Double-belt conveying mechanism

Abstract

The invention provides a double-belt conveying mechanism which comprises a rack, a first supporting shaft, a second supporting shaft, a first driving shaft, a second driving shaft, a first motor and a second motor are arranged on the rack, a first driven roller and a second driven roller are rotationally arranged on the first supporting shaft, and a third driven roller and a fourth driven roller are rotationally arranged on the second supporting shaft; a first driving roller is arranged on the first driving shaft, and a second driving roller is arranged on the second driving shaft; the first motor is in transmission connection with the first driving shaft; the second motor is in transmission connection with the second driving shaft; a first belt is arranged on the first driving roller, the first driven roller and the third driven roller; the second driving roller, the second driven roller and the fourth driven roller are sleeved with a second belt in a surrounding mode. According to the double-belt conveying mechanism, on the premise that the first belt and the second belt jointly use the first supporting shaft and the second supporting shaft, independent driving of the first belt and the second belt can still be achieved, and due to the parallel arrangement of the first belt and the second belt, the occupied space is remarkably saved.

Description

Technical Field

[0001] This invention relates to the field of automation equipment technology, specifically a double belt conveyor mechanism. Background Technology

[0002] In automated production lines, belt conveyors are the core components for transporting materials or products. When two different types, specifications, or process requirements of products need to be transported simultaneously, existing technologies typically employ two completely independent belt conveyor systems. This results in a loose overall layout, large space occupation, high manufacturing costs, and difficulty in achieving independent, high-precision motion control of the two belts (such as different running directions and conveying step distances) within a compact space. Therefore, developing an integrated conveyor system that is compact, cost-optimized, and capable of independent, precise drive of two belts is of significant practical importance. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a dual-belt conveyor mechanism.

[0004] The dual-belt conveyor mechanism provided by the present invention includes: frame; A first support shaft and a second support shaft are arranged in parallel on the frame. A first driven roller and a second driven roller are rotatably arranged on the first support shaft. A third driven roller corresponding to the first driven roller and a fourth driven roller corresponding to the second driven roller are rotatably arranged on the second support shaft. The first drive shaft and the second drive shaft are rotatably mounted on the frame and are parallel to the first support shaft and the second support shaft. The first drive shaft is provided with a first drive roller corresponding to the first driven roller and the third driven roller, and the second drive shaft is provided with a second drive roller corresponding to the second driven roller and the fourth driven roller. A first motor and a second motor are fixedly mounted on the frame. The first motor is driven by the first drive shaft, and the second motor is driven by the second drive shaft. The first belt is wrapped around the first drive roller, the first driven roller, and the third driven roller; The second belt is wrapped around the second drive roller, the second driven roller, and the fourth driven roller.

[0005] Furthermore, the dual-belt conveyor mechanism also includes a tensioning mechanism, which comprises: The first tensioning shaft, the second tensioning shaft, and the third tensioning shaft are all arranged parallel to the first support shaft on the frame and are all located outside the first belt and the second belt. The first tensioning shaft is located between the first drive shaft and the second drive shaft in the horizontal direction. The second tensioning shaft is located on the side of the first drive shaft away from the first tensioning shaft in the horizontal direction. The third tensioning shaft is located on the side of the second drive shaft away from the first tensioning shaft in the horizontal direction. The first tension roller and the second tension roller are rotatably mounted on the first tension shaft and are used to tighten the first belt and the second belt, respectively. The third tensioning roller is rotatably mounted on the second tensioning shaft, corresponding to the first tensioning roller, and is used to tighten the first belt; The fourth tensioning roller is rotatably mounted on the third tensioning shaft, corresponding to the second tensioning roller, and is used to tighten the second belt.

[0006] Furthermore, a first driving wheel is provided on the output shaft of the first motor, and a first driven wheel is provided on the first drive shaft. The first driving wheel and the first driven wheel are connected by a first synchronous belt.

[0007] Furthermore, a second driving wheel is provided on the output shaft of the second motor, and a second driven wheel is provided on the second drive shaft. The second driving wheel and the second driven wheel are connected by a second synchronous belt.

[0008] Furthermore, the second tensioning shaft and the third tensioning shaft are movably mounted on the frame along the conveying direction of the first belt and the second belt.

[0009] Furthermore, the frame includes two sets of support beams arranged opposite each other, and each set of support beams has multiple sets of legs and a set of support seats at its bottom; the first support shaft and the second support shaft are respectively located at the two ends of the two sets of support beams along the length direction, and the two ends of the first support shaft and the second support shaft are respectively mounted on the two sets of support beams; the two ends of the first drive shaft, the second drive shaft, the first tension shaft, the second tension shaft, and the third tension shaft are respectively mounted on the two sets of support seats, and the support seats are provided with adjustment holes for the second tension shaft and the third tension shaft to move.

[0010] Furthermore, multiple sets of crossbeams are provided between the two sets of support beams, and support plates are provided between adjacent crossbeams. The crossbeams and support plates are located below the upper belt portion of the first belt and the second belt.

[0011] Compared with the prior art, the advantages of the present invention are as follows: the first belt and the second belt of the dual belt conveyor mechanism of the present invention can still achieve independent driving of each other while sharing the first support shaft and the second support shaft, and the parallel arrangement of the first belt and the second belt significantly saves space; the dual belt conveyor mechanism of the present invention can transport two different materials, can achieve forward and reverse rotation, and the step distance of the first belt and the second belt can also be different for different products, which makes the control flexible and the conveying accuracy high. Attached Figure Description

[0012] Appendix Figure 1 This is a schematic diagram of the structure of the present invention.

[0013] Appendix Figure 2 This is a schematic diagram of the tensioning mechanism of the present invention.

[0014] Appendix Figure 3 This is a schematic diagram of the bottom structure of the dual belt conveyor mechanism of the present invention.

[0015] The labels shown in the attached diagram: 1. First support shaft; 11. First driven roller; 12. Second driven roller; 2. Second support shaft; 21. Third driven roller; 22. Fourth driven roller; 3. First drive shaft; 31. First drive roller; 32. First driven wheel; 4. Second drive shaft; 41. Second drive roller; 42. Second driven wheel; 5. First motor; 51. First drive wheel; 52. First synchronous belt; 6. Second motor; 61. Second drive wheel; 62. Second synchronous belt; 7. First belt; 8. Second belt; 9. Tensioning mechanism; 91. First tensioning shaft; 92. Second tensioning shaft; 93. Third tensioning shaft; 94. First tensioning roller; 95. Second tensioning roller; 96. Third tensioning roller; 97. Fourth tensioning roller; 10. Frame; 101. Support beam; 102. Support leg; 103. Support base; 104. Crossbeam; 105. Support plate; 106. Adjustment hole. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0017] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms "comprising" and similar expressions used in this invention specification and claims mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as "connection" are not limited to physical or mechanical connections and can be direct or indirect.

[0018] like Figures 1-3 As shown, the present invention provides a dual-belt conveyor mechanism, including a frame 10, on which a first support shaft 1, a second support shaft 2, a first drive shaft 3, a second drive shaft 4, a first motor 5, a second motor 6, a first belt 7, and a second belt 8 are disposed. Preferably, the frame 10 is further provided with a tensioning mechanism 9 for tensioning the first belt 7 and the second belt 8.

[0019] The first support shaft 1 and the second support shaft 2 are arranged parallel to each other on the frame 10. A first driven roller 11 and a second driven roller 12 are rotatably mounted on the first support shaft 1. A third driven roller 21 corresponding to the first driven roller 11 and a fourth driven roller 22 corresponding to the second driven roller 12 are rotatably mounted on the second support shaft 2. The first drive shaft 3 and the second drive shaft 4 are both rotatably mounted on the frame 10 and are arranged parallel to the first support shaft 1 and the second support shaft 2. A first drive roller 31 corresponding to the first driven roller 11 and the third driven roller 21 is fixedly mounted on the first drive shaft 3. A second drive roller 41 corresponding to the second driven roller 12 and the fourth driven roller 22 is fixedly mounted on the second drive shaft 4. The first motor 5 and the second motor 6 are both fixedly mounted on the frame 10. The first motor 5 is driven by the first drive shaft 3, and the second motor 6 is driven by the second drive shaft 4. The first belt 7 is wrapped around the first drive roller 31, the first driven roller 11, and the third driven roller 21; the second belt 8 is wrapped around the second drive roller 41, the second driven roller 12, and the fourth driven roller 22.

[0020] Specifically, in the dual-belt conveyor mechanism of the present invention, the first drive shaft 3 and the second drive shaft 4 can be disposed below the plane formed by the first support shaft 1 and the second support shaft 2, and are spaced apart along the conveying direction of the first belt 7 and the second belt 8. The first driven roller 11 and the second driven roller 12 are arranged side by side axially on the first support shaft 1; similarly, the third driven roller 21 and the fourth driven roller 22 are also arranged side by side axially on the second support shaft 2; correspondingly, the first drive roller 31 and the second drive roller 41 are installed in a staggered manner on their respective drive shafts; this layout allows the first belt 7 and the second belt 8 to achieve independent driving while sharing the first support shaft 1 and the second support shaft 2, and the side-by-side arrangement of the first belt 7 and the second belt 8 significantly saves space. The dual-belt conveyor mechanism of the present invention can convey products of two different materials, can achieve forward and reverse rotation, and the step distance of the first belt 7 and the second belt 8 can also be different for different products, providing flexible control and high conveying accuracy.

[0021] In one embodiment, the tensioning mechanism 9 includes a first tensioning shaft 91, a second tensioning shaft 92, a third tensioning shaft 93, a first tensioning roller 94, a second tensioning roller 95, a third tensioning roller 96, and a fourth tensioning roller 97.

[0022] The first tensioning shaft 91, the second tensioning shaft 92, and the third tensioning shaft 93 are all parallel to the first support shaft 1 and are mounted on the frame 10, located outside the first belt 7 and the second belt 8. The first tensioning shaft 91 is horizontally positioned between the first drive shaft 3 and the second drive shaft 4. The second tensioning shaft 92 is horizontally positioned on the side of the first drive shaft 3 away from the first tensioning shaft 91. The third tensioning shaft 93 is horizontally positioned on the side of the second drive shaft 4 away from the first tensioning shaft 91. The first tensioning roller 94 and the second tensioning roller 95 are rotatably mounted on the first tensioning shaft 91 and are used to tighten the first belt 7 and the second belt 8, respectively. The third tensioning roller 96 is rotatably mounted on the second tensioning shaft 92, corresponding to the first tensioning roller 94, and is used to tighten the first belt 7. The fourth tensioning roller 97 is rotatably mounted on the third tensioning shaft 93, corresponding to the second tensioning roller 95, and is used to tighten the second belt 8.

[0023] In this embodiment, the first belt 7 is wrapped around the first drive roller 31, the first driven roller 11, and the third driven roller 21. The first tension roller 94 and the third tension roller 96, located on both sides of the first drive roller 31, press against the first belt 7 from its outer periphery to achieve tension. During operation, the first motor 5 drives the first drive shaft 3 to rotate, which in turn drives the first drive roller 31 to rotate, ultimately causing the first belt 7 to circulate and transport materials.

[0024] In this embodiment, the second belt 8 is wrapped around the second drive roller 41, the second driven roller 12, and the fourth driven roller 22. The second belt 8 is tensioned by the second tension roller 95 and the fourth tension roller 97 located on both sides of the second drive roller 41, which press against its outer periphery. During operation, the second motor 6 drives the second drive shaft 4 to rotate, which in turn drives the second drive roller 41 to rotate, ultimately causing the second belt 8 to circulate and transport materials.

[0025] In this embodiment, the tensioning mechanism has a compact layout, using three tensioning shafts and four tensioning rollers to provide effective tension for the two belts. The tensioning points are distributed on both sides of the first belt 7 and the second belt 8, which can increase the contact area between the belt and the drive roller, thereby greatly improving the transmission efficiency and load capacity, and effectively preventing belt slippage and deviation. At the same time, this compact design saves installation space and simplifies the overall structure.

[0026] In one embodiment, a first driving wheel 51 is mounted on the output shaft of the first motor 5, and a first driven wheel 32 is mounted on the first drive shaft 3. The first driving wheel 51 and the first driven wheel 32 are connected by a first synchronous belt 52. When the first motor 5 operates, it drives the first driving wheel 51 to rotate, which in turn drives the first driven wheel 32 through the first synchronous belt 52, causing the first drive shaft 3 and its first drive roller 31 to rotate synchronously, ultimately driving the first belt 7 surrounding it to achieve conveying motion.

[0027] In one embodiment, a second driving wheel 61 is mounted on the output shaft of the second motor 6, and a second driven wheel 42 is mounted on the second drive shaft 4. The second driving wheel 61 and the second driven wheel 42 are connected by a second synchronous belt 62. When the second motor 6 operates, it drives the second driving wheel 61 to rotate, which in turn drives the second driven wheel 42 via the second synchronous belt 62. This causes the second drive shaft 4 and its second drive roller 41 to rotate synchronously, ultimately driving the second belt 8 surrounding it to achieve conveying motion.

[0028] In one embodiment, the second tensioning shaft 92 and the third tensioning shaft 93 are movably mounted on the frame 10 along the conveying direction of the first belt 7 and the second belt 8, so as to adjust the tension of the first belt 7 and the second belt 8, prevent the belts from loosening, running off-center or slipping after long-term operation, and improve the stability and durability of the mechanism.

[0029] In this embodiment, by fixing the first tensioning shaft 91 in the middle to form a stable support reference point, and by adjusting only the second tensioning shaft 92 and the third tensioning shaft 93 on the outer side, the tension of the two belts can be adjusted independently, precisely and conveniently.

[0030] In one embodiment, the frame 10 includes two sets of support beams 101 arranged opposite each other. Each set of support beams 101 has multiple sets of legs 102 and a set of support seats 103 at its bottom. The first support shaft 1 and the second support shaft 2 are located at opposite ends of the two sets of support beams 101 along their length, and both ends of the first support shaft 1 and the second support shaft 2 are respectively mounted on the two sets of support beams 101. The two ends of the first drive shaft 3, the second drive shaft 4, the first tension shaft 91, the second tension shaft 92, and the third tension shaft 93 are respectively mounted on the two sets of support seats 103. The support seats 103 have adjustment holes 106 for the second tension shaft 92 and the third tension shaft 93 to move. Locking bolts can be threaded onto one or both sides of the adjustment holes 106 on the support seats 103 to fix the second tension shaft 92 and the third tension shaft 93.

[0031] In one embodiment, multiple sets of crossbeams 104 are further provided between the two sets of support frames, and support plates 105 are provided between adjacent crossbeams 104. The crossbeams 104 and support plates 105 are located below the upper belt portions of the first belt 7 and the second belt 8 to provide auxiliary support. This can prevent excessive sagging of the first belt 7 and the second belt 8 due to their own weight or the weight of the goods during conveying, ensure the flatness of the conveying plane, reduce abnormal wear of the first belt 7 and the second belt 8, extend their service life, and improve the structural rigidity and operational stability of the entire equipment.

[0032] Those skilled in the art should understand that the specific embodiments described above are merely examples and not limitations. Various modifications, combinations, partial combinations, and substitutions can be made to the embodiments of the present invention according to design requirements and other factors, as long as they are within the scope of the appended claims or their equivalents, and thus fall within the scope of the rights to be protected by the present invention.

Claims

1. A double-belt conveyor mechanism, comprising a frame, characterized in that, Also includes: A first support shaft and a second support shaft are arranged in parallel on the frame. A first driven roller and a second driven roller are rotatably arranged on the first support shaft. A third driven roller corresponding to the first driven roller and a fourth driven roller corresponding to the second driven roller are rotatably arranged on the second support shaft. The first drive shaft and the second drive shaft are rotatably mounted on the frame and are parallel to the first support shaft and the second support shaft. The first drive shaft is provided with a first drive roller corresponding to the first driven roller and the third driven roller, and the second drive shaft is provided with a second drive roller corresponding to the second driven roller and the fourth driven roller. A first motor and a second motor are fixedly mounted on the frame. The first motor is driven by the first drive shaft, and the second motor is driven by the second drive shaft. The first belt is wrapped around the first drive roller, the first driven roller, and the third driven roller; The second belt is wrapped around the second drive roller, the second driven roller, and the fourth driven roller.

2. The double belt conveyor mechanism according to claim 1, characterized in that, It also includes a tensioning mechanism, which comprises: The first tensioning shaft, the second tensioning shaft, and the third tensioning shaft are all arranged parallel to the first support shaft on the frame and are all located outside the first belt and the second belt. The first tensioning shaft is located between the first drive shaft and the second drive shaft in the horizontal direction. The second tensioning shaft is located on the side of the first drive shaft away from the first tensioning shaft in the horizontal direction. The third tensioning shaft is located on the side of the second drive shaft away from the first tensioning shaft in the horizontal direction. The first tension roller and the second tension roller are rotatably mounted on the first tension shaft and are used to tighten the first belt and the second belt, respectively. The third tensioning roller is rotatably mounted on the second tensioning shaft, corresponding to the first tensioning roller, and is used to tighten the first belt; The fourth tensioning roller is rotatably mounted on the third tensioning shaft, corresponding to the second tensioning roller, and is used to tighten the second belt.

3. The double belt conveyor mechanism according to claim 1, characterized in that, A first driving wheel is provided on the output shaft of the first motor, and a first driven wheel is provided on the first drive shaft. The first driving wheel and the first driven wheel are connected by a first synchronous belt.

4. The double belt conveyor mechanism according to claim 1, characterized in that, A second driving wheel is provided on the output shaft of the second motor, and a second driven wheel is provided on the second drive shaft. The second driving wheel and the second driven wheel are connected by a second synchronous belt.

5. The double belt conveyor mechanism according to claim 2, characterized in that, The second tensioning shaft and the third tensioning shaft are movably mounted on the frame along the conveying direction of the first belt and the second belt.

6. The double belt conveyor mechanism according to claim 5, characterized in that, The frame includes two sets of support beams arranged opposite each other. Each set of support beams has multiple sets of legs and a set of support seats at its bottom. The first support shaft and the second support shaft are located at the two ends of the two sets of support beams along their length, and the two ends of the first support shaft and the second support shaft are respectively mounted on the two sets of support beams. The two ends of the first drive shaft, the second drive shaft, the first tension shaft, the second tension shaft, and the third tension shaft are respectively mounted on the two sets of support seats. The support seats are provided with adjustment holes for the second tension shaft and the third tension shaft to move.

7. The double belt conveyor mechanism according to claim 6, characterized in that, Multiple sets of crossbeams are also provided between the two sets of support beams, and support plates are provided between adjacent crossbeams. The crossbeams and support plates are located below the upper belt section of the first belt and the second belt.

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