A sorting trolley tray unloading device, a sorting trolley and a sorting system

Abstract

The present invention relates to the technical field of item sorting, and discloses a sorting cart tray unloading device, a sorting cart and a sorting system. The sorting cart tray unloading device includes a supporting lever, which is rotatably connected to the frame body of the sorting cart and has at least two triggering tracks thereon; a triggering member, which can move in cooperation with one of the triggering tracks to separate the supporting lever from the tray; different triggering tracks have different starting moments of moving in cooperation with the triggering member. The present invention provides at least two triggering tracks on the supporting lever and makes the starting moments of different triggering tracks moving in cooperation with the triggering member different; adjusts the height of the triggering member according to the running speed of the sorting cart, so that during the process of the sorting cart moving forward on the sorting track, the triggering member moves in cooperation with the corresponding triggering track, driving the supporting lever to rotate to separate the supporting lever from the tray, realizing the unloading of the items on the tray, and solving the problems of inconsistent and inaccurate item landing points when the sorting cart runs at different speeds.

Description

Technical Field

[0001] The present invention relates to the technical field of item sorting, and particularly to a pallet unloading device for a sorting trolley, a sorting trolley, and a sorting system. Background Art

[0002] Drop sorting systems usually adopt sorting trolleys with double-opening pallets or single-opening pallets. For a sorting trolley with a support mechanism arranged below the pallet to support the pallet, an unloading mechanism is usually used to trigger the support mechanism so that the support mechanism is separated from the pallet. After the pallet loses the support of the support mechanism, it will swing downward relative to the frame body of the sorting trolley under the action of its own gravity and the gravity of the items thereon, so that the items fall, realizing the unloading of the items.

[0003] The sorting trolley of the drop sorting system has multiple speed gears, and the sorting running speed is adjusted according to the number of sorted items and the time limit requirements. Since the unloading mechanism is fixedly installed on the rack of the sorting system, that is, the position of the unloading mechanism does not change, the time when the unloading mechanism triggers the support mechanism to separate the support mechanism and the pallet will not change. When the speed difference between different gears is large, the initial velocities of the items moving in a parabolic motion are quite different. Due to the unchanged trigger time point, the landing positions of the items will be different, which is likely to cause sorting errors of the items. Summary of the Invention

[0004] The purpose of the present invention is to provide a pallet unloading device for a sorting trolley, a sorting trolley, and a sorting system, which can adapt to sorting trolleys with different running speeds and can ensure the correct sorting rate of items.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A pallet unloading device for a sorting trolley includes:

[0007] A supporting lever, rotatably connected to the frame body of the sorting trolley, for supporting the pallet of the sorting trolley to make the pallet in a carrying state, and at least two trigger tracks are arranged on the supporting lever;

[0008] A trigger member, which can be movably matched with one of the trigger tracks to separate the supporting lever from the pallet; the starting moments of different trigger tracks moving in cooperation with the trigger member are different.

[0009] As a preferred technical solution of the above pallet unloading device for a sorting trolley, the trigger member is a roller.

[0010] As a preferred technical solution of the above pallet unloading device for a sorting trolley, it further includes a trigger drive, which is rotatably connected to the trigger member, and the trigger drive can drive the trigger member to lift and lower.

[0011] As a preferred technical solution of the above-mentioned pallet unloading device of the sorting trolley, it further includes an elastic reset member, which can rotate the supporting lever relative to the vehicle frame body to under the pallet in the carrying state to support the pallet.

[0012] As a preferred technical solution of the above-mentioned pallet unloading device of the sorting trolley, it further includes:

[0013] A locking hook, one end of which is rotatably connected to the vehicle frame body, and the other end can be inserted into the supporting lever to keep the supporting lever separated from the pallet.

[0014] As a preferred technical solution of the above-mentioned pallet unloading device of the sorting trolley, a hook portion is provided at one end of the locking hook, and a hook groove for hooking the hook portion is provided at one end of the supporting lever.

[0015] As a preferred technical solution of the above-mentioned pallet unloading device of the sorting trolley, a triggering portion is provided on the locking hook, and the triggering portion is above the pallet and can abut against the pallet.

[0016] The present invention also provides a sorting trolley, which includes a vehicle frame body, a pallet rotatably connected to the vehicle frame body, and the above-mentioned pallet unloading device of the sorting trolley.

[0017] As a preferred technical solution of the above-mentioned sorting trolley, a flanging is provided at the edge of the pallet.

[0018] The present invention also provides a sorting system, which includes the above-mentioned sorting trolley.

[0019] Advantages of the present invention: By providing at least two triggering tracks on the supporting lever and making the starting moments of the movement cooperation between different triggering tracks and the triggering member different; adjusting the height of the triggering member according to the running speed of the sorting trolley, so that during the forward movement of the sorting trolley on the sorting track, the triggering member moves in cooperation with the corresponding triggering track, thereby driving the supporting lever to rotate relative to the vehicle frame body, separating the supporting lever from the pallet, realizing the unloading of the items on the pallet, and making the items fall at an accurate position, solving the problems of inconsistent and inaccurate landing points of the items when the sorting trolley runs at different speeds. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative work, other drawings can also be obtained according to the content of the embodiments of the present invention and these drawings.

[0021] Figure 1 is a partial structural schematic diagram of the sorting trolley provided by an embodiment of the present invention;

[0022] Figure 2 is a structural schematic diagram of the supporting lever provided by an embodiment of the present invention;

[0023] Figures 3 to 6 is a process state diagram of the unloading of the sorting trolley provided by an embodiment of the present invention;

[0024] Figures 7 to 9 is a process state diagram of the cooperation between the trigger track and the trigger during the unloading process of the sorting trolley provided by an embodiment of the present invention.

[0025] In the figure:

[0026] 11, frame body; 12, tray; 13, flanging;

[0027] 21, supporting lever; 211, trigger track; 212, hooking groove; 22, trigger; 23, trigger drive;

[0028] 3, locking hook; 31, hooking part; 32, trigger part. Detailed implementation manners

[0029] To make the technical problems solved by the present invention, the technical solutions adopted and the achieved technical effects clearer, the technical solutions of the present invention will be further described below in conjunction with the drawings and through specific implementation manners. It can be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Additionally, it should be noted that for the sake of convenience of description, only parts related to the present invention are shown in the drawings rather than all.

[0030] As Figure 1 shown, this embodiment provides a sorting trolley tray unloading device, a sorting trolley and a sorting system, including a supporting lever 21 and a trigger 22. The sorting system includes multiple sorting trolleys and sorting tracks. The multiple sorting trolleys are connected end to end and can move on the sorting tracks. Each sorting trolley includes a tray 12 and a frame body 11 provided with an unloading port. The tray 12 is rotatably connected to the frame body 11 to open or close the unloading port. When the tray 12 is in the loading state, it can support items. This embodiment takes the sorting trolley with a double-opening tray 12 as an example. Through the sorting trolley tray unloading device in this embodiment, two trays 12 in the loading state are rotated by a certain angle relative to the frame body 11 to open the unloading port, so that the items supported by the tray 12 fall from the current unloading port.

[0031] As Figure 1 and Figure 2As shown in the figure, the above-mentioned sorting trolley tray unloading device includes a supporting lever 21 and a triggering member 22. Among them, the supporting lever 21 is rotatably connected to the frame body 11 of the sorting trolley and is used to support the tray 12 of the sorting trolley so that the tray 12 is in a carrying state. Preferably, the supporting lever 21 can directly support the lower surface of the tray 12. In other embodiments, an extension portion can also be provided on the tray 12, and the supporting lever 21 supports the extension portion to achieve the purpose of keeping the tray 12 in a carrying state. Preferably, a roller is provided at one end of the supporting lever 21 for supporting the tray 12, and the roller is rotatably connected to the supporting lever 21 to reduce the friction between the supporting lever 21 and the tray 12 when the supporting lever 21 supports the tray 12. In other embodiments, the roller can also be fixed relative to the supporting lever 21, but in this case, the friction between the supporting lever 21 and the tray 12 is relatively large.

[0032] At least two triggering tracks 211 are provided on the supporting lever 21, and the triggering member 22 can move in cooperation with one of the triggering tracks 211 to separate the supporting lever 21 from the tray 12; the starting moments of different triggering tracks 211 moving in cooperation with the triggering member 22 are different. In this embodiment, an example is given where two triggering tracks 211 are provided on the supporting lever 21.

[0033] In this embodiment, by providing at least two triggering tracks 211 on the supporting lever 21 and making the starting moments of different triggering tracks 211 moving in cooperation with the triggering member 22 different; adjusting the height of the triggering member 22 according to the running speed of the sorting trolley, so that during the process of the sorting trolley moving forward on the sorting track, the triggering member 22 moves in cooperation with the corresponding triggering track 211, thereby driving the supporting lever 21 to rotate relative to the frame body 11, separating the supporting lever 21 from the tray 12, realizing the unloading of the items on the tray 12, and making the items fall at an accurate position, improving the accuracy when the tray 12 of the sorting trolley is unloaded.

[0034] In this embodiment, the above-mentioned triggering member 22 is a rotatable roller, and the above-mentioned sorting trolley tray unloading device further includes a triggering drive 23. The triggering drive 23 can be a linear drive structure such as a cylinder, an oil cylinder, an electric push rod, etc. The movable end of the triggering drive 23 is rotatably connected to the triggering member 22, and the triggering member 22 is driven by the triggering drive 23 to move up and down so that the triggering member 22 moves in cooperation with one of the triggering tracks 211. In other embodiments, the above-mentioned triggering member 22 can also be a specific curve that moves in cooperation with the tray 12, which will not be specifically limited here. The above-mentioned triggering drive 23 is not limited to driving the triggering member 22 to move up and down to move in cooperation with different triggering tracks 211, and can also make the triggering member 22 move in cooperation with different triggering tracks 211 in other ways, which will not be specifically limited here.

[0035] In this embodiment, the trigger drive 23 can also adjust the height of the trigger member 22 so that the trigger member 22 does not contact the trigger track 211. That is, when the sorting trolley passes through the position where the trigger drive 23 is located during walking, the supporting lever 21 does not move, continues to support the tray 12, and the tray 12 is not unloaded.

[0036] Further, after the tray 12 is unloaded, the tray 12 needs to return to the loading state for the next loading. The tray 12 in the restored loading state needs to be supported by the supporting lever 21. Therefore, the above sorting trolley tray unloading device further includes an elastic reset member, which can make the supporting lever 21 separated from the locking hook 3 rotate relative to the vehicle frame body 11 to support the tray 12 in the loading state. The above elastic reset member is a torsion spring. In other embodiments, the above elastic reset member can also be a tension spring. One end of the tension spring is connected to one end of the supporting lever 21, and the other end is connected to the vehicle frame body 11. When the tray 12 is about to return to the loading state, the tension spring will pull the supporting lever 21 to rotate relative to the vehicle frame body 11, so that the supporting lever 21 rotates to the lower side of the tray 12 in the loading state to support the tray 12.

[0037] Further, as the sorting trolley moves forward on the sorting track, the trigger member 22 will gradually disengage from the trigger track 211. In order to prevent the supporting lever 21 from rotating relative to the vehicle frame body 11 under the action of the elastic reset member and affecting the falling of the articles, the above sorting trolley tray unloading device further includes a locking hook 3. One end of the locking hook 3 is rotatably connected to the vehicle frame body 11, and the other end can be inserted into the supporting lever 21 to keep the supporting lever 21 separated from the tray 12, so that the supporting lever 21 remains in a separated state from the tray 12 after the trigger member 22 disengages from the trigger track 211.

[0038] Specifically, the locking hook 3 is provided with a trigger portion 32. The trigger portion 32 is located above the tray 12 and can abut against the tray 12. When the tray 12 is in the loading state, the trigger portion 32 is supported by the tray 12. The edge of the tray 12 is provided with a flange 13, and the trigger portion 32 is located above the flange 13. When the tray 12 is in the loading state, the trigger portion 32 is supported by the flange 13.

[0039] The supporting lever 21 is located below the vehicle frame body 11. One end of the locking hook 3 is provided with a hooking portion 31, and one end of the supporting lever 21 is provided with a hooking groove 212 for hooking the hooking portion 31. After the trigger member 22 contacts the trigger track 211 on the supporting lever 21, since the tray 12 will swing downward under the action of its own gravity and the gravity of the articles thereon, the trigger portion 32 on the locking hook 3 will be separated from the tray 12, and the locking hook 3 will lose the supporting effect of the tray 12 and rotate relative to the vehicle frame body 11, so that the hooking portion 31 on the locking hook 3 is inserted into the hooking groove 212 on the supporting lever 21, realizing that the locking hook 3 blocks the supporting lever 21 from rotating relative to the vehicle frame body 11 under the action of the elastic reset member.

[0040] As shown Figures 3 to 9 in the figure Figures 3 to 9 The direction of the arrow in the figure indicates the forward direction of the sorting trolley. The working process of the tray unloading device of the sorting trolley provided in this embodiment is as follows:

[0041] According to the current running speed of the sorting trolley, the trigger drive 23 is used to adjust the height of the trigger 22 so that the trigger 22 can move in cooperation with the corresponding trigger track 211.

[0042] When the sorting trolley travels to the position where the trigger 22 is located, the trigger 22 will contact the trigger track 211. As the sorting trolley moves forward, the trigger 22 will slide along the trigger track 211, and cause the supporting lever 21 to rotate relative to the vehicle frame body 11, separating the supporting lever 21 from the tray 12; the tray 12 will swing downward under the action of its own gravity and the gravity of the items thereon, and the locking hook 3 will separate from the flange 13 on the tray 12. Losing the support of the flange 13, the locking hook 3 will also swing downward relative to the vehicle frame body 11, causing the hook portion 31 of the locking hook 3 to be caught in the hook slot 212 on the supporting lever 21; as the sorting trolley moves forward, the trigger 22 will separate from the trigger track 211, and the supporting lever 21 will remain in the current state under the action of the locking hook 3, facilitating the unloading of the items on the tray 12 and avoiding interference of the supporting lever 21 with the reset of the unloaded tray 12.

[0043] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

[0044] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, 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 on the present invention. In addition, the terms "first", "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A sorting trolley tray unloading device, characterized in that: include: A supporting lever (21) is rotatably connected to the frame body (11) of the sorting trolley and is used to support the tray (12) of the sorting trolley so that the tray (12) is in a load-bearing state. The supporting lever (21) is provided with at least two trigger rails (211); a trigger member (22), the trigger member (22) being capable of being raised and lowered to move in conjunction with one of the trigger rails (211) to separate the supporting lever (21) from the tray (12); different trigger rails (211) have different starting moments for moving in conjunction with the trigger member (22); Also includes: A locking hook (3) has one end rotatably connected to the vehicle frame (11), and the other end capable of being plugged into the supporting lever (21) to keep the supporting lever (21) and the tray (12) in a separated state.

2. The sorting trolley tray unloading device according to claim 1, characterized in that: The triggering member (22) is a roller.

3. The sorting trolley tray unloading device according to claim 1, characterized in that: It also includes a trigger drive (23) which is rotatably connected to the trigger member (22), and the trigger drive (23) can drive the trigger member (22) to rise and fall.

4. The sorting trolley tray unloading device according to claim 1, characterized in that: It also includes an elastic reset member capable of rotating the supporting lever (21) relative to the vehicle frame (11) to below the tray (12) in a load-bearing state to support the tray (12).

5. The sorting trolley tray unloading device according to claim 1, characterized in that: One end of the lock hook (3) is provided with a hook portion (31), and one end of the supporting lever (21) is provided with a hook groove (212) for hooking the hook portion (31).

6. The sorting trolley tray unloading device according to claim 1, characterized in that: A trigger portion (32) is provided on the lock hook (3); the trigger portion (32) is located above the tray (12) and is capable of abutting against the tray (12).

7. A sorting trolley, characterized in that: It comprises a vehicle frame (11), a tray (12) rotatably connected to the vehicle frame (11), and a sorting vehicle tray unloading device according to any one of claims 1 to 6.

8. The sorting trolley according to claim 7, characterized in that: The edge of the tray (12) is provided with a flange (13).

9. A sorting system, characterized in that: Including the sorting trolley described in claim 7 or 8.

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