Tobacco leaf pressing structure of tobacco leaf shredding equipment for tobacco processing

The crank-connecting rod transmission structure, consisting of a cam and a linkage rod, combined with a buffer spring rod and an adjusting threaded rod, enables dynamic pressing and force adjustment of tobacco leaves. This solves the problem of unevenness in traditional tobacco leaf pressing structures, improving the quality of shredding and operational safety.

CN223979411UActive Publication Date: 2026-03-10CHINA TOBACCO HENAN IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Traditional tobacco leaf compression structures cannot achieve uniform compression and dynamic adjustment of tobacco leaves, resulting in uneven shredding and affecting the quality of tobacco processing.

Method used

The crank-connecting rod transmission structure, consisting of a cam, a linkage rod, and a mounting rod, drives the pressure frame and the bonding base plate to move up and down. Combined with a buffer spring rod and an adjusting threaded rod, it achieves dynamic pressing and force adjustment of the tobacco leaves.

Benefits of technology

It improves the compactness and uniformity of tobacco leaves, ensures the uniformity and quality of shredding, guarantees operational safety, and avoids personal injury.

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Abstract

The utility model discloses a tobacco leaf compressing structure of tobacco leaf shredding equipment for tobacco processing, which relates to the technical field of tobacco processing, and comprises a conveying belt, an auxiliary compressing roller and a shredding assembly, a tobacco leaf compressing assembly for compressing tobacco leaves is arranged on one side of the auxiliary compressing roller, and the tobacco leaf compressing assembly is arranged on the other side of the auxiliary compressing roller. The tobacco leaf pressing assembly comprises an attaching bottom plate located above the conveying belt, the upper surface of the attaching bottom plate is fixedly connected with a buffer spring rod, and the top end of the buffer spring rod is fixedly connected with a pressure applying frame. A crank connecting rod transmission structure composed of the first cam, the second cam, the linkage rod and the installation rod drives the pressing frame and the attaching bottom plate to move up and down, and tobacco leaves on the conveying belt are flattened. Therefore, the tobacco leaves are tighter and tidier before being caught by the auxiliary pressing roller, stable and flat tobacco leaf raw materials can be provided for follow-up shredding work of the shredding assembly after secondary pressing, and the shredding uniformity and quality are effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of tobacco processing technology, specifically to a tobacco leaf pressing structure for a tobacco leaf shredding device used in tobacco processing. Background Technology

[0002] In the tobacco processing industry, the pressing operation before tobacco leaves are shredded has a significant impact on the quality of the final product. However, traditional tobacco leaf pressing structures have many defects, which seriously restrict production efficiency and product quality improvement, specifically as follows:

[0003] Traditional pressing plates cannot achieve pre-compression and flattening of tobacco leaves: Previous pressing structures often used fixed straight plates or manual flattening, which could not conform to the irregular shape of the tobacco leaves, resulting in uneven pressing force. The tobacco leaves were difficult to achieve a tight and uniform state before entering subsequent processes. This made it difficult for the auxiliary pressing rollers to effectively capture the tobacco leaves, resulting in poor secondary pressure. Consequently, during the shredding assembly, the tobacco leaves were prone to positional shifts and uneven thickness, severely affecting the uniformity and quality of the shredding. This contrasts sharply with the beneficial effect of this new structure, which improves shredding quality through dynamic flattening.

[0004] Lack of dynamic adjustment mechanism: Traditional structures cannot adjust the compaction force according to the real-time condition of the tobacco leaves on the conveyor belt. Factors such as conveyor belt vibration and irregular stacking of tobacco leaves can cause unstable tobacco leaf conditions, and existing fixed pressure plates cannot cope with these changes and cannot ensure that the tobacco leaves are always in a suitable compaction state. Utility Model Content

[0005] The purpose of this utility model is to provide a tobacco leaf pressing structure for a tobacco leaf shredding device used in tobacco processing, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A tobacco leaf pressing structure for a tobacco leaf shredding device for tobacco processing includes a conveyor belt, an auxiliary pressing roller, and a shredding assembly. A tobacco leaf pressing assembly for pressing tobacco leaves is provided on one side of the auxiliary pressing roller.

[0008] The tobacco leaf pressing assembly includes a bonding base plate located above the conveyor belt. A buffer spring rod is fixedly connected to the upper surface of the bonding base plate. A pressure frame is fixedly connected to the top of the buffer spring rod. An adjusting threaded rod is threadedly connected to the upper surface of the pressure frame. A cross mounting bracket is rotatably connected to the outer wall of the adjusting threaded rod. A mounting rod is detachably fixed to the bottom surface of the cross mounting bracket near one end by bolts. A guide ring is movably sleeved on the outer wall of the mounting rod. An auxiliary drive assembly for driving the cross mounting bracket to reciprocate up and down is provided at the bottom end of the mounting rod.

[0009] Furthermore, the auxiliary drive assembly includes a linkage rod, the top end of which is rotatably connected to the bottom end of the mounting rod. The bottom end of the linkage rod is rotatably connected to a cam one and a cam two via a shaft. A pulley two is fixedly connected to the side of the cam one away from the cam two. The outer wall of the pulley two is connected to the pulley one via a belt drive. An auxiliary conveying roller is fixedly connected to the inner wall of the pulley one. The auxiliary conveying roller is located on the inner wall of the conveyor belt near one end.

[0010] Furthermore, a crossbar is fixedly connected to the side of the second cam away from the first cam, and a bearing is rotatably connected to the outer wall of the end of the crossbar near the second cam.

[0011] Furthermore, there are two mounting rods, which are symmetrically positioned on the bottom surface of the cross-shaped mounting bracket.

[0012] Furthermore, the shredding assembly is located on the side of the auxiliary pressing roller away from the tobacco pressing assembly.

[0013] Furthermore, the outer wall of the conveyor belt is provided with a mounting base, and the outer wall of the buffer spring rod is fixedly connected to one side of the mounting base.

[0014] The beneficial effects of this utility model are:

[0015] 1. This technical solution optimizes the pressing process and improves the shredding quality: A crank-connecting rod transmission structure composed of cam one, cam two, a linkage rod, and a mounting rod drives the pressure frame and the bonding base plate to move up and down, flattening the tobacco leaves on the conveyor belt. This makes the tobacco leaves more compact and uniform before being caught by the auxiliary pressing rollers. After secondary pressure, it provides a stable and flat raw material for the subsequent shredding assembly, effectively improving the uniformity and quality of the shredding.

[0016] 2. This technical solution offers convenient pressure adjustment and ensures operational safety: The structure allows for easy adjustment of the distance between the pressure frame and the cross-shaped mounting bracket by rotating the threaded rod, thus easily increasing or decreasing the pressure applied to the tobacco leaves to meet different tobacco processing needs. Simultaneously, the curved frame edges at both ends of the base plate and the buffer spring rod provide cushioning, preventing injury to workers' limbs and playing a crucial role in ensuring operational safety. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the right-side structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the tobacco leaf pressing assembly of this utility model;

[0020] Figure 4 This is an enlarged schematic diagram of the structure at point A of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Conveyor belt; 2. Tobacco leaf pressing assembly; 3. Auxiliary pressing roller; 4. Shredding assembly; 5. Auxiliary conveying roller; 6. Belt pulley one; 7. Belt pulley two; 8. Fitting base plate; 9. Pressure frame; 10. Buffer spring rod; 11. Cross mounting bracket; 12. Mounting rod; 13. Cam one; 14. Cam two; 15. Linkage rod; 16. Cross bar; 17. Adjusting threaded rod; 18. Mounting base frame; 19. Guide ring. Detailed Implementation

[0023] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of this utility model, and should not be construed as limiting the technical solution of this utility model.

[0024] like Figure 1-4 As shown, this utility model provides a tobacco leaf pressing structure for a tobacco leaf cutting device for tobacco processing, including a conveyor belt 1, an auxiliary pressing roller 3 and a cutting assembly 4. A tobacco leaf pressing assembly 2 for pressing the tobacco leaves is provided on one side of the auxiliary pressing roller 3.

[0025] The tobacco leaf pressing assembly 2 includes a bonding base plate 8 located above the conveyor belt 1. A buffer spring rod 10 is fixedly connected to the upper surface of the bonding base plate 8. A pressure frame 9 is fixedly connected to the top of the buffer spring rod 10. An adjusting threaded rod 17 is threadedly connected to the upper surface of the pressure frame 9. A cross mounting bracket 11 is rotatably connected to the outer wall of the adjusting threaded rod 17. A mounting rod 12 is detachably fixedly connected to the bottom surface of the cross mounting bracket 11 near one end by bolts. A guide ring 19 is movably sleeved on the outer wall of the mounting rod 12. An auxiliary drive assembly for driving the cross mounting bracket 11 to reciprocate up and down is provided at the bottom end of the mounting rod 12.

[0026] The auxiliary drive assembly includes a linkage rod 15, the top end of which is rotatably connected to the bottom end of the mounting rod 12. The bottom end of the linkage rod 15 is rotatably connected to a cam 13 and a cam 14 via a shaft. A pulley 7 is fixedly connected to the side of the cam 13 away from the cam 14. A pulley 6 is connected to the outer wall of the pulley 7 via a belt drive. An auxiliary conveying roller 5 is fixedly connected to the inner wall of the pulley 6. The auxiliary conveying roller 5 is located on the inner wall of the conveyor belt 1 near one end.

[0027] A crossbar 16 is fixedly connected to the side of cam 14 away from cam 13, and a bearing is rotatably connected to the outer wall of the end of the crossbar 16 near cam 14.

[0028] In this application, there are two mounting rods 12, which are symmetrically positioned on the bottom surface of the cross mounting frame 11. The shredding assembly 4 is located on the side of the auxiliary pressing roller 3 away from the tobacco pressing assembly 2. The outer wall of the conveyor belt 1 is provided with a mounting base 18, and the outer wall of the buffer spring rod 10 is fixedly connected to one side of the mounting base 18.

[0029] The working principle of the tobacco leaf pressing structure in this tobacco leaf shredding equipment for tobacco processing:

[0030] like Figure 1-4 As shown, during use, the tobacco leaves to be shredded are laid flat on the conveyor belt 1. As the conveyor belt 1 starts, the tobacco leaves gradually move to the bottom plate 8. During the start-up process of the conveyor belt 1, the auxiliary conveyor roller 5 rotates synchronously. Therefore, pulley 6 drives pulley 7 to rotate via the belt. Pulley 7 then drives cam 13 and cam 14 to rotate synchronously. Cam 13 and cam 14 then push the mounting rod 12 to move up and down via the linkage rod 15. The mounting rod 12 is guided and limited by the guide ring 19, and moves up and down in the direction perpendicular to the ground.

[0031] The mounting rod 12 will drive the pressure frame 9 to move up and down through the cross mounting bracket 11. The pressure frame 9 will then drive the bottom plate 8 to move up and down through the buffer spring rod 10, thereby flattening the tobacco leaves on the conveyor belt 1. This will allow the tobacco leaves to be captured more tightly and neatly by the auxiliary pressing roller 3 for secondary pressure, thus facilitating the subsequent shredding work of the shredding assembly 4.

[0032] When it is necessary to change the pressure channel applied to the tobacco leaves, the adjusting threaded rod 17 can be rotated to move the pressure frame 9, so that the pressure frame 9 moves away from or closer to the cross mounting bracket 11, thereby increasing or decreasing the subsequent pressure.

[0033] Both ends of the base plate 8 have curved edges, preventing injury to workers' limbs when adjusting the tobacco leaves. The buffer spring rod 10 also prevents finger injuries. The shaft seat connected to the crossbar 16 is fixed to the bottom of the mounting base 18. Cam 13, Cam 2 14, linkage rod 15, and mounting rod 12 form a crank-connecting rod transmission structure. The auxiliary pressure roller 3 can be rotated using the power of the conveyor belt 1 or driven by an external drive motor.

[0034] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A tobacco leaf compacting structure of a tobacco leaf cutting apparatus for tobacco processing, comprising a conveyor belt, an auxiliary compacting roller, and a cutting assembly, characterized by: One side of the auxiliary compression roller is provided with a tobacco compression assembly for compressing tobacco leaves; The tobacco compression assembly comprises a fitting bottom plate above the conveying belt, an upper surface of the fitting bottom plate is fixedly connected with a buffer spring rod, a top end of the buffer spring rod is fixedly connected with a pressure applying frame, an upper surface of the pressure applying frame is threadedly connected with an adjusting threaded rod, an outer wall of the adjusting threaded rod is rotatably connected with a cross mounting bracket, a bottom surface of the cross mounting bracket close to one end is detachably fixedly connected with a mounting rod through bolts, an outer wall of the mounting rod movably sleeved with a guide ring, and a bottom end of the mounting rod is provided with an auxiliary driving assembly for driving the cross mounting bracket to reciprocate up and down.

2. The tobacco leaf pressing structure of the tobacco leaf cutting apparatus for processing tobacco according to claim 1, characterized in that: The auxiliary driving assembly comprises a linkage rod, a top end of the linkage rod is rotatably connected with a bottom end of the mounting rod, a bottom end of the linkage rod is rotatably connected with a cam one and a cam two through shaft rods respectively, one side of the cam one away from the cam two is fixedly connected with a belt pulley two, an outer wall of the belt pulley two is drivingly connected with a belt pulley one through a belt, an inner wall of the belt pulley one is fixedly connected with an auxiliary conveying roller, and the auxiliary conveying roller is located on an inner wall of the conveying belt close to one end.

3. The tobacco leaf pressing structure of the tobacco leaf cutting apparatus for processing tobacco according to claim 2, characterized in that: One side of the cam two away from the cam one is fixedly connected with a cross rod, and an outer wall of one end of the cross rod close to the cam two is rotatably connected with a shaft seat.

4. The tobacco leaf pressing structure of the tobacco leaf cutting apparatus for processing tobacco according to claim 1, wherein: The number of the mounting rods is two, and the two mounting rods are symmetrically arranged on the bottom surface of the cross mounting bracket.

5. The tobacco leaf pressing structure of the tobacco leaf cutting apparatus for processing tobacco according to claim 1, wherein: The cutting assembly is located on one side of the auxiliary compression roller away from the tobacco compression assembly.

6. The tobacco leaf pressing structure of the tobacco leaf cutting apparatus for processing tobacco according to claim 1, wherein: An outer wall of the buffer spring rod is fixedly connected with one side of the mounting base.