Friction type power and free roller line and using method thereof

Abstract

The invention relates to the technical field of standardized conveying systems, and discloses a friction type power and free roller line and a using method thereof.The friction type power and free roller line comprises two linear guide rail frames which are arranged in a spaced mode, and each linear guide rail frame is provided with a guide rail extending in the conveying direction; a plurality of power and free roller assemblies are evenly arranged in the guide rail in the length direction of the guide rail, each power and free roller assembly is internally provided with a roller for driving a tray to be conveyed in the conveying direction, all the rollers are jointly connected with a driving part for driving the rollers to rotate, and the driving part is provided with a damping structure which is coaxially connected with the rollers and enables the rollers to idle. Scratch of the rollers to the bottom surface of the tray can be reduced, the manufacturing cost is low, and the market prospect is very wide.

Description

Technical Field

[0001] This invention relates to the technical field of standardized conveyor systems, specifically to a friction-type accumulating roller conveyor and its usage method. Background Technology

[0002] With the development of industrial automation technology, conveyor lines are widely used in automated production and logistics transportation. The most basic function of a conveyor line is to transport items from a specific location to another designated location according to a programmed route. The control center uses the conveyor line to capture information, sort, and assign items. Currently, conveyor lines include chain type, belt type, conveyor roller type, and roller type. The aforementioned chain type, belt type, conveyor roller type, and roller type conveyors can transport workpieces from one workstation to another.

[0003] However, in actual production, if the previous process is not completed for various reasons, the subsequent workpiece needs to be temporarily stopped and buffered on the roller conveyor. If the workpiece is only stopped while the rollers that are in direct contact with it continue to rotate, it may leave marks on the surface of the workpiece. Therefore, when the workpiece stops, the rollers supporting the workpiece must not move relative to the workpiece.

[0004] Traditional roller conveyors for transporting workpieces cannot solve the above problems. Therefore, in order to solve these technical problems, pallets are currently used to carry workpieces. The pallet is in direct contact with the rollers, and the pallet is driven by the rotation of the rollers. A designed material blocking mechanism is used to stop the pallet, thereby stopping the workpiece from moving. However, the rollers are still rotating continuously at this time. During the continuous rotation of the rollers, friction occurs between the rollers and the bottom of the pallet, which shortens the service life of the pallet and increases the cost of purchasing pallets for the company. Summary of the Invention

[0005] The present invention aims to provide a friction-type accumulation roller conveyor and its usage method to solve the technical problem in the prior art where the continuous rotation of the rollers causes friction with the bottom of the pallet, which shortens the service life of the pallet and increases the cost of purchasing pallets for the company.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: 1) A friction-type accumulating roller conveyor includes two sets of linear guide rails configured to be spaced apart from each other. Each set of linear guide rails has a guide rail extending along the conveying direction. Several accumulating roller assemblies are evenly arranged along the length of the guide rail. Each accumulating roller assembly has a roller that drives the pallet to be transported along the conveying direction. All rollers are connected to a drive member that drives the rollers to rotate. The drive member is provided with a damping structure that is coaxially connected to the rollers and allows the rollers to idle.

[0007] This invention features a simple structure, ingenious design, and reasonable layout. Addressing the problems existing in the operation of traditional roller conveyors or conveyor lines, it designs a special roller conveyor structure. It utilizes two sets of linear guide rails spaced apart to place pallets. At the same time, the guide rails extending along the conveying direction on each linear guide rail guide the pallet's transport direction. Several accumulation roller assemblies installed along the length of the guide rails work together to support the pallet. Under the action of the drive component, all the rollers in each accumulation roller assembly rotate together, driving the pallet to move along the conveying direction.

[0008] When it is necessary to stop the pallet, the existing material blocking mechanism is used to prevent the pallet from continuing to move in the conveying direction. At this time, the damping structure designed on the drive component generates friction as the roller rotates. The friction generated by the damping structure causes the roller to stop running, while the drive component continues to run and idles at the stop position of the pallet. This special roller structure can stop the pallet in the conveying direction. At the same time, since the roller stops running, the relative movement between the roller and the pallet is reduced, reducing the abrasion of the bottom surface of the pallet by the roller. It has low manufacturing cost and a very broad market prospect.

[0009] 2) According to the friction-type accumulating roller conveyor line described in 1), wherein: The guide rail includes a first main guide rail and a first secondary guide rail integrally formed with the first main guide rail. The first secondary guide rails are arranged opposite to each other between adjacent guide rails. Both the first main guide rail and the first secondary guide rail are made of aluminum alloy. The first main guide rail has a first movable space for the installation of a first driving component and several first damping structures. The first secondary guide rail has a first support chamber for the installation of several rollers. The upper surface of the first secondary guide rail has an open opening that communicates with the first support chamber and allows the rollers to protrude.

[0010] This invention employs a first main guide rail and a first secondary guide rail to form an integrally molded guide rail, increasing its strength. At the same time, the first active space within the first main guide rail provides an installation space for the first driving component and several first damping structures, making the overall design more aesthetically pleasing. The first secondary guide rail between adjacent guide rails serves as the two sides of the support tray. The open opening on the upper surface of the first secondary guide rail is connected to the first support chamber within the first secondary guide rail, allowing the first support chamber to support the rollers and make the rollers protrude from the open opening. In this way, the rotation of the rollers drives the tray to move in the conveying direction.

[0011] 3) A friction-type accumulating roller conveyor as described in 1), wherein: The guide rail includes a second main guide rail and a second auxiliary guide rail integrally formed with the second main guide rail. The second auxiliary guide rails are arranged opposite to each other between adjacent guide rails. Both the second main guide rail and the second auxiliary guide rail are made of aluminum alloy. The second main guide rail has a second movable space for the installation of a first driving component and several first damping structures. The second auxiliary guide rail has a first expansion chamber that extends outward and protrudes. Several first mounting holes for the installation of rollers are evenly distributed along the length direction on the side of the second auxiliary guide rail away from the second main guide rail.

[0012] This invention employs a second main guide rail and a second auxiliary guide rail to form an integrally molded guide rail, increasing its strength. Simultaneously, a second movable space within the second main guide rail provides an installation space for the first drive component and several first damping structures, resulting in a more aesthetically pleasing overall design. The second auxiliary guide rail, located between adjacent guide rails, serves as the two sides supporting the tray. The first expansion chamber within the second auxiliary guide rail is designed to increase its size to meet the strength requirements of supporting the rollers. A first rotating shaft passes through a first mounting port and is installed with the rollers, placing them on the side of the second auxiliary guide rail opposite to the second main guide rail. This allows and supports the rotation of the rollers, thus using the rotation of the rollers to drive the tray towards the conveying direction.

[0013] 4) A friction-type accumulating roller conveyor according to any one of 2) or 3), wherein: The first damping structure includes a first rotating shaft. One end of the first rotating shaft passes through a roller and is rotatably connected to a guide rail. A first copper sleeve is fitted on the other end of the first rotating shaft. A sprocket connected to a driving component is fitted on the outer surface of the first copper sleeve. A first friction plate and a second friction plate fitted on the first rotating shaft are respectively provided on both sides of the sprocket. A first spring fitted on the first rotating shaft is installed on the side of the second friction plate opposite to the sprocket. A first nut threadedly connected to the first rotating shaft is provided on the side of the first spring opposite to the second friction plate.

[0014] This invention uses a first nut and a second spring plate to define the position of the first spring, and the first and second spring plates to define the position of the sprocket. In use, the first spring acts on the second spring plate, causing the second friction plate and the first friction plate to clamp together on the sprocket. The friction between the first and second friction plates enables the transmission of the torque of the first rotating shaft under normal operating conditions, thereby enabling the drive component to drive the sprocket to rotate, the sprocket to drive the first rotating shaft to rotate, the first rotating shaft to drive the rollers to rotate, and all the rollers rotating together to drive the pallet to move along the conveying direction.

[0015] Once the pallet is blocked from continuing to move along the conveying direction by the material blocking mechanism in the existing technology, the friction force of the first friction plate and the second friction plate clamping the sprocket on both sides of the roller under the pallet is insufficient to drive the first rotating shaft to rotate. Therefore, the first rotating shaft and the sprocket will not rotate, and the sprocket will rotate around the first copper sleeve. This structure allows the pallet to stop on the roller conveyor at any time. At the same time, it also reduces the relative movement between the roller rotation and the pallet, which would cause the lower surface of the pallet to be scratched, and reduces the frequency of pallet replacement, thereby reducing the company's purchase costs.

[0016] 5) A friction-type accumulating roller conveyor as described in 1), wherein: The first driving component includes a driving wheel and a driven wheel. The driving wheel is coaxially connected to a first driving shaft that is rotatably connected to a guide rail. A first servo motor is coaxially connected to the first driving shaft. The first servo motor is mounted on a linear guide rail frame. A chain is wound between the driving wheel and the driven wheel. The driving wheel and the driven wheel are located on both sides of all sprockets, and all sprockets mesh with the chain.

[0017] The present invention uses a first servo motor to drive a first drive shaft to rotate, and the first drive shaft drives a drive wheel fixedly connected to it to rotate. The rotation of the drive wheel drives a chain to run around the drive wheel and the driven wheel. During the operation of the chain, all the sprockets are driven to rotate, and each of the sprockets drives a first rotating shaft to rotate. The first rotating shaft drives the roller to rotate, thereby realizing the movement of the pallet along the conveying direction.

[0018] 6) A friction-type accumulating roller conveyor according to 1), wherein: The guide rail includes a third main guide rail and a third secondary guide rail integrally formed with the third main guide rail. The third secondary guide rails are arranged opposite to each other between adjacent guide rails. Both the third main guide rail and the third secondary guide rail are made of aluminum alloy. The third main guide rail has a third movable space for the installation of a second driving component and several second damping structures. The third secondary guide rail has a second expansion chamber that extends outward and protrudes. Several second mounting ports for the installation of rollers are evenly distributed along the length direction on the side of the third secondary guide rail away from the third main guide rail. The second mounting ports allow the first rotating shaft to pass through and be installed with the roller.

[0019] This invention employs a third main guide rail and a third auxiliary guide rail to form an integrally molded guide rail, increasing its strength. Simultaneously, the third movable space within the third main guide rail provides installation space for the second drive component and several second damping structures, resulting in a more aesthetically pleasing overall design. The third auxiliary guide rail between adjacent guide rails serves as the two sides supporting the tray. The second expansion chamber within the third auxiliary guide rail is designed to increase its size to meet the strength requirements of supporting the rollers. A first rotating shaft passes through the first mounting port and is installed with the rollers, placing them on the side of the third auxiliary guide rail opposite to the third main guide rail. This allows and supports the rotation of the rollers, thus using the rotation of the rollers to drive the tray in the conveying direction.

[0020] 7) A friction-type accumulating roller conveyor according to 6), wherein: The second damping structure includes a first rotating shaft, one end of which passes through a roller and is rotatably connected to a guide rail. A main bevel gear is fixed to the other end of the first rotating shaft. A secondary bevel gear meshes with the main bevel gear. An accumulation component is coaxially connected to the secondary bevel gear. The accumulation component is connected to the second driving component.

[0021] In this invention, the second driving component drives the accumulator to rotate, and the accumulator drives the secondary bevel gear to rotate. Since the secondary bevel gear meshes with the main bevel gear, the secondary bevel gear drives the main bevel gear to rotate. When the main bevel gear rotates, it drives the coaxial first rotating shaft to rotate. The first rotating shaft drives the roller located on the side of the third secondary guide rail away from the third main guide rail to rotate. All rollers drive the pallet to run along the conveying direction.

[0022] 8) A friction-type accumulating roller conveyor according to 7), wherein: The second driving component includes a second driving shaft disposed within the guide rail, the axis of the second driving shaft being parallel to the guide rail, a second servo motor coaxially connected to the second driving shaft and fixed on the linear guide rail frame, and a second rotating shaft extending along the length of the guide rail coaxially connected to the second driving shaft, with an accumulation component in each second damping structure sleeved on the second rotating shaft.

[0023] This invention uses a second servo motor to drive a second drive shaft to rotate. When the second drive shaft rotates, it drives a second rotating shaft to rotate. The second rotating shaft together drives all the stacking components to rotate. The stacking components are coaxially connected to the secondary bevel gear. Thus, the first rotating shaft drives the rollers located on the side of the third secondary guide rail away from the third main guide rail to rotate. All the rollers drive the pallet to run along the conveying direction.

[0024] 9) A friction-type accumulating roller conveyor according to 7), wherein: The accumulator includes a second copper sleeve fixed to a second rotating shaft by a pin. The outer surface of the second copper sleeve is for mounting a secondary bevel gear. One end of the secondary bevel gear is provided with a third friction plate fixed to the second copper sleeve. The other end of the secondary bevel gear is fixed with a fourth friction plate. The side of the third friction plate away from the secondary bevel gear is provided with a second spring sleeved on the second copper sleeve. The side of the second spring away from the third friction plate is provided with a second nut threadedly connected to the second rotating shaft. The side of the fourth friction plate away from the secondary bevel gear is provided with a stop block fixed to the first rotating shaft.

[0025] The present invention has a simple, compact, and reasonable structure, and is stable and reliable in operation. When the second driving component drives the second rotating shaft to rotate, the second rotating shaft drives the second copper sleeve to rotate, and the second copper sleeve drives the auxiliary gear to rotate. At this time, the friction force generated by the clamping of the auxiliary gear between the third and fourth friction plates is greater than the resistance of the roller running. At this time, the second rotating shaft drives the matching main gear to rotate through the auxiliary gear, and the main gear drives the corresponding roller to rotate, thereby realizing that all rollers drive the pallet to run along the conveying direction.

[0026] Once the pallet is blocked from continuing to move along the conveying direction by the existing material blocking mechanism, the friction force generated by the third and fourth friction plates on both sides of the roller under the pallet clamping the auxiliary gear is less than the resistance of the roller's operation and is insufficient to drive the second rotating shaft to rotate. Therefore, the second rotating shaft and the main gear will not rotate, while the auxiliary gear will rotate freely around the second copper sleeve. This structure allows the pallet to stop on the roller conveyor at any time. At the same time, it also reduces the relative movement between the roller rotation and the pallet, which would cause the lower surface of the pallet to be scratched, reducing the frequency of pallet replacement and thus reducing the company's purchase costs.

[0027] 10) The method of using the friction-type accumulating roller conveyor described above, applied to the aforementioned friction-type accumulating roller conveyor, includes the following steps: Step 1: Use two sets of linear guide rails spaced apart to place the pallet. At the same time, the guide rails on each linear guide rail extending along the conveying direction guide the pallet transport direction. Under the action of the drive unit, all the rollers in each accumulation roller assembly rotate together and drive the pallet to move along the conveying direction. Step 2: When it is necessary to stop the pallet, the existing material blocking mechanism is used to prevent the pallet from continuing to move in the conveying direction. The damping structure designed on the drive unit generates friction as the roller rotates. The friction generated by the damping structure causes the roller to stop running, while the drive unit continues to run and generates free spin at the stop position of the pallet, so that the pallet stops in the conveying direction and the roller stops running.

[0028] Compared with the prior art, the present invention also has the following technical effects: This invention can be applied to a wide variety of industrial production lines and logistics transportation lines. It can limit the position of pallets during transportation according to the needs of industrial production lines and logistics transportation lines, while reducing friction between rollers and pallets, reducing abrasion of the bottom surface of pallets by rollers, and has low manufacturing cost and a very broad market prospect. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a friction-type accumulating roller conveyor according to Embodiment 1 of the present invention; Figure 2 for Figure 1 Sectional view of A1-A1; Figure 3 This is a schematic diagram of the structure of an accumulation roller assembly in a friction-type accumulation roller conveyor according to Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the structure of a friction-type accumulating roller conveyor according to Embodiment 2 of the present invention; Figure 5 for Figure 4 Sectional view of A2-A2; Figure 6 This is a schematic diagram of the structure of an accumulation roller assembly in a friction-type accumulation roller conveyor according to Embodiment 2 of the present invention; Figure 7 This is a schematic diagram of the structure of a friction-type accumulating roller conveyor according to Embodiment 3 of the present invention; Figure 8 for Figure 7 Sectional view of A3-A3; Figure 9 This is a schematic diagram of the structure of an accumulation roller assembly in a friction-type accumulation roller conveyor according to Embodiment 3 of the present invention; Figure 10 This is a flowchart illustrating a method for using a friction-type accumulating roller conveyor according to the present invention. Detailed Implementation

[0030] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings of the instruction manual include: first main guide rail 1, roller 2, first secondary guide rail 3, first rotating shaft 4, first friction plate 5, sprocket 6, first copper sleeve 7, second friction plate 8, first spring 9, first nut 10, second main guide rail 11, second secondary guide rail 12, third main guide rail 13, third secondary guide rail 14, second rotating shaft 15, main bevel gear 16, secondary bevel gear 17, third friction plate 18, second spring 19, second copper sleeve 20, and second nut 21.

[0031] Example 1 See Figure 1 and Figure 2As shown, in this embodiment, a friction-type accumulating roller conveyor includes two sets of linear guide rails, which are configured to be spaced apart from each other. Each set of linear guide rails has a guide rail extending along the conveying direction. Several accumulating roller assemblies are evenly arranged along the length of the guide rail. Each accumulating roller assembly has a roller 2 that drives the pallet to be transported along the conveying direction. All rollers 2 are connected to a driving member that drives the rollers 2 to rotate. The driving member is provided with a damping structure that is coaxially connected to the rollers 2 and allows the rollers 2 to idle.

[0032] The guide rail includes a first main guide rail 1 and a first secondary guide rail 3 integrally formed with the first main guide rail 1. The first secondary guide rails 3 are arranged opposite to each other between adjacent guide rails. Both the first main guide rail 1 and the first secondary guide rail 3 are made of aluminum alloy. The first main guide rail 1 has a first movable space for the installation of a first driving component and several first damping structures. The first secondary guide rail 3 has a first support chamber for the installation of several rollers 2. The upper surface of the first secondary guide rail 3 has an open opening that communicates with the first support chamber and allows the rollers 2 to protrude.

[0033] In this embodiment, the first main guide rail 1 and the first secondary guide rail 3 are used together to form an integral guide rail to increase its strength. At the same time, the first active space in the first main guide rail 1 provides an installation space for the first driving component and several first damping structures, making the overall appearance more aesthetically pleasing. The first secondary guide rail 3 between adjacent guide rails serves as the two sides of the support tray. The opening on the upper surface of the first secondary guide rail 3 is connected to the first support chamber in the first secondary guide rail 3, so that the first support chamber can support the roller 2 and allow the roller 2 to protrude from the opening. In this way, the rotation of the roller 2 drives the tray to move in the conveying direction.

[0034] See Figure 3 As shown, in this embodiment, the first damping structure includes a first rotating shaft 4. One end of the first rotating shaft 4 passes through the roller 2 and is rotatably connected to the guide rail. A first copper sleeve 7 is fitted on the other end of the first rotating shaft 4. A sprocket 6 connected to the driving component is fitted on the outer surface of the first copper sleeve 7. A first friction plate 5 and a second friction plate 8 fitted on the first rotating shaft 4 are respectively provided on both sides of the sprocket 6. A first spring 9 fitted on the first rotating shaft 4 is installed on the side of the second friction plate 8 away from the sprocket 6. A first nut 10 threadedly connected to the first rotating shaft 4 is provided on the side of the first spring 9 away from the second friction plate 8.

[0035] In this embodiment, the position of the first spring 9 is defined by the first nut 10 and the second spring 19, and the position of the sprocket 6 is defined by the first spring 9 and the second spring 19. In use, the first spring 9 acts on the second spring 19, so that the second friction plate 8 and the first friction plate 5 are clamped together on the sprocket 6. The torque of the first rotating shaft 4 is transmitted under normal working conditions through the friction between the first friction plate 5 and the second friction plate 8, thereby realizing that the drive component drives the sprocket 6 to rotate, the sprocket 6 drives the first rotating shaft 4 to rotate, the first rotating shaft 4 drives the roller 2 to rotate, and all the rollers 2 rotate together to drive the pallet to run along the conveying direction.

[0036] Once the pallet is blocked from continuing to move along the conveying direction by the material blocking mechanism in the existing technology, the friction force of the first friction plate 5 and the second friction plate 8 on both sides of the roller 2 under the pallet clamping the sprocket 6 is insufficient to drive the first rotating shaft 4 to rotate. Therefore, the first rotating shaft 4 and the sprocket 6 will not rotate, and the sprocket 6 will rotate around the first copper sleeve 7. This structure allows the pallet to stop on the roller conveyor at any time. At the same time, it also reduces the relative movement between the roller 2 and the pallet, which would cause the lower surface of the pallet to be scratched, reducing the frequency of pallet replacement and thus reducing the company's purchase costs.

[0037] Example 2 See Figure 4 and Figure 5 As shown, this embodiment differs from Embodiment 1 in that the guide rail in this embodiment includes a second main guide rail 11 and a second auxiliary guide rail 12 integrally formed with the second main guide rail 11. The second auxiliary guide rails 12 are arranged opposite to each other between adjacent guide rails. Both the second main guide rail 11 and the second auxiliary guide rail 12 are made of aluminum alloy. The second main guide rail 11 has a second movable space for the installation of the first driving component and several first damping structures. The second auxiliary guide rail 12 has a first expansion chamber that extends outward and protrudes. Several first mounting holes for the installation of rollers 2 are evenly distributed along the length direction on the side of the second auxiliary guide rail 12 away from the second main guide rail 11.

[0038] In this embodiment, the second main guide rail 11 and the second auxiliary guide rail 12 are used together to form an integral guide rail to increase its strength. At the same time, the second active space in the second main guide rail 11 provides an installation space for the first drive component and several first damping structures, making the overall appearance more aesthetically pleasing. The second auxiliary guide rail 12 between adjacent guide rails serves as the two sides of the support tray. The first expansion chamber in the second auxiliary guide rail 12 is to increase the size of the second auxiliary guide rail 12 to meet the strength of supporting the roller 2. The first rotating shaft 4 passes through the first mounting port and is installed with the roller 2. The roller 2 is installed on the side of the second auxiliary guide rail 12 away from the second main guide rail 11, which allows the roller 2 to rotate and supports the rotation of the roller 2. In this way, the rotation of the roller 2 drives the tray to move in the conveying direction.

[0039] See Figure 6 As shown, in this embodiment, the first rotating shaft 4 passes through the first auxiliary guide rail 3 and is connected to the roller 2, so that the roller 2 is rotatably connected to the guide rail. The other end of the first rotating shaft 4 is fitted with a first copper sleeve 7. The outer surface of the first copper sleeve 7 is fitted with a sprocket 6 connected to the driving component. The two sides of the sprocket 6 are respectively provided with a first friction plate 5 and a second friction plate 8 fitted on the first rotating shaft 4. The side of the second friction plate 8 away from the sprocket 6 is fitted with a first spring 9 fitted on the first rotating shaft 4. The side of the first spring 9 away from the second friction plate 8 is provided with a first nut 10 threadedly connected to the first rotating shaft 4.

[0040] The position of the first spring 9 is defined by the first nut 10 and the second spring 19, and the position of the sprocket 6 is defined by the first spring 9 and the second spring 19. In use, the first spring 9 acts on the second spring 19, so that the second friction plate 8 and the first friction plate 5 are clamped together on the sprocket 6. The torque of the first rotating shaft 4 is transmitted under normal working conditions through the friction between the first friction plate 5 and the second friction plate 8, thereby realizing that the drive component drives the sprocket 6 to rotate, the sprocket 6 drives the first rotating shaft 4 to rotate, the first rotating shaft 4 drives the roller 2 to rotate, and all the rollers 2 rotate together to drive the pallet to run along the conveying direction.

[0041] Once the pallet is blocked from continuing to move along the conveying direction by the material blocking mechanism in the existing technology, the friction force of the first friction plate 5 and the second friction plate 8 on both sides of the roller 2 under the pallet clamping the sprocket 6 is insufficient to drive the first rotating shaft 4 to rotate. Therefore, the first rotating shaft 4 and the sprocket 6 will not rotate, and the sprocket 6 will rotate around the first copper sleeve 7. This structure allows the pallet to stop on the roller conveyor at any time. At the same time, it also reduces the relative movement between the roller 2 and the pallet, which would cause the lower surface of the pallet to be scratched, reducing the frequency of pallet replacement and thus reducing the company's purchase costs.

[0042] Meanwhile, in Embodiments 1 and 2, the first driving component includes a driving wheel and a driven wheel. The driving wheel is coaxially connected to a first driving shaft that is rotatably connected to a guide rail. A first servo motor is coaxially connected to the first driving shaft. The first servo motor is mounted on a linear guide rail frame. A chain is wound between the driving wheel and the driven wheel. The driving wheel and the driven wheel are located on both sides of all sprockets 6, and all sprockets 6 mesh with the chain.

[0043] In this embodiment, a first servo motor drives a first drive shaft to rotate, which in turn drives a drive wheel fixedly connected to it to rotate. The rotation of the drive wheel causes a chain to run around the drive wheel and the driven wheel. During the operation of the chain, all sprockets 6 are driven to rotate, and each of the sprockets 6 drives a first rotating shaft 4 to rotate. The first rotating shaft 4 drives the roller 2 to rotate, thereby enabling the pallet to run along the conveying direction.

[0044] Example 3 See Figure 7 and Figure 8 As shown, this embodiment differs from Embodiment 1 in that: the guide rail includes a third main guide rail 13 and a third secondary guide rail 14 integrally formed with the third main guide rail 13. The third secondary guide rails 14 are arranged opposite to each other between adjacent guide rails. Both the third main guide rail 13 and the third secondary guide rail 14 are made of aluminum alloy. The third main guide rail 13 has a third movable space for the installation of the second drive component and several second damping structures. The third secondary guide rail 14 has a second expansion chamber that extends outward and protrudes. Several second mounting ports for the installation of rollers 2 are evenly distributed along the length direction on the side of the third secondary guide rail 14 away from the third main guide rail 13. The second mounting ports allow the first rotating shaft 4 to pass through and be installed with the rollers 2.

[0045] In this embodiment, the third main guide rail 13 and the third auxiliary guide rail 14 are used together to form an integral guide rail to increase its strength. At the same time, the third active space within the third main guide rail 13 provides an installation space for the second drive component and several second damping structures, making the overall design more aesthetically pleasing. The third auxiliary guide rail 14 between adjacent guide rails serves as the two sides of the support tray. The second expansion chamber within the third auxiliary guide rail 14 is used to increase the size of the third auxiliary guide rail 14 to meet the strength requirements of supporting the roller 2. The first rotating shaft 4 passes through the first mounting port and is installed with the roller 2. The roller 2 is installed on the side of the third auxiliary guide rail 14 away from the third main guide rail 13, allowing the roller 2 to rotate and supporting its rotation. In this way, the rotation of the roller 2 drives the tray to move in the conveying direction.

[0046] Meanwhile, the second damping structure includes a first rotating shaft 4, one end of which passes through the roller 2 and is rotatably connected to the guide rail. A main bevel gear 16 is fixed on the other end of the first rotating shaft 4. A secondary bevel gear 17 meshes with the main bevel gear 16. An accumulation component is coaxially connected to the secondary bevel gear 17. The accumulation component is connected to the second driving component.

[0047] In this embodiment, the second driving component drives the accumulator to rotate, and the accumulator drives the secondary bevel gear 17 to rotate. Since the secondary bevel gear 17 meshes with the main bevel gear 16, the secondary bevel gear 17 drives the main bevel gear 16 to rotate. When the main bevel gear 16 rotates, it drives the coaxial first rotating shaft 4 to rotate. The first rotating shaft 4 drives the roller 2 located on the side of the third secondary guide rail 14 away from the third main guide rail 13 to rotate. All rollers 2 are used to drive the pallet to run along the conveying direction.

[0048] Furthermore, in this embodiment, the second driving component includes a second driving shaft disposed within the guide rail. The axis of the second driving shaft is parallel to the guide rail. A second servo motor fixed on the linear guide rail frame is coaxially connected to the second driving shaft. A second rotating shaft 15 extending along the length of the guide rail is coaxially connected to the second driving shaft. The accumulator in each second damping structure is sleeved on the second rotating shaft 15.

[0049] In this embodiment, the second servo motor drives the second drive shaft to rotate. When the second drive shaft rotates, it drives the second rotating shaft 15 to rotate. The second rotating shaft 15 together drives all the stacking parts to rotate. The stacking parts are coaxially connected with the secondary bevel gear 17, thereby realizing that the first rotating shaft 4 drives the roller 2 located on the side of the third secondary guide rail 14 away from the third main guide rail 13 to rotate. All the rollers 2 drive the pallet to run along the conveying direction.

[0050] See Figure 9 As shown, in this embodiment, the accumulator includes a second copper sleeve 20 fixed to the second rotating shaft 15 by a pin. The outer surface of the second copper sleeve 20 is for mounting the secondary bevel gear 17. One end of the secondary bevel gear 17 is provided with a third friction plate 18 fixed to the second copper sleeve 20. The other end of the secondary bevel gear 17 is fixed with a fourth friction plate. The side of the third friction plate 18 away from the secondary bevel gear 17 is provided with a second spring 19 sleeved on the second copper sleeve 20. The side of the second spring 19 away from the third friction plate 18 is provided with a second nut 21 threadedly connected to the second rotating shaft 15. The side of the fourth friction plate away from the secondary bevel gear 17 is provided with a stop block fixed to the first rotating shaft 4.

[0051] This embodiment has a simple, compact, and reasonable structure, and is stable and reliable in operation. When the second driving component drives the second rotating shaft 15 to rotate, the second rotating shaft 15 drives the second copper sleeve 20 to rotate, and the second copper sleeve 20 drives the auxiliary gear to rotate. At this time, the friction force generated by the clamping of the auxiliary gear between the third friction plate 18 and the fourth friction plate is greater than the resistance of the roller 2 running. At this time, the second rotating shaft 15 drives the matching main gear to rotate through the auxiliary gear, and the main gear drives the corresponding roller 2 to rotate, thereby realizing that all rollers 2 drive the pallet to run along the conveying direction.

[0052] Once the pallet is blocked from continuing to run along the conveying direction by the material blocking mechanism in the existing technology, the friction force generated by the third friction plate 18 and the fourth friction plate on both sides of the roller 2 below the pallet and the clamping of the auxiliary gear is less than the resistance of the roller 2 running, and is insufficient to drive the second rotating shaft 15 to rotate. Therefore, the second rotating shaft 15 and the main gear will not rotate, while the auxiliary gear will rotate around the second copper sleeve 20. This structure allows the pallet to stop on the roller conveyor at any time. At the same time, it also reduces the relative movement between the roller 2 and the pallet, which would cause the lower surface of the pallet to be scratched, and reduces the frequency of pallet replacement, thereby reducing the company's purchase costs.

[0053] This embodiment features a simple structure, ingenious design, and reasonable layout. Addressing the problems existing in traditional roller conveyors or conveyor lines during operation, it designs a special roller conveyor structure. It utilizes two sets of linear guide rails spaced apart to place the pallet. At the same time, the guide rails extending along the conveying direction on each linear guide rail frame guide the pallet's transport direction. Several accumulation roller assemblies 2 installed along the length of the guide rails work together to support the pallet. Under the action of the drive component, all the rollers 2 in each accumulation roller assembly 2 rotate together and drive the pallet to move along the conveying direction.

[0054] When it is necessary to stop the pallet, the existing material blocking mechanism is used to prevent the pallet from continuing to move in the conveying direction. At this time, the damping structure designed on the drive unit generates friction as the roller 2 rotates. The friction generated by the damping structure causes the roller 2 to stop running, while the drive unit continues to run and idles at the stop position of the pallet. This special roller structure can stop the pallet in the conveying direction. At the same time, since the roller 2 stops running, the relative movement between the roller 2 and the pallet is reduced, reducing the abrasion of the bottom surface of the pallet by the roller 2. The manufacturing cost is low and the market prospect is very broad.

[0055] See Figure 10 As shown, the friction-type accumulating roller conveyor in Examples 1-3 is applicable to a method of using a friction-type accumulating roller conveyor. The method of using a friction-type accumulating roller conveyor includes the following steps: Step 1: The pallet is placed using two sets of linear guide rails spaced apart from each other. At the same time, the guide rails extending along the conveying direction on each linear guide rail frame guide the pallet transport direction. Under the action of the drive unit, all the rollers 2 in each accumulation roller 2 assembly rotate together and drive the pallet to run along the conveying direction. Step 2: When it is necessary to stop the pallet, the existing material blocking mechanism is used to prevent the pallet from continuing to move in the conveying direction. The damping structure designed on the drive unit generates friction as the roller 2 rotates. The friction generated by the damping structure causes the roller 2 to stop running, while the drive unit continues to run and generates free spin at the stop position of the pallet, so that the pallet stops in the conveying direction and the roller 2 stops running.

[0056] This embodiment can be applied to a variety of industrial production lines and logistics transportation lines. It can limit the position of the pallet during transportation according to the needs of industrial production lines and logistics transportation lines, while reducing the friction between the roller 2 and the pallet, reducing the scratches on the bottom surface of the pallet by the roller 2, with low manufacturing cost and a very broad market prospect.

[0057] The above are merely embodiments of this solution. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this solution. These modifications and improvements should also be considered within the scope of protection of this solution, and will not affect the effectiveness of the implementation of this solution or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A frictional accumulation roller line, characterized in that, The application relates to a linear guide rail frame, which comprises two groups of linear guide rail frames arranged at intervals, each group of linear guide rail frames is provided with guide rails extending along a conveying direction, each guide rail is provided with a plurality of accumulation roller assemblies arranged uniformly along the length direction of the guide rail, each accumulation roller assembly is provided with rollers for conveying a tray along the conveying direction, all the rollers are connected with a driving element for driving the rollers to rotate, and the driving element is provided with damping structures coaxially connected with the rollers and allowing the rollers to idle.

2. A friction accumulation roller line according to claim 1, characterized in that: The guide rail comprises a first main guide rail and a first auxiliary guide rail integrally formed with the first main guide rail, the first auxiliary guide rails are oppositely arranged between adjacent guide rails, the first main guide rail and the first auxiliary guide rail are made of aluminum alloy, the first main guide rail is provided with a first active space for mounting a first driving element and a plurality of first damping structures, the first auxiliary guide rail is provided with a first supporting cavity for mounting a plurality of rollers, and the upper surface of the first auxiliary guide rail is provided with open ports in communication with the first supporting cavity and protruding from the rollers.

3. A friction accumulation roller line according to claim 1, characterized in that: The guide rail comprises a second main guide rail and a second auxiliary guide rail integrally formed with the second main guide rail, the second auxiliary guide rails are oppositely arranged between adjacent guide rails, the second main guide rail and the second auxiliary guide rail are made of aluminum alloy, the second main guide rail is provided with a second active space for mounting a first driving element and a plurality of first damping structures, the second auxiliary guide rail is provided with a first expansion cavity extending outward and protruding, and the side of the second auxiliary guide rail away from the second main guide rail is uniformly provided with a plurality of first mounting ports along the length direction of the second auxiliary guide rail for mounting the rollers.

4. A frictional accumulation roller line according to any one of claims 2 or 3, characterized in that: The first damping structure comprises a first rotating shaft, one end of the first rotating shaft penetrates through the roller and is rotationally connected to the guide rail, the other end of the first rotating shaft is provided with a first copper sleeve, the outer surface of the first copper sleeve is provided with a sprocket connected with the driving element, the two sides of the sprocket are respectively provided with a first friction plate and a second friction plate sleeved on the first rotating shaft, the side of the second friction plate away from the sprocket is provided with a first spring sleeved on the first rotating shaft, and the side of the first spring away from the second friction plate is provided with a first nut threadedly connected on the first rotating shaft.

5. A friction accumulation roller line according to claim 1, wherein: The first driving element comprises a driving wheel and a driven wheel, the driving wheel is coaxially connected with a first driving shaft rotationally connected to the guide rail, the first driving shaft is coaxially connected with a first servo motor, the first servo motor is mounted on the linear guide rail frame, the driving wheel and the driven wheel are provided with a chain, and the driving wheel and the driven wheel are located on the two sides of all the sprockets and are in mesh with the chain.

6. A friction accumulation roller line according to claim 1, wherein: The guide rail comprises a third main guide rail and a third auxiliary guide rail integrally formed with the third main guide rail, the third auxiliary guide rails are oppositely arranged between adjacent guide rails, the third main guide rail and the third auxiliary guide rail are made of aluminum alloy, the third main guide rail is provided with a third active space for mounting a second driving element and a plurality of second damping structures, the third auxiliary guide rail is provided with a second expansion cavity extending outward and protruding, the side of the third auxiliary guide rail away from the third main guide rail is uniformly provided with a plurality of second mounting ports along the length direction of the third auxiliary guide rail for mounting the rollers, and the second mounting ports are penetrated through by the first rotating shaft and mounted with the rollers.

7. A friction accumulation roller line according to claim 6, wherein: The second damping structure comprises a first rotating shaft, one end of the first rotating shaft penetrates through a roller and is rotationally connected to a guide rail, a main bevel gear is fixed on the other end of the first rotating shaft, a secondary bevel gear is engaged with the main bevel gear, an accumulator is coaxially connected to the secondary bevel gear, and the accumulator is connected with the second driving member.

8. A friction accumulation roller line according to claim 7, characterized in that: The second driving member comprises a second driving shaft arranged in the guide rail, the axis of the second driving shaft is parallel to the guide rail, a second servo motor is coaxially connected to the second driving shaft and is fixed on a linear guide rail frame, the second driving shaft is coaxially connected with a second rotating shaft extending along the length direction of the guide rail, and the accumulator in each second damping structure is sleeved on the second rotating shaft.

9. A friction accumulation roller line according to claim 7, wherein: The accumulator comprises a second copper sleeve fixed on the second rotating shaft by a pin, the outer surface of the second copper sleeve is provided for mounting the secondary bevel gear, one end of the secondary bevel gear is provided with a third friction plate fixed on the second copper sleeve, the other end of the secondary bevel gear is fixedly connected with a fourth friction plate, the side of the third friction plate away from the secondary bevel gear is provided with a second spring sleeved on the second copper sleeve, the side of the second spring away from the third friction plate is provided with a second nut screwed on the second rotating shaft, and the side of the fourth friction plate away from the secondary bevel gear is provided with a stopper fixed on the first rotating shaft.

10. A method of using a friction accumulation roller line according to any one of claims 1-3 or 5-9, characterized in that: The method comprises the following steps: Step one, two groups of linear guide rail frames are arranged at intervals to place the trays, the guide rails extending along the conveying direction on each linear guide rail frame guide the conveying direction of the trays, and the rollers in each accumulator roller assembly rotate together under the action of the driving members and drive the trays to run along the conveying direction; Step two, when it is necessary to stop the trays, a material blocking mechanism in the prior art is used to block the trays from continuing to run in the conveying direction, the damping structure designed on the driving member generates friction force while rotating with the rollers, the friction force generated by the damping structure stops the rollers from running, the driving member continues to run and idles at the stopping position of the trays, the trays are stopped in the conveying direction, and the rollers are stopped from running.

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