阅读说明：本技术 轧辊综合在线检测装置 (Comprehensive online detection device for roller ) 是由 杨铎 陈添定 饶成飞 于 2020-11-11 设计创作，主要内容包括：本发明公开了一种轧辊综合在线检测装置,涉及轧辊检测技术领域,包括：检测PLC；温度测量单元,安装在轧辊喷涂设备的喷涂执行机构末端,与喷涂执行机构同步轴向移动；厚度测量单元,安装在轧辊下方；工作电流/电压测量单元；所述温度测量单元、厚度测量单元、工作电流/电压测量单元分别与检测PLC相连接；能够在线检测喷涂位置前后的轧辊温度和喷头温度,在线检测喷涂厚度,以便进行修补喷涂,结构简单,便于维护。(The invention discloses a comprehensive online detection device for a roller, which relates to the technical field of roller detection and comprises the following components: detecting the PLC; the temperature measuring unit is arranged at the tail end of a spraying execution mechanism of the roller spraying equipment and synchronously and axially moves with the spraying execution mechanism; a thickness measuring unit installed below the roll; an operating current/voltage measuring unit; the temperature measuring unit, the thickness measuring unit and the working current/voltage measuring unit are respectively connected with the detection PLC; the roller temperature and the spray head temperature around the spraying position can be detected on line, the spraying thickness can be detected on line, so that the spraying can be repaired, the structure is simple, and the maintenance is convenient.)

1. The utility model provides a roll synthesizes on-line measuring device which characterized in that includes:

detecting the PLC;

the temperature measuring unit is arranged at the tail end of a spraying execution mechanism of the roller spraying equipment and synchronously and axially moves with the spraying execution mechanism;

a thickness measuring unit installed below the roll;

an operating current/voltage measuring unit;

the temperature measuring unit, the thickness measuring unit and the working current/voltage measuring unit are respectively connected with the detection PLC.

2. The roll comprehensive online detection device according to claim 1, wherein the temperature measurement unit comprises three axially arranged infrared thermometers, and the three infrared thermometers are mounted at the tail end of the spraying execution mechanism through a fixed support; the infrared thermometer is connected with the detection PLC.

3. The roll comprehensive on-line detection device according to claim 2, wherein the three infrared thermometers are respectively used for measuring the temperature of the roll before spraying, the temperature of the roll after spraying and the temperature of the spraying execution mechanism.

4. The comprehensive online detection device for the roller according to claim 1, wherein the thickness measuring unit is installed right below or obliquely below the roller and comprises a horizontal moving table, a laser displacement sensor and an encoder, wherein a rotating shaft is arranged on the horizontal moving table, one end of the rotating shaft is connected with a stepping motor, and the laser displacement sensor is in threaded connection with the rotating shaft; the encoder is arranged on one side of the horizontal motion platform and used for measuring the moving distance of the laser displacement sensor.

5. The comprehensive online detection device for the roller as claimed in claim 4, wherein the laser displacement sensor, the encoder and the stepping motor are respectively connected with a detection PLC.

6. The comprehensive online detection device for the roller according to claim 1, wherein the working current/voltage measurement unit is an industrial personal computer, and the industrial personal computer is directly connected with a spraying PLC.

7. The comprehensive online detection device for the roller according to claim 1, wherein the working current/voltage measurement unit is an industrial personal computer, the industrial personal computer is connected with a detection PLC, and the detection PLC is connected with a spraying PLC.

8. The roll integrated on-line detection device according to claim 1, wherein the working current/voltage measuring unit is a camera, the camera is connected with the detection PLC, and the camera takes pictures of a current dial and a voltage dial and transmits the taken pictures to the detection PLC for identification and statistics.

9. The comprehensive online detection device for the rolls according to claim 3, characterized in that the detection PLC is connected with a spraying temperature alarm lamp, and when the temperature detected by one of the infrared thermometers exceeds a preset value, the detection PLC controls the spraying temperature alarm lamp to light up.

Technical Field

The invention relates to the technical field of roller detection, in particular to a roller comprehensive online detection device capable of detecting roller spraying temperature, spraying thickness and voltage and current of a sprayer.

Background

The rolling mill is a main working component and a tool for generating continuous plastic deformation on metal, and the centrifugal casting of the cold mold of the roller plays an important role in the production quality of the roller and has great influence on the generation of cracks. The roller cold type coating has the effects of adjusting the cooling speed of molten iron to protect a cold type, reducing thermal shock of the molten iron to the cold type, slowing down chilling of molten metal, and avoiding casting defects such as cracks of the cold type and a roller or overhigh hardness of a roller body and the like caused by chilling of the molten metal. Therefore, in the cold-type spraying process of the centrifugal roller, the requirement is that the coating is uniform and consistent, the thickness is the same, neither foaming nor soup hanging can be realized, the detection of the roller coating spraying process is particularly important, and a device capable of detecting and feeding back the temperature, the thickness and the current and the voltage of a spray head in the roller spraying process in real time is needed.

Disclosure of Invention

In order to solve the defects in the prior art, the invention provides the comprehensive online detection device for the roller, which can detect the temperature of the roller and the temperature of a spray head before and after a spraying position on line and detect the spraying thickness on line so as to repair and spray, and has the advantages of simple structure and convenience in maintenance.

The technical scheme adopted by the invention for solving the technical problem is as follows: a roll integrated online detection device comprises:

detecting the PLC;

the temperature measuring unit is arranged at the tail end of a spraying execution mechanism of the roller spraying equipment and synchronously and axially moves with the spraying execution mechanism;

a thickness measuring unit installed below the roll;

an operating current/voltage measuring unit;

the temperature measuring unit, the thickness measuring unit and the working current/voltage measuring unit are respectively connected with the detection PLC.

Further, the temperature measuring unit comprises three infrared thermometers which are axially arranged, and the three infrared thermometers are arranged at the tail end of the spraying execution mechanism through a fixed support; the infrared thermometer is connected with the detection PLC.

Furthermore, the three infrared thermometers are respectively used for measuring the temperature of the roller before spraying, the temperature of the roller after spraying and the temperature of the spraying actuating mechanism.

Furthermore, the thickness measuring unit is arranged right below or obliquely below the roller and comprises a horizontal moving table, a laser displacement sensor and an encoder, wherein a rotating shaft is arranged on the horizontal moving table, one end of the rotating shaft is connected with a stepping motor, and the laser displacement sensor is in threaded connection with the rotating shaft; the encoder is arranged on one side of the horizontal motion platform and used for measuring the moving distance of the laser displacement sensor.

Furthermore, the laser displacement sensor, the encoder and the stepping motor are respectively connected with the detection PLC.

Furthermore, the working current/voltage measuring unit is an industrial personal computer which is directly connected with the spraying PLC.

Furthermore, the working current/voltage measuring unit is an industrial personal computer, the industrial personal computer is connected with the detection PLC, and the detection PLC is connected with the spraying PLC.

Furthermore, the working current/voltage measuring unit is a camera, the camera is connected with the detection PLC, and the camera shoots a current dial plate and a voltage dial plate picture and transmits the shot picture to the detection PLC for identification and statistics.

Furthermore, the detection PLC is connected with a spraying temperature alarm lamp, and when the temperature detected by one of the infrared thermometers exceeds a preset value, the detection PLC controls the spraying temperature alarm lamp to light up.

The invention has the beneficial effects that: 1. detecting the temperature of the roller and the temperature of a spraying actuating mechanism, namely the temperature of a spraying machine head, before and after the spraying position on line, and giving an alarm to remind an operator when the spraying temperature exceeds a set range; 2. detecting the spraying thickness on line, and recording the position with unqualified thickness so as to repair and spray; 3. detecting the current and voltage of the spraying machine head, and counting and storing the current and voltage during working; simple structure and convenient maintenance.

Drawings

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

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Example 1

A roll integrated online detection device comprises: detecting a PLC; the temperature measuring unit is arranged at the tail end of a spraying actuating mechanism of the roller spraying equipment and synchronously and axially moves with the spraying actuating mechanism; the thickness measuring unit is arranged below the roller; a working current/voltage measuring unit; the temperature measuring unit, the thickness measuring unit and the working current/voltage measuring unit are respectively connected with the detection PLC.

A temperature measuring unit:

the device comprises three axially arranged infrared thermometers, wherein the three infrared thermometers are arranged on a spraying actuating mechanism through a fixed support, namely the tail end of a spraying machine head (spray head for short), and move axially in synchronization with the spraying machine head so as to measure the temperature in real time, and the sampling interval is also adjusted according to requirements; the infrared thermometer is connected with the detection PLC. The temperature measuring probes of the three infrared thermometers are respectively used for measuring the temperature of the spraying front roller, the temperature of the spraying rear roller and the temperature of the spraying actuating mechanism, and the distance between the temperature measuring probes can be adjusted according to actual requirements. The detection PLC is connected with a spraying temperature alarm lamp, when the temperature detected by one infrared thermometer exceeds a preset value, the detection PLC controls the spraying temperature alarm lamp to light up to remind an operator, and preferably, the control of a corresponding heating source can also be realized. In this embodiment, the spraying machine heads are 2 groups, correspondingly, the number of the infrared thermometers is 6, and every 3 infrared thermometers are correspondingly arranged at the tail end of one spraying machine head.

Preferably, the reasonable temperature intervals of the detection positions of the three infrared thermometers can be preset in the software of the industrial personal computer, and the three temperature values can be displayed in real time during operation.

A thickness measuring unit:

the device is arranged right below or obliquely below the roller and comprises a horizontal motion platform, a laser displacement sensor and an encoder, wherein a rotating shaft is arranged on the horizontal motion platform, one end of the rotating shaft is connected with a stepping motor, and the laser displacement sensor is in threaded connection with the rotating shaft; the encoder is arranged on one side of the horizontal motion platform and used for measuring the moving distance of the laser displacement sensor. The laser displacement sensor, the encoder and the stepping motor are respectively connected with the detection PLC.

The laser displacement sensor is a non-contact high-precision laser displacement sensor with the detection precision of 1 mm. The laser displacement sensor is the same as the spraying machine head, two groups of laser displacement sensors are arranged to improve the efficiency, and the number of the laser displacement sensors contained in each group can be multiple. Comprehensively considering, the spraying thickness measuring unit can be arranged on the field right below or obliquely below the roller, so that the field space is saved, the normal work of other devices is not influenced, and the structural design that the moving platform avoids when the roller is arranged and transferred can be reduced.

After the roller is installed, the laser displacement sensor is similar to the spraying action, the first scanning is carried out according to a spiral line, the acquisition and the storage of reference data are carried out, and the lead can be properly adjusted or the number of the sensors in the laser displacement sensor group is selected to adjust the detection precision. In order to improve the efficiency, the spraying machine head can delay (the minimum delay time is determined according to the advancing lead of the laser displacement sensor group and the lead of the spraying machine head) for a certain time and then carry out spraying, and the measurement and the spraying are carried out at the same time.

When the last layer is sprayed, in order to save time, the laser displacement sensor can move along with the spraying machine head, whether time delay and the time delay size are needed or not is determined according to the lead of the laser displacement sensor and the spraying machine head, the scanning needs to control the consistency of the sampling point and the first scanning point, after the scanning is finished, the data of two times of the same point are subtracted, and then the spraying thickness of the sampling point is obtained. And recording the failing point thickness values and locations.

Utilize the encoder can measure laser displacement sensor's displacement, because when same roll is measured, the scanning lead is certain, can know the motion number of turns and then carry out position record of scanning to current point roll by stroke and lead. The number of sampling points in one circle can be set as a fixed number, and the position of the sampling point on the roller can be estimated according to the current sampling point.

Operating current/voltage measuring unit:

the working current/voltage measuring unit can be an industrial personal computer, and under the condition that the spraying PLC or other controllers support reading, the industrial personal computer reads the working current/voltage duration through the spraying PLC or other controller interfaces, and counts the current/voltage value of the spraying working time to be stored. The industrial personal computer can be directly connected with the spraying PLC. Or the industrial personal computer is connected with the detection PLC, and the detection PLC is connected with the spraying PLC.

Under the condition that the spraying PLC or other controllers do not support reading, a camera can be used for shooting a current and voltage dial picture according to a certain sampling rate, and corresponding current and voltage values are identified through image processing to carry out statistics. The camera is connected with the detection PLC, shoots the current dial plate, the voltage dial plate photo and conveys the photo of shooing to the detection PLC discernment and statistics.

The PLC and the sensor described above are not limited to a single model, and the model capable of implementing the above-described functions may be selected to implement the technical solution described in the present invention.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.