A full-automatic electric energy meter liquid crystal screen display detection device

Abstract

The utility model is suitable for electric energy meter detection technical field provides a kind of full-automatic electric energy meter LCD screen display detection device, including main PLC system, synchronous belt conveying line, camera mechanism, elimination mechanism and suction jacking mechanism, the camera mechanism detection range covers the LCD screen area and the certificate pasting area of electric energy meter.The utility model passes through industrial camera synchronous acquisition electric energy meter LCD screen area and the image of certificate pasting area, realizes the synchronous detection of both;With the high-efficiency, high-precision judgment ability of industrial camera, shorten single meter detection time, effectively improve the detection efficiency in unit time.The device is composed of mechanical structure, the cost is relatively lower and easy to mass production, can reduce equipment production cost, can replace manual work through full-automatic online operation mode, save manpower investment, further reduce overall production cost, finally achieve the core goal of improving unit time production efficiency, realizing full-automatic operation and reducing cost.

Description

Technical Field

[0001] This utility model belongs to the field of electricity meter testing technology, and in particular relates to a fully automatic electricity meter LCD screen display testing device. Background Technology

[0002] With the increasing demand in the electricity meter market, the quality inspection process during production is facing increasingly severe challenges. Among them, checking for foreign objects on the electricity meter's LCD screen and verifying the compliance of the certificate of conformity is an essential final inspection step before the electricity meter leaves the factory. Therefore, the efficiency and accuracy of this step are crucial.

[0003] At present, this key testing process mainly relies on manual labor. The operation steps are roughly as follows: the operator takes the electricity meter, carefully checks the display of the LCD screen to check for foreign objects; then flips the electricity meter to check whether the certificate of conformity is in the correct position; finally, the operator makes a judgment on whether it is qualified or not based on the observation results.

[0004] However, this manual inspection method has obvious drawbacks. On the one hand, manual operation is extremely inefficient and cannot keep up with the pace of mass production of electricity meters, becoming a bottleneck restricting production efficiency. On the other hand, manual judgment is easily affected by factors such as fatigue and lack of concentration, resulting in a high error rate and failing to guarantee the accuracy of the test, making it difficult to meet the market's stringent requirements for the quality of electricity meters. Therefore, this utility model proposes a fully automatic electricity meter LCD display testing device. Utility Model Content

[0005] The purpose of this invention is to provide a fully automatic electricity meter LCD display detection device, which aims to solve the problems mentioned in the background art.

[0006] This utility model embodiment is implemented as follows: a fully automatic electricity meter LCD screen detection device includes a main PLC system, a synchronous belt conveyor line, a camera mechanism, a rejection mechanism, and a suction and lifting mechanism. The main PLC system is used to coordinate and control the actions of each mechanism, and to determine whether the energy meter is qualified based on the images collected by the camera mechanism. The synchronous belt conveyor line is used to transport the energy meters to be inspected. The energy meters pass through the inspection station and the rejection station in sequence along the conveying direction. The suction and lifting mechanism is located directly below the synchronous belt conveyor line of the testing station and is used to lift and fix the energy meter that arrives at the testing station. The camera mechanism is located directly above the inspection station, and its inspection range covers the LCD screen area and certificate of conformity area of ​​the energy meter. It is used to acquire images of the energy meter after it is fixed by the lifting mechanism. The rejection mechanism is located on the side of the synchronous belt conveyor at the rejection station and is used to reject electricity meters that are determined to be unqualified from the synchronous belt conveyor.

[0007] Furthermore, the camera mechanism includes an industrial camera, a light source, and a mounting and adjustment assembly; the industrial camera is mounted on a gantry beam spanning the synchronous belt conveyor line via the mounting and adjustment assembly, with the industrial camera lens vertically aligned with the inspection station; the light source is arranged around the industrial camera lens to provide illumination for the inspection area; the mounting and adjustment assembly connects the industrial camera and the light source to adjust the height and angle of the industrial camera and the illumination angle of the light source.

[0008] Furthermore, the light source is coaxial light, ring light, or strip light.

[0009] Furthermore, the rejection mechanism includes a rejection cylinder, a push plate, an inclined stainless steel chute, a cylinder solenoid valve, and a photoelectric sensor; the mounting base of the rejection cylinder is fixed to the side of the synchronous belt conveyor frame, and the extension and retraction direction of the piston rod of the rejection cylinder is perpendicular to the running direction of the synchronous belt conveyor; the push plate is connected to the front end of the piston rod; the inclined stainless steel chute is located at the end of the push plate in the pushing direction; the cylinder solenoid valve is electrically connected to the main PLC system and is used to control the action of the rejection cylinder; the photoelectric sensor is located at the rejection station and is used to detect whether the energy meter has arrived.

[0010] Furthermore, the suction lifting mechanism includes a lifting cylinder, a vacuum suction cup assembly, and a vacuum generator; the lifting cylinder is vertically installed below the synchronous belt conveyor line, with the piston rod passing upward through an opening in the synchronous belt conveyor line's platform panel; the vacuum suction cup assembly is installed on the top of the piston rod of the lifting cylinder via a polyurethane plate, and the vacuum suction cup assembly includes four silicone vacuum suction cups, the layout of which matches the bottom contour of the energy meter; the vacuum generator is connected to the vacuum suction cup assembly via an air pipe to provide a vacuum for the vacuum suction cup assembly, and the vacuum generator is electrically connected to the main PLC system via a solenoid valve.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This invention achieves simultaneous detection of both the LCD screen area and the certificate of conformity area of ​​an energy meter by simultaneously acquiring images using an industrial camera. Leveraging the high efficiency and precision of the industrial camera, it shortens the detection time for a single meter, effectively improving detection efficiency per unit time. The device employs a mechanical structure, resulting in relatively low cost and ease of mass production. This reduces equipment production costs and allows for fully automated online operation, replacing manual labor and saving manpower, further reducing overall production expenses. Ultimately, it achieves the core objectives of increasing production efficiency per unit time, realizing fully automated operation, and reducing costs. Attached Figure Description

[0012] Figure 1This is the front view of the fully automatic electricity meter LCD display detection device.

[0013] Figure 2 This is a partial 3D view of the detection device for the LCD screen of a fully automatic energy meter.

[0014] Figure 3 This is a three-dimensional view of the lifting mechanism in the LCD display detection device for fully automatic energy meters.

[0015] Figure 4 This is a 3D view of the camera mechanism in the LCD display detection device for fully automatic energy meters.

[0016] Figure 5 This is an enlarged view of the rejection mechanism in area A of the fully automatic electricity meter LCD display detection device.

[0017] In the diagram: 1. Synchronous belt conveyor line; 2. Camera mechanism; 21. Industrial camera; 22. Light source; 23. Mounting and adjustment assembly; 3. Rejection mechanism; 31. Rejection cylinder; 32. Push plate; 4. Suction and lifting mechanism; 41. Lifting cylinder; 42. Vacuum suction cup assembly. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0019] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0020] like Figure 1-5 As shown, an embodiment of the present invention provides a fully automatic electricity meter LCD screen detection device, including a main PLC system, a synchronous belt conveyor line 1, a camera mechanism 2, a rejection mechanism 3, and a suction and lifting mechanism 4.

[0021] The main PLC system is used to coordinate and control the actions of each mechanism, and to determine whether the energy meter is qualified based on the images collected by the camera mechanism 2.

[0022] The synchronous belt conveyor line 1 serves as the foundation and main line of the device, responsible for continuously and orderly transporting the energy meters to be tested to each workstation. The energy meters are arranged on the synchronous belt conveyor line at a set interval.

[0023] Working principle: The synchronous belt conveyor 1 drives the energy meters to be inspected placed on it to pass through the inspection station and rejection station in sequence according to the set speed and rhythm, so as to realize the continuous transport of energy meters.

[0024] The camera mechanism 2 is located directly above the inspection station and is used to acquire images of the LCD screen area and the certificate affixing area of ​​the electricity meter. It includes: An industrial camera 21 (high resolution) is mounted on a gantry beam spanning the synchronous belt conveyor line 1 via an adjustment assembly 23 (including a height adjustment slider and a tilt angle adjustment). The center of the lens of the industrial camera 21 is vertically aligned downwards with the energy meter, which has been fixed and lifted by the lifting mechanism 4 at the center of the inspection station. Its field of view covers the energy meter's LCD screen area and the certificate of conformity area (usually located on the side or back of the energy meter body).

[0025] Light source 22, fixed to the front of the lens of industrial camera 21 via a connecting ring, is arranged around industrial camera 21 (such as coaxial light, ring light, or strip light at a specific angle) to provide uniform, stable, and shadow-free illumination to the area being inspected, ensuring image clarity, especially for highlighting foreign object shadows or edges / text on certificates of conformity. The type of light source 22 (such as white light, specific wavelength light) and angle can be optimized according to actual inspection needs. The brightness of light source 22 can be adjusted via a controller.

[0026] The installation adjustment component 23 connects the industrial camera 21 and the light source 22, allowing precise adjustment of the height and angle of the industrial camera 21, as well as the position and illumination angle of the light source 22, to adapt to different models of electricity meters or optimize imaging effects. It includes an aluminum alloy profile bracket to ensure the stability of the industrial camera 21 and the light source 22 and resist vibration.

[0027] Working principle: After the energy meter is fixed and lifted by the lifting mechanism 4, the center of the lens of the industrial camera 21 is vertically downward aligned with the center of the inspection station, and the light source 22 provides uniform, stable and shadow-free illumination to highlight the shadow of foreign objects or the edges / text of the certificate of conformity.

[0028] The rejection mechanism 3 is located downstream of the inspection station and on the side of the synchronous belt conveyor 1, and is used to reject unqualified energy meters from the synchronous belt conveyor 1. It includes: The rejection cylinder 31 is mounted on a base fixed to the side of the synchronous belt conveyor 1 frame, with its piston rod extending and retracting perpendicular to the running direction of the synchronous belt conveyor 1. This rejection cylinder 31 is a compact, short-stroke cylinder (e.g., 16mm diameter, 30mm stroke). The PLC precisely controls the timing of the rejection cylinder 31's operation based on detection results and signals from photoelectric sensors (at the rejection station).

[0029] Push plate 32 is connected to the front end of the piston rod of the rejection cylinder 31. The initial position of push plate 32 is about 5mm away from the edge of the energy meter on the conveyor line. It is made of lightweight aluminum alloy plate and its size is slightly larger than the width of the energy meter.

[0030] An inclined stainless steel chute is located adjacent to the side of the synchronous belt conveyor 1, at the end of the push plate 32 in the pushing direction.

[0031] The cylinder solenoid valve is electrically connected to the main PLC system and is used to control the action of the rejection cylinder 31.

[0032] The photoelectric sensor, located at the rejection station, is used to detect in real time whether the electricity meter has arrived at the rejection station.

[0033] Working principle: The PLC precisely controls the timing of the rejection cylinder 31 based on the detection results and the photoelectric sensor signal at the rejection station. When a defective energy meter needs to be rejected, the cylinder solenoid valve is energized, the piston rod of the rejection cylinder 31 extends, and the push plate 32 pushes the energy meter laterally out of the synchronous belt conveyor line 1, causing it to fall into the inclined stainless steel chute. Subsequently, the cylinder solenoid valve is de-energized, and the rejection cylinder 31 resets to await the next instruction.

[0034] The suction and lifting mechanism 4 is located directly below the synchronous belt conveyor 1 at the testing station. It is used to fix and lift the energy meter, ensuring a stable position without shaking during testing. It includes: The lifting cylinder 41 (double guide rod cylinder, stroke 50mm, cylinder diameter 32mm) is vertically installed below the frame of the synchronous belt conveyor line 1, and its piston rod passes upward through the opening in the panel of the synchronous belt conveyor line 1.

[0035] The vacuum suction cup assembly 42 includes four silicone vacuum suction cups, which are mounted on the top of the piston rod of the lifting cylinder 41 via a polyurethane plate. The suction cup layout matches the bottom contour of the electricity meter. The vacuum generator is connected to the suction cup assembly via an air pipe.

[0036] The vacuum generator (controlled by a solenoid valve and electrically connected to the main PLC system via the solenoid valve) is used to provide vacuum for the vacuum suction cup assembly 42.

[0037] Working principle: When the energy meter is conveyed to the position directly above the testing station, this mechanism activates. The lifting cylinder 41 moves vertically upwards, lifting the energy meter off the conveyor surface of the synchronous belt conveyor 1. Simultaneously, the solenoid valve opens, and the vacuum suction cup assembly 42 activates, adsorbing and securing the bottom of the energy meter to ensure precise and stable positioning without shaking during testing. After testing, the lifting cylinder 41 descends, the solenoid valve closes, and the vacuum suction cup assembly 42 releases the energy meter, allowing it to return to the conveyor line for continued transport.

[0038] The working principle of this utility model is as follows: The working process of this fully automatic electricity meter LCD display detection device is as follows: 1. After the device is started, the energy meter to be tested is transported to the testing station via synchronous belt conveyor line 1.

[0039] 2. When the energy meter reaches directly above the testing station, the suction lifting mechanism 4 starts working. The lifting cylinder 41 extends upward, lifting the energy meter away from the conveying surface of the synchronous belt conveyor 1. At the same time, the vacuum generator starts, and the vacuum suction cup group 42 adsorbs and fixes the bottom of the energy meter to prevent shaking during testing.

[0040] 3. After the electricity meter is fixed, the camera mechanism 2 starts detection. Under the illumination of the surrounding light source 22, the industrial camera 21 captures images of the LCD screen area and the certificate of conformity area of ​​the electricity meter vertically downward.

[0041] 4. The main PLC system analyzes and judges the acquired image information: If the electricity meter is qualified, the lifting cylinder 41 of the lifting mechanism 4 descends, the vacuum suction cup group 42 releases the electricity meter, and the electricity meter continues to flow downstream with the synchronous belt conveyor line 1. If the electricity meter is defective, when the electricity meter is transported to the rejection station, the rejection mechanism 3 receives an instruction. The piston rod of the rejection cylinder 31 extends, driving the push plate 32 to push the electricity meter laterally out of the synchronous belt conveyor line 1, so that it falls into the inclined stainless steel chute to complete the rejection. Then the rejection cylinder 31 resets.

[0042] 5. Each unit performs the above actions in a cycle to achieve fully automatic continuous detection and sorting of electricity meters.

[0043] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these should also be considered within the scope of protection of this utility model. These will not affect the implementation effect of this utility model or the practicality of the patent.

Claims

1. A fully automatic electricity meter LCD display detection device, characterized in that, Includes the main PLC system, synchronous belt conveyor line, camera mechanism, rejection mechanism and suction lifting mechanism; The main PLC system is used to coordinate and control the actions of each mechanism, and to determine whether the energy meter is qualified based on the images collected by the camera mechanism. The synchronous belt conveyor line is used to transport the energy meters to be inspected. The energy meters pass through the inspection station and the rejection station in sequence along the conveying direction. The suction and lifting mechanism is located directly below the synchronous belt conveyor line of the testing station and is used to lift and fix the energy meter that arrives at the testing station. The camera mechanism is located directly above the inspection station, and its inspection range covers the LCD screen area and certificate of conformity area of ​​the energy meter. It is used to acquire images of the energy meter after it is fixed by the lifting mechanism. The rejection mechanism is located on the side of the synchronous belt conveyor at the rejection station and is used to reject electricity meters that are determined to be unqualified after inspection from the synchronous belt conveyor.

2. The fully automatic electricity meter LCD display detection device according to claim 1, characterized in that, The camera mechanism includes an industrial camera, a light source, and a mounting and adjustment assembly. The industrial camera is mounted on a gantry beam spanning the synchronous belt conveyor via the mounting and adjustment assembly, with the camera lens vertically aligned with the inspection station. The light source is arranged around the camera lens to provide illumination for the inspection area. The mounting and adjustment assembly connects the industrial camera and the light source and is used to adjust the height and angle of the industrial camera and the illumination angle of the light source.

3. The fully automatic electricity meter LCD display detection device according to claim 2, characterized in that, The light source is coaxial light, ring light, or strip light.

4. The fully automatic electricity meter LCD display detection device according to claim 1, characterized in that, The rejection mechanism includes a rejection cylinder, a push plate, an inclined stainless steel chute, a cylinder solenoid valve, and a photoelectric sensor. The mounting base of the rejection cylinder is fixed to the side of the synchronous belt conveyor frame, and the extension and retraction direction of the piston rod of the rejection cylinder is perpendicular to the running direction of the synchronous belt conveyor. The push plate is connected to the front end of the piston rod. The inclined stainless steel chute is located at the end of the push plate in the pushing direction. The cylinder solenoid valve is electrically connected to the main PLC system and is used to control the action of the rejection cylinder. The photoelectric sensor is located at the rejection station and is used to detect whether the energy meter has arrived.

5. The fully automatic electricity meter LCD display detection device according to claim 1, characterized in that, The suction and lifting mechanism includes a lifting cylinder, a vacuum suction cup assembly, and a vacuum generator. The lifting cylinder is vertically installed below the synchronous belt conveyor, with its piston rod passing upward through an opening in the synchronous belt conveyor platform. The vacuum suction cup assembly is mounted on the top of the piston rod of the lifting cylinder via a polyurethane plate. The vacuum suction cup assembly includes four silicone vacuum suction cups, the layout of which matches the bottom contour of the energy meter. The vacuum generator is connected to the vacuum suction cup assembly via an air pipe to provide a vacuum for the vacuum suction cup assembly, and the vacuum generator is electrically connected to the main PLC system via a solenoid valve.

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