Automatic weighing roller for aluminium sheet transport

Abstract

An automatic weighing roller for aluminum plate transportation, including conveying roller, conveying motor is arranged below conveying roller and is used for driving conveying roller, conveying roller includes transportation section and weighing section, connecting frame is arranged below weighing section, lifting drive assembly is installed on connecting frame, lifting drive assembly is fixedly connected with base plate, weighing scale is arranged on base plate, comb support plate is installed on top of weighing scale, protruding part of comb support plate is embedded in the gap of two rollers of conveying roller alternately, first photosensitive sensor and second photosensitive sensor are arranged side by side on the support plate below the end of weighing section, and the lateral spacing of first photosensitive sensor and second photosensitive sensor is less than the width of conveying aluminum plate. The utility model aims at avoiding the problems of low production efficiency, unstable product quality and high safety hidden trouble caused by offline weighing.

Description

Technical Field

[0001] This utility model relates to the field of material conveying technology, specifically an automatic weighing roller conveyor for transporting aluminum plates. Background Technology

[0002] In the aluminum sheet processing and manufacturing industry, finished aluminum sheets formed from aluminum coils through processes such as leveling and cutting are widely used in aerospace, automotive manufacturing, and architectural decoration. Since the specifications, thickness, and surface quality of the aluminum sheets directly affect the performance of the final product, strict quality control and logistics sorting are required during production. Weight data, as a key parameter, is not only directly related to raw material cost accounting and logistics pricing, but also plays a central role in the quality traceability system, ensuring that products meet industry standards and customer needs.

[0003] Currently, the industry commonly uses a relatively traditional and inefficient "offline weighing" method for weighing aluminum plates. The typical operating procedure is as follows: When the aluminum plate moves to the weighing stage on a continuously running roller conveyor, the operator must pause the conveyor's operation and drive a forklift to transfer the aluminum plate (usually stacked in multiple pieces) from the conveyor to an independent weighbridge. After completing the static weighing and recording the data on the weighbridge, the operator then drives the forklift back to the transport vehicle or stacking rack.

[0004] This offline weighing method, which relies on manual forklift handling, not only interrupts the continuous production process and reduces production efficiency, but also easily causes the aluminum plate edges to bend due to frequent handling, affecting the stability of product quality. At the same time, the continuous operation of forklifts also increases safety hazards in the workshop. Utility Model Content

[0005] The present invention aims to provide an automatic weighing roller conveyor for transporting aluminum plates, so as to avoid the problems of low production efficiency, unstable product quality and high safety hazards caused by offline weighing.

[0006] To solve the above technical problems, the specific solution adopted by this utility model is as follows: It includes a conveyor roller conveyor, with a conveyor motor below the conveyor roller conveyor for driving the conveyor roller conveyor. The conveyor roller conveyor includes a transport section and a weighing section. A connecting frame is provided below the weighing section, and a lifting drive assembly is installed on the connecting frame. The lifting drive assembly is fixedly connected to a base plate. The lifting drive assembly drives the base plate to reciprocate vertically. A weighing scale is provided on the base plate, and a comb-shaped support plate is installed on the top of the weighing scale. The protrusions of the comb-shaped support plate are alternately embedded in the gap between the two rollers of the conveyor roller conveyor. A first photosensitive sensor and a second photosensitive sensor are arranged side by side on the support plate below the end of the weighing section. The lateral distance between the first photosensitive sensor and the second photosensitive sensor is smaller than the width of the conveying aluminum plate. When the aluminum plate completely covers the end of the weighing section, it simultaneously blocks the first and second photosensitive sensors. The first photosensitive sensor is communicatively connected to the lifting drive assembly to trigger the lifting operation, and the second photosensitive sensor is communicatively connected to the conveyor motor to control the start and stop of the conveying.

[0007] As a further optimization of the automatic weighing roller conveyor for transporting aluminum plates: the lifting drive assembly includes a lifting motor, a worm gear reducer and a lifting screw. The output shaft of the lifting motor and the worm of the worm gear reducer are connected by a coupling. The worm wheel of the worm gear reducer is coaxially fixed with the lifting screw. The lifting screw passes through the base plate, the weighing scale and the support plate. A movable nut is provided on the lifting screw. The movable nut is fixedly connected to the base plate. The lifting motor is communicatively connected to the first photosensitive sensor.

[0008] As a further optimization of the automatic weighing roller conveyor for transporting aluminum plates: the connecting frame is equipped with guide columns, which are slidably inserted into the base plate through linear bearings, and the top of the guide columns are connected to the conveyor roller conveyor.

[0009] As a further optimization of the automatic weighing roller conveyor for transporting aluminum plates: a limit block is provided at the top of the guide column to limit the upward stroke of the substrate.

[0010] As a further optimization of the automatic weighing roller conveyor for transporting aluminum plates: the lifting drive assembly is a cylinder, hydraulic cylinder or electric push rod.

[0011] As a further optimization of the automatic weighing roller conveyor for transporting aluminum plates: the connecting frame is fixedly connected to the conveyor roller conveyor.

[0012] As a further optimization of the automatic weighing roller conveyor used for transporting aluminum plates: a vibration damping pad is provided at the fixed connection between the connecting frame and the conveyor roller conveyor.

[0013] As a further optimization of the automatic weighing roller conveyor for transporting aluminum plates: the bottom of the connecting frame is equipped with a height-adjustable support column.

[0014] As a further optimization of the automatic weighing roller conveyor for transporting aluminum plates: the weighing scale is equipped with a level, and a level adjustment bolt is provided between the weighing scale and the base plate to calibrate the levelness of the weighing scale.

[0015] As a further optimization of the automatic weighing roller conveyor for transporting aluminum plates: side baffles are provided on both sides of the conveying path of the conveyor roller conveyor.

[0016] Beneficial Effects: This utility model achieves seamless switching between the transport and weighing states of the conveyor rollers by designing a structure in which the protruding parts of the comb-shaped support plate alternately engage with the conveyor rollers. When the aluminum plate is transported to the weighing section, dual photosensitive sensors control the lifting mechanism to rise, lifting the aluminum plate for weighing, while simultaneously pausing the conveyor rollers to avoid vibrations affecting weighing accuracy. After weighing, the lifting mechanism descends to transfer the aluminum plate onto the conveyor rollers, ending the pause and restarting transport to the next station, thus achieving rapid, accurate, and automated weighing of the aluminum plate during transport.

[0017] The design of this utility model with dual photosensitive sensors ensures that the weighing operation is triggered only when the aluminum plate is fully in the weighing section, effectively avoiding inaccurate weighing caused by the aluminum plate not being in place. At the same time, the collaborative detection of the dual photosensitive sensors improves the automation of the weighing process, significantly enhances the efficiency of the production line and the control capability of product quality, and reduces safety hazards in the production workshop.

[0018] This utility model enhances the overall rigidity of the structure by designing a connecting frame that is fixedly connected to the conveyor roller frame and an adjustable support column at the bottom of the connecting frame. This prevents the conveyor roller and the connecting frame from shifting during operation, which would prevent the protruding part of the support plate from being unable to rise and fall from the gap between the rollers of the conveyor roller. It also enhances the adaptability of the equipment to different ground surfaces and further improves the efficiency of the production line. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the automatic weighing roller conveyor used for transporting aluminum plates according to this utility model;

[0020] Figure 2 This is a cross-sectional view of the conveyor roller conveyor for transporting aluminum plates under weighing conditions, according to the present invention.

[0021] Figure 3 This is a schematic diagram of the connecting frame and its auxiliary components according to the present invention;

[0022] The markings in the diagram are: 1. Conveyor roller, 2. Side baffle, 3. Weighing section, 4. Pallet, 5. Aluminum plate, 6. Conveyor motor, 7. Transport section, 8. Anti-vibration pad, 9. Guide column, 10. Limit block, 11. Adjusting bolt, 12. Connecting frame, 13. Support column, 14. Worm gear reducer, 15. Lifting screw, 16. Lifting drive assembly, 17. Coupling, 18. Lifting motor, 19. Base plate, 20. Weighing scale, 21. First photosensitive sensor, 22. Support plate, 23. Second photosensitive sensor, 24. Level, 25. Linear bearing, 26. Moving nut. Detailed Implementation

[0023] like Figure 1 As shown, an automatic weighing roller conveyor for transporting aluminum plates includes a conveyor roller conveyor 1 and a conveyor motor 6 for driving the conveyor roller conveyor 1. The conveyor roller conveyor 1 includes a transport section 7 and a weighing section 3. The processed aluminum plates 5 are stacked on a pallet 4, which is placed on the conveyor roller conveyor 1. Under the action of the conveyor motor 6, the pallet 4 loaded with aluminum plates 5 is transported through the transport section 7 of the conveyor roller conveyor 1 to the weighing section 3 for weighing.

[0024] Side baffles 2 are provided on both sides of the conveying path of the conveying roller 1. The side baffles 2 on both sides form a guide channel to ensure that the aluminum plate 5 moves along the predetermined conveying path so that it can accurately reach and cover the photosensitive sensor area at the end of the weighing section 3.

[0025] A connecting frame 12 is provided below the weighing section 3. The connecting frame 12 provides a rigid support platform for the lifting system and the weighing system, bearing the weight of the lifting system and the load during weighing.

[0026] like Figure 2 As shown, a lifting drive assembly 16 is installed on the connecting frame 12. The lifting drive assembly 16 drives the weighing mechanism to lift vertically, thereby realizing the conversion between the conveying state and the weighing state of the conveying roller 1.

[0027] The lifting drive assembly 16 includes a lifting motor 18, which provides the original power required for lifting; a worm gear reducer 14, which reduces the speed of the lifting motor 18 while significantly increasing the output torque; and a self-locking characteristic (the worm can drive the worm wheel, but the worm wheel cannot drive the worm) that enhances the weighing stability; and a lifting screw 15, which converts the rotational motion output by the worm gear reducer 14 into linear lifting motion.

[0028] The output shaft of the lifting motor 18 and the worm of the worm gear reducer 14 are connected by a coupling 17. The worm wheel of the worm gear reducer 14 is connected to the lifting screw 15. The lifting motor 18 drives the worm to rotate. The worm meshes with the worm wheel and transmits motion and power to the worm wheel shaft. The output shaft of the worm gear reducer 14 transmits power to the lifting screw 15 through the coupling 17. The rotation of the lifting screw 15 drives the movable nut 26 that cooperates with the lifting screw 15 to make linear motion, thereby pushing the base plate 19 to rise or fall.

[0029] A base plate 19 is fixed to the top of the lifting screw 15. The base plate 19 serves as a rigid platform on top of the lifting screw 15, supporting components such as the weighing scale 20 and the support plate 22, and is the direct actuator for the lifting motion. The weighing scale 20 is mounted on the base plate 19. The weighing scale 20 is the core weighing element, bearing the weight of the aluminum plate 5 through the support plate 22 and converting the weight of the aluminum plate 5 into a readable electrical signal (weight value). A comb-shaped support plate 22 is installed on the top of the weighing scale 20. The protrusions of the comb-shaped support plate 22 alternately embed into the gap between the two rollers of the conveyor roller 1. The comb-shaped structure matches the roller spacing of the conveyor roller 1. In the weighing state (lifted position), the support plate 22 completely lifts the aluminum plate 5 located above the weighing section 3, causing it to detach from the roller surface of the conveyor roller 1. In the conveying state (lowered position), the protrusions of the support plate 22 embed into the roller gap. The highest surface of the protrusions of the support plate 22 is lower than the outer surface of the roller, so as not to affect the normal rotation of the roller and the conveying of the aluminum plate 5.

[0030] like Figure 3 As shown, the weighing scale 20 is equipped with a level 24, which visually displays the current tilt degree of the weighing scale 20. During equipment installation, debugging, or maintenance, the level 24 assists operators in determining whether the weighing scale 20 is level. A leveling bolt 11 for calibrating the levelness of the weighing scale 20 is provided between the weighing scale 20 and the base plate 19.

[0031] The connecting frame 12 is fixedly connected to the frame of the conveyor roller 1, which enhances the overall rigidity of the structure and prevents the conveyor roller 1 and the connecting frame 12 from shifting due to mechanical vibration during operation. This would cause the protruding part of the support plate 22 to rub and collide with the rollers of the conveyor roller 1, making it impossible for the support plate 22 to rise and fall normally from the gap between the rollers of the conveyor roller 1, thus affecting the weighing of the aluminum plate 5.

[0032] A vibration damping pad 8 is provided at the fixed connection between the connecting frame 12 and the conveyor roller 1 frame. The vibration damping pad 8 reduces the vibration between the connecting frame 12 and the conveyor roller 1 caused by mechanical action, thereby enhancing the stability of equipment operation.

[0033] The bottom of the connecting frame 12 is equipped with a height-adjustable support column 13. The support column 13 provides a stable working environment for the connecting frame 12, while enhancing the equipment's adaptability to different ground surfaces and further improving the efficiency of the production line.

[0034] The connecting frame 12 is equipped with guide posts 9. The guide posts 9 prevent the substrate 19 from flipping or tilting due to uneven force. The guide posts 9 are slidably inserted into the substrate 19 through linear bearings 25. The top of the guide posts 9 is connected to the frame of the conveyor roller 1. The guide posts 9 provide precise vertical guidance for the lifting and lowering movement of the substrate 19 and the weighing scale 20 and support plate 22 installed on it, ensuring smooth and linear operation during the lifting process and preventing the substrate 19 from tilting, jamming, or shaking due to the shift of the center of gravity of the load aluminum plate 5. At the same time, when the aluminum plate 5 may have a slight tendency to shift laterally or when there is external interference during the lifting process, the guide posts 9 can withstand lateral forces and protect the lifting screw 15 from bending stress. In order to ensure that the substrate 19 is subjected to uniform force, guide posts 9 are provided at all four corners of the substrate 19 in this embodiment.

[0035] The top of the guide column 9 is provided with a limiting block 10. The function of the limiting block 10 is to mechanically limit the maximum height of the base plate 19 during the rising process, to prevent the lifting mechanism from colliding with the concave part of the support plate 22 and the conveying roller due to excessive lifting, and at the same time to prevent the nut of the lifting screw 15 from disengaging from the effective thread area of ​​the screw.

[0036] A first photosensitive sensor 21 and a second photosensitive sensor 23 are arranged side by side on the support plate 22 below the end of the weighing section 3 of the conveying roller. The lateral distance between the first photosensitive sensor 21 and the second photosensitive sensor 23 is smaller than the width of the conveying aluminum plate 5. The side-by-side arrangement and the small lateral distance are to trigger the first photosensitive sensor and the second photosensitive sensor simultaneously when the aluminum plate 5 is conveyed to the end of the weighing section 3.

[0037] When the aluminum plate 5 completely covers the end of the weighing section 3, it simultaneously blocks the first photosensitive sensor 21 and the second photosensitive sensor 23. The first photosensitive sensor 21 releases an electrical signal to trigger the controller, which drives the lifting motor 18 to perform lifting operations. Similarly, the second photosensitive sensor 23 releases an electrical signal to the controller, which controls the start and stop of the conveyor motor 6. When the aluminum plate 5 blocks both sensors simultaneously, the first photosensitive sensor 21 triggers the lifting motor 18 to start, beginning to lift the weighing mechanism for weighing. The second photosensitive sensor 23 triggers the conveyor motor 6 to pause, ensuring that the aluminum plate 5 remains stationary at the weighing position. After the aluminum plate 5 has finished weighing, the lifting motor 18 drives the weighing mechanism to reset. When the aluminum plate 5 is placed back on the conveyor roller 1, the conveyor motor 6 pauses and restarts, driving the conveyor roller 1 to transport the aluminum plate 5 to the next workstation.

[0038] This utility model discloses a method for using an automatic weighing roller conveyor for transporting aluminum plates: The weighing scale 20 is calibrated to a horizontal level using a level 24 and a leveling bolt 11, and then the weighing scale 20 is tare and zeroed. The conveyor motor 6 is started, transporting the aluminum plate 5 from the transport section 7 of the conveyor roller conveyor 1 to the weighing section 3. When the aluminum plate 5 completely covers the end of the weighing section 3, it simultaneously blocks the first photosensitive sensor 21 and the second photosensitive sensor 23. The second photosensitive sensor 23 controls the conveyor motor 6 to stop, and the first photosensitive sensor 21 controls the lifting motor 18 to start. The lifting motor 18 drives the worm gear reducer 14 to rotate the lifting screw 15, thereby lifting the base plate 19. The protrusion of the support plate 22 lifts the aluminum plate 5, causing it to detach from the roller surface, and the weighing scale 20 collects weight data. After weighing is completed, the lifting motor 18 reverses, driving the support plate 22 to reset, causing the aluminum plate 5 to fall back onto the surface of the conveyor roller conveyor 1. The conveyor motor 6 pauses, ends, and restarts, driving the conveyor roller conveyor 1 to transport the aluminum plate 5 to the next station.

Claims

1. An automatic weighing roller conveyor for transporting aluminum plates, characterized in that: The system includes a conveyor roller conveyor (1), a conveyor motor (6) for driving the conveyor roller conveyor (1) is provided below the conveyor roller conveyor (1), the conveyor roller conveyor (1) includes a transport section (7) and a weighing section (3), a connecting frame (12) is provided below the weighing section (3), a lifting drive assembly (16) is installed on the connecting frame (12), the lifting drive assembly (16) is fixedly connected to the base plate (19), the lifting drive assembly (16) drives the base plate (19) to reciprocate in the vertical direction, a weighing scale (20) is provided on the base plate (19), a comb-shaped support plate (22) is installed on the top of the weighing scale (20), the protrusions of the comb-shaped support plate (22) are alternately embedded in the conveyor roller conveyor (7), the weighing section (3) is provided below the weighing section (3), a connecting frame (12) is provided below the connecting frame (12), a lifting drive assembly (16) is installed on the connecting frame (12), the lifting drive assembly (16) is fixedly connected to the base plate (19), the lifting drive assembly (16) drives the base plate (19) to reciprocate in the vertical direction, a weighing scale (20) is provided on the base plate (19), a comb-shaped support plate (22) is installed on the top of the weighing scale (20), the protrusions of the comb-shaped support plate (22) are alternately embedded in the conveyor roller conveyor (7), the weighing section (7) is provided below the conveyor roller conveyor (6), the conveyor roller conveyor (1) includes a transport section (7) and a weighing section (3), a weighing section (7), a weighing section (8), a weighing section (9), a weighing section (10), a weighing section (10), a weighing section (10), a weighing section (10), a weighing section (10), a weighing section (10), a weighing section (10), a weigh The gap between the two rollers of the conveying roller conveyor (1) is provided on the support plate (22) below the end of the weighing section (3), where a first photosensitive sensor (21) and a second photosensitive sensor (23) are arranged in parallel. The lateral distance between the first photosensitive sensor (21) and the second photosensitive sensor (23) is smaller than the width of the conveying aluminum plate (5). When the aluminum plate (5) completely covers the end of the weighing section (3), it simultaneously blocks the first photosensitive sensor (21) and the second photosensitive sensor (23). The first photosensitive sensor (21) is connected to the lifting drive assembly (16) to trigger the lifting operation, and the second photosensitive sensor (23) is connected to the conveying motor (6) to control the start and stop of the conveying.

2. The automatic weighing roller conveyor for transporting aluminum plates according to claim 1, characterized in that: The lifting drive assembly (16) includes a lifting motor (18), a worm gear reducer (14), and a lifting screw (15). The output shaft of the lifting motor (18) and the worm of the worm gear reducer (14) are connected by a coupling (17). The worm wheel of the worm gear reducer (14) is coaxially fixed with the lifting screw (15). The lifting screw (15) passes through the base plate (19), the weighing scale (20), and the support plate (22). A movable nut (26) is provided on the lifting screw (15). The movable nut (26) is fixedly connected to the base plate (19). The lifting motor (18) is communicatively connected to the first photosensitive sensor (21).

3. An automatic weighing roller conveyor for transporting aluminum plates according to claim 2, characterized in that: The connecting frame (12) is provided with a guide post (9), which is slidably inserted in the base plate (19) through a linear bearing (25). The top of the guide post (9) is connected to the conveyor roller (1).

4. An automatic weighing roller conveyor for transporting aluminum plates according to claim 3, characterized in that: The guide post (9) is provided with a limiting block (10) on its upper part. The limiting block (10) is used to limit the upward stroke of the substrate (19).

5. An automatic weighing roller conveyor for transporting aluminum plates according to claim 1, characterized in that: The lifting drive assembly (16) is a cylinder, a hydraulic cylinder, or an electric push rod.

6. An automatic weighing roller conveyor for transporting aluminum plates according to claim 1, characterized in that: The connecting frame (12) is fixedly connected to the conveyor roller (1).

7. An automatic weighing roller conveyor for transporting aluminum plates according to claim 6, characterized in that: A vibration damping pad (8) is provided at the fixed connection between the connecting frame (12) and the conveyor roller (1).

8. An automatic weighing roller conveyor for transporting aluminum plates according to claim 1, characterized in that: The bottom of the connecting frame (12) is provided with a height-adjustable support column (13).

9. An automatic weighing roller conveyor for transporting aluminum plates according to claim 1, characterized in that: The weighing scale (20) is equipped with a level (24), and a level adjustment bolt (11) is provided between the weighing scale (20) and the base plate (19) to calibrate the levelness of the weighing scale (20).

10. An automatic weighing roller conveyor for transporting aluminum plates according to claim 1, characterized in that: Side baffles (2) are provided on both sides of the conveying path of the conveying roller conveyor (1).

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