Belt conveyor integrated with righting function
By integrating a bidirectional lead screw and servo motor-driven pushing component onto the belt conveyor, combined with a distance sensor, precise alignment and centering of cartons are achieved, solving the problem of cartons not being centered during transport and improving sealing quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG TORIS INTELLIGENT MANUFACTURING CO LTD
- Filing Date
- 2025-08-08
- Publication Date
- 2026-06-05
AI Technical Summary
The existing belt conveyor lacks a centering function, which makes it impossible for the carton to be accurately centered during the conveying process, affecting the sealing quality and efficiency, especially when dealing with dimensional errors of different carton widths.
Employing a bidirectional lead screw and symmetrical threaded block structure, combined with a servo motor-driven push assembly and a distance sensor, it achieves precise alignment and centering of the carton. The bidirectional lead screw adjusts the spacing of the push assembly, while the servo motor drives the worm gear transmission to adjust the position of the rollers. The distance sensor measures the edge of the carton to ensure accurate delivery.
It effectively solves the problems of carton misalignment and sealing misalignment, improves the accuracy of carton conveying and sealing quality, adapts to dimensional errors of different carton widths, and ensures the smooth progress of the sealing process.
Smart Images

Figure CN224324657U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of belt conveyor technology, and in particular to a belt conveyor with integrated straightening function. Background Technology
[0002] In the automated carton sealing process, the conveyor belt system, as the core carrier of material transfer, plays a crucial role in accurately and continuously transporting the cartons to be sealed to the working area of the sealing equipment.
[0003] However, during the transport of cartons to the carton sealing machine, it was found that the lack of a function to straighten the carton position caused multiple cartons to be transported out of center in a straight line. As a result, when these out-of-center cartons were transported to the sealing machine, the opening position was difficult to align precisely with the sealing area of the sealing machine, which greatly affected the sealing quality and efficiency. In addition, there are unavoidable dimensional errors in the carton manufacturing process, and the width of different cartons often varies. This means that even with a straightening mechanism, some cartons will still be out of center when transported on the belt conveyor unit. Utility Model Content
[0004] Purpose of the utility model: The purpose of this utility model is to provide a belt conveyor with integrated straightening function to solve the above-mentioned shortcomings in the prior art.
[0005] Technical solution: A belt conveyor with integrated straightening function includes a main frame and a belt conveyor unit mounted on the main frame. A mounting base is provided on the main frame above the belt conveyor unit, and a straightening mechanism is provided on the mounting base.
[0006] The straightening mechanism includes a bidirectional lead screw rotatably connected to the mounting base. The bidirectional lead screw is provided with two symmetrically arranged threaded blocks, and each threaded block has a connecting seat at its bottom end.
[0007] Each of the connectors is equipped with a pushing component for pushing cartons with dimensional deviations to the center position of the belt conveyor unit.
[0008] As a further description of the above technical solution: each of the pushing components includes a first rotating shaft rotatably connected to a corresponding connecting seat, a first wheel seat is provided on the first rotating shaft, a second rotating shaft is rotatably connected to the first wheel seat, and a first long roller is provided on the second rotating shaft for pushing the carton;
[0009] The connecting seat is also equipped with a drive assembly for driving the first rotating shaft to rotate.
[0010] As a further description of the above technical solution: the first long roller is provided with prefabricated grooves arranged in a circular array, and each prefabricated groove is rotatably connected to a third rotating shaft, and the third rotating shaft is provided with a pulley.
[0011] As a further description of the above technical solution: the drive assembly includes a motor mount respectively disposed on the connecting seat, a servo motor disposed on the motor mount, a worm gear disposed at the output end of the servo motor, the worm gear being meshed with a worm wheel, and the worm wheel being fixedly connected to a first rotating shaft.
[0012] As a further description of the above technical solution: the main frame is also provided with support frames located on both sides of the belt conveyor unit, and the support frames are provided with distance measuring sensors for measuring the position of the two sides of the carton to the edge of the belt conveyor unit.
[0013] As a further description of the above technical solution: an anti-tipping mechanism is installed on the bottom surface of the mounting base. The anti-tipping mechanism includes a sliding shaft, on which a second wheel seat is slidably connected, and on which a fourth rotating shaft is rotatably connected, and on which a second long roller is provided.
[0014] As a further description of the above technical solution: a spring is sleeved on the outer side of the slide shaft, located between the mounting base and the slide shaft.
[0015] As a further description of the above technical solution: the mounting base is provided with a sliding groove, and both threaded blocks are located inside the sliding groove.
[0016] Beneficial effects: By using a two-way lead screw and symmetrical threaded block structure, turning the handwheel can drive the two threaded blocks and the connecting seat to move in opposite directions, quickly adjusting the distance between the two pushing components to be slightly larger than the width of the carton, providing a basic centering space for cartons of different widths, and solving the initial positioning problem caused by the difference in carton width;
[0017] In addition, the push component on the connector is driven by a servo motor to drive the worm gear transmission, which drives the first long roller to rotate to adjust its position. Combined with the distance sensor to measure the position of the two sides of the carton, it can accurately push the carton that has deviated from the center due to size error, ensuring centered delivery. This effectively solves the problems of carton misalignment and sealing misalignment caused by the lack of a straightening function. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of a belt conveyor with an integrated straightening function proposed in this utility model;
[0019] Figure 2 This is a cross-sectional view of the mounting base of this utility model;
[0020] Figure 3 This is a three-dimensional structural diagram of the straightening mechanism of this utility model;
[0021] Figure 4 for Figure 1 Enlarged view of point A in the middle;
[0022] Figure 5 for Figure 2 Enlarged view of point B in the middle;
[0023] Figure 6 for Figure 3 Enlarged diagram of point C in the middle.
[0024] Legend:
[0025] 1. Main frame; 2. Belt conveyor unit; 3. Mounting base; 31. Slide groove; 4. Straightening mechanism; 41. Two-way lead screw; 42. Threaded block; 43. Handwheel; 44. Connecting seat; 45. Pushing assembly; 451. No. 1 rotating shaft; 452. No. 1 wheel seat; 453. No. 2 rotating shaft; 454. No. 1 long roller; 4541. No. 3 rotating shaft; 4542. Pulley; 46. Drive assembly; 461. Motor base; 462. Servo motor; 463. Worm gear; 464. Worm wheel; 5. Support frame; 51. Distance sensor; 6. Anti-tipping mechanism; 61. Sliding shaft; 62. Spring; 63. No. 2 wheel seat; 64. No. 4 rotating shaft; 65. No. 2 long roller. Detailed Implementation
[0026] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0027] Reference Figures 1-6 A belt conveyor with an integrated straightening function includes a main frame 1 and a belt conveyor unit 2 mounted on the main frame 1 for conveying cartons to a carton sealing machine. This is an existing product, specifically consisting of a conveyor belt mounted on the main frame 1 and a drive motor for rotating the conveyor belt (details omitted here). A mounting base 3 is provided on the main frame 1, located above the belt conveyor unit 2. A straightening mechanism 4 is mounted on the mounting base 3.
[0028] The straightening mechanism 4 includes a bidirectional lead screw 41 rotatably connected to the mounting base 3. It should be noted that the bidirectional lead screw 41 is a common product on the market, consisting of two lead screw sections with opposite thread directions, enabling the two threaded blocks 42 on the bidirectional lead screw 41 to move in opposite directions. A handwheel 43 is provided at the end of the bidirectional lead screw 41, and rotating the handwheel 43 drives the bidirectional lead screw 41 to rotate. Two symmetrically arranged threaded blocks 42 are threadedly connected to the bidirectional lead screw 41, and a connecting seat 44 is provided at the bottom end of each threaded block 42.
[0029] Each of the connecting seats 44 is provided with a pushing component 45, which is used to push the carton with size deviation to the center position of the belt conveyor unit 2.
[0030] Specifically, by rotating the handwheel 43, the bidirectional lead screw 41 is driven to rotate. The two threaded blocks 42 on it are located in two opposite threaded areas. Therefore, the two threaded blocks 42 can move in opposite directions, thereby driving the connecting seat 44 below to move and adjusting the connecting seat 44 to a suitable position. This ensures that all cartons within the error range can pass through and that the cartons can be placed in the area between the two connecting seats 44 and moved in the center. This avoids the problem of the carton opening not being aligned with the sealing area of the sealing machine during the sealing process, which would lead to sealing failure. In addition, since there are errors in the processing of the cartons, the size of each carton has a certain error. Therefore, the pushing component 45 can push the carton to the center position of the belt conveyor unit 2.
[0031] Furthermore, each of the pushing components 45 includes a first rotating shaft 451 rotatably connected to a corresponding connecting seat 44, a first wheel seat 452 is provided on the first rotating shaft 451, a second rotating shaft 453 is rotatably connected to the first wheel seat 452, and a first long roller 454 is provided on the second rotating shaft 453 for pushing the carton.
[0032] The connecting seat 44 is also provided with a drive assembly 46 for driving the first rotating shaft 451 to rotate.
[0033] Specifically, the drive assembly 46 drives the first rotating shaft 451 to rotate, the first rotating shaft 451 drives the first wheel seat 452 to rotate, the first wheel seat 452 drives the first long roller 454 to rotate, and there is a distance change, so it can push small-sized cartons to the center position, improving the adaptability of the straightening mechanism 4.
[0034] Furthermore, the first long roller 454 is provided with pre-made grooves arranged in a circular array. Each pre-made groove is rotatably connected to a third rotating shaft 4541. The third rotating shaft 4541 is provided with a pulley 4542. When the carton passes through the first long roller 454, the carton is in contact with one of the pulleys 4542, which can reduce the friction between the carton and the pulley and prevent the carton from being deviated after leaving the area of the first long roller 454.
[0035] Furthermore, the drive assembly 46 includes a motor mount 461 respectively disposed on the connecting seat 44, a servo motor 462 disposed on the motor mount 461, a worm gear 463 disposed at the output end of the servo motor 462, the worm gear 463 being meshed with a worm wheel 464, and the worm wheel 464 being fixedly connected to a first rotating shaft 451, so that the servo motor 462 can drive the worm gear 463 and the worm wheel 464 to rotate, thereby driving the first rotating shaft 451 to rotate.
[0036] Furthermore, the main frame 1 is also provided with support frames 5 located on both sides of the belt conveyor unit 2. The support frames 5 are provided with distance sensors 51, which are used to measure the position of the two sides of the carton to the edge of the belt conveyor unit 2. The mounting base 3 is provided with an external signal control unit module that is used in conjunction with the distance sensors 51. As this is an existing method, its control process and the electronic components it includes will not be described in detail, only its use will be discussed. The distance sensors 51, the signal control unit module and the servo motor 462 are connected by a signal, which enables the measurement result of the distance sensors 51 to be fed back to the signal control unit module. After signal processing, the control drive component 46 drives the push component 45 to operate, pushing the carton to the center position.
[0037] Furthermore, an anti-tipping mechanism 6 is installed on the bottom surface of the mounting base 3. The anti-tipping mechanism 6 includes a sliding shaft 61, on which a second wheel seat 63 is slidably connected, and on which a fourth rotating shaft 64 is rotatably connected. A second long roller 65 is provided on the fourth rotating shaft 64, which can press down the top surface of the carton and prevent the carton from tipping over when the push component 45 pushes the carton. It should also be noted that if it is necessary to transport cartons of different sizes, a lifting mechanism can be added between the mounting base 3 and the anti-tipping mechanism 6 to adjust the original height of the anti-tipping mechanism 6.
[0038] Furthermore, a spring 62 is sleeved on the outer side of the sliding shaft 61, located between the mounting base 3 and the sliding shaft 61. The elastic potential energy of the spring 62 is used to apply downward pressure to the carton, and the spring 62 can adapt to the height of multiple cartons when there are errors in their height.
[0039] Furthermore, the mounting base 3 is provided with a sliding groove 31, and both threaded blocks 42 are located inside the sliding groove 31, which can play a limiting role and prevent the threaded blocks 42 from rotating with the bidirectional lead screw 41.
[0040] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A belt conveyor with integrated straightening function, comprising a main frame (1) and a belt conveyor unit (2) disposed on the main frame (1), characterized in that, The main frame (1) is provided with a mounting base (3) located above the belt conveyor unit (2), and the mounting base (3) is provided with a straightening mechanism (4), wherein, The straightening mechanism (4) includes a bidirectional lead screw (41) rotatably connected to the mounting base (3). The bidirectional lead screw (41) is provided with two symmetrically arranged threaded blocks (42), and each threaded block (42) has a connecting seat (44) at its bottom end. Each of the connecting seats (44) is provided with a pushing component (45) for pushing cartons with dimensional deviations to the central position of the belt conveyor unit (2).
2. A belt conveyor with integrated straightening function according to claim 1, characterized in that, Each of the push components (45) includes a first rotating shaft (451) rotatably connected to a corresponding connecting seat (44), a first wheel seat (452) is provided on the first rotating shaft (451), a second rotating shaft (453) is rotatably connected to the first wheel seat (452), and a first long roller (454) is provided on the second rotating shaft (453) for pushing the carton; The connecting seat (44) is also provided with a drive assembly (46) for driving the first rotating shaft (451) to rotate.
3. A belt conveyor with integrated straightening function according to claim 2, characterized in that, The first long roller (454) is provided with prefabricated grooves arranged in a ring array. Each prefabricated groove is rotatably connected to a third rotating shaft (4541), and a pulley (4542) is provided on the third rotating shaft (4541).
4. A belt conveyor with integrated straightening function according to claim 3, characterized in that, The drive assembly (46) includes a motor mount (461) respectively disposed on a connecting seat (44), a servo motor (462) is disposed on the motor mount (461), a worm gear (463) is disposed at the output end of the servo motor (462), the worm gear (463) is meshed with a worm wheel (464), and the worm wheel (464) is fixedly connected to a first rotating shaft (451).
5. A belt conveyor with integrated straightening function according to claim 1, characterized in that, The main frame (1) is also provided with support frames (5) located on both sides of the belt conveyor unit (2). The support frames (5) are provided with distance sensors (51) for measuring the position of the two sides of the carton to the edge of the belt conveyor unit (2).
6. A belt conveyor with integrated straightening function according to claim 1, characterized in that, An anti-rollover mechanism (6) is installed on the bottom surface of the mounting base (3). The anti-rollover mechanism (6) includes a sliding shaft (61), a second wheel seat (63) is slidably connected to the sliding shaft (61), and a fourth rotating shaft (64) is rotatably connected to the second wheel seat (63). A second long roller (65) is provided on the fourth rotating shaft (64).
7. A belt conveyor with integrated straightening function according to claim 6, characterized in that, A spring (62) is sleeved on the outside of the slide shaft (61) between the mounting base (3) and the slide shaft (61).
8. A belt conveyor with integrated straightening function according to claim 1, characterized in that, The mounting base (3) has a groove (31) and the two threaded blocks (42) are located inside the groove (31).