Packaging box buffer

Abstract

This utility model discloses a packaging box buffer machine, including a conveying device, a transfer robot, an arranging and pushing device, a storage bin, a lifting drive mechanism, and an outgoing pushing mechanism. The arranging and pushing device is located on one side of the conveying device; the transfer robot is located between the conveying device and the arranging and pushing device; the storage bin is located on one side of the arranging and pushing device; the arranging and pushing device pushes the packaging boxes into the storage bin; the storage bin has a multi-layer structure, and the lifting drive mechanism drives the storage bin to move one layer; the outgoing pushing mechanism is located on the side of the storage bin facing away from the arranging and pushing device to push the packaging boxes from the storage bin to the arranging and pushing device. This packaging box buffer machine can buffer packaging boxes conveyed from upstream equipment to downstream equipment, avoiding simultaneous shutdown of upstream and downstream equipment and effectively improving equipment uptime.

Description

Technical Field

[0001] This utility model relates to a packaging box production equipment, and more particularly to a packaging box buffer machine. Background Technology

[0002] The tobacco industry has a very high level of equipment standardization and cigarette packaging production capacity. Core equipment is largely dependent on imports, and the production and modification cycles for equipment are extremely long. The equipment itself experiences numerous abnormal downtime situations (such as equipment maintenance, and the replacement of various raw materials during production). This leads to intermittent start-ups and shutdowns, thus affecting equipment uptime. Because of the extremely high production capacity, the impact of equipment uptime on output is amplified. Utility Model Content

[0003] The purpose of this invention is to provide a packaging box buffer machine, which can buffer packaging boxes transported from upstream equipment to downstream equipment, avoid simultaneous shutdown of upstream and downstream equipment, and effectively improve equipment uptime.

[0004] To achieve the above objectives, the packaging box buffer machine provided by this utility model includes a conveying device, a transfer robot, an arranging and pushing device, a storage bin, a lifting drive mechanism, and an out-of-bin pushing mechanism. The arranging and pushing device is located on one side of the conveying device. The transfer robot is located between the conveying device and the arranging and pushing device to transfer the packaging box between them. The storage bin is located on one side of the arranging and pushing device, and the arrangement direction between the storage bin and the arranging and pushing device is perpendicular to the arrangement direction between the conveying device and the arranging and pushing device. The arranging and pushing device pushes the packaging box into the storage bin. The storage bin has a multi-layer structure, and the lifting drive mechanism drives the storage bin to move one layer height after it is filled. The out-of-bin pushing mechanism is located on the side of the storage bin facing away from the arranging and pushing device to push the packaging box from the storage bin to the arranging and pushing device.

[0005] This invention incorporates a conveying device that connects upstream and downstream equipment, allowing packaging boxes to enter and exit a packaging box buffer. A transfer robot is installed between the arranging and pushing device and the conveying device to transfer the packaging boxes between them. A storage compartment is located on one side of the arranging and pushing device to store the packaging boxes, and an out-of-compartment pushing mechanism allows the packaging boxes to be pushed back onto the arranging and pushing device. Therefore, when the arranging and pushing device pushes packaging boxes into the storage compartment, it buffers the packaging boxes conveyed from upstream, allowing downstream equipment to be stopped for maintenance. Conversely, when the out-of-compartment pushing mechanism pushes the packaging boxes back into the arranging and pushing device, the arranging and pushing device and the transfer robot enable the downstream output of packaging boxes, allowing upstream equipment to be stopped for maintenance. This design enables continuous operation of the production line without requiring simultaneous shutdown of upstream and downstream equipment, effectively improving equipment uptime.

[0006] Preferably, the conveying device includes a conveyor belt, a first blocking device, and a second blocking device. The first and second blocking devices are arranged along the conveying direction of the conveyor belt on one side of the conveyor belt, and the distance between the first and second blocking devices is not less than the width of the arrangement and pushing device. By setting the first and second blocking devices, the conveyor belt can collect packaging boxes in a specific quantity, avoiding the influence of other packaging boxes and ensuring the reliability of operation.

[0007] Preferably, the transfer robot includes a drive mechanism, a first suction cup assembly, and a second suction cup assembly. The first and second suction cup assemblies are arranged perpendicular to the conveying direction of the conveyor belt and connected to the output end of the drive mechanism. The drive mechanism simultaneously drives the first and second suction cup assemblies, causing the first suction cup assembly to move between the conveyor belt and the first receiving slot of the arranging and pushing device, and causing the second suction cup assembly to move between the first and second receiving slots of the arranging and pushing device. By setting up the first and second suction cup assemblies and using a single drive mechanism to simultaneously drive both suction cup assemblies, the transfer robot achieves dual linkage of the suction cup assemblies, thereby improving the speed and efficiency of handling.

[0008] Preferably, the arrangement and pushing device includes a circulating conveyor belt, a circulating drive mechanism, push rods, and a pushing mechanism. The conveying direction of the circulating conveyor belt is perpendicular to the conveying direction of the conveying device. The circulating conveyor belt has multiple receiving slots arranged along its conveying direction for arranging and placing packaging boxes. The circulating drive mechanism drives the circulating conveyor belt to move in a step-by-step manner. The push rods are arranged transversely across each of the receiving slots. The pushing mechanism drives the push rods to move in a direction perpendicular to the conveying direction of the circulating conveyor belt, thereby pushing the packaging boxes in each receiving slot into the storage compartment. By using the circulating conveyor belt to move the packaging boxes in a step-by-step manner, the circulating conveyor belt can be fully loaded with packaging boxes. Then, using the pushing mechanism and push rods, the packaging boxes on the circulating conveyor belt can be pushed into the storage compartment in one go. This not only achieves buffering of packaging boxes in the storage compartment but also simplifies the number of times packaging boxes are pushed, improving buffering efficiency.

[0009] Specifically, the circulating conveyor belt is provided with multiple protruding ribs, and the receiving grooves are formed between adjacent ribs. By setting the ribs, the circulating conveyor belt can be divided into multiple receiving grooves for accommodating packaging boxes. This not only achieves the purpose of positioning the packaging boxes, but also guides the packaging boxes when the pushing mechanism pushes them into the storage bin, thereby ensuring that the packaging boxes can accurately enter the storage bin and improving the stability of equipment operation.

[0010] Preferably, the storage compartment has multiple layers along the vertical direction, with multiple storage channels arranged in each layer. Each storage channel has a through port at both ends, which respectively connects to the arrangement and pushing device and the dispensing and pushing mechanism. This increases the capacity of the storage compartment and facilitates the input of packaging boxes by the arrangement and pushing device and the output of packaging boxes by the dispensing and pushing mechanism.

[0011] Preferably, the lifting drive mechanism includes a servo motor, a chain, and a track. The storage compartment is connected to the chain, and the servo motor drives the chain to rotate, thereby causing the storage compartment to rise or fall.

[0012] Specifically, there are two storage compartments and one lifting drive mechanism. The storage compartments are respectively located on opposite sides of the arrangement and pushing device. The two storage compartments are respectively connected to opposite sides of the chain, so that the two storage compartments move in opposite directions. By using the chain of one lifting drive mechanism to drive the two storage compartments simultaneously, the buffer capacity can be increased, the number of times the lifting drive mechanism is driven can be reduced, the operation of the equipment can be simplified, and the efficiency can be improved.

[0013] Preferably, the discharge pushing mechanism includes a pushing drive mechanism and a pushing component. The output end of the pushing drive mechanism is connected to the pushing component to drive the pushing component to extend into the storage compartment and push the packaging box onto the arrangement pushing device.

[0014] Specifically, the outfeed pushing mechanism further includes a guide rail, the pushing component is a flexible plate chain, and the pushing drive mechanism includes a servo motor and a lead screw and slider assembly. The output end of the servo motor is connected to the lead screw of the lead screw and slider assembly to push the slider of the lead screw and slider assembly to move along the stacking direction of the storage bin. The guide rail is connected to the storage bin, and the flexible plate chain is slidably disposed within the guide rail with one end connected to the slider and the other end extending into or out of the storage bin to push the packaging box out of the storage bin. By setting a flexible plate chain and using the lead screw and slider assembly to drive the slider to move along the stacking direction of the storage bin, the flexible plate chain can enter the storage bin. This not only pushes the packaging box out of the storage bin but also reduces the lateral volume occupied by the outfeed pushing mechanism, thus making the packaging box buffer machine smaller and more compact. Attached Figure Description

[0015] Figure 1 This is a perspective view of the packaging box buffer machine of this utility model.

[0016] Figure 2 This is a top view of the packaging box buffer machine of this utility model.

[0017] Figure 3 This is the front view of the packaging box buffer machine of this utility model.

[0018] Figure 4 This is a structural diagram of the conveying device of the packaging box buffer machine of this utility model.

[0019] Figure 5 This is a structural diagram of the transfer robot of the packaging box buffer machine of this utility model.

[0020] Figure 6 This is a three-dimensional structural diagram of the arrangement and pushing device of the packaging box buffer machine of this utility model.

[0021] Figure 7 This is a side view of the arrangement and pushing device of the packaging box buffer machine of this utility model.

[0022] Figure 8 This is a front structural diagram of the storage compartment of the packaging box buffer machine of this utility model.

[0023] Figure 9 This is a rear structural diagram of the storage compartment of the packaging box buffer machine of this utility model.

[0024] Figure 10This is a cross-sectional view of the storage compartment and the outgoing pushing mechanism of the packaging box buffer machine of this utility model.

[0025] Figure 11 This is a structural diagram of the lifting drive mechanism of the packaging box buffer machine of this utility model. Detailed Implementation

[0026] To explain in detail the technical content, structural features, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0027] like Figures 1 to 3 As shown, the packaging box buffer machine 100 of this utility model is used to buffer small cigarette boxes during transportation on the production line. It connects the upstream and downstream production equipment of the small cigarette box production line, and can also be set between equipment in two production processes of small cigarette boxes. The packaging box buffer machine 100 includes a frame 1 and a conveying device 2, a transfer robot 3, an arranging and pushing device 4, a storage bin 5, a lifting drive mechanism 6, and an outgoing pushing mechanism 7, all disposed within the frame 1. The surface of the frame 1 is provided with a shell to protect each mechanism. The arranging and pushing device is located on one side of the conveying device 2. The conveying device 2 is horizontally arranged. The transfer robot 3 is mounted on the frame 1 of the packaging box buffer machine 100 and is located between the conveying device 2 and the arranging and pushing device 4 to transfer the packaging boxes between the conveying device 2 and the arranging and pushing device 4. The storage bin 5 is located on one side of the arranging and pushing device 4, and the arrangement direction between the storage bin 5 and the arranging and pushing device 4 is perpendicular to the arrangement direction between the conveying device 2 and the arranging and pushing device 4. The arrangement and pushing device 4 pushes the packaging box to the storage compartment 5. The storage compartment 5 has a multi-layer structure, with multiple storage channels 51 arranged in each layer. The storage compartment 5 is movably mounted on the frame 1. The lifting drive mechanism 6 drives the storage compartment 5 to move one layer height after one layer is filled; the out-of-compartment pushing mechanism 7 is located on the side of the storage compartment 5 facing away from the arrangement and pushing device 4 to push the packaging box from the storage compartment 5 to the arrangement and pushing device 4. In addition, the packaging box buffer machine 100 also includes a control system, which controls the operation of the conveying device 2, the transfer robot 3, the arrangement and pushing device 4, the storage compartment 5, the lifting drive mechanism 6, and the out-of-compartment pushing mechanism 7.

[0028] Combination Figure 1 Please see Figure 4The conveying device 2 includes a conveyor belt 21, a first blocking device 22, and a second blocking device 23. The conveyor belt 21 can be a belt conveyor, a chain conveyor, or a roller conveyor, and is not limited to one form. The first blocking device 22 and the second blocking device 23 are arranged along the conveying direction of the conveyor belt 21 on one side of the conveyor belt 21, and the distance between the first blocking device 22 and the second blocking device 23 is not less than the width of the arranging and pushing device 4. In this embodiment, the distance between the first blocking device 22 and the second blocking device 23 is just enough to arrange five packaging boxes, and the width of the arranging and pushing device 4 is just enough to store five packaging boxes, while the depth of the storage compartment 5 is also set to be able to store five packaging boxes arranged in a row. In addition, the transfer robot 3 can grab five packaging boxes at the same time in one retrieval. This allows the conveying device 2, the transfer robot 3, the arranging and pushing device 4, and the storage compartment 5 to cooperate with each other. Both the first blocking device 22 and the second blocking device 23 include a cylinder and a stop block. The cylinder pushes the stop block, causing it to extend onto the conveyor belt 21, thereby achieving the purpose of blocking. Additionally, the conveyor belt 21 is equipped with a sensor capable of counting and calculating the number of packaging boxes entering between the first blocking device 22 and the second blocking device 23. This allows the control system to regulate the extension and retraction of the first blocking device 22 and the second blocking device 23. By setting the first blocking device 22 and the second blocking device 23, the conveyor belt 21 can collect packaging boxes in a specific quantity, avoiding interference from other packaging boxes and ensuring operational reliability.

[0029] Combination Figure 1 Please see Figure 5The transfer robot 3 includes a drive mechanism 31, a first suction cup assembly 32, and a second suction cup assembly 33. The first and second suction cup assemblies 32 and 33 are arranged perpendicular to the conveying direction of the conveyor belt 21 and connected to the output end of the drive mechanism 31. The first and second suction cup assemblies 32 and 33 have identical structures, each having multiple suction cups arranged in an array. The suction cups are connected to a negative pressure device, which generates negative or positive pressure to allow the suction cups to pick up or release the packaging boxes. The suction cups are arranged in the same direction as the conveying direction of the conveying device 2. Since there are five suction cups, all packaging boxes between the first blocking device 22 and the second blocking device 23 can be removed in one go. The drive mechanism 31 simultaneously drives the first and second suction cup assemblies 32 and 33, causing the first suction cup assembly 32 to move between the conveyor belt 21 and the first receiving slot of the arranging and pushing device 4, and causing the second suction cup assembly 33 to move between the first and second receiving slots of the arranging and pushing device 4. By setting up a first suction cup assembly 32 and a second suction cup assembly 33, and using a drive mechanism 31 to drive both suction cup assemblies simultaneously, the transfer robot 3 achieves dual linkage of the suction cup assemblies, thereby improving the speed and efficiency of handling. Alternatively, only one suction cup assembly can be set up, with the drive mechanism 31 driving one suction cup assembly to move between the conveyor belt 21 and the arrangement and pushing device 4, achieving the purpose of transferring packaging boxes. The drive mechanism 31 includes a servo motor 311, a bracket 312, a connecting block 313, a slider 314, and a connecting arm 315. The servo motor 311 is mounted on the bracket 312, and its output end is connected to the connecting block 313 via a connecting handle 316. One end of the connecting arm 315 is connected to the connecting block 313, and the first suction cup assembly 32 and the second suction cup assembly 33 are connected to the other end of the connecting arm 315. The support 312 is provided with a first track 312a and a second track 312b. The first track 312a is arranged perpendicular to the conveying direction of the conveying device 2, and the second track 312b is located on the same plane as the first track 312a and has an arched structure. The slider 314 is slidably disposed on the first track 312a, and the connecting block 313 is slidably and vertically disposed on the slider 314 perpendicular to the first track 312a. The connecting block 313 has a sliding pin 313a, which is slidably disposed within the second track 312b.The servo motor 311 drives the connecting handle 316, thereby causing the connecting block 313 to move along the second track 312b, so that the connecting block 313 can move from one end of the second track 312b to the other end, thereby causing the first suction cup assembly 32 to move between the conveyor belt 21 and the first receiving groove of the arrangement pushing device 4, and causing the second suction cup assembly 33 to move between the first receiving groove and the second receiving groove of the arrangement pushing device 4.

[0030] like Figure 6 and Figure 7As shown, the arrangement and pushing device 4 includes a circulating conveyor belt 41, a circulating drive mechanism, a push rod 43, and a pushing mechanism 44. The conveying direction of the circulating conveyor belt 41 is perpendicular to the conveying direction of the conveying device 2. The circulating conveyor belt 41 has multiple receiving grooves 411 arranged along its conveying direction for arranging and placing packaging boxes. The circulating drive mechanism drives the circulating conveyor belt 41 to move in a step-by-step manner. The circulating drive mechanism includes a motor, a pair of rollers, and a support plate, wherein one of the rollers is connected to the output end of the motor. The circulating conveyor belt 41 is wound between the two rollers 41a and is disposed on the surface of the support plate. Specifically, the circulating conveyor belt 41 has multiple protruding ribs 412, and the extending direction of the ribs 412 is parallel to the conveying direction of the conveying device 2. The receiving grooves 411 are formed between two adjacent ribs 412; each receiving groove 411 corresponds one-to-one with a storage channel 51 of the storage compartment 5. By setting ribs 412, multiple receiving slots 411 for accommodating packaging boxes can be divided on the circulating conveyor belt 41. This achieves both positioning of the packaging boxes and guiding them when the pushing mechanism 44 pushes them into the storage bin 5, ensuring accurate entry of the packaging boxes into the storage bin 5 and improving the stability of equipment operation. The push rod 43 is horizontally arranged across each of the receiving slots 411; the pushing mechanism 44 drives the push rod 43 to move in a direction perpendicular to the conveying direction of the circulating conveyor belt 41, pushing the packaging boxes in each receiving slot 411 into the storage bin 5. The pushing mechanism 44 includes a support bracket 441, a servo motor 442, a lead screw, and a slider 444. The output end of the servo motor 442 is connected to the lead screw, and the central axis of the lead screw is parallel to the conveying direction of the conveying device 2. The slider 444 is threadedly connected to the lead screw and slidably disposed on the support bracket 441. One end of the push rod 43 is connected to the slider 444, and the other end is slidably mounted on the support bracket 441 via a slide rail 445. The pushing mechanism 44 can drive the push rod 43 to move, thereby pushing all the packaging boxes on the circulating conveyor belt 41 into the storage compartment 5 at once. In addition, the push rod 43 can push the packaging boxes into the storage compartments 5 located on opposite sides of it by moving back and forth once. The push rod 43 has a pushing part 431 that protrudes outward and abuts against the packaging box at the position of each packing box. By using the circulating conveyor belt 41 to move the packaging boxes in a step-by-step manner, the circulating conveyor belt 41 can be fully loaded with packaging boxes. Then, by using the pushing mechanism 44 and the push rod 43, the packaging boxes on the circulating conveyor belt 41 can be pushed into the storage compartment 5 at once. This not only realizes the buffering of packaging boxes in the storage compartment 5, but also simplifies the number of times the packaging boxes are pushed and improves the buffering efficiency.

[0031] like Figure 8 As shown, the storage compartment 5 has multiple layers along the vertical direction, and each layer has multiple storage channels 51 arranged in a row. Each storage channel 51 has a through port at both ends, which respectively connects to the arrangement and pushing device 4 and the discharge pushing mechanism 7. This increases the capacity of the storage compartment 5 and facilitates the input of packaging boxes by the arrangement and pushing device 4 and the output of packaging boxes by the discharge pushing mechanism 7.

[0032] Please see Figure 8 and Figure 11 The lifting drive mechanism 316 includes a servo motor 316a, a chain 316b, and a track 316c. The storage compartment 5 is connected to the chain 316b. Sliding sleeves 5a are provided on the opposite side walls of the storage compartment 5. A guide post 312a with its central axis vertically arranged is provided on the support 312. The sliding sleeves 5a are slidably fitted onto the guide post 312a. Specifically, the top of the storage compartment 5 is connected to the chain 316b. The servo motor drives the chain 316b to rotate, thereby causing the storage compartment 5 to rise or fall. Specifically, there are two storage compartments 5 and one lifting drive mechanism 316. The storage compartments 5 are respectively arranged on opposite sides of the arrangement and pushing device 4. The two storage compartments 5 are respectively connected to the two ends of the chain 316b, so that the two storage compartments 5 move in opposite directions; that is, one storage compartment 5 moves up one layer after receiving the packaging box, while the other storage compartment 5 moves down one layer after receiving the packaging box. By using the chain 316b of the lifting drive mechanism 316 to simultaneously drive the two storage bins 5, the cache capacity can be increased, the number of times the lifting drive mechanism 316 is driven can be reduced, the operation of the equipment can be simplified, and the efficiency can be improved.

[0033] Please see Figure 9 and Figure 10The outgoing push mechanism 7 is mounted on the frame 1 and includes a pusher drive mechanism and a pusher component 71. The output end of the pusher drive mechanism is connected to the pusher component 71 to drive the pusher component 71 to extend into the storage compartment 5 and push the packaging box onto the arrangement push device 4. Specifically, the outgoing push mechanism 7 also includes a guide rail 73. The pusher component 71 is a flexible plate chain. The pusher drive mechanism includes a servo motor 72 and a lead screw slider assembly 74. The output end of the servo motor 72 is connected to the lead screw of the lead screw slider assembly 74 to push the slider of the lead screw slider assembly to move along the stacking direction of the storage compartment 5. The lower end outlet of the guide rail 73 is directly connected to the storage channel 51 of the storage compartment 5 on the horizontal plane, but the two are not in contact, so as not to affect the up and down movement of the storage compartment 5. The guide rail 73 extends along the stacking direction of the storage compartment 5 and extends to the highest position of the storage compartment 5. The flexible plate chain is slidably disposed within the guide rail 73, with one end connected to the slider and the other end extending into or out of the storage compartment 5 to push the packaging box out of the storage compartment 5 and move it to the arrangement and pushing device 4. By setting up the flexible plate chain and using the lead screw slider pair 74 to drive the slider to move along the stacking direction of the storage compartment 5, the flexible plate chain can enter the storage compartment 5. This not only pushes the packaging box out of the storage compartment 5, but also reduces the lateral volume occupied by the out-of-compartment pushing mechanism 7, thus making the packaging box buffer machine 100 smaller and more compact.

[0034] Based on the above and in conjunction with the accompanying drawings, the working process of the packaging box buffer machine 100 of this utility model will be described in detail below:

[0035] When downstream equipment needs to stop while upstream equipment continues operating, a packaging box buffer 100 is required for buffering. The conveying device 2 transports the packaging boxes to the position of the transfer robot 3. When the sensor detects the first packaging box passing by, it controls the second blocking device 23 to extend, thereby blocking the first packaging box from continuing to move on the conveyor belt 21. Subsequently, when the sensor detects the fifth packaging box passing by, it controls the first blocking device 22 to extend, thereby preventing the sixth packaging box from entering the area between the first blocking device 22 and the second blocking device 23. At this time, the first suction cup assembly 32 and the second suction cup assembly 33 of the transfer robot 3 move synchronously one station. The first suction cup assembly 32 moves above the five packaging boxes on the conveying device 2, and then picks up these five packaging boxes. Then, the drive mechanism 31 of the transfer robot 3 drives the first suction cup assembly 32 and the second suction cup assembly 33 to move synchronously to reset. At this time, the first suction cup assembly 32 returns to the first receiving groove 411 of the circulating conveyor belt 41 of the arrangement and pushing device 4 and places the five packaging boxes on the first receiving groove 411. In this sequence, when the first suction cup assembly 32 picks up five packaging boxes from the conveying device 2 for the second time, the second suction cup assembly 33 simultaneously picks up five packaging boxes from the first receiving slot 411 and places them onto the second receiving slot 411. Then, the drive mechanism 31 of the arranging and pushing device 4 drives the circulating conveyor belt 41 to move in a stepwise manner, moving the packaging boxes away from the transfer robot 3 until the circulating conveyor belt 41 is full of packaging boxes. At this time, the pushing mechanism 44 pushes the push rod 43 to move, and the push rod 43 pushes the packaging boxes into the corresponding storage channels 51 on the corresponding layer of the storage compartment 5 on one side. When the circulating conveyor belt 41 is full of packaging boxes again, the pushing mechanism 44 pushes the push rod 43 to move in the opposite direction, and the push rod 43 pushes the packaging boxes into the corresponding storage channels 51 on the corresponding layer of the storage compartment 5 on the other side. Once all the packaging boxes are stored in the storage channels 51 on the same level of the storage compartments 5 on both sides, the lifting drive mechanism 316 is activated. The servo motor 316a drives the chain 316b to move in a stepping motion, causing the chain 316b to move both storage compartments 5 by one layer height. That is, the storage compartment 5 on one side moves down one layer height, and the storage compartment 5 on the other side moves up one layer height. This process continues until all the packaging boxes are cached in all the storage channels 51 of the storage compartments 5. When the upstream equipment needs to stop but the downstream equipment does not, the packaging box cache machine 100 needs to release the packaging boxes.Specifically, the servo motor 72 of the outgoing push mechanism 7 is activated, driving the lead screw of the lead screw-slider pair 74 to rotate. The lead screw of the lead screw-slider pair 74 drives the slider of the lead screw-slider pair 74 to move downward. The slider of the lead screw-slider pair 74 pushes each of the flexible plate chains to slide downward along the guide rail 73. The flexible plate chains extend into the corresponding storage channels 51 of that layer, thereby pushing the packaging boxes in each storage channel 51 into the respective receiving slots 411 of the circulating conveyor belt 41 of the arrangement and pushing device 4. Afterward, the transfer robot 3 transfers each row of packaging boxes to the conveyor belt 21, and the conveyor belt 21 then transports the packaging boxes to downstream equipment.

[0036] This invention incorporates a conveying device 2 to connect upstream and downstream equipment, allowing packaging boxes to enter and exit the packaging box buffer machine 100. A transfer robot 3 is installed between the arranging and pushing device 4 and the conveying device 2 to transfer packaging boxes between them. A storage bin 5 is provided on one side of the arranging and pushing device 4 to store packaging boxes, and an out-of-bin pushing mechanism 7 allows packaging boxes to be pushed back onto the arranging and pushing device 4. Therefore, when the arranging and pushing device 4 pushes packaging boxes into the storage bin 5, it buffers the packaging boxes transported from upstream, allowing downstream equipment to be stopped for maintenance. Conversely, when the out-of-bin pushing mechanism 7 pushes the packaging boxes from the storage bin 5 back onto the arranging and pushing device 4, the arranging and pushing device 4 and the transfer robot 3 enable the downstream output of packaging boxes, allowing upstream equipment to be stopped for maintenance. Thus, continuous operation of the production line is achieved without the need for simultaneous shutdown of upstream and downstream equipment, effectively improving equipment uptime.

[0037] This solution can also be used for other packaging boxes. Those skilled in the art only need to modify the shape and size of the corresponding packaging box in each mechanism to make them compatible. This will not be explained in detail here.

[0038] The above-disclosed examples are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent changes made in accordance with the scope of the present utility model application shall still fall within the scope of the present utility model.

Claims

1. A packaging box buffer machine, characterized in that: The system includes a conveying device, a transfer robot, an arranging and pushing device, a storage bin, a lifting drive mechanism, and an outgoing pushing mechanism. The arranging and pushing device is located on one side of the conveying device. The transfer robot is positioned between the conveying device and the arranging and pushing device to transfer packaging boxes between them. The storage bin is located on one side of the arranging and pushing device, and the arrangement direction between the storage bin and the arranging and pushing device is perpendicular to the arrangement direction between the conveying device and the arranging and pushing device. The arranging and pushing device pushes the packaging boxes into the storage bin. The storage bin has a multi-layer structure, and the lifting drive mechanism drives the storage bin to move one layer height after each layer is filled. The outgoing push mechanism is located on the side of the storage compartment facing away from the arrangement push device, so as to push the packaging box from the storage compartment to the arrangement push device.

2. The packaging box buffer machine according to claim 1, characterized in that: The conveying device includes a conveyor belt, a first blocking device, and a second blocking device. The first blocking device and the second blocking device are arranged on one side of the conveyor belt along the conveying direction of the conveyor belt, and the distance between the first blocking device and the second blocking device is not less than the width of the arrangement and pushing device.

3. The packaging box buffer machine according to claim 2, characterized in that: The transfer robot includes a drive mechanism, a first suction cup assembly, and a second suction cup assembly. The first and second suction cup assemblies are arranged perpendicular to the conveying direction of the conveyor belt and connected to the output end of the drive mechanism. The drive mechanism simultaneously drives the first and second suction cup assemblies, causing the first suction cup assembly to transfer between the conveyor belt and the first receiving groove of the arranging and pushing device, and causing the second suction cup assembly to transfer between the first and second receiving grooves of the arranging and pushing device.

4. The packaging box buffer machine according to claim 1, characterized in that: The arrangement and pushing device includes a circulating conveyor belt, a circulating drive mechanism, a push rod, and a pushing mechanism. The conveying direction of the circulating conveyor belt is perpendicular to the conveying direction of the conveying device. The circulating conveyor belt is provided with multiple receiving slots arranged along its conveying direction for arranging and placing packaging boxes. The circulating drive mechanism drives the circulating conveyor belt to move in a stepping manner. The push rod is arranged transversely across each of the receiving slots. The pushing mechanism drives the push rod to move in a direction perpendicular to the conveying direction of the circulating conveyor belt, so as to push the packaging boxes in each receiving slot into the storage compartment.

5. The packaging box buffer machine according to claim 4, characterized in that: The circulating conveyor belt is provided with multiple protruding ribs, and the receiving groove is formed between two adjacent ribs.

6. The packaging box buffer machine according to claim 1, characterized in that: The storage compartment has multiple layers along the vertical direction, and each layer has multiple storage channels arranged in a row. The two ends of each storage channel have through ports, which are respectively connected to the arrangement and pushing device and the discharge pushing mechanism.

7. The packaging box buffer machine according to claim 1, characterized in that: The lifting drive mechanism includes a servo motor, a chain, and a track. The storage compartment is connected to the chain, and the servo motor drives the chain to move, thereby causing the storage compartment to rise or fall.

8. The packaging box buffer machine according to claim 7, characterized in that: The number of storage compartments is two, the number of lifting drive mechanisms is one, and the storage compartments are respectively arranged on opposite sides of the arrangement and pushing device; the two storage compartments are respectively connected to opposite sides of the chain, so that the two storage compartments move in opposite directions.

9. The packaging box buffer machine according to claim 1, characterized in that: The outgoing push mechanism includes a pusher drive mechanism and a pusher component. The output end of the pusher drive mechanism is connected to the pusher component to drive the pusher component to extend into the storage compartment and push the packaging box onto the arrangement push device.

10. The packaging box buffer machine according to claim 9, characterized in that: The discharge pushing mechanism also includes a guide rail, the pushing component is a flexible plate chain, and the pushing drive mechanism includes a servo motor and a lead screw and slider assembly. The output end of the servo motor is connected to the lead screw of the lead screw and slider assembly to push the slider of the lead screw and slider assembly to move along the stacking direction of the storage bin. The guide rail is connected to the storage bin, and the flexible plate chain is slidably disposed in the guide rail with one end connected to the slider and the other end extending into or out of the storage bin to push the packaging box out of the storage bin.

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