A picking device and a picking method

Abstract

The present invention discloses a cargo picking device, comprising a control system; a storage box for storing cargo, a second through hole being provided at the bottom of the storage box; a rack, a first bin and a second bin for accommodating the storage box being provided on the rack, a first through hole corresponding to the second through hole being provided at the bottom of the first bin, a cargo ejecting device which can pass through the first through hole and the second through hole and eject the cargo in the storage box in the first bin being provided below the first bin, a pushing mechanism which can support the ejected cargo and push the ejected cargo into the storage box in the second bin being provided on the rack; and a conveying device for conveying the storage box and delivering the storage box into the first bin or the second bin. The present invention can accurately take out a part of the cargo in the storage box, replacing the traditional manual cargo picking method, saving time and labor, and having high efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of logistics, and in particular to a cargo picking device and a cargo picking method. Background Art

[0002] Warehouse shelves are a type of equipment used to store goods. Existing warehouses are equipped with shelves on which storage boxes are stored. Each storage box stores one or more types of goods. In order to save manpower, existing warehouses generally use automatic picking equipment such as manipulators, which can automatically take out the required storage boxes under the control of a control system. In some cases, only a part of the goods in the storage box needs to be taken out, and the entire storage box does not need to be taken out. However, existing automatic picking devices such as manipulators can only take out the entire storage box when picking up goods, and cannot accurately take out a part of the goods in the storage box. The storage box taken out by the manipulator still needs to be opened manually and the required goods in the storage box are taken out, and then the storage box is put back on the shelf by the manipulator. This method of picking up goods requires the goods in the storage box to be taken out manually, and the picking up process is more troublesome.

[0003] For example: Chinese patent publication number CN109132309A, the invention name is a three-dimensional intelligent micro warehouse driven by a linear motor, the invention includes a shelf component, a manipulator component and an import and export component, the shelf component is fixed on the base, and the manipulator component and the import and export component are installed on one side of the base; the manipulator component includes a picking basket, a vertical sliding mechanism, a longitudinal sliding mechanism, a rotating mechanism, and a manipulator, the longitudinal sliding mechanism is connected to the longitudinal sliding mechanism, the longitudinal sliding mechanism is connected to the rotating mechanism, and the picking basket is connected to the rotating mechanism through the manipulator. When picking up goods, the manipulator can only take out the entire storage box, and cannot take out a part of the goods in the storage box neatly. The goods in the storage box need to be taken out manually, and the picking process is more troublesome. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the existing picking device can only take out the entire storage box but cannot accurately take out a part of the goods in the storage box, and the goods in the storage box need to be taken out manually, and the picking process is relatively troublesome. A picking device is provided to effectively solve the above problem.

[0005] The object of the present invention is achieved through the following technical solution: a picking device, comprising

[0006] Control systems;

[0007] A storage box, used for storing goods, wherein a second through hole is provided at the bottom of the storage box;

[0008] A rack, wherein a first bin and a second bin for accommodating storage boxes are arranged on the rack, a first through hole corresponding to the second through hole is arranged at the bottom of the first bin, a cargo ejecting device which can pass through the first through hole and the second through hole and eject cargo from the storage box in the first bin is arranged below the first bin, and a pushing mechanism which can support the ejected cargo and push the ejected cargo into the storage box in the second bin is arranged on the rack;

[0009] The conveying devices are respectively arranged at positions corresponding to the first bin and the second bin, and are used to convey the storage box and send the storage box into the first bin or the second bin.

[0010] When the present invention is used, the storage box taken from the shelf is first sent to the first storage position on the rack by the conveying device, and then the required part of the goods in the storage box is pushed out through the first through hole at the bottom of the storage box by the goods ejecting device, and the pushing mechanism holds the ejected goods and pushes the goods into another empty storage box to complete the goods transfer, and then the storage box in the second storage position is sent to the destination, and the storage box in the first storage position is sorted in the next step. The present invention can accurately take out a part of the goods in the storage box, replacing the traditional manual picking method, saving time and labor, and high efficiency.

[0011] Preferably, the cargo ejection device comprises a base, a plurality of ejection components are arranged above the base, a third telescopic device for driving the ejection components to move vertically is arranged in the base; the ejection components comprise a lifting bottom plate connected to the third telescopic device, a plurality of vertically arranged ejector rods are arranged on the lifting bottom plate. The position of each ejector rod corresponds to the first through hole at the bottom of the first bin, and the control system controls the corresponding ejection component to rise according to the position of the required cargo in the box, and the ejector rods on the ejection component respectively pass through the first through hole and the second through hole and extend into the storage box to eject the required cargo, thereby realizing the function of ejecting the cargo from the storage box. The third telescopic device is used to drive the ejection component to move up and down, and the third telescopic device is one of a pneumatic cylinder, a hydraulic cylinder or an electric cylinder.

[0012] Preferably, the pushing mechanism comprises a push plate, a first telescopic device for driving the push plate to move horizontally, a support part for holding the ejected goods, and a second telescopic device for driving the support part to move horizontally, the support part comprises a connecting plate and a horizontal support rod, the horizontal support rod is arranged in a transverse arrangement on the connecting plate, and the horizontal support rod is located below the push plate. When the ejection component ejects the goods from the storage box, the horizontal support rod extends outward to hold the goods, and then the push plate moves horizontally toward the second bin position to push the goods into the storage box in the second bin position, thereby completing the pushing of the goods.

[0013] Preferably, a push wheel for pushing the storage box is provided at the bottom of the first bin, and an infrared sensor for detecting whether the storage box has moved into place is provided at one end of the first bin. The push wheels are provided on both sides of the bottom of the first bin, and the push wheels are connected to the motor. The push wheels rotate under the drive of the motor, thereby driving the storage box to move. The motor and the infrared sensor are both electrically connected to the control system. When the storage box moves into place, the storage box blocks the infrared sensor, and the infrared sensor is triggered and sends a signal to the control system. The control system controls the push wheel to stop rotating, so that the storage box stops at the specified position.

[0014] Preferably, the conveying device comprises a base, on which a conveyor belt is arranged. The storage box is placed on the conveyor belt, and the storage box can be pushed into the first bin or transferred from the conveying device to other mobile transport vehicles through the conveyor belt.

[0015] Preferably, an information acquisition device is provided on the upper end of the base. The information acquisition device is a code scanning device, which can perform code scanning work, can scan and read the QR code information on the storage box, so as to obtain the weight of the storage box and the storage status of the internal goods, and transmit the information to the control system by wireless transmission.

[0016] Preferably, a docking device is provided on the mobile chassis, and the docking device includes a proximity sensor and an electromagnet provided on the side of the mobile chassis. The docking device can achieve docking with the mobile transport vehicle, and after the two are docked, the storage box on the mobile transport vehicle can be transferred to the conveying device through a conveyor belt or the storage box on the conveying device can be transferred to the mobile transport vehicle. The proximity sensor and the electromagnet are electrically connected to a control module provided in the base, and the proximity sensor can detect the proximity distance between the two. When the proximity distance between the two reaches the set docking distance, the electromagnet is turned on, and the two are attracted to each other through the electromagnet to complete the docking.

[0017] Preferably, the storage box comprises a box body, and a detachable partition is arranged in the box body. The partition divides the interior of the box body into a plurality of independent storage spaces, separates different goods, and avoids mixing of goods.

[0018] Preferably, an information storage device is provided at the bottom of the box body. The information storage device is a QR code, which can record information such as the weight of each storage box and the storage location of the internal goods. The transmission device can obtain the specific information of the storage box after scanning the QR code on it, so as to know the location of the required goods in the storage box, and the control system can accurately pick up the goods according to the location of the goods in the storage box.

[0019] A method for picking up goods by a picking up device comprises the following specific steps:

[0020] 1) The storage boxes taken from the shelf are sent to the first bin through the conveyor, and the empty storage boxes are sent to the second bin through the conveyor;

[0021] 2) According to the storage position of the goods in the storage box, the ejection component corresponding to the position of the goods on the goods ejection device moves upward to eject the goods, the horizontal support rod extends to support the goods, and then the ejection component descends to the initial position;

[0022] 3) The push plate moves toward the second bin, pushes the ejected goods into another storage box, and then moves to the initial position;

[0023] 4) The storage boxes in the second bin are delivered to the destination, and the storage boxes in the first bin are sorted in the next step.

[0024] The beneficial effect of the present invention is that the present invention can accurately take out a certain part of the goods in the storage box, replacing the traditional manual method of taking out the goods, saving time and labor and having high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention.

[0026] Figure 2 It is a structural schematic diagram of the cargo transfer device.

[0027] Figure 3 A cross-sectional view of a cargo transfer device.

[0028] Figure 4 A schematic diagram of the structure of the supporting device.

[0029] Figure 5 This is a schematic diagram of the structure of the cargo ejection device.

[0030] Figure 6 This is a cross-sectional view of the cargo ejection device.

[0031] Figure 7 It is a structural diagram of a mobile transport vehicle.

[0032] Figure 8 It is a schematic diagram of the structure of the storage box.

[0033] Fig. 9 This is a schematic diagram of the bottom structure of the storage box.

[0034] Fig.10 Schematic diagram of the structure after removing the partition of the storage box.

[0035] In the figure: 1, frame, 2, conveying device, 3, storage box, 4, cargo ejection device, 6, first bin, 7, second bin, 8, first through hole, 9, push plate, 10, horizontal support rod, 11, slide groove, 12, bracket, 13, display panel, 14, first telescopic device, 15, second telescopic device, 16, connecting plate, 17, push wheel, 18, infrared sensor, 19, limit baffle, 20, camera, 21, base, 22, lifting bottom plate, 23, ejector rod, 24, third telescopic device, 25, base, 26, conveyor belt, 27, proximity sensor, 28, electromagnet, 29, code scanning device, 30, box body, 31, second through hole, 32, partition, 33, notch, 34, groove, 35, QR code, 36, slot. DETAILED DESCRIPTION

[0036] The present invention will be further described below through specific implementation modes in conjunction with the accompanying drawings.

[0037] Example:

[0038] like Figures 1 to 10 As shown, a picking device includes a control system, a storage box 3, a rack 1, and a conveying device. The storage box 3 includes a box body 30, a detachable partition 32 is arranged in the box body 30, a slot 36 is arranged on the inner wall of the box body 30, the cross section of the slot 36 is "T"-shaped, and the two ends of the partition 32 are inserted into the slot. The partition 32 divides the box body into a plurality of independent storage spaces. A plurality of second through holes 31 are arranged at the bottom of the box body 30. The second through hole 3 is circular. A groove 34 is arranged at the bottom of the box body 30, and an information storage device is arranged on the bottom surface of the groove 34, and the information storage device is a two-dimensional code 35.

[0039] The frame 1 is provided with a first bin 6 and a second bin 7 for placing the storage box 3. The first bin 6 and the second bin 7 are arranged adjacent to each other. A first through hole 8 corresponding to the second through hole 31 is arranged at the bottom of the first bin 6. A cargo ejection device 4 is arranged below the first bin 6. The cargo ejection device 4 includes a base 21, a plurality of ejection components are arranged above the base 21, and a third telescopic device 24 for driving the ejection component to move vertically is arranged in the base 21. The third telescopic device 24 is arranged vertically. The third telescopic device 24 is one of a cylinder, a hydraulic cylinder or an electric cylinder. The ejection component includes a lifting bottom plate 22 arranged at the upper end of the third telescopic device 24, and a plurality of vertically arranged ejector rods 23 are arranged on the lifting bottom plate 22. The ejector rods 23 correspond to the first through holes 8 one by one. A control circuit is arranged in the base 21, and the control circuit is used to control the operation of the third telescopic device 24. The control circuit is electrically connected to the control system. The frame 1 is provided with a pushing mechanism, which includes a push plate 9, a first telescopic device 14, a support portion, and a second telescopic device 15. The first telescopic device 14 is horizontally arranged on the frame 1, and the push plate 9 is connected to the front end of the first telescopic device 14, and the push plate 9 is located above the first bin 6. The frame 1 is provided with a horizontally arranged slide 11, and both ends of the push plate 9 are slidably connected in the slide 11. The first telescopic device 14 drives the push plate 9 to move horizontally. The first telescopic device 24 is one of a cylinder, a hydraulic cylinder or an electric cylinder. The support portion includes a connecting plate 16 and a plurality of horizontal support rods 10 arranged on the connecting plate 16, and the horizontal support rods 10 are arranged in sequence along the axial direction of the connecting plate 16, and the horizontal support rods 10 are located below the push plate 9 and above the first bin 6. The second telescopic device 15 is horizontally arranged on the frame 1, and the connecting plate 16 is connected to the front end of the second telescopic device 15. The second telescopic device 15 is one of a cylinder, a hydraulic cylinder or an electric cylinder. A push wheel 17 for pushing the storage box 3 is provided at the bottom of the first bin 6, and an infrared sensor 18 for detecting whether the storage box has moved into position is provided at one end of the first bin 6. The push wheels 17 are provided on both sides of the bottom of the first bin 6, and the push wheels 17 are connected to the motor. The push wheels 17 rotate under the drive of the motor, thereby driving the storage box 3 to move. The motor and the infrared sensor 18 are both electrically connected to the control system. When the storage box moves into position, the storage box blocks the infrared sensor, which is triggered and sends a signal to the control system. The control system controls the push wheels to stop rotating, so that the storage box stops at the designated position.

[0040] There are two conveying devices 2, which are respectively arranged at positions corresponding to the first bin or the second bin. The conveying device 2 includes a base 25, in which a control module is arranged, and the control module is wirelessly connected to the control system. A conveyor belt 26 is arranged at the upper end of the base 25, and two conveyor belts 26 are arranged, which are respectively arranged on both sides of the upper end of the base 25. The two conveyor belts 26 are parallel to each other. An information acquisition device is arranged at the upper end of the base 25, and the information acquisition device is a code scanning device 29. The code scanning device 29 is electrically connected to the control module. The code scanning device 29 is a prior art. A docking device is arranged on the base 25, and the docking device includes a proximity sensor 27 and an electromagnet 28 arranged on the side of the base 25. The proximity sensor 27 and the electromagnet 28 are electrically connected to the control module respectively. The conveying device can be docked with a mobile transport vehicle. When the conveying device and the mobile transport vehicle are docked, the proximity sensor can detect the proximity distance between the two. When the proximity distance between the two vehicles reaches the set docking distance, the electromagnet is turned on, and the two attract each other through the electromagnet to complete the docking.

[0041] The method for picking up goods of the present invention comprises the following specific steps:

[0042] 1) The storage box taken from the shelf is sent to the first bin through the conveyor, and the empty storage box is sent to the second bin through the conveyor; when putting the storage box into the first bin, the storage box is placed on the conveyor, and then the storage box is partially pushed into the first bin through the transmission belt on the conveyor, and then the push wheel rotates, and the storage box is completely pushed into the designated position in the first bin under the push of the push wheel. After the storage box is completely pushed into the first bin, the second through hole at the bottom of the storage box completely overlaps with the first through hole at the bottom of the first bin. When the storage box is placed on the conveyor, the conveyor can scan the QR code at the bottom of the storage box, obtain the specific information of the goods inside the storage box, and send the information to the control system.

[0043] 2) According to the storage position of the goods in the storage box, the ejection component corresponding to the position of the goods on the goods ejection device moves upward to eject the goods, the horizontal support rod extends to hold the goods, and then the ejection component descends to the initial position. The control system controls the corresponding ejection part to rise according to the storage position of the required goods in the storage box. After the ejection part rises, it lifts up the goods, and then the horizontal support rod extends outward to hold the goods, so that when the ejection part descends, the ejected goods will not fall with it. The ejector rod can be combined to rise and lift according to the number and size of the goods to be taken out.

[0044] 3) The push plate moves toward the second bin, pushes the ejected goods into another storage box, and then moves to the initial position;

[0045] 4) The storage boxes in the second bin are delivered to the destination, and the storage boxes in the first bin are sorted in the next step. The transfer of storage boxes can be completed by a mobile truck.

[0046] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A picking device, characterized in that: include Control systems; A storage box, used for storing goods, wherein a second through hole is provided at the bottom of the storage box; The rack is provided with a first bin and a second bin for accommodating a storage box, a first through hole corresponding to the second through hole is provided at the bottom of the first bin, a cargo ejecting device which can pass through the first through hole and the second through hole and eject cargo in the storage box in the first bin is provided below the first bin, a pushing mechanism which can hold the ejected cargo and push the ejected cargo into the storage box in the second bin is provided on the rack, the pushing mechanism comprises a push plate, a first telescopic device for driving the push plate to move horizontally, a supporting part for holding the ejected cargo, and a second telescopic device for driving the supporting part to move horizontally, a horizontally arranged slide groove is provided on the rack, both ends of the push plate are slidably connected in the slide groove, the supporting part comprises a connecting plate and a horizontal support rod, the horizontal support rod is arranged transversely on the connecting plate, and the horizontal support rod is located below the push plate; The conveying devices are respectively arranged at positions corresponding to the first bin and the second bin, and are used to convey the storage box and send the storage box into the first bin or the second bin.

2. A cargo picking device according to claim 1, characterized in that: The cargo ejection device includes a base, a plurality of ejection components are arranged above the base, and a third telescopic device for driving the ejection components to move vertically is arranged in the base; the ejection components include a lifting bottom plate connected to the third telescopic device, and a plurality of vertically arranged ejector rods are arranged on the lifting bottom plate.

3. A picking device according to claim 1, characterized in that: A pushing wheel for pushing the storage box to move is arranged at the bottom of the first bin, and an infrared sensor for detecting whether the storage box has moved into place is arranged at one end of the first bin.

4. A cargo picking device according to claim 1, characterized in that: The conveying device comprises a base, and a conveying belt is arranged on the base.

5. A cargo picking device according to claim 4, characterized in that: An information acquisition device is arranged on the upper end of the base.

6. A cargo picking device according to claim 4, characterized in that: A docking device is arranged on the base, and the docking device comprises a proximity sensor and an electromagnet arranged on the side of the mobile chassis.

7. A cargo picking device according to claim 1, characterized in that: The storage box comprises a box body, and a detachable partition is arranged in the box body.

8. A cargo picking device according to claim 7, characterized in that: An information storage device is arranged at the bottom of the box body.

9. A method for picking up goods according to the picking up device according to any one of claims 1 to 8, characterized in that: The specific steps include: 1) The storage boxes taken from the shelf are sent to the first bin through the conveyor, and the empty storage boxes are sent to the second bin through the conveyor; 2) According to the storage position of the goods in the storage box, the ejection component corresponding to the position of the goods on the goods ejection device moves upward to eject the goods, the horizontal support rod extends to support the goods, and then the ejection component descends to the initial position; 3) The push plate moves toward the second bin, pushes the ejected goods into another storage box, and then moves to the initial position; 4) The storage boxes in the second bin are delivered to the destination, and the storage boxes in the first bin are sorted in the next step.

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