Goods sorting system for fixed goods shelf

Abstract

The utility model discloses a goods sorting system aiming at a fixed goods shelf, the fixed goods shelf is provided with a storage grid opening, and a goods box is arranged in the storage grid opening; the cargo sorting system comprises a moving seat and a container taking mechanism mounted on the moving seat, and the container taking mechanism can take out the containers and put the containers into the storage grid openings; the sorting mechanism is arranged on the fixed goods shelf, and the position of the sorting mechanism is fixed; the driving mechanism is used for driving the moving seat to move; the driving mechanism enables the movable base to reach any storage grid opening in the fixed goods shelf and reach any sorting mechanism. According to the goods sorting system, the containers can be quickly conveyed to the sorting mechanism to complete sorting after being taken out and returned to the goods shelf, the situation that the containers are conveyed to a sorting assembly line to be sorted through a material box robot and then returned to the goods shelf is not needed, the number of devices is reduced, the number of intermediate links is small, and the whole goods sorting system is small in occupied space and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of cargo picking, in particular to a cargo picking system for fixed shelves. Background Art

[0002] The current automatic sorting technology is developing rapidly and can replace a large number of manual labor with low error rate and high efficiency. In the prior art, the picking system for fixed shelves is relatively complicated and needs to be taken out from the shelves by the material box robot shown in patent CN117401611A. The material box robot has multiple material box buffer plates, takes out the material box by clamping forks, stores the material box on each material box buffer plate by lifting mechanism, and then moves the material box to the sorting production line. After sorting, the material box must be returned to the fixed shelf. The picking system based on the material box robot requires a large space for layout, and because the material box robot can carry fewer material boxes at a time, its picking efficiency is also low. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides a cargo picking system for fixed shelves which has high efficiency and requires little layout space.

[0004] Technical solution: To achieve the above-mentioned purpose, the utility model is a cargo picking system for a fixed shelf, wherein the fixed shelf has a storage compartment, and the storage compartment has a cargo box; the cargo picking system includes a mobile seat and a box-taking mechanism installed on the mobile seat, and the box-taking mechanism can take out the cargo box and put it into the storage compartment;

[0005] Also included is at least one fixed position picking mechanism disposed on the fixed shelf;

[0006] It also includes a driving mechanism for driving the mobile seat to move; the driving mechanism enables the mobile seat to reach any storage grid on the fixed shelf and to reach any picking mechanism.

[0007] Furthermore, each of the picking mechanisms has a corresponding collecting unit; the picking mechanism can place the picked items into the collecting unit.

[0008] Furthermore, a plurality of the picking mechanisms are installed equidistantly on the lower side of the fixed shelf.

[0009] Furthermore, the movable seat is provided with a plurality of cargo box accommodating positions, and the box taking mechanism can move the cargo box into and out of the cargo box accommodating positions.

[0010] Furthermore, the picking mechanism includes a robotic arm and a suction cup and / or a gripper installed at the execution end of the robotic arm.

[0011] Furthermore, the picking mechanism is capable of moving the cargo collection unit.

[0012] Furthermore, the driving mechanism includes a fixed beam connected to the fixed shelf, and also includes a movable beam capable of translating relative to the fixed beam; the fixed beam and the movable beam are arranged vertically, and the movable seat is installed on the movable beam and can move along the movable beam.

[0013] Furthermore, the relative movement between the fixed beam and the movable beam is driven by a first gear rack mechanism; the movement of the movable seat relative to the fixed beam is driven by a second gear rack mechanism.

[0014] Furthermore, the box-taking mechanism includes a conveyor belt and a suction cup mechanism capable of translational movement above the conveyor belt.

[0015] Furthermore, the box-taking mechanism is a fork-holding mechanism, which includes two telescopic arms, each of which is provided with a claw at the end thereof, and the claw can be switched between an upright state and a horizontal state; a pushing unit is provided between the two telescopic arms.

[0016] (1) After the cargo box is taken out, it can be quickly sent to the picking mechanism to complete the picking and return the cargo box to the shelf. There is no need for the material box robot to move the cargo box to the picking assembly line for picking and then return it to the shelf. This reduces the number of equipment and the number of intermediate links. The entire cargo picking system occupies less space and has low costs.

[0017] (2) The flexibility of the driving mechanism to drive the moving seat to move is much more flexible than that of the material box robot in picking up and placing the material box. The speed of picking up and placing the material box is improved, which can further improve efficiency;

[0018] (3) The driving mechanism enables the movable seat to move over a large range and is easy to expand. When the shelf needs to be lengthened or widened, it is only necessary to expand the length of the fixed beam, movable beam and rack accordingly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view structural diagram of the goods picking system for fixed shelves of the first embodiment;

[0020] Figure 2 for Figure 1 The enlarged structure diagram of part A in the middle;

[0021] Figure 3 This is a structural diagram of a box taking mechanism in an embodiment;

[0022] Figure 4 A diagram showing a first state of a box taking mechanism in another embodiment;

[0023] Figure 5A second state diagram of a box taking mechanism in another embodiment;

[0024] Figure 6 It is a three-dimensional structural diagram of a goods picking system for a fixed shelf according to a second embodiment;

[0025] Figure 7 for Figure 6 Enlarged structural diagram of part B.

[0026] In the figure: 1-mobile seat; 11-cargo box storage position; 2-cargo box retrieval mechanism; 21-conveyor belt; 22-suction cup mechanism; 23-pushing unit; 24-telescopic arm; 25-claw; 3-fixed shelf; 31-storage grid; 32-cargo box; 4-picking mechanism; 41-mechanical arm; 5-driving mechanism; 51-fixed beam; 52-movable beam; 53-first gear rack mechanism; 54-second gear rack mechanism; 6-cargo collection unit. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings.

[0028] First embodiment

[0029] like Figure 1 The cargo picking system for a fixed shelf shown in the figure has a fixed shelf 3 having a storage compartment 31, and a cargo box 32 in the storage compartment 31; the cargo picking system includes a mobile seat 1 and a box-taking mechanism 2 installed on the mobile seat 1, and the box-taking mechanism 2 can take out the cargo box 32 and put it into the storage compartment 31; the cargo picking system also includes at least one fixed picking mechanism 4 arranged on the fixed shelf 3.

[0030] The cargo picking system further comprises a driving mechanism 5 for driving the movable seat 1 to move; the driving mechanism 5 enables the movable seat 1 to reach any storage compartment 31 on the fixed shelf 3 and any picking mechanism 4 .

[0031] Each of the picking mechanisms 4 has a corresponding collecting unit 6 ; the picking mechanism 4 can place the picked items into the collecting unit 6 .

[0032] When the length of the fixed shelf 3 is long, a plurality of picking mechanisms 4 may be installed equidistantly on the lower side of the fixed shelf 3 .

[0033] With the above structure, the control system confirms the target storage grid according to the picking task, which can be an order task or a wave task consisting of multiple orders. The control system controls the driving mechanism 5 to drive the mobile seat 1 to operate, so that the mobile seat 1 moves to the location of the target storage grid, so that the box-taking mechanism 2 aligns with the target storage grid, and then controls the box-taking mechanism 2 to take out the cargo box 32 in the target storage grid; the driving mechanism 5 then moves the mobile seat 1 to the picking mechanism 4, and the picking mechanism 4 takes out the target quantity of goods from the cargo box 32 and transfers them to the cargo collection unit 6. When all the goods included in the picking task are collected, the external transportation mechanism takes away the cargo collection unit 6 as a whole, or only takes away the goods in the cargo collection unit 6.

[0034] When there are multiple picking mechanisms 4, when the picking task is an order task, the mobile seat 1 is controlled to move to the same picking mechanism 4 for picking. When the picking task is a wave order, the control system controls the mobile seat 1 to move to the nearest picking mechanism 4 for picking according to the target storage slot.

[0035] With the above structure, after the cargo box 32 is taken out, it can be quickly sent to the picking mechanism 4 to complete the picking and return the cargo box 32 to the shelf 3. It is not necessary to transfer the cargo box 32 to the picking assembly line for picking and then return it to the shelf through the material box robot, which reduces the number of equipment, reduces the number of intermediate links, and the entire cargo picking system occupies less space and has low cost. In addition, the flexibility of the driving mechanism 5 to drive the moving seat 1 to move is much more flexible than the material box robot to pick up and put the material box, and the speed of picking and putting the material box is improved, which can further improve efficiency.

[0036] The picking mechanism 4 includes a mechanical arm 41 and a suction cup and / or a gripper installed at the execution end of the mechanical arm 41. Preferably, the picking mechanism 4 includes both a suction cup and a gripper, so that the suction cup can be used to suck the goods or the gripper can be used to grab the goods according to the characteristics of the goods.

[0037] The picking mechanism 4 can move the cargo collection unit 6 . After a picking task is completed, the robot arm 41 can transfer the cargo collection unit 6 through a claw or a special grabbing mechanism installed at the end of the robot arm 41 .

[0038] like Figure 1-2 As shown, the driving mechanism 5 includes a fixed beam 51 connected to the fixed shelf 3, and also includes a movable beam 52 that can translate relative to the fixed beam 51; the fixed beam 51 and the movable beam 52 are arranged vertically, and the movable seat 1 is installed on the movable beam 52 and can move along the movable beam 52.

[0039] like Figure 2As shown, the relative movement between the fixed beam 51 and the movable beam 52 is driven by the first gear rack mechanism 53; the movement of the mobile seat 1 relative to the fixed beam 51 is driven by the second gear rack mechanism 54. Racks are installed on both the fixed beam 51 and the movable beam 52. With the above structure, the movable seat 1 has a large range of movement and is easy to expand. When the shelf needs to be lengthened or widened, it only needs to expand the length of the fixed beam 51, the movable beam 52 and the rack accordingly.

[0040] In one embodiment, if Figure 3 As shown, the box taking mechanism 2 includes a conveyor belt 21 and a suction cup mechanism 22 capable of translational movement above the conveyor belt 21. When taking a box, the suction cup mechanism 22 first extends to suck the cargo box 32, and then the suction cup mechanism 22 pulls back to pull the cargo box 32 out of the storage compartment 31 so that it contacts the conveyor belt 21, and then the cargo box 32 is taken out under the combined action of the suction cup mechanism 22 and the conveyor belt 21.

[0041] In another embodiment, if Figure 4 As shown, the box-taking mechanism 2 is a fork-holding mechanism, which includes two telescopic arms 24, each end of which is equipped with a claw 25, and the claw 25 can switch between an upright state and a horizontal state; a pushing unit 23 is installed between the two telescopic arms 24. When taking a box, the telescopic arm 24 is extended to make the claw 25 move to the rear side of the cargo box 32, and the rear claw 25 switches to the horizontal state (such as Figure 4 When the cargo box 32 is returned, the telescopic arm 24 is extended, and the pushing unit 23 pushes the cargo box 32 into the storage compartment 31.

[0042] Second embodiment

[0043] In this embodiment, the overall structure is consistent with that of the first embodiment, except that the movable seat 1 has a plurality of cargo box accommodating positions 11, and the box-taking mechanism 2 can move the cargo box 32 into and out of the cargo box accommodating positions 11. Figure 5-6 In the embodiment shown, the mobile seat 1 has two cargo box storage positions 11, and both cargo box storage positions 11 have box taking mechanisms 2. In this way, when performing a picking operation, the mobile seat 1 sends a cargo box 32 to the position of the picking mechanism 4. After the picking is completed, there is no need to send the cargo box 32 back to the original storage grid 31. The control system directly controls the mobile seat 1 to the next target storage grid 31, first takes out the cargo box 32 in the storage grid 31 to the empty cargo box storage position 11, and then puts the cargo box 32 that has been picked in the previous round into the cargo box storage position 11 that has just been emptied. In this way, the time for returning the cargo box 32 can be saved, and the picking efficiency can be further improved.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A cargo picking system for a fixed shelf, wherein the fixed shelf (3) has a storage compartment (31), and a cargo box (32) is provided in the storage compartment (31); It is characterized in that The cargo picking system comprises a mobile seat (1) and a box-taking mechanism (2) installed on the mobile seat (1), wherein the box-taking mechanism (2) is capable of taking out the cargo box (32) and placing it into the storage compartment (31); It also includes at least one fixed-position picking mechanism (4) arranged on the fixed shelf (3); It also includes a driving mechanism (5) for driving the movable seat (1) to move; the driving mechanism (5) enables the movable seat (1) to reach any storage compartment (31) on the fixed shelf (3) and to reach any picking mechanism (4).

2. The cargo picking system for fixed shelves according to claim 1, It is characterized in that Each of the picking mechanisms (4) has a corresponding cargo collecting unit (6); the picking mechanism (4) is capable of placing the picked articles into the cargo collecting unit (6).

3. The cargo picking system for fixed shelves according to claim 1, It is characterized in that A plurality of picking mechanisms (4) are installed at equal distances on the lower side of the fixed shelf (3).

4. The cargo picking system for fixed shelves according to claim 1, It is characterized in that The movable seat (1) is provided with a plurality of cargo box accommodating positions (11), and the cargo box taking mechanism (2) is capable of moving the cargo box (32) into and out of the cargo box accommodating positions (11).

5. The goods picking system for fixed shelves according to claim 1, It is characterized in that The picking mechanism (4) comprises a mechanical arm (41) and a suction cup and / or a gripper installed at the execution end of the mechanical arm (41).

6. The goods picking system for fixed shelves according to claim 2, It is characterized in that The picking mechanism (4) is capable of moving the collection unit (6).

7. The goods picking system for fixed shelves according to claim 1, It is characterized in that The driving mechanism (5) comprises a fixed beam (51) connected to the fixed shelf (3), and also comprises a movable beam (52) capable of translation relative to the fixed beam (51); the fixed beam (51) and the movable beam (52) are arranged vertically, and the movable seat (1) is installed on the movable beam (52) and can move along the movable beam (52).

8. The goods picking system for fixed shelves according to claim 7, It is characterized in that The relative movement between the fixed beam (51) and the movable beam (52) is driven by a first gear rack mechanism; the movement of the movable seat (1) relative to the fixed beam (51) is driven by a second gear rack mechanism.

9. The goods picking system for fixed shelves according to claim 1, It is characterized in that The box-taking mechanism (2) comprises a conveyor belt (21) and a suction cup mechanism (22) capable of translational movement above the conveyor belt (21).

10. The goods picking system for fixed shelves according to claim 1, It is characterized in that The box-taking mechanism (2) is a fork-holding mechanism, which comprises two telescopic arms (24), each end of which is provided with a claw (25), and the claw (25) is capable of switching between an upright state and a horizontal state; a pushing unit (23) is provided between the two telescopic arms (24).

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