Conveying system for heavy carton production

Abstract

The invention discloses a conveying system for heavy carton production, and belongs to the technical field of heavy carton production, the conveying system comprises a conveying belt and an output belt, an arc-shaped conveying unit is arranged between the conveying belt and the output belt, and the conveying system further comprises a plurality of limiting assemblies which are linearly and symmetrically distributed on the two sides of the tops of the conveying belt, the arc-shaped conveying unit and the output belt; the device is used for auxiliary conveying and limiting of heavy cartons. According to the conveying device, an external driving unit drives a fixing shaft, a driving belt wheel, a synchronous belt, a transmission belt wheel, a tensioning wheel, a connecting belt wheel, a driven belt wheel and a guide wheel to rotate, and sliding friction resistance between the peripheral side of a heavy carton and a limiting frame, a limiting rod and a conical roller in the arc-shaped conveying unit can be reduced or even eliminated; and the moving speed of the peripheral side of the heavy carton is actively accelerated, the speed difference between the inner side and the outer side of the heavy carton in the turning conveying process is remarkably increased and actively controlled, the heavy carton is smoother in the whole turning process, and then the conveying applicability of the system under the heavy load is improved.

Description

Technical Field

[0001] This invention belongs to the field of heavy-duty cardboard box production technology, and particularly relates to a conveying system for heavy-duty cardboard box production. Background Technology

[0002] Heavy-duty cartons are packaging containers made of high-strength corrugated cardboard or composite paper materials. They have high load-bearing capacity and compressive strength and are usually used for transporting and storing heavy items or items that require special protection. In modern production processes, heavy-duty cartons need to be transported using conveyor systems so that they can be moved flexibly between various processes. In order to improve the layout of the factory, curved conveyor systems are sometimes used.

[0003] During the turning transport of heavy cartons via an arc-shaped conveyor belt, the large weight of the cartons and the high coefficient of sliding friction between their bottom surface and the tapered rollers on the arc-shaped conveyor belt may cause changes in the conveying speed on the inner and outer sides during the turning process. This can lead to a shift in the conveying angle of the heavy cartons, which may affect the smooth connection of the subsequent straight sections. In severe cases, it may even affect the edges and corners of the heavy cartons. Therefore, improvements are needed. Summary of the Invention

[0004] The purpose of this invention is to address the problem that, in the process of transporting heavy cartons by curved conveyor belts with turns, the high sliding friction between the conveyor belt's own weight and the tapered rollers on the curved conveyor belt may cause changes in the conveying speed on the inner and outer sides, resulting in a deviation in the conveying angle of the heavy cartons. Therefore, this invention proposes a conveying system for heavy carton production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A conveyor system for heavy-duty carton production includes a conveyor belt and an output belt, wherein an arc-shaped conveying unit is disposed between the conveyor belt and the output belt, and further includes: Multiple limiting components are linearly and symmetrically distributed on both sides of the top of the conveyor belt, the arc-shaped conveyor unit, and the output belt to assist in the conveying and limiting of heavy cartons. Four limit rods are symmetrically installed in pairs on both sides of the top of the conveyor belt, the arc conveyor unit, and the output belt, and two limit rods are symmetrically distributed on both sides of the limit assembly for series limiting between multiple limit assemblies; The parallel speed control component is located on one side of the top of the arc-shaped conveyor unit and is set on the outer periphery of the relative arc-shaped conveyor unit. The parallel speed control component is located between two limit rods and is used to adjust the internal and external difference of heavy cartons during the conveying process of the arc-shaped conveyor unit. It is suitable for the installation requirements of heavy cartons of different sizes. Two limit speed regulating components are symmetrically distributed on both sides of the arc-shaped conveying unit, and are used to adjust the rotation speed of the parallel speed regulating components. The auxiliary adjustment component, located at the end of the arc-shaped conveyor unit furthest from the conveyor belt, is used to buffer the output inertial force of heavy cartons and ensure their guiding properties during subsequent conveying.

[0006] As a further description of the above technical solution: The limiting component includes: The support base is installed on the outside of the conveyor belt, the arc conveyor unit, and the output belt by screws, and the top of the support base is on the same horizontal plane as the top of the conveyor belt, the arc conveyor unit, and the output belt; A rectangular base is installed on one side of the top of the support base, and a threaded hole is opened in the center of the rectangular base, with circular through holes on both sides of the threaded hole; The limiting frame is located above the conveyor belt, the arc conveyor unit and the output belt, and the limiting frame has a first through hole on both sides for the limiting rod to pass through. The screw is connected to the threaded hole in the rectangular seat, and one end of the screw is connected to the limiting frame to adjust the position of the limiting frame and the limiting rod. The handle is fixed to the other end of the screw, and the handle is located on the side away from the conveyor belt, the arc conveyor unit and the output belt.

[0007] As a further description of the above technical solution: The parallel speed control component includes: Multiple arc-shaped seats are linearly distributed around the outer periphery of the arc-shaped conveying unit and symmetrically distributed around the center of the arc-shaped conveying unit. Each arc-shaped seat has a cavity inside. Multiple sets of guide wheels are located inside multiple arc-shaped seats. Each set of guide wheels has multiple guide wheels, which are distributed in a linear array inside the arc-shaped seats. Multiple sets of connecting sleeves are installed on one side of multiple arc-shaped seats. Each set of connecting sleeves has four sleeves. One side of each of the four connecting sleeves is fixedly connected to the outer wall of the arc-shaped seat. The connecting sleeves are fitted on the outer periphery of the limiting rod, and elastic elements are provided on the inner periphery of the connecting sleeves to install the arc-shaped seats equidistantly on the limiting rod. Multiple sets of hinge units are set on one side of multiple arc-shaped seats. Each set of hinge units consists of four units, which are symmetrically installed on both sides of the arc-shaped seats. They are used to connect multiple arc-shaped seats to each other or to the arc-shaped seats to the limiting frame. The drive unit, located inside the arc-shaped seat and on top of the guide wheels, is used to rotate multiple sets of guide wheels synchronously to actively adjust the heavy cartons conveyed to the arc-shaped conveyor unit.

[0008] As a further description of the above technical solution: The conveying hinge unit includes: Two telescopic hinge seats are symmetrically located on one side of the arc-shaped seat, and one side of the telescopic hinge seats is fixedly connected to the outer wall of the arc-shaped seat or the outer wall of the limiting frame located on one side of the conveyor belt. Four first hinge seats are symmetrically located on the side of the arc-shaped seat away from the telescopic hinge seat, and two of the first hinge seats are symmetrically arranged with the telescopic hinge seat as the center. The telescopic hinge seat and the first hinge seats are hinged and fixed by a pin. The side of the first hinge seat away from the telescopic hinge seat is fixedly connected to the outer wall of the arc-shaped seat or the limiting frame located on the side of the output belt.

[0009] As a further description of the above technical solution: The driving unit includes: Multiple sets of connecting shafts are located inside multiple arc-shaped seats, and each set of connecting shafts is composed of multiple connecting shafts. The outer periphery of each connecting shaft is fixedly connected to the outer wall of the guide wheel, and is used to drive the guide wheel to rotate so as to actively transport heavy cartons. Multiple sets of transmission pulleys are located inside multiple arc-shaped seats, and each set of transmission pulleys is composed of multiple transmission pulleys, which are fixedly connected to the outer periphery of the connecting shaft; Multiple sets of connecting pulley units are located inside multiple arc-shaped seats, and each set of connecting pulley units consists of two connecting pulleys and a round shaft, with the connecting pulleys positioned on the side opposite to the output belt; Multiple tensioning pulleys are located inside multiple arc-shaped seats and are positioned on the side opposite to the connecting pulleys, and an external elastic tensioning unit is provided on one side of the tensioning pulleys; The drive pulley is located inside the arc-shaped seat relative to the conveyor belt; The fixed shaft is installed inside the drive pulley and is rotatably connected to the arc-shaped seat on the side opposite to the conveyor belt. The bottom end of the fixed shaft is connected to an external drive unit through a drive shaft and a coupling. The driven pulley is located inside the arc-shaped seat opposite the output belt, and it is symmetrically arranged with the driving pulley; The synchronous belt is wound sequentially around the outer periphery of the drive pulley, connecting pulley, tension pulley, driving pulley, and driven pulley, and the outer periphery of the synchronous belt is sealed.

[0010] As a further description of the above technical solution: The speed control component includes: Two connecting sleeves are symmetrically arranged inside the rectangular base, and the connecting sleeves pass through the first through hole and are fixedly connected to the inner wall of the rectangular base. The connecting sleeves have a second through hole on the side opposite to the conveyor belt, the output belt and the arc-shaped conveying unit. Two sliding rods are slidably connected inside two connecting sleeves, and one end of the sliding rod passes through the second through hole and extends into the inside of the connecting sleeve and is fixedly connected to a sliding seat. The sliding rod is hollow, and two third through holes are symmetrically opened on one side of the sliding rod. The end of the sliding rod away from the connecting sleeve is fixedly connected to the outer wall of the limiting frame. Two main liquid bladders are located inside two connecting sleeves and the cross-sectional shape of the main liquid bladders is set as annular. The main liquid bladders are sleeved on the outer periphery of the sliding rod, and the two sides of the main liquid bladders are fixedly connected to the sliding seat and the inner wall of the connecting sleeve, respectively. Two infusion tubes are located inside two sliding rods, with one end of the infusion tube passing through the outside of the third through hole and connected to the main infusion bladder, and the other end of the infusion tube passing through the third through hole and extending into the arc-shaped seat. The infusion tubes are configured as flexible tubes. A connector is installed inside the arc-shaped seat, and the connector is located on the side opposite to the input end or the output belt. A fourth through hole is opened on the side of the connector away from the inner wall of the input end or the inner wall of the output belt. The adjustment unit, installed inside the connector, is used to move the adjustment unit via the main liquid bladder, thereby adjusting the adjustment force of the adjustment unit.

[0011] As a further description of the above technical solution: The adjustment unit includes: The auxiliary fluid bladder is fixed inside one side of the connector, and one side of the auxiliary fluid bladder is connected to the infusion tube; The sliding seat is slidably connected inside the connecting seat, and one side of the sliding seat is fixedly connected to the outer wall of the auxiliary fluid bladder; The wear-resistant block is slidably connected inside the connecting seat, and one side of the wear-resistant block is fixedly connected to the outer wall of the sliding seat. The side of the wear-resistant block away from the sliding seat passes through the fourth through hole and extends to the outside of the connecting seat. The friction wheel is fixedly connected to the outer circumference of the fixed shaft. The rotational resistance of the fixed shaft is adjusted by adjusting the contact force between the wear-resistant block and the friction wheel. Two first springs are symmetrically distributed on both sides of the wear-resistant block, and the two sides of the first springs are fixedly connected to one side of the sliding seat and the inner wall of the connecting seat, respectively.

[0012] As a further description of the above technical solution: The auxiliary adjustment component includes: Two fixing seats are both set inside the limiting frame on the side opposite to the output belt. The fixing seats are set on the side opposite to the center of the arc-shaped conveying unit and have rectangular through holes. The two fixing seats are symmetrically installed on both sides inside the limiting frame. The limiting head is slidably connected inside the rectangular through hole opened inside the fixed base. One end of the limiting head is set to an arc shape, and the limiting head on the arc side passes through the rectangular through hole and extends to the outside of the fixed base. The piston is slidably sealed inside the fixed seat, and one side of the piston is fixedly connected to the outer wall of the limiting head; Two second springs are symmetrically arranged on both sides of the limiting head, and the two sides of the second springs are fixedly connected to one side of the piston and the inner wall of the fixed seat, respectively.

[0013] As a further description of the above technical solution: The auxiliary adjustment component also includes: Two conveying pipes, consisting of a conveying branch pipe and a conveying main pipe, are provided. One end of the conveying branch pipe is connected to the fixed seat, and the other end of the conveying branch pipe is connected to the conveying main pipe through a pipe joint. The other end of the conveying main pipe passes through the sliding rod and is connected to an air bladder. The two sides of the air bladder are fixedly connected to one side of the sliding seat and the inner wall of the connecting pipe sleeve, respectively.

[0014] As a further description of the above technical solution: Three drive sources are respectively mounted on the outside of the conveyor belt, output belt, and arc conveyor unit via support frames, and are used to provide power to the conveyor rollers inside the conveyor belt, output belt, and arc conveyor unit.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In this invention, by setting up a parallel speed regulation component, the external drive unit drives the fixed shaft, drive pulley, synchronous belt, transmission pulley, tension pulley, connecting pulley, driven pulley and guide pulley to rotate, which reduces or even eliminates the sliding friction resistance between the outer periphery of the heavy carton and the limiting frame, limiting rod and the conical roller inside the arc conveying unit, and actively accelerates the moving speed of the outer periphery of the heavy carton, significantly enhances and actively controls the speed difference between the inner and outer sides of the heavy carton during the turning conveying process, making the heavy carton smoother in the entire turning process, reducing its blocking conveying time, and thus improving the system's conveying applicability under heavy loads.

[0016] 2. In this invention, the limiting speed regulating component allows the limiting frame to adjust the squeezing force of the sliding rod and sliding seat on the main liquid bladder. Combined with the action of the first spring, the moving distance of the sliding seat and the wear-resistant block is adjusted, thereby adjusting the squeezing force of the wear-resistant block relative to the friction wheel. As the limiting frame moves towards the center of the conveyor belt, output belt, and arc conveying unit, the driving torque transmitted to the guide wheel is increased or decreased, dynamically reducing or increasing the actual internal and external speed difference applied to the heavy-duty carton. This allows the system to automatically adjust the internal and external conveying speed difference of the turning section according to the size of the heavy-duty carton, thereby significantly improving the system's ability to convey heavy-duty cartons of different widths.

[0017] 3. In this invention, by setting an auxiliary adjustment component, when the arc-shaped conveying unit is about to complete the turning operation of the heavy carton, the second spring will drive the piston and the limiting head to provide a small auxiliary buffer for the carton to be conveyed to the output belt, eliminating the residual rotational angular momentum of the heavy carton, reducing the rotational inertia accumulated by the heavy carton due to the internal and external speed difference, and the frictional resistance of the surface formed by the second spring and the limiting head forms a reverse torque to assist the heavy carton to return to the correct position, thereby improving the system's ability to smoothly connect the heavy carton to the straight section of the conveying line. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 In this invention Figure 1 A magnified schematic diagram of the structure at point A; Figure 3 This is a schematic diagram of the overall three-dimensional structure of the parallel speed regulation component in this invention; Figure 4 In this invention Figure 3 A magnified schematic diagram of the structure at point B; Figure 5 This is a partial three-dimensional structural diagram of the limiting component and the parallel speed regulating component in this invention; Figure 6 In this invention Figure 5 A magnified schematic diagram of the structure at point C; Figure 7 This is a three-dimensional structural diagram of the limiting component and parallel speed regulating component in this invention from another perspective. Figure 8 This is a partial three-dimensional structural diagram of the speed control component in this invention; Figure 9 In this invention Figure 8 A magnified schematic diagram of the structure at point D; Figure 10 This is a schematic diagram of the limit speed regulating component and the auxiliary adjustment component in this invention.

[0019] Legend: 1. Conveyor belt; 2. Output belt; 3. Arc-shaped conveyor unit; 4. Limiting assembly; 401. Support base; 402. Rectangular base; 403. Screw; 404. Rotary handle; 405. Limiting frame; 5. Limiting rod; 6. Parallel speed regulating assembly; 601. Arc-shaped base; 602. Cavity; 603. Guide wheel; 604. Connecting sleeve; 605. First hinge base; 606. Telescopic hinge base; 607. Connecting shaft; 608. Transmission pulley; 609. Tensioner; 610. 611 Fixed shaft; 7. Drive pulley; 8. Limiting and speed regulating assembly; 701 Connecting sleeve; 702 Sliding rod; 703 Sliding seat; 704 Main liquid bladder; 705 Infusion tube; 706 Connecting seat; 707 Auxiliary liquid bladder; 708 Sliding seat; 709 Wear-resistant block; 710 First spring; 711 Friction wheel; 8. Auxiliary adjusting assembly; 801 Fixed seat; 802 Limiting head; 803 Second spring; 804 Piston; 805 Delivery pipe. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-10 The present invention provides a technical solution: a conveying system for heavy-duty carton production, comprising a conveyor belt 1 and an output belt 2, wherein an arc-shaped conveying unit 3 is disposed between the conveyor belt 1 and the output belt 2, characterized in that it further comprises: Multiple limiting components 4 are linearly and symmetrically distributed on both sides of the top of the conveyor belt 1, the arc-shaped conveyor unit 3 and the output belt 2, for auxiliary conveying and limiting of heavy cartons; Four limiting rods 5 are symmetrically installed in pairs on both sides of the top of the conveyor belt 1, the arc conveyor unit 3 and the output belt 2, and two limiting rods 5 are symmetrically distributed on both sides of the limiting assembly 4, which are used to limit the series of multiple limiting assemblies 4. The parallel speed control component 6 is located on one side of the top of the arc-shaped conveying unit 3 and is set on the outer periphery of the arc-shaped conveying unit 3. The parallel speed control component 6 is located between the two limit rods 5 and is used to adjust the difference between the inside and outside of the heavy carton during the conveying process of the arc-shaped conveying unit 3. It is suitable for the installation requirements of heavy cartons of different sizes. Two limit speed regulating components 7 are symmetrically distributed on both sides of the arc-shaped conveying unit 3, and are used to regulate the rotation speed of the parallel speed regulating component 6. The auxiliary adjustment component 8 is located at the end of the arc-shaped conveyor unit 3 away from the conveyor belt 1. It is used to buffer the output inertial force of the heavy carton and ensure its guiding performance in subsequent conveying. Limiting component 4 includes: The support base 401 is installed on the outside of the conveyor belt 1, the arc conveyor unit 3 and the output belt 2 by screws, and the top of the support base 401 is on the same horizontal plane as the top of the conveyor belt 1, the arc conveyor unit 3 and the output belt 2. A rectangular base 402 is installed on one side of the top of the support base 401, and a threaded hole is provided in the center of the rectangular base 402, and a circular through hole is provided on both sides of the threaded hole. The limiting frame 405 is located above the conveyor belt 1, the arc conveyor unit 3 and the output belt 2, and the limiting frame 405 has a first through hole on both sides for the limiting rod 5 to pass through. The screw 403 is connected to the threaded hole in the rectangular seat 402, and one end of the screw 403 is connected to the limiting frame 405 for adjusting the position of the limiting frame 405 and the limiting rod 5. The handle 404 is fixed to the other end of the screw 403, and the handle 404 is located on the side away from the conveyor belt 1, the arc conveyor unit 3 and the output belt 2; Parallel speed control component 6 includes: Multiple arc-shaped seats 601 are linearly distributed on the outer periphery of the arc-shaped conveying unit 3 and symmetrically distributed with respect to the center position of the arc-shaped conveying unit 3. A cavity 602 is opened inside the arc-shaped seat 601. Multiple sets of guide wheels 603 are located inside multiple arc-shaped seats 601. Each set of guide wheels 603 has multiple guide wheels, and the multiple guide wheels 603 are distributed in a linear array inside the arc-shaped seat 601. Multiple sets of connecting sleeves 604 are installed on one side of multiple arc-shaped seats 601. Each set of connecting sleeves 604 has four sleeves. One side of each of the four connecting sleeves 604 is fixedly connected to the outer wall of the arc-shaped seat 601. The connecting sleeves 604 are sleeved on the outer periphery of the limiting rod 5, and the inner periphery of the connecting sleeves 604 is provided with elastic elements for installing the arc-shaped seats 601 equidistantly on the limiting rod 5. Multiple sets of hinge units are set on one side of multiple arc-shaped seats 601, with each set of hinge units having four units and symmetrically installed on both sides of the arc-shaped seats 601, for connecting multiple arc-shaped seats 601 to each other or to the arc-shaped seats 601 and the limiting frame 405. The drive unit is located inside the arc-shaped seat 601 and on top of the guide wheel 603. It is used to rotate multiple sets of guide wheels 603 synchronously to actively adjust the heavy cartons conveyed to the arc-shaped conveyor unit 3. The conveyor articulation unit includes: Two telescopic hinge seats 606 are symmetrically located on one side of the arc-shaped seat 601, and one side of the telescopic hinge seat 606 is fixedly connected to the outer wall of the arc-shaped seat 601 or the outer wall of the limiting frame 405 located on one side of the conveyor belt 1. Four first hinge seats 605 are symmetrically located on the side of the arc-shaped seat 601 away from the telescopic hinge seat 606, and two of the first hinge seats 605 are symmetrically arranged with the telescopic hinge seat 606 as the center. The telescopic hinge seat 606 and the first hinge seats 605 are hinged and fixed by a pin. The side of the first hinge seat 605 away from the telescopic hinge seat 606 is fixedly connected to the outer wall of the arc-shaped seat 601 or the limiting frame 405 located on the side of the output belt 2. The drive unit includes: Multiple sets of connecting shafts 607 are located inside multiple arc-shaped seats 601, and each set of connecting shafts 607 is composed of multiple connecting shafts 607. The outer periphery of the connecting shaft 607 is fixedly connected to the outer wall of the guide wheel 603, and is used to drive the guide wheel 603 to rotate so as to actively transport heavy cartons. Multiple sets of transmission pulleys 608 are located inside multiple arc-shaped seats 601, and each set of transmission pulleys 608 is composed of multiple transmission pulleys 608. The transmission pulleys 608 are fixedly connected to the outer periphery of the connecting shaft 607. Multiple sets of connecting pulley units are located inside multiple arc-shaped seats 601, and each set of connecting pulley units consists of two connecting pulleys and a round shaft. The connecting pulleys are arranged on the side opposite to the output belt 2. Multiple tensioning pulleys 609 are located inside multiple arc-shaped seats 601 and are arranged on the side opposite to the connecting pulley, and an external elastic tensioning unit is provided on one side of the tensioning pulley 609; The drive pulley 611 is located inside the arc-shaped seat 601 relative to the conveyor belt 1; The fixed shaft 610 is installed inside the drive pulley 611, and the fixed shaft 610 is rotatably connected inside the arc-shaped seat 601 on the side opposite to the conveyor belt 1. The bottom end of the fixed shaft 610 is connected to an external drive unit through a drive shaft and a coupling. The driven pulley is located inside the arc-shaped seat 601 relative to the output belt 2, and is symmetrically arranged with the driving pulley 611; The synchronous belt is wound sequentially around the outer periphery of the drive pulley 608, the connecting pulley, the tension pulley 609, the driving pulley 611, and the driven pulley, and the outer periphery of the drive pulley 608, the connecting pulley, the tension pulley 609, the driving pulley 611, and the driven pulley is set to be sealed.

[0022] Detailed Implementation: First, assemble the conveyor belt 1, output belt 2, and arc-shaped conveyor unit 3 into a single unit. Then, place the assembled conveyor belt 1, output belt 2, and arc-shaped conveyor unit 3 in a suitable position. Next, install multiple limiting components 4 to suitable positions on the top outer side of the conveyor belt 1, output belt 2, and arc-shaped conveyor unit 3 using screws. The operator then manually operates multiple handles 404 sequentially to drive multiple screws 403 to rotate, causing the screws 403 to advance inside the rectangular seat 402. The distance between the rectangular seats 402 and the limiting rods 5 is adjusted to appropriately adjust the limiting and guiding distance of the limiting rods 5 for the heavy-duty cardboard boxes. When the heavy-duty cardboard box gradually enters the arc-shaped conveyor unit 3 via the conveyor belt 1, the guide wheels 603 on the arc-shaped seat 601 will... Contacting the side of the heavy-duty carton, the external drive unit drives the fixed shaft 610 and the drive pulley 611 to rotate. During the rotation of the drive pulley 611, it simultaneously drives the transmission pulley 608, tension pulley 609, connecting pulley and driven pulley to rotate through the synchronous belt. This causes the guide wheel 603 to apply an active driving force to the heavy-duty carton, which significantly reduces or even eliminates the sliding friction resistance between the outer periphery of the heavy-duty carton and the limiting frame 405, limiting rod 5 and the conical roller inside the arc conveying unit 3. It also actively accelerates the moving speed of the outer periphery of the heavy-duty carton, significantly enhances and actively controls the speed difference between the inner and outer sides of the heavy-duty carton during the turning conveying process, making the heavy-duty carton smoother throughout the turning process, reducing its obstruction conveying time, and thus improving the system's conveying applicability under heavy loads.

[0023] Limit speed control component 7 includes: Two connecting sleeves 701 are symmetrically arranged inside the rectangular base 402, and the connecting sleeves 701 pass through the first through hole and are fixedly connected to the inner wall of the rectangular base 402. The connecting sleeves 701 have a second through hole on the side opposite to the conveyor belt 1, the output belt 2 and the arc-shaped conveyor unit 3. Two sliding rods 702 are slidably connected inside two connecting sleeves 701. One end of the sliding rod 702 passes through the second through hole and extends into the connecting sleeve 701 and is fixedly connected to a sliding seat 703. The sliding rod 702 is hollow and has two third through holes symmetrically opened on one side. The end of the sliding rod 702 away from the connecting sleeve 701 is fixedly connected to the outer wall of the limiting frame 405. Two main liquid bladders 704 are located inside two connecting sleeves 701 and the cross-sectional shape of the main liquid bladders 704 is set as annular. The main liquid bladders 704 are sleeved on the outer periphery of the sliding rod 702, and the two sides of the main liquid bladders 704 are fixedly connected to the sliding seat 703 and the inner wall of the connecting sleeve 701, respectively. Two infusion tubes 705 are located inside the two sliding rods 702. One end of the infusion tube 705 passes through the outside of the third through hole and is connected to the main liquid bladder 704. The other end of the infusion tube 705 passes through the third through hole and extends into the arc-shaped seat 601. The infusion tube 705 is configured as a flexible tube. The connector 706 is installed inside the arc-shaped seat 601, and the connector 706 is located on the side opposite to the input end 1 or the output band 2. A fourth through hole is opened on the side of the connector 706 away from the inner wall of the input end 1 or the inner wall of the output band 2. An adjustment unit, installed inside the connector 706, is used to move the adjustment unit via the main liquid bladder 704 to adjust the adjustment force of the adjustment unit; The adjustment unit includes: The auxiliary fluid bladder 707 is fixed inside one side of the connector 706, and one side of the auxiliary fluid bladder 707 is connected to the infusion tube 705. The sliding seat 708 is slidably connected inside the connecting seat 706, and one side of the sliding seat 708 is fixedly connected to the outer wall of the auxiliary liquid bladder 707. The wear-resistant block 709 is slidably connected inside the connecting seat 706, and one side of the wear-resistant block 709 is fixedly connected to the outer wall of the sliding seat 708. The side of the wear-resistant block 709 away from the sliding seat 708 passes through the fourth through hole and extends to the outside of the connecting seat 706. The friction wheel 711 is fixedly connected to the outer periphery of the fixed shaft 610. The rotational resistance of the fixed shaft 610 is adjusted by adjusting the contact force between the wear-resistant block 709 and the friction wheel 711. Two first springs 710 are symmetrically distributed on both sides of the wear-resistant block 709, and the two sides of the first springs 710 are fixedly connected to one side of the sliding seat 703 and the inner wall of the connecting seat 706, respectively.

[0024] Detailed Implementation: During the adjustment of the limiting component 4, the travel distance of the sliding rod 702 is adjusted by the position of the limiting frame 405. As the sliding rod 702 moves, it drives the sliding seat 703 to adjust the squeezing force of the main liquid bladder 704. With varying squeezing forces of the main liquid bladder 704, and in conjunction with the action of the first spring 710, the moving distance of the sliding seat 708 and the wear-resistant block 709 is adjusted. This adjusts the squeezing force of the wear-resistant block 709 relative to the friction wheel 711, causing the limiting frame 405 to move towards the conveyor belt. 1. During the center movement of the output belt 2 and the arc-shaped conveyor unit 3, the driving torque transmitted to the guide wheel 603 is increased, which helps to reduce the rotation effect on the guide wheel 603 and dynamically reduces the actual inside and outside speed difference applied to the heavy carton. Conversely, reducing the driving torque transmitted to the guide wheel 603 and increasing the rotation effect on the guide wheel 603 dynamically increases the actual inside and outside speed difference applied to the heavy carton. This allows the system to automatically adjust the inside and outside conveying speed difference of the turning section according to the size of the heavy carton, thereby significantly improving the system's ability to convey heavy cartons of different widths.

[0025] The auxiliary adjustment component 8 includes: Two fixed seats 801 are both set inside the limiting frame 405 on the side opposite to the output belt 2. The fixed seats 801 are set on the side opposite to the center of the arc-shaped conveying unit 3 and have rectangular through holes. The two fixed seats 801 are symmetrically installed on both sides inside the limiting frame 405. The limiting head 802 is slidably connected inside the rectangular through hole opened inside the fixed base 801. One end of the limiting head 802 is set to be arc-shaped. The limiting head 802 on the arc side passes through the rectangular through hole and extends to the outside of the fixed base 801. Piston 804 is slidably sealed inside fixed seat 801, and one side of piston 804 is fixedly connected to the outer wall of limit head 802. Two second springs 803 are symmetrically arranged on both sides of the limiting head 802, and the two sides of the second springs 803 are respectively fixedly connected to one side of the piston 804 and the inner wall of the fixed seat 801. Two conveying pipes 805 are composed of a conveying branch pipe and a conveying main pipe. One end of the conveying branch pipe is connected to the fixed seat 801, and the other end of the conveying branch pipe is connected to the conveying main pipe through a pipe joint. The other end of the conveying main pipe passes through the sliding rod 702 and is connected to an air bladder. The two sides of the air bladder are fixedly connected to one side of the sliding seat 703 and the inner wall of the connecting sleeve 701, respectively. Three drive sources are respectively installed on the outside of conveyor belt 1, output belt 2 and arc conveying unit 3 via support frames, and are used to provide power to the conveying rollers inside conveyor belt 1, output belt 2 and arc conveying unit 3.

[0026] Detailed implementation: When the arc-shaped conveying unit 3 is about to complete the turning operation of the heavy carton, the second spring 803 will drive the piston 804 and the limiting head 802 to provide slight auxiliary buffering for the carton to be conveyed to the output belt 2, eliminating the residual rotational angular momentum of the heavy carton, reducing the rotational inertia accumulated by the heavy carton due to the internal and external speed difference, and the frictional resistance of the surface formed by the second spring 803 and the limiting head 802 forms a reverse torque to assist the heavy carton to return to the correct position, improving the system's ability to smoothly connect the heavy carton to the straight section of the conveyor. The material of the limiting rod 5 can be selected according to actual needs, and the size of the guide wheel 603 and the distance of its extension from the arc-shaped seat 601 can be set according to actual needs, and the linear speed of the guide wheel 603 is slightly higher than or the same as the linear speed of the conical roller.

[0027] Working principle: In use, first assemble the conveyor belt 1, output belt 2 and arc-shaped conveyor unit 3 into one unit. Then place the assembled conveyor belt 1, output belt 2 and arc-shaped conveyor unit 3 in a suitable position. After that, install multiple limiting components 4 to the appropriate positions on the top side of the conveyor belt 1, output belt 2 and arc-shaped conveyor unit 3 with screws. The operator then manually operates multiple handles 404 in sequence to drive multiple screws 403 to rotate, so that the screws 403 can be screwed into the rectangular seat 402. The working distance between the multiple rectangular seats 402 and the limiting rod 5 is adjusted to properly adjust the limiting guide distance of the limiting rod 5 for the heavy carton. When the heavy carton gradually enters the arc-shaped conveyor unit 3 via the conveyor belt 1, the guide wheel 603 on the arc-shaped seat 601 will contact the side of the heavy carton. The external drive unit drives the fixed shaft 610 and the drive pulley 611 to rotate. During the rotation, the drive pulley 611 will drive the transmission pulley 608, tension pulley 609, connecting pulley and driven pulley to rotate simultaneously via the synchronous belt. This causes the guide wheel 603 to apply an active driving force to the heavy carton, which will significantly reduce or even eliminate the sliding friction resistance between the outer periphery of the heavy carton and the limiting frame 405, the limiting rod 5 and the conical roller inside the arc-shaped conveyor unit 3, and actively accelerate the moving speed of the outer periphery of the heavy carton. During this process, the travel of the sliding rod 702 is adjusted by the position of the limiting frame 405. As the sliding rod 702 moves, it drives the sliding seat 703 to adjust the squeezing force of the main liquid bladder 704. As the squeezing force of the main liquid bladder 704 varies, the movement distance of the sliding seat 708 and the wear-resistant block 709 is adjusted in conjunction with the action of the first spring 710. This adjusts the squeezing force of the wear-resistant block 709 relative to the friction wheel 711. As the limiting frame 405 moves toward the center of the conveyor belt 1, the output belt 2, and the arc conveying unit 3, the driving torque transmitted to the guide wheel 603 is increased, which helps to reduce the rotation effect of the guide wheel 603 and dynamically reduces the actual internal and external speed difference applied to the heavy carton. Conversely, reducing the driving torque transmitted to the guide wheel 603 increases the rotation effect of the guide wheel 603 and dynamically increases the actual internal and external speed difference applied to the heavy carton. When the arc-shaped conveyor unit 3 is about to complete the turning operation of the heavy carton, the second spring 803 will drive the piston 804 and the limit head 802 to provide slight auxiliary buffering for the carton to be conveyed to the output belt 2, reducing the rotational inertia accumulated by the heavy carton due to the internal and external speed difference, and improving the system's ability to smoothly connect the heavy carton to the straight section of the conveyor.

[0028] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A conveying system for heavy-duty carton production, comprising a conveyor belt (1) and an output belt (2), wherein an arc-shaped conveying unit (3) is provided between the conveyor belt (1) and the output belt (2), characterized in that, Also includes: Multiple limiting components (4) are linearly and symmetrically distributed on both sides of the top of the conveyor belt (1), the arc conveyor unit (3) and the output belt (2) to assist in the conveying and limiting of heavy cartons; Four limiting rods (5) are symmetrically installed on both sides of the top of the conveyor belt (1), the arc conveyor unit (3) and the output belt (2), and two limiting rods (5) are symmetrically distributed on both sides of the limiting assembly (4) for series limiting between multiple limiting assemblies (4); The parallel speed control component (6) is located on one side of the top of the arc conveying unit (3) and is set on the outer periphery of the arc conveying unit (3). The parallel speed control component (6) is located between two limit rods (5) and is used to adjust the difference between the inside and outside of the heavy carton during the conveying process of the arc conveying unit (3). It is suitable for the installation requirements of heavy cartons of different sizes. Two limit speed regulating components (7) are symmetrically distributed on both sides of the arc-shaped conveying unit (3) as the center, and are used to adjust the rotation speed of the parallel speed regulating component (6); The auxiliary adjustment component (8) is located at the end of the arc conveyor unit (3) away from the conveyor belt (1) and is used to buffer the output inertial force of the heavy carton to ensure its guiding in subsequent conveying.

2. The heavy-duty carton production conveying system according to claim 1, characterized in that, The limiting component (4) includes: The support base (401) is installed on the outside of the conveyor belt (1), the arc conveyor unit (3) and the output belt (2) by screws, and the top of the support base (401) is on the same horizontal plane as the top of the conveyor belt (1), the arc conveyor unit (3) and the output belt (2); A rectangular base (402) is installed on one side of the top of the support base (401), and a threaded hole is provided in the center of the rectangular base (402), and a circular through hole is provided on both sides of the threaded hole; The limiting frame (405) is located above the conveyor belt (1), the arc conveyor unit (3) and the output belt (2), and the limiting frame (405) has a first through hole on both sides for the limiting rod (5) to pass through. The screw (403) is connected to the threaded hole in the rectangular seat (402), and one end of the screw (403) is connected to the limiting frame (405) to adjust the position of the limiting frame (405) and the limiting rod (5). The handle (404) is fixed to the other end of the screw (403), and the handle (404) is located on the side away from the conveyor belt (1), the arc conveyor unit (3) and the output belt (2).

3. The heavy-duty carton production conveying system according to claim 2, characterized in that, The parallel speed control component (6) includes: Multiple arc-shaped seats (601) are linearly distributed on the outer periphery of the arc-shaped conveying unit (3) and symmetrically distributed with respect to the center position of the arc-shaped conveying unit (3). The arc-shaped seats (601) have cavities (602) inside. Multiple sets of guide wheels (603) are located inside multiple arc-shaped seats (601). Each set of guide wheels (603) has multiple guide wheels, and the multiple guide wheels (603) are distributed in a linear array inside the arc-shaped seat (601). Multiple sets of connecting sleeves (604) are installed on one side of multiple arc-shaped seats (601). Each set of connecting sleeves (604) has four sleeves. One side of each of the four connecting sleeves (604) is fixedly connected to the outer wall of the arc-shaped seat (601). The connecting sleeves (604) are sleeved on the outer periphery of the limiting rod (5), and the inner periphery of the connecting sleeves (604) is provided with elastic elements for installing the arc-shaped seats (601) on the limiting rod (5) at equal intervals. Multiple sets of hinge units are set on one side of multiple arc-shaped seats (601), wherein each set of hinge units has four units and is symmetrically installed on both sides of the arc-shaped seats (601) for connecting multiple arc-shaped seats (601) to each other or to the arc-shaped seats (601) and the limiting frame (405). The drive unit is located inside the arc-shaped seat (601) and on top of the guide wheel (603) for synchronously rotating multiple sets of guide wheels (603) to actively adjust the heavy cartons conveyed to the arc-shaped conveyor unit (3).

4. The heavy-duty carton production conveying system according to claim 3, characterized in that, The conveying hinge unit includes: Two telescopic hinge seats (606) are symmetrically located on one side of the arc-shaped seat (601), and one side of the telescopic hinge seat (606) is fixedly connected to the outer wall of the arc-shaped seat (601) or the outer wall of the limiting frame (405) located on one side of the conveyor belt (1). Four first hinge seats (605) are symmetrically located on the side of the arc-shaped seat (601) away from the telescopic hinge seat (606), and two of the first hinge seats (605) are symmetrically arranged with the telescopic hinge seat (606) as the center. The telescopic hinge seat (606) and the first hinge seats (605) are fixedly hinged by a pin. The side of the first hinge seat (605) away from the telescopic hinge seat (606) is fixedly connected to the outer wall of the arc-shaped seat (601) or the limiting frame (405) located on the side of the output belt (2).

5. A conveying system for heavy-duty carton production according to claim 3, characterized in that, The driving unit includes: Multiple sets of connecting shafts (607) are located inside multiple arc-shaped seats (601), and each set of connecting shafts (607) is composed of multiple connecting shafts (607). The outer periphery of the connecting shaft (607) is fixedly connected to the outer wall of the guide wheel (603) for the connecting shaft (607) to drive the guide wheel (603) to rotate, so as to actively transport heavy cartons. Multiple sets of transmission pulleys (608) are located inside multiple arc-shaped seats (601), and each set of transmission pulleys (608) is composed of multiple transmission pulleys (608). The transmission pulleys (608) are fixedly connected to the outer periphery of the connecting shaft (607). Multiple sets of connecting pulley units are located inside multiple arc-shaped seats (601), and each set of connecting pulley units consists of two connecting pulleys and a round shaft. The connecting pulleys are set on the side opposite to the output belt (2). Multiple tensioning pulleys (609) are located inside multiple arc-shaped seats (601) and are arranged on the side opposite to the connecting pulley, and an external elastic tensioning unit is provided on one side of the tensioning pulley (609); The drive pulley (611) is located inside the arc-shaped seat (601) relative to the conveyor belt (1); A fixed shaft (610) is installed inside the drive pulley (611), and the fixed shaft (610) is rotatably connected inside the arc-shaped seat (601) on the side opposite to the conveyor belt (1), and the bottom end of the fixed shaft (610) is connected to an external drive unit through a drive shaft and a coupling. The driven pulley is located inside the arc-shaped seat (601) relative to the output belt (2), and it is symmetrically arranged with the driving pulley (611); The synchronous belt is wound sequentially around the outer periphery of the drive pulley (608), connecting pulley, tension pulley (609), driving pulley (611) and driven pulley, and the synchronous belt is sealed around the outer periphery of the drive pulley (608), connecting pulley, tension pulley (609), driving pulley (611) and driven pulley.

6. The heavy-duty carton production conveying system according to claim 5, characterized in that, The speed control component (7) includes: Two connecting sleeves (701) are symmetrically arranged inside the rectangular base (402), and the connecting sleeves (701) pass through the first through hole and are fixedly connected to the inner wall of the rectangular base (402). The connecting sleeves (701) have a second through hole on the side opposite to the conveyor belt (1), the output belt (2) and the arc conveyor unit (3). Two sliding rods (702) are slidably connected inside two connecting sleeves (701), and one end of the sliding rod (702) passes through the second through hole and extends into the connecting sleeve (701) and is fixedly connected to a sliding seat (703). The sliding rod (702) is hollow, and two third through holes are symmetrically opened on one side of the sliding rod (702). The end of the sliding rod (702) away from the connecting sleeve (701) is fixedly connected to the outer wall of the limiting frame (405). Two main liquid bladders (704) are located inside two connecting sleeves (701) and the cross-sectional shape of the main liquid bladders (704) is set as annular. The main liquid bladders (704) are sleeved on the outer periphery of the sliding rod (702) and the two sides of the main liquid bladders (704) are fixedly connected to the sliding seat (703) and the inner wall of the connecting sleeve (701) respectively. Two infusion tubes (705) are located inside two sliding rods (702), and one end of the infusion tube (705) passes through the outside of the third through hole and is connected to the main liquid bladder (704). The other end of the infusion tube (705) passes through the third through hole and extends into the arc-shaped seat (601). The infusion tube (705) is configured as a flexible tube. The connecting seat (706) is installed inside the arc-shaped seat (601), and the connecting seat (706) is located on the side opposite to the input end (1) or the output band (2). The connecting seat (706) has a fourth through hole on the side away from the inner wall of the input end (1) or the inner wall of the output band (2). An adjustment unit is installed inside the connector (706) and is used to move the adjustment unit via the main liquid bladder (704) to adjust the adjustment force of the adjustment unit.

7. A conveying system for heavy-duty cardboard box production according to claim 6, characterized in that, The adjustment unit includes: The auxiliary fluid bladder (707) is fixed inside one side of the connector (706), and one side of the auxiliary fluid bladder (707) is connected to the infusion tube (705); The sliding seat (708) is slidably connected inside the connecting seat (706), and one side of the sliding seat (708) is fixedly connected to the outer wall of the auxiliary liquid bladder (707); The wear-resistant block (709) is slidably connected inside the connecting seat (706), and one side of the wear-resistant block (709) is fixedly connected to the outer wall of the sliding seat (708). The side of the wear-resistant block (709) away from the sliding seat (708) passes through the fourth through hole and extends to the outside of the connecting seat (706). The friction wheel (711) is fixedly connected to the outer periphery of the fixed shaft (610). The rotational resistance of the fixed shaft (610) is adjusted by adjusting the contact force between the wear-resistant block (709) and the friction wheel (711). Two first springs (710) are symmetrically distributed on both sides of the wear-resistant block (709), and the two sides of the first springs (710) are fixedly connected to one side of the sliding seat (703) and the inner wall of the connecting seat (706), respectively.

8. A conveying system for heavy-duty carton production according to claim 7, characterized in that, The auxiliary adjustment component (8) includes: Two fixed seats (801) are both set inside the limiting frame (405) on the side opposite to the output belt (2). The fixed seats (801) are set on the side opposite to the center of the arc-shaped conveying unit (3) and have rectangular through holes. The two fixed seats (801) are symmetrically installed on both sides inside the limiting frame (405). The limiting head (802) is slidably connected inside the rectangular through hole opened inside the fixed base (801). One end of the limiting head (802) is set to be arc-shaped, and the limiting head (802) on the arc side passes through the rectangular through hole and extends to the outside of the fixed base (801). The piston (804) is slidably sealed inside the fixed seat (801), and one side of the piston (804) is fixedly connected to the outer wall of the limiting head (802); Two second springs (803) are symmetrically arranged on both sides of the limiting head (802), and the two sides of the second springs (803) are respectively fixedly connected to one side of the piston (804) and the inner wall of the fixed seat (801).

9. A conveying system for heavy-duty carton production according to claim 8, characterized in that, The auxiliary adjustment component (8) further includes: Two conveying pipes (805) are composed of a conveying branch pipe and a conveying main pipe. One end of the conveying branch pipe is connected to the fixed seat (801), and the other end of the conveying branch pipe is connected to the conveying main pipe through a pipe joint. The other end of the conveying main pipe passes through the sliding rod (702) and is connected to an air bladder. The two sides of the air bladder are respectively fixedly connected to one side of the sliding seat (703) and the inner wall of the connecting sleeve (701).

10. A conveying system for heavy-duty carton production according to claim 9, characterized in that, Also includes: Three drive sources are installed on the outside of the conveyor belt (1), output belt (2) and arc conveyor unit (3) respectively via support frames, to provide power to the conveyor rollers inside the conveyor belt (1), output belt (2) and arc conveyor unit (3).

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