamping and separation of the upper pressing block 3 and the lower pressing block 4; The two pressure sensors 10 on the lower pressing block 4 detect the pressure on the upper and lower surfaces of the steel strip in the clamping section, and stop the driving device when the pressure values detected by the two pressure sensors 10 reach the preset value. Movement: the steel belt buffer device is used to ensure that the steel belt at the exit section is always in a transmission state. The steel belt buffer device is set behind the compression device 1. When the steel belt buffer device is in the initial state, the steel belt 2 is in a bending state, and the compression device 1 is working. At the same time, the steel strip at the entrance end and the steel strip at the clamping section remain in a static state, and the steel strip at the exit section is driven forward by the next process equipment to maintain the original state. During the transmission process, the force generated by the steel strip buffer device is increasing. The steel belt in the bending state is gradually straightened to maintain the continuous transmission of the steel belt in the exit section; the thickness detection device is used to detect the thickness of the steel belt in the clamping section.

The above-mentioned pressing device 1 and the steel belt buffer device are arranged in the same box-type casing 11, and the bottom of the box-type casing 11 is provided with walking wheels 12 for easy driving, and the box-type casing 11 is provided with a control panel.

Described driving device comprises driving motor 5, shaft coupling 6, ball screw 7, pressing slide block 8 and briquetting guide rail 9, and the motor head of driving motor 5 is connected ball screw 7 by shaft coupling 6, and upper briquetting block 3 and the lower pressing block 4 are respectively provided with threaded holes matching with the ball screw 7, and the upper pressing block 3 and the lower pressing block 4 are respectively fixedly connected with two pressing slide blocks 8 matched with the pressing block guide rail 9, The upper briquetting block 3 and the lower briquetting block 4 compress and separate the steel strip under the joint action of the ball screw 7 and the briquetting block guide rail 9 .

Described steel band cushioning device comprises bending wheel 14, support rod 15, fixed seat 16 and back-moving spring 17, and bending wheel 14 is arranged on an end of supporting rod 15 and steel band 2 is bent, and fixed seat 16 is provided with and The sliding hole matched with the supporting rod 15, the other end of the supporting rod 15 passes through the sliding hole on the fixing seat 16 and can slide up and down along the sliding hole. On the bar 15, the return spring 17 is compressed when the steel strip 2 is straightened, and the return spring 17 returns to the initial position after the thickness detection is completed.

The thickness detection device is two distance sensors 18 respectively arranged on the upper pressing block 3 and the lower pressing block 4. On the pressing surface, the probes of the two distance sensors 18 protrude from the two pressing surfaces.

After the thickness detection device detects the thickness data, it transmits the data to the controller, and the controller transmits the data to the data control center through the wireless transmission device.

The pressing device 1 and the thickness detecting device are powered by a rechargeable battery 13, which is a 36V or 48V DC power supply for electric vehicles.

The specific process of the thickness detection of the present invention is as follows: first take a steel strip with a known thickness do, put it into the device for detection, and the retraction amounts of the probes of the two distance sensors are respectively da and da'; When detecting any point on the steel strip, the retraction amounts of the probes of the two distance sensors are dn and dn' respectively, and the thickness of the steel strip is obtained as

d=do+(dn-da)+(dn'-da').

The above examples are preferred implementations of the present invention, and are only used to illustrate the present invention conveniently, and are not intended to limit the present invention in any form. Anyone with ordinary knowledge in the technical field, if they do not depart from the present invention, Within the scope of the technical features, the equivalent embodiments that utilize the technical content disclosed in the present invention to make partial changes or modifications without departing from the technical features of the present invention still belong to the scope of the technical features of the present invention.

Claims (7)

1. a method for utilizing a steel strip buffer device to detect steel strip thickness on-line, is characterized in that, comprises the steps: a. Clamp the moving steel belt (2) through the clamping device (1), and keep the steel belt from the entrance section of the steel belt to the clamping section in a static state; the clamping device (1) includes the upper pressing block (3 ), the lower pressing block (4), the driving device for driving the upper pressing block (3) and the lower pressing block (4) to clamp and separate each other, the upper pressing block (3) is arranged above the steel belt (2), and the lower pressing block (4) It is arranged under the steel belt (2), and the driving device synchronously drives the clamping and separation of the upper pressing block (3) and the lower pressing block (4); b. Utilize two pressure sensors (10) arranged on the upper pressing block (3) and the lower pressing block (4) to detect the pressure on the upper and lower surfaces of the clamping section steel strip, and check the pressure on the two pressure sensors (10) Stop the movement of the driving device when the detected pressure values reach the preset value; c. The steel belt buffer device ensures that the steel belt at the exit section always maintains the transmission state when step 1 is carried out. The steel belt buffer device is arranged behind the pressing device (1). When the steel belt buffer device is in the initial state, the steel belt (2) is in the In the bending state, when the pressing device (1) is working, the steel strip at the entrance end and the steel strip at the clamping section remain in a static state, and the steel strip at the exit section is driven forward by the next process equipment to maintain the original state. The force generated by the buffer device is getting bigger and bigger, and the steel belt in the bent state is gradually straightened, thereby maintaining the continuous transmission of the steel belt at the exit section; d. Use the thickness detection device to detect the thickness of the steel strip in the clamping section. 2. A method for online detection of steel strip thickness using a steel strip buffer device according to claim 1, characterized in that: the above-mentioned pressing device (1) and the steel strip buffer device are arranged in the same box-type housing (11) Inside, the bottom of box-type casing (11) is provided with the traveling wheel (12) that is easy to promote, and box-type casing (11) is provided with control panel. 3. A method for online detection of steel strip thickness using a steel strip buffer device according to claim 1, characterized in that: said driving device includes a driving motor (5), a shaft coupling (6), a ball screw ( 7), press the slide block (8) and the press block guide rail (9), the motor head of the driving motor (5) is connected to the ball screw (7) through the coupling (6), the upper press block (3) and the lower press block The block (4) is respectively provided with threaded holes matched with the ball screw (7), and the upper pressing block (3) and the lower pressing block (4) are respectively fixedly connected with two fittings matched with the pressing block guide rail (9). Compress the slide block (8), the upper briquetting block (3) and the lower briquetting block (4) compress and separate the steel strip under the joint action of the ball screw (7) and the briquetting block guide rail (9). 4. A method for online detection of steel strip thickness using a steel strip buffer device according to claim 1, characterized in that: said steel strip buffer device comprises a bending wheel (14), a support rod (15), a fixing seat (16) and back-moving spring (17), the bending wheel (14) is arranged on an end of the support bar (15) and the steel strip (2) is bent, and the fixed seat (16) is provided with the corresponding support bar (15) Cooperating slide holes, the other end of the support rod (15) passes through the slide holes on the holder (16) and can slide up and down along the slide holes, and the back-moving spring (17) is sleeved on the pressure bending wheel (14) and the holder ( 16) on the support bar (15), the return spring (17) is compressed when the steel strip (2) is straightened, and the return spring (17) returns to the initial position after the thickness detection is completed. 5. A method for online detection of steel strip thickness using a steel strip buffer device according to claim 1, characterized in that: the thickness detection device is respectively arranged on the upper pressing block (3) and the lower pressing block (4) The two distance sensors (18) on the top, the two distance sensors (18) are embedded in the pressing surface where the upper pressing block (3) and the lower pressing block (4) are in contact with the steel strip (2), the two distances The probes of the sensor (18) stretch out from the two pressing surfaces. 6. A method for online detection of steel strip thickness using a steel strip buffer device according to claim 1, characterized in that: after the thickness detection device detects the thickness data, the data is transmitted to the controller, and the controller transmits the data through the wireless transmission device This data is transmitted to the data control center. 7. A method for online detection of steel strip thickness using a steel strip buffer device according to claim 1, characterized in that: said compaction device (1) and thickness detection device are powered by a rechargeable battery (13), charged The battery (13) is a DC power supply for electric vehicles of 36V or 48V.