An unattended auxiliary weighing device and its management system

Abstract

The present invention discloses an unattended auxiliary weighing device and its management system, which relates to the field of logistics weighing and conveying, including a base plate, a plurality of weighing devices whose top passes through the base plate and extends to the upper part of the base plate and are arranged in a staggered manner, and a center of gravity prediction device connected to the top of the base plate through a bracket and located on the upper part of the weighing device. The device in the present invention can realize unattended automatic weighing of express boxes, and the center of gravity prediction device is used to predict the center of gravity of the express box during weighing, so that after the express box is weighed and placed, the center of gravity position of the express box is kept in a straight line with the weight sensor in the weighing device as much as possible, so as to facilitate the accuracy of the measurement data; the management system of the present invention realizes the automatic operation of the device, and at the same time facilitates the collection and analysis of the measurement data, the collection and recording of the weight information of the express box, and can report to the administrator end when the data is abnormal.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of logistics weighing and conveying, and specifically relates to an unattended auxiliary weighing device and a management system thereof. Background Art

[0002] In the logistics industry, the unattended intelligent weighing system can quickly and accurately measure the weight of goods, help achieve rapid warehousing and outbound delivery, improve work efficiency, and reduce personnel costs. At the same time, the system can automatically save and export weighing data for subsequent query and statistics, providing comprehensive data support for logistics companies.

[0003] The logistics weighing and conveying system in the prior art includes a bottom plate, a pair of support plates are respectively provided on the left and right sides of the bottom plate, a conveyor belt is provided between the two pairs of support plates, the conveyor belt is located above the bottom plate, a conveying motor for driving the conveyor belt to rotate is provided on the outer wall of one of the support plates, and a push plate and a weighing platform are respectively provided on the top surface of the bottom plate and located on the front and rear sides of the conveyor belt, and a weighing suction cup is provided on the weighing platform. The existing product sets a push plate and a weighing platform on both sides of the assembly line, and a weighing suction cup is provided above the weighing platform. The push plate can automatically push the package from the assembly line to the weighing platform, and then the weighing suction cup can automatically descend to absorb and lift the package, so as to know the weight of the package.

[0004] When measuring the weight of a logistics express box, the accuracy of the measurement data is very important. The products in the prior art are not convenient for predicting the center of gravity of the express box during weight measurement and placing the center of gravity of the express box at a suitable weight measurement point. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide an unattended auxiliary weighing device and a management system thereof to solve the technical problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an unattended auxiliary weighing device, comprising a base plate, a plurality of weighing devices whose tops penetrate the base plate and extend to the upper part of the base plate and are staggered, a center of gravity prediction device connected to the top of the base plate through a bracket and located on the upper part of the weighing devices, the weighing device comprising a base box arranged on the ground, a multi-weight sensor weighing device arranged on the base box, a weighing plate located on the upper part of the base plate and whose bottom abuts against the top of the multi-weight sensor weighing device, a single-weight sensor weighing device located on the weighing plate and whose bottom penetrates the base box and extends into the base box, and a lifting power component arranged in the base box;

[0007] The lifting power component is used to drive the single-weight sensor weighing device to move upward to receive the weighing plate, and to separate the weighing plate from the multi-weight sensor weighing device;

[0008] The center of gravity prediction device includes a three-axis mover connected to the top of the base plate through a bracket, an n-shaped frame arranged at the execution end of the three-axis mover, a swing component arranged in the n-shaped frame, a bidirectional linear module arranged at the execution end of the swing component, and two impact detection components symmetrically arranged at the two moving ends of the bidirectional linear module.

[0009] Preferably, the multi-weight sensor weighing device comprises a first bracket arranged on the base box, a plurality of first weight sensors arranged on the top of the first bracket, and a second bracket arranged on the top of the first weight sensor, wherein the top of the second bracket contacts the bottom of the weighing plate;

[0010] The single-weight sensor weighing device includes a positioning tube whose bottom is connected to the top of the base box, a first support plate slidably connected to the inner wall of the positioning tube, a second weight sensor disposed on the top of the first support plate, a second support plate disposed on the top of the second weight sensor, a plurality of inclined support rods disposed on the top of the second support plate, and a guide column disposed on the top of the inclined support rods and passing through the weighing plate. In this preferred embodiment, the dual weighing of the multi-weight sensor weighing device and the single-weight sensor weighing device facilitates the measurement and verification of the express box, and can also assist in judging whether the center of gravity of the express box is within the set area through data differences.

[0011] Preferably, the lifting power component includes a ball head protrusion arranged at the bottom of the first support plate, a ramp plate slidably connected to the inner wall of the base box and abutting against the bottom of the ball head protrusion, and a driving cylinder arranged on the outer wall of the base box and used to drive the ramp plate to move. In this preferred embodiment, the lifting power component facilitates the stable lifting of the single weight sensor weighing device.

[0012] Preferably, it also includes a center of gravity posture support component disposed at the bottom of the weighing plate and having a top flush with the upper surface of the weighing plate, the center of gravity posture support component includes a plurality of positioning boxes disposed at the bottom of the weighing plate and having a top flush with the upper surface of the weighing plate, an electromagnetic block disposed at the bottom of the inner wall of the positioning box, a magnetic block slidably connected to the inner wall of the positioning box, a lifting plate disposed at the top of the magnetic block and having its top end passing through the positioning box, and an electromagnetic ring disposed at the top of the inner wall of the positioning box and sleeved on the outside of the lifting plate. In this preferred embodiment, the center of gravity posture support component is used to facilitate the support of the posture of the express box, so as to stabilize the center of gravity of the express box containing a shaking animal.

[0013] Preferably, the swing component includes a semicircular slide rotatably connected to the n-shaped frame, a first motor disposed on the outer wall of the n-shaped frame and used to drive the semicircular slide to rotate, a toothed wall arc-shaped slider slidably connected to the inner ring of the semicircular slide, a second motor disposed on the outer wall of the semicircular slide, and a driving gear disposed at the execution end of the second motor and meshing with the toothed wall arc-shaped slider, and the outer wall of the toothed wall arc-shaped slider is connected to the bidirectional linear module. In this preferred embodiment, the swing component facilitates the swinging of the express box.

[0014] Preferably, the impact detection component includes a detection box arranged at the execution end of the bidirectional linear module, grooves symmetrically arranged at the top and bottom of the inner wall of the detection box, three pressure sensors arranged at the inner wall end and both sides of the inner wall of the detection box, an n-shaped piece located in the detection box and connected to the outer wall of multiple pressure sensors, a force transmission block slidably connected to the groove and with the outer wall abutting against the n-shaped piece, and a clamping plate arranged on the outer wall of the force transmission block. In this preferred embodiment, the impact detection component facilitates the detection of the impact force after the express box is swung.

[0015] Preferably, it also includes a discharge component disposed on the base plate and having an execution end extending to the upper part of the weighing plate, the discharge component including a first linear module disposed on the base plate, a second linear module disposed at the execution end of the first linear module and located on the weighing plate, a micro motor disposed at the execution end of the second linear module and located on the upper part of the second linear module, and a paddle disposed at the execution end of the micro motor. In this preferred embodiment, the discharge component facilitates the discharge of the express box from the weighing plate, and the position of the express box on the weighing plate can be adjusted during the discharge process.

[0016] Preferably, the weighing device has a first conveyor belt at the feeding end, a second conveyor belt at the discharging end, and a switching conveying component is provided on the base plate and between two adjacent first conveyor belts. The switching conveying component includes a power motor provided at the bottom of the base plate and having an execution end that passes through the base plate and extends to the upper part of the base plate, and a guide plate provided at the execution end of the power motor. In this preferred embodiment, the switching conveying component facilitates the introduction of the express box into the first conveyor belt corresponding to the other weighing device when one of the weighing devices fails.

[0017] According to the above technical solution of an unattended auxiliary weighing equipment, a management system of an unattended auxiliary weighing equipment will also be provided, including a control center, and a cloud and an administrator end connected to the control center through a network, the control center including a traceability module, a center of gravity prediction module, a weight measurement module, a transmission module, an abnormal switching module and a data recording module, the center of gravity prediction module is used to trigger the center of gravity prediction device and predict the center of gravity position of the express box according to the information fed back by the center of gravity prediction device, and place the center of gravity position of the express box at the top center position of the weighing device; the weight measurement module is used to trigger the weighing device to obtain the weight information of the express box.

[0018] Preferably, the center of gravity prediction module includes a camera unit, a vibration unit, a prediction unit and a posture control unit, the camera unit is used to receive the photo information of the express box taken by the camera on the outer wall of the bidirectional linear module in the weighing device, the vibration unit is used to receive the impact information of the express box when it swings measured by the impact detection component, the prediction unit is used to receive the traceability information of the express box obtained from the traceability module, and predict the center of gravity position of the express box according to the photo information, impact information and traceability information of the express box, and the posture control unit is used to trigger the center of gravity posture support component to perform posture support on the express box;

[0019] The weight measurement module includes a multi-weighing unit, a single weighing unit and an error analysis unit. The multi-weighing unit is used to obtain the first weight information measured by the multi-weight sensor weighing device, and the single weighing unit is used to obtain the second weight information measured by the single weight sensor weighing device. The error analysis unit analyzes the difference between the second weight information and the first weight information and judges whether the weighing is qualified or the center of gravity is readjusted or an error is reported based on the difference. In this preferred embodiment, the center of gravity prediction module is used to facilitate the prediction of the center of gravity of the express box, and the weight measurement module is used to facilitate the accurate acquisition of the weight information of the express box.

[0020] In summary, the present invention mainly has the following beneficial effects:

[0021] The device of the present invention can realize unattended automatic weighing of express boxes. During weighing, the center of gravity prediction device is used to predict the center of gravity of the express box, so that after the express box is weighed and placed, the center of gravity position of the express box is kept in a straight line with the weight sensor in the weighing device as much as possible, so as to facilitate the accuracy of the measured data. The weighing device is used to realize the recheck weighing. While ensuring the accuracy of the measured weight data, it can be checked whether the center of gravity position of the express box is located in the set area on the weighing plate, because the single weight sensor weighing device is more susceptible to the influence of eccentric load than the multi-weight sensor weighing device.

[0022] The management system of the present invention realizes the automatic operation of the device, and is convenient for collecting and analyzing the measurement data, collecting and recording the weight information of the express box, and reporting to the administrator end when the data is abnormal;

[0023] The weighing device uses a multi-weight sensor weighing device and a single-weight sensor weighing device to measure and verify the express box. At the same time, it can help determine whether the center of gravity of the express box is within the set area through data differences. The lifting power component is used to stably lift the single-weight sensor weighing device. The center of gravity posture support component is used to support the posture of the express box, so as to stabilize the center of gravity of the express box containing shaking objects.

[0024] The center of gravity prediction device facilitates the swinging of the express box by using a swinging component, and facilitates the detection of the impact force of the express box after the swinging by using an impact detection component;

[0025] The unloading component facilitates unloading the express box from the weighing plate, and the position of the express box on the weighing plate can be adjusted during the unloading process. The switching conveying component facilitates the introduction of the express box to the first conveyor belt corresponding to the other weighing device when one of the weighing devices fails, so that the device can operate stably without supervision.

[0026] The center of gravity prediction module in the management system facilitates the prediction of the center of gravity of the express box, and the weight measurement module facilitates the accurate acquisition of the weight information of the express box. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an axonometric diagram of the overall structure of the device of the present invention;

[0028] Figure 2 It is an exploded view of the overall structure of the device of the present invention;

[0029] Figure 3 It is an axonometric diagram of the weighing device structure of the present invention;

[0030] Figure 4 It is an exploded view of the weighing device structure of the present invention;

[0031] Figure 5 It is an axonometric diagram of the center of gravity prediction device structure of the present invention;

[0032] Figure 6 It is an exploded diagram of the structure of the center of gravity prediction device of the present invention;

[0033] Figure 7 It is a top view of the overall structure of the present invention;

[0034] Figure 8 It is a cross-sectional view of the overall structure of the present invention;

[0035] Fig. 9 It is a structural cross-sectional view of the weighing device of the present invention;

[0036] Fig.10 This is an exploded view of the structure at A of the present invention;

[0037] Fig.11 This is an exploded view of the structure at B of the present invention;

[0038] Fig.12 It is a structural framework diagram of the management system of the present invention;

[0039] Fig.13 This is a structural framework diagram of the control center system of the present invention.

[0040] Description of the drawings: 10, base plate; 11, first conveyor belt; 12, second conveyor belt; 13, switching conveying component; 131, power motor; 132, guide plate; 20, weighing device; 21, base box; 22, multi-weight sensor weighing device; 221, first bracket; 222, first weight sensor; 223, second bracket; 23, weighing plate; 24, single weight sensor weighing device; 241, positioning tube; 242, first support plate; 24 3. Second weight sensor; 244. Second support plate; 245. Tilt support rod; 246. Guide column; 25. Lifting power component; 251. Ball head protrusion; 252. Slope plate; 253. Drive cylinder; 26. Center of gravity posture support component; 261. Positioning box; 262. Electromagnetic block; 263. Magnetic block; 264. Lifting plate; 265. Electromagnetic ring; 27. Unloading component; 271. First linear module; 272. Second linear module; 2 73, micro motor; 274, paddle; 30, center of gravity prediction device; 31, three-axis mover; 32, n-shaped frame; 33, swing component; 331, semicircular slide rail; 332, first motor; 333, tooth wall arc slider; 334, second motor; 335, driving gear; 34, bidirectional linear module; 35, impact detection component; 351, detection box; 352, groove; 353, pressure sensor; 354, n-shaped sheet; 355, force transmission block; 356, splint; 40, control center; 41, traceability module; 42, center of gravity prediction module; 421, camera unit; 422, vibration unit; 423, prediction unit; 424, posture control unit; 43, weight measurement module; 431, multi-weighing unit; 432, single-weighing unit; 433, error analysis unit; 44, transmission module; 45, abnormal switching module; 46, data recording module; 50, cloud; 60, administrator end. DETAILED DESCRIPTION

[0041] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0042] The following describes an embodiment of the present invention based on its overall structure. Example

[0043] Please refer to the attached Figure 1 , 2 As shown in Figures 7, 8, 9, 12, and 13, in a preferred embodiment of the present invention, an unattended auxiliary weighing device includes a base plate 10, a plurality of weighing devices 20 whose tops penetrate the base plate 10 and extend to the upper part of the base plate 10 and are staggered, a center of gravity prediction device 30 connected to the top of the base plate 10 through a bracket and located on the upper part of the weighing device 20, and also includes a discharge component 27 arranged on the base plate 10 and whose execution end extends to the upper part of the weighing plate 23, the discharge component 27 includes a first linear module 271 arranged on the base plate 10, and a second linear module arranged at the execution end of the first linear module 271 and located on the weighing plate 23. 272, a micro motor 273 provided at the execution end of the second linear module 272 and located at the upper part of the second linear module 272, and a paddle 274 provided at the execution end of the micro motor 273, a first conveyor belt 11 is provided at the feeding end of the weighing device 20, a second conveyor belt 12 is provided at the unloading end of the weighing device 20, a switching conveying component 13 is provided on the base plate 10 and located between two adjacent first conveyor belts 11, the switching conveying component 13 includes a power motor 131 provided at the bottom of the base plate 10 and the execution end passes through the base plate 10 and extends to the upper part of the base plate 10, and a guide plate 132 is provided at the execution end of the power motor 131.

[0044] It should be noted that, in the present embodiment, when the device is running to weigh the express box, the transmission module 44 in the control center 40 triggers the first conveyor belt 11 to continuously convey the express box to the weighing device 20, the center of gravity prediction module 42 triggers the center of gravity prediction device 30 to clamp the express box, and at the same time predicts the center of gravity position of the express box according to the information fed back by the center of gravity prediction device 30, and triggers the center of gravity prediction device 30 again to place the center of gravity position of the express box at the top center position of the weighing device 20, the weight measurement module 43 is used to trigger the weighing device 20 to obtain the weight information of the express box, and the weight information is recorded by the data recording module 46, after the express box is weighed, the transmission module 44 triggers the unloading component 27 to unload the express box on the top of the weighing device 20 to the second conveyor belt 12, and the second conveyor belt 12 moves the express box after the weight measurement to the next express box processing station;

[0045] Furthermore, when the unloading component 27 is working, the execution end of the first linear module 271 drives the second linear module 272 to move, the outer wall of the second linear module 272 pushes the express box to move, the execution end of the second linear module 272 drives the micro motor 273 to move, the execution end of the micro motor 273 drives the paddle 274 to rotate, and after the paddle 274 abuts against the outer shell of the express box, the execution end of the second linear module 272 can drive the express box to move, so as to adjust the position of the express box, so as to achieve stable transmission of the express box after unloading;

[0046] Furthermore, when one of the weighing devices 20 fails, the abnormal switching module 45 triggers the switching conveying component 13 corresponding to the faulty weighing device 20, and the switching conveying component 13 diverts the express box to guide the express box into the first conveyor belt 11 corresponding to the other weighing device 20. When the switching conveying component 13 is working, the execution end of the power motor 131 drives the guide plate 132 to rotate, and the guide plate 132 diverts the express box.

[0047] Please refer to the attached Figure 3 , 4As shown in Figure 10, in another preferred embodiment of the present invention, the weighing device 20 includes a base box 21 arranged on the ground, a multi-weight sensor weighing device 22 arranged on the base box 21, a weighing plate 23 located on the upper part of the base plate 10 and with the bottom abutting against the top of the multi-weight sensor weighing device 22, a single-weight sensor weighing device 24 located on the weighing plate 23 and with the bottom penetrating through the base box 21 and extending into the base box 21, and a lifting power component 25 arranged in the base box 21; the lifting power component 25 is used to drive the single-weight sensor weighing device 24 to move up to receive the weighing plate 23, and The weighing plate 23 is separated from the multi-weight sensor weighing device 22; the multi-weight sensor weighing device 22 includes a first bracket 221 arranged on the base box 21, a plurality of first weight sensors 222 arranged on the top of the first bracket 221, and a second bracket 223 arranged on the top of the first weight sensor 222, and the top of the second bracket 223 contacts the bottom of the weighing plate 23; the single weight sensor weighing device 24 includes a positioning tube 241 whose bottom is connected to the top of the base box 21, a first support plate 242 slidably connected to the inner wall of the positioning tube 241, and a second support plate 242 arranged on the top of the first support plate 242. The second weight sensor 243 is provided at the top of the second weight sensor 243, a second support plate 244 is provided at the top of the second support plate 244, a plurality of inclined support rods 245 are provided at the top of the second support plate 244, and a guide column 246 is provided at the top of the inclined support rod 245 and passes through the weighing plate 23, the lifting power component 25 includes a ball head protrusion 251 provided at the bottom of the first support plate 242, a ramp plate 252 slidably connected to the inner wall of the base box 21 and abutting against the bottom of the ball head protrusion 251, and a driving cylinder 253 provided on the outer wall of the base box 21 and used to drive the ramp plate 252 to move, and further includes The center of gravity posture supporting component 26 is arranged at the bottom of the weighing plate 23 and the top is flush with the upper surface of the weighing plate 23. The center of gravity posture supporting component 26 includes a plurality of positioning boxes 261 arranged at the bottom of the weighing plate 23 and the top is flush with the upper surface of the weighing plate 23, an electromagnetic block 262 arranged at the bottom of the inner wall of the positioning box 261, a magnetic block 263 slidably connected to the inner wall of the positioning box 261, a lifting plate 264 arranged at the top of the magnetic block 263 and the top end passing through the positioning box 261, and an electromagnetic ring 265 arranged at the top of the inner wall of the positioning box 261 and sleeved on the outside of the lifting plate 264.

[0048] It should be noted that, in the present embodiment, when the express box is weighed by the weighing device 20, the multi-weighing unit 431 is used to obtain the first weight information measured by the multi-weight sensor weighing device 22, and the single-weighing unit 432 triggers the lifting power component 25 to make the single-weight sensor weighing device 24 receive the weighing plate 23, and at the same time obtains the second weight information measured by the single-weight sensor weighing device 24, and the error analysis unit 433 analyzes the difference between the second weight information and the first weight information;

[0049] When the difference is within the first set value, the weighing is judged to be qualified; when the difference is between the first set value and the second set value, the center of gravity is judged to be readjusted and measured; when the difference is greater than the second set value, an error is reported;

[0050] Furthermore, when the lifting power component 25 is working, the actuator end of the driving cylinder 253 drives the ramp plate 252 to move, and the ramp plate 252 drives the first support plate 242 to slide from bottom to top in the positioning tube 241 through the ball head protrusion 251, and the inclined support rod 245 drives the weighing plate 23 to move upward and separate from the second bracket 223.

[0051] Please refer to the attached Figure 5 , 6 As shown in 11, in another preferred embodiment of the present invention, the center of gravity prediction device 30 includes a three-axis mover 31 connected to the top of the base plate 10 through a bracket, an n-shaped frame 32 arranged at the execution end of the three-axis mover 31, a swing component 33 arranged in the n-shaped frame 32, a bidirectional linear module 34 arranged at the execution end of the swing component 33, and two impact detection components 35 symmetrically arranged at the two moving ends of the bidirectional linear module 34, the swing component 33 includes a semicircular slide rail 331 rotatably connected to the n-shaped frame 32, a first motor 332 arranged on the outer wall of the n-shaped frame 32 and used to drive the semicircular slide rail 331 to rotate, a toothed wall arc slider 333 slidably connected to the inner ring of the semicircular slide rail 331, and a second motor 333 arranged on the outer wall of the semicircular slide rail 331. 334, and a driving gear 335 arranged at the execution end of the second motor 334 and meshing with the toothed wall arc slider 333, the outer wall of the toothed wall arc slider 333 is connected to the bidirectional linear module 34, the impact detection component 35 includes a detection box 351 arranged at the execution end of the bidirectional linear module 34, a groove 352 symmetrically arranged at the top and bottom of the inner wall of the detection box 351, three pressure sensors 353 arranged at the end of the inner wall and on both sides of the inner wall of the detection box 351, an n-shaped piece 354 located in the detection box 351 and having multiple pressure sensors 353 connected to the outer wall, a force transmission block 355 slidably connected to the groove 352 and having an outer wall abutting against the n-shaped piece 354, and a splint 356 arranged on the outer wall of the force transmission block 355.

[0052] It should be noted that, in this embodiment, when predicting the center of gravity, the camera unit 421 is used to receive the photo information of the express box taken by the camera on the outer wall of the bidirectional linear module 34 in the weighing device 20, the vibration unit 422 is used to receive the impact information of the express box when it swings measured by the impact detection component 35, the prediction unit 423 is used to receive the traceability information of the express box obtained from the traceability module 41, and predict the center of gravity position of the express box through the neural network model according to the photo information, impact information and traceability information of the express box, and the posture control unit 424 is used to trigger the center of gravity posture support component 26 to support the express box to maintain the center of gravity;

[0053] Furthermore, the photo information of the express box can reflect the size of the express box, the traceability information of the express box can reflect the content of the express, and the impact information can reflect the mobility of the items in the express box.

[0054] Furthermore, when predicting the center of gravity, the execution end of the three-axis mover 31 drives the n-shaped frame 32 to move until the bidirectional linear module 34 reaches the specified position, and the execution end of the bidirectional linear module 34 drives the clamping plate 356 to move, and the two clamping plates 356 clamp the express box. After the express box is clamped, the swing component 33 swings the express box, and the impact detection component 35 obtains the impact information of the express box when it is swinging;

[0055] Furthermore, when the swing component 33 is working, the execution end of the first motor 332 drives the semicircular slide rail 331 to rotate clockwise and counterclockwise to drive the express box to swing, and the execution end of the second motor 334 drives the tooth wall arc slider 333 to rotate clockwise and counterclockwise through the driving gear 335 to drive the express box to swing;

[0056] Furthermore, when there is room for movement of items in the express box, the items hit the express box body, and the impact force is transmitted to the force transmission block 355, and the force transmission block 355 transmits the force to the pressure sensor 353 through the n-shaped sheet 354, and the pressure sensor 353 transmits the pressure data to the control center 40;

[0057] Furthermore, when the center of gravity posture support component 26 is working, the posture control unit 424 triggers the electromagnetic block 262 and the electromagnetic ring 265 at the corresponding position to be energized, the electromagnetic block 262 is energized to generate a repulsive force of the same polarity as the magnetic block 263, and the electromagnetic ring 265 is energized to generate an attractive force of the opposite polarity to the magnetic block 263, so that the lifting plate 264 moves up, and the lifting plate 264 supports the express box.

[0058] According to the above embodiments, a management system for unattended auxiliary weighing equipment is also provided, including a control center 40, and a cloud 50 and an administrator terminal 60 connected to the control center 40 through a network, wherein the control center 40 includes a traceability module 41, a center of gravity prediction module 42, a weight measurement module 43, a transmission module 44, an abnormal switching module 45 and a data recording module 46, wherein the center of gravity prediction module 42 is used to trigger the center of gravity prediction device 30 and predict the center of gravity position of the express box according to the information fed back by the center of gravity prediction device 30, and place the center of gravity position of the express box at the top center position of the weighing device 20; the weight measurement module 43 is used to trigger the weighing device 20 to obtain the weight information of the express box, and the center of gravity prediction module 42 includes a camera unit 421, a vibration unit 422, a prediction unit 423 and a posture control unit 424, wherein the camera unit 421 is used to receive the outer wall camera of the bidirectional linear module 34 in the weighing device 20 The camera takes the photo information of the express box, the vibration unit 422 is used to receive the impact information of the express box when it is swinging measured by the impact detection component 35, the prediction unit 423 is used to receive the traceability information of the express box obtained from the traceability module 41, and predict the center of gravity position of the express box according to the photo information, impact information and traceability information of the express box, the posture control unit 424 is used to trigger the center of gravity posture support component 26 to support the express box; the weight measurement module 43 includes a multi-weighing unit 431, a single weighing unit 432 and an error analysis unit 433, the multi-weighing unit 431 is used to obtain the first weight information measured by the multi-weight sensor weighing device 22, the single weighing unit 432 is used to obtain the second weight information measured by the single weight sensor weighing device 24, the error analysis unit 433 analyzes the difference between the second weight information and the first weight information and judges whether the weighing is qualified or the center of gravity is readjusted or an error is reported according to the difference.

[0059] The working principle of the present invention is:

[0060] The electrical components in the present invention are all triggered to operate by the PLC controller, and the PLC controller can realize data interaction with the control center 40;

[0061] When the device is running to weigh the express box, the transmission module 44 in the control center 40 triggers the first conveyor belt 11 to continuously convey the express box to the weighing device 20, and the center of gravity prediction module 42 triggers the center of gravity prediction device 30 to clamp the express box, and at the same time predicts the center of gravity position of the express box according to the information fed back by the center of gravity prediction device 30, and triggers the center of gravity prediction device 30 again to place the center of gravity position of the express box at the top center position of the weighing device 20. The weight measurement module 43 is used to trigger the weighing device 20 to obtain the weight information of the express box, and the weight information is recorded by the data recording module 46. After the express box is weighed, the transmission module 44 triggers the unloading component 27 to unload the express box on the top of the weighing device 20 to the second conveyor belt 12, and the second conveyor belt 12 moves the express box after the weight measurement to the next express box processing station;

[0062] When the unloading component 27 is working, the execution end of the first linear module 271 drives the second linear module 272 to move, the outer wall of the second linear module 272 pushes the express box to move, the execution end of the second linear module 272 drives the micro motor 273 to move, the execution end of the micro motor 273 drives the paddle 274 to rotate, after the paddle 274 abuts against the outer shell of the express box, the execution end of the second linear module 272 can drive the express box to move, so as to adjust the position of the express box, so as to achieve stable transmission of the express box after unloading;

[0063] When one of the weighing devices 20 fails, the abnormal switching module 45 triggers the switching conveying component 13 corresponding to the failed weighing device 20, and the switching conveying component 13 guides the express box to guide the express box to the first conveyor belt 11 corresponding to the other weighing device 20. When the switching conveying component 13 works, the execution end of the power motor 131 drives the guide plate 132 to rotate, and the guide plate 132 guides the express box;

[0064] When the express box is weighed by the weighing device 20, the multi-weighing unit 431 is used to obtain the first weight information measured by the multi-weight sensor weighing device 22, and the single-weighing unit 432 triggers the lifting power component 25 to make the single-weight sensor weighing device 24 receive the weighing plate 23, and at the same time obtains the second weight information measured by the single-weight sensor weighing device 24, and the error analysis unit 433 analyzes the difference between the second weight information and the first weight information;

[0065] When the difference is within the first set value, the weighing is judged to be qualified; when the difference is between the first set value and the second set value, the center of gravity is judged to be readjusted and measured; when the difference is greater than the second set value, an error is reported;

[0066] When the lifting power component 25 is working, the actuator end of the driving cylinder 253 drives the ramp plate 252 to move, and the ramp plate 252 drives the first support plate 242 to slide upward from bottom to top in the positioning tube 241 through the ball head protrusion 251, and the tilting support rod 245 drives the weighing plate 23 to move upward and separate from the second bracket 223;

[0067] When predicting the center of gravity, the camera unit 421 is used to receive the photo information of the express box taken by the camera on the outer wall of the bidirectional linear module 34 in the weighing device 20, the vibration unit 422 is used to receive the impact information of the express box when it swings measured by the impact detection component 35, the prediction unit 423 is used to receive the traceability information of the express box obtained from the traceability module 41, and predict the center of gravity position of the express box through the neural network model according to the photo information, impact information and traceability information of the express box, and the posture control unit 424 is used to trigger the center of gravity posture support component 26 to support the express box to maintain the center of gravity;

[0068] The photo information of the express box reflects the size of the express box, the traceability information of the express box reflects the content of the express, and the impact information reflects the mobility of the items in the express box.

[0069] When predicting the center of gravity, the execution end of the three-axis mover 31 drives the n-shaped frame 32 to move until the bidirectional linear module 34 reaches the specified position, and the execution end of the bidirectional linear module 34 drives the clamping plate 356 to move, and the two clamping plates 356 clamp the express box. After the express box is clamped, the swing component 33 swings the express box, and the impact detection component 35 obtains the impact information of the express box when it is swinging;

[0070] When the swing component 33 is working, the execution end of the first motor 332 drives the semicircular slide rail 331 to rotate clockwise and counterclockwise to drive the express box to swing, and the execution end of the second motor 334 drives the tooth wall arc slider 333 to rotate clockwise and counterclockwise through the driving gear 335 to drive the express box to swing;

[0071] When there is room for movement of items in the express box, the items hit the express box body, and the impact force is transmitted to the force transmission block 355. The force transmission block 355 transmits the force to the pressure sensor 353 through the n-shaped sheet 354. The pressure sensor 353 transmits the pressure data to the control center 40.

[0072] When the center of gravity posture supporting component 26 is working, the posture control unit 424 triggers the electromagnetic block 262 and the electromagnetic ring 265 at the corresponding position to be energized. The electromagnetic block 262 is energized to generate a repulsive force of the same polarity as the magnetic block 263, and the electromagnetic ring 265 is energized to generate an attractive force of the opposite polarity to the magnetic block 263, so that the lifting plate 264 moves up, and the lifting plate 264 supports the express box.

[0073] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An unattended auxiliary weighing device, comprising a base plate (10), a plurality of weighing devices (20) whose top passes through the base plate (10) and extends to the upper part of the base plate (10) and are arranged in a staggered manner, and a center of gravity prediction device (30) connected to the top of the base plate (10) through a bracket and located above the weighing devices (20), characterized in that: The weighing device (20) comprises a base box (21) disposed on the ground, a multi-weight sensor weighing device (22) disposed on the base box (21), a weighing plate (23) located on the upper part of the base plate (10) and with its bottom abutting against the top of the multi-weight sensor weighing device (22), a single-weight sensor weighing device (24) located on the weighing plate (23) and with its bottom penetrating through the base box (21) and extending into the base box (21), and a lifting power component (25) disposed in the base box (21); The lifting power component (25) is used to drive the single-weight sensor weighing device (24) to move upward to receive the weighing plate (23), and to separate the weighing plate (23) from the multi-weight sensor weighing device (22); The center of gravity prediction device (30) comprises a three-axis mover (31) connected to the top of the base plate (10) via a bracket, an n-shaped frame (32) arranged at the execution end of the three-axis mover (31), a swing component (33) arranged in the n-shaped frame (32), a bidirectional linear module (34) arranged at the execution end of the swing component (33), and two impact detection components (35) symmetrically arranged at two moving ends of the bidirectional linear module (34).

2. The unattended auxiliary weighing device according to claim 1, characterized in that: The multi-weight sensor weighing device (22) comprises a first bracket (221) arranged on the base box (21), a plurality of first weight sensors (222) arranged on the top of the first bracket (221), and a second bracket (223) arranged on the top of the first weight sensors (222), wherein the top of the second bracket (223) contacts the bottom of the weighing plate (23); The single weight sensor weighing device (24) includes a positioning tube (241) whose bottom is connected to the top of the base box (21), a first support plate (242) slidably connected to the inner wall of the positioning tube (241), a second weight sensor (243) arranged on the top of the first support plate (242), a second support plate (244) arranged on the top of the second weight sensor (243), a plurality of inclined support rods (245) arranged on the top of the second support plate (244), and a guide column (246) arranged on the top of the inclined support rod (245) and passing through the weighing plate (23).

3. The unattended auxiliary weighing device according to claim 2, characterized in that: The lifting power component (25) comprises a ball head protrusion (251) provided at the bottom of the first support plate (242), a ramp plate (252) slidably connected to the inner wall of the base box (21) and abutting against the bottom of the ball head protrusion (251), and a driving cylinder (253) provided on the outer wall of the base box (21) and used to drive the ramp plate (252) to move.

4. The unattended auxiliary weighing device according to claim 1, characterized in that: It also includes a center of gravity posture support component (26) arranged at the bottom of the weighing plate (23) and the top of which is flush with the upper surface of the weighing plate (23), the center of gravity posture support component (26) including a plurality of positioning boxes (261) arranged at the bottom of the weighing plate (23) and the top of which is flush with the upper surface of the weighing plate (23), an electromagnetic block (262) arranged at the bottom of the inner wall of the positioning box (261), a magnetic block (263) slidably connected to the inner wall of the positioning box (261), a lifting plate (264) arranged at the top of the magnetic block (263) and the top of which passes through the positioning box (261), and an electromagnetic ring (265) arranged at the top of the inner wall of the positioning box (261) and sleeved on the outside of the lifting plate (264).

5. The unattended auxiliary weighing device according to claim 1, characterized in that: The swing component (33) comprises a semicircular slide rail (331) rotatably connected to the n-shaped frame (32), a first motor (332) disposed on the outer wall of the n-shaped frame (32) and used to drive the semicircular slide rail (331) to rotate, a toothed wall arc-shaped slider (333) slidably connected to the inner ring of the semicircular slide rail (331), a second motor (334) disposed on the outer wall of the semicircular slide rail (331), and a driving gear (335) disposed on the execution end of the second motor (334) and meshing with the toothed wall arc-shaped slider (333), wherein the outer wall of the toothed wall arc-shaped slider (333) is connected to the bidirectional linear module (34).

6. The unattended auxiliary weighing device according to claim 1, characterized in that: The impact detection component (35) comprises a detection box (351) arranged at the execution end of the bidirectional linear module (34), a groove (352) symmetrically arranged at the top and bottom of the inner wall of the detection box (351), three pressure sensors (353) arranged at the end of the inner wall and both sides of the inner wall of the detection box (351), an n-shaped sheet (354) located in the detection box (351) and having an outer wall connected to the plurality of pressure sensors (353), a force transmission block (355) slidably connected to the groove (352) and having an outer wall abutting against the n-shaped sheet (354), and a clamping plate (356) arranged on the outer wall of the force transmission block (355).

7. The unattended auxiliary weighing device according to claim 1, characterized in that: It also includes a discharge component (27) disposed on the base plate (10) and having an execution end extending to the upper part of the weighing plate (23), the discharge component (27) including a first linear module (271) disposed on the base plate (10), a second linear module (272) disposed at the execution end of the first linear module (271) and located on the weighing plate (23), a micro motor (273) disposed at the execution end of the second linear module (272) and located on the upper part of the second linear module (272), and a paddle (274) disposed at the execution end of the micro motor (273).

8. The unattended auxiliary weighing device according to claim 1, characterized in that: The weighing device (20) is provided with a first conveyor belt (11) at the feeding end, and a second conveyor belt (12) is provided at the discharging end of the weighing device (20). A switching conveying component (13) is provided on the base plate (10) and between two adjacent first conveyor belts (11). The switching conveying component (13) comprises a power motor (131) provided at the bottom of the base plate (10) and having an execution end that passes through the base plate (10) and extends to the upper part of the base plate (10), and a guide plate (132) provided at the execution end of the power motor (131).

9. A management system for unattended auxiliary weighing equipment according to any one of claims 1 to 8, comprising a control center (40), a cloud (50) and an administrator terminal (60) connected to the control center (40) via a network, characterized in that: The control center (40) comprises a traceability module (41), a center of gravity prediction module (42), a weight measurement module (43), a transmission module (44), an abnormal switching module (45) and a data recording module (46); the center of gravity prediction module (42) is used to trigger the center of gravity prediction device (30) and predict the center of gravity position of the express box according to the information fed back by the center of gravity prediction device (30), and place the center of gravity position of the express box at the top center position of the weighing device (20); the weight measurement module (43) is used to trigger the weighing device (20) to obtain the weight information of the express box.

10. The management system of unattended auxiliary weighing equipment according to claim 9, characterized in that: The center of gravity prediction module (42) comprises a camera unit (421), a vibration unit (422), a prediction unit (423) and a posture control unit (424); the camera unit (421) is used to receive the photo information of the express box taken by the camera on the outer wall of the bidirectional linear module (34) in the weighing device (20); the vibration unit (422) is used to receive the impact information of the express box when it is swinging measured by the impact detection component (35); the prediction unit (423) is used to receive the traceability information of the express box obtained from the traceability module (41) and predict the center of gravity position of the express box according to the photo information of the express box, the impact information and the traceability information of the express box; the posture control unit (424) is used to trigger the center of gravity posture support component (26) to perform posture support on the express box; The weight measurement module (43) comprises a multi-weighing unit (431), a single-weighing unit (432) and an error analysis unit (433); the multi-weighing unit (431) is used to obtain first weight information measured by a multi-weight sensor weighing device (22); the single-weighing unit (432) is used to obtain second weight information measured by a single-weight sensor weighing device (24); and the error analysis unit (433) analyzes the difference between the second weight information and the first weight information and determines whether the weighing is qualified or the center of gravity is readjusted or an error is reported based on the difference.

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