Inclination angle adjusting mechanism of tobacco leaf conveying device

Abstract

The utility model discloses a dip angle adjusting mechanism of a tobacco leaf conveying device, the tobacco leaf conveying device comprises an upper conveying device and a lower conveying device, a gap for tobacco leaves to pass through is arranged between the lower conveying device and the upper conveying device, the upper conveying device further comprises a tensioning device, the tensioning device comprises a tensioning frame, and the tensioning frame is fixedly connected with a transverse supporting rod. Inclination angle adjusting mechanisms are arranged at the two ends of the transverse supporting rod respectively, each inclination angle adjusting mechanism comprises a supporting block fixedly installed on the conveying rack and a supporting plate fixedly connected to the transverse supporting rod, threaded holes are formed in the supporting plates, adjusting bolts are arranged in the threaded holes, nuts are arranged on the adjusting bolts on the upper surface and the lower surface of each supporting plate, and the adjusting bolts abut against the supporting blocks. The adjusting bolt abuts against the supporting block, and the gap between the supporting plate and the supporting block is adjusted through the adjusting bolt, so that the gap between the upper conveying device and the lower conveying device is adjusted, it is guaranteed that tobacco leaves smoothly pass through the space between the upper conveying device and the lower conveying device, damage to the tobacco leaves is reduced, and the quality of the tobacco leaves is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tobacco leaf harvesting equipment, and particularly relates to a large inclination angle adjusting mechanism for a tobacco leaf conveying device. Background Technique

[0002] A Chinese patent with the application number 201720349861.X discloses a tobacco leaf picking and conveying mechanism, which includes an upper conveying device and a lower conveying device. There is a gap with adjustable width for tobacco leaves to pass between the upper conveying device and the lower conveying device. The conveyor belt gap can be automatically adjusted according to the amount of fed tobacco leaves, and by adding an elastic tensioning frame, the flexibility of the conveyor belt is ensured, and the damage to tobacco leaves during the conveying process is small. The upper conveying device naturally hangs down by gravity, and the reference gap between it and the lower conveying device is extremely small, zero in the natural state. At this time, it is difficult for tobacco leaves to enter the conveyor belt gap; when automatically adjusting according to the amount of fed tobacco leaves, generally about ten layers of tobacco leaves need to enter this gap to push the upper and lower conveying devices apart. Due to the large self-weight of the upper conveying device, the tobacco leaves in the gap are prone to break the main veins of the tobacco leaves when bearing the weight of the upper conveying device, damaging the quality of the tobacco leaves. Summary of the Invention

[0003] Aiming at the problem of tobacco leaf damage caused by the automatic adjustment of the included angle between the upper and lower conveyor belts in the prior art, the utility model provides an inclination angle adjusting mechanism for a tobacco leaf conveying device, which adjusts the included angle between the upper and lower conveying devices, thereby fixing the reference gap between the upper and lower conveying devices and reducing tobacco leaf damage.

[0004] The purpose of the utility model is achieved in the following way: An inclination angle adjusting mechanism for a tobacco leaf conveying device, the tobacco leaf conveying device includes an upper conveying device and a lower conveying device. There is a gap for tobacco leaves to pass between the lower conveying device and the upper conveying device. The upper conveying device further includes a tensioning device. The tensioning device includes a tensioning frame, a horizontal support rod is fixedly connected to the tensioning frame, inclination angle adjusting mechanisms are respectively arranged at both ends of the horizontal support rod. The inclination angle adjusting mechanism includes a support block fixedly installed on the conveying machine frame and a support plate fixedly connected to the horizontal support rod. A threaded hole is provided on the support plate, an adjusting bolt is arranged in the threaded hole, nuts are arranged on the adjusting bolts on the upper and lower surfaces of the support plate, and the adjusting bolt abuts against the support block.

[0005] The support plate is an inverted L shape, the vertical plate of the L-shaped support plate fits the inner wall of the conveying machine frame, and the vertical plate of the L-shaped support plate moves up and down along the inner wall of the conveying machine frame.

[0006] The support block is an inverted L shape.

[0007] A plurality of horizontal support rods are fixedly connected to the tensioning frame, and inclination angle adjusting mechanisms are arranged at both ends of each horizontal support rod.

[0008] Compared with the prior art, the utility model adjusts the bolt to tightly support the block, and adjusts the gap between the support plate and the support block through the adjusting bolt, so as to adjust the gap between the upper conveying device and the lower conveying device, ensure that the tobacco leaves pass smoothly between the upper conveying device and the lower conveying device, reduce the damage of the tobacco leaves, and improve the quality of the tobacco leaves. Brief Description of the Drawings

[0009] Figure 1 is a schematic structural view of the existing tobacco leaf conveying device.

[0010] Figure 2 is a schematic structural view of the utility model.

[0011] Figure 3 is a partial enlarged view. Detailed Embodiments

[0012] The following further elaborates the utility model in conjunction with the drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model and are not used to limit the scope of the utility model. After reading the content of the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the utility model.

[0013] Refer to the Chinese patent with the application number 201720349861.X. As Figure 1 shown, the tobacco leaf conveying device includes an upper conveying device and a lower conveying device, and there is a gap for the tobacco leaves to pass between the lower conveying device and the upper conveying device. The upper conveying device includes an upper uploading wheel 10 and a tensioning wheel 19. The upper uploading wheel 10 is fixedly arranged on the frame of the tobacco leaf picking machine, and the tensioning wheel 19 is movably arranged. An upper conveyor belt 13 is wound around the outside of the upper uploading wheel 10 and the tensioning wheel 19. The conveyor belt 13 can be tensioned by a tensioning device and can rotate around the axis of the upper conveying wheel 10, and the gap is widened. The lower conveying device includes a lower lower conveying wheel 1 and a lower uploading wheel 8. Both the lower lower conveying wheel 1 and the lower uploading wheel 8 are fixedly arranged, and a lower conveyor belt 2 is wound around the outside of the lower lower conveying wheel 1 and the lower uploading wheel 8. An upper sprocket 9 is installed on the upper uploading wheel 10, a lower sprocket 7 is installed on the lower uploading wheel 8, and a chain 6 connected to the motor sprocket 4 is installed on the upper sprocket 9 and the lower sprocket 7. The motor sprocket 4 drives the chain 6 to rotate, so that the lower sprocket 7 and the upper sprocket 9 rotate synchronously, ensuring that the linear speeds of the upper conveyor belt 13 and the lower conveyor belt 2 are the same, and the tobacco leaves 20 during transmission are not damaged. The tensioning sprocket 5 is connected to the motor sprocket 4, the upper sprocket 9 and the lower sprocket 7 through the chain 6, and the tension of the chain 6 can be adjusted.

[0014] The upper conveyor device further includes a tensioning frame fixing seat 14 fixedly arranged. A tensioning device is arranged between the tensioning frame fixing seat 14 and the tensioning wheel 19. The tensioning device can make the tensioning wheel 19 tightened, and the tensioning device rotates around the axis of the tensioning frame fixing seat 14 to widen or narrow the gap, and make the distance between the tensioning wheel 19 and the upper conveyor wheel 10 become larger or smaller during the working process.

[0015] The tensioning device includes a tensioning frame mounting pipe 15 connected to the tensioning frame fixing seat 14 and a tensioning frame 18 connected to the tensioning wheel 19. The tensioning wheel 19 is fixedly installed on the tensioning frame 18 through a pedestal bearing 22. The tensioning frame 18 is installed in the tensioning frame mounting pipe 15. A position-adjustable limit bolt 16 is arranged on the tensioning frame mounting pipe 15. A compression spring 17 is arranged in the tensioning frame mounting pipe 15 between the limit bolt 16 and the tensioning frame 18. Due to the elastic force of the compression spring 17, the distance between the tensioning wheel 19 and the upper conveyor wheel 10 becomes larger or smaller during the working process, making the tightness of the upper conveyor belt elastic and preventing damage to the tobacco leaves.

[0016] As Figure 2 、 Figure 3 shown, a cross support rod 100 is fixedly connected to the tensioning frame 18. The cross support rod 100 is perpendicular to the tensioning frame 18. Angle adjustment mechanisms 200 are respectively arranged at both ends of the cross support rod 100. The angle adjustment mechanism 200 includes a support block 201 fixedly installed on the conveyor frame 300 and a support plate 202 fixedly connected to the cross support rod 100. A threaded hole is arranged on the support plate 202, and an adjustment bolt 203 is arranged in the threaded hole. Nuts 204 are arranged on the adjustment bolts 203 on the upper and lower surfaces of the support plate 202, and the adjustment bolt 203 abuts against the support block 201. By adjusting the gap between the support plate 202 and the support block 201 through the adjustment bolt 203, the gap between the upper conveyor device and the lower conveyor device is adjusted, ensuring that the tobacco leaves can pass smoothly between the upper conveyor device and the lower conveyor device, reducing damage to the tobacco leaves and improving the quality of the tobacco leaves. Part of the weight of the upper conveyor device is transmitted to the conveyor frame through the cross support rod 100, the support plate 202 and the adjustment bolt 203, reducing damage to the tobacco leaves.

[0017] During normal use, the reference gap between the upper conveyor belt 13 and the lower conveyor belt 2 is set at about 2 cm. When the picking speed of the tobacco leaf picker changes, resulting in a change in the amount of tobacco leaves to be conveyed, adjust the adjustment bolt 203 to adjust the gap between the upper conveyor belt 13 and the lower conveyor belt 2.

[0018] In a further preferred solution, the support plate 202 is an inverted L shape. The vertical plate of the L-shaped support plate fits against the inner wall of the conveyor frame, and the vertical plate of the L-shaped support plate moves up and down along the inner wall of the conveyor frame. The conveyor frame plays a guiding role for the L-shaped support plate to prevent the support plate from shaking left and right.

[0019] For a further preferred solution, the support block 201 is also in an inverted L shape, and the vertical plate of the L-shaped support block 201 is fixed to the outside of the conveyor frame.

[0020] For an even further preferred solution, a plurality of horizontal support rods 100 are fixedly connected to the tensioning frame, and inclination adjusting mechanisms 200 are provided at both ends of each horizontal support rod 100. The plurality of horizontal support rods 100 and the inclination adjusting mechanisms 200 provided thereon make the gravity distribution of the tensioning frame and the upper conveyor device more uniform and stable. Too many inclination adjusting mechanisms 200 may lead to cumbersome adjustment procedures, and even the heights of multiple adjusting bolts are not uniform. Therefore, generally one or at most two horizontal support rods 100 are provided.

[0021] For other matters not covered, refer to the Chinese patent with the application number 201720349861.X, or it is prior art.

[0022] In the present utility model, the adjusting bolt presses against the support block, and the gap between the support plate and the support block is adjusted by the adjusting bolt, so as to adjust the gap between the upper conveyor device and the lower conveyor device, ensure that the tobacco leaves pass smoothly between the upper conveyor device and the lower conveyor device, reduce the damage to the tobacco leaves, and improve the quality of the tobacco leaves.

[0023] The above are only the preferred embodiments of the present utility model. It should be pointed out that for those skilled in the art, without departing from the overall concept of the present utility model, several changes and improvements can still be made, and these should also be regarded as the protection scope of the present utility model.

Claims

1. An inclination angle adjusting mechanism for a tobacco leaf conveying device. The tobacco leaf conveying device includes an upper conveying device and a lower conveying device. There is a gap for tobacco leaves to pass between the lower conveying device and the upper conveying device. The upper conveying device further includes a tensioning device, and the tensioning device includes a tensioning frame. It is characterized in that: A cross support rod (100) is fixedly connected to the tensioning frame. Angle adjusting mechanisms (200) are respectively arranged at both ends of the cross support rod (100). The angle adjusting mechanism (200) includes a support block (201) fixedly installed on the conveyor frame and a support plate (202) fixedly connected to the cross support rod (100). A threaded hole is provided on the support plate (202), and an adjusting bolt (203) is arranged in the threaded hole. Nuts (204) are arranged on the adjusting bolts (203) on the upper and lower surfaces of the support plate (202), and the adjusting bolt (203) abuts against the support block (201).

2. The inclination angle adjusting mechanism of the tobacco leaf conveying device according to claim 1, wherein: The support plate (202) is an inverted L shape. The vertical plate of the L-shaped support plate fits against the inner wall of the conveyor frame, and the vertical plate of the L-shaped support plate moves up and down along the inner wall of the conveyor frame.

3. The inclination angle adjustment mechanism of the tobacco leaf conveying device according to claim 1, characterized in that: The support block (201) is an inverted L shape.

4. The inclination angle adjusting mechanism of the tobacco leaf conveying device according to claim 1, wherein: Multiple cross support rods (100) are fixedly connected to the tensioning frame, and angle adjusting mechanisms (200) are arranged at both ends of each cross support rod (100).

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