Product height and weight on-line automatic detection device based on photoelectric conversion technology

Abstract

The utility model provides a product height and weight on-line automatic detection device based on a photoelectric conversion technology, and the device is characterized in that a position photoelectric sensor, a weight sensor and a height photoelectric sensor are respectively connected with a position signal converter, a height signal converter and a weight signal converter; the position signal converter is connected with the weight sensor and the height photoelectric sensor by outputting 4-20 mA signals, the height signal converter and the weight signal converter are connected with the RS-485 / USB converter by outputting 4-20 mA signals, and the height and weight data of a product are collected in real time through the high-precision photoelectric sensor. And in combination with a 4-20mA signal and an RS-485 / USB conversion module, efficient transmission and centralized processing of data are realized. The system supports the self-adaptive adjustment of the speed of the production line, has the functions of automatic recording, out-of-tolerance alarm and the like, effectively improves the detection efficiency and the product yield, reduces the manual intervention cost, and provides an innovative solution for industrial automatic detection.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of automatic detection of product automatic assembly line, and particularly relates to a product height and weight online automatic detection device based on photoelectric conversion technology. BACKGROUND

[0002] In the industrial production process, real-time detection of key parameters such as product height and weight is an important link to ensure product quality. Traditional detection methods mainly rely on manual operation or basic sensor systems, which have the following problems:

[0003] Efficiency and cost problems: manual detection is low in efficiency and high in labor intensity, and the labor cost is rising year by year, which is difficult to meet the high efficiency demand of modern production line.

[0004] Insufficient detection accuracy: some automatic systems are limited by sensor accuracy or signal transmission method, with large measurement error, and cannot realize 100% full inspection, resulting in defective products flowing into subsequent links.

[0005] Low system integration: in the existing technology, height and weight detection often needs independent equipment, and data is transmitted through scattered interfaces (such as analog signals), which has poor compatibility and is difficult to realize unified management.

[0006] Lack of real-time and flexibility: traditional systems are difficult to adapt to changes in different production line speeds, and have high data transmission delay, which cannot realize real-time alarm, affecting problem tracing and production adjustment.

[0007] In recent years, photoelectric conversion technology has been gradually applied to the field of industrial detection due to its non-contact and high-precision characteristics, and RS-485 bus communication technology has become a common solution for industrial data transmission due to its strong anti-interference ability and long transmission distance. However, the existing technology has not fully combined the advantages of the two, and has not constructed a highly integrated, stable and reliable product parameter online detection system. CONTENT OF THE INVENTION

[0008] In order to solve the above problems, the product height weight online automatic detection device based on photoelectric conversion technology is provided, the inner side of the roller is provided with an automatic detection device, the automatic detection device comprises a position photoelectric sensor, a weight sensor and a height photoelectric sensor, the position photoelectric sensor, the weight sensor and the height photoelectric sensor are respectively connected with a position signal converter, a height signal converter and a weight signal converter, the position signal converter is connected with the weight sensor and the height photoelectric sensor through an output 4-20mA signal, the height signal converter and the weight signal converter are connected with an RS-485 / USB converter through an output 4-20mA signal, the position photoelectric sensor, the weight sensor, the height photoelectric sensor, the position signal converter, the height signal converter and the weight signal converter are connected with an input power supply through an input power supply, the RS-485 / USB converter is connected with an industrial computer through a cable data transmission, the product height and weight data are collected in real time through a high-precision photoelectric sensor, the 4-20mA signal and the RS-485 / USB conversion module are combined, and efficient data transmission and centralized processing are realized. The system supports adaptive adjustment of the production line speed, has the functions of automatic recording and alarm for exceeding the difference, effectively improves the detection efficiency and product yield, reduces the labor intervention cost, and provides an innovative solution for industrial automatic detection.

[0009] The shape of the roller is a transverse rectangular conveying channel, the side surface of the roller is vertically protruding and provided with a position photoelectric sensor, the rear end of the roller is provided with a height photoelectric sensor in a longitudinal and horizontal upper position, and the rear end bottom surface of the roller is provided with a weight sensor; the position photoelectric sensor is externally arranged on the side surface of the roller and faces the inner side of the roller; the height photoelectric sensor is arranged above the weight sensor in a nail suspension mode; and the weight sensor is embedded with the upper surface of the roller.

[0010] The signal output ends of the position photoelectric sensor, the height photoelectric sensor and the weight sensor are connected with a signal converter through a cable, the position photoelectric sensor is connected with a 24-volt switching power supply through a cable, the power supply positive and negative terminals of the height photoelectric sensor and the weight sensor are connected with the signal output end of the position signal converter, the position signal converter, the height signal converter and the weight signal converter are all relay converters, the position signal converter, the height signal converter and the weight signal converter are connected with an input power supply through a 24-volt switching power supply, the height signal converter and the weight signal converter are connected with an RS-485 / USB converter through an output 4-20mA signal, and the RS-485 / USB converter transmits data to an industrial computer through an RS-485 bus after RS-485 / USB conversion.

[0011] Advantages:

[0012] An online automatic detection device based on photoelectric conversion technology and RS-485 bus communication is provided, high-precision photoelectric sensors are used to collect product height and weight data in real time, 4-20mA signals and RS-485 / USB conversion modules are combined to realize efficient data transmission and centralized processing. The system supports adaptive adjustment of production line speed, and has functions of automatic recording, alarm for over-difference, etc., effectively improves detection efficiency and product yield, reduces manual intervention cost, and provides an innovative solution for industrial automatic detection. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a top view of a product height and weight online automatic detection device based on photoelectric conversion technology;

[0014] Figure 2 is a front view of a product height and weight online automatic detection device based on photoelectric conversion technology;

[0015] Figure 3 is a circuit diagram of a product height and weight online automatic detection device based on photoelectric conversion technology;

[0016] In the figure; 1, roller, 2, workpiece, 3, position photoelectric sensor, 4, height photoelectric sensor, 5, weight sensor, 6, input power supply, 7, 24-volt switching power supply, 8, RS-485 / USB converter, 9, industrial computer, 10, position signal converter, 11, height signal converter, 12, weight signal converter. DETAILED DESCRIPTION

[0017] In order to deepen the understanding of the utility model, the utility model will be further described in combination with examples and drawings below, and the examples are only used to explain the utility model and do not constitute limitation on the protection scope of the utility model.

[0018] Roller 1, workpiece 2, position photoelectric sensor 3, height photoelectric sensor 4, weight sensor 5, input power supply 6, 24-volt switching power supply 7, RS-485 / USB converter 8, industrial computer 9, position signal converter 10, height signal converter 11, weight signal converter 12.

[0019] As shown in Figure 1 , 2 , 3;

[0020] The utility model provides a product height weight on -line automatic detection device based on photoelectric conversion technology, the inner side of roller 1 is equipped with automatic detection device, the automatic detection device includes position photoelectric sensor 3, weight sensor 5 and height photoelectric sensor 4, position photoelectric sensor 3, weight sensor 5 and height photoelectric sensor 4 all respectively output with position signal converter 10, height signal converter 11 and weight signal converter 12 are connected, position signal converter 10 is connected with weight sensor 5 and height photoelectric sensor 4 through the output 4-20mA signal, height signal converter 11 and weight signal converter 12 all are connected with RS-485 / USB converter 8 through the output 4-20mA signal, position photoelectric sensor 3, weight sensor 5, height photoelectric sensor 4, position signal converter 10, height signal converter 11 and weight signal converter 12 all are connected with input power supply 6 power supply, RS-485 / USB converter 8 is transmitted to industrial computer 9 through cable data, the shape of roller 1 is the horizontal rectangular conveying way, the side of roller 1 is vertically protruding and is equipped with position photoelectric sensor 3, the rear end of roller 1 is equipped with height photoelectric sensor 4 and is longitudinally horizontal, the rear end bottom surface of roller 1 is equipped with weight sensor 5, position photoelectric sensor 3 is towards the inside of roller 1 and is arranged at the outside of the side of roller 1, height photoelectric sensor 4 is arranged above weight sensor 5 by the nail suspension, weight sensor 5 is embedded with the upper surface of roller 1 and is mutually flush, position signal converter 10, height signal converter 11 and weight signal converter 12 are all relay converters, the signal output end of position photoelectric sensor 3, height photoelectric sensor 4 and weight sensor 5 is connected with signal converter through cable, position photoelectric sensor 3 is connected with 24V switching power supply 7 through cable, the positive and negative electrode end of height photoelectric sensor 4 and weight sensor 5 is connected with the signal output end of position signal converter 10, position signal converter 10, height signal converter 11 and weight signal converter 12 are all connected with input power supply 6 power supply through 24V switching power supply 7, height signal converter 11 and weight signal converter 12 are connected with RS-485 / USB converter 8 through the output 4-20mA signal respectively, RS-485 / USB converter 8 is transmitted to industrial computer 9 through RS-485 bus after RS-485 / USB conversion.

[0021] Implementation example

[0022] After position photoelectric sensor 3 detects workpiece 2 on roller 1, 4-20mA signal is output to position signal converter 10, the always-on point of position signal converter 10 is closed (the closing time delay can be manually set to adapt to the flow speed of different production lines), and 24V power supply is output to high-precision height photoelectric sensor 4 and weight sensor 5.

[0023] After the height photoelectric sensor 4 detects the workpiece 2, height data is transmitted to the 4-20mA / RS-485 data converter through a 4-20mA signal, and the data is transmitted to the industrial computer 9 through the RS-485 bus and the RS-485 / USB converter 8.

[0024] After the weight sensor 5 detects the workpiece 2, weight data is transmitted to the 4-20mA / RS-485 data converter through a 4-20mA signal, and the data is transmitted to the industrial computer 9 through the RS-485 bus and the RS-485 / USB converter 8.

[0025] The industrial computer 9 automatically records the received height and weight data of the workpiece 2 through the host computer software, and automatically alarms if the set early warning value is exceeded.

[0026] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A product height weight online automatic detection device based on photoelectric conversion technology, the inner side of the roller is provided with an automatic detection device, characterized in that, The automatic detection device comprises a position photoelectric sensor, a weight sensor and a height photoelectric sensor, the position photoelectric sensor, the weight sensor and the height photoelectric sensor are connected with a position signal converter, a height signal converter and a weight signal converter respectively, the position signal converter is connected with the weight sensor and the height photoelectric sensor through 4-20mA signal output, the height signal converter and the weight signal converter are connected with an RS-485 / USB converter through 4-20mA signal output, the position photoelectric sensor, the weight sensor, the height photoelectric sensor, the position signal converter, the height signal converter and the weight signal converter are connected with an input power supply through power supply, and the RS-485 / USB converter is connected with an industrial computer through cable data transmission.

2. The product height and weight online automatic detection device based on photoelectric conversion technology according to claim 1, characterized in that, The roller is a transverse rectangular conveying channel, the position photoelectric sensor is arranged on the side of the roller in a vertical protruding mode, the height photoelectric sensor is arranged on the upper end of the roller in a longitudinal horizontal mode, and the weight sensor is arranged on the bottom of the rear end of the roller.

3. The product height and weight online automatic detection device based on photoelectric conversion technology according to claim 1, characterized in that, The position photoelectric sensor is arranged on the outside of the side of the roller and faces the inside of the roller, the height photoelectric sensor is arranged above the weight sensor in a nail suspension mode, and the weight sensor is embedded in the upper surface of the roller and is flush with the upper surface of the roller.

4. The product height and weight online automatic detection device based on photoelectric conversion technology according to claim 1, characterized in that, The signal output ends of the position photoelectric sensor, the height photoelectric sensor and the weight sensor are connected with a signal converter through cables, the position photoelectric sensor is connected with a 24-volt switching power supply through a cable, and the power supply positive and negative ends of the height photoelectric sensor and the weight sensor are connected with the signal output end of the position signal converter.

5. The product height and weight online automatic detection device based on photoelectric conversion technology according to claim 1, characterized in that, The position signal converter, the height signal converter and the weight signal converter are all relay converters, the position signal converter, the height signal converter and the weight signal converter are connected with an input power supply through a 24-volt switching power supply, and the height signal converter and the weight signal converter are connected with an RS-485 / USB converter through 4-20mA signal output.

6. The product height and weight online automatic detection device based on photoelectric conversion technology according to claim 1, characterized in that, The RS-485 / USB converter transmits data to an industrial computer through RS-485 bus and RS-485 / USB conversion.

Images