Sorting device

Abstract

The present invention relates to a sorting device, comprising: a sorting platform, the sorting platform is used to transport parcels, and a drop port for passing the parcels is arranged on the sorting platform; a flexible buffer pipe having a feed port and a discharge port, the feed port is connected to the drop port, and the flexible buffer pipe is used to buffer the parcels entering the flexible buffer pipe; and a guide chute, which connects and positions the discharge port. Since a flexible buffer pipe and a guide chute are installed at the drop port, when the parcel falls from the drop port, it enters the flexible buffer pipe from the feed port of the flexible buffer pipe. The flexible buffer pipe is flexible, and during the falling process, the parcel hits the inner wall of the flexible buffer pipe and forms a buffer to prevent the parcel from being broken. After the parcel is buffered in the flexible buffer pipe, the sliding speed of the parcel can also be reduced. The parcel eventually slides out of the discharge port of the flexible buffer pipe at a slower speed and enters the guide chute.

Description

Technical Field

[0001] The present invention relates to the technical field of automated devices for logistics, and in particular to a sorting device. Background Art

[0002] In recent years, in order to cooperate with the rapid development of logistics and express delivery business and improve the operational efficiency of logistics distribution centers, the automated sorting system has been gradually promoted, and the application of the bag-dropping flip-type sorting AGV system is the most representative new equipment solution. Due to its unit modularization, high flexibility, high flexibility and high efficiency, it has been applied and promoted within a certain range.

[0003] The bag-dropping flip-type sorting AGV system generally includes a feeding system, an AGV robot, a running steel platform, and a bag return line system. After the manual feeding point completes the scanning of the feeding, the parcels are sorted by the bag-dropping flip-type sorting AGV system. When the AGV robot carries the parcels and walks on the running steel platform and reaches the designated flow grid position, the parcels are separated by tilting the flip-plate operation. The parcels will fall into the bag collection sack through the chute, completing the parcel collection operation.

[0004] However, when the AGV robot operates through the tilting flap, the falling package will hit the chute, causing the package to deform or even be damaged. Summary of the invention

[0005] Based on this, it is necessary to provide a sorting device to address the above technical problems.

[0006] A sorting device, comprising:

[0007] A sorting platform, the sorting platform is used to transport parcels, and the sorting platform is provided with a drop port for passing the parcels;

[0008] a flexible buffer pipe having a feed inlet and a discharge inlet, wherein the feed inlet is connected to the discharge inlet, and the flexible buffer pipe is used to buffer the packages entering the flexible buffer pipe; and

[0009] A guide chute connects and positions the discharge port.

[0010] In one of the embodiments, the flexible buffer pipe includes at least an elastic buffer surface, and the buffer surface is used to elastically receive the package in the flexible buffer pipe.

[0011] In one embodiment, the buffer surface is a structure having a plurality of alternating concave and convex grooves and convex strips.

[0012] In one of the embodiments, a drainage hole is provided in the groove.

[0013] In one of the embodiments, the flexible buffer pipe is a multi-fold corrugated structure having a plurality of alternating concave and convex grooves and convex strips.

[0014] In one of the embodiments, the flexible buffer pipe is made of at least PVC and polyester mesh.

[0015] In one of the embodiments, an adsorption rubber ring is provided at the discharge port of the flexible buffer pipe, and a guide chute is inserted into the flexible buffer pipe from the discharge port, and the adsorption rubber ring is abutted against the outside of the guide chute.

[0016] In one of the embodiments, the angle α between the tangent direction of the guide groove surface and the horizontal direction is 27° to 30°.

[0017] In one embodiment, the guide groove surface is spiral; or

[0018] The guide slide groove is a single-section straight slide groove.

[0019] In one of the embodiments, the guide chute is disposed on a support frame, and the support frame is height-adjustable so that the vertical distance between the guide chute and the sorting platform is adjustable.

[0020] The above-mentioned sorting device is equipped with a flexible buffer pipe and a guide chute at the drop port. When the package falls from the drop port, it enters the flexible buffer pipe from the feed port of the flexible buffer pipe. The flexible buffer pipe is flexible. During the falling process, the package hits the inner wall of the flexible buffer pipe and forms a buffer to prevent the package from being broken. After the package is buffered in the flexible buffer pipe, the sliding speed of the package can also be reduced. The package eventually slides out of the discharge port of the flexible buffer pipe at a slower speed and enters the guide chute. This solves the problem in the prior art that the package is easily deformed or even damaged after hitting the chute during the sorting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic structural diagram of a sorting device in an embodiment of the present application is shown;

[0022] Figure 2 A schematic diagram of the assembly structure of a flexible buffer pipe and a guide chute included in a sorting device in an embodiment of the present application is shown;

[0023] Figure 3 A front view of a sorting device in another embodiment of the present application is shown;

[0024] Figure 4 Shows Figure 3 A side view of the sorting device shown;

[0025] Figure 5Shows Figure 3 A top view of the sorting device is shown.

[0026] Figure numerals: 100, sorting platform; 110, drop port; 200, flexible buffer pipe; 210, feed port; 220, discharge port; 230, buffer surface; 240, fastening assembly; 250, bolt; 260, adsorption rubber ring; 300, guide chute; 400, collection container; 500, AGV robot; 600, package; 700, support frame; 800, return package conveyor line. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0028] The sorting device can be used to sort the parcels 600 in the field of logistics technology. Logistics is a comprehensive field that includes processes such as procurement, packaging, warehousing, and transportation. Before transportation, the parcels 600 are usually divided according to their destinations in the parcel 600 sorting workshop. Before the parcels 600 are sorted, the parcels 600 from many regions are mixed together. During sorting, the parcels 600 with the same destination in the same province can be sorted out from the parcel pile and gathered together according to certain standards, such as by province. The sorting device can be used to complete the above sorting process.

[0029] like Figure 1 As shown, Figure 1 The schematic diagram of the structure of a sorting device in one embodiment of the present application is shown, and the sorting device may include a sorting platform 100, and the sorting platform 100 is used to convey unsorted parcels 600. A drop port 110 is provided on the sorting platform 100, for example, a plurality of drop ports 110 are provided on the sorting platform 100, and parcels 600 of the same province may be dropped from the same drop port 110 and parcels 600 of different provinces may be dropped from different drop ports 110 according to certain sorting standards, thereby realizing the sorting of parcels 600 by province.

[0030] In one embodiment, the AGV robot 500 can be used to sort the parcel 600. The AGV robot 500 itself is equipped with an electromagnetic guidance device and a guide track, and has navigation and positioning functions, and also has the ability to carry and autonomously process the parcel 600. In other embodiments, the AGV robot 500 can also work in the form of identification code and inertial navigation. For example, a plurality of code distance units for the AGV robot 500 to walk are divided on the sorting platform 100, and an identification code is attached to each code distance unit. The identification code can be a two-dimensional code or a bar code. The AGV robot 500 is provided with a camera, and when the AGV robot 500 passes through the identification code, it is identified and read to obtain positioning information. Further, the identification code can be set at the center position of the code distance unit, that is, the identification code is not set continuously, and the AGV robot 500 may still produce a position offset in the process of walking from one identification code to another. To this end, positioning and navigation are achieved by inertial navigation, that is, using an inertial gyroscope.

[0031] Generally, multiple AGV robots 500 are combined and used to replace manual work to sort the packages 600. The AGV robot 500 carries the package 600 and moves on the sorting platform 100. It can determine which drop port 110 the package 600 needs to drop from based on information such as the barcode on the package 600, and then consign the package 600 to the corresponding drop port 110, and then flip the package 600 to drop from the drop port 110. Figure 1A flexible buffer pipe 200 and a guide chute 300 are installed at the drop port 110. Specifically, the flexible buffer pipe 200 has a feed port 210 and a discharge port 220. The feed port 210 is connected to the drop port 110, and the discharge port 220 is connected to the guide chute 300. When the package 600 falls from the drop port 110, it enters the flexible buffer pipe 200 from the feed port 210 of the flexible buffer pipe 200. The flexible buffer pipe 200 is flexible. During the falling process, the package 600 hits the inner wall of the flexible buffer pipe 200 and forms a buffer to prevent the package 600 from being broken. After the package 600 is buffered in the flexible buffer pipe 200, the sliding speed of the package 600 can also be reduced. The package 600 finally slides out of the discharge port 220 of the flexible buffer pipe 200 at a slower speed and enters the guide chute 300. Since the flexible buffer pipe 200 is flexible, its discharge port 220 may swing arbitrarily. After the guide chute 300 is connected to the discharge port 220, the guide chute 300 can fix the discharge port 220 of the flexible buffer pipe 200, that is, the guide chute 300 can position the discharge port 220 so that the packages 600 that slide out of the flexible buffer pipe 200 can be collected at a uniform position. In some embodiments, the guide chute 300 is also connected to a collection container 400, which can be a collection bag or a collection frame, etc. The package 600 enters the collection container 400 for storage after being guided by the guide chute 300.

[0032] Furthermore, if Figure 1 As shown, the sorting platform 100, the flexible buffer pipe 200 and the guide chute 300 in the sorting device are usually arranged from top to bottom, so that when the package 600 falls from the drop port 110, it can slide out of the guide chute 300 under the action of gravity without providing other power for pushing the package 600 to move in the flexible buffer pipe 200 and the guide chute 300.

[0033] like Figure 1 As shown, the guide chute 300 can be adjusted in the horizontal direction. For example, the guide chute 300 can be supported on the ground by a support frame 700, and the user can push the guide chute 300 to move in the horizontal direction, thereby adjusting the position of the discharge port 220. Usually, the discharge port 220 is not set directly below the feed port 210, but is offset from the feed port 210 in the horizontal direction, so that the package 600 usually contacts the inner wall of the flexible buffer pipe 200 after falling, rather than directly coming out of the discharge port 220 after falling through the drop port 110. In addition, since the flexible buffer pipe 200 is flexible, it can also ensure that the guide chute 300 can be freely moved within a certain range, which improves the convenience of adjustment.

[0034] In one embodiment, the support frame 700 is a support frame 700 with adjustable height, and the height between the guide chute 300 and the sorting platform 100 can be adjusted by adjusting the height of the support frame 700. This is because the installation space for fire protection, lighting and HVAC, etc., usually needs to be reserved below the sorting platform 100, and the space for personnel operation usually needs to be reserved below the sorting platform 100. Therefore, the height of the sorting platform 100 from the ground is usually high. In some embodiments, the height of the sorting platform 100 from the ground can reach 2200mm, and the height of the collection container 400 can reach 500mm. Then the sorting sliding height difference of the package 600 is 2200mm minus 500mm, and the obtained sorting sliding height can reach 1700mm. After the AGV robot 500 sorts the package 600, the package 600 will generate a certain acceleration in the process of sliding to the collection container 400, which is easy to collide with the guide chute 300, the collection container 400, etc. for multiple times, resulting in damage to the package 600. By setting the support frame 700 to be height-adjustable, the height of the support frame 700 can be flexibly adjusted according to the nature of the parcel 600. For example, for some heavy parcels 600, the support frame 700 is usually raised to shorten the height difference of the parcel 600 during sorting and sliding, thereby preventing the parcel 600 from being damaged. In addition, in this embodiment, since the height of the support frame 700 is adjustable, operators of different heights can flexibly adjust the height of the support frame 700 according to their own needs and on the basis of their own convenient operation, so that the sorting device is more ergonomic and the convenience of the operator's operation is improved.

[0035] In one embodiment, Figure 1As shown, when the AGV robot 500 flips the package 600 and makes it fall from the drop port 110, the package 600 usually contacts a fixed area on the inner wall of the flexible buffer pipe 200, so the fixed area can be called a buffer surface 230. Since the buffer surface 230 bears a large proportion of the buffering function, it is required that the buffer surface 230 is not easily damaged during long-term operation. Therefore, the buffer surface 230 can be made of a material different from the surrounding surface to increase the working performance of the buffer surface 230. For example, the buffer surface 230 can be made of an elastic material, which not only has a certain flexibility, but also can better buffer the package 600. In some special cases, if the package 600 does not directly contact the buffer surface 230 after falling, but contacts other positions on the inner wall of the flexible buffer pipe 200, since the flexible buffer pipe 200 is flexible, it can buffer the package 600 by moving its position and deforming flexibly, thereby protecting the package 600 from being damaged. In some embodiments, the buffer surface 230 can be made of rubber material, and other positions of the flexible buffer duct 200 can be made of cloth. Of course, the entire flexible buffer duct 200 can also be made of rubber. In some embodiments, the flexible buffer duct 200 can also be made of a variety of materials, for example, PVC and high-strength polyester mesh. PVC is a plastic that can be set at the pipe mouth of the flexible buffer duct 200 to reinforce the flexible buffer duct 200. The high-strength polyester mesh is a flexible material with mesh holes and has high wear resistance. Among them, the thickness of the flexible buffer duct 200 can be 5mm to 10mm, which not only ensures that the flexible buffer duct 200 has sufficient strength, but also makes the flexible buffer duct 200 light enough.

[0036] In some embodiments, the cross section of the flexible buffer pipe 200 can be set to a circle. It should be understood that since the flexible buffer pipe 200 is flexible, the circle should be understood as the shape of the cross section of the flexible buffer pipe 200 after it is fully propped up. In some embodiments, the cross section of the flexible buffer pipe 200 can also be a positive direction or a rectangle. The flexible buffer pipe 200 with a rectangular cross section is provided in the vertical direction including a top surface, a bottom surface and a side surface. It should be understood that the buffer surface 230 is generally provided on the bottom surface of the flexible buffer pipe 200. Among them, the buffer surface 230 can be a local area of ​​the bottom surface, and the buffer surface 230 can also be the entire bottom surface area.

[0037] In one embodiment, Figure 1As shown, at least the buffer surface 230 is a multi-fold corrugated structure. The multi-fold corrugated structure is similar to corrugated paper, that is, the surface is provided with a number of concave and convex grooves and ridges, and these grooves and ridges are arranged roughly parallel to each other. For example, when the package 600 is a cold chain package 600, the cold chain includes fish, shrimp and other products that need to be frozen, which are usually packaged therein, and the temperature is relatively low, so condensed water may be attached to the outer surface of the package 600. When this type of package 600 slides in the flexible buffer conduit 200, the condensed water may adhere to the inner wall of the flexible buffer conduit 200, thereby increasing the friction of the inner wall, which may cause the package 600 to stagnate in the flexible buffer conduit 200. The buffer surface 230 of the multi-fold corrugated structure has a plurality of concave-convex grooves and convex strips. When the package 600 with condensed water attached to the surface contacts the buffer surface 230, the convex strips will support the surface of the package 600, thereby reducing the contact area between the surface of the package 600 and the buffer surface 230, reducing the friction, so that the package 600 can slide smoothly in the flexible buffer pipe 200. In addition, since the buffer surface 230 of the multi-fold corrugated structure has a plurality of concave-convex grooves and convex strips, when the package 600 with condensed water attached to the surface slides in the flexible buffer pipe 200, the condensed water can be stored in the grooves. When a carton package 600 is encountered later, the convex strips can support the package 600, so that the carton will not contact the water in the groove, preventing the water from soaking the carton. In addition, drainage holes can be provided at the grooves of the multi-fold corrugated structure to timely discharge the water accumulated in the grooves.

[0038] It should be understood that the buffer surface 230 can also be a structure having a plurality of concave-convex grooves and convex strips, which is different from the above-mentioned embodiment in that the surface of the buffer surface 230 used for contacting with the package 600 is a structure having a plurality of concave-convex grooves and convex strips, while the multi-fold corrugated structure is a structure in which both opposite surfaces of the buffer surface 230 have a plurality of concave-convex grooves and convex strips. In other words, in order to allow the package 600 with condensed water attached to the surface to contact with the buffer surface 230, the convex strips will support the surface of the package 600, thereby reducing the contact area between the surface of the package 600 and the buffer surface 230 and reducing the friction, it is also possible to provide a plurality of concave-convex grooves and convex strips only on the surface of the buffer surface 230 used for contacting with the package 600. The multi-fold corrugated structure, such as Figure 1 As shown, it is a structure with good tensile and compressive properties, which can conveniently adjust the length and bending direction.

[0039] Of course, in some embodiments, the entire flexible buffer pipe 200 may also be a multi-fold corrugated structure having a plurality of concave-convex grooves and convex strips. It should be understood that the multi-fold corrugated structure is at least provided on the inner wall of the flexible buffer pipe 200. Of course, in some embodiments, the multi-fold corrugated structure may also be provided on the inner wall and the outer wall of the flexible buffer pipe 200. Preferably, the inner wall and the outer wall of the flexible buffer pipe 200 are both provided with a multi-fold corrugated structure, which has good tensile and compression properties and can conveniently adjust the length and position of the flexible buffer pipe 200.

[0040] like Figure 2 As shown, Figure 2 The figure is a schematic diagram of the assembly structure of the flexible buffer pipe 200 and the guide chute 300 in one embodiment. An adsorption rubber ring 260 is provided at the discharge port 220 of the flexible buffer pipe 200. Specifically, the adsorption rubber ring 260 is provided on the inner wall of the flexible buffer pipe 200. The guide chute 300 is inserted into the flexible buffer pipe 200 from the discharge port 220, and the adsorption rubber ring 260 is abutted against the outside of the guide chute 300. The friction between the adsorption rubber ring 260 and the guide chute 300 is relatively large, which can prevent the guide chute 300 from being separated from the flexible buffer pipe 200. Furthermore, a cable tie can be used to bind the flexible buffer pipe 200 at the discharge port 220 to further prevent the guide chute 300 from being separated from the flexible buffer pipe 200.

[0041] Furthermore, if Figure 2 As shown, a fastening assembly 240 is further provided at the feed inlet 210 of the flexible buffer pipe 200. Specifically, the fastening assembly 240 is provided on the outer surface of the flexible buffer pipe 200 and close to the feed inlet 210. The fastening assembly 240 can be fixed to the sorting platform 100 by bolts 250. The fastening assembly 240 can be fixed to the outer wall of the flexible buffer pipe 200 along a ring shape.

[0042] The flexible buffer pipe 200 in the above embodiment is provided with an adsorption rubber ring 260 at the discharge port 220, and the flexible buffer pipe 200 is tied to the guide chute 300 by a cable tie or the like; and a fastening assembly 240 is provided at the feed port 210, and the flexible buffer pipe 200 is fixed to the sorting platform 100 by a bolt 250. The above structures are all detachable structures, and when replacement is required, the flexible buffer pipe 200, the guide chute 300 and the sorting platform 100 can be easily disassembled and reinstalled, which makes the operation simple and convenient.

[0043] like Figure 1As shown, after the package 600 passes through the flexible buffer pipe 200, it enters the guide chute 300 through the discharge port 220, and enters the collection container 400 under the guidance of the guide chute 300. The speed of the package 600 has been reduced by the flexible buffer pipe 200. After the package 600 enters the guide chute 300, in order to prevent the sliding speed of the package 600 from further increasing, it is necessary to control the slope of the guide chute 300, that is, to make the chute surface in the guide chute 300 slide down smoothly. The chute surface is the surface in the guide chute 300 used to guide the package 600 to slide down. In some embodiments, the angle α between the tangent direction of the chute surface of the guide chute 300 and the horizontal direction is 27° to 30°. It has been found through experiments that within this angle range, the package 600 can slide down smoothly, and it can also ensure that the package 600 does not slide down too fast.

[0044] In some embodiments, the chute surface in the guide chute 300 can be spiral, that is, the chute surface extends downward in a spiral track. Specifically, the spiral chute surface can be manufactured by stamping technology. Compared with the traditional straight chute formed by splicing multiple sections, the chute surface of the spiral chute is more stable, without sudden corners and slopes, and the package 600 slides more smoothly along the spiral chute surface. Of course, in some embodiments, the guide chute 300 can also be a single-section straight chute.

[0045] Figure 3 This is a front view of a sorting device in another embodiment of the present application. Figure 4 for Figure 3 A side view of the sorting device shown, Figure 5 for Figure 3 The top view of the sorting device shown in FIG. Figure 3 , Figure 4 and Figure 5 As shown, a plurality of drop ports 110 may be provided on the sorting platform 100 of the sorting device, and each drop port 110 is provided with the flexible buffer channel, guide chute 300 and collection container 400 in the above-mentioned embodiment. A plurality of AGV robots 500 may run on the sorting platform 100 at the same time, and according to the information on the package 600, the package 600 is moved to the corresponding drop port 110 and flipped down from the drop port 110. After the package 600 is buffered by the flexible buffer channel connected to the drop port 110, the package 600 is guided to the collection container 400 for storage through the guide chute 300. Figure 3 As shown, the sorting device also includes a package return conveyor line 800. When the collection container 400 is full, the staff can place the collection container 400 on the package return conveyor line 800 and transport the collection container 400 to the destination through the package return conveyor line 800.

[0046] In the description of the present invention, it should 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", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0047] In addition, the terms "first" and "second" 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, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0050] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0051] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A sorting device, characterized in that: include: A sorting platform (100), the sorting platform (100) being used to transport the packages (600), the sorting platform (100) being provided with a drop opening (110) for the packages (600) to pass through; A flexible buffer pipe (200) having a feed inlet (210) and a discharge outlet (220), wherein a fastening assembly (240) is arranged at the feed inlet (210), the feed inlet (210) is connected to the discharge outlet (110), the flexible buffer pipe (200) is used to buffer a package (600) entering the flexible buffer pipe (200), the flexible buffer pipe (200) at least comprises an elastic buffer surface (230), the buffer surface (230) is used to elastically receive the package (600) in the flexible buffer pipe (200), the buffer surface (230) is a structure having a plurality of concave-convex alternate grooves and convex strips, and drainage holes are arranged at the grooves; and The guide chute (300) is connected to and positions the discharge port (220).

2. The sorting device according to claim 1, characterized in that: The sorting platform (100), the flexible buffer pipe (200) and the guide chute (300) are arranged from top to bottom.

3. The sorting device according to claim 1, characterized in that: The slide groove surface in the guide slide groove (300) is spiral.

4. The sorting device according to claim 3, characterized in that: The slide groove surface is made by stamping technology.

5. The sorting device according to claim 1, characterized in that: The flexible buffer pipe (200) is a multi-fold corrugated structure having a plurality of concave and convex grooves and convex strips alternately arranged.

6. The sorting device according to claim 5, characterized in that: The flexible buffer pipe (200) is made of at least PVC and polyester mesh.

7. The sorting device according to claim 1, characterized in that: An adsorption rubber ring (260) is provided at the discharge port (220) of the flexible buffer pipe (200), and the guide slide groove (300) is inserted into the flexible buffer pipe (200) from the discharge port (220), and the adsorption rubber ring (260) is abutted against the outside of the guide slide groove (300).

8. The sorting device according to claim 1, characterized in that: The included angle α between the tangent direction of the guide slide groove (300) and the horizontal direction is 27° to 30°.

9. The sorting device according to claim 1, characterized in that: The guide groove (300) has a spiral groove surface; or The guide slide groove (300) is a single-section straight slide groove.

10. The sorting device according to claim 1, characterized in that: The guide chute (300) is arranged on a support frame (700), and the support frame (700) can be adjusted in height so that the distance between the guide chute (300) and the sorting platform (100) in the vertical direction can be adjusted.

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