Container conveying device and conveying method for a first-in-first-out storage

Abstract

The application provides a container conveying device and conveying method of a first-in first-out storage, belonging to the technical field of material buffering, and is used for solving the problem that the existing warehouse first-in first-out system cannot guarantee the absolute first-in first-out of all containers in each group of pallets in the warehouse. The device comprises a full-box conveyor, a full-box buffering conveyor and a shifting mechanism; the shifting mechanism is arranged above the full-box conveyor and the full-box buffering conveyor; the full-box conveyor conveys the containers filled with materials to the position below the first position of the shifting mechanism in the horizontal plane along the first direction; the shifting mechanism shifts the single container on the full-box conveyor below the first position to the full-box buffering conveyor; the full-box buffering conveyor conveys the containers thereon in the horizontal plane along the second direction; the width direction of the conveyed containers is along the first direction, and the second direction is parallel to the first direction and opposite to the first direction. The application can realize the absolute first-in first-out of the buffered materials.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of material buffering, and in particular to a container conveying device and conveying method of a first-in first-out storage. BACKGROUND

[0002] In the production process of materials, a buffering device is often added between an upstream production machine and a downstream packaging machine to coordinate the production speed of the upstream and downstream and ensure the continuous operation of the production line. The commonly used material buffering device is usually of a first-in last-out mode, for example, the method for conveying and storing rod-shaped objects provided in Chinese patent CN201810984683.7 is a first-in last-out buffering method. However, in some production fields, the first-in last-out buffering mode cannot meet the product quality requirements, for example, for materials such as cigarettes with time limit, a first-in first-out (the materials input into the buffering device first are output first) buffering mode is more needed.

[0003] To meet the storage requirements of the first-in first-out of materials, the prior art proposes a first-in first-out material storage mode in the form of a storage, Figure 1 The structure of the prior art is shown in the schematic structural view of the library type first-in first-out storage system. As shown in Figure 1 The system mainly includes an input device 11, a mechanical hand 12, a storage 13 and an output device 14, wherein the conveying directions of the input device 11 and the output device 14 are shown by the solid arrows on the devices. Figure 1 After the input device 11 outputs a tray 15 full of materials, the left mechanical hand 12 stores a plurality of trays 15 as a group in the storage 13, and when the materials in the storage are needed, the right mechanical hand 12 takes out the group of trays 15 first input into the storage according to the first-in first-out principle and transfers them to the output device 14 for output. For example, Figure 1 If the numbers ①②③④…… represent the numbers of the trays 15 output by the input device 11 in sequence, and 3 groups of material trays 15 are assumed, the group of trays 15 with the numbers ①②③ output by the input device 11 in sequence is first transferred by the left mechanical hand 12 to a storage position on the shelf of the storage 13 (represented by the dashed box in Figure 1 The group of trays 15 with the numbers ④⑤⑥ output by the input device 11 is then transferred by the left mechanical hand 12 to another storage position on the shelf of the storage 13 (represented by the dashed box in Figure 1 When the materials in the storage are needed, the right mechanical hand 12 first takes out the group of trays 15 with the numbers ①②③ according to the first-in first-out principle and transfers them to the output device 14, and as shown in Figure 1 Although the group of trays 15 with the numbers ①②③ is output first, the materials in the group of trays are not first-in first-out but first-in last-out when output.

[0004] Therefore,Figure 1 The system shown is generally large in layout, and the production workshop space is limited, and the production line equipment is closely connected. In order to save the floor space, the robot in the advanced first-in first-out storage system generally transfers the tray by translation, and the tray group is stored or discharged, that is, the tray order in each tray group will not be changed when storing / discharging, such as Figure 1 As shown in the middle, it causes the last produced material tray in a group of trays to be discharged first. In order to solve this problem, if the robot is designed to be a 180° reversing robot to realize the absolute first-in first-out of the materials in each tray, the structure of the robot will be increased, and a reversing work link is added, which will reduce the storage efficiency, and the system design is more complex. Pre-sorting processing of the to-be-stored tray is required. SUMMARY

[0005] Therefore, the embodiments of the present application provide a container conveying device and conveying method of an advanced first-in first-out storage library, which are used to solve the problems that the existing library type advanced first-in first-out system cannot guarantee the absolute first-in first-out of all containers in each tray group stored, and the use of a robot with reversing function will cause the system to occupy a large area and the system structure to be complex.

[0006] In a first aspect, the embodiments of the present disclosure provide a container conveying device of an advanced first-in first-out storage library, comprising: a full box conveyor, a full box buffer conveyor and a shifting mechanism; wherein the shifting mechanism is arranged above the full box conveyor and the full box buffer conveyor;

[0007] The full box conveyor is used to convey the full material container to the first position below the shifting mechanism in the horizontal plane along the first direction; wherein the width direction of the conveyed container is along the first direction;

[0008] The shifting mechanism is used to transfer the single container on the full box conveyor below the first position to the full box buffer conveyor;

[0009] The full box buffer conveyor is used to convey the container thereon in the horizontal plane along the second direction, and the second direction is parallel to and opposite to the first direction.

[0010] In some embodiments, the shifting mechanism comprises: a horizontal moving electric cylinder, a vertical lifting cylinder, a mounting plate and a grabbing piece;

[0011] The guide direction of the horizontal moving electric cylinder is horizontal and perpendicular to the first direction;

[0012] The vertical lifting cylinder is installed on the moving slide table of the horizontal moving electric cylinder, and the push rod of the vertical lifting cylinder is arranged in the vertical direction;

[0013] The mounting plate is connected with the push rod, and a grabbing piece is symmetrically mounted at both ends of the mounting plate;

[0014] The grabbing piece is used for grabbing the outer sidewall of the container, so that the grabbed container is lifted by the mounting plate and the grabbing piece when the push rod of the vertical lifting cylinder rises.

[0015] In some embodiments, horizontal grooves are arranged on two outer sidewalls in the length direction of the container; and the grabbing piece is a lifting plate in the shape of a downwardly open C-shaped groove.

[0016] In some embodiments, the full-box buffer conveyor comprises a second frame, a second conveying belt assembly and a limiting piece; the second conveying belt assembly is mounted on the second frame, and the length direction of the second conveying belt of the second conveying belt assembly is along a second direction; and the limiting piece is fixedly mounted at one end of the second conveying belt assembly in the conveying direction.

[0017] In some embodiments, the full-box buffer conveyor is further used for outputting m containers on the full-box buffer conveyor in the first direction in a whole group when the number of the containers on the full-box buffer conveyor reaches a preset number m; wherein m is a positive integer greater than or equal to 2.

[0018] In a second aspect, the embodiments of the present disclosure provide a container conveying method of a first-in-first-out storage, which comprises:

[0019] Step S1: conveying a full-material container to below a first position of a displacement mechanism in a first direction in a horizontal plane by a full-box conveyor, and then moving the displacement mechanism from a second position to the first position; wherein the initial value of n is 1;

[0020] Step S2: moving the full-material container below the first position on the full-box conveyor to a full-box buffer conveyor by the displacement mechanism, while conveying a full-material container to below the first position in the first direction in the horizontal plane by the full-box conveyor;

[0021] Step S3: returning the displacement mechanism to the first position when the full-box conveyor conveys the full-material container to below the first position;

[0022] Step S4: conveying the full-material container in a second direction in the horizontal plane by the full-box buffer conveyor, and then setting n=n+1 and returning to execute the step S2; wherein the second direction is parallel to the first direction and opposite in direction.

[0023] In some embodiments, the step S4 of conveying the full-material container in the second direction in the horizontal plane by the full-box buffer conveyor specifically comprises:

[0024] The full-box buffer conveyor conveys the nth container in the horizontal plane along the second direction by a distance of a width value of at least one container.

[0025] In some embodiments, horizontal grooves are arranged on two outer side walls of the container in the length direction; the displacement mechanism comprises a horizontal moving electric cylinder, a vertical lifting cylinder, a mounting plate, and a lifting plate; the guide direction of the horizontal moving electric cylinder is horizontal and perpendicular to the first direction; the vertical lifting cylinder is mounted on the moving slide of the horizontal moving electric cylinder, and a push rod of the vertical lifting cylinder is arranged in the vertical direction; the mounting plate is connected with the push rod, and lifting plates are symmetrically arranged at both ends of the mounting plate; the lifting plate is in the shape of a C-shaped groove with the opening downward;

[0026] The step S2 comprises:

[0027] Step S21: the vertical lifting cylinder retracts the push rod upward, the nth container currently located below the first position is hung and lifted by the bottom short edge of the C-shaped groove of the lifting plate, so that the bottom surface of the nth container is separated from the first conveying belt of the full-box conveyor;

[0028] Step S22: the moving slide of the horizontal moving electric cylinder moves horizontally in the direction of the full-box buffer conveyor by a preset distance, so that the nth container reaches directly above the full-box buffer conveyor;

[0029] Step S23: the vertical lifting cylinder extends the push rod downward, and the nth container is placed on the second conveying belt of the full-box buffer conveyor;

[0030] In step S3, the displacement mechanism returns to the first position, which comprises:

[0031] The moving slide of the horizontal moving electric cylinder moves horizontally in the direction of the full-box conveyor, and the bottom short edge of the C-shaped groove of the lifting plate connected with the mounting plate passes through the horizontal grooves on both sides of the container until it moves to the first position.

[0032] In some embodiments, after the step S4, the method further comprises:

[0033] Step S5: when the number of containers buffered on the full-box buffer conveyor reaches a preset number m, the full-box buffer conveyor outputs the m containers thereon in the horizontal plane along the first direction as a whole; wherein m is a positive integer greater than or equal to 2.

[0034] The container conveying device and conveying method of the first-in first-out storage provided by the application only need to occupy a space slightly larger than the length of the container to set a full box buffer conveyor parallel to the full box conveyor, and then the full boxes conveyed at equal intervals on the full box conveyor can be transferred to the full box buffer conveyor through the shifting mechanism and then conveyed reversely, so that the containers can be exchanged in sequence without affecting the original conveying speed of the full box conveyor, the container group can realize first-in first-out, and the single container in each container group also realizes first-in first-out, the absolute first-in first-out of material storage is ensured, the timeliness of the material is ensured, the material production line realizes traceability, in addition, the containers to be stored are exchanged in sequence in advance, the downstream material taking manipulator structure is further simplified, the storage space of the storage system is reduced, and the material buffering efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0036] Figure 1 It is a structural schematic diagram of an existing library first-in first-out storage system;

[0037] Figure 2 It is a structural schematic diagram of a container conveying device of a first-in first-out storage provided by the embodiment of the application;

[0038] Figure 3 It is a structural schematic diagram of a shifting mechanism provided by the embodiment of the application;

[0039] Figure 4 It is a container conveying method flow chart of a first-in first-out storage provided by the embodiment of the application;

[0040] Reference signs:

[0041] 1, full box conveyor; 2, full box buffer conveyor; 3, shifting mechanism; 4, container; 11, input device; 12, manipulator; 13, storage; 14, output device; 15, tray; 21, second frame; 22, second conveying belt assembly; 23, limiting piece; 31, horizontal moving electric cylinder; 32, vertical lifting air cylinder; 33, mounting plate; 34, lifting plate; 311, moving slide table; 321, push rod; 41, horizontal groove; 401, second schematic container; 402, first schematic container. DETAILED DESCRIPTION

[0042] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not intended to limit the present application.

[0043] For the convenience of description, the following will be defined as follows. Figure 2 The direction horizontally left along the length direction of the container 4 is defined as the left direction. Figure 2 The direction horizontally right along the length direction of the container 4 is defined as the right direction. Figure 1 The direction vertically outward along the width direction of the container 4 (the direction indicated by the arrow M) is defined as the front direction. Figure 2 The direction vertically outward along the width direction of the container 4 (the direction indicated by the arrow R) is defined as the rear direction. Figure 1 The direction vertically outward along the width direction of the container 4 (the direction indicated by the arrow M) is defined as the front direction. Figure 2 The direction vertically outward along the width direction of the container 4 (the direction indicated by the arrow R) is defined as the rear direction.

[0044] Figure 2 A structure schematic view of a container conveying device of a first-in-first-out storage provided by an embodiment of the present application is shown in FIG. 1, which comprises a full-box conveyor 1, a full-box buffer conveyor 2 and a shifting mechanism 3; wherein the full-box conveyor 1 and the full-box buffer conveyor 2 are arranged side by side, and the shifting mechanism 3 is arranged above the full-box conveyor 1 and the full-box buffer conveyor 2. Figure 2 The full-box conveyor 1 is used to convey the full material containers 4 to the first position below the shifting mechanism 3 along a first direction (the direction indicated by the arrow R) in a horizontal plane; wherein the width direction of the conveyed containers 4 is along the first direction.

[0045] Figure 2 The shifting mechanism 3 shifts the single container 4 on the full-box conveyor 1 below the first position thereof to the full-box buffer conveyor 2 at a time.

[0046] The full-box buffer conveyor 2 is used to convey the containers 4 thereon along a second direction (the direction indicated by the arrow M) in a horizontal plane, and the second direction is parallel to the first direction and opposite in direction.

[0047] Preferably, as shown in FIG. 2, the full-box buffer conveyor 2 comprises a second frame 21, a second conveyor belt assembly 22 and a limiting piece 23; the second conveyor belt assembly 22 is installed on the frame 21, and the length direction of the second conveyor belt of the second conveyor belt assembly 22 is along the second direction; and the limiting piece 23 is fixedly installed on the end of the second conveyor belt assembly 22 in the conveying direction (the direction indicated by the arrow M). Figure 2

[0048] Figure 2 Figure 3 Figure 3 ​​​​​At the rear end of the middle. When the full-box buffer conveyor 2 conveys the container 4 along the second direction, the container 4 will eventually be blocked by the limiting member 23 at the end of the second direction M, realizing the buffering function of the full-box buffer conveyor 2 for the container 4.

[0049] Preferably, the full-box buffer conveyor 2 is further configured to, when the number of containers 4 buffered on it reaches a preset number m, output the m containers 4 in a horizontal plane along a first direction, so as to transport them to a downstream conveying device connected to the full-box buffer conveyor 2, and transfer them to a first-in-first-out storage device; wherein, m is a positive integer greater than or equal to 2. For example, the container conveying device provided by the present invention may also include a sensor (such as an infrared sensor) disposed on the side of the full-box buffer conveyor 2 in the conveying direction. The sensor is used to sense the containers 4 conveyed by the full-box buffer conveyor 2 in a second direction and count the number of containers 4 conveyed by the full-box buffer conveyor 2 in the second direction. When the count value reaches a preset value m, the full-box buffer conveyor 2 is triggered to reverse the conveying direction, so as to output the m containers 4 in a horizontal plane along the first direction, and then the count value of the sensor is cleared to start the next round of counting.

[0050] Preferably, when the shifting mechanism 3 moves one container 4 to the full-box buffer conveyor 2 each time, the full-box buffer conveyor 2 moves forward in the second direction in the horizontal plane by at least one width value of the container 4, thereby reserving a position below the shifting mechanism 3 for the next container 4 to be transferred from the full-box conveyor 1. This allows multiple containers 4 transferred to the full-box buffer conveyor 2 to be arranged in a single sequence without gaps, and there is no need to adjust the gaps between adjacent containers 4 in the future. This avoids the situation where the containers 4 stored in each group move or tip over during the inbound and outbound process due to the gaps between them. In this embodiment, the control system of the container conveying device of the present invention can also count the number of times the full-box buffer conveyor 2 starts conveying in the second direction. Each time the full-box buffer conveyor 2 starts and moves forward by at least one width value of container 4 in the second direction in the horizontal plane, the count value increases by 1. When the count value reaches a preset value m, the full-box buffer conveyor 2 is triggered to reverse conveying so that the m containers 4 on it are output as a group in the first direction in the horizontal plane. Then the current count value is cleared to start the next round of counting.

[0051] Figure 2 This is a schematic diagram of the structure of the shifting mechanism provided in an embodiment of the present invention, as shown below. Figure 2 As shown, the shifting mechanism 3 includes: a horizontal moving electric cylinder 31, a vertical lifting cylinder 32, a mounting plate 33, and a gripping component, wherein:

[0052] The guide direction of the horizontal moving electric cylinder 31 is horizontal and perpendicular to the first direction, and the horizontal moving electric cylinder 31 is combined with Figure 2 , the guide direction of the horizontal moving electric cylinder 31 is left-right direction;

[0053] The vertical lifting cylinder 32 is installed on the moving slide 311 of the horizontal moving electric cylinder 31, and the push rod 321 of the vertical lifting cylinder 32 is arranged in the vertical direction;

[0054] The mounting plate 33 is connected with the push rod 321, and the grabbing parts are symmetrically installed at both ends of the mounting plate 33; obviously, Figure 3 The horizontal moving electric cylinder 31 can drive the vertical lifting cylinder 32 to move left and right through the moving slide 311, and the vertical lifting cylinder 32 can lower or lift the mounting plate 33 by extending or retracting the push rod 321;

[0055] The grabbing parts are used for grabbing the outer side wall of the container 4, so that the container 4 to be grabbed is lifted by the mounting plate 33 and the grabbing parts when the push rod 321 of the vertical lifting cylinder 32 rises. For example, the grabbing parts can be mechanical grippers with opening and closing functions, or the grabbing parts can be vacuum suction cups capable of adsorbing the side wall of the container 4.

[0056] Preferably, as shown in Figure 4 and Figure 2 , two outer side walls in the length direction of the container 4 are provided with horizontal grooves 41; the grabbing parts are lifting plates 34, the lifting plates 34 are in the shape of C-shaped grooves with openings downward, the inner width of the C-shaped grooves is greater than the width of the container 4, and the thickness of the inwardly extending bottom short edge of the C-shaped grooves is less than the height of the horizontal grooves 41, so that the bottom short edge of the C-shaped grooves can pass through the horizontal grooves 41 without interference.

[0057] The container conveying device of the first-in-first-out storage provided by the application sets a full-box buffer conveyor parallel to the full-box conveyor and opposite in conveying direction, and reversely conveys the containers filled with materials that are continuously conveyed at equal intervals on the full-box conveyor through a displacement mechanism, so that the order of the containers used to form a group can be exchanged without affecting the original conveying speed of the full-box conveyor, absolute first-in-first-out of material storage is realized (not only the container group realizes first-in-first-out, but also the single containers in each container group realize first-in-first-out), the timeliness of the materials is ensured, and the material production line realizes traceability. In addition, the containers to be stored are pre-sequenced, the structure of the downstream material taking manipulator is further simplified, the floor space occupied by the storage system is reduced, and the material buffering efficiency is improved.

[0058] Corresponding to the container conveying device of the first-in-first-out storage provided by the embodiment of the application, the embodiment of the application further provides a container conveying method of a first-in-first-out storage, as shown in Figure 2 , the method comprises the following steps S1-S4:

[0059] Step S1: the full-box conveyor 1 transports the n-th full container 4 in the first direction to below the first position of the displacement mechanism 3, and then the displacement mechanism 3 moves from the preset second position to the first position;

[0060] wherein n is a positive integer, and the initial value of n is 1.

[0061] In the embodiment, the full-box conveyor 1 transports the full containers 4 from the upstream at equal intervals in the direction indicated by the arrow R, and it is assumed that the full-box conveyor 1 currently transports the first full container 4 to the first position where the first schematic container 402 is located below the displacement mechanism 3, and then the displacement mechanism 3 moves from the preset second position to the first position. Figure 2 The second position can be the position where the second schematic container 401 is located below the displacement mechanism 3, as shown in FIG. 4B. Figure 3

[0062] Step S2: the displacement mechanism 3 moves the n-th container 4 on the full-box conveyor 1 below the first position to the full-box buffer conveyor 2, while the full-box conveyor 1 transports the n+1-th full container 4 in the first direction in the horizontal plane.

[0063] In some embodiments, when the container conveying method of the first-in first-out storage provided by the embodiment is used in the device shown in FIG. 1A and FIG. 1B, the above step S2 can include: Figure 2 Figure 2

[0064] Step S21: the vertical lifting pneumatic cylinder 32 retracts the push rod 321 upward, and the push rod 321 hangs and lifts the n-th container 4 currently located below the first position through the bottom short side of the C-shaped groove of the lifting plate 34, so that the bottom surface of the n-th container 4 is separated from the first conveying belt of the full-box conveyor 1;

[0065] Step S22: the moving slide 311 of the horizontal moving electric cylinder 31 moves a preset distance horizontally to the direction of the full-box buffer conveyor 2, so that the n-th container 4 reaches directly above the full-box buffer conveyor 2;

[0066] Preferably, after the moving slide 311 of the horizontal moving electric cylinder 31 moves a preset distance horizontally to the direction of the full-box buffer conveyor 2, the n-th container 4 reaches directly above the second schematic container 401 below the displacement mechanism 3, as shown in FIG. 4B. Figure 2

[0067] Step S23: the vertical lifting pneumatic cylinder 32 extends the push rod 321 downward, and places the n-th container 4 on the second conveying belt of the full-box buffer conveyor 2;

[0068] ​​​​Step S3: When the full box conveyor 1 transports the (n+1)th container 4 to below the first position, the shifting mechanism 3 returns to the first position;

[0069] In the step S3, the shifting mechanism 3 returns to the first position, specifically including: horizontally moving the moving slide 311 of the horizontal moving electric cylinder 31 to the direction of the full box conveyor 1, driving the short side of the bottom of the C-shaped groove of the lifting plate 34 connected with the mounting plate 33 to pass through the horizontal grooves 41 on both sides of the container 4, until moving to the first position. For example, in the step S3, the moving slide 311 of the horizontal moving electric cylinder 31 horizontally moves to the right, sequentially passing through the horizontal grooves 41 of the second schematic container 401 and the first schematic container 402 in the first schematic container 402, and finally stopping when the bottoms of the C-shaped grooves on the left and right sides of the lifting plate 34 are respectively located in the horizontal grooves 41 of the first schematic container 402, and confirming that the shifting mechanism 3 returns to the first position. ​ ​ In the step S3, the shifting mechanism 3 returns to the first position, specifically including: horizontally moving the moving slide 311 of the horizontal moving electric cylinder 31 to the direction of the full box conveyor 1, driving the short side of the bottom of the C-shaped groove of the lifting plate 34 connected with the mounting plate 33 to pass through the horizontal grooves 41 on both sides of the container 4, until moving to the first position. For example, in the step S3, the moving slide 311 of the horizontal moving electric cylinder 31 horizontally moves to the right, sequentially passing through the horizontal grooves 41 of the second schematic container 401 and the first schematic container 402 in the first schematic container 402, and finally stopping when the bottoms of the C-shaped grooves on the left and right sides of the lifting plate 34 are respectively located in the horizontal grooves 41 of the first schematic container 402, and confirming that the shifting mechanism 3 returns to the first position.

[0070] Step S4: The full box buffer conveyor 2 transports the nth container 4 in the horizontal plane along the second direction, and then sets n=n+1, and returns to execute the step S2.

[0071] In the step S4, the second direction is parallel to the first direction and opposite to the first direction.

[0072] Preferably, in the step S4, the full box buffer conveyor 2 transports the nth container 4 in the horizontal plane along the second direction by a distance of at least the width value of one container 4, so as to reserve a position below the shifting mechanism 3 for the next (n+1)th container 4 for the shifting mechanism 3 to transfer the next container 4 from the full box conveyor 1.

[0073] Further, after the step S4, the method provided by the embodiment of the present application further includes a step S5: when the number of the containers 4 buffered on the full box buffer conveyor 2 reaches a preset number m, the full box buffer conveyor 2 outputs the m containers 4 on it as a group in the horizontal plane along the first direction; wherein m is a positive integer greater than or equal to 2. Alternatively, the m containers 4 can be directly taken out as a group by a coordinate manipulator preset downstream of the full box buffer conveyor 2, and transferred to the first-in-first-out storage library for storage in a group unit.

[0074] Optionally, in the process that the shifting mechanism 3 transfers the first container 4 on the right side of the full box conveyor 1 to the left side to the full box buffer conveyor 2, the full box conveyor 1 continues to transport the next container 4 to the first position, and in the process that the shifting mechanism 3 lifts the next container 4 from the first position and transfers the container 4 to the left side, the full box buffer conveyor 2 can transport the last container 4 along the second direction, so as to improve the efficiency of the container sequence transportation.

[0075] ​The above merely illustrates the specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A container conveying device for a first-in, first-out (FIFO) storage warehouse, characterized in that, include: A full-box conveyor (1), a full-box buffer conveyor (2), and a shifting mechanism (3); wherein the shifting mechanism (3) is disposed above the full-box conveyor (1) and the full-box buffer conveyor (2); The full-box conveyor (1) is used to convey a container (4) filled with material in a first direction in a horizontal plane to a first position below the shifting mechanism (3); wherein the width direction of the conveyed container (4) is along the first direction; The shifting mechanism (3) is used to move a single container (4) on the full box conveyor (1) located below its first position to the full box buffer conveyor (2); The full-box buffer conveyor (2) is used to convey the containers (4) on it in a second direction in a horizontal plane, the second direction being parallel to and opposite to the first direction; the full-box buffer conveyor (2) is also used to output the m containers (4) on it in a group in the first direction in a horizontal plane when the number of containers (4) buffered on it reaches a preset number m; where m is a positive integer greater than or equal to 2.

2. The container conveying device for a first-in-first-out (FIFO) storage warehouse according to claim 1, characterized in that, The displacement mechanism (3) includes: a horizontal moving electric cylinder (31), a vertical lifting cylinder (32), a mounting plate (33), and a gripping component; The guiding direction of the horizontally moving electric cylinder (31) is horizontal and perpendicular to the first direction; The vertical lifting cylinder (32) is mounted on the sliding slide (311) of the horizontal moving electric cylinder (31), and the push rod (321) of the vertical lifting cylinder (32) is arranged in the vertical direction; The mounting plate (33) is connected to the push rod (321), and gripping parts are symmetrically installed at both ends of the mounting plate (33); The gripper is used to grip the outer wall of the container (4) so ​​that when the push rod (321) of the vertical lifting cylinder (32) rises, the gripped container (4) is lifted by the mounting plate (33) and the gripper.

3. The container conveying device for a first-in, first-out (FIFO) storage warehouse according to claim 2, characterized in that, The container (4) has horizontal grooves (41) on its two outer side walls along its length; the gripper is a lifting plate (34), which is a C-shaped groove with its opening facing downwards.

4. The container conveying device for a first-in, first-out (FIFO) storage warehouse according to claim 1, characterized in that, The full-box buffer conveyor (2) includes a second frame (21), a second conveyor belt assembly (22), and a limiting member (23); the second conveyor belt assembly (22) is installed on the second frame (21), and the length direction of the second conveyor belt of the second conveyor belt assembly (22) is along the second direction; the limiting member (23) is fixedly installed at the end of the conveying direction of the second conveyor belt assembly (22).

5. A container delivery method for a first-in, first-out (FIFO) storage warehouse, characterized in that, The method for a container conveying device for a first-in-first-out (FIFO) storage facility as described in claim 1, comprising: Step S1: The full-box conveyor (1) conveys the nth container (4) filled with material along the first direction in the horizontal plane to below the first position of the shifting mechanism (3), and then the shifting mechanism (3) moves from the preset second position to the first position; wherein, the initial value of n is 1; Step S2: The shifting mechanism (3) moves the nth container (4) on the full box conveyor (1) located below the first position to the full box buffer conveyor (2), while the full box conveyor (1) conveys the n+1th container (4) filled with material in the first direction in the horizontal plane. Step S3: When the full-box conveyor (1) transports the (n+1)th container (4) below the first position, the shifting mechanism (3) returns to the first position; Step S4: The full-box buffer conveyor (2) conveys the nth container (4) in the second direction in the horizontal plane, and then sets n=n+1 and returns to execute step S2; wherein the second direction is parallel to the first direction and opposite in direction; Step S5: When the number of containers (4) cached on the full-box buffer conveyor (2) reaches a preset number m, the full-box buffer conveyor (2) outputs the m containers (4) on it in a group along the first direction in the horizontal plane; where m is a positive integer greater than or equal to 2.

6. The container delivery method for a first-in, first-out (FIFO) storage warehouse according to claim 5, characterized in that, The full-box buffer conveyor (2) in step S4 transports the nth container (4) along the second direction in the horizontal plane, specifically including: The full-box buffer conveyor (2) transports the nth container (4) in the horizontal plane along the second direction by a distance equal to the width value of at least one container (4).

7. The container delivery method for a first-in, first-out (FIFO) storage warehouse according to claim 5, characterized in that, The container (4) has horizontal grooves (41) on its two outer side walls along its length; the shifting mechanism (3) includes: a horizontal moving electric cylinder (31), a vertical lifting cylinder (32), a mounting plate (33), and a lifting plate (34); the guiding direction of the horizontal moving electric cylinder (31) is horizontal and perpendicular to the first direction; the vertical lifting cylinder (32) is mounted on the moving slide (311) of the horizontal moving electric cylinder (31), and the push rod (321) of the vertical lifting cylinder (32) is set along the vertical direction; the mounting plate (33) is connected to the push rod (321), and the lifting plates (34) are symmetrically installed at both ends of the mounting plate (33); the lifting plate (34) is a C-shaped groove with an opening facing downwards; Step S2 includes: Step S21: The vertical lifting cylinder (32) retracts the push rod (321) upward, and hooks and lifts the nth container (4) currently located below the first position through the bottom short side of the C-shaped groove of the lifting plate (34), so that the bottom surface of the nth container (4) is separated from the first conveyor belt of the full box conveyor (1); Step S22: The moving slide (311) of the horizontal moving electric cylinder (31) moves horizontally a preset distance toward the full box buffer conveyor (2) so that the nth container (4) reaches directly above the full box buffer conveyor (2); Step S23: The vertical lifting cylinder (32) extends the push rod (321) downward to place the nth container (4) on the second conveyor belt of the full-box buffer conveyor (2); In step S3, the shifting mechanism (3) returns to the first position, including: The moving slide (311) of the horizontal moving electric cylinder (31) moves horizontally toward the full box conveyor (1), causing the bottom short side of the C-shaped groove of the lifting plate (34) connected to the mounting plate (33) to pass through the horizontal grooves (41) on both sides of the container (4) until it moves to the first position.

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