Logistics code scanning device and method

Abstract

The present invention relates to the field of code scanning technology, and specifically, to a logistics code scanning device and method, including a conveyor belt, a code scanner for scanning express codes is provided on the upper middle part of the conveyor belt, a first gantry is fixedly connected to the conveyor belt between the feeding end of the conveyor belt and the code scanner, and a brush is movably connected below the first gantry; a screening mechanism for screening express codes with abnormal code scanning is provided at the discharge end of the conveyor belt, and also includes a rotating mechanism for driving the screening mechanism to rotate from a first position to a second position, when the screening mechanism is in the first position, the screening mechanism is parallel to the conveyor belt; when the screening mechanism is in the second position, the screening mechanism is perpendicular to the conveyor belt, and the express codes with incorrect code scanning or not scanned can be classified and screened out, and this process does not require the entire equipment to be shut down, and subsequent code scanning work can also be continued, which greatly improves work efficiency.

Description

Technical Field

[0001] The present invention relates to the field of code scanning technology, and in particular to a logistics code scanning device and method. Background Art

[0002] At present, the importance of logistics in the economy is increasingly reflected. Modern warehouses need to scan the barcodes on express parcels before shipping them out, which is convenient for classified transportation of express parcels and can also prevent express parcels from being mixed up. However, the existing barcode scanning equipment is difficult to detect some express parcels that have been scanned incorrectly or have not been scanned. They will be mixed with the express parcels that have been scanned correctly, adding a burden to the staff. Even if they are discovered, the equipment needs to be shut down to remove the express parcels that have been scanned incorrectly or have not been scanned, and then the equipment needs to be turned on for scanning, which reduces work efficiency. Summary of the invention

[0003] The purpose of the present invention is to provide a logistics code scanning device and method to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A logistics code scanning device comprises a second infrared ranging sensor, a code scanner and a screening mechanism which are arranged in sequence above the conveying direction along the conveying direction, and also comprises a timer. When the second infrared ranging sensor detects that there is a courier below, the timer starts timing. When the code scanner scans the code correctly or incorrectly, or when the timing duration of the timer reaches a set value, the timer stops timing and is reset. When the code scanner scans the code incorrectly or the timing duration of the timer reaches a set value and the code scanner has not completed scanning, the screening mechanism works to sort out the courier. The screening mechanism is arranged at the discharge end of the conveyor belt. The code scanning device also comprises a rotating mechanism for driving the screening mechanism to rotate from a first position to a second position. When the screening mechanism is in the first position, the screening mechanism is parallel to the conveyor belt; when the screening mechanism is in the second position, the screening mechanism is perpendicular to the conveyor belt.

[0006] Preferably, the screening mechanism includes a rotating plate, two rollers rotatably connected to the two ends of the bottom of the rotating plate and a conveyor belt mounted on the two rollers, and a third motor for driving the rollers to rotate is fixedly connected to the top of the rotating plate near one end.

[0007] Preferably, the rotating mechanism includes an L-shaped support frame fixedly connected to one side of the conveyor belt, a rotating plate is rotatably connected to the bottom of the L-shaped support frame at one end away from the third motor, and a second motor for driving the rotating plate to rotate is fixedly connected to the top of the L-shaped support frame.

[0008] Preferably, a pressure sensor is installed on the roller; when the screening mechanism is in the second position, when the express moves to the conveyor belt position, the pressure sensor detects pressure and the third motor works; when the express moves away from the conveyor belt, the pressure sensor does not detect pressure, the third motor stops working, and the second motor works to drive the screening mechanism to rotate from the second position to the first position.

[0009] Preferably, a first gantry is fixedly connected to the conveyor belt between the feed end of the conveyor belt and the barcode scanner, and two first infrared ranging sensors for detecting the position of the express on the conveyor belt are provided on the side of the first gantry away from the barcode scanner. The two first infrared ranging sensors are respectively arranged on both sides of the conveyor belt, and an adjustment mechanism for adjusting the express to the middle of the conveyor belt is provided between the first infrared ranging sensor and the first gantry.

[0010] Preferably, a brush is movably connected under the first gantry; the adjustment mechanism includes a cylinder, a push plate and fixed plates symmetrically arranged on both sides of the conveyor belt, the fixed plate is fixedly connected to the conveyor belt, the push plate is arranged on the side where the two fixed plates are close to each other, and the cylinder is fixedly connected to the side of the fixed plate away from the push plate, and the cylinder drives the push plate to move to push the express.

[0011] Preferably, a lifting plate is movably connected below the first gantry, a brush is fixedly connected to the bottom of the lifting plate, an air duct is fixedly installed on one side of the lifting plate, a plurality of blowing pipes are fixedly connected to the bottom of the air duct, a blower is installed on the first gantry, and the blower and the air duct are connected by a telescopic air duct.

[0012] Preferably, the inner wall of the first gantry is provided with a vertically arranged slide groove, the slide groove is rotatably installed with a vertically arranged threaded rod, the threaded rod is threadedly connected with a lifting block, the lifting block is slidably connected to the slide groove, one end of the lifting plate is fixedly connected to the lifting block, and the first gantry is fixedly connected with a first motor for driving the threaded rod to rotate.

[0013] A logistics code scanning method specifically includes the following steps:

[0014] S1. Place the express with the barcode facing upwards at the discharge end of the conveyor belt. The express is transported forward and passes between the first infrared distance sensors on both sides of the conveyor belt. The two first infrared distance sensors detect the distance of the express respectively and transmit the signal to the controller. When the distance difference detected by the two first infrared distance sensors is greater than the preset value, the controller controls the cylinder at the first infrared distance sensor on the side with the smaller distance value to work, driving the push plate to move. When the express continues to be transported, the push plate pushes the express to the middle of the conveyor belt.

[0015] S2, the express is continuously transported to the bottom of the second infrared ranging sensor, the second infrared ranging sensor detects the height of the express, transmits a signal to the controller, the controller controls the first motor and the timer to work, the first motor drives the threaded rod to rotate, thereby driving the lifting block, the brush and the air guide pipe to rise and fall, so that the brush is placed on the top of the express, when the express continues to be transported, the brush can sweep away the dust on the barcode, and at the same time, the blower blows out air from the air blowing pipe, which can further blow away the dust on the barcode;

[0016] S3, express delivery continues:

[0017] When the barcode scanner correctly scans the express, it transmits the signal to the controller, which stops the timer and the express continues to be transported out from the discharge end of the conveyor belt.

[0018] When the barcode scanner scans the code incorrectly, it transmits a signal to the controller, controls the timer to stop working, and at the same time, the controller also controls the second motor to work, driving the rotating plate to rotate perpendicular to the conveyor belt. When the express continues to be transported to the conveyor belt position, the express squeezes the conveyor belt, and the pressure sensor detects the pressure and transmits the signal to the controller. The controller controls the third motor to rotate clockwise, driving the roller and the conveyor belt to rotate clockwise, and outputs the express from one side of the conveyor belt. At this time, the pressure sensor does not detect the pressure, and transmits the signal to the controller. The controller controls the second motor to work, and rotates the rotating plate in the opposite direction to be parallel to the conveyor belt.

[0019] When the timer reaches the set value, it means that the barcode scanner has scanned the express, and the timer transmits the signal to the controller. The controller controls the timer to stop working, and also controls the second motor to work, driving the turntable to rotate perpendicular to the conveyor belt. When the express continues to be transported to the conveyor belt position, the express squeezes the conveyor belt, and the pressure sensor detects the pressure and transmits the signal to the controller. The controller controls the third motor to rotate counterclockwise, driving the roller and the conveyor belt to rotate counterclockwise, and outputs the express from the other side of the conveyor belt. At this time, the pressure sensor does not detect the pressure, and then transmits the signal to the controller. The controller controls the second motor to work and rotate the turntable in the opposite direction parallel to the conveyor belt.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The logistics code scanning equipment and method, when the express is transported to the bottom of the second infrared ranging sensor, the second infrared ranging sensor transmits a signal to the controller, the controller controls the timer to work, the express continues to be transported on the conveyor belt and scanned by the scanner, when the scanner scans the code incorrectly or when the timer reaches the set value and the scanner still does not scan the code, the scanner transmits a signal to the controller, the controller controls the timer to stop working, and at the same time, the controller also controls the second motor to drive the rotating plate to rotate 90 degrees perpendicular to the conveyor belt. When the express continues to be transported to the conveyor belt position, the express that has scanned the code incorrectly or has not been scanned can be blocked and screened out.

[0022] 2. The logistics code scanning equipment and method, when the express with incorrect code scanning squeezes the conveyor belt, the pressure sensor detects the pressure and transmits the signal to the controller, the controller controls the third motor to rotate clockwise, drives the roller and the conveyor belt to rotate clockwise, and outputs the express from one side of the conveyor belt; when the express with unscanned code squeezes the conveyor belt, the pressure sensor detects the pressure and transmits the signal to the controller, the controller controls the third motor to rotate counterclockwise, drives the roller and the conveyor belt to rotate counterclockwise, and outputs the express from the other side of the conveyor belt. The express with incorrect code scanning and the express with unscanned code can be classified and transported, which is convenient for checking the reasons for incorrect code scanning. This process does not require the entire equipment to be shut down, and subsequent code scanning work can continue, which greatly improves work efficiency.

[0023] 3. For the logistics code scanning device and method, when the code is scanned incorrectly or the express delivery without code scanning is output from the conveyor belt, the pressure sensor does not detect the pressure at this time, and transmits the signal to the controller. The controller controls the second motor to rotate the turn plate 90 degrees in the opposite direction to be parallel to the conveyor belt, so as to facilitate the subsequent delivery of the express delivery with correct code scanning. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is one of the overall structural schematic diagrams of the present invention.

[0025] Figure 2 This is the second schematic diagram of the overall structure of the present invention.

[0026] Figure 3 It is a structural schematic diagram of the first gantry in the present invention.

[0027] Figure 4 It is a schematic cross-sectional structural diagram of the first gantry in the present invention.

[0028] Figure 5 It is a structural schematic diagram of the screening mechanism in the present invention.

[0029] The meanings of the numbers in the figure are as follows: 1. conveyor belt; 2. first infrared ranging sensor; 30. fixed plate; 31. cylinder; 32. push plate; 40. first gantry; 400. slide; 41. lifting plate; 410. brush; 42. lifting block; 43. threaded rod; 44. first motor; 45. air duct; 450. blow pipe; 46. telescopic air duct; 47. blower; 5. second infrared ranging sensor; 60. second gantry; 61. barcode scanner; 7. L-shaped support frame; 80. rotating plate; 81. conveyor belt; 82. roller; 83. second motor; 84. third motor; 9. support plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0033] The present invention provides a technical solution:

[0034] A logistics code scanning device, please refer to Figure 1-Figure 3, including a conveyor belt 1, a barcode scanner 61 for scanning express delivery is provided at the upper middle part of the conveyor belt 1, and also includes a second gantry 60 fixedly connected to the conveyor belt 1, and the barcode scanner 61 is fixedly installed on the second gantry 60 by bolts; a first gantry 40 is fixedly connected to the conveyor belt 1 between the feeding end of the conveyor belt 1 and the barcode scanner 61, and a brush 410 is movably connected below the first gantry 40; a lifting plate 41 is movably connected below the first gantry 40, and the brush 410 is fixedly connected to the bottom of the lifting plate 41. The brush 410 is made of silicone, which can prevent the brush from scratching the express delivery when it comes into contact with the express delivery for cleaning.

[0035] A second infrared ranging sensor 5, a barcode scanner 61 and a screening mechanism are arranged in sequence above the conveying direction, and also include a timer. When the second infrared ranging sensor 5 detects that there is a courier below, the timer starts timing. When the barcode scanner 61 scans the code correctly or incorrectly, or when the timing of the timer reaches a set value, the timer stops timing and is reset; when the barcode scanner 61 scans the code incorrectly or the timing of the timer reaches the set value and the barcode scanner has not completed scanning, the screening mechanism works to sort out the courier.

[0036] To further clean the dust on the express, please refer to Figure 3-Figure 4 A wind duct 45 is fixedly installed on one side of the lifting plate 41, and a plurality of blowing pipes 450 are fixedly connected to the bottom of the wind duct 45. A blower 47 is installed on the first gantry 40, and the blower 47 and the wind duct 45 are connected by a telescopic wind duct 46. The two ends of the wind duct 45 are closed, and a connecting end is opened on the side wall. One end of the telescopic wind duct 46 is connected to the connecting end of the wind duct 45 through a flange, and the other end of the telescopic wind duct 46 is connected to the air outlet end of the blower 47 through a flange. The dust on the express can be preliminarily cleaned by the brush 410, and the dust can be effectively blown away by blowing air from the blowing pipe 450 through the blower, thereby enhancing the cleaning effect and facilitating the subsequent barcode scanner 61 to scan and identify the barcode on the express.

[0037] In this embodiment, please refer to Figure 5 The screening mechanism includes a rotating plate 80, two rollers 82 rotatably connected to the two ends of the bottom of the rotating plate 80, and a conveyor belt 81 for connecting the two rollers 82. A third motor 84 for driving the rollers 82 to rotate is fixedly connected to the top of the rotating plate 80 near one end.

[0038] In this embodiment, please refer to Figure 5, and also includes a rotating mechanism for driving the screening mechanism to rotate from the first position to the second position, the rotating mechanism includes an L-shaped support frame 7 fixedly connected to one side of the conveyor belt 1, and the end of the rotating plate 80 away from the third motor 84 is rotatably connected to the bottom of the L-shaped support frame 7, and the top of the L-shaped support frame 7 is fixedly connected to a second motor 83 for driving the rotating plate 80 to rotate; when the screening mechanism is in the first position, the screening mechanism is parallel to the conveyor belt 1; when the screening mechanism is in the second position, the screening mechanism is perpendicular to the conveyor belt 1; during initial operation, the screening mechanism is in the first position.

[0039] In this embodiment, please refer to Figure 1-Figure 2 A second infrared ranging sensor 5 is fixedly connected to the first gantry 40 on one side close to the feeding end of the conveyor belt 1. The maximum ranging value of the second infrared ranging sensor 5 is just smaller than the distance from the second infrared ranging sensor 5 to the upper surface of the conveyor belt 1. When there is no express under the second infrared ranging sensor 5, the conveyor belt 1 will not interfere with the detection of the second infrared ranging sensor 5; the time it takes for the express to be transported from under the second infrared ranging sensor 5 to under the barcode scanner 61 is less than the set value.

[0040] In order to screen the express with abnormal code scanning, a pressure sensor is installed on the roller 82; when the screening mechanism is in the second position, when the express moves to the position of the conveyor belt 81, the third motor 84 works; when the express moves away from the conveyor belt 81, the third motor 84 stops working, and the second motor 83 works to drive the screening mechanism to rotate from the second position to the first position; the squeezing force of the conveyor belt 81 itself on the roller 82 is less than the minimum value of the pressure detected by the pressure sensor, and will not interfere with the pressure sensor.

[0041] See also Figure 1-Figure 2 A detection mechanism for detecting the position of the express on the conveyor belt 1 is provided on the side of the first gantry 40 away from the barcode scanner 61. The detection mechanism includes first infrared ranging sensors 2 symmetrically arranged on both sides of the conveyor belt 1. The maximum ranging value of the first infrared ranging sensor 2 is just smaller than the width of the conveyor belt 1, which can effectively avoid interference caused by the first infrared ranging sensor 2 when the staff walks by the two sides of the conveyor belt 1, thereby greatly improving the practicability of the device.

[0042] In order to facilitate the subsequent scanning of the express delivery; please refer to Figure 1-Figure 2An adjustment mechanism for adjusting the express to the middle of the conveyor belt 1 is provided between the detection mechanism and the first gantry 40; the adjustment mechanism includes a cylinder 31, a push plate 32 and fixed plates 30 symmetrically arranged on both sides of the conveyor belt 1, the fixed plates 30 are fixedly connected to the conveyor belt 1, the push plates 32 are arranged on the side where the two fixed plates 30 are close to each other, the cylinder 31 is fixedly connected to the side of the fixed plate 30 away from the push plate 32, and the cylinder 31 drives the push plate 32 to move and push the express; the cylinder 31 drives the push plate 32 to push the express to the middle of the conveyor belt, so that the express passes directly under the second infrared ranging sensor 5 and the barcode scanner 61, which is convenient for the express to be identified.

[0043] In order to facilitate the cleaning of express at different heights; please refer to Figure 3-Figure 4 The inner wall of the first gantry 40 is provided with a vertically arranged slide groove 400, and a vertically arranged threaded rod 43 is rotatably installed in the slide groove 400. A lifting block 42 is threadedly connected to the threaded rod 43, and the lifting block 42 is slidably connected to the slide groove 400. One end of the lifting plate 41 is fixedly connected to the lifting block 42, and a first motor 44 for driving the threaded rod 43 to rotate is fixedly connected to the first gantry 40; starting the first motor 44 can drive the threaded rod 43 to rotate, so that the lifting block 42 and the lifting plate 41 can be lifted and lowered, thereby driving the brush 410 and the blowing pipe to lift and lower, so that the bottom end of the brush 410 contacts the upper surface of the express, and the express will be cleaned by the brush 410 during transportation, and the wind blown out of the blowing pipe can effectively blow away the dust on the express.

[0044] A logistics code scanning method specifically includes the following steps:

[0045] S1. The staff puts the express with the barcode facing upwards on the discharge end of the conveyor belt 1. The express is transported forward and passes between the first infrared distance sensors 2 on both sides of the conveyor belt 1. The two first infrared distance sensors 2 respectively detect the distance of the express and transmit the signal to the controller. When the difference in the distance detected by the two first infrared distance sensors 2 is greater than the preset value, the controller controls the cylinder 31 at the first infrared distance sensor 2 on the side with the smaller distance value to work, driving the push plate 32 to move. When the express continues to be transported, the push plate 32 pushes the express to the middle of the conveyor belt 1, so as to facilitate the subsequent barcode scanner to scan and identify the express. When the staff puts the express in a biased position, the express can be adjusted to normal in time, which is convenient for the express to scan the code normally.

[0046] S2, the express is continuously transported to the bottom of the second infrared ranging sensor 5, the second infrared ranging sensor 5 detects the height of the express, transmits the signal to the controller, the controller controls the first motor 44 and the timer to work, the first motor 44 drives the threaded rod 43 to rotate, thereby driving the lifting block 42, the brush 410 and the air duct 45 to move up and down, so that the brush 410 is placed on the top of the express, and when the express continues to be transported, the brush 410 can sweep away the dust on the barcode; by adjusting the height of the brush 410, it is convenient to clean the express at different heights, and at the same time, the blower 47 blows air out from the blowing pipe 450, which can further blow away the dust on the barcode;

[0047] S3, express delivery continues:

[0048] When the barcode scanner 61 correctly scans the express, it transmits a signal to the controller, controls the timer to stop working, and the express continues to be transported out from the discharge end of the conveyor belt;

[0049] When the barcode scanner 61 scans the barcode incorrectly, the signal is transmitted to the controller to control the timer to stop working. At the same time, the controller also controls the second motor 83 to work, driving the rotating plate 80 to rotate 90 degrees to be perpendicular to the conveyor belt 1. When the express continues to be transported to the position of the conveyor belt 81, the express squeezes the conveyor belt 81. The pressure sensor detects the pressure and transmits the signal to the controller. The controller controls the third motor 84 to rotate clockwise, driving the roller 82 and the conveyor belt 81 to rotate clockwise, and the express is output from one side of the conveyor belt 81. At this time, the pressure sensor does not detect the pressure, and transmits the signal to the controller. The controller controls the second motor 83 to work, and rotates the rotating plate 80 90 degrees in the opposite direction to be parallel to the conveyor belt 1.

[0050] When the timer reaches the set value, it means that the barcode scanner 61 has scanned the express, and the timer transmits the signal to the controller. The controller controls the timer to stop working, and also controls the second motor 83 to work, driving the rotating plate 80 to rotate 90 degrees perpendicular to the conveyor belt 1. When the express continues to be transported to the position of the conveyor belt 81, the express squeezes the conveyor belt 81, and the pressure sensor detects the pressure and transmits the signal to the controller. The controller controls the third motor 84 to rotate counterclockwise, driving the roller 82 and the conveyor belt 81 to rotate counterclockwise, and the express is output from the other side of the conveyor belt 81. At this time, the pressure sensor does not detect the pressure, and then transmits the signal to the controller. The controller controls the second motor 83 to work, and the rotating plate 80 is rotated 90 degrees in the opposite direction to be parallel to the conveyor belt 1; the express with scanning error and the express without scanning can be classified and transported, which is convenient for checking the cause. The express on the side of the scanning error can be concentrated to check whether the barcode is damaged; the express on the side of the unscanned code can be concentrated to check whether the barcode is not affixed or the barcode is not placed upward, so that the cause of the abnormal scanning can be found more quickly, which greatly improves the work efficiency.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A logistics code scanning device, comprising a conveyor belt (1), characterized in that: A second infrared distance measuring sensor (5), a barcode scanner (61) and a screening mechanism are arranged in sequence above the conveying direction, and also include a timer. When the second infrared distance measuring sensor (5) detects that there is a parcel below, the timer starts timing. When the barcode scanner (61) scans the barcode correctly or incorrectly, or when the timer timing reaches a set value, the timer stops timing and is reset. When the barcode scanner (61) scans the barcode incorrectly or the timer timing reaches a set value and the barcode scanner has not completed scanning, the screening mechanism works to sort out the parcel. The screening mechanism is arranged at the discharge end of the conveyor belt (1). The barcode scanner also includes a rotating mechanism for driving the screening mechanism to rotate from a first position to a second position. When the screening mechanism is in the first position, the screening mechanism is parallel to the conveyor belt (1). When the screening mechanism is in the second position, The screening mechanism is perpendicular to the conveyor belt (1); the screening mechanism comprises a rotating plate (80), two rollers (82) rotatably connected to the two ends of the bottom of the rotating plate (80), and a conveyor belt (81) sleeved on the two rollers, and a third motor (84) for driving the rollers (82) to rotate is fixedly connected near one end of the top of the rotating plate (80); the rotating mechanism comprises an L-shaped support frame (7) fixedly connected to one side of the conveyor belt (1), an end of the rotating plate (80) away from the third motor (84) is rotatably connected to the bottom of the L-shaped support frame (7), and a second motor (83) for driving the rotating plate (80) to rotate is fixedly connected to the top of the L-shaped support frame (7); a pressure sensor is installed on the roller (82); when the screening mechanism is in the second position, when the express moves to the position of the conveyor belt (81), the pressure sensor detects pressure and the third motor (84) works; When the express moves away from the conveyor belt (81), the pressure sensor detects no pressure, the third motor (84) stops working, and the second motor (83) works to drive the screening mechanism to rotate from the second position to the first position; a first gantry (40) is fixedly connected to the conveyor belt (1) between the feed end of the conveyor belt (1) and the barcode scanner (61); two first infrared distance measuring sensors (2) for detecting the position of the express on the conveyor belt (1) are provided on the side of the first gantry (40) away from the barcode scanner (61); the two first infrared distance measuring sensors (2) are used to detect the position of the express on the conveyor belt (1). The sensors (2) are respectively arranged on both sides of the conveyor belt (1); an adjustment mechanism for adjusting the express to the middle of the conveyor belt (1) is arranged between the first infrared distance measuring sensor (2) and the first gantry (40); a brush (410) is movably connected below the first gantry (40); the adjustment mechanism comprises a cylinder (31), a push plate (32) and fixed plates (30) symmetrically arranged on both sides of the conveyor belt (1); the fixed plates (30) are fixedly connected to the conveyor belt (1); and the push plate (32) is arranged at one side of the two fixed plates (30) close to each other. The cylinder (31) is fixedly connected to the side of the fixed plate (30) away from the push plate (32), and the cylinder (31) drives the push plate (32) to move and push the express delivery; a lifting plate (41) is movably connected below the first gantry (40), a brush (410) is fixedly connected to the bottom of the lifting plate (41), an air guide pipe (45) is fixedly installed on one side of the lifting plate (41), and a plurality of blowing pipes (450) are fixedly connected to the bottom of the air guide pipe (45), and a blower (47) is installed on the first gantry (40), and the blower (47) and the guide pipe (45) are connected to each other. The air duct (45) is connected by a telescopic air duct (46); the inner wall of the first gantry (40) is provided with a vertically arranged slide groove (400), the slide groove (400) is rotatably mounted with a vertically arranged threaded rod (43), the threaded rod (43) is threadedly connected with a lifting block (42), the lifting block (42) is slidably connected to the slide groove (400), one end of the lifting plate (41) is fixedly connected to the lifting block (42), and the first gantry (40) is fixedly connected with a first motor (44) for driving the threaded rod (43) to rotate.

2. A logistics code scanning method, characterized by: The logistics code scanning device according to claim 1 is used, and specifically comprises the following steps: S1. Place the express with the barcode facing upwards at the discharge end of the conveyor belt (1). The express is transported forward and passes between the first infrared distance sensors (2) on both sides of the conveyor belt (1). The two first infrared distance sensors (2) respectively detect the distance of the express and transmit the signal to the controller. When the difference in the distance detected by the two first infrared distance sensors (2) is greater than a preset value, the controller controls the cylinder (31) at the first infrared distance sensor (2) on the side with the smaller distance value to work, driving the push plate (32) to move. When the express continues to be transported, the push plate (32) pushes the express to the middle of the conveyor belt (1); S2, the express is continuously transported to the bottom of the second infrared distance measuring sensor (5), the second infrared distance measuring sensor (5) detects the height of the express, and transmits a signal to the controller, the controller controls the first motor (44) and the timer to operate, the first motor (44) drives the threaded rod (43) to rotate, thereby driving the lifting block (42), the brush (410) and the air guide pipe (45) to move up and down, so that the brush (410) is placed on the top of the express, and when the express continues to be transported, the brush (410) sweeps away the dust on the barcode, and at the same time the blower (47) blows air out from the blowing pipe (450); S3, express delivery continues: When the barcode scanner (61) correctly scans the express, a signal is transmitted to the controller, which controls the timer to stop working, and the express continues to be conveyed out from the discharge end of the conveyor belt; When the barcode scanner (61) scans the barcode incorrectly, a signal is transmitted to the controller, and the control timer stops working. At the same time, the controller also controls the second motor (83) to work, driving the rotating plate (80) to rotate 90 degrees to be perpendicular to the conveyor belt (1). When the express continues to be transported to the position of the conveyor belt (81), the express squeezes the conveyor belt (81), and the pressure sensor detects the pressure and transmits the signal to the controller. The controller controls the third motor (84) to rotate clockwise, driving the roller (82) and the conveyor belt (81) to rotate clockwise, and the express is output from one side of the conveyor belt (81). The pressure sensor does not detect the pressure and transmits the signal to the controller. The controller controls the second motor (83) to work, and the rotating plate (80) is rotated 90 degrees in the opposite direction to be parallel to the conveyor belt (1). When the timer reaches the set value, it indicates that the barcode scanner (61) has scanned the express, and the timer transmits a signal to the controller. The controller controls the timer to stop working and also controls the second motor (83) to work, driving the rotating plate (80) to rotate 90 degrees to be perpendicular to the conveyor belt (1). When the express continues to be transported to the position of the conveyor belt (81), the express squeezes the conveyor belt (81). The pressure sensor detects pressure and transmits a signal to the controller. The controller controls the third motor (84) to rotate counterclockwise, driving the roller (82) and the conveyor belt (81) to rotate counterclockwise, and the express is output from the other side of the conveyor belt (81). The pressure sensor does not detect pressure and transmits a signal to the controller. The controller controls the second motor (83) to work, and rotates the rotating plate (80) 90 degrees in the opposite direction to be parallel to the conveyor belt (1).

Images