Automatic unpacking system for electric energy measuring instrument

Abstract

The utility model belongs to the technical field of unpacking production systems for electric energy meters / automatic electric energy meters, and particularly provides an automatic unpacking system for electric energy measuring instruments. The utility model aims to solve the problems that the working efficiency is low and the error rate is high due to manual unpacking and warehousing of the existing electric energy measuring instrument. Through the feeding unit, the conveying unit, the carton cutting unit, the meter taking unit, the appearance detection unit, the meter boxing unit, the radio frequency binding unit and the control system in the automatic unpacking system, the functions of tray feeding, carton feeding, carton opening, empty carton detection, automatic boxing, three-code checking, vertical warehouse butt joint and the like can be automatically achieved; the unpacking efficiency is effectively improved, and meanwhile, the situations that the measuring instruments are damaged, placed mistakenly, bound information is mistakenly and the like due to manual ultra-thin warehousing are reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of electricity meter / automatic electricity meter unpacking and production system, and specifically provides an automatic unpacking system for electricity metering instruments. Background Technology

[0002] The fairness of electricity meter verification directly affects the fundamental interests of both electricity suppliers and consumers. Therefore, the state mandates the verification of electricity meters and other electricity metering instruments through laws and regulations. In automated warehousing and verification processes, electricity meters are transported in standardized turnover boxes. Therefore, before verification, the outer packaging boxes of the electricity meters need to be removed, and then they need to be placed in the turnover boxes as required. Information binding and box / pile assembly are then performed before they are stored in automated warehouses for verification. Currently, the unpacking is done manually, which consumes a significant amount of manpower annually. Furthermore, manual operation carries the risk of damage, misplacement, and incorrect binding of electricity metering instruments, thus reducing the efficiency of the verification process.

[0003] Therefore, there is a need for an automatic unpacking system for electricity metering devices to solve the above problems. Utility Model Content

[0004] One objective of this invention is to solve the problem of low efficiency and high error rate in the existing manual unpacking and warehousing of electrical energy metering instruments.

[0005] To achieve the above objectives, this utility model provides an automatic unpacking system for electricity metering instruments, including a feeding unit, a conveying unit, a carton cutting unit, a meter retrieval unit, an appearance inspection unit, a meter packing unit, an RFID binding unit, and a control system.

[0006] The feeding unit cooperates with the inlet of the feeding conveyor line to place the cardboard box carrying the electrical energy metering device onto the feeding conveyor line.

[0007] The conveying unit includes a feeding conveyor line, a waste box conveyor line, a turnover box conveyor line, a meter conveyor line, and a box-packing and warehousing conveyor line; the outlet section of the feeding conveyor line is connected to one end of the waste box conveyor line, and the other end of the waste box conveyor line is connected to the inlet section of the meter conveyor line; the meter conveyor line and its inlet section are located above the outlet section of the feeding conveyor line, and the outlet section of the meter conveyor line is located above the inlet section of the box-packing and warehousing conveyor line; the outlet section of the turnover box conveyor line cooperates with the inlet section of the box-packing and warehousing conveyor line.

[0008] The carton cutting unit is located on the feeding conveyor line and is used to cut the cartons on the feeding conveyor line and transfer the cartons and electricity metering devices to the waste carton conveyor line and the meter conveyor line, respectively. The meter retrieval unit is located on the feeding conveyor line and is used to transfer the cut cartons to the waste carton conveyor line and transfer the electricity metering devices to the meter conveyor line. The appearance inspection unit is located on the meter conveyor line and is used to inspect the appearance integrity and foreign object condition of the electricity metering devices, bind the inspection results of each electricity metering device with the information of the electricity metering device, and then transfer the electricity metering devices to the packing and warehousing conveyor line. The turnover box conveyor line is used to transport turnover boxes to the packing and warehousing conveyor line. The meter packing unit is located on the packing and warehousing conveyor line and is used to transfer the electricity metering devices into the turnover boxes. The radio frequency binding unit is located on the packing and warehousing conveyor line and is used to scan and bind the information of the electricity metering devices on the turnover boxes and upload the data to the control system.

[0009] The control system is connected to the feeding unit, the conveying unit, the carton cutting unit, the meter retrieval unit, the appearance inspection unit, the meter packing unit, and the radio frequency binding unit, respectively, to control each unit to perform unpacking operations.

[0010] Furthermore, the waste box conveying line includes a main waste box conveying line and a waste box cover conveying line. The inlet section of the main waste box conveying line is connected to the outlet section of the feeding conveying line, and the outlet section of the waste box cover conveying line is connected to the middle section of the main waste box conveying line. The carton cutting unit includes a cover-opening mechanism, which is used to transfer the carton cover of the cut carton to the waste box cover conveying line. The feeding conveying line transfers the cardboard box base carrying the electricity meter to the meter taking unit.

[0011] Furthermore, the lifting mechanism includes a suction cup assembly and a drive arm. The suction cup assembly is used to adsorb the top cover of the carton. One end of the drive arm is connected to one end of the cutting frame, and the other end of the drive arm is connected to the suction cup assembly. The drive arm is used to drive the suction cup assembly to rotate, so as to transfer the top cover of the carton.

[0012] Furthermore, the carton cutting unit of the automatic unpacking system also includes: a cutting frame, on which the lid-opening mechanism is mounted, the cutting frame including a cutting milling cutter for cutting the carton; and a clamping mechanism, on both sides of the feeding conveyor line, for clamping the carton containing the electrical energy metering device.

[0013] Furthermore, the cutting frame includes a laser positioning module and a driving mechanism. The laser positioning detection module is used to scan the surface of the cardboard box and determine the cutting position on the cardboard box; the driving mechanism is used to drive the cutting milling cutter to move to the cutting position.

[0014] Furthermore, the meter retrieval unit includes a meter retrieval robotic arm disposed on one side of the feeding conveyor line. The meter retrieval robotic arm is used to grab the energy metering device inside the cut carton, transfer the meter to the meter conveyor line, and transfer the remaining carton to the waste carton main conveyor line.

[0015] Furthermore, the feeding unit includes a feeding robotic arm, which is used to grab and move the entire box of electricity metering devices to the feeding conveyor line; the meter retrieval unit includes a meter retrieval robotic arm, which is used to transfer the electricity metering devices in the cut cardboard box to the meter retrieval conveyor line; and / or, the meter packing unit includes a packing robotic arm, which is used to transfer the electricity metering devices into a turnover box.

[0016] Furthermore, the appearance inspection unit of the automatic unpacking system includes: an appearance inspection frame located above one side of the meter conveyor line; a positioning mechanism, one end of which is connected to the appearance inspection frame, used to determine that the energy meter is placed in a designated position; a camera detection / scanning module, including a scanning module and a camera module, the scanning module being used to scan the information on the energy meter; the camera module being used to detect the appearance and foreign objects of the energy meter at the designated position, and to bind the detection results with the information of the energy meter; and a driving arm, one end of which is connected to the appearance inspection frame, and the other end of which is rotatably connected to the camera detection / scanning module, the driving arm being used to drive the camera detection / scanning module to move.

[0017] Furthermore, the automatic unpacking system also includes a depalletizing unit, a cleaning unit, and a detection unit, all installed on the turnover box conveyor line and connected to the control system. The depalletizing unit includes a depalletizer used to depalletize entire stacks of turnover boxes on the turnover box conveyor line. The cleaning unit is used to clean the surface of the turnover boxes after depalletizing on the turnover box conveyor line. The detection unit is used to scan the information on the cleaned turnover boxes.

[0018] Furthermore, the turnover box cleaning unit also includes an air gun and a vacuum cleaner installed on the turnover box conveyor line, with the vacuum cleaner located below the air gun. The air gun is used to blow out dust from the surface of the turnover box, and the vacuum cleaner is used to suck up the dust blown off by the air gun.

[0019] Furthermore, the turnover box detection unit includes an information scanning mechanism, which includes an RFID reader and a three-dimensional scanning measuring instrument. The RFID reader is used to identify the radio frequency tags on the cleaned turnover box; the three-dimensional scanning measuring instrument is used to detect the shape of the cleaned turnover box.

[0020] Furthermore, the radio frequency binding unit is used to bind the meter information after packing with the information of the turnover box, and upload the data to the control system; the radio frequency binding unit includes: a first barcode scanner, used to identify the barcode on the turnover box after packing, then bind its information with the meter information and upload it to the control system; a first RFID reader / writer, used to identify and read the RFID electronic tag on the turnover box, then bind its information with the meter information and upload it to the control system; a second barcode scanner, used to identify the barcode on the meter inside the turnover box, then bind its information with the turnover box information and upload it to the control system; and a second RFID reader / writer, used to read the RFID electronic tag on the meter inside the turnover box, then bind its information with the turnover box information and upload it to the control system.

[0021] Furthermore, the automatic unpacking system also includes an inbound palletizing unit, which includes a palletizer. The palletizer is located at the exit section of the packing and inbound conveyor line and is used to palletize the turnover boxes after radio frequency binding.

[0022] Furthermore, the automatic unpacking system also includes an AGV docking unit, including an AGV docking vehicle, which is used to transport a whole pallet of the energy metering device in the unloading area to the buffer area or to transport a whole pallet of the energy metering device in the buffer area to the loading unit.

[0023] Based on the foregoing description, those skilled in the art will understand that in the aforementioned technical solution of this utility model, the automatic unpacking system utilizes a feeding unit, conveying unit, carton cutting unit, meter retrieval unit, appearance inspection unit, meter packing unit, RFID binding unit, and control system to achieve functions such as pallet feeding, carton feeding, carton opening, empty carton detection, automatic packing, three-code verification, and automated warehouse docking. Furthermore, this utility model can handle the unpacking and warehousing process for various metering instruments, including single-phase and three-phase energy meters, data acquisition terminals (Type I concentrators, Type III dedicated transformer data acquisition terminals, and dedicated energy controller transformers), demonstrating strong compatibility.

[0024] Furthermore, the waste box conveying line of this utility model includes a main waste box conveying line and a waste box cover conveying line. The inlet section of the main waste box conveying line is matched with the outlet section of the feeding conveying line, and the outlet section of the waste box cover conveying line is connected with the middle section of the main waste box conveying line. The design of two parallel units (dual-line unpacking mode) is adopted to effectively improve the unpacking efficiency. Attached Figure Description

[0025] To more clearly illustrate the technical solution of this utility model, some embodiments of this utility model will be described below with reference to the accompanying drawings. Those skilled in the art should understand that the same reference numerals may indicate the same or similar components or parts in different drawings; the drawings of this utility model are not necessarily drawn to scale. In the drawings:

[0026] Figure 1 This is a flowchart illustrating the automatic unpacking system in some embodiments of this utility model;

[0027] Figure 2 yes Figure 1 A schematic diagram of the structure of the automatic unpacking system.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100. Automatic package unpacking system;

[0030] 1. Feeding unit; 2. Carton cutting unit; 3. Feeding conveyor line; 4. Meter retrieval unit; 5. Meter conveyor line; 6. Appearance inspection unit; 7. Meter packing unit; 8. Turnover box conveyor line; 9. Turnover box cleaning unit; 10. Turnover box inspection unit; 11. Turnover box depalletizing unit; 12. RFID bonding unit; 13. Warehousing and palletizing unit; 14. Packing and warehousing conveyor line; 15. Waste box processing unit; 16. Waste box main conveyor line; 17. Waste box cover conveyor line. Detailed Implementation

[0031] Those skilled in the art should understand that the embodiments described below are merely some embodiments of the present invention, and not all embodiments of the present invention. These embodiments are intended to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by those skilled in the art without creative effort should still fall within the scope of protection of the present invention.

[0032] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "top," "bottom," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can also refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] The following reference Figure 1 and Figure 2 This document will provide a detailed description of the automatic unpacking system in some embodiments of the present invention. Figure 1 This is a flowchart illustrating the automatic unpacking system in some embodiments of this utility model; Figure 2 yes Figure 1 A schematic diagram of the structure of the automatic unpacking system.

[0035] It should be noted beforehand that, for ease of description and to enable those skilled in the art to quickly understand the technical solution of this utility model, the following description only focuses on technical features that are strongly related (directly or indirectly related) to the technical problem and / or concept to be solved by this utility model. Technical features that are less related to the technical problem and / or concept to be solved by this utility model will not be described in detail. Since such less related technical features are common knowledge in the field, the omission of such less related features will not result in insufficient disclosure of this utility model.

[0036] like Figure 1 and Figure 2As shown in some embodiments of this utility model, an automated unpacking system for electricity metering instruments is provided, including a feeding unit 1, a conveying unit, a carton cutting unit 2, a meter retrieval unit 4, an appearance inspection unit 6, a meter packing unit 7, an RFID binding unit 12, and a control system. The control system is connected to the feeding unit 1, the conveying unit, the carton cutting unit 2, the meter retrieval unit 4, the appearance inspection unit 6, the meter packing unit 7, and the RFID binding unit 12 to control each unit to perform unpacking operations, thereby realizing functions such as pallet feeding, carton feeding, carton opening, empty carton detection, automatic packing, three-code verification, and vertical warehouse docking. Furthermore, this utility model can automatically unpack and store various metering instruments, including single-phase and three-phase electricity meters, data acquisition terminals (Type I concentrators, Type III dedicated transformer data acquisition terminals, and energy controller dedicated transformers), etc., exhibiting strong compatibility.

[0037] The conveying unit includes a feeding conveyor line 3, a waste box conveyor line, a turnover box conveyor line 8, a meter conveyor line 5, and a box-packing and warehousing conveyor line 14. The outlet section of the feeding conveyor line 3 is connected to one end of the waste box conveyor line, and the other end of the waste box conveyor line is connected to the inlet section of the meter conveyor line 5. The meter conveyor line 5 and its inlet section are located above the outlet section of the feeding conveyor line 3, and the outlet section of the meter conveyor line 5 is located above the inlet section of the box-packing and warehousing conveyor line 14. The outlet section of the turnover box conveyor line 8 is coordinated with the inlet section of the box-packing and warehousing conveyor line 14.

[0038] All conveyor lines in the conveying unit are configured as roller conveyor lines.

[0039] The feeding unit 1, carton cutting unit 2, and meter retrieval unit 4 are all located on the feeding conveyor line 3. The energy metering device is transferred to the feeding unit 1 via an AGV connection unit. After the feeding unit 1 detects a full carton of energy metering devices, the control system controls the feeding robotic arm to grab and move the entire carton of energy metering devices onto the feeding conveyor line 3. Then, the carton cutting unit 2 cuts the carton and transports the energy metering device to the meter retrieval unit 4 via the feeding conveyor line 3. The meter retrieval unit 4 retrieves the energy metering device, and the cut carton is then transferred to the waste carton conveyor line, and finally, the energy metering device is transferred to the meter conveyor line 5.

[0040] Specifically, the loading unit 1 cooperates with the inlet of the loading conveyor line 3 to place the cardboard boxes carrying the electricity metering devices onto the loading conveyor line 3. The loading unit 1 includes a loading robotic arm, which is used to grab and move the entire box of electricity metering devices onto the loading conveyor line 3.

[0041] The unpacking system also includes an AGV docking unit, which consists of AGV docking vehicles. These vehicles primarily facilitate the semi-automatic transfer of energy metering devices from trucks to the unpacking line. Using AGV forklifts, they are used to move pallets between the unloading area, buffer area, and loading unit 1. Specifically, the AGV docking vehicles transport entire pallets of energy metering devices from the unloading area to the buffer area, or transport entire pallets of energy metering devices awaiting loading from the buffer area to loading unit 1. The entire stack of metering devices transported to loading unit 1 by the AGVs is then unstacked by the loading robotic arm and picked up onto the loading conveyor line 3.

[0042] Specifically, the loading rate of the loading robot arm should be less than or equal to 60 seconds per box, and the loading capacity of the loading robot arm should be greater than 1.5 times the load weight.

[0043] The carton cutting unit 2 is used to cut the cardboard boxes on the feeding conveyor line 3 and transfer the cardboard boxes and electricity metering devices to the waste box conveyor line and meter conveyor line 5, respectively. The carton cutting unit 2 includes a cutting frame and a clamping mechanism. The cutting frame is used to cut the cardboard boxes. Clamping mechanisms are provided on both sides of the feeding conveyor line 3. The clamping mechanisms are used to clamp the cardboard boxes containing electricity metering devices to prevent displacement during the cutting process and to transfer the cut cardboard boxes and meters to the meter conveyor line 5.

[0044] The clamping mechanism is compatible with clamping functions for cartons of different sizes, including single-phase energy meters, three-phase energy meters, and data acquisition terminals.

[0045] The cutting frame includes a laser positioning module, a drive mechanism, and a cutting milling cutter. The laser positioning and detection module scans the surface of the cardboard box and determines the cutting position. The drive mechanism moves the cutting milling cutter to the cutting position. The cutting milling cutter cuts the cardboard box. The control system controls the host computer to select the cutting point, using a positioning laser head to determine the area to be cut, after which the cutting milling cutter cuts the cardboard box. After cutting, the cardboard box top cover is conveyed to the waste box top cover conveyor line 17, while the cardboard box base and the electricity metering device are conveyed to the meter retrieval unit 4.

[0046] In other embodiments, the waste box conveyor line includes a main waste box conveyor line 16 and a waste box cover conveyor line 17. The inlet section of the main waste box conveyor line is connected to the outlet section of the feeding conveyor line 3, and the outlet section of the waste box cover conveyor line 17 is connected to the middle section of the main waste box conveyor line 16. This embodiment adopts a two-set parallel unit design (dual-line unpacking mode) to improve unpacking efficiency.

[0047] It should be noted that this utility model only operates one type of electricity metering device or meter box at any given time. After the batch of work is completed, the last remaining turnover box is sent back to the intelligent warehousing system.

[0048] In this embodiment, the carton cutting unit 2 also includes a lid-opening mechanism, which is connected to the control system and is installed on the cutting frame. After the carton is cut on the cutting frame, the control system controls the lid-opening mechanism to transfer the top cover of the cut carton to the waste carton top cover conveyor line 17. At the same time, the control system controls the feeding conveyor line 3 to transport the remaining carton and the electrical metering device inside the carton to the meter retrieval unit 4 for meter retrieval.

[0049] The lid-opening mechanism also includes a suction cup assembly and a drive arm. The suction cup assembly is used to pick up the carton lid. One end of the drive arm is connected to one end of the cutting frame, and the other end of the drive arm is connected to the suction cup assembly. The drive arm is used to drive the suction cup assembly to rotate, thereby transferring the carton lid.

[0050] The meter retrieval unit 4 is located on the feeding conveyor line 3. Its main function is to retrieve and place the electricity metering devices from the cut cartons. Specifically, it transfers the electricity metering devices from the cut cartons. The unit includes a robotic arm positioned on one side of the feeding conveyor line 3. This robotic arm can automatically and precisely position the devices, handling tasks such as grabbing, transferring, and placing them. If the device's placement or the cartons themselves are abnormal, preventing proper feeding, it alerts the operator to intervene. Specifically, it controls the robotic arm to grab the electricity metering devices from the cut cartons and transfer them to the meter conveyor line 5. The remaining cartons are then transferred to the waste carton main conveyor line 16.

[0051] In this embodiment, the meter-retrieving robotic arm can pick up three different types of electricity metering devices and place them on the meter conveyor line 5, realizing a fully automated unpacking and warehousing process for metering devices such as single-phase and three-phase electricity meters and data acquisition terminals (Type I concentrators / Type III dedicated transformer data acquisition terminals / energy controller dedicated transformers). The unpacking and warehousing capacity per shift (8 hours) reaches more than 15,000 single-phase meters or 5,000 three-phase meters.

[0052] In some specific embodiments, the meter-retrieving robotic arm can grab three single-phase energy meters at a time, and the meter-retrieving robotic arm can grab two three-phase energy meters and a data acquisition terminal at a time.

[0053] Among them, the table-retrieving robotic arm has a transfer capacity greater than 1.5 times the load weight.

[0054] In some embodiments, the automatic unpacking system 100 further includes a waste box processing unit 15. The waste box processing unit 15 includes a gantry frame and a flattening device. The gantry frame is located at the exit section of the main waste box conveyor line 16. The flattening device is installed inside the gantry frame and has left and right limiting components. These components limit the bottom of the cut cartons to prevent them from swaying left and right during the flattening process. The flattening device generally includes an electric cylinder, a crossbeam, and compression rollers. The electric cylinder is connected to the crossbeam, and the crossbeam is connected to the compression rollers. The electric cylinder drives the crossbeam to move. The operator can adjust the height of the compression rollers according to the different heights or thicknesses of the cartons. The compression rollers are used to flatten the cartons.

[0055] In this embodiment, the automatic unpacking system 100 also includes a waste box stacking unit. The waste box stacking unit includes a first stacking cart, which is located at the outlet section of the waste box compression conveyor line. The waste box stacking unit is connected to the control system. The control system can control the first stacking cart to transfer the compressed cardboard boxes to the waste box stacking area and stack the waste boxes in the waste box stacking area.

[0056] The appearance inspection unit 6 is located on the meter conveyor line 5. It is used to inspect the appearance integrity and foreign objects of the electricity metering instruments, and bind the inspection results of each electricity metering instrument with the information of the electricity metering instrument, and then transfer the electricity metering instruments to the packing and warehousing conveyor line 14.

[0057] The appearance inspection unit 6 includes an appearance inspection frame, a positioning mechanism, a camera inspection / scanning module, and a drive arm. The appearance inspection frame is located above one side of the meter conveyor line 5. One end of the positioning mechanism is connected to the appearance inspection frame, and the positioning mechanism is used to determine the placement of the energy meter in a designated position. The camera inspection / scanning module includes a scanning module and a camera module. The scanning module is used to scan the information on the energy meter, and the camera inspection module is used to acquire images of the energy meter, inspect the appearance and detect foreign objects of the energy meter at a designated location, and bind the inspection results with the information of the energy meter. Specifically, the camera inspection module can acquire images of the energy meter and compare the captured images of the entire and / or partial energy meter with a standard image to detect the appearance and foreign objects of the energy meter, and then bind the inspection results with the barcode information (energy meter number). The drive arm is used to drive the camera inspection / scanning module to a preset position so that the camera inspection module can inspect the appearance of the energy meter.

[0058] Specifically, in this embodiment, the camera parameters in the camera detection module are as follows: 5 million effective pixels, signal-to-noise ratio of 38.5dB, dynamic range >67.74dB, exposure time of 0.0582-905.1 milliseconds, maximum resolution of 2592*1944, support for GIGE VISION and GenICam standards, support for third-party video interfaces such as DirectShow and Twain, support for 32-bit and 64-bit Windows operating systems (XP, WIN7, WIN8) as well as Linux and embedded Linux systems, support for 8-bit, 24-bit, and 32-bit image data format output, support for JPG, PNG, BMP, and raw RAW format photography and lossless AVI video compression format recording; transmission distance up to 100 meters.

[0059] In other embodiments, the automatic unpacking system 100 further includes a depalletizing unit 11, a cleaning unit 9, and a detection unit 10 disposed on the turnover box conveyor line 8. The depalletizing unit 11 is connected to the control system and includes a depalletizer. The controller can control the depalletizer to depalletize the entire stack of turnover boxes on the turnover box conveyor line 8. The cleaning unit 9 is connected to the control system, which can control the cleaning unit 9 to clean the surface of the turnover boxes after depalletizing on the turnover box conveyor line 8. The detection unit 10 is connected to the control system, which can control the detection unit 10 to scan the information on the cleaned turnover boxes and bind it to the detection results of the turnover boxes.

[0060] The turnover box cleaning unit 9 also includes an air gun and a vacuum cleaner mounted on the turnover box conveyor line 8, with the vacuum cleaner positioned below the air gun. The air gun is used to blow dust off the surface of the turnover boxes, and the vacuum cleaner is used to remove the dust blown off by the air gun. In this embodiment, the turnover box cleaning unit 9 uses top and bottom air intake and side air return to clean the dust on the surface of the turnover boxes while avoiding the problem of dust blowing off contaminating other equipment.

[0061] The turnover box detection unit 10 includes an information scanning mechanism, which comprises an RFID reader for identifying the radio frequency tags on the turnover boxes after destacking and a three-dimensional scanning measuring instrument for detecting the shape of the turnover boxes. The RFID reader reads the RFID tag information on the turnover boxes, and the three-dimensional scanning measuring instrument scans, images, and measures the turnover boxes to determine whether they can continue to be used. The determination method is as follows: after the three-dimensional scanning measuring instrument scans and images the turnover box, it is determined whether the difference between the size of the turnover box and the preset size is within the allowable size range. If the difference exceeds the allowable size range, the turnover box cannot continue to be used and is treated as a waste box. Electricity metering devices are not installed on it, thus identifying defective products with deformation exceeding the set value. Unqualified turnover boxes are processed at the abnormal flow handling station. The processing method can be to transfer the turnover box to the waste box conveyor line at the exit of the turnover box conveyor line 8 via a connecting vehicle or to the waste box conveyor line directly through manual intervention. If the difference between the size of the turnover box and the preset size is within the allowable range, the turnover box can continue to be used. The turnover boxes that pass the inspection are transferred to the turnover box cleaning unit 9. The working efficiency of the automatic unpacking system 100 in screening qualified turnover boxes is greater than or equal to 3 boxes / min.

[0062] The main function of meter packing unit 7 is to use a packing robotic arm to remove qualified electrical energy meters from the conveyor belt and place them in turnover boxes. Electrical energy meters that fail the appearance inspection are picked up and placed in the exception handling position. Specifically, meter packing unit 7 is located on the packing and warehousing conveyor line 14. Meter packing unit 7 carries turnover boxes and is used to transfer electrical energy meters into the turnover boxes. Meter packing unit 7 includes a packing robotic arm used to transfer electrical energy meters into the turnover boxes.

[0063] In this embodiment, the packing robot arm can grab 3 single-phase meters or 1 three-phase meter (or data acquisition terminal) at a time. Each single-phase meter turnover box can store 12 single-phase meters, and the packing robot arm completes the grabbing in 4 working cycles. Each three-phase meter (or data acquisition terminal) turnover box can hold 4 three-phase energy meters or data acquisition terminals, and the packing robot arm completes the grabbing in 4 working cycles. After the turnover box is full of energy metering instruments, it is automatically transported to the radio frequency binding unit 12 by the packing and warehousing conveyor line 14.

[0064] The RFID binding unit 12 is located on the packing and warehousing conveyor line 14. The RFID binding unit 12 is used to scan and bind information of the packed turnover boxes and electricity metering devices, and upload the data to the control system. RFID binding refers to binding the packed electricity metering devices to the turnover boxes, establishing a correspondence between the box and the meter assets, and uploading the data to meet the needs of warehousing, storage, management, and distribution. The RFID binding unit 12 simultaneously uses a barcode scanner and an RFID reader to identify, read, compare, and verify the barcodes and RFID tags of all electricity metering devices inside the turnover boxes, as well as the barcodes and RFID tags of the turnover boxes themselves, preventing misreading and missed readings.

[0065] The radio frequency binding unit 12 includes a first barcode scanner, a first RFID reader / writer, a second barcode scanner, and a second RFID reader / writer. The first barcode scanner is used to identify the barcode on the packed container, bind its information with the electricity metering device information, and upload it to the control system. The first RFID reader / writer is used to identify and read the RFID electronic tag on the container, bind its information with the electricity metering device information, and upload it to the control system. The second barcode scanner is used to identify the barcode on the electricity metering device inside the container, bind its information with the container information, and upload it to the control system. The second RFID reader / writer is used to read the RFID electronic tag on the electricity metering device inside the container, bind its information with the container information, and upload it to the control system.

[0066] The automatic unpacking system 100 also includes an inbound palletizing unit 13, which includes a second palletizer. The second palletizer is located at the exit section of the box-inbound conveyor line 14 and is used to palletize the RFID-bonded turnover boxes. In this embodiment, the palletizer supports the palletizing of 10 turnover boxes.

[0067] Those skilled in the art will understand that this utility model, through the feeding unit 1, conveying unit, carton cutting unit 2, meter retrieval unit 4, appearance inspection unit 6, meter packing unit 7, RFID binding unit 12, and control system in the automatic unpacking system 100, achieves functions such as pallet feeding, carton feeding, carton opening, empty carton detection, automatic packing, three-code verification, and vertical warehouse docking, effectively solving the problem of low unpacking and warehousing efficiency caused by manual unpacking and warehousing in existing systems. Furthermore, this utility model can perform unpacking and warehousing processes for various metering instruments, including single-phase and three-phase energy meters, data acquisition terminals (Type I concentrators, Type III dedicated transformer data acquisition terminals, and energy controller dedicated transformers), exhibiting strong compatibility.

[0068] Furthermore, the waste box conveying line of this utility model includes a main waste box conveying line 16 and a waste box cover conveying line 17. The inlet section of the main waste box conveying line is matched with the outlet section of the feeding conveying line 3, and the outlet section of the waste box cover conveying line 17 is connected with the middle section of the main waste box conveying line 16. The two sets of parallel unit designs (dual-line unpacking mode) are adopted to effectively improve the unpacking efficiency.

[0069] The technical solution of this utility model has been described in conjunction with several embodiments above. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is not limited to these specific embodiments. Without departing from the technical principles of this utility model, those skilled in the art can disassemble and combine the technical solutions in the above embodiments, and can also make equivalent changes or substitutions to the relevant technical features. Any changes, equivalent substitutions, improvements, etc., made within the technical concept and / or technical principles of this utility model will fall within the protection scope of this utility model.

Claims

1. An automatic unpacking system for electricity metering instruments, characterized in that, It includes a feeding unit, a conveying unit, a carton cutting unit, a meter picking unit, an appearance inspection unit, a meter packing unit, an RFID bonding unit, and a control system; The feeding unit cooperates with the inlet of the feeding conveyor line to place the cardboard box carrying the electrical energy metering device onto the feeding conveyor line. The conveying unit includes a feeding conveyor line, a waste box conveyor line, a turnover box conveyor line, a meter conveyor line, and a box-packing and warehousing conveyor line; the outlet section of the feeding conveyor line is connected to one end of the waste box conveyor line, and the other end of the waste box conveyor line is connected to the inlet section of the meter conveyor line; the meter conveyor line and its inlet section are located above the outlet section of the feeding conveyor line, and the outlet section of the meter conveyor line is located above the inlet section of the box-packing and warehousing conveyor line; the outlet section of the turnover box conveyor line cooperates with the inlet section of the box-packing and warehousing conveyor line. The carton cutting unit is located on the feeding conveyor line and is used to cut the cartons on the feeding conveyor line and transfer the cartons and electricity metering devices to the waste carton conveyor line and the meter conveyor line, respectively. The meter retrieval unit is located on the feeding conveyor line and is used to transfer the cut cartons to the waste carton conveyor line and transfer the electricity metering devices to the meter conveyor line. The appearance inspection unit is located on the meter conveyor line and is used to inspect the appearance integrity and foreign object condition of the electricity metering devices, bind the inspection results of each electricity metering device with the information of the electricity metering device, and then transfer the electricity metering devices to the packing and warehousing conveyor line. The turnover box conveyor line is used to transport turnover boxes to the packing and warehousing conveyor line. The meter packing unit is located on the packing and warehousing conveyor line and is used to transfer the electricity metering devices into the turnover boxes. The radio frequency binding unit is located on the packing and warehousing conveyor line and is used to scan and bind the information of the electricity metering devices on the turnover boxes and upload the data to the control system. The control system is connected to the feeding unit, the conveying unit, the carton cutting unit, the meter retrieval unit, the appearance inspection unit, the meter packing unit, and the radio frequency binding unit, respectively, to control each unit to perform unpacking operations.

2. The automatic unpacking system for electricity metering instruments according to claim 1, characterized in that, The waste box conveying line includes a main waste box conveying line and a waste box cover conveying line. The inlet section of the main waste box conveying line is connected to the outlet section of the feeding conveying line, and the outlet section of the waste box cover conveying line is connected to the middle section of the main waste box conveying line. The carton cutting unit includes a lid-opening mechanism, which is used to transfer the top cover of the cut carton to the waste carton top cover conveyor line; and the feeding conveyor line transfers the carton base carrying the electricity meter to the meter retrieval unit.

3. The automatic unpacking system for electricity metering instruments according to claim 2, characterized in that, The lifting mechanism includes a suction cup assembly and a drive arm, wherein the suction cup assembly is used to adsorb the top cover of the carton; The carton cutting unit also includes a cutting frame, one end of the drive arm is connected to one end of the cutting frame, and the other end of the drive arm is connected to the suction cup assembly. The drive arm is used to drive the suction cup assembly to rotate so as to transfer the top cover of the carton.

4. The automatic unpacking system for electricity metering instruments according to claim 3, characterized in that, The opening mechanism is mounted on the cutting frame, which includes a cutting milling cutter for cutting cartons. The carton cutting unit also includes a clamping mechanism, which is provided on both sides of the feeding conveyor line. The clamping mechanism is used to clamp the carton containing the electricity metering device.

5. The automatic unpacking system for electricity metering instruments according to claim 4, characterized in that, The cutting frame includes a laser positioning module and a drive mechanism. The laser positioning and detection module is used to scan the surface of the cardboard box and determine the cutting position on the cardboard box; the drive mechanism is used to drive the cutting milling cutter to move to the cutting position.

6. The automatic unpacking system for electricity metering instruments according to claim 2, characterized in that, The meter retrieval unit includes a meter retrieval robotic arm located on one side of the feeding conveyor line. The meter retrieval robotic arm is used to grab the energy metering device inside the cut carton, transfer the energy metering device to the meter conveyor line, and transfer the remaining carton to the waste carton main conveyor line.

7. The automatic unpacking system for electricity metering instruments according to claim 1, characterized in that, The feeding unit includes a feeding robotic arm, which is used to grab and move a whole box of electrical energy metering devices to the feeding conveyor line; The meter retrieval unit includes a meter retrieval robotic arm, which is used to transfer the electricity metering device from the cut cardboard box to the feeding conveyor line; and / or The meter packing unit includes a packing robot arm, which is used to transfer the electricity metering device into a turnover box.

8. The automatic unpacking system for electricity metering instruments according to claim 7, characterized in that, The energy metering devices include single-phase energy meters, three-phase energy meters, Type I concentrators, Type III dedicated transformer data acquisition terminals, and dedicated energy controller transformers; and / or Both the meter-retrieving robotic arm and the box-packing robotic arm are compatible with single-phase energy meters, three-phase energy meters, Type I concentrators, Type III dedicated transformer acquisition terminals, and dedicated energy controller transformers.

9. The automatic unpacking system for electricity metering instruments according to claim 1, characterized in that, The appearance inspection unit includes: The appearance inspection frame is located above one side of the meter conveyor line; A positioning mechanism, one end of which is connected to the appearance inspection frame, is used to determine that the energy metering device is placed in a designated position. The camera detection / scanning module includes a scanning module and a camera module. The scanning module is used to scan the information on the energy metering device; the camera module is used to detect the appearance and foreign objects of the energy metering device at a specified location, and bind the detection results with the information of the energy metering device. A drive arm, one end of which is connected to the appearance inspection frame, and the other end of which is rotatably connected to the camera inspection / scanning module. The drive arm is used to drive the camera inspection / scanning module to move.

10. The automatic unpacking system for electricity metering instruments according to claim 1, characterized in that, The automatic unpacking system also includes a depalletizing unit, a cleaning unit, and a detection unit, all installed on the turnover box conveyor line and connected to the control system. The turnover box destacking unit includes a destacking machine, which is used to destacking a whole stack of turnover boxes on the turnover box conveyor line; The turnover box cleaning unit is used to clean the surface of the turnover boxes after they have been unstacked on the turnover box conveyor line; The turnover box detection unit is used to scan the information on the cleaned turnover boxes.

11. The automatic unpacking system for electricity metering instruments according to claim 10, characterized in that, The turnover box cleaning unit also includes an air gun and a vacuum cleaner installed on the turnover box conveyor line, with the vacuum cleaner located below the air gun. The air gun is used to blow out the dust from the surface of the turnover box. The vacuum cleaner is used to remove the dust blown down by the air gun.

12. The automatic unpacking system for electricity metering instruments according to claim 10, characterized in that, The turnover box detection unit includes an information scanning mechanism, which includes an RFID reader and a three-dimensional scanning measuring instrument. The RFID reader is used to identify the radio frequency tags on the cleaned turnover box; the three-dimensional scanning measuring instrument is used to detect the shape of the cleaned turnover box.

13. The automatic unpacking system for electricity metering instruments according to claim 1, characterized in that, The radio frequency binding unit is used to bind the information of the energy metering device after the box is packed to the information of the turnover box, and upload the data to the control system. The radio frequency bonding unit includes: The first barcode scanner is used to identify the barcode on the packing box, then bind its information with the information of the electricity metering device and upload it to the control system. The first RFID reader is used to identify and read the RFID electronic tags on the turnover box, then bind their information with the information of the power metering device and upload it to the control system. The second barcode scanner is used to identify the barcode on the electricity metering device inside the turnover box, then bind its information with the turnover box information and upload it to the control system. The second RFID reader is used to read the RFID electronic tags on the power metering devices inside the turnover box, then bind their information with the turnover box information and upload it to the control system.

14. The automatic unpacking system for electricity metering instruments according to claim 1, characterized in that, Also includes: The inbound palletizing unit includes a palletizer, which is located at the exit section of the packing and inbound conveyor line and is used to palletize the RFID-bonded turnover boxes.

15. The automatic unpacking system for electricity metering instruments according to claim 1, characterized in that, Also includes: An AGV docking unit includes an AGV docking vehicle, which is used to transport a whole pallet of the energy metering device in the unloading area to the buffer area or to transport a whole pallet of the energy metering device in the buffer area to the loading unit.

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