Conveying system for a flexible packaging plant

Abstract

The present application relates to a conveying system for a flexible packaging device, which comprises a first conveyor, a transfer device, a second conveyor, a handling device and a carrying platform in sequence along the movement direction of the packaging box, wherein the first conveyor is used to receive and convey the packaging box prepared by a box making machine of the flexible packaging device, the transfer device is arranged to be capable of transferring the packaging box arriving at the output end of the first conveyor to the input end of the second conveyor in sequence, the second conveyor is used to convey the packaging box and allow the box filling machine of the flexible packaging device to complete the box filling operation on the second conveyor, the handling device is used to take out the packaging box from the conveyor and place the packaging box on the carrying platform, and the carrying platform is used to receive the packaging box and allow the box sealing machine of the flexible packaging device to complete the box sealing operation on the carrying platform. The conveying system can meet the needs of the flexible packaging device and has the advantages of low cost and small footprint.

Description

Technical Field

[0001] Embodiments of the present invention relate to the field of flexible packaging equipment. More specifically, the present invention relates to a conveying system for flexible packaging equipment. Background Technology

[0002] Flexible packaging equipment is widely used in food, pharmaceuticals, and daily necessities, characterized by its high flexibility and wide range of applications. Its main advantage lies in its ability to adjust its application scope according to actual needs, enabling the packaging of multiple product categories or specifications. Typical flexible packaging equipment usually consists of a carton-making machine, a carton-packing machine, a carton-sealing machine, and a magnetic levitation conveyor system.

[0003] The magnetic levitation conveyor system controls the movement of the magnetic levitation vehicle and the packaging boxes it carries along a predetermined track by changing the magnetic field. This system exhibits high flexibility, especially in that the magnetic levitation vehicle can change its feeding rhythm at any time while transporting packaging boxes to adapt to the operational needs of carton making machines, cartoning machines, and sealing machines.

[0004] While magnetic levitation conveyor systems perform well in flexible packaging equipment, they also have some drawbacks. First, their implementation requires high-quality components and assembly, resulting in high costs. Second, magnetic levitation conveyor systems often employ a horizontal ring layout to achieve the cyclical operation of the levitation vehicles, leading to a large footprint. Summary of the Invention

[0005] To address one or more of the technical problems mentioned above, the present invention provides a conveying system for flexible packaging equipment that meets the needs of flexible packaging equipment and has advantages such as low cost and small footprint.

[0006] This invention provides a conveying system for flexible packaging equipment, which sequentially includes a first conveyor, a conveying device, a second conveyor, a handling device, and a carrying platform along the movement direction of the packaging box. The first conveyor is configured to receive and convey the packaging boxes prepared by the box-making machine of the flexible packaging equipment. The conveying device is configured to successively transfer packaging boxes arriving at the output end of the first conveyor to the input end of the second conveyor. The second conveyor is configured to convey the packaging boxes and allow the box-packing machine of the flexible packaging equipment to complete the box-packing operation on the second conveyor. The handling device is configured to remove the packaging boxes from the conveyor and place them on the carrying platform. The carrying platform is configured to receive the packaging boxes and allow the box-sealing machine of the flexible packaging equipment to complete the box-sealing operation on the carrying platform.

[0007] The aforementioned conveying system mainly consists of a first conveyor, a second conveyor, a carrying platform, a conveying device, and a handling device. The first conveyor, second conveyor, and carrying platform are sequentially adapted to the operational needs of the carton-making machine, carton-packing machine, and carton-sealing machine to transport or carry packaging boxes. The conveying device and handling device sequentially realize the transfer of packaging boxes between adjacent conveyors and the handling between the conveyors and the carrying platform. This design ensures that the conveying system has different rhythms when conveying packaging boxes and can adapt to the operational needs of the carton-making machine, carton-packing machine, and carton-sealing machine, ensuring the normal operation of the flexible packaging equipment. More importantly, because this conveying system has lower requirements for components and assembly, and the conveyors can be arranged in a circular pattern in the vertical direction, it has lower manufacturing costs and a smaller footprint compared to existing magnetic levitation conveying systems. Attached Figure Description

[0008] The above and other objects, features, and advantages of exemplary embodiments of the present invention will become readily apparent upon reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the invention are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0009] Figure 1 A diagram illustrating the usage status of a conveying system for flexible packaging equipment according to an embodiment of the present invention is shown.

[0010] Figure 2 It shows Figure 1 A three-dimensional schematic diagram of the conveying device of the conveying system in use.

[0011] Figures 3 to 8 It shows Figure 2 The diagram shows the structure of the conveying device under different usage conditions.

[0012] Figure 9 It shows Figure 1 A three-dimensional schematic diagram of the conveying device of the conveying system in use;

[0013] Figure 10 It shows Figure 1 A three-dimensional schematic diagram of the conveying device of the conveying system shown;

[0014] Figure 11 It shows Figure 1 A three-dimensional schematic diagram of the support platform of the conveying system shown;

[0015] Figure 12 and Figure 13 It shows Figure 11 The diagram shows the structural schematics of the support platform under different usage conditions.

[0016] Figure 14It shows Figure 11 A three-dimensional schematic diagram of the first and second rotating plates of the supporting platform shown;

[0017] Figure 15 It shows Figure 11 Top view of the supporting platform shown;

[0018] Figure 16 It shows Figure 1 A three-dimensional schematic diagram of the jet blowing device of the conveying system shown;

[0019] Figure 17 The adjacent packaging boxes are shown in the image. Figure 16 The diagram shows the blowing process of the blowing device, including the starting and ending states.

[0020] Explanation of reference numerals in the attached drawings: 100, conveying system; 200, carton making machine; 300, carton packing machine; 400, carton sealing machine; 500, glue spraying machine; 600, packaging box; 600a, packaging box; 600b, packaging box; 1, first conveyor; 11, first blocking component; 2, conveying device; 21, slide rail component; 22, pushing mechanism; 221, first driven wheel; 222, first driving wheel; 223, first flexible component; 224, handling component; 23, power mechanism; 231, first servo motor; 232, transmission assembly; 2321, transmission shaft; 2 322. First bevel gear; 2323. Second bevel gear; 2324. Third bevel gear; 2325. Fourth bevel gear; 2326. First transmission component; 2327. Second transmission component; 3. Second conveyor; 31. Second blocking component; 4. Handling device; 41. Multi-axis drive platform; 411. Translation component; 4111. Base; 4112. Slide table; 4113. First linear drive mechanism; 41131. Second driving wheel; 41132. Second driven wheel; 41133. Second flexible component; 41134. Second servo motor; 41 2. Lifting assembly; 4121. Support beam; 4122. Second linear drive mechanism; 41221. Drive wheel; 41222. Traction component; 41223. First reversing wheel; 41224. Second reversing wheel; 41225. Third servo motor; 42. Picking mechanism; 421. Bearing component; 422. Picking component; 423. Telescopic assembly; 5. Bearing platform; 511. First bracket; 5111. First bearing part; 512. Second bracket; 5121. Second bearing part; 521. First rotating plate; 5211. First support bottom; 52 12. First positioning part; 5213. First bending part; 5214. First bending part; 522. Second rotating plate; 5221. Second support bottom; 5222. Second positioning part; 5223. Second bending part; 5224. Second bending part; 531. First drive mechanism; 5311. First swing arm; 5312. First linear actuator; 532. Second drive mechanism; 5321. Second swing arm; 5322. Second linear actuator; 541. First pivot; 542. Second pivot; 6. Spraying device; 61. First nozzle; 62. Second nozzle. Detailed Implementation

[0021] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0022] To address the drawbacks of traditional magnetic levitation conveying systems, such as high cost and large footprint, this invention provides a conveying system for flexible packaging equipment. Figure 1 A diagram illustrating the usage state of a conveying system for flexible packaging equipment according to an embodiment of the present invention is shown. Figure 1 As shown, the conveying system 100, along the direction of movement of the packaging box 600, sequentially includes a first conveyor 1, a conveying device 2, a second conveyor 3, a handling device 4, and a carrying platform 5. The first conveyor 1 is configured to receive and convey the packaging boxes 600 produced by the box-making machine 200 of the flexible packaging equipment. The conveying device 2 is configured to successively transfer the packaging boxes 600 arriving at the output end of the first conveyor 1 to the input end of the second conveyor 3. The second conveyor 3 is configured to convey the packaging boxes 600 and allow the box-packing machine 300 of the flexible packaging equipment to complete the box-packing operation on the second conveyor 3. The handling device 4 is configured to remove the packaging boxes 600 from the conveyor and place them on the carrying platform 5. The carrying platform 5 is configured to receive the packaging boxes 600 and allow the sealing machine 400 of the flexible packaging equipment to complete the sealing operation on the carrying platform 5. It should be emphasized that the term "packaging box 600" mentioned in the context should be broadly interpreted to include various containers used for transporting, storing, and packaging goods.

[0023] Therefore, the first conveyor 1, the second conveyor 3, and the carrying platform 5 are sequentially adapted to the operational needs of the box-making machine 200, the carton-packing machine 300, and the sealing machine 400 to transport or carry the packaging boxes 600. The conveying device 2 and the handling device 4 sequentially realize the transfer of the packaging boxes 600 between the first conveyor 1 and the second conveyor 3, and the handling between the second conveyor 3 and the carrying platform 5. This design ensures that the conveying system 100 has different rhythms when conveying the packaging boxes 600 and can adapt to the operational needs of the box-making machine 200, the carton-packing machine 300, and the sealing machine 400, ensuring that the flexible packaging equipment can operate normally. More importantly, because the conveying system 100 has lower requirements for parts and assembly, and the conveyors can be arranged in a ring in the vertical direction, it has lower manufacturing costs and a smaller footprint compared to existing magnetic levitation conveying systems.

[0024] Next, combine Figures 2 to 8 The first conveyor 1, the conveying device 2, and the second conveyor 3 mentioned above will be described by way of example. Figure 2As shown, the first conveyor 1 and the second conveyor 3 can be selected as conveyors suitable for conveying packaging boxes, such as belt conveyors or chain conveyors, especially double-row belt conveyors or double-row chain conveyors. When the first conveyor 1 and the second conveyor 3 are selected as double-row belt conveyors or double-row chain conveyors, they are particularly suitable as a width-adjustable structure, thereby enabling the transport of packaging boxes of more sizes. As an example, the chain or belt of the first conveyor 1 is provided with a plurality of circumferentially arranged first stops 11, and the chain or belt of the second conveyor 3 is provided with a plurality of circumferentially arranged second stops 31. In use, the packaging boxes 600 placed on the chain or belt of the first conveyor 1 are all located between corresponding and adjacent first stops 11, and the packaging boxes 600 arriving on the second conveyor 3 are also located between corresponding and adjacent second stops 31.

[0025] like Figure 2 As shown, the conveying device 2 includes a third frame (not shown) fixed relative to a first frame of the first conveyor 1 and a second frame of the second conveyor 3. The specific structure of the third frame is not limited, as long as it can support and install the various parts within the conveying device 2 without interfering with their operation. As a low-cost example, the third frame includes two symmetrical side plate structures that are detachably or integrally connected to the first and second frames.

[0026] The conveying device 2 also includes a pushing mechanism 22 mounted on a third frame and having a transport member 224, and a power mechanism 23 mounted on the third frame and connected to the pushing mechanism 22. The pushing mechanism 22 is located on the side of the interval area between the first conveyor 1 and the second conveyor 3. The power mechanism 23 is used to periodically drive the pushing mechanism 22 to force the transport member 224 to successively transfer the packaging box 600 arriving at the output end of the first conveyor 1 to the input end of the second conveyor 3. It is worth noting that existing conveying devices mainly use robotic arms employing a large number of servo motors and bionic joints, which suffer from drawbacks such as complex structure, high failure rate, high cost, and slow response. However, the conveying device 2 mentioned above does not require the large number of servo motors and bionic joints found in existing technologies; only one or two servo motors are needed, or even other drive mechanisms capable of providing periodic drive. Compared to existing robotic arms, it has advantages such as simple structure, low cost, low failure rate, and rapid response.

[0027] In this embodiment, the conveying component 224 of the pushing mechanism 22 can be specifically selected as a clamping structure, a suction cup structure, or a pusher structure, depending on the properties of the packaging box 600. As a preferred example, the conveying component 224 is selected as a pusher structure. The conveying device 2 may also include a slide rail component 21 mounted on a third frame and located in the interval area between the first conveyor 1 and the second conveyor 3. The first conveyor 1, the second conveyor 3, and the slide rail component 21 are all coplanar in terms of supporting and conveying the packaging box 600, and are collectively referred to as the conveying plane S of the conveying device 2 (see [link to documentation]). Figure 3 When the packaging box 600 enters between the first conveyor 1 and the second conveyor 3, the slide rail component 21 can support the packaging box 600 and prevent the packaging box 600 from falling during the transfer process.

[0028] In addition to the conveying component 224, the pushing mechanism 22 also includes a first driven wheel 221 rotatably mounted on the third frame and located to the side of the slide rail component 21, a first driving wheel 222 rotatably mounted on the third frame and located to the side of the slide rail component 21, and a first flexible component 223 sleeved on the first driving wheel 222 and the first driven wheel 221. The conveying component 224 is a pusher structure fixedly mounted on the first flexible component 223 and used to push the packaging box 600. The aforementioned combination of the first driving wheel 222, the first driven wheel 221, and the first flexible component 223 can be selected as a chain sprocket assembly, that is, the first driving wheel 222, the first driven wheel 221, and the first flexible component 223 are, in sequence, a driving sprocket, a driven sprocket, and a chain. The power mechanism 23 is connected to the drive sprocket and drives the drive sprocket to drive the chain and driven sprocket to operate together, so that the push block structure set on the chain can periodically enter between the first conveyor 1 and the second conveyor 3 to complete the handling task of the packaging box 600. As an example of a replaceable chain and sprocket assembly, the combination of the aforementioned first drive wheel 222, first driven wheel 221 and first flexible member 223 can also be selected as a belt and pulley assembly including a synchronous belt, that is, the first drive wheel 222 and the first driven wheel 221 are both pulleys, and the first flexible member 223 is a synchronous belt.

[0029] As an example, the pusher structure includes a base portion fixed to the first flexible member 223 and extending outward from the first flexible member 223, and a pushing portion extending downward from the end of the base portion away from the first flexible member 223 for contacting the packaging box 600. The pushing portion is used to increase the contact area between the pusher structure and the packaging box 600, ensuring that the pusher structure can push the packaging box 600 more smoothly. It should be emphasized that the specific structure of this pusher structure is not limited to this example, and those skilled in the art can also choose other structures, such as a strip structure, according to actual needs.

[0030] In this embodiment, the number of pushing mechanisms 22 mentioned above can be one or two. When there are two pushing mechanisms 22, the two pushing mechanisms 22 are symmetrically arranged about the slide rail component 21 and operate synchronously. The two pushing mechanisms 22 can push the packaging box 600 more smoothly and complete the handling task of the packaging box 600 more reliably. In order to achieve synchronous operation of the two pushing mechanisms 22, in addition to being implemented by one power mechanism 23, the two pushing mechanisms 22 can also be implemented by two power mechanisms 23.

[0031] The power mechanism 23 includes a first servo motor 231 and a transmission component 232 connected to the first servo motor 231 and the pushing mechanism 22, wherein the first servo motor 231 drives the pushing mechanism 22 through the transmission component 232. In order to drive two pushing mechanisms 22 simultaneously using only one power mechanism 23, the transmission assembly 232 includes a transmission shaft 2321 rotatably disposed below the slide rail component 21 and driven by a first servo motor 231, a first bevel gear 2322 synchronously rotatably sleeved on one end of the transmission shaft 2321, a second bevel gear 2323 synchronously rotatably disposed on the other end of the transmission shaft 2321, a third bevel gear 2324 rotatably disposed above the transmission shaft 2321 and meshing with the first bevel gear 2322, a fourth bevel gear 2325 rotatably disposed above the transmission shaft 2321 and meshing with the second bevel gear 2323, a first transmission component 2326 synchronously rotatably disposed above the third bevel gear 2324 and connected to one pushing mechanism 22, and a second transmission component 2327 synchronously rotatably disposed above the fourth bevel gear 2325 and connected to the other pushing mechanism 22. Both the first transmission component 2326 and the second transmission component 2327 can be selected as belt drive assemblies including a synchronous belt. This belt drive assembly includes a first pulley coaxially connected to the third bevel gear 2324 or the fourth bevel gear 2325, a second pulley coaxially connected to the first drive pulley 222 of the corresponding pushing mechanism 22, and a synchronous belt sleeved on the first and second pulleys. Besides belt drive assemblies, the first transmission component 2326 and the second transmission component 2327 can also be selected as gear assemblies or chain drive assemblies, etc. In use, the servo motor directly drives the transmission shaft 2321 to rotate. The rotating transmission shaft 2321 can drive the first drive pulley 222 of one pushing mechanism 22 through the first bevel gear 2322, the third bevel gear 2324, and the first transmission component 2326. On the other hand, it can drive the first drive pulley 222 of another pushing mechanism 22 through the second bevel gear 2323, the fourth bevel gear 2325, and the second transmission component 2327. In this way, only one power mechanism 23 can be used to simultaneously drive two pushing mechanisms 22 and ensure their synchronous operation. It should be noted that the synchronous rotation setting mentioned above can be specifically selected as key connection or set screw fixation, etc.

[0032] like Figures 3 to 8 As shown, in this embodiment, the packaging box 600 that moves between the output end (including itself) of the first conveyor 1 and the input end (including itself) of the second conveyor 3 is referred to as the target object. The critical time when the push block structure (a subordinate concept of the conveying component 224) contacts the target object is later than or equal to the time when the first blocking member 11, which is downstream of and adjacent to the target object, moves to a point just below the conveying plane S (see...). Figure 3 However, it occurs earlier than or equal to the time when the first blocking member 11, which is upstream of and adjacent to the target object, arrives directly above the sprocket or pulley at the output end of the first conveyor 1 (see [reference]). Figure 4 The critical time at which the pusher structure pushes the target object away from the first conveyor 1 is earlier than or equal to the time when the first blocking member 11, which is upstream of and adjacent to the target object, moves to a point just below the conveyor plane S (see...). Figure 5 The pusher structure is used to push the target object into the second conveyor 3 at a time later than or equal to the time when the second stop 31, which is downstream of and immediately adjacent to the target object, arrives directly above the sprocket or pulley at the input end of the second conveyor 3 (see [link]). Figure 6 However, it occurs earlier than or equal to the time when the second blocking member 31, which is upstream of and adjacent to the target object, moves to a point just above the conveying plane S (see [reference]). Figure 7 The critical time when the pusher structure detaches from the target object is later than or equal to the time when the second blocking member 31, which is upstream of and adjacent to the target object, arrives directly above the sprocket or pulley at the input end of the second conveyor 3 (see...). Figure 8 ).

[0033] Next, combine Figure 9 and Figure 10 The conveying device 4 mentioned above will be described by way of example. Figure 9 and Figure 10As shown, the conveying device 4 includes a multi-axis drive platform 41 and a picking mechanism 42 mounted on the multi-axis drive platform 41. The multi-axis drive platform 41 is arranged between the second conveyor 3 and the carrying platform 5 along the conveying direction of the second conveyor 3, and is used to drive the picking mechanism 42 to perform translational and lifting movements. The multi-axis drive platform 41 can not only drive the picking mechanism 42 to perform translational movements from the second conveyor 3 to the carrying platform 5 in the conveying direction of the second conveyor 3, but also drive the picking mechanism 42 to perform lifting movements for picking and placing actions. This ensures that the picking mechanism 42 can both enter the hollow area at the output end of the second conveyor 3 to remove the packaging box 600 from the second conveyor 3, and enter the hollow area of ​​the carrying platform 5 to place the packaging box 600 on the carrying platform 5. More importantly, because the multi-axis drive platform 41 can drive the picking mechanism 42 to follow the movement of the packaging box 600 in the conveying direction of the second conveyor 3 and simultaneously lift the packaging box 600 during the material picking process, it ensures that the picking mechanism 42 can safely remove the packaging box 600 from the second conveyor 3 and place it on the carrying platform 5 while the second conveyor 3 is running. Therefore, this handling device 4 does not require the second conveyor 3 to stop in a coordinated manner to complete the handling of the packaging box 600, resulting in higher handling efficiency and making it easier to improve the production efficiency of packaging equipment. At the same time, this method can also ensure that the packaging box 600 is less likely to rub against the second conveyor 3 when it is taken out, effectively protecting the integrity of the bottom and sides of the packaging box 600.

[0034] It should also be noted that, since the conveying device 4 can move the packaging box 600 in a direction parallel to the conveying direction of the second conveyor 3 after the packaging box 600 is taken out and before it is placed, it is particularly suitable for working with the glue spraying mechanism of the glue spraying machine 500 to complete the glue spraying operation of the packaging box 600. There is no need to configure an additional conveying mechanism for the glue spraying mechanism, which can save costs and further improve the production efficiency of the packaging equipment.

[0035] In one embodiment, the picking mechanism 42 includes a support member 421 connected to the multi-axis drive platform 41 and movable in the hollow region at the output end of the second conveyor 3, and at least one picking member 422 disposed on the surface of the support member 421 facing away from the multi-axis drive platform 41. The picking member 422 can be selected as a pneumatic gripper, interdigitator, suction cup, or adhesive structure, depending on actual needs, to pick up the packaging box 600 by gripping, forking, sucking, or sticking. As a preferred example, a suction cup is recommended as the picking member 422 to effectively avoid damage to the packaging box 600 during the picking and placing process.

[0036] In one embodiment, the number of picking components 422 is one or more. When the number of picking components 422 is one, the picking mechanism 42 can pick up one package box 600 on the second conveyor 3 at a time. When the number of picking components 422 is multiple, the multiple picking components 422 are spaced equally along the conveying direction of the second conveyor 3, and the picking components 422 are set at the same height on the carrying component 421, so as to ensure that the picking mechanism 42 can pick up an equal number of package boxes 600 on the second conveyor 3 at a time.

[0037] As a preferred example, the number of pickup components 422 is three or more, and the multiple pickup components 422 are equally spaced along the conveying direction of the second conveyor 3, with each pickup component 422 having the same mounting height on the carrier component 421. Meanwhile, the pickup mechanism 42 also includes a telescopic assembly 423 disposed between the carrier component 421 and the pickup component 422 closest to the carrier platform 5. The telescopic assembly 423 is used to selectively drive the pickup component 422 away from or towards the carrier component 421, and to change the mounting height of the pickup component 422 closest to the carrier platform 5 on the carrier component 421. The telescopic assembly 423 includes a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder. The following will... Figure 10 Using this example, we will explain the principle and effect of the example. Figure 10 The three picking components 422 arranged from right to left are defined as the first picking component, the second picking component, and the third picking component, with only the first picking component 422 having a telescopic component 423 between it and the carrying component 421. During the picking process, the first picking component, with the help of the telescopic component 423, can be higher than the second and third picking components and pick up the first packaging box 600 at the output end of the second conveyor 3 before the second and third picking components. Then, the second picking component is left idle, and the third picking component is used to pick up the second packaging box 600 from the output end of the second conveyor 3. In this way, it is ensured that the picking component 422 can not only continue to pick up packaging boxes 600, but also increase the spacing between the packaging boxes 600. This ensures that the picking component 422 can place the two packaging boxes 600 with increased spacing onto the carrying platform 5 in subsequent processes (such as sealing), avoiding adverse effects such as interference caused by the packaging boxes 600 being too close together in subsequent processes.

[0038] In this embodiment, as Figure 9 and Figure 10As shown, the multi-axis drive platform 41 mainly consists of a translation component 411 and a lifting component 412. The translation component 411 includes a base 4111 arranged along the conveying direction of the second conveyor 3 and located below the second conveyor 3 and the carrying platform 5, a slide 4112 slidably mounted on the base 4111, and a first linear drive mechanism 4113 connected to the base 4111 and the slide 4112 and used to drive the slide 4112 to reciprocate on the base 4111 along the conveying direction of the second conveyor 3. The lifting component 412 includes a support beam 4121 slidably mounted on the slide 4112, a second linear drive mechanism 4122 connected to the slide 4112 and the support beam 4121 and used to drive the support beam 4121 to move up and down on the slide 4112, and a carrying component 421 vertically mounted on the top of the support beam 4121. The sliding connection between the slide table 4112 and the base 4111, and the sliding connection between the slide table 4112 and the support beam 4121, can preferably be achieved by linear guides. It should be noted that the multi-axis drive platform 41 is not limited to the structure described in this embodiment, but can also be other structures that can provide translational and lifting motion, such as the drive module sold by Festo (China) Co., Ltd., brand name FESTO, model EXCT.

[0039] In this embodiment, the first linear drive mechanism 4113 can be selected as a chain and sprocket assembly driven by a servo motor, a belt and pulley assembly driven by a servo motor, or a lead screw assembly driven by a servo motor, etc. As an example, such as... Figure 10As shown, the first linear drive mechanism 4113 specifically includes a second driving wheel 41131 rotatably mounted on one end of the base 4111, a second driven wheel 41132 rotatably mounted on the other end of the base 4111, a second flexible member 41133 sleeved on the second driving wheel 41131 and the second driven wheel 41132, and a second servo motor 41134 mounted on the base 4111 for driving the second driving wheel 41131, wherein the slide 4112 is fixed on the second flexible member 41133. The combination of the second driving wheel 41131, the second driven wheel 41132, and the second flexible member 41133 forms a synchronous belt pulley assembly, that is, the second driving wheel 41131, the second driven wheel 41132, and the second flexible member 41133 are, in sequence, the driving pulley, the driven pulley, and the synchronous belt. The second servo motor 41134 is connected to the driving pulley and drives the driving pulley to drive the synchronous belt and the driven pulley to rotate together, so that the slide table 4112 fixed on the synchronous belt can be driven by the synchronous belt and make translational movements on the base 4111. As an example of a replaceable belt and pulley assembly, the combination of the aforementioned second driving pulley 41131, second driven pulley 41132 and second flexible member 41133 can also be selected as a chain and sprocket assembly, that is, the second driving pulley 41131 and the second driven pulley 41132 are both sprockets, and the second flexible member 41133 is a chain.

[0040] Similarly, the second linear drive mechanism 4122 can also be selected as a chain and sprocket assembly driven by a servo motor, a belt and pulley assembly driven by a servo motor, or a lead screw assembly driven by a servo motor. As an example, the second linear drive mechanism 4122 includes a third servo motor 41225 mounted on a slide table 4112, a drive wheel 41221 fixedly sleeved on the shaft of the second servo motor 41134, a traction member 41222 connected at one end to the top end of the support beam 4121 and at the other end to the bottom end of the support beam 4121 and partially surrounding the drive wheel 41221, and a first reversing wheel 41223 rotatably mounted on the slide table 4112 and reversing the traction member 41222, and a rotatably mounted on the slide table. The second reversing wheel 41224 on the slide table 4112 reverses the direction of the traction member 41222. The drive wheel 41221 is further away from the support beam 4121 than the first reversing wheel 41223 and the second reversing wheel 41224, and is located between the first reversing wheel 41223 and the second reversing wheel 41224 in the height direction of the conveying device 4. The traction member 41222, the first reversing wheel 41223, the second reversing wheel 41224, and the traction member 41222 are chain and sprocket assemblies or belt and pulley assemblies including synchronous belts. In use, the third servo motor 41225 drives the drive wheel 41221 to roll on the traction member 41222 and forces the first reversing wheel 41223 and the second reversing wheel 41224 to also roll on the traction member 41222, thereby forcing the traction member 41222 and the support beam 4121 supporting the traction member 41222 to move up and down on the slide table 4112.

[0041] like Figure 11 As shown, the support platform 5 includes a fifth frame that is detachably or integrally connected to the first and second frames and is symmetrical to them. The fifth frame includes a first support 511 and a second support 512 arranged at intervals and opposite to each other. The first support 511 and the second support 512 sequentially include a first support portion 5111 and a second support portion 5121 disposed at their respective top ends. When the packaging box 600 is placed on the support platform 5, the first support portion 5111 and the second support portion 5121 support the packaging box 600. The top surfaces of the first support portion 5111 and the second support portion 5121 are preferably flat to support the packaging box 600. As a preferred example, the first support portion 5111 and the second support portion 5121 are strip structures with a support plane, and the first support portion 5111 and the second support portion 5121 are sequentially and detachably disposed on the first support 511 and the second support 512, thereby allowing the corresponding support portion to be replaced according to actual needs.

[0042] like Figures 12 to 13As shown, the support platform 5 includes a first rotating plate 521 rotatably mounted on the inner side of the first support 511 and having a first support bottom 5211; a second rotating plate 522 rotatably mounted on the inner side of the second support 512 and having a second support bottom 5221; a first drive mechanism 531 mounted on the first support 511 for driving the first rotating plate 521 to retract relative to the first support 511; and a second drive mechanism 532 mounted on the second support 512 for driving the second rotating plate 522 to retract relative to the second support 512. When both the first rotating plate 521 and the second rotating plate 522 are in the unfolded state, the first support bottom 5211 and the second support bottom 5221 are joined together and filled into the gap between the first support portion 5111 and the second support portion 5121, so that the first support portion 5111, the second support portion 5121, the first support bottom 5211, and the first support bottom 5211 can jointly support the packaging box 600 placed on the support platform 5. See [reference needed]. Figure 12 .

[0043] It is worth noting that the support platform 5 can selectively support the packaging box 600 over a wide range using the first rotating plate 521 and the second rotating plate 522. When the packaging box 600 needs to be placed, both the first rotating plate 521 and the second rotating plate 522 are in the retracted state and do not interfere with the handling device 4 that needs to enter the support platform 5 to perform the placement action. However, when a secondary operation (such as sealing) is required on the packaging box 600, both the first rotating plate 521 and the second rotating plate 522 are in the extended state, see [reference]. Figure 13 At this time, the first bearing part 5111, the second bearing part 5121, the first rotating plate 521 and the first rotating plate 521 can jointly support the packaging box 600 placed on the bearing platform 5 and complete the wide range of support for the packaging box 600, thereby avoiding serious deformation or damage to the packaging box 600 when it is being supported.

[0044] like Figure 12 , Figure 13 and Figure 14 As shown, the support platform 5 also includes a first pivot 541 for pivotally connecting the first rotating plate 521 to the first support 511, and a second pivot 542 for pivotally connecting the second rotating plate 522 to the second support 512. The first rotating plate 521 also has a first positioning portion 5212, which is located on both sides of the first pivot 541, along with the first support base 5211. The second rotating plate 522 also has a second positioning portion 5222, which is located on both sides of the second pivot 542, along with the second support base 5221. When both the first rotating plate 521 and the second rotating plate 522 are in the retracted state, the first positioning portion 5212 stands upright on the side of the first support portion 5111 away from the second support portion 5121, and the second positioning portion 5222 stands upright on the side of the second support portion 5121 away from the first support portion 5111. (See Figure 1). Figure 13 Therefore, the first rotating plate 521 and the second rotating plate 522 can not only support the packaging box 600 with the help of the first supporting bottom 5211 and the second supporting bottom 5221, but also position the packaging box 600 that falls onto the first supporting part 5111 and the second supporting part 5121 with the help of the first positioning part 5212 and the second positioning part 5222, so as to prevent the packaging box 600 from moving laterally in subsequent processes.

[0045] As an example, to better guide the packaging box 600 into the space between the first positioning part 5212 and the second positioning part 5222, the end of the first positioning part 5212 away from the first rotating plate 521 is bent in a direction away from the second positioning part 5222, and the end of the second positioning part 5222 away from the second pivot 542 is bent in a direction away from the first positioning part 5212. That is, the first positioning part 5212 and the second positioning part 5222 can accurately guide the packaging box 600 into the space between the first positioning part 5212 and the second positioning part 5222, ultimately placing it onto the first support part 5111 and the second support part 5121.

[0046] As an example, the first rotating plate 521 may also have a first bend 5213 located between the first positioning portion 5212 and the first pivot 541, the first bend 5213 being used to cause the first positioning portion 5212 to abut against the outside of the first support portion 5111 when upright. The second rotating plate 522 may also have a second bend 5223 located between the second positioning portion 5222 and the second pivot 542, the second bend 5223 being used to cause the second positioning portion 5222 to abut against the outside of the second support portion 5121 when upright. In this way, the rotation angle of the first rotating plate 521 and the second rotating plate 522 can be controlled and the packaging box 600 can be accurately guided to fall onto the first support portion 5111 and the second support portion 5121 to reliably position the packaging box 600.

[0047] As an example, the first rotating plate 521 also has a first curved portion 5214 located between the first support base 5211 and the first pivot 541, and the second rotating plate 522 also has a second curved portion 5224 located between the second support base 5221 and the first pivot 541. The first curved portion 5214 and the second curved portion 5224 are respectively used to cause the first support base 5211 and the second support base 5221 to enter the gap between the first support portion 5111 and the second support portion 5121, such that the top surfaces of the first support portion 5111, the second support portion 5121, the first support base 5211 and the second support base 5221 are coplanar. In this way, the first support portion 5111, the second support portion 5121, the first support base 5211 and the second support base 5221 can support the packaging box 600 in a flatter and safer manner.

[0048] As an example, such as Figure 15 As shown, the first support bottom 5211 and the second support bottom 5221 are either flat structures that can be aligned with each other or interlocking comb-like structures. Preferably, both the first support bottom 5211 and the second support bottom 5221 are comb-like structures. When both the first rotating plate 521 and the second rotating plate 522 are in the unfolded state, the aforementioned two comb-like structures interlock with each other so that they can support the packaging box 600 more evenly when carrying it. In addition, the interlocking comb-like structures can also be adapted to change with the spacing between the first support 511 and the second support 512. For example, when the packaging box 600 is too large and the spacing between the first support 511 and the second support 512 needs to be increased, the interlocking comb-like structures can reduce the degree of embedding and provide more even support for the packaging box 600. However, the flat structures, due to their distance from each other, will have too large gaps and will be difficult to support the packaging box 600 evenly.

[0049] like Figure 15 As shown, a first rotating plate 521, a second rotating plate 522, a first driving mechanism 531, and a second driving mechanism 532 that cooperate with each other together form a bottom-supporting positioning assembly, and the carrying platform 5 includes at least one bottom-supporting positioning assembly. As an example, the carrying platform 5 includes multiple bottom-supporting positioning assemblies, all of which are mounted on the first bracket 511 and the second bracket 512 and arranged sequentially along their length directions.

[0050] Back Figure 12 and Figure 13 The first drive mechanism 531 includes a first swing arm 5311 fixedly mounted on a first pivot 541, and a first linear actuator 5312 hinged at one end to the outside of the first support 511 and at the other end of the first swing arm 5311 away from the first pivot 541. The second drive mechanism 532 includes a second swing arm 5321 fixedly mounted on a second pivot 542, and a second linear actuator 5322 hinged at one end to the outside of the second support 512 and at the other end of the second swing arm 5321 away from the second pivot 542. Both the first linear actuator 5312 and the second linear actuator 5322 include actuators capable of generating linear motion, such as pneumatic cylinders, hydraulic cylinders, or electric cylinders. In use, the first linear actuator 5312 and the second linear actuator 5322 can drive the first pivot 541 and the second pivot 542 to move in opposite directions via the first swing arm 5311 and the second swing arm 5321, ensuring that the first rotating plate 521 and the second rotating plate 522 can be simultaneously in an extended or retracted state. In addition to this embodiment, the first linear actuator 5312 and the second linear actuator 5322 may also be selected as other drive devices capable of generating reciprocating rotation, such as a oscillating cylinder.

[0051] In this embodiment, as Figure 16 As shown, the conveying system 100 also includes an auxiliary conveying device 2 for feeding the i-th packaging box 600 and the (i+1)-th packaging box 600 into the second conveyor 3 in an overlapping manner, where i is a positive integer. The blowing device 6 includes a first nozzle 61 and / or a second nozzle 62. The first nozzle 61 is fixedly disposed above the input end of the second conveyor 3 and is used to blow the side cover of the i-th packaging box 600a when the conveying device 2 sequentially feeds the i-th packaging box 600a and the (i+1)-th packaging box 600b into the input end of the second conveyor 3. The second nozzle 62 is fixedly disposed above the input end of the second conveyor 3 and is used to blow the side cover of the (i+1)-th packaging box 600b when the conveying device 2 sequentially feeds the i-th packaging box 600a and the (i+1)-th packaging box 600b into the input end of the second conveyor 3. Here, the i-th packaging box 600a and the (i+1)-th packaging box 600b refer to packaging boxes 600 with the same specifications and adjacent to each other.

[0052] Therefore, the blowing device 6 can use the first nozzle 61 and / or the second nozzle 62 to blow on the lid side pages of the i-th packaging box 600a and / or the i+1-th packaging box 600b when they are about to overlap. This causes at least one of the lid side pages of the i-th packaging box 600a and the i+1-th packaging box 600b to bend, and makes it very easy for the lid side pages of the two boxes to overlap in a regular pattern. This eliminates the adverse effects of improper overlap on subsequent processes (such as boxing and sealing), and also reduces the risk of collision and damage to the lid side pages of the i-th packaging box 600a and the i+1-th packaging box 600b.

[0053] In this embodiment, when the blowing device 6 includes a first nozzle 61 and a second nozzle 62, the second nozzle 62 is positioned closer to the conveying device 2 than the first nozzle 61. The first nozzle 61 blows the outer side of the lid of the i-th packaging box 600a, while the second nozzle 62 blows the inner side of the lid of the (i+1)-th packaging box 600b. By implementing a staggered, opposite blowing method between the first nozzle 61 and the second nozzle 62, the lids of the i-th packaging box 600a and the (i+1)-th packaging box 600b can be bent in opposite directions, thereby more reliably ensuring that the lids of the two boxes overlap in a consistent pattern.

[0054] exist Figure 16 and Figure 17In the example shown, when the blowing device 6 includes a first nozzle 61 and a second nozzle 62, in order to ensure that the lids of the i-th packaging box 600a and the (i+1)-th packaging box 600b can overlap smoothly and without obstruction on the second conveyor 3, the positions of the first nozzle 61 and the second nozzle 62 are selected to satisfy the following relationship:

[0055] S1=L1

[0056] S1'=W-L1'

[0057] L1'>D'

[0058] S2=W+D+L2

[0059] S2'=2W-D'-L2'

[0060] (W-L2')>D'

[0061] In the formula: L1, L1', L2, L2', D, and D' are all positive numbers; S1 is the distance from the crease edge of the lid side of the i-th packaging box 600a in the conveying direction at the moment the first nozzle 61 starts blowing; S1' is the distance from the crease edge of the lid side of the i-th packaging box 600a in the conveying direction at the moment the first nozzle 61 stops blowing; S2 is the distance from the crease edge of the lid side of the i-th packaging box 600a in the conveying direction at the moment the second nozzle 62 starts blowing; S2' is the distance from the crease edge of the lid side of the i-th packaging box 600a in the conveying direction at the moment the second nozzle 62 stops blowing; L1 is the distance from the crease edge of the lid side of the i-th packaging box 600a at the initial position of the first nozzle 61 blowing on the lid side of the i-th packaging box 600a in the conveying direction; L1' is the distance from the crease edge of the lid side of the i-th packaging box 600a at the final position of the first nozzle 61 blowing on the lid side of the i-th packaging box 600a. L1 is the distance from the far edge of the lid side of the i+1th packaging box 600b in the conveying direction to the initial position of the lid side of the i+1th packaging box 600b sprayed by the second nozzle 62; L2' is the distance from the fold edge of the lid side of the i+1th packaging box 600b sprayed by the second nozzle 62 in the conveying direction to the final position of the lid side of the i+1th packaging box 600b sprayed by the second nozzle 62; W is the width of the lid side of either the i-th packaging box 600a or the i+1th packaging box 600b in the conveying direction; D is the interval distance in the conveying direction between the i-th packaging box 600a and the i+1th packaging box 600b at the instant when the first nozzle 61 and the second nozzle 62 start spraying simultaneously; D' is the overlap distance in the conveying direction between the i-th packaging box 600a and the i+1th packaging box 600b at the instant when the first nozzle 61 and the second nozzle 62 stop spraying simultaneously.

[0062] Similarly, when the blowing device 6 includes only the first nozzle 61, in order to ensure that the lids of the i-th packaging box 600a and the (i+1)-th packaging box 600b can overlap smoothly and without obstruction on the second conveyor 3, the position of the first nozzle 61 is selected to satisfy the following relationship:

[0063] S1 = L1;

[0064] S1'=W-L1'

[0065] D > 0;

[0066] L1'>D'

[0067] In the formula: L1, L1', D, and D' are all positive numbers; S1 is the distance from the crease edge of the lid side of the i-th packaging box 600a in the conveying direction at the instant the first nozzle 61 starts blowing; S1' is the distance from the crease edge of the lid side of the i-th packaging box 600a in the conveying direction at the instant the first nozzle 61 stops blowing; L1 is the distance from the crease edge of the lid side of the i-th packaging box 600a at the initial position of the first nozzle 61 blowing the lid side of the i-th packaging box 600a in the conveying direction; L1' is the distance from the crease edge of the lid side of the i-th packaging box 600a at the initial position of the first nozzle 61 blowing the lid side of the i-th packaging box 600a; L1' is the distance from the crease edge of the lid side of the i-th packaging box 600a at the initial position of the first nozzle 61 blowing the lid side of the i-th packaging box 600a. The dimension of the distance from the far edge of the lid side of box 600a to the end position of the lid side in the conveying direction; W is the width dimension of the lid side of either the i-th box 600a or the (i+1)-th box 600b in the conveying direction; D is the distance between the i-th box 600a and the (i+1)-th box 600b in the conveying direction at the instant the first nozzle 61 starts blowing; D' is the overlap distance between the i-th box 600a and the (i+1)-th box 600b in the conveying direction at the instant the first nozzle 61 stops blowing.

[0068] Similarly, when the blowing device 6 includes only the second nozzle 62, in order to ensure that the lid side panels of the i-th packaging box 600a and the (i+1)-th packaging box 600b can overlap smoothly and without obstruction on the second conveyor 3, the position of the second nozzle 62 is selected to satisfy the following relationship:

[0069] S2 = W + D + L2;

[0070] S2'=2W-D'-L2'

[0071] (W-L2')>D'

[0072] In the formula: L2, L2', D, and D' are all positive numbers; S2 is the distance in the conveying direction of the crease edge of the lid side of the i-th packaging box 600a at the instant the second nozzle 62 starts blowing; S2' is the distance in the conveying direction of the crease edge of the lid side of the i-th packaging box 600a at the instant the second nozzle 62 stops blowing; L2 is the distance in the conveying direction of the distance from the far edge of the lid side of the (i+1)-th packaging box 600b when the second nozzle 62 blows the lid side; L2' is the distance in the conveying direction of the distance in the conveying direction of the (i+1)-th packaging box 600b. The distance from the end position of the lid side of packaging box 600b to the crease edge of the lid side in the conveying direction; W is the width of the lid side of either the i-th packaging box 600a or the (i+1)-th packaging box 600b in the conveying direction; D is the interval distance between the i-th packaging box 600a and the (i+1)-th packaging box 600b in the conveying direction at the instant the second nozzle 62 starts blowing; D' is the overlap distance between the i-th packaging box 600a and the (i+1)-th packaging box 600b in the conveying direction at the instant the second nozzle 62 stops blowing.

[0073] In this embodiment, the first nozzle 61 includes an air inlet and one or more jet holes communicating with the air inlet, while the second nozzle 62 also includes an air inlet and one or more jet holes communicating with the air inlet. As an example, the first nozzle 61 includes multiple jet holes, which are evenly spaced along the height direction of the second conveyor 3; the second nozzle 62 also includes multiple jet holes, which are also evenly spaced along the height direction of the second conveyor 3. That is, the first nozzle 61 and the second nozzle 62 can use their evenly distributed jet holes to blow the lid side panels of the i-th packaging box 600a and the (i+1)-th packaging box 600b more safely and reliably, ensuring that the corresponding lid side panels are more likely to bend ideally at their respective crease edges. To further improve the blowing effect and ensure that the bending area of ​​the lid side panels does not deviate from their respective crease edges when bending, the radial dimensions of each jet hole in the first nozzle 61 are the same, and the radial dimensions of each jet hole in the second nozzle 62 are also the same.

[0074] In this embodiment, the blowing device 6 may further include a first solenoid valve connected to the first nozzle 61 and a second solenoid valve connected to the second nozzle 62. The control module mentioned below is connected to the first and second solenoid valves and is used to control their operating states, such as opening, closing, and degree of opening, thereby ensuring that the first nozzle 61 and / or the second nozzle 62 can blow air onto the lid side of the i-th packaging box 600a and / or the lid side of the i+1-th packaging box 600b when the lid side of the i-th packaging box 600a and / or the lid side of the i+1-th packaging box 600b are about to overlap. Preferably, the control module can control the operating states of the first and second solenoid valves based on the operating parameters fed back by the conveying device 2 and / or the second conveyor 3. In this way, the blowing device 6 can better cooperate with the conveying device 2 and / or the second conveyor 3, and ensure that the first nozzle 61 and / or the second nozzle 62 can blow on the lid side of the i-th packaging box 600a and / or the lid side of the i+1 packaging box 600b when the lid side of the i-th packaging box 600a and the i+1 packaging box 600b are about to overlap.

[0075] Regarding the specific implementation of control, the control of the aforementioned parts of the present invention can be achieved in various suitable ways. For example, the conveying system 100 may also include a control module electrically connected to the first conveyor 1, the conveying device 2, the second conveyor 3, the handling device 4, the carrying platform 5, and the blowing device 6. This control module is used to control the working state of the first conveyor 1, the conveying device 2, the second conveyor 3, the handling device 4, the carrying platform 5, and the blowing device 6, such as start-up timing, stop-up timing, and running speed. The control module can also serve as the control system of the flexible packaging equipment. Furthermore, parts such as the first conveyor 1, the conveying device 2, the second conveyor 3, the handling device 4, the carrying platform 5, and the blowing device 6 may also individually include control modules. Each control module can independently perform tasks and, when necessary, communicate and cooperate to complete one or more tasks. The aforementioned control module generally includes a processor (such as a PLC or CPU), a memory, and electronic components connected to the processor, which are well known to those skilled in the art and will not be described in detail here.

[0076] In summary, the conveying system 100 can meet the needs of flexible packaging equipment and has advantages such as low cost and small footprint.

[0077] In the foregoing description of this application, unless otherwise expressly specified and limited, the terms "fixed," "installed," "connected," or "linked" should be interpreted broadly. For example, the term "linked" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can refer to the internal communication of two components or the interaction between two components. Therefore, unless otherwise expressly limited in this application, those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0078] Based on the above description of this application, those skilled in the art will also understand that the terms used, such as "upper" and "lower," which indicate orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings of this application. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not imply that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as a limitation on the present invention.

[0079] Furthermore, the terms "first" or "second," etc., used in this application to refer to numbers or ordinal numbers are for descriptive purposes only and should not be construed as explicitly or implicitly indicating relative importance or specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, or more, unless otherwise explicitly specified.

[0080] While numerous embodiments of the invention have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and essence of the invention. It should be understood that various alternatives to the embodiments of the invention described herein may be employed in the practice of the invention. The appended claims are intended to define the scope of protection of the invention and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. A conveying system for flexible packaging equipment, characterized in that, Along the direction of movement of the packaging box, it sequentially includes a first conveyor, a conveying device, a second conveyor, a handling device, and a carrying platform. The first conveyor is configured to receive and convey the packaging boxes produced by the box-making machine of the flexible packaging equipment. The conveying device is configured to successively transfer the packaging boxes arriving at the output end of the first conveyor to the input end of the second conveyor. The second conveyor is configured to convey the packaging boxes and allow the box-packing machine of the flexible packaging equipment to complete the box-packing operation on the second conveyor. The handling device is configured to remove the packaging boxes from the conveyor and place them on the carrying platform. The carrying platform is configured to receive the packaging boxes and allow the box-sealing machine of the flexible packaging equipment to complete the box-sealing operation on the carrying platform. The conveying device includes: A multi-axis drive platform is arranged between the second conveyor and the carrying platform along the conveying direction of the second conveyor; and At least one pickup mechanism is provided on the multi-axis drive platform; The multi-axis drive platform is used to drive the picking mechanism to perform translational and lifting movements, so that the picking mechanism can both enter the hollow area of ​​the output end of the second conveyor and take out the packaging box from the second conveyor, and enter the hollow area of ​​the carrying platform and place the packaging box on the carrying platform. The support platform includes: a first support and a second support arranged at intervals and facing each other, wherein the first support and the second support sequentially include a first support part and a second support part disposed at their respective top ends; The first conveyor and the second conveyor are double-row belt conveyors or double-row chain conveyors.

2. The conveying system according to claim 1, characterized in that, The conveying device includes: A pushing mechanism, located on the side of the interval area between the first conveyor and the second conveyor, and including a conveying component; and A power mechanism, connected to the pushing mechanism, is used to periodically drive the pushing mechanism to force the transport component to complete the transport of the packaging box from the first conveyor to the second conveyor.

3. The conveying system according to claim 2, characterized in that, The conveying device further includes a slide rail component disposed in the interval area between the first conveyor and the second conveyor and used to prevent the packaging box from falling; the pushing mechanism includes a first driven wheel rotatably disposed on the side of the slide rail component, a first driving wheel rotatably disposed on the side of the slide rail component and driven by the power mechanism, and a first flexible member sleeved on the first driving wheel and the first driven wheel; the conveying member is a push block structure fixedly disposed on the first flexible member and used to push the packaging box; wherein the combination of the first driving wheel, the first driven wheel and the first flexible member is a chain sprocket assembly or a belt pulley assembly including a synchronous belt.

4. The conveying system according to claim 3, characterized in that: The chain or belt of the first conveyor is provided with a plurality of first blocking members arranged in a circumferential direction, and the chain or belt of the second conveyor is provided with a plurality of second blocking members arranged in a circumferential direction. The first conveyor, the second conveyor, and the slide rail component are all coplanar in terms of supporting and conveying the packaging box, and are collectively referred to as the conveying plane of the conveying device; The package that moves between the output end of the first conveyor and the input end of the second conveyor is referred to as the target object; The critical time when the pusher structure contacts the target object is later than or equal to the time when the first blocking member downstream of the target object and adjacent to it moves to the point of being about to be below the conveying plane, but earlier than or equal to the time when the first blocking member upstream of the target object and adjacent to it arrives directly above the sprocket or pulley at the output end of the first conveyor. The critical time at which the pusher structure pushes the target object away from the first conveyor is earlier than or equal to the time when the first blocking member, which is upstream of and adjacent to the target object, moves to a point where it is about to fall below the conveying plane. The pusher structure is used to push the target object into the second conveyor at a time later than or equal to the time when the second blocking member downstream of the target object and adjacent to it arrives directly above the sprocket or pulley at the input end of the second conveyor, but earlier than or equal to the time when the second blocking member upstream of the target object and adjacent to it moves to a position just above the conveying plane. The critical time at which the pusher structure detaches from the target object is later than or equal to the time when the second blocking member, which is upstream of and adjacent to the target object, arrives directly above the sprocket or pulley at the input end of the second conveyor.

5. The conveying system according to claim 3, characterized in that: The power mechanism further includes a first servo motor and a transmission component connected to the first servo motor and the pushing mechanism, wherein the first servo motor drives the pushing mechanism through the transmission component.

6. The conveying system according to claim 1, characterized in that, The picking mechanism includes a carrier component connected to the multi-axis drive platform and movable in the hollow region at the output end of the second conveyor, and at least one picking component disposed on the surface of the carrier component facing away from the multi-axis drive platform and picking up the packaging box by gripping, sucking or sticking.

7. The conveying system according to claim 1, characterized in that, The multi-axis drive platform includes: A translation assembly includes a base arranged along the conveying direction of the second conveyor and located below the second conveyor and the carrying platform; a slide slidably mounted on the base; and a first linear drive mechanism connected to the base and the slide and for driving the slide to reciprocate on the base along the conveying direction of the second conveyor; and The lifting assembly includes a support beam slidably mounted on the slide table, and a second linear drive mechanism connected to the slide table and the support beam for driving the support beam to move up and down on the slide table. The load-bearing component is vertically mounted on the top of the support beam.

8. The conveying system according to claim 7, characterized in that, The first linear drive mechanism includes a second driving wheel rotatably mounted on one end of the base, a second driven wheel rotatably mounted on the other end of the base, a second flexible member sleeved on the second driving wheel and the second driven wheel, and a second servo motor mounted on the base for driving the second driving wheel. The slide is fixed to the second flexible member, and the combination of the second driving wheel, the second driven wheel, and the second flexible member is a chain and sprocket assembly or a belt and pulley assembly including a synchronous belt. The second linear drive mechanism includes a third servo motor mounted on the slide, and a rotating component fixedly sleeved on the third servo motor. The device comprises a drive wheel on a shaft, a traction member connected at one end to the top of the support beam and at the other end to the bottom of the support beam and partially surrounding the drive wheel, a first reversing wheel rotatably mounted on the slide and reversing the traction member, and a second reversing wheel rotatably mounted on the slide and reversing the traction member. The drive wheel is further away from the support beam than the first and second reversing wheels and is positioned between the first and second reversing wheels in the height direction of the conveying device. The traction member, the first reversing wheel, the second reversing wheel, and the traction member are chain and sprocket assemblies or belt and pulley assemblies including a timing belt.

9. The conveying system according to any one of claims 1 to 5, characterized in that, The carrier platform includes: The first rotating plate is rotatably disposed on the inner side of the first bracket and has a first supporting bottom; The second rotating plate is rotatably disposed on the inner side of the second bracket and has a second support bottom; A first drive mechanism is mounted on the first support and is used to drive the first rotating plate to perform a retracting motion relative to the first support. The second drive mechanism is mounted on the second bracket and is used to drive the second rotating plate to retract or extend relative to the second bracket. When both the first and second rotating plates are in the unfolded state, the first and second support bottoms are joined together and filled into the gap between the first and second supporting parts, so that the first supporting part, the second supporting part, the first support bottom, and the first support bottom can jointly support the packaging box placed on the supporting platform.

10. The conveying system according to claim 9, characterized in that, The carrying platform further includes a first pivot for pivotally connecting the first rotating plate to the first support and a second pivot for pivotally connecting the second rotating plate to the second support. The first rotating plate also has a first positioning part, which is located on both sides of the first pivot, and the second rotating plate also has a second positioning part, which is located on both sides of the second pivot, and the second rotating plate also has a second positioning part, which is located on both sides of the second pivot, and the first rotating plate and the second rotating plate are both in the retracted state. When both the first rotating plate and the second rotating plate are in the retracted state, the first positioning part is erected on the side of the first carrying part away from the second carrying part, and the second positioning part is erected on the side of the second carrying part away from the first carrying part.

11. The conveying system according to claim 10, characterized in that, The first drive mechanism includes a first swing arm fixedly mounted on the first pivot, and a first linear actuator with one end hinged to the outside of the first bracket and the other end hinged to the end of the first swing arm away from the first pivot. The second drive mechanism includes a second swing arm fixedly mounted on the second pivot, and a second linear actuator with one end hinged to the outside of the second bracket and the other end hinged to the end of the second swing arm away from the second pivot.

12. The conveying system according to any one of claims 1 to 5, characterized in that, It also includes a blowing device that assists the conveying device in feeding the i-th and (i+1)-th packaging boxes into the second conveyor in an overlapping manner, wherein i is a positive integer, and the blowing device includes: A first nozzle, fixedly disposed above the input end of the second conveyor, is used to spray air onto the side panel of the lid of the i-th package when the conveying device sequentially feeds the i-th package and the (i+1)-th package onto the input end of the second conveyor; and / or The second nozzle is fixedly disposed above the input end of the second conveyor and is used to blow the side cover of the (i+1)th package when the conveying device sequentially feeds the i-th package and the (i+1)th package into the input end of the second conveyor.

13. The conveying system according to claim 12, characterized in that, The second nozzle is closer to the conveying device than the first nozzle. The first nozzle and the second nozzle are respectively used to spray the outer side of the lid side of the i-th packaging box and the inner side of the lid side of the (i+1)-th packaging box.

14. The conveying system according to claim 13, characterized in that: When the blowing device includes the first nozzle and the second nozzle, the positions of the first nozzle and the second nozzle are selected to satisfy the following relationship: S1=L1; S1'=W-L1'; L1' > D'; S2 = W + D + L2; S2'=2W-D'-L2'; (W-L2') > D'; In the formula: L1, L1', L2, L2', D, and D' are all positive numbers; S1 is the distance between the first nozzle and the crease edge of the lid side of the i-th packaging box in the conveying direction of the second conveyor at the moment of starting to spray; S1' is the distance from the crease edge of the lid side of the i-th package box in the conveying direction at the instant the first nozzle stops blowing; S2 is the distance between the second nozzle and the crease edge of the lid side of the i-th packaging box in the conveying direction at the instant the second nozzle starts blowing; S2' is the distance from the crease edge of the lid side of the i-th package box in the conveying direction at the instant the second nozzle stops blowing; L1 is the distance from the crease edge of the lid of the i-th package to the initial position of the first nozzle blowing the lid of the i-th package in the conveying direction; L1' is the distance from the far edge of the lid side page of the i-th package to the end position of the first nozzle blowing the lid side page in the conveying direction; L2 is the distance from the far edge of the lid side page of the (i+1)th package to the initial position of the second nozzle blowing the lid side page in the conveying direction; L2' is the distance from the crease edge of the lid side page of the (i+1)th package to the end position of the second nozzle blowing the lid side page in the conveying direction; W is the width dimension of the side panel of the lid of either the i-th box or the (i+1)-th box in the conveying direction; D is the distance between the i-th packaging box and the (i+1)-th packaging box in the conveying direction at the instant when the first nozzle and the second nozzle start blowing simultaneously; D' is the overlap distance between the i-th packaging box and the (i+1)-th packaging box in the conveying direction at the instant when the first nozzle and the second nozzle simultaneously stop blowing; When the blowing device includes only the first nozzle, the position of the first nozzle is selected to satisfy the following relationship: S1=L1; S1'=W-L1'; D＞0； L1' > D'; In the formula: L1, L1', D, and D' are all positive numbers; S1 is the distance between the first nozzle and the crease edge of the lid side of the i-th packaging box in the conveying direction of the second conveyor at the moment of starting to spray; S1' is the distance from the crease edge of the lid side of the i-th package box in the conveying direction at the instant the first nozzle stops blowing; L1 is the distance from the crease edge of the lid of the i-th package to the initial position of the first nozzle blowing the lid of the i-th package in the conveying direction; L1' is the distance from the far edge of the lid side page of the i-th package to the end position of the first nozzle blowing the lid side page in the conveying direction; W is the width dimension of the side panel of the lid of either the i-th box or the (i+1)-th box in the conveying direction; D is the distance between the i-th packaging box and the (i+1)-th packaging box in the conveying direction at the instant the first nozzle starts blowing; D' is the overlap distance between the i-th packaging box and the (i+1)-th packaging box in the conveying direction at the instant the first nozzle stops blowing; When the blowing device includes only the second nozzle, the position of the second nozzle is selected to satisfy the following relationship: S2 = W + D + L2; S2'=2W-D'-L2'; (W-L2') > D'; In the formula: L2, L2', D, and D' are all positive numbers; S2 is the distance between the second nozzle and the crease edge of the lid side of the i-th packaging box in the conveying direction of the second conveyor at the moment of start-up blowing; S2' is the distance from the crease edge of the lid side of the i-th package box in the conveying direction at the instant the second nozzle stops blowing; L2 is the distance from the far edge of the lid side page of the (i+1)th package to the initial position of the second nozzle blowing the lid side page in the conveying direction; L2' is the distance from the crease edge of the lid side page of the (i+1)th package to the end position of the second nozzle blowing the lid side page in the conveying direction; W is the width dimension of the side panel of the lid of either the i-th box or the (i+1)-th box in the conveying direction; D is the distance between the i-th packaging box and the (i+1)-th packaging box in the conveying direction at the instant the second nozzle starts blowing; D' is the overlap distance between the i-th packaging box and the (i+1)-th packaging box in the conveying direction at the instant the second nozzle stops blowing.

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