A roller conveyor table

Abstract

This invention discloses a roller conveyor table, relating to the field of conveying equipment technology. Multiple sets of roller shaft assemblies are arranged side-by-side along the conveying direction on the frame, forming a conveying surface. Each roller shaft assembly includes roller shafts rotatably mounted on the frame, with multiple conveying balls rotatably arranged adjacently along the axial direction on each roller shaft. This ensures that adjacent conveying balls on a single roller shaft rotate relatively independently. The conveying balls are clearance-fitted with the roller shafts. The frame is also equipped with a drive mechanism for driving the roller shaft assemblies to rotate. This device utilizes independently rotating conveying balls on the conveying surface to ensure that each conveying area is independent, avoiding the problem of the entire line being blocked due to material blockage in some areas.

Description

Technical Field

[0001] This invention relates to the field of automated conveying equipment technology, and in particular to a roller conveyor table. Background Technology

[0002] Conveyor belts, also known as conveyors, utilize the rotational or reciprocating motion of working components, or the flow of media in a pipeline, to transport materials forward. For example, roller conveyors use several rollers spaced at regular intervals on fixed supports to transport packaged goods. The fixed supports are typically composed of several straight or curved segments assembled as needed. Roller conveyors can be used independently or in conjunction with other conveyors or machinery on an assembly line. They offer advantages such as simple structure, reliable operation, convenient installation and disassembly, easy maintenance, and flexible layout. Influenced by advancements in machinery manufacturing, electrical engineering, chemical engineering, and metallurgical industries, conveyor belts have continuously improved, evolving from simply transporting goods within workshops to handling materials within enterprises, between enterprises, and even between cities, becoming an indispensable component of the mechanization and automation of material handling systems.

[0003] For example, an existing Chinese patent (publication number: CN203094986U, publication date: 2013-07-31) discloses a logistics conveying device, including multiple conveyor rollers, which are driven to rotate by a drive mechanism; a conveyor belt is also provided on the conveyor rollers, which are driven to move by the conveyor rollers, and a sleeve with a smooth inner wall is also fitted on the conveyor rollers; the rotation of the conveyor rollers drives the sleeves to rotate, and then the sleeves drive the conveyor belt to move; however, when the material is stuck at a certain position in the above-mentioned conveying device, it will affect the conveying of the entire conveyor rollers, and thus affect the operation of the entire conveying line. Summary of the Invention

[0004] The purpose of this invention is to overcome the problems existing in the prior art. This device uses independently rotating conveying balls on the conveying surface to ensure that each conveying area is independent of each other, thus avoiding the problem of the entire line being blocked due to material blockage in some areas.

[0005] This invention is achieved through the following technical solution: a roller conveyor table, including a frame, on which multiple sets of roller shaft assemblies are arranged side by side along the conveying direction, forming a conveying surface. Each roller shaft assembly includes roller shafts rotatably mounted on the frame, and multiple conveying balls are rotatably arranged adjacently along the axial direction on each roller shaft to ensure that adjacent conveying balls on a single roller shaft rotate relatively independently. The conveying balls are clearance-fitted with the roller shafts. The frame is also provided with a drive mechanism for driving the roller shaft assembly to rotate. The conveying balls are made of nylon and are cylindrical in shape, with a certain supporting surface, thus avoiding the problem of the entire line being blocked due to material blockage in some areas.

[0006] To further optimize this invention, the following technical solutions may be preferred:

[0007] Preferably, a material guiding mechanism is provided on the frame directly below the conveying surface. The material guiding mechanism includes oppositely arranged material guiding plates, which form a V-shaped material conveying channel. The material guiding plates are movably mounted on the frame via an adjusting frame, which is used to adjust the relative distance and installation height between the two material guiding plates. The material guiding mechanism is designed to guide materials on both sides of the conveying surface, ensuring the accuracy of the conveying and preventing materials from leaving the conveying area. At the same time, the designed V-shaped material conveying channel facilitates material concentration.

[0008] Preferably, the adjusting frame includes an upright rod mounted upward on the frame, a cross-shaped fixing frame movably mounted on the upright rod, and mounting holes formed along the perpendicular direction of conveying. Mounting rods are provided at both ends of the back of the guide plate corresponding to the mounting holes. The adjusting frame can be adjusted according to the specifications of the actual conveyed items, facilitating better guidance of the conveyed items.

[0009] Preferably, the driving mechanism includes a servo drive motor rotatably mounted on the frame, the drive end of the servo drive motor being connected to a drive wheel, a drive roller being rotatably mounted on the frame at a position corresponding to the lower part of the roller shaft assembly, the drive roller being connected to the drive wheel, a fixed wheel being mounted on the roller shaft at a position corresponding to the drive roller, and a synchronous belt being wound between the fixed wheel and the drive roller, the synchronous belt being used to ensure synchronous rotation between each conveying roller group, thereby ensuring conveying efficiency.

[0010] Preferably, a tensioning wheel for adjusting the tension of the synchronous belt is rotatably arranged between the fixed wheel and the drive roller on the frame. The tensioning wheel is mounted on the frame via a tensioning shaft. The tensioning wheel is used to increase the tension of the synchronous belt and prevent the synchronous belt from failing due to wear during operation.

[0011] Preferably, engineering plastic bearings are provided at both ends of the roller shaft, and U-shaped grooves are provided on the frame corresponding to the positions of the engineering plastic bearings. The engineering plastic bearings have a certain degree of elasticity, which facilitates the quick installation of the roller shaft and subsequent maintenance.

[0012] Preferably, a belt pressing mechanism is also provided on the frame directly above the synchronous belt. The belt pressing mechanism includes multiple belt pressing shafts arranged side by side along the conveying direction. A belt pressing bearing is rotatably mounted on the belt pressing shaft. The belt pressing bearing is fitted into the synchronous belt. The belt pressing mechanism can ensure the conveying stability of the synchronous belt.

[0013] Preferably, the pressure belt bearing is a deep groove ball bearing, and multiple pressure belt bearings are arranged side by side along the axial direction of the pressure belt shaft. The pressure belt bearing is located at the middle position of two roller shafts on the frame. By using multiple pressure belt bearings and special transmission positions, the coordination between each transmission component is ensured, and the damage of a single component is avoided from affecting the overall synchronous transmission effect.

[0014] The present invention has the following effects:

[0015] 1. This solution features multiple sets of roller shaft assemblies arranged side-by-side along the conveying direction, forming a conveying surface. Each roller shaft assembly includes roller shafts rotatably mounted on a frame. Multiple conveying balls are rotatably mounted adjacent to each other along the axial direction on the roller shafts. The inner diameter of the conveying balls is slightly larger than that of the roller shafts, thus ensuring that adjacent conveying balls on a single roller shaft rotate relatively independently. When a conveying ball at a certain position is unable to rotate due to material influence, adjacent conveying balls can continue to rotate, thereby enabling a single conveying platform to achieve different conveying effects, with one side conveying while the other stops.

[0016] 2. In this design, the roller shaft is designed as a quick-release mechanism, specifically with engineering plastic bearings at both ends, which facilitates quick installation and subsequent maintenance of the roller shaft. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this conveyor.

[0018] Figure 2 This is a top view of the conveyor.

[0019] Figure 3 This is a sectional view at point AA;

[0020] Figure 4 This is the front view of the conveyor.

[0021] Figure 5 This is a schematic diagram of the pressing mechanism;

[0022] Figure 6 Schematic diagram of the drive unit;

[0023] Figure 7 This is a schematic diagram of the internal structure of the conveyor platform;

[0024] The components are: 1-frame, 2-roller shaft assembly, 3-material guiding mechanism, 4-adjusting frame, 5-belt pressing mechanism, 6-drive mechanism, 7-roller shaft, 8-conveying ball bearing, 9-fixed wheel, 10-engineering plastic bearing, 11-U-shaped groove, 12-material guiding plate, 13-upright pole, 14-cross fixing frame, 15-mounting rod, 16-servo drive motor, 17-drive wheel, 18-drive roller, 19-synchronous belt, 20-tensioning wheel, 21-tensioning shaft, 22-belt pressing shaft, 23-belt pressing bearing. Detailed Implementation

[0025] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] 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.

[0027] Example 1

[0028] like Figure 1-7As shown: A roller conveyor table includes a frame 1, which is constructed from spliced ​​profiles. Multiple sets of roller shaft assemblies 2 are mounted side-by-side along the conveying direction on the frame. The spacing between the roller shaft assemblies is selected according to the type of material being conveyed. The multiple sets of roller shaft assemblies form a conveying surface. Each roller shaft assembly includes roller shafts 7 rotatably mounted on the frame. Multiple conveying balls 8 are rotatably mounted adjacent to each other along the axial direction on the roller shafts to ensure relatively independent rotation between adjacent conveying balls on a single roller shaft. The conveying balls and the roller shafts are fitted with a clearance. The conveying balls 8 are made of nylon and are cylindrical in shape, providing a certain support surface; thus avoiding… The problem of material blockage in some areas causing blockage of the entire production line is addressed by a drive mechanism 6 installed on the frame to drive the rotation of the roller shaft assembly. The drive mechanism 6 includes a servo drive motor 16 rotatably mounted on the frame, with a drive wheel 17 connected to the drive end of the servo drive motor. A drive roller 18 is rotatably mounted on the frame below the roller shaft assembly, and the drive roller and drive wheel are connected by a belt drive. In this embodiment, a fixed wheel 9 is installed on the roller shaft corresponding to the drive roller position. A synchronous belt 19 is wound between the fixed wheel and the drive roller to ensure synchronous rotation between the conveying roller groups and guarantee conveying efficiency. A tensioning wheel 20 is also rotatably mounted on the frame between the fixed wheel and the drive roller to adjust the tension of the synchronous belt. The tensioning wheel is mounted on the frame via a tensioning shaft 21 to increase the tension of the synchronous belt and prevent belt failure due to wear during operation.

[0029] A material guiding mechanism 3 is installed on the frame directly below the conveying surface. The material guiding mechanism 3 includes guide plates 12 installed opposite each other, forming a V-shaped conveying channel between the guide plates 12. The guide plates are movably mounted on the frame via an adjusting frame 4. The adjusting frame 4 is used to adjust the relative distance and installation height between the two guide plates. The adjusting frame includes an upright rod 13 mounted upward on the frame, and a cross fixing frame 14 is movably mounted on the upright rod. The cross fixing frame has mounting holes perpendicular to the conveying direction. Mounting rods 15 are installed at both ends of the back of the guide plates corresponding to the mounting holes. The adjusting frame can be adjusted according to the specifications of the conveyed items to better guide the conveyed items. The material guiding mechanism is designed to guide materials on both sides of the conveying surface, ensuring the accuracy of the conveying and preventing materials from leaving the conveying area. At the same time, the designed V-shaped conveying channel facilitates the concentration of materials.

[0030] As a preferred embodiment, engineering plastic bearings 10 are installed at both ends of the roller shaft, and U-shaped slots 11 are installed on the frame corresponding to the positions of the engineering plastic bearings 10, which facilitates the quick installation of the roller shaft and subsequent maintenance.

[0031] In a preferred embodiment, a belt pressing mechanism 5 is also installed on the frame directly above the synchronous belt. The belt pressing mechanism includes multiple belt pressing shafts 22 installed side-by-side along the conveying direction. The belt pressing shafts are installed in elongated holes on the frame for easy height adjustment. Belt pressing bearings 23 are rotatably mounted on the belt pressing shafts. Shaft retaining rings are installed on both sides of the belt pressing bearings for fixation and limitation. The belt pressing bearings are installed in close contact with the synchronous belt. The belt pressing mechanism ensures the conveying stability of the synchronous belt. In another preferred embodiment, the belt pressing bearings are deep groove ball bearings. Multiple belt pressing bearings are installed side-by-side along the axial direction of the belt pressing shafts, positioned between two roller shafts on the frame. The use of multiple belt pressing bearings and a specific transmission position ensures coordination between the various transmission components, preventing damage to a single component from affecting the overall synchronous transmission effect.

[0032] The operating principle of this equipment is as follows: a servo drive motor provides driving force to rotate the drive wheel. A speed controller is installed on the frame to control the speed of the servo drive motor. The drive wheel drives the drive shaft to rotate via belt transmission. The drive roller on the drive shaft rotates synchronously. The drive roller then drives the synchronous belt. The synchronous belt is tensioned by a tensioning wheel. The synchronous belt then drives the fixed wheel on the roller shaft to rotate. The pressure belt shaft and pressure belt bearing on the frame press the synchronous belt to ensure that the synchronous belt drives multiple sets of roller shafts to rotate synchronously. The surface of the fixed wheel is treated to increase friction. The fixed wheel then drives the roller shaft to move. The movement of the roller shaft also drives the conveyor balls installed on its surface to move. The inner diameter of the conveyor balls is slightly larger than that of the roller shaft, which ensures that when some conveyor balls stop rotating, the remaining conveyor balls on the same roller shaft can continue to rotate.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A roller conveyor table, comprising a frame, characterized in that: Multiple sets of roller shaft assemblies are arranged side by side along the conveying direction on the frame. The roller shaft assemblies form a conveying surface. Each roller shaft assembly includes a roller shaft rotatably mounted on the frame. Multiple conveying balls are rotatably mounted adjacently on the roller shaft along the axial direction to ensure that adjacent conveying balls on a single roller shaft rotate relatively independently. The conveying balls are clearance-fitted with the roller shaft. The frame is also equipped with a drive mechanism for driving the roller shaft assembly to rotate. The conveying balls are made of nylon and are cylindrical in shape with a certain support surface. When the drive mechanism drives the roller shaft to rotate, each conveying ball rotates independently of the roller shaft or adjacent conveying balls to avoid local material blockage affecting the overall conveying. A material guiding mechanism is provided on the frame directly below the conveying surface. The material guiding mechanism includes oppositely arranged material guiding plates, which form a V-shaped material conveying channel. The material guiding plates are movably mounted on the frame via an adjusting frame, which is used to adjust the relative distance and installation height between the two material guiding plates. The drive mechanism includes a servo drive motor rotatably mounted on the frame, a drive wheel connected to the drive end of the servo drive motor, a drive roller rotatably mounted on the frame at a position below the roller shaft assembly, the drive roller and the drive wheel being connected by transmission, a fixed wheel mounted on the roller shaft at a position corresponding to the drive roller, and a synchronous belt wound between the fixed wheel and the drive roller.

2. The roller conveyor table according to claim 1, characterized in that: The adjusting frame includes an upright rod mounted upward on the frame, a cross-shaped fixing frame movably mounted on the upright rod, and mounting holes provided in the cross-shaped fixing frame perpendicular to the conveying direction. Mounting rods are provided at both ends of the back of the guide plate corresponding to the mounting holes.

3. The roller conveyor table according to claim 1, characterized in that: A tensioning wheel for adjusting the tension of the synchronous belt is rotatably arranged between the fixed wheel and the drive roller on the frame. The tensioning wheel is mounted on the frame via a tensioning shaft.

4. A roller conveyor table according to claim 1, characterized in that: Engineering plastic bearings are provided at both ends of the roller shaft, and U-shaped slots are provided on the frame corresponding to the positions of the engineering plastic bearings.

5. A roller conveyor table according to claim 1, characterized in that: A belt pressing mechanism is also provided on the frame directly above the synchronous belt. The belt pressing mechanism includes multiple belt pressing shafts arranged side by side along the conveying direction. A belt pressing bearing is rotatably mounted on the belt pressing shaft and is fitted into the synchronous belt.

6. A roller conveyor table according to claim 5, characterized in that: The pressure belt bearing is a deep groove ball bearing. Multiple pressure belt bearings are arranged side by side along the axial direction of the pressure belt shaft. The pressure belt bearing is located at the middle position of two corresponding roller shafts on the frame.

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