Visual detection device and detection method for logistics sorting system

Abstract

The invention discloses a visual detection device of a logistics sorting system and a detection method of the visual detection device of the logistics sorting system. Comprising a rack, two side plates fixedly connected with the rack, a plurality of conveying belts arranged between the two side plates, two control rollers used for driving the conveying belts and rotationally connected with the two ends of the side plates correspondingly, and a driving motor used for driving the conveying belts and fixedly connected with the rack. The camera mounting frame is mounted on one side of the side plate; the baffle plate is arranged in the middle of the conveying belt and is used for turning over an object; the upper surface and the periphery of the parcel are detected firstly, when logistics information cannot be obtained, the parcel is blocked by the baffle and turned over after posture adjustment in the conveying process, so that the lower surface of the parcel is effectively detected, the parcel is in a moving state all the time in the detection process, the parcel does not need to be stopped, and the detection efficiency is improved. Therefore, the detection speed is increased, and the efficiency of the sorting process is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of logistics sorting, and in particular relates to a visual detection device and a detection method for a logistics sorting system. Background Art

[0002] The existing logistics sorting system needs to inspect the parcels before sorting and classifying them, so as to enter the logistics information of the parcels into the system to facilitate subsequent sorting operations. However, the posture of the parcels is not uniform, and all sides of the parcels need to be inspected to avoid the accuracy of information acquisition. When the logistics information is located on the lower surface of the parcel, the parcel needs to be turned over. This process consumes extra time and reduces the sorting efficiency. Summary of the invention

[0003] In order to solve the above problems existing in the prior art, the present invention aims to provide a visual inspection device and inspection method for a logistics sorting system.

[0004] The technical solution adopted by the present invention is:

[0005] A visual inspection device and inspection method for a logistics sorting system, a visual inspection device for a logistics sorting system, comprising a frame, two side plates fixedly connected to the frame, a plurality of conveyor belts arranged between the two side plates, two control rollers for driving the conveyor belts and rotatably connected to the two ends of the side plates, a driving motor for driving the conveyor belts and fixedly connected to the frame, a camera mounting frame installed on one side of the side plates, and a baffle plate arranged in the middle of the conveyor belts and used for turning over objects;

[0006] The output shaft of the driving motor passes through and is rotatably connected to the frame. A driving roller is fixedly provided on the output shaft of the driving motor. The two control rollers and one driving roller jointly drive the conveyor belt. The side projection of the conveyor belt is an inverted triangle. The side projection of the baffle passes through the vertex of the triangle and is perpendicular to the bottom of the triangle.

[0007] As a preferred embodiment of the present invention, the two ends of the control roller are respectively rotatably set on a slider, a sliding groove is provided on the side where the two side plates are close to each other, the slider is slidably connected to the sliding groove, and the distance from the driving roller to the two control rollers is not equal.

[0008] As a preferred embodiment of the present invention, there are multiple baffles, and the multiple baffles are respectively located in the gaps between the multiple conveyor belts. The baffles are fixedly arranged on a limit frame, and fixing rods are fixedly arranged at both ends of the limit frame, and the fixing rods are fixedly connected to the frame.

[0009] As a preferred embodiment of the present invention, a floating frame is provided on one side of one of the side panels, and the floating frame is slidably connected to the frame. A control cylinder is provided on the side of the frame away from the floating frame, and the cylinder barrel of the control cylinder is fixedly connected to the frame. A connecting rod is fixedly provided on the piston rod of the frame, and the connecting rod is fixedly connected to the floating frame.

[0010] As a preferred embodiment of the present invention, two transmission rods are provided at one end of the floating frame, the two transmission rods are respectively hinged to the floating frame, and the ends of the two transmission rods away from the floating frame are respectively connected to control rods through a control sleeve, and the two control rods are respectively hinged to the two control rollers.

[0011] As a preferred embodiment of the present invention, the transmission rod has an opening at one end close to the floating frame, and the end of the transmission rod away from the floating frame is located in the control sleeve, the control sleeve is slidably connected to the transmission rod, and a shrinking ring is fixedly provided at one end of the control sleeve close to the floating frame, and a flange is fixedly provided at one end of the transmission rod away from the floating frame, and the flange and the shrinking ring cooperate with each other.

[0012] As a preferred embodiment of the present invention, one end of the control sleeve away from the floating frame is fixedly connected to the control rod, and a control spring is provided in the control sleeve at one end close to the control rod, one end of the control spring abuts against the inner wall of the control sleeve, and the other end of the control spring abuts against the transmission rod.

[0013] As a preferred embodiment of the present invention, it also includes a sliding plate, which is located on one side of the limiting frame, and a plurality of support rods are fixedly provided on the sliding plate. A support wheel is rotatably provided at one end of the support rod away from the sliding plate, and the plurality of support wheels correspond one-to-one to the plurality of conveyor belts, and the support wheels are used to carry the conveyor belts.

[0014] As a preferred embodiment of the present invention, a supporting plate is provided on one side of the sliding plate, the sliding plate is slidably connected to the supporting plate, the supporting plate is fixedly connected to the frame, a control motor is fixedly provided at one end of the supporting plate, the output shaft of the control motor passes through and is rotatably connected to the supporting plate, a screw rod is fixedly provided on the output shaft of the control motor, and the screw rod is threadedly matched with the sliding plate.

[0015] A visual inspection method for a logistics sorting system comprises the following steps:

[0016] S1, loading; using the conveying equipment, conveying the package of suitable size to the conveyor belt 13, and starting the driving motor to convey it further downstream;

[0017] S2, initial inspection; the camera installed on the camera mounting frame obtains the label information on the upper surface and four sides of the package, if the information is successfully obtained, execute step S5, if the information is not obtained, execute step S3;

[0018] S3, dynamic flipping; maintaining the rotating state of the conveyor belt, changing the conveyor belt to a relaxed state, after the package in the moving state presses down the conveyor belt, it is forced to flip at the moment it touches the baffle, and after the package flips, the conveyor belt is restored to a taut state;

[0019] S4, re-inspection; control the conveyor belt to convey in the reverse direction, and use the camera installed on the camera mounting frame to obtain the label information on the upper surface and four sides of the package again. If the information is successfully obtained, execute step S5; if the information is not obtained, turn to manual inspection;

[0020] S5, unloading; using the conveyor belt to convey the parcel with the obtained logistics information to the next sorting process.

[0021] The beneficial effects of the present invention are as follows: as a visual inspection device and inspection method for a logistics sorting system, the present invention first inspects the upper surface and surrounding areas of a package. When the logistics information cannot be obtained, the package is adjusted in posture during transportation, blocked by a baffle, and flipped over, thereby effectively inspecting the lower surface of the package. During the inspection process, the package is always in a moving state and does not need to be stopped, thereby improving the inspection speed and the efficiency of the sorting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 The present invention Figure 1 A schematic diagram of the front view structure of

[0025] Figure 3 The present invention Figure 1 Schematic diagram of the structure of the conveyor belt after it is hidden;

[0026] Figure 4 The present invention Figure 3 Schematic diagram of the structure after the rack is hidden;

[0027] Figure 5 The present invention Figure 4 Schematic diagram of the baffle structure;

[0028] Figure 6 The present invention Figure 4 Schematic diagram of the support wheel structure;

[0029] Figure 7 The present invention Figure 4 A schematic diagram of the cross-sectional structure of a control sleeve;

[0030] Figure 8 It is a schematic diagram of the dynamic flipping process of the package of the present invention. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0033] Combine the following Figure 1-8 The specific implementation mode of the present invention is described as follows: a visual inspection device for a logistics sorting system comprises a frame 18, two side panels 14 fixedly connected to the frame 18, a plurality of conveyor belts 13 arranged between the two side panels 14, two control rollers 12 for driving the conveyor belts 13 and rotatably connected to the two ends of the side panels 14, a driving motor 16 for driving the conveyor belts 13 and fixedly connected to the frame 18, a camera mounting frame 11 installed on one side of the side panel 14, and a baffle 20 arranged in the middle of the conveyor belt 13 and used for flipping objects; during the package conveying process, after the package is adjusted in posture at a certain speed, it is blocked by the baffle 20 and flipped, so that the logistics information of the package can be prevented from being pressed underneath and unable to be identified.

[0034] The output shaft of the driving motor 16 passes through and is rotatably connected to the frame 18. A driving roller is fixed on the output shaft of the driving motor 16. The two control rollers 12 and one driving roller jointly drive the conveyor belt 13. The side projection of the conveyor belt 13 is an inverted triangle. The side projection of the baffle 20 passes through the vertex of the triangle and is perpendicular to the bottom of the triangle. The two control rollers 12, the driving roller and the conveyor belt 13 cooperate to make the conveyor belt 13 run in a triangle.

[0035] Advantageously, the two ends of the control roller 12 are rotatably arranged on a slider, and a slide groove 21 is provided on the side where the two side plates 14 are close to each other. The slider is slidably connected to the slide groove 21, and the distances from the drive roller to the two control rollers 12 are not equal. The position of the control roller 12 can be changed, and the state of the conveyor belt 13 can be changed by changing the position of the control roller 12. When the conveyor belt 13 is in a relaxed state, the package can press down the conveyor belt 13, so that the conveying area above the conveyor belt 13 is bent, but it still maintains a relatively tight state, and can still be effectively conveyed.

[0036] Advantageously, there are a plurality of baffles 20, and the plurality of baffles 20 are respectively located in the gaps between the plurality of conveyor belts 13. The baffles 20 are fixedly arranged on a limiting frame 27, and fixing rods 26 are fixedly arranged at both ends of the limiting frame 27, and the fixing rods 26 are fixedly connected to the frame 18. The baffles 20 and the conveyor belts 13 are staggered, and the baffles 20 will be exposed after the conveyor belts 13 are pressed down.

[0037] Advantageously, a floating frame 15 is provided on one side of one of the side panels 14, and the floating frame 15 is slidably connected to the frame 18. A control cylinder 17 is provided on the side of the frame 18 away from the floating frame 15, and the cylinder barrel of the control cylinder 17 is fixedly connected to the frame 18. A connecting rod 19 is fixedly provided on the piston rod of the frame 18, and the connecting rod 19 is fixedly connected to the floating frame 15.

[0038] Advantageously, two transmission rods 25 are provided at one end of the floating frame 15, and the two transmission rods 25 are respectively hinged to the floating frame 15, and the ends of the two transmission rods 25 away from the floating frame 15 are respectively connected to the control rod 23 through a control sleeve 24, and the two control rods 23 are respectively hinged to the two control rollers 12. The control rollers 12 on both sides are changed in position by controlling the lifting and lowering of the floating frame 15.

[0039] Advantageously, the transmission rod 25 has an opening at one end close to the floating frame 15, and the end of the transmission rod 25 away from the floating frame 15 is located in the control sleeve 24, the control sleeve 24 is slidably connected to the transmission rod 25, and the control sleeve 24 is fixedly provided with a shrinking ring 34 at one end close to the floating frame 15, and the transmission rod 25 is fixedly provided with a flange 33 at one end away from the floating frame 15, and the flange 33 cooperates with the shrinking ring 34.

[0040] Advantageously, one end of the control sleeve 24 away from the floating frame 15 is fixedly connected to the control rod 23, and a control spring 32 is provided in the control sleeve 24 at one end close to the control rod 23, one end of the control spring 32 abuts against the inner wall of the control sleeve 24, and the other end of the control spring 32 abuts against the transmission rod 25. When the transmission rod 25 is horizontal, the control spring 32 is in a compressed state, so that the control rollers 12 on both sides tend to move away from each other, thereby tightening the conveyor belt 13. When the control spring 32 becomes a normal state, it loses its tightening effect on 13, and continues to stretch the spring 32. Within a certain range, the spring 32 is almost not deformed, but the control rollers 12 on both sides will move closer to each other.

[0041] Advantageously, it further comprises a sliding plate 29, the sliding plate 29 being located at one side of the limiting frame 27, a plurality of support rods 28 being fixedly disposed on the sliding plate 29, a support wheel 22 being rotatably disposed at one end of the support rod 28 away from the sliding plate 29, the plurality of support wheels 22 corresponding to the plurality of conveyor belts 13 one by one, and the support wheel 22 being used to carry the conveyor belts 13. The support wheel 22 can support the middle position of the conveyor belt 13 to prevent the package from being blocked by the baffle 20 when the conveyor belt 13 is not pressed down.

[0042] Advantageously, a bearing plate 30 is provided on one side of the sliding plate 29, the sliding plate 29 is slidably connected to the bearing plate 30, the bearing plate 30 is fixedly connected to the frame 18, a control motor 31 is fixedly provided at one end of the bearing plate 30, the output shaft of the control motor 31 penetrates and is rotatably connected to the bearing plate 30, a screw is fixedly provided on the output shaft of the control motor 31, and the screw is threadedly matched with the sliding plate 29. The support wheel 22 is controlled to give way by the screw, thereby ensuring that the conveyor belt 13 can be smoothly pressed down.

[0043] A visual inspection method for a logistics sorting system comprises the following steps:

[0044] S1, loading; using the conveying equipment, conveying the package of suitable size to the conveyor belt 13, starting the drive motor 16 to convey it further downstream;

[0045] S2, initial inspection; the camera installed on the camera mounting frame 11 obtains the label information on the upper surface and four sides of the package, if the information is successfully obtained, step S5 is executed, if the information is not obtained, step S3 is executed;

[0046] S3, dynamic flipping; maintaining the rotating state of the conveyor belt 13, changing the conveyor belt 13 to a relaxed state, after the package in the moving state presses down the conveyor belt 13, it is forced to flip at the moment of touching the baffle 20, and after the package flips, the conveyor belt 13 is restored to a taut state;

[0047] S4, re-inspection; control the conveyor belt 13 to convey in the reverse direction, and use the camera installed on the camera mounting frame 11 again to obtain the label information on the upper surface and four sides of the package. If the information is successfully obtained, execute step S5; if the information is not obtained, turn to manual inspection;

[0048] S5, unloading; using the conveyor belt 13 to convey the parcels with the obtained logistics information to the next sorting process.

[0049] Working principle of the present invention:

[0050] In the initial state, the control spring 32 is in a compressed state, the transmission rod 25 is in a horizontal state, and the two control rollers 12 tend to move away from each other, so that the conveyor belt 13 is in a taut state. The logistics package is located upstream of the conveyor belt 13 and is transferred to the conveyor belt 13 by a conveying device such as a conveyor belt.

[0051] After the driving motor 16 is started, it controls the driving roller to rotate, and the driving roller drives the conveyor belt 13 to rotate. The two control rollers 12 rotate synchronously, and the package approaches the camera mounting frame 11. During the movement of the package, the camera on the camera mounting frame 11 shoots the upper surface and four sides of the package to obtain possible effective information, and feeds it back to the data processing center for identification. If the logistics information of the package is successfully obtained, the driving motor 16 does not change its operating state, and directly transports the package downstream to enter the next sorting process. According to the size, weight, category and region recorded in the logistics information on the package, the package is transported to the designated area for centralized management;

[0052] If the logistics information of the package is not successfully obtained in the above steps, during the movement of the package, the control motor 31 and the control cylinder 17 are started at the same time. The control motor 31 starts to control its output shaft to rotate, driving the screw rod to rotate together, and the threaded joint controls the sliding plate 29 to slide relative to the load-bearing plate 30. The support rod 28 and the support wheel 22 move with the sliding plate 29. The support wheel 22 no longer contacts the conveyor belt 13. The gap between the support wheel 22 and the conveyor belt 13 is aligned, and the middle of the conveyor belt 13 loses the load-bearing function of the support wheel 22. While the support wheel 22 moves, the control cylinder 17 controls its piston rod to extend, and drives the floating frame 15 to slide through the connecting rod 19. The floating frame 15 moves downward, and the transmission rods 25 on both sides are forced to tilt, and the transmission rod 25 and the control sleeve 24 slide. The control spring 3 2 gradually returns to a normal state; when the support wheel 22 is just aligned with the gap between the conveyor belts 13, the control spring 32 returns to a normal state, and at this time the floating frame 15 continues to move downward. If the control sleeve 24 does not move, the control spring 32 will be stretched. Since the control spring 32 has a tendency to always maintain its normal state, when one end of the control rod 23 is allowed to slide, the movement of the transmission rod 25 will drive the control sleeve 24 to move together, thereby not stretching the control spring 32. The control rod 23 moves with the control sleeve 24, driving the control rollers 12 on both sides to move closer to the middle, and the conveyor belt 13 loses the limits at both ends. At the same time, the conveyor belt 13 is pressed down, and the baffle 20 is exposed from the gap of the conveyor belt 13. The conveyor belt 13 maintains its conveying state, and the package maintains its state of moving downstream, as shown in the attached figure. Figure 8 As shown, it is forced to flip under the action of inertia; then the control cylinder 17 controls the floating frame 15 to reset, and the conveyor belt 13 is reset to make the upper side of the conveyor belt 13 horizontal and taut.

[0053] The flipped package can be reversed by controlling the drive motor 16 to return to the upstream and be inspected by the camera at the camera mounting bracket 11. Another camera can also be installed downstream for inspection to inspect the target package again and obtain its logistics information. If the information is successfully obtained, it will flow to the designated area downstream. If the information fails, that is, after two scans, the package will be marked and flow to the manual inspection area downstream for manual inspection.

[0054] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A visual inspection device for a logistics sorting system, characterized in that: A visual inspection device for a logistics sorting system, comprising a frame, two side plates fixedly connected to the frame, a plurality of conveyor belts arranged between the two side plates, two control rollers for driving the conveyor belts and rotatably connected to the two ends of the side plates, a driving motor for driving the conveyor belts and fixedly connected to the frame, a camera mounting frame installed on one side of the side plates, and a baffle plate arranged in the middle of the conveyor belts and used to flip objects; The output shaft of the driving motor passes through and is rotatably connected to the frame. A driving roller is fixedly provided on the output shaft of the driving motor. The two control rollers and one driving roller jointly drive the conveyor belt. The side projection of the conveyor belt is an inverted triangle. The side projection of the baffle passes through the vertex of the triangle and is perpendicular to the bottom of the triangle.

2. The visual inspection device for a logistics sorting system according to claim 1, characterized in that: The two ends of the control roller are rotatably arranged on a slider respectively, a slide groove is arranged on the side where the two side plates are close to each other, the slider is slidably connected with the slide groove, and the distance from the driving roller to the two control rollers is not equal.

3. The visual inspection device for a logistics sorting system according to claim 2, characterized in that: There are multiple baffles, and the multiple baffles are respectively located in the gaps between the multiple conveyor belts. The baffles are fixedly arranged on a limiting frame, and fixing rods are fixedly arranged at both ends of the limiting frame, and the fixing rods are fixedly connected to the frame.

4. The visual inspection device for a logistics sorting system according to claim 1, characterized in that: A floating frame is provided on one side of one of the side panels, and the floating frame is slidably connected to the frame. A control cylinder is provided on the side of the frame away from the floating frame, and the cylinder barrel of the control cylinder is fixedly connected to the frame. A connecting rod is fixedly provided on the piston rod of the frame, and the connecting rod is fixedly connected to the floating frame.

5. The visual inspection device for a logistics sorting system according to claim 4, characterized in that: Two transmission rods are provided at one end of the floating frame, and the two transmission rods are respectively hinged to the floating frame. One end of the two transmission rods away from the floating frame is connected to the control rod through a control sleeve, and the two control rods are respectively hinged to the two control rollers.

6. The visual inspection device for a logistics sorting system according to claim 5, characterized in that: The transmission rod has an opening at one end close to the floating frame, and the transmission rod has an end away from the floating frame located in the control sleeve. The control sleeve is slidably connected to the transmission rod, and a shrinking ring is fixedly provided at one end of the control sleeve close to the floating frame, and a flange is fixedly provided at one end of the transmission rod away from the floating frame. The flange cooperates with the shrinking ring.

7. A visual inspection device for a logistics sorting system according to claim 6, characterized in that: One end of the control sleeve away from the floating frame is fixedly connected to the control rod, and a control spring is provided in the control sleeve at one end close to the control rod. One end of the control spring abuts against the inner wall of the control sleeve, and the other end of the control spring abuts against the transmission rod.

8. The visual inspection device for a logistics sorting system according to claim 3, characterized in that: It also includes a sliding plate, which is located on one side of the limiting frame. A plurality of support rods are fixedly provided on the sliding plate. A support wheel is rotatably provided at one end of the support rod away from the sliding plate. The plurality of support wheels correspond one-to-one to the plurality of conveyor belts, and the support wheel is used to carry the conveyor belts.

9. The visual inspection device for a logistics sorting system according to claim 8, characterized in that: A supporting plate is provided on one side of the sliding plate, the sliding plate is slidably connected to the supporting plate, the supporting plate is fixedly connected to the frame, a control motor is fixedly provided at one end of the supporting plate, the output shaft of the control motor passes through and is rotatably connected to the supporting plate, a screw rod is fixedly provided on the output shaft of the control motor, and the screw rod is threadedly matched with the sliding plate.

10. A visual inspection method for a logistics sorting system, using a visual inspection device for a logistics sorting system as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1, loading; using the conveying equipment, conveying the package of suitable size to the conveyor belt 13, and starting the driving motor to convey it further downstream; S2, initial inspection; the camera installed on the camera mounting frame obtains the label information on the upper surface and four sides of the package, if the information is successfully obtained, execute step S5, if the information is not obtained, execute step S3; S3, dynamic flipping; maintaining the rotating state of the conveyor belt, changing the conveyor belt to a relaxed state, after the package in the moving state presses down the conveyor belt, it is forced to flip at the moment it touches the baffle, and after the package flips, the conveyor belt is restored to a taut state; S4, re-inspection; control the conveyor belt to convey in the reverse direction, and use the camera installed on the camera mounting frame to obtain the label information on the upper surface and four sides of the package again. If the information is successfully obtained, execute step S5; if the information is not obtained, turn to manual inspection; S5, cutting; The conveyor belt is used to convey the parcel with the obtained logistics information to the next sorting process.

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