Cargo image recognition automatic scanning device

Abstract

The utility model relates to scanning device technical field, concretely is a kind of goods image recognition automatic scanning device, the front end of processing platform is fixedly arranged control machine case, two support plates are symmetrically arranged in the both sides of first conveying belt, the outside of support plate is equipped with laser scanning assembly, the inside of support plate is equipped with laser scanning probe, annular frame is located above bottom plate, a plurality of industrial cameras are equipped on annular frame, one side of annular frame is equipped with side plate, one side of processing platform is fixedly arranged lifting assembly, the plurality of industrial cameras on annular frame cooperate rotatable support rod (by second motor, pivot, positioning frame drive), can flexibly adjust shooting angle, make scanning range can cover different size, shape goods, ensure that surface information is not missed, especially suitable for large or special-shaped parts.

Description

Technical Field

[0001] This utility model relates to the field of scanning device technology, specifically to an automatic scanning device for cargo image recognition. Background Technology

[0002] In the automated operation process of the express sorting center, goods need to be transferred through high-speed conveyor belts. The destination code (such as barcode or QR code) on the surface of the goods is collected in real time by the automatic scanning device of goods image recognition, and the recognition information is transmitted to the sorting control system in a synchronous manner. This drives the sorting machine to accurately complete the sorting of goods and ensure that they enter the corresponding transportation line.

[0003] Current mainstream scanning devices of this type, limited by installation methods and recognition field of view, mostly use scanners deployed in fixed locations for information collection. However, the size and specifications of express delivery goods vary significantly—from small document envelopes and standard express boxes to large parcels and irregularly shaped items (such as appliance packaging and irregular daily necessities) are quite common. The effective scanning range of fixed scanners cannot cover all sizes of goods: for larger items, the parts that are outside the scanner's field of view cannot be effectively captured, which can easily lead to incomplete scanning of the goods and consequently, incomplete extraction of key sorting information such as destination codes. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an automatic scanning device for cargo image recognition.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic scanning device for cargo image recognition, comprising a processing table and a ring frame, wherein a hollow groove is provided in the middle part of the processing table, and a first conveyor belt and a second conveyor belt are symmetrically arranged on both sides of the processing table, and a bottom plate is rotatably arranged in the hollow groove;

[0008] A control box is fixedly installed at the front end of the processing table. Two support plates are symmetrically arranged on both sides of the first conveyor belt. A laser scanning assembly is provided on the outer side of the support plate, and a laser scanning probe is provided on the inner side of the support plate.

[0009] The ring frame is located above the base plate and is equipped with multiple industrial cameras. A side plate is provided on one side of the ring frame, and a lifting assembly is fixedly installed on one side of the processing table. The output end of the lifting assembly is equipped with a drive rod that connects to the side plate.

[0010] To improve the stability of the base plate during use, the present invention includes the following improvements: a bearing is installed in the slot, the outer ring of the bearing is interference-fitted with the processing table, the inner ring of the bearing is interference-fitted with the base plate, a support plate is provided below the processing table, a first motor is fixedly installed at the upper end of the support plate, and a drive shaft connected to the base plate is provided at the output end of the first motor.

[0011] To facilitate assembly of the ring frame, the present invention is improved by fixing the side plate to the top of the drive rod with screws.

[0012] Furthermore, an improvement of this utility model is that the lifting assembly adopts an electric lifting rod.

[0013] To enable the industrial camera to scan goods more comprehensively, the present invention includes the following improvements: the ring frame is provided with multiple placement slots, two positioning frames are symmetrically arranged on both sides of the placement slots, a support rod is provided in the placement slot, the industrial camera is fixed to the bottom end of the support rod, a rotating shaft is fixed to the top end of the support rod, and the two ends of the rotating shaft are rotatably connected to the positioning frames. A second motor is fixed to one side of one of the positioning frames, and the output end of the second motor is connected to one end of the rotating shaft.

[0014] Furthermore, an improvement of this utility model is that three industrial cameras are mounted on the ring frame.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides an automatic scanning device for cargo image recognition, which has the following advantages:

[0017] Multiple industrial cameras on the ring frame, along with rotatable support rods (driven by a second motor, rotating shaft, and positioning frame), allow for flexible adjustment of the shooting angle;

[0018] The base plate achieves stable rotation through a first motor, drive shaft, and bearings. Combined with lifting components (such as an electric lifting rod), it drives the ring frame to rise and fall, enabling the scanning range to cover goods of different sizes and shapes, ensuring that no surface information is missed. It is especially suitable for large or irregularly shaped parts. Attached Figure Description

[0019] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a second-view three-dimensional structural diagram of the present invention;

[0021] Figure 3 This utility model Figure 1 Side view;

[0022] Figure 4 This utility model Figure 1 The main view.

[0023] In the diagram: 1. Processing table; 2. First conveyor belt; 3. Second conveyor belt; 4. Base plate; 5. First motor; 6. Control box; 7. Lifting assembly; 8. Ring frame; 9. Side plate; 10. Positioning frame; 11. Second motor; 12. Support rod; 13. Industrial camera; 14. Support plate; 15. Laser scanning assembly. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-4 This utility model provides an automatic scanning device for cargo image recognition, including a processing table 1 and a ring frame 8. The processing table 1 has a hollow groove in the middle part, and a first conveyor belt 2 and a second conveyor belt 3 are symmetrically arranged on both sides of the processing table 1. A bottom plate 4 is rotatably arranged in the hollow groove.

[0026] The front end of the processing table 1 is fixedly equipped with a control box 6, and two support plates 14 are symmetrically arranged on both sides of the first conveyor belt 2. A laser scanning assembly 15 is provided on the outer side of the support plate 14, and a laser scanning probe is provided on the inner side of the support plate 14.

[0027] The ring frame 8 is located above the base plate 4. Multiple industrial cameras 13 are mounted on the ring frame 8. A side plate 9 is provided on one side of the ring frame 8. A lifting assembly 7 is fixedly mounted on one side of the processing table 1. A drive rod connected to the side plate 9 is provided at the output end of the lifting assembly 7.

[0028] The lifting assembly 7 is an electric lifting rod.

[0029] The ring frame 8 is equipped with three industrial cameras 13.

[0030] The operation process of the cargo image recognition automatic scanning device is controlled and managed by the control box 6, with each component working together to complete the task. The specific steps are as follows:

[0031] The goods are first transported via the first conveyor belt 2. When they enter between two symmetrically arranged support plates 14, the laser scanning component 15 on the outer side of the support plate 14 detects the goods and triggers the control box 6 to issue a command to stop the first conveyor belt 2. At this time, the goods are picked up and placed on the bottom plate 4 in the empty slot in the middle of the processing table 1.

[0032] A bearing is installed in the slot. The outer ring of the bearing is interference-fitted with the processing table 1, and the inner ring of the bearing is interference-fitted with the base plate 4. A support plate is provided below the processing table 1. A first motor 5 is fixedly installed at the upper end of the support plate. The output end of the first motor 5 is provided with a drive shaft connected to the base plate 4.

[0033] The control box 6 drives the first motor 5 on the support plate below the processing table 1 to start, and the first motor 5 drives the base plate 4 to rotate through the drive shaft;

[0034] Because the base plate 4 is connected to the slot by a bearing (the outer ring of the bearing is interference-fitted with the machining table 1, and the inner ring is interference-fitted with the base plate 4), the base plate 4 rotates smoothly.

[0035] The side plate 9 is fixed to the top of the drive rod with screws.

[0036] At the same time, the control box 6 starts the lifting component 7 on one side of the processing table 1. The lifting component 7 drives the side plate 9 on one side of the ring frame 8 (the side plate 9 is fixed to the top of the drive rod with screws) through the drive rod, so that the ring frame 8 can be raised and lowered smoothly in the vertical direction to adapt to goods of different heights.

[0037] The ring frame 8 is provided with multiple placement slots, and two positioning frames 10 are symmetrically arranged on both sides of the placement slots. A support rod 12 is provided in the placement slot. An industrial camera 13 is fixed to the bottom end of the support rod 12. A rotating shaft is fixed to the top end of the support rod 12. The two ends of the rotating shaft are rotatably connected to the positioning frame 10. A second motor 11 is fixed to one side of one of the positioning frames 10. The output end of the second motor 11 is connected to one end of the rotating shaft.

[0038] During the scanning process, the multiple industrial cameras 13 on the ring frame 8 adjust their angles by cooperating with the positioning frames 10 on both sides of the placement slot: the rotating shaft between the positioning frames 10 rotates under the drive of the second motor 11, which drives the support rod 12 (the industrial camera 13 is fixed at the bottom of the support rod 12) connected to the rotating shaft to rotate back and forth, thereby changing the shooting angle of the industrial camera 13. Combined with the rotation of the base plate 4 and the lifting of the ring frame 8, a comprehensive scan of the goods from all directions is achieved.

[0039] The laser scanning probe inside the support plate 14 synchronously assists in collecting cargo information. All scanning data is transmitted to the control equipment via electrical signals, and cargo identification is completed through internal algorithms.

[0040] After identification is completed, the control box 6 stops the first motor 5, the base plate 4 stops, and the goods are picked up and transferred to the second conveyor belt 3 on the other side of the processing table 1 to continue to the subsequent sorting stage. At the same time, the device is reset and ready for the next scanning operation.

[0041] Enhanced Automation and Continuity: The control box 6 coordinates the start and stop of the first conveyor belt 2 and the second conveyor belt 3, as well as the detection of the laser scanning component 15 (including the laser scanning probe), the drive of the motor, and the movement of the lifting component 7, to achieve automated connection from cargo transportation, detection, scanning to subsequent circulation.

[0042] Structural stability and reliability optimization: The bearing configuration ensures smooth rotation of the base plate 4, the screw-fixed side plate 9 securely connects the ring frame 8 to the drive rod, and the positioning frame 10 supports the rotating shaft to ensure precise angle adjustment of the industrial camera 13. The stable cooperation of each component reduces errors during the scanning process and improves recognition accuracy.

[0043] The laser scanning component 15 and the industrial camera 13 work together, with the laser scanning probe assisting in initial detection and information supplementation, and the industrial camera 13 responsible for all-round image acquisition. Combined with the intelligent control of the control box 6, a complete closed loop of "detection-scanning-identification-transfer" is formed, which meets the needs of efficient and accurate identification in scenarios such as express delivery sorting.

[0044] Control chassis 6:

[0045] Functional Requirements: To coordinate and control the start-up, shutdown, and coordinated actions of various electrical components (motors, lifting assembly 7, laser scanning equipment, industrial camera 13, etc.), receive and process scanning signals, and output control commands. Selection Considerations:

[0046] The core controller should be an industrial-grade PLC (Programmable Logic Controller) or an embedded industrial computer, and should have multi-channel I / O interfaces (compatible with digital and analog signals) to support real-time communication with external devices (such as RS485 and Ethernet interfaces).

[0047] Equipped with a stable power module, the output voltage is compatible with various components (such as 24V DC power supply), and it has overcurrent and overvoltage protection functions.

[0048] The outer shell is designed to be dustproof and oil-proof (protection level not lower than IP54), making it suitable for dusty environments in sorting centers.

[0049] Laser scanning assembly 15 and laser scanning probe:

[0050] Functional Requirements: The laser scanning component 15 is responsible for detecting the signal of goods entering the scanning area, and the laser scanning probe assists in collecting preliminary information about the surface of the goods (such as rapid recognition of barcodes and QR codes). Selection Considerations:

[0051] The laser scanning component 15 uses an industrial-grade laser sensor with a scanning frequency of ≥500 times / second and a detection distance adapted to the width of the first conveyor belt 2 (usually 0.5-2m). It supports the start and stop of the conveyor belt by triggering a signal through the control box 6.

[0052] The laser scanning probe uses a high-resolution barcode scanning module, which supports mixed recognition of 1D and 2D codes, with a decoding speed of ≥300 times / second. It has anti-reflective and fuzzy recognition capabilities (adapting to wrinkles, stains, etc. on the surface of goods), and the output signal is compatible with the control chassis interface 6 (such as USB or TTL level).

[0053] First motor 5 (drives base plate 4 to rotate):

[0054] Functional Requirements: Drive the base plate 4 to rotate at a constant speed, working with the industrial camera 13 to achieve 360° scanning of goods. Stable speed control and precise start / stop response are required. Selection Considerations:

[0055] Servo motors or high-precision stepper motors are selected. The rated power is determined based on the base plate 4 and the maximum cargo weight (usually 50-200W). The speed is adjustable (5-30r / min) and supports forward and reverse rotation and stepless speed regulation.

[0056] The matching driver must be compatible with the signals of the control chassis 6 (such as pulse + direction control), have overload protection function, and ensure that the base plate 4 rotates smoothly (without obvious shaking, so as to avoid affecting the scanning accuracy).

[0057] Lifting assembly 7 (electric lifting rod):

[0058] Functional Requirements: The device should be able to lift and lower a circular frame (8 units) to accommodate scanning of goods at different heights, and must possess stable load capacity and accurate position control. Selection Considerations:

[0059] It uses an industrial-grade electric lifting pole with a load capacity of ≥50kg (total weight of 8 ring frame, 13 industrial cameras and 12 support poles), a lifting stroke of ≥500mm (covering the height range from small documents to large packages), and an adjustable lifting speed (50-200mm / s).

[0060] Built-in position sensor (such as Hall sensor) supports precise positioning of control box 6 (positioning error ≤ ±1mm), has limit protection function (avoids excessive lifting and lowering causing component damage), and is driven by DC motor (voltage 24V), compatible with control box 6 signal.

[0061] Industrial Camera 13:

[0062] Functional Requirements: Acquire omnidirectional image information of goods, requiring high resolution, high frame rate, and the ability to adapt to complex lighting conditions. Selection Considerations:

[0063] An industrial area scan camera with a resolution of ≥5 million pixels and a frame rate of ≥30fps (ensuring clear images during rapid movement or rotation) is selected. The sensor type is CMOS (with excellent low-light performance, adaptable to the varying lighting conditions in sorting centers).

[0064] The lens focal length is selected based on the diameter of the ring mount 8 and the scanning distance (usually 8-25mm), and supports autofocus or fixed focal length (preset according to the size range of the goods). The interface is GigE or USB 3.0 (ensuring high-speed data transmission to the control device).

[0065] It has a dustproof and anti-fog shell (IP65 protection level) to adapt to the possible moisture or dust environment in the sorting center.

[0066] Second motor 11 (drives industrial camera 13 to adjust angle):

[0067] Functional requirements: Drive the rotating shaft to rotate the support rod 12 and adjust the shooting angle of the industrial camera 13 (e.g., ±30° reciprocating rotation), and it needs to have the characteristics of miniaturization and high-precision control.

[0068] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0069] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0070] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An automatic scanning device for cargo image recognition, comprising a processing table (1) and a ring frame (8), wherein the processing table (1) has a hollow groove in the middle part, and a first conveyor belt (2) and a second conveyor belt (3) are symmetrically arranged on both sides of the processing table (1), characterized in that: The base plate (4) is rotatably installed inside the empty slot; The front end of the processing table (1) is fixedly equipped with a control box (6), and two support plates (14) are symmetrically arranged on both sides of the first conveyor belt (2). A laser scanning assembly (15) is provided on the outer side of the support plate (14), and a laser scanning probe is provided on the inner side of the support plate (14). The ring frame (8) is located above the base plate (4). Multiple industrial cameras (13) are mounted on the ring frame (8). A side plate (9) is mounted on one side of the ring frame (8). A lifting assembly (7) is fixedly mounted on one side of the processing table (1). A drive rod connected to the side plate (9) is mounted on the output end of the lifting assembly (7).

2. The automatic scanning device for cargo image recognition according to claim 1, characterized in that: The slot is equipped with a bearing. The outer ring of the bearing is interference-fitted with the processing table (1), and the inner ring of the bearing is interference-fitted with the base plate (4). The processing table (1) is equipped with a support plate below it. The upper end of the support plate is fixedly equipped with a first motor (5). The output end of the first motor (5) is equipped with a drive shaft connected to the base plate (4).

3. The automatic scanning device for cargo image recognition according to claim 2, characterized in that: The side plate (9) is fixed to the top of the drive rod by screws.

4. The automatic scanning device for cargo image recognition according to claim 3, characterized in that: The lifting assembly (7) uses an electric lifting rod.

5. The automatic scanning device for cargo image recognition according to claim 4, characterized in that: The ring frame (8) is provided with multiple placement slots. Two positioning frames (10) are symmetrically arranged on both sides of the placement slots. A support rod (12) is provided in the placement slot. An industrial camera (13) is fixed at the bottom of the support rod (12). A rotating shaft is fixed at the top of the support rod (12). The two ends of the rotating shaft are rotatably connected to the positioning frame (10). A second motor (11) is fixed on one side of one of the positioning frames (10). The output end of the second motor (11) is connected to one end of the rotating shaft.

6. The automatic scanning device for cargo image recognition according to claim 5, characterized in that: The ring frame (8) is equipped with three industrial cameras (13).

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