Batch-by-batch Package Conveyor, Its Package Conveying Method and Logistics Sorting System

Abstract

The present invention discloses a device for sequentially conveying a batch of packages, a method for conveying packages thereof, and a logistics sorting system. The conveying device includes a side-aligning machine. The output end of the side-aligning machine is connected to a first conveying line and a reverse side-aligning machine which are arranged in sequence from the side to which it is to be leaned to the other side. The first conveying line includes a parallel directional conveying line and a deflecting wheel / ball conveying line located between the directional conveying line and the reverse side-aligning machine. The output end of the first conveying line is connected to the input end of the second conveying line. Both the directional conveying line and the deflecting wheel / ball conveying line are connected to a control device. The control device determines whether there are parallel packages on the first conveying line according to the data collected by a parallel recognition device to control the operation of the directional conveying line and the deflecting wheel / ball conveying line. This solution uses a parallel recognition device to identify whether there are parallel packages to adjust the feeding states of the directional conveyor and the deflecting wheel / ball conveying line, so that the packages are output one by one, effectively improving the reliability, and providing a specific implementation structure which is easy to implement.

Description

Technical Field

[0001] The present invention relates to the field of sorting, in particular to a device for conveying a batch of packages one by one, a method for conveying packages thereof, and a logistics sorting system. Background Art

[0002] In recent years, with the rapid rise and popularization of e-commerce, the logistics industry has developed vigorously, and the logistics sorting business has been increasing continuously year by year. The traditional sorting business process usually transports mixed packages to the sorting site for centralized transportation, unloads the vehicles manually, and then performs matrix sorting through a belt conveyor or sorting through a cross-belt sorter.

[0003] Packages must be unloaded and placed one by one at the matrix sorting entrance. In the traditional unloading process, a large number of workers are required to unload and place the packages one by one as required, and there are high requirements for the spacing of unloading and placing the packages, resulting in a slow unloading speed and a long time-consuming process, which not only reduces the turnover speed of packages and vehicles, but also wastes time and labor.

[0004] Although the automatic feeding system can effectively improve the feeding efficiency of the cross-belt sorter, there are also strict placement requirements in the unloading process, and a large amount of labor and time are required for preprocessing the packages after unloading.

[0005] Therefore, how to develop a device for conveying a batch of packages one by one has become the focus of competition among major logistics equipment enterprises. For example, the method for realizing single-piece separation of packages disclosed in the patent application No. 201811451447.5 discloses that the packages are conveyed to the narrow belt conveyor by the centering roller conveyor, and then conveyed to the separation roller conveyor by the narrow belt conveyor for secondary separation. The packages that cannot enter the narrow belt conveyor are conveyed to the chute by the outer roller conveyor.

[0006] However, this structure has certain problems:

[0007] 1. Since the packages have different sizes, in order to ensure that most sizes of packages can be adapted, the narrow belt conveyor is often set to a sufficient width. Therefore, during actual conveying, there is often a problem that two relatively small packages enter the narrow belt conveyor at the same time and are conveyed in parallel. At this time, it is impossible to ensure that the packages are output to the separation roller conveyor one by one, affecting the operation reliability of the entire device.

[0008] 2. In the above solution, the realization of secondary separation through the separation roller conveyor is only a preset goal to be achieved, but no specific implementation solution is provided. For example, no structure is given to achieve separation, and how to determine whether separation is required, etc. Therefore, for those skilled in the art, it is obviously difficult to achieve single-piece output through the content recorded in the patent application.

[0009] 3. In this structure, due to the limited width of the narrow belt conveyor, the volume of the packages that can pass through can only be moderate. Once there is a package whose size is significantly larger than the width of the conveying surface of the narrow belt conveyor, it cannot be conveyed through the narrow belt conveyor, thus affecting the applicable range of the entire separation device. Summary of the Invention

[0010] The purpose of the present invention is to solve the above problems existing in the prior art and provide a

[0011] device for conveying a batch of packages one by one, a method for conveying packages thereof, and a logistics sorting system.

[0012] The purpose of the present invention is achieved through the following technical solutions:

[0013] The device for conveying a batch of packages one by one includes a side-aligning machine. The output end of the side-aligning machine is connected to a first conveyor line and a reverse side-aligning machine arranged in sequence from the side it is to lean towards to the other side. The first conveyor line includes a parallel directional conveyor line and a deflection wheel or ball conveyor line located between the directional conveyor line and the reverse side-aligning machine. The output end of the first conveyor line is connected to the input end of the second conveyor line. Both the directional conveyor line and the deflection wheel or ball conveyor line are connected to a control device. The control device determines whether there are parallel packages on the first conveyor line according to the data collected by a parallel recognition device to control the operation of the directional conveyor line and the deflection wheel or ball conveyor line.

[0014] Preferably, in the device for conveying a batch of packages one by one, a group of buffer rollers with axes perpendicular to the conveying surface of the side-aligning machine are arranged on the side that the side-aligning machine is to lean towards.

[0015] Preferably, in the device for conveying a batch of packages one by one, at least one row of support balls or wheels is further arranged between the directional conveyor line and the second conveyor line.

[0016] Preferably, in the device for conveying a batch of packages one by one, the parallel recognition device is a combination of one or more of an image acquisition device, a laser sensor, and a photoelectric sensor connected to the control device.

[0017] Preferably, in the device for conveying a batch of packages one by one, the parallel recognition device is arranged in the first half or the middle part of the first conveyor line.

[0018] Preferably, in the batch package-by-package conveying device, a third conveyor line is arranged side by side outside the reverse edge-aligning machine. There is a height difference on both sides of the reverse edge-aligning machine. The conveying surface on its first side is below the conveying surface of the first conveyor line, and the conveying surface on its second side is matched with the conveying surface of the third conveyor line. The input end of the second conveyor line is connected to the output end of the third conveyor line, and a blanking roller is arranged on the side of the second conveyor line close to the third conveyor line. The blanking roller is driven by a power source.

[0019] Preferably, in the batch package-by-package conveying device, the blanking roller is an in-built motor roller, and it extends from the input end to the output end of the second conveyor line not exceeding the length of the second conveyor line.

[0020] Preferably, in the batch package-by-package conveying device, the second conveyor line includes at least two sections, and the conveying speed increases progressively.

[0021] Preferably, in the batch package-by-package conveying device, a first chute is arranged outside the second conveyor line, and a second chute is arranged outside the third conveyor line. The first chute and the second chute are connected to a return line, and the output end of the return line is connected to an upper package line. The upper package line conveys packages to the edge-aligning machine.

[0022] A logistics sorting system includes the batch package-by-package conveying device as described in any one of the above.

[0023] A method for conveying packages of a batch package-by-package conveying device includes the following steps:

[0024] S1. The package enters the edge-aligning machine and moves along with the edge-aligning machine towards the side where the first conveyor line is located and towards the first conveyor line.

[0025] S2. The package conveyed on the first conveyor line passes through a parallel identification device to confirm whether there are parallel packages.

[0026] S3. If there are parallel packages, the deflector wheel or the ball conveyor line changes direction to output the packages on it to the reverse edge-aligning machine side and then resets after reaching the reverse edge-aligning machine.

[0027] S4. If there are no parallel packages, the directional conveyor line and the deflector wheel or the ball conveyor line maintain the same direction and conveying speed for conveying.

[0028] S5. The packages close to the outside on the first conveyor line are conveyed to the second conveyor line for continuous conveying.

[0029] S6. The packages that do not enter the first conveyor line enter the reverse edge-aligning machine and lean towards the opposite side.

[0030] Preferably, the separation method of the batch package-by-package conveying device further includes step S7, which includes

[0031] S71, Determine whether there are large packages on the first conveyor line and the third conveyor line, and whether there are packages parallel to the large packages on the first conveyor line;

[0032] S72, If it is determined that there are no large packages, control the blanking roller to keep rotating to discharge materials to the outside of the second conveyor line;

[0033] S73, If it is determined that there are large packages and no parallel packages, control the blanking roller to stop when the large package moves to the second conveyor line, and when the large package moves out beyond the far end of the blanking roller, the blanking roller resumes rotating to discharge materials;

[0034] S74, If it is determined that there are large packages and there are parallel packages, control the blanking roller to keep rotating to discharge materials to the outside of the second conveyor line.

[0035] The advantages of the technical solution of the present invention are mainly reflected in:

[0036] In this solution, the first conveyor line is divided into a parallel directional conveyor and a deflecting wheel or ball conveyor line, with the directional conveyor line on the outside and the deflecting wheel or ball conveyor line on the inside. Combined with a parallel recognition device to identify whether there are parallel packages. When there are parallel packages, adjust the conveying direction of the deflecting wheel or ball conveyor line, or adjust the conveying speeds and start / stop states of the directional conveyor and the deflecting wheel or ball conveyor line, so that the packages can be output from the first conveyor line to the second conveyor line one by one through various adjustment methods, effectively ensuring the reliability of operation, and providing a specific implementation structure, which is easy to implement.

[0037] By using a deflecting wheel or ball conveyor line, different deflecting wheels / balls can be controlled in different regions, which can minimize the impact on the packages before and after the parallel packages during conveying, and ensure the stability and effectiveness of conveying.

[0038] One side of the side-aligning machine in this solution has buffer rollers, which effectively reduce the collision when the package is aligned with the side, improve the safety of the package, and at the same time reduce the resistance of the friction between the package and the side of the side-aligning machine, improving the smoothness of conveying.

[0039] In this solution, support balls or wheels are added between the directional conveyor line and the deflecting wheel or ball conveyor line, which can effectively support the packages without affecting normal conveying. At the same time, when there are parallel packages, it can also reduce the influence of the different conveying directions and speeds of the directional conveyor line and the deflecting wheel or ball conveyor line on the packages conveyed above them respectively, reducing interference.

[0040] In the structure of this solution, a third conveyor line parallel to the reverse edge-aligning machine is added, which can effectively increase the conveying area. Thus, when the packages on the edge-aligning machine are large, they can be conveyed on the first and third conveyor lines. When the packages input by the edge-aligning machine are small goods, they can be conveyed separately from the first conveyor, effectively meeting the requirements for both large and small packages. Moreover, when the large packages are conveyed to the single-piece conveyor line, due to the width setting of the single-piece conveyor line, the main area of the packages can be supported, thus ensuring the stability of large-package conveying. It has good flexibility in application and high applicability.

[0041] In the structure of this solution, rollers are arranged on one side of the second conveyor line. When there are small pieces parallel to large pieces, the rollers can effectively make the large pieces exit the return line and will not be output in parallel with the small pieces, thus ensuring the reliability of single-piece output.

[0042] The return conveyor line uses a turning machine for conveying, which not only improves the conveying efficiency but also enhances the stability of connection, making it easier to achieve. Brief Description of the Drawings

[0043] Figure 1 is a top view of the present invention;

[0044] Figure 2 is a side view of the edge-aligning machine of the present invention;

[0045] Figure 3 is a schematic diagram of the first conveyor line and the reverse edge-aligning machine area of the present invention;

[0046] Figure 4 is a top view of the second embodiment of the present invention;

[0047] Figure 5 is a side view of the second embodiment of the present invention;

[0048] Figure 6 is a schematic diagram of multiple blanking rollers in the present invention;

[0049] Figure 7 is a schematic diagram of the third embodiment of the present invention;

[0050] Figure 8 is a schematic diagram of the moving states of two parallel packages and two packages in the present invention;

[0051] Figure 9 is a schematic diagram of the moving states of a large package, a package parallel to it, and two packages on the second conveyor line in the present invention. Detailed Description of the Invention

[0052] The objectives, advantages and features of the present invention will be illustrated and explained by the following non-limiting description of the preferred embodiments. These embodiments are merely typical examples of applying the technical solutions of the present invention, and any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

[0053] In the description of the solution, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of description and simplification, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. And, in the description of the solution, with the operator as a reference, the direction close to the operator is the proximal end, and the direction away from the operator is the distal end.

[0054] The following will elaborate on the batch package-by-package conveying device disclosed by the present invention in conjunction with the drawings. As shown in the attached Figure 1 figure, it includes a side-aligning machine 1. The side-aligning machine 1 can be various known roller side-aligning devices, and its specific structure is prior art and will not be elaborated. Its length and width are such that the packages on one side can move to the side they are to lean against when input from the input end.

[0055] Moreover, in order to avoid the conveying resistance caused by the collision and friction between the packages and the side of the side-aligning machine 1 when the packages move to the side the side-aligning machine 1 is to lean against, as shown in the attached Figure 2 figure, a set of buffer rollers 11 with axes perpendicular to its conveying surface are arranged on the side-aligning machine 1 on the side it is to lean against. The buffer rollers 11 extend from near the input end to the output end of the side-aligning machine 1. The buffer rollers 11 can be silicone wheels, rubber wheels, etc., and can rotate. For example, each buffer roller 11 is fixed on the column 12 on the side the side-aligning machine 1 is to lean against through bearings, etc. At the same time, the circumferential surface of each buffer roller extends into the conveying surface of the side-aligning machine 1, so that when the packages are conveyed to the side the side-aligning machine is to lean against, they come into contact with the buffer rollers 11. And the buffer rollers 11 can slow down the impact on the products through their softer texture. In addition, the buffer rollers 11 are pushed by the packages to rotate, thereby reducing the friction and ensuring the smoothness of the conveying.

[0056] As shown in the attached Figure 1As shown, the output end of the edge-aligning machine 1 is connected to a first conveyor line 2 and a reverse edge-aligning machine 3 arranged in sequence from the side it leans towards to the other side. The first conveyor line 2 includes a parallel directional conveyor line 21 and a deflecting wheel or ball conveyor line 22 located between the directional conveyor line 21 and the reverse edge-aligning machine 3. The conveying surfaces of the directional conveyor line 21 and the deflecting wheel or ball conveyor line 22 are flush.

[0057] As shown in the appendix Figure 1 As shown, the width of the output end of the edge-aligning machine 1 is not less than the sum of the widths of the first conveyor line 2 and the reverse edge-aligning machine 3. In a preferred embodiment, the width of the output end of the edge-aligning machine 1 is greater than the sum of the widths of the first conveyor line 2 and the reverse edge-aligning machine 3. Therefore, the part of the edge-aligning machine 1 located outside the reverse edge-aligning machine 3 can be directly moved out to the outside, thus reducing the packages falling onto the reverse edge-aligning machine 3.

[0058] The directional conveyor line 21 can be various conveyor lines capable of straight-line conveying, such as a belt conveyor, a roller conveyor, etc. It is located on the first side of the edge-aligning machine 1 and is used to continue conveying the packages aligned on the edge-aligning machine 1 backward. A baffle (not shown in the figure) is provided on the side of the first conveyor line 2 towards which the edge-aligning machine 1 leans.

[0059] The deflecting wheel or ball conveyor line can be various known deflecting conveying devices. For example, it can be set to a set length and width with reference to the structure of the deflecting wheel sorter disclosed in application numbers 201721728210.8, 201910265828.2, etc.

[0060] And the normal conveying speed and conveying direction of the deflecting wheel or ball conveyor line are the same as those of the directional conveyor line 21, that is, it conveys towards the direction of the second conveyor line; in another state, the conveying direction of the deflecting wheel or ball conveyor line 22 can be switched to convey towards the side of the directional conveyor line 21 or the side of the reverse edge-aligning machine 3.

[0061] Furthermore, as shown in the appendix Figure 3 As shown, at least one row of support balls or wheels 23 with the same height as their conveying surfaces at the top is also provided between the directional conveyor line 21 and the deflecting wheel or ball conveyor line 22. The support balls or wheels 23 can be various known directional balls or universal balls. When it is a directional wheel or ball, the axis of the support shaft where it is located is perpendicular to the conveying direction of the directional conveyor line 21. Thus, during conveying, especially when there are two parallel packages on the first conveyor line 2, the two parallel packages can be offset by adjusting the conveying speeds of the directional conveyor line 21 and the deflecting wheel or ball conveyor line. At the same time, the setting of the support balls or wheels 23 can reduce the influence on the conveying of the front and rear packages of the parallel packages when the speeds on both sides are different.

[0062] As shown in the appendix Figure 1As shown, the output ends of the directional conveyor line 21 and the deflector wheel or ball conveyor line 22 are connected to the input end of the second conveyor line 4. The second conveyor line 4 can have the same structure or a different structure as the directional conveyor line 21. Preferably, it is a belt conveyor and its length is greater than that of the directional conveyor line 21.

[0063] The edge-aligning direction of the reverse edge-aligning machine 3 is opposite to that of the edge-aligning machine 1. Its specific structure is similar to that of the edge-aligning machine 3 and is a known technology. The difference is that the inclination directions of their rollers are opposite to achieve edge-aligning in the opposite direction.

[0064] In addition, in order to increase the distance between the front and rear packages, the conveying speed of the second conveyor line 4 is greater than the conveying speeds of the directional conveyor line 21 and the deflector wheel or ball conveyor line 22. At the same time, the second conveyor line 4 includes at least two sections, and the conveying speed of each section is less than that of its subsequent section. As shown in the appendix Figure 4 As shown, taking two sections 41 and 42 as an example, the conveying speed of the front section 41 close to the first conveyor line 2 is greater than the conveying speed of the first conveyor line 2, and the conveying speed of the rear section 42 far from the first conveyor line 2 is greater than the conveying speed of the front section 41.

[0065] Furthermore, as shown in the appendix Figure 1 and the appendix Figure 5 As shown, the batch package-by-package conveying device further includes a parallel identification device 5. The parallel identification device 5 is connected to a control device (not shown in the figure). The control device is connected to the edge-aligning conveyor line, the first conveyor line, the reverse edge-aligning conveyor line, the second conveyor line, and the third conveyor line and controls them to be coaxial. The parallel identification device 5 is used to collect the basic data required by the control device for determining whether there are parallel packages on the first conveyor line 2, such as image signals, analog signals, etc. The control device determines the working states of the directional conveyor line 21 and the deflector wheel or ball conveyor line 22 according to the basic data obtained by the parallel identification device 5 to control the concurrent signals, so that the packages on the first conveyor line 2 are output one by one.

[0066] Here, parallel packages refer to the situation where the package on the first conveyor line 2 close to the reverse edge-aligning machine side and at least one package on the first conveyor line 2 close to the outside (the side far from the reverse edge-aligning machine) have an overlapping part. At this time, it is impossible to ensure that the packages are conveyed one by one to the rear. Package-by-package output means that each package on the first conveyor line 2 starts to be conveyed out of the first conveyor line after its previous package has been completely conveyed out of the first conveyor line 2.

[0067] The parallel recognition device 5 may be an image acquisition device arranged above the first conveyor line 2. The image acquisition device may be various cameras, video cameras, CCD modules with photographing functions, and may even be a smart phone, a tablet computer, etc. The coverage range of its lens covers at least the first half of the entire first conveyor line 2, and preferably covers the entire first conveyor line 2.

[0068] In another embodiment, the parallel recognition device 5 may also be a laser sensor and / or a photoelectric sensor (capable of ranging) arranged above the first conveyor line 2. A plurality of the laser sensors and / or photoelectric sensors are arranged in a straight line from one side of the first conveyor line 2 to the other side. When the sensing distance of at least one laser sensor and / or photoelectric sensor in the middle remains unchanged, while the sensing distances of a plurality of sensors on both sides thereof are reduced relative to the initial distance without wrapping, it can be considered that there are two parallel packages on the first conveyor line 2. However, this method requires a large number of sensors, and the detection accuracy is slightly worse than that of visual recognition.

[0069] Furthermore, preferably, the parallel recognition device 5 is arranged in the first half or the middle of the first conveyor line 2, so that when it is confirmed that there are parallel packages, the deflector wheel or the ball conveyor line 22 has sufficient distance and time for adjustment.

[0070] The control device may be a known control device, such as the combination of a PLC and an industrial computer, or a separate PLC system. Its specific control software can be compiled according to the control process to be realized, which is not the focus of this solution and will not be elaborated here.

[0071] In addition, since the sizes of the packages entering the edge-aligning machine 1 are not necessarily the same, for some large packages, their centers of gravity are often located outside the first conveyor line 2, so they will fall into the reverse edge-aligning machine and cannot be conveyed, which limits its application range. In view of this, as shown in the appendix Figure 4 As shown, in order to convey large packages, a third conveyor line 6 with a conveying surface at the same height as that of the first conveyor line 2 is arranged side by side outside the reverse edge-aligning machine 3. The structure of the third conveyor line 6 may be the same as or different from that of the second conveyor line 4. Preferably, it is a roller conveyor line. At the same time, the width of the third conveyor line 6 is smaller than the width of the first conveyor line 2.

[0072] Moreover, there is a height difference on both sides of the reverse side-aligning machine 3. The conveying surface on its first side is located below the conveying surface of the first conveyor line 2, and the conveying surface on its second side matches the conveying surface of the third conveyor line 6. That is, the side of the conveying surface of the reverse side-aligning machine 3 connecting to the third conveyor line is higher than the other side. At this time, when a large package is conveyed on the first conveyor line 2 and the third conveyor line 6, the reverse side-aligning machine 3 will not interfere with its conveyance.

[0073] Meanwhile, the input end of the second conveyor line 4 is also connected to the output end of the third conveyor line 6, so as to effectively support large packages and ensure effective conveyance. However, in some special cases, for example, when a large package and a package are in a parallel relationship on the first conveyor line 2, it is necessary to move the large package out of the second conveyor line 4 at this time, so as to ensure that the package parallel to the large package can be separately output outside the second conveyor line 4.

[0074] Thus, as shown in the attached Figure 4 figure, a blanking roller 7 is provided on the second conveyor line 4 on the side close to the third conveyor line 6, and the blanking roller 7 is driven by a power source. For example, the blanking roller 7 can be driven by an external motor through a transmission mechanism. In a preferred embodiment, as shown in the attached Figure 4 figure, the blanking roller 7 is an in-built motor roller, which can effectively simplify the overall structure, and its length can be equal to that of the second conveyor line 4, or it can only extend a certain distance from the input end to the output end of the second conveyor line 4, and preferably does not exceed half of the length of the second conveyor line 4.

[0075] In another embodiment, as shown in the attached Figure 6 figure, the blanking roller 7 can be in multiple segments 71, 72, and the length of each segment is equivalent to the length of each segment 41, 42 of the second conveyor line 4. In this way, the start and stop of each segment of the blanking roller can be controlled separately. When a large package passes through alone, the stop time of the blanking roller 7 can be reduced, so as to avoid affecting the output of subsequent packages to the outside. And the conveying speed of the blanking roller 7 is greater than the conveying speed of the second conveyor line, so as to ensure that the parallel large packages can be effectively blanked.

[0076] Furthermore, as shown in the attached Figure 7As shown in the figure, a first chute 8 is provided outside the second conveyor line 4, and a second chute 9 is provided outside the third conveyor line 6. The first chute 8 and the second chute 9 are connected to the side surface of the conveying surface of the return line 10. The output end of the return line 10 is connected to the upper package line 20 that conveys packages to the edge-aligning machine 1. The return line 10 can be various known conveying devices. For example, it includes a straight conveyor 101 and a turning machine 102. The output end of the turning machine 102 is connected to the side surface or the input end of the conveying surface of the upper package line 20. Finally, at least one stage of ramp conveyor line 30 is further provided between the upper package line 20 and the input end of the edge-aligning machine 1, so that the packages stacked together can be separated by the ramp conveyor line 30.

[0077] The package conveying method of the batch package one-by-one conveying device disclosed in this solution includes the following steps:

[0078] S0, Manually or through an automated device, pour multiple packages onto the upper package line 20. The upper package line 20 conveys the packages to the ramp conveyor line 30. The packages climb along the ramp conveyor line 30 to separate the packages stacked together and convey them to the edge-aligning machine 1.

[0079] S1, The package enters the edge-aligning machine 1 and moves along with the edge-aligning machine towards the side where the first conveyor line 3 is located and towards the first conveyor line 3. And in a preferred embodiment, the conveying speed of the edge-aligning machine 2 is greater than the conveying speed of the upper package line 20 or the ramp conveyor line 30, so that the parallel packages can be separated by a certain distance through the increase in speed, and at the same time, two packages leaning on each other can be separated.

[0080] S2, The package enters the first conveyor line 3 for conveying. And preferably, during normal conveying, the conveying speed of the first conveyor line 3 is greater than the conveying speed of the edge-aligning machine 1. The packages are conveyed through the parallel recognition device 5 to confirm whether there are two parallel packages. Taking the camera as an example of the parallel recognition device, the camera collects the images of the packages on the conveying surface of the first conveyor line 3 and sends them to the control device for image analysis (the image analysis method here is a known technology and is not the innovation focus of this solution, so it will not be elaborated here) to determine whether there are two parallel packages, and send signals according to the judgment results to control the working state of the deflecting ball conveyor line 22.

[0081] S3, As shown in the appendix Figure 8As shown, if the control device confirms the existence of parallel packages 40 and 50, it sends a signal to control the deflection of the deflection wheel or the ball conveyor line 22 to output the package 50 located inside the second conveyor line 4 (the side close to the reverse edge-aligning machine) to the reverse edge-aligning machine 4 side. The package 50 is output to the chute 8 with the reverse edge-aligning machine 4 and enters the return line 10 to return to the upstream line 20. Here, it can be to deflect a part of the deflection wheels / balls in front of the package 50. The specific control of the deflection can be determined by tracking the position of the package 50 on the conveyor line. For example, its current position can be determined by image analysis, known sensor tracking, encoder tracking, etc., so as to determine which deflection wheels / balls need to deflect. It is also possible to fixedly rotate a set number of deflection balls / wheels at a set distance in front of the package when parallel packages are determined. Of course, it is also possible to deflect all the deflection wheels of the entire deflection wheel or ball conveyor line 22 to the same side. After the deflection is completed, it can be reset after a preset time, or it can be restored after the image recognition device confirms that the package has entered the reverse edge-aligning machine 4.

[0082] Of course, in step S3, in addition to conveying the package located inside on the first conveyor line to the reverse edge-aligning machine 4 according to the above process, in another alternative embodiment, the speed of the one-way conveyor line 21 and / or the deflection wheel or ball conveyor line 22 can also be adjusted, so that the package located inside on the first conveyor line is staggered from the package on the outside.

[0083] In yet another alternative embodiment, it is also possible to stop the directional conveyor line, and after a package in front of the outer package parallel to the inner package enters the second conveyor line, stop the directional conveyor line, and restart the directional conveyor line for conveying when the end of the package on the deflection wheel or ball conveyor line moves in front of the front end of its parallel package, so that the inner package and the outer package are completely misaligned. And when judging whether the previous package has left the first conveyor line, it can be judged by the image collected by the parallel recognition device. For example, when parallel packages are confirmed, the distance from the tail end of a package in front of the outer package among the parallel packages to the output end of the first conveyor line is analyzed by image, and according to the conveying speed of the current directional conveyor line, it is possible to calculate how long it takes to leave the first conveyor line. Of course, it is also possible to judge whether the package has left the first conveyor line by the sensor located at the output end in combination with package tracking. This is a known technology and will not be elaborated here.

[0084] S4, if the control device confirms that there are no parallel packages, it controls the directional conveyor line 21 and the deflection wheel or ball conveyor line 22 to maintain the same direction and conveying speed for conveying, that is, the directional conveyor line 21 and the deflection wheel or ball conveyor line 22 maintain the initial state.

[0085] S5. The packages on the first conveyor line 3 near the outer side (the side away from the reverse aligning machine) are conveyed to the second conveyor line for continuous conveyance. The conveyance speed of the second conveyor line is preferably greater than the conveyance speed of the first conveyor line during normal conveyance.

[0086] S6. The packages on the aligning machine 1 that have not entered the first conveyor line 2 enter the reverse aligning machine 4 on the opposite side and are input into the chute and then enter the return line 10 to return to the upstream line 20.

[0087] Further, the separation method of the batch package-by-package conveying device further includes step S7, which includes

[0088] S71. Determine whether there are large packages 60 on the first conveyor line 2 and the third conveyor line 6 and whether there are packages parallel to the large packages on the first conveyor line 2.

[0089] S72. If it is determined that there are no large packages, control the feeding roller to keep rotating to feed to the outer side of the second conveyor line (i.e., the side of the second conveyor line close to the chute). Since the output ends of the reverse aligning machine and the third conveyor line are both connected to the second conveyor line, the output packages on the reverse aligning machine may enter the second conveyor line under the conveying action of the third conveyor line. At this time, the feeding roller can output these packages from the second conveyor line to avoid interference.

[0090] S73. If it is determined that there are large packages and no packages parallel to them, control the feeding roller 7 to stop when the large package moves to the second conveyor line 4, and the feeding roller resumes rotating for feeding when the large package moves out of the feeding roller 7. Here, the time when the large package enters the second conveyor line 4 can be determined by the collected images. This is a known technology and will not be elaborated here.

[0091] S74. As shown in the attached... Figure 9 If it is determined that there are large packages 60 and packages 40 parallel to them, control the feeding roller 7 to keep rotating. At this time, the large package 60 on the outer side can be fed under the conveyance of the feeding roller, that is, the large package will enter the chute and then enter the return line.

[0092] This solution further discloses a logistics sorting system, including the batch package-by-package conveying device as described above, and further including sorting equipment that needs to supply packages one by one, such as a cross-belt sorting system, a deflecting wheel sorting system, a swing arm sorting system, etc.

[0093] There are still various implementation manners of the present invention. All technical solutions formed by equivalent transformation or equivalent substitution fall within the protection scope of the present invention.

Claims

1. Batch-by-batch parcel one-by-one conveying device, Characterized in that: It includes a side-aligning machine (1), and the output end of the side-aligning machine (1) is connected to a first conveying line (2) and a reverse side-aligning machine (3) arranged in sequence from the side it is to lean towards to the other side. The first conveying line (2) includes a parallel directional conveying line (21) and a deflecting wheel or ball conveying line (22) located between the directional conveying line (21) and the reverse side-aligning machine (3). The output end of the first conveying line (2) is connected to the input end of a second conveying line (4). Both the directional conveying line (21) and the deflecting wheel or ball conveying line (22) are connected to a control device. The control device determines whether there are parallel parcels on the first conveying line (2) according to the data collected by a parallel recognition device (5) to control the operation of the directional conveying line (21) and the deflecting wheel or ball conveying line (22); The parallel recognition device (5) is a combination of one or more of an image acquisition device, a laser sensor, and a photoelectric sensor connected to the control device; A third conveying line (6) is arranged side by side outside the reverse side-aligning machine (3). There is a height difference between the two sides of the reverse side-aligning machine (3). The conveying surface of its first side is located below the conveying surface of the first conveying line (2), and the conveying surface of its second side matches the conveying surface of the third conveying line (6). The input end of the second conveying line (4) is connected to the output end of the third conveying line (6), and a blanking roller (7) is arranged on one side of the second conveying line (4) close to the third conveying line (6). The blanking roller (7) is driven by a power source.

2. The batch-by-batch parcel one-by-one conveying device according to claim 1, Characterized in that: A group of buffer rollers (11) with axes perpendicular to the conveying surface of the side-aligning machine are arranged on the side that the side-aligning machine (1) is to lean towards.

3. The batch-by-batch parcel one-by-one conveying device according to claim 1, Characterized in that: At least one row of support balls or wheels (23) is further arranged between the directional conveying line (21) and the deflecting wheel or ball conveying line (22).

4. The batch-by-batch parcel one-by-one conveying device according to claim 1, Characterized in that: The parallel recognition device (5) is arranged in the first half or the middle part of the first conveying line (2).

5. The batch-by-batch parcel one-by-one conveying device according to claim 1, Characterized in that: The blanking roller (7) is a built-in motor roller, and it extends from the input end to the output end of the second conveying line (4) not exceeding the length of the second conveying line (4).

6. The batch-by-batch parcel one-by-one conveying device according to claim 1, Characterized in that: The second conveying line (4) includes at least two segments, and the conveying speed increases.

7. The batch-by-batch parcel one-by-one conveying device according to any one of claims 1-6, Characterized in that: A first chute (8) is arranged outside the second conveyor line (4), and a second chute (9) is arranged outside the third conveyor line (6). The first chute (8) and the second chute (9) are connected to a return line (10), and the output end of the return line (10) is connected to an upper packing line (20). The upper packing line (20) conveys packages to the edge-aligning machine (1).

8. Logistics sorting system, characterized in that: It includes the batch package-by-package conveying device according to any one of claims 1-7.

9. Package conveying method of the batch package-by-package conveying device, characterized in that: The batch package-by-package conveying device according to any one of claims 1-7 is adopted, and it includes the following steps: S1. The package enters the edge-aligning machine (1) and moves along with the edge-aligning machine towards the side where the first conveyor line (2) is located and towards the first conveyor line (2); S2. The package entering the first conveyor line (2) is conveyed through the parallel identification device (5) to confirm whether there are parallel packages; S3. If there are parallel packages, the deflector wheel or ball conveyor line (22) changes direction to output the packages thereon to the reverse edge-aligning machine (3) side and then resets after the packages are output to the reverse edge-aligning machine (3); S4. If there are no parallel packages, the directional conveyor line (21) and the deflector wheel or ball conveyor line (22) keep the same direction and conveying speed for conveying; S5. The packages near the outer side on the first conveyor line (2) are conveyed to the second conveyor line (4) for continuous conveying; S6. The packages that do not enter the first conveyor line (2) enter the reverse edge-aligning machine (3) and lean towards the opposite side.

10. The package conveying method of the batch package-by-package conveying device according to claim 9, characterized in that: It further includes step S7, which includes: S71. Determine whether there are large packages on the first conveyor line (2) and the third conveyor line (6) and whether there are packages parallel to the large packages on the first conveyor line (2); S72. If it is determined that there are no large packages, control the blanking roller to keep rotating to blank to the outside of the second conveyor line; S73. If it is determined that there are large packages and no packages parallel to them, control the blanking roller to stop when the large package moves to the second conveyor line, and when the large package moves out of the far end of the blanking roller, the blanking roller resumes rotating for blanking; S74. If it is determined that there are large packages and there are packages parallel to them, control the blanking roller to keep rotating to blank to the outside of the second conveyor line.

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