CN112875195B

CN112875195B - Logistics conveying device

Info

Publication number: CN112875195B
Application number: CN202110151523.6A
Authority: CN
Inventors: 程凤菊
Original assignee: Qingdao Huanghai University
Current assignee: Qingdao Huanghai University
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2022-04-26
Anticipated expiration: 2041-02-03
Also published as: CN112875195A

Abstract

The utility model provides a commodity circulation conveyer, relates to the commodity circulation technical field in the international trade, including delivery device, conveyer body, letter sorting robot and freight car, delivery device convey the express delivery packing box for the conveyer body, the conveyer body on be equipped with packing box size intelligent monitoring device, freight car on be equipped with the open car hopper in upper end, the car hopper passes through the baffle and separates into a plurality of transport hoppers, letter sorting robot classify the packing box according to the overall dimension to each transport in fighting. The invention provides a logistics conveying device which can carry out intelligent sorting according to the size of a packaging box in the process of conveying express packaging boxes.

Description

Logistics conveying device

Technical Field

The invention relates to the technical field of logistics devices in international trade, in particular to a logistics conveying device.

Background

The Chinese logistic term standard defines logistics as: logistics is a process of organically combining functions such as transportation, storage, loading, unloading, transportation, packaging, distribution, information processing and the like according to actual needs to meet user requirements in the process of physically flowing articles from a supply place to a receiving place.

Get into logistics storage's express packaging case, need just can deposit in order through the pile up neatly, however, the packing box is not of uniform size, if can not classify according to the size of packing box, big or small box mixes when then can lead to the pile up neatly and puts, is unfavorable for categorised the seeking promptly, is unfavorable for the stability of pile up neatly again, and must lead to the efficiency reduction of pile up neatly.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a logistics conveying device which can carry out intelligent sorting according to the size of a packaging box in the process of conveying express packaging boxes.

In order to solve the problems, the technical scheme of the invention is as follows:

the utility model provides a commodity circulation conveyer, includes cargo handling device, conveyer body, letter sorting robot and freight dolly, cargo handling device with express delivery packing box delivery for the conveyer body, the conveyer body on be equipped with packing box size intelligent monitoring device, freight dolly on be equipped with the open car hopper in upper end, the car hopper passes through the baffle and separates into a plurality of transport hoppers, letter sorting robot classify the packing box according to the overall dimension to each transport in fighting.

Preferably, the conveying device body further comprises a conveying belt device, the conveying belt device comprises a driving roller, a driven roller, a conveying belt in transmission connection between the driving roller and the driven roller, cross beams for supporting the driving roller and the driven roller, a supporting plate for supporting the cross beams, and a stepping motor for driving the driving roller, the cross beams are provided with 2 rollers which are respectively positioned at the front side and the rear side of the driving roller and the driven roller, two ends of a roller shaft of the driving roller and two ends of a roller shaft of the driven roller are respectively in rotation connection with the end parts of the cross beams at the front side and the rear side, the supporting plates are provided with 4 rollers which are respectively arranged below the end parts of the cross beams at the front side and the rear side, the upper ends of the supporting plates are fixedly connected with the lower ends of the cross beams, the lower ends of the supporting plates are abutted against the ground, the stepping motor is fixedly arranged at the outer side of the supporting plate at one side of the driving roller and is in transmission connection with the roller shaft of the driving roller through the conveying belt, the conveying device is provided with a discharge hopper, and the packing box is conveyed to the input end of the upper surface of the conveying belt through the discharge hopper.

Preferably, the intelligent packing box size monitoring device comprises a photoelectric sensor arranged on one side of an input end on the upper surface of the conveying belt, a controller fixedly arranged on the outer surface of the beam, and a monitor arranged on the rear side of the middle part of the conveying belt, the sorting robot is positioned on the outer side of an output end on the upper surface of the conveying belt, the photoelectric sensor is connected with the controller through a lead signal, the controller is respectively electrically connected with the stepping motor and the monitor, when the photoelectric sensor detects a signal of a packing box, the controller is configured to control the rotation of the stepping motor to convey the packing box to the monitor and stop, the monitor detects the size of the packing box and transmits the detection result to the controller, and the controller transmits the calculated size of the packing box to the sorting robot through a software program and starts the stepping motor, the detected packing cases are moved to one side of the sorting robot, and the sorting robot sorts the packing cases into corresponding conveying hoppers.

Preferably, the packing box is conveyed to the middle part of the upper surface of the conveying belt, and when the detection conveying belt is started again, the discharge hopper conveys another packing box to the starting end of the upper surface of the conveying belt; the monitor include riser, electronic jar, fixed plate, detection head, the riser locate the rear side at conveyer belt middle part, and the lower extreme of riser offsets with ground through the base, the height that highly is higher than the conveyer belt upper surface of riser, electronic jar along vertical setting, and the stiff end of electronic jar passes through the connecting piece and fixes with the front surface upper portion of riser, the flexible end downwardly extending of electronic jar and with fixed plate fixed connection, the fixed plate set up and relative with the upper surface of conveyer belt along the level, the detection head be matrix arrangement in the lower surface of fixed plate, controller and electronic jar electric connection.

Preferably, the detection head comprises a concave cavity arranged on the lower surface of the fixed plate, a pressure sensor embedded at the bottom in the concave cavity, a vertical pipe fixedly connected at the opening of the concave cavity, and a slide rod slidably connected in the vertical pipe, a spring seat is fixedly arranged on the outer wall surface of the cavity surrounding the vertical pipe, the lower end of the slide rod extends out of the lower end of the vertical pipe, a pressing plate is fixedly connected with the lower end of the slide rod, the upper surface of the pressure plate is also provided with a sleeve, the lower end of the sleeve is fixedly connected with the upper surface of the pressure plate, the inner surface of the sleeve is connected with the outer surface of the vertical pipe in a sliding way, a spring is connected between the upper end of the sleeve and the lower end of the spring seat, when the spring naturally extends, the upper end of the sliding rod is in contact with the pressure sensor, when the pressing plate is pressed upwards, the spring is compressed and contracted, and the upper end of the sliding rod is extruded with the pressure sensor; the pressure sensors on the detection heads arranged in a matrix are provided with digital numbers representing relative positions and are in signal connection with the controller through leads.

Preferably, the front surface of riser along vertically be equipped with the scale mark that is used for the flexible end of mark electronic jar from the extended distance of initial position, the bottom of scale mark flushes with the upper surface of conveyer belt, and the top flushes with the initial position of flexible end, and the bottom mark of scale mark is 0, the top mark is the height of flexible end initial position.

Preferably, the distance between adjacent detection heads is smaller than the length and the width of the top end of the minimum-size packing box, and the matrix width of the detection heads is wider than the width of the conveying belt.

Preferably, a supporting plate is further arranged below the middle part of the conveying belt above the conveying belt, the front end and the rear end of the supporting plate are fixedly connected with the upper end of the cross beam through a connecting plate, and the upper surface of the supporting plate is in sliding connection or in clearance fit with the lower surface of the conveying belt.

Preferably, the packing boxes are classified according to the length and the width of the top end of the box body and the height of the box body, and set size errors are allowed when the packing boxes are classified.

The logistics conveying device has the following beneficial effects: the invention can realize the detection of the three-dimensional size of the packing box and sort according to the detection result, thereby enabling the packing box to be classified according to the size of the packing box, facilitating the subsequent stacking process and improving the stacking efficiency, and facilitating the transportation and the searching of the express mails of the same attribution by classifying the sizes.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2, a partial enlarged view of the invention at A;

FIG. 3, a partial enlarged view of the invention at B;

FIG. 4 is a side view of the riser, electric cylinder, and sensing head of the present invention;

FIG. 5 is a bottom view of the test head of the present invention;

FIG. 6 is a top plan view of the hopper of the freight car of the present invention;

1: go out hopper, 2: drive roll, 3: driven roller, 4: sorting robot, 5: freight car, 6: track, 7: ground surface, 8: cross member, 9: connecting plate, 10: a support plate; 11: support plate, 12: conveyor belt, 13: packing case, 14: riser, 15: scale line, 16: electric cylinder, 17: connector, 18: stepping motor, 19: drive belt, 20: a fixing plate; 21: cavity, 22: pressure sensor, 23: spring seat, 24: spring, 25: standpipe, 26: slide rod, 27: sleeve, 28: a pressing plate, 29: photosensor, 30: partition, 31, transport bucket, 32: base, 33, detection head, 34: the compressed area is indicated.

Detailed Description

In the following, embodiments of the present invention are described in detail in a stepwise manner, which is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are only used for describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, the present invention is not to be construed as being limited thereto.

In one embodiment, the present invention is a logistics conveying apparatus, as shown in fig. 1-6: including delivery device (not drawn in the figure, the simplest delivery device can be understood as the freight train that is equipped with the packing box), conveyer body, letter sorting robot 4 and freight car 5, delivery device convey the packing box of express delivery for the conveyer body, the conveyer body on be equipped with packing box size intelligent monitoring device, freight car 5 on be equipped with the open car hopper in upper end, the car hopper passes through baffle 30 and separates into a plurality of transport fill 31, letter sorting robot 4 classify the packing box according to the shape and size and to each transport in fighting 31. As shown in fig. 6, the freight car is preferably a tram.

In a further embodiment, as shown in fig. 1 and 4, the conveyor body further comprises a conveyor belt device, the conveyor belt device comprises a driving roller 2, a driven roller 3, a conveyor belt 12 in transmission connection between the driving roller and the driven roller, a cross beam 8 for supporting the driving roller and the driven roller, a supporting plate 11 for supporting the cross beam 8, and a stepping motor 18 for driving the driving roller, the cross beam 8 is provided with 2 cross beams 8 respectively located at the front and rear sides of the driving roller and the driven roller, two ends of a roller shaft of the driving roller and the driven roller are respectively in rotation connection with the ends of the cross beam 8 at the front and rear sides, the supporting plate 11 is provided with 4 supporting plates respectively located below the ends of the cross beam 8 at the front and rear sides, the upper end of the supporting plate 11 is fixedly connected with the lower end of the cross beam 8, the lower end of the supporting plate 11 is abutted against the ground 7, the stepping motor 18 is fixedly installed at the outer side of the supporting plate 11 at one side of the driving roller, and is connected with the roll shaft transmission of the driving roll through a transmission belt 19, the delivery device is provided with a discharge hopper 1, and the packing box 13 is conveyed to the input end of the upper surface of the conveying belt 12 through the discharge hopper 1.

In a further embodiment, as shown in fig. 1-5, the intelligent packing box size monitoring device includes a photoelectric sensor 29 disposed on one side of the input end of the upper surface of the conveying belt 12, a controller (not shown in the figures, the controller may be a touch screen computer system, a PLC controller, a control circuit board) fixedly disposed on the outer surface of the cross beam 8, and a monitor disposed at the rear side of the middle portion of the conveying belt 12, the sorting robot 4 is located outside the output end of the upper surface of the conveying belt 12, the photoelectric sensor 29 is connected to the controller through a wire signal, the controller is respectively electrically connected to the stepping motor 18 and the monitor, when the photoelectric sensor 29 detects a signal of a packing box, the controller is configured to control the rotation of the stepping motor 18 to convey the packing box to the monitor and stop, the monitor detects the size of the packing box, the detection result is transmitted to a controller, the controller sends the calculated size of the packaging box to a sorting robot through a software program, a stepping motor 18 is started, the detected packaging box moves to one side of the sorting robot, and the sorting robot sorts the packaging box into a corresponding conveying hopper 31; the sorting robot is a prior art and is not described herein.

In a further embodiment, as shown in fig. 1-5, when the packaging box is conveyed to the middle of the upper surface of the conveyor belt 12 and is started again by the detection conveyor belt, the discharge hopper 1 conveys another packaging box to the starting end of the upper surface of the conveyor belt; the monitor include riser 14, electronic jar 16, fixed plate 20, detect head 33, riser 14 locate the rear side at conveyer belt middle part, and the lower extreme of riser 14 offsets with ground 7 through base 32, the height that highly is higher than the conveyer belt upper surface of riser 14, electronic jar 16 along vertical setting, and the stiff end of electronic jar 16 passes through connecting piece 17 and the front surface upper portion of riser fixed, electronic jar 16's flexible end downwardly extending and with fixed plate 20 fixed connection, fixed plate 20 along the level set up and relative with the upper surface of conveyer belt, detect head 33 be the lower surface of matrix arrangement in fixed plate 20, controller and electronic jar 16 electric connection.

In a further embodiment, as shown in fig. 2 and 3, the detecting head 33 includes a cavity 21 disposed on the lower surface of the fixing plate, a pressure sensor 22 embedded at the bottom of the cavity 21, a vertical tube 25 fixedly connected to the opening of the cavity, and a slide rod 26 slidably connected to the vertical tube 25, a spring seat 23 is further fixedly disposed around the outer wall surface of the vertical tube outside the opening edge of the cavity (the spring seat 23 may be fixedly connected to both the vertical tube and the fixing plate), the lower end of the slide rod 26 extends out of the lower end of the vertical tube, a pressing plate 28 is fixedly connected to the lower end of the slide rod, a sleeve 27 is further disposed on the upper surface of the pressing plate 28, the lower end of the sleeve 27 is fixedly connected to the upper surface of the pressing plate, the inner surface of the sleeve 27 is slidably connected to the outer surface of the vertical tube 25, a spring 24 is further connected between the upper end of the sleeve 27 and the lower end of the spring seat, when the spring 24 naturally extends, the upper end of the slide rod 26 is in contact with the pressure sensor 22, when the pressure plate is pressed upwards, the spring 24 is compressed, and the upper end of the slide rod 26 is pressed against the pressure sensor 22; the pressure sensors on the detection heads 33 arranged in a matrix are all provided with digital numbers representing relative positions and are in signal connection with the controller through leads; that is, each pressure sensor 22 on the lower surface of the fixed plate has its own relative position, and the relative position of the pressure sensor is represented by a number, i.e. a number corresponding to the relative position of the pressure plate 28, and the controller has a corresponding program, when a pressure signal is transmitted from a certain pressure sensor 22, the controller can know the relative position of the pressure sensor, and the pressure plates 28 connected with a plurality of pressure sensors 22 transmitting the pressure signal form a point front surface of the upper end surface of the packing box, and the area (including the length and the width) of the point front surface is easily measured according to the distance between the pressure plates 28, i.e. the area of the upper end surface of the packing box is measured.

In a further embodiment, as shown in fig. 1, the front surface of the vertical plate is longitudinally provided with a scale mark 15 for marking the distance of the extension end of the electric cylinder extending from the starting position, the bottom end of the scale mark 15 is flush with the upper surface of the conveyor belt, the top end of the scale mark 15 is flush with the starting position of the extension end, and the bottom end of the scale mark 15 is marked as 0, and the top end of the scale mark is marked as the height of the starting position of the extension end; as described above, when the telescopic end moves downwards, the controller can know the distance of the telescopic end moving downwards, the height marked on the top end of the scale mark 15 is subtracted by the distance of the telescopic end moving downwards, the thickness of the fixed plate is subtracted, and the height of the exposed part of the detection head 33 is subtracted, so that the height of the packing box is the height of the packing box.

In a further embodiment, the distance between adjacent detection heads is less than the length and width of the top end of the smallest-sized packing box, and the matrix width of the detection heads is wider than the width of the conveying belt.

In a further embodiment, as shown in fig. 1, a supporting plate 10 is further arranged below the middle part of the upper conveying belt 12, the front end and the rear end of the supporting plate 10 are fixedly connected with the upper end of the cross beam 8 through a connecting plate, and the upper surface of the supporting plate 10 is in sliding connection or clearance fit with the lower surface of the conveying belt; when the packing box reaches the detection position, electronic jar drives and is the detection head of matrix arrangement and pushes down, as shown in fig. 5, and partial detection head 33 offsets with the top of packing box, produces pressure signal, and remaining detection head is owing to do not extrude with the packing box top, then can not produce pressure signal, and the controller is long, wide, the area on quick discernment packing box top and the height of packing box to convey the letter sorting robot with relevant information.

In a further embodiment, the packaging boxes are classified according to the length and the width of the top end of the box body and the height of the box body, and set size errors are allowed when the packaging boxes are classified; the allowance of the size error means that the packing boxes with almost large sizes can be classified into one class, so that the number of classification is reduced, and the sorting is convenient.

The use principle of the invention is as follows:

the goods delivery device conveys the packing box to the input end of the conveying belt 12 through the discharge hopper 1, the photoelectric sensor 29 detects a signal and transmits the signal to the controller, the controller conveys the packing box to the lower part of the detection head 33 by controlling the stepping motor 18, and stops the stepping motor after the packing box is in place, at the moment, the controller sends an action signal to the electric cylinder, the telescopic end of the electric cylinder drives the detection head to press downwards, part of the detection head is propped against the top end of the packing box and generates a pressure signal, the controller judges the length, the width and the area of the top end of the packing box according to the relative position of the pressure sensor corresponding to the pressure signal and the size data of the pressing plate, judges the height of the packing box according to the distance of the downward movement of the telescopic end of the electric cylinder, a scale mark, the thickness of a fixed plate and the height of the exposed part of the detection head, in the process, the supporting plate supports the conveying belt to be propped against the bottom of the packing box, the packing box is prevented from sinking in the conveying belt, so that the measuring accuracy is guaranteed, after the measurement is finished, the controller transmits the size information of the packing box to the sorting robot, and the sorting robot sorts the packing box into the corresponding conveying hopper 31.

Claims

1. A logistics conveying apparatus, characterized by: the intelligent packaging box sorting device comprises a delivery device, a conveying device body, a sorting robot and a transportation trolley, wherein the delivery device conveys express packaging boxes to the conveying device body, the conveying device body is provided with an intelligent packaging box size monitoring device, the transportation trolley is provided with a hopper with an opening at the upper end, the hopper is divided into a plurality of transportation hoppers through partition plates, and the sorting robot sorts the packaging boxes into the transportation hoppers according to shapes and sizes;

the conveying device body also comprises a conveying belt device, the conveying belt device comprises a driving roller, a driven roller, a conveying belt in transmission connection between the driving roller and the driven roller, cross beams for supporting the driving roller and the driven roller, a supporting plate for supporting the cross beams and a stepping motor for driving the driving roller, the cross beams are provided with 2 beams which are respectively positioned at the front side and the rear side of the driving roller and the driven roller, two ends of a roller shaft of the driving roller and two ends of a roller shaft of the driven roller are respectively in rotation connection with the end parts of the cross beams at the front side and the rear side, the supporting plate is provided with 4 supporting plates which are respectively arranged below the end parts of the cross beams at the front side and the rear side, the upper end of the supporting plate is fixedly connected with the lower end of the cross beam, the lower end of the supporting plate is abutted against the ground, the stepping motor is fixedly arranged at the outer side of the supporting plate at one side of the driving roller and is in transmission connection with the roller shaft of the driving roller through the conveying belt, the goods conveying device is provided with a discharge hopper, the packaging box is conveyed to the input end of the upper surface of the conveying belt through the discharge hopper;

the intelligent packing box size monitoring device comprises a photoelectric sensor arranged on one side of an input end of the upper surface of a conveying belt, a controller fixedly arranged on the outer surface of a beam, and a monitor arranged on the rear side of the middle part of the conveying belt, wherein the sorting robot is positioned on the outer side of an output end of the upper surface of the conveying belt, the photoelectric sensor is connected with the controller through a lead signal, the controller is respectively electrically connected with a stepping motor and the monitor, when the photoelectric sensor detects a signal of a packing box, the controller is configured to control the stepping motor to rotate so that the packing box is conveyed to the monitor and stops, the monitor detects the size of the packing box and transmits a detection result to the controller, the controller sends the calculated size of the packing box to the sorting robot through a software program and starts the stepping motor so that the detected packing box moves to one side of the sorting robot, the sorting robot sorts the packing boxes into corresponding conveying hoppers;

the packaging box is conveyed to the middle part of the upper surface of the conveying belt, and when the conveying belt is started again through detection, the discharging hopper conveys another packaging box to the starting end of the upper surface of the conveying belt; the monitor comprises a vertical plate, an electric cylinder, a fixed plate and a detection head, wherein the vertical plate is arranged at the rear side of the middle part of the conveying belt, the lower end of the vertical plate abuts against the ground through a base, the height of the vertical plate is higher than that of the upper surface of the conveying belt, the electric cylinder is longitudinally arranged, the fixed end of the electric cylinder is fixed with the upper part of the front surface of the vertical plate through a connecting piece, the telescopic end of the electric cylinder extends downwards and is fixedly connected with the fixed plate, the fixed plate is horizontally arranged and is opposite to the upper surface of the conveying belt, the detection head is arranged on the lower surface of the fixed plate in a matrix manner, and the controller is electrically connected with the electric cylinder;

the detection head comprises a cavity arranged on the lower surface of the fixing plate, a pressure sensor embedded in the bottom of the cavity, a vertical pipe fixedly connected to the opening of the cavity, and a slide rod slidably connected in the vertical pipe, wherein a spring seat is fixedly arranged on the outer wall surface of the vertical pipe surrounding the outer edge of the opening of the cavity, the lower end of the slide rod extends out of the lower end of the vertical pipe, a pressing plate is fixedly connected to the lower end of the slide rod, a sleeve is arranged on the upper surface of the pressing plate, the lower end of the sleeve is fixedly connected with the upper surface of the pressing plate, the inner surface of the sleeve is slidably connected with the outer surface of the vertical pipe, a spring is connected between the upper end of the sleeve and the lower end of the spring seat, when the spring naturally extends, the upper end of the slide rod is in contact with the pressure sensor, when the pressing plate is subjected to upward pressure, the spring is compressed, and the upper end of the slide rod is extruded with the pressure sensor; the pressure sensors on the detection heads arranged in a matrix are provided with digital numbers representing relative positions and are in signal connection with the controller through leads;

the front surface of the vertical plate is longitudinally provided with a scale mark for marking the extending distance of the telescopic end of the electric cylinder from the initial position, the bottom end of the scale mark is flush with the upper surface of the conveying belt, the top end of the scale mark is flush with the initial position of the telescopic end, the bottom end of the scale mark is marked as 0, and the top end of the scale mark is marked as the height of the initial position of the telescopic end;

each pressure sensor has its own relative position, and is provided with a number, namely the relative position of the pressure sensor is represented by the number, namely the relative position corresponding to the pressure plate, the controller is provided with a corresponding program, when a pressure signal is transmitted by a certain pressure sensor, the controller can know the relative position of the pressure sensor, the pressure plates connected with a plurality of pressure sensors transmitting the pressure signal form a point array surface of the upper end surface of the packing box, the area of the point array surface, including the length and the width, is measured according to the distance between the pressure plates, and the area of the upper end surface of the packing box is measured by the method;

when the telescopic end of the electric cylinder moves downwards, the controller can know the distance of the downward movement of the telescopic end, and the height marked at the top end of the scale mark is subtracted by the distance of the downward movement of the telescopic end, the thickness of the fixed plate and the height of the exposed part of the detection head, namely the height of the packing box.

2. A logistics transfer apparatus as defined in claim 1 wherein: the distance between the adjacent detection heads is smaller than the length and the width of the top end of the packing box with the minimum model, and the matrix width of the detection heads is wider than the width of the conveying belt.

3. A logistics transfer apparatus as defined in claim 2 wherein: the lower part of the middle part of the conveyer belt positioned above is also provided with a supporting plate, the front end and the rear end of the supporting plate are fixedly connected with the upper end of the cross beam through a connecting plate, and the upper surface of the supporting plate is in sliding connection or clearance fit with the lower surface of the conveyer belt.

4. A logistics transfer apparatus as defined in claim 3 wherein: the packaging boxes are classified according to the length and the width of the top end of the box body and the height of the box body, and set size errors are allowed when the packaging boxes are classified.