Conveying device for tobacco stem shredding

By combining the design of strip grooves, reciprocating fabric belts and limiting grids, the problem of inconsistent shape of tobacco stems during the cutting process is solved, and the tobacco stems are conveyed perpendicularly to the cutter, which improves the uniformity of tobacco blending and the quality of cigarettes.

CN224112109UActive Publication Date: 2026-04-14CHONGQING CHINA TOBACCO IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

In existing tobacco processing lines, the tobacco stems are arranged haphazardly or their length is perpendicular to the cutter during the shredding process. This results in a large difference in shape between the stems and leaves, affecting the uniformity of tobacco blending and the quality of cigarettes, and is particularly limiting in the use of high-end cigarettes.

Method used

The design employs a combination of strip grooves, reciprocating fabric belts, and limiting grids. By combing the tobacco stems, they are kept perpendicular to the cutting direction of the shredder, and the reciprocating fabric belts distribute the material evenly, preventing the tobacco stems from piling up during transport.

Benefits of technology

It improves the uniformity of tobacco blending and the quality of cigarettes, ensures that the tobacco stems are perpendicular to the cutter before being shredded, reduces accumulation, and enhances the effectiveness of tobacco stems in high-end cigarettes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of tobacco processing, and particularly relates to a conveying device for tobacco stem shredding, which comprises a vibration conveyor, a plurality of strip-shaped grooves parallel to each other are formed in the tail end of a conveying plate in the conveying direction; the length direction of the conveying plate is the same as the conveying direction of the reciprocating material distribution belt; the limiting grating is installed at the tail end of the reciprocating material distribution belt in the conveying direction and located below the reciprocating material distribution belt. The limiting grating comprises a plurality of partition plates which are vertically arranged and are parallel to one another; the conveying direction of the conveying belt is perpendicular to the length direction of the strip-shaped groove and is perpendicular to the cutter direction of the tobacco cutter. The tobacco stem carding device has the advantages that tobacco stems are carded through mutual matching of a strip-shaped groove, a reciprocating material distribution belt and a limiting grating, the tobacco stems are kept perpendicular to the direction of a cutter of a tobacco cutter before entering the tobacco cutter, the tobacco stems are evenly distributed through reciprocating material distribution of the reciprocating material distribution belt, the tobacco stems are prevented from being accumulated on a conveying belt, and the tobacco stem carding efficiency is improved. The tobacco shred blending uniformity and the cigarette quality are improved.
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Description

Technical Field

[0001] This utility model belongs to the field of tobacco processing technology, specifically relating to a conveying device for cutting tobacco stems into shreds. Background Technology

[0002] Currently, some cigarette manufacturers require that tobacco stems be processed into stems that are similar in shape to leaves in order to improve the uniformity of tobacco blending, enhance cigarette quality and the utilization rate of tobacco stem raw materials, and increase the use of stems in high-end cigarettes.

[0003] However, for a long time, the tobacco stem processing technology in tobacco processing lines has generally involved feeding the processed tobacco stems directly into a shredder through a vibrating trough or other equipment for shredding.

[0004] There are two states of tobacco stems during the shredding process: one is a natural pile-up with a messy arrangement, and the other is a straightened arrangement, but the length of the tobacco stems is perpendicular to the shredding direction of the shredding machine blade. After shredding by these two methods, the shape of the stem shreds and leaf shreds are quite different, and most of them are in the form of flakes, which affects the uniformity of tobacco blending and the quality of cigarettes, and limits the use of tobacco stems in cigarettes, especially high-end cigarettes. Utility Model Content

[0005] The purpose of this invention is to provide a conveying device for shredding tobacco stems. Through the cooperation of a strip groove, a reciprocating cloth belt, and a limiting grid, the tobacco stems are combed so that they are perpendicular to the cutting direction of the shredder before entering it. The reciprocating cloth belt is used to distribute the tobacco stems evenly, preventing them from piling up on the conveyor belt and improving the uniformity of tobacco blending and cigarette quality.

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

[0007] A conveying device for shredding tobacco stems, comprising:

[0008] A vibrating conveyor, comprising a conveying plate, wherein a plurality of parallel strip grooves are provided at the end of the conveying direction of the conveying plate;

[0009] A reciprocating fabric belt is installed at the end of the conveyor plate in the conveying direction and below the strip groove. The length direction of the conveyor plate is the same as the conveying direction of the reciprocating fabric belt.

[0010] A limiting grid is installed at the end of the reciprocating fabric belt in the conveying direction and is located below the reciprocating fabric belt;

[0011] The limiting grid includes several vertically arranged and parallel partitions, with a gap between two adjacent partitions, the length direction of which is parallel to the length direction of the strip groove.

[0012] The conveyor belt used to connect the shredder has a conveying direction perpendicular to the length direction of the trough.

[0013] The conveyor belt is perpendicular to the cutting direction of the shredder.

[0014] Furthermore, the length direction of the groove is the same as the conveying direction of the reciprocating fabric belt;

[0015] The conveying direction of the reciprocating fabric belt is perpendicular to the conveying direction of the transmission belt.

[0016] This structural design, by setting the conveying direction of the reciprocating fabric belt perpendicular to the conveyor belt, can reduce the overall length of the conveying device.

[0017] Furthermore, the length direction of the groove is perpendicular to the conveying direction of the reciprocating fabric belt;

[0018] The conveying direction of the reciprocating fabric belt is the same as that of the transmission belt.

[0019] This structural design, by setting the conveying direction of the reciprocating fabric belt parallel to the conveyor belt, can reduce the width and length of the conveying device.

[0020] Furthermore, a leveling mechanism is provided above the transmission belt;

[0021] The leveling mechanism is inclined from top to bottom towards the direction of the shredder.

[0022] This structural design, through a leveling mechanism located above the conveyor belt and inclined, levels the tobacco stems on the conveyor belt, ensuring the overall height of the tobacco stems entering the shredder, making it highly practical.

[0023] Further specifying, the leveling mechanism is a pressure belt, and the pressure belt is synchronously connected to the transmission belt.

[0024] This structural design uses a pressing belt that rotates synchronously with the conveyor belt as a leveling mechanism to level the tobacco stems located on the conveyor belt. This can improve the throughput of tobacco stems and avoid the problem of tobacco stem accumulation caused by relative movement between the tobacco stems and the leveling mechanism.

[0025] Furthermore, the upper surfaces of several of the partitions are on the same horizontal plane;

[0026] The length of some of the partitions in the vertical direction gradually decreases along the conveying direction of the conveyor belt.

[0027] This structural design, by limiting the length of the partition in the vertical direction, can reduce the distance the tobacco stems fall after falling from the limiting grid. While ensuring that the tobacco stems on the conveyor belt are not blocked by the partition, it avoids the problem of the tobacco stems being rearranged due to falling too high.

[0028] Specifically, the lower end of the limiting grid is set in a stepped shape. When the tobacco stems fall from the limiting grid, the tobacco stems located at the end away from the shredder fall directly onto the conveyor belt. As the conveyor belt moves forward, the subsequent tobacco stems gradually cover the tobacco stems of the previous layer, so that the tobacco stems on the conveyor belt at the end away from the shredder are in a sloping shape, and the stepped shape of the lower end of the limiting grid matches this slope.

[0029] The utility model adopting the above technical solution has the following advantages:

[0030] The tobacco stems are combed by the interplay of strip grooves, reciprocating fabric belts, and limiting grids, ensuring that the stems are perpendicular to the cutting direction of the shredder before entering it. The reciprocating fabric belts distribute the stems evenly, preventing them from piling up on the conveyor belt and improving the uniformity of tobacco blending and cigarette quality. Attached Figure Description

[0031] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0032] Figure 1 This is a schematic diagram of the structure of a conveying device for cutting tobacco stems into shreds according to Embodiment 1 of the present invention;

[0033] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0034] Figure 3 This is a schematic diagram of a second embodiment of the conveying device for cutting tobacco stems into shreds according to the present invention;

[0035] The symbols for the main components are explained below:

[0036] Vibrating conveyor 1, conveyor plate 11, trough 12

[0037] 2. Reciprocating fabric belt

[0038] Limiting grille 3

[0039] 41. Transmission belt; 42. Leveling mechanism. Detailed Implementation

[0040] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that similar or identical parts are referred to by the same reference numerals in the drawings or description. Implementations not shown or described in the drawings are forms known to those skilled in the art. Furthermore, directional terms mentioned in the embodiments, such as "up," "down," "top," "bottom," "left," "right," "front," and "back," are only for reference to the directions in the drawings and are not intended to limit the scope of protection of the present invention. Example 1

[0041] like Figures 1-2 As shown, the present invention provides a conveying device for shredding tobacco stems, comprising:

[0042] Vibrating conveyor 1, the vibrating conveyor 1 includes a conveying plate 11, and a plurality of parallel strip grooves 12 are opened at the end of the conveying direction of the conveying plate 11.

[0043] The reciprocating fabric belt 2 is installed at the end of the conveying direction of the conveying plate 11 and is located below the strip groove 12. The length direction of the conveying plate 11 is the same as the conveying direction of the reciprocating fabric belt 2.

[0044] The limiting grid 3 is installed at the end of the reciprocating fabric belt 2 in the conveying direction and is located below the reciprocating fabric belt 2.

[0045] The limiting grille 3 includes several vertically arranged and parallel partitions, with a gap between two adjacent partitions. The length direction of the gap is parallel to the length direction of the strip groove 12.

[0046] The conveyor belt 41 used to connect the shredder has a conveying direction perpendicular to the length direction of the strip groove 12.

[0047] The conveying direction of the conveyor belt 41 is perpendicular to the cutting direction of the shredder.

[0048] The length direction of the trough 12 is the same as the conveying direction of the reciprocating fabric belt 2;

[0049] The conveying direction of the reciprocating fabric belt 2 is perpendicular to the conveying direction of the transmission belt 41.

[0050] By setting the conveying direction of the reciprocating fabric belt 2 perpendicular to the conveying direction of the transmission belt 41, the overall length of the conveying device can be reduced.

[0051] A leveling mechanism 42 is provided above the transmission belt 41;

[0052] The leveling mechanism 42 tilts from top to bottom toward the direction of the shredder.

[0053] The leveling mechanism 42, located above the conveyor belt 41 and inclined, levels the tobacco stems on the conveyor belt 41, ensuring the overall height of the tobacco stems entering the shredder, which is highly practical.

[0054] The leveling mechanism 42 is a pressure belt, which is synchronously connected to the transmission belt 41.

[0055] In practice, depending on the actual situation, a fixed inclined baffle plate can be selected as the leveling mechanism 42 to scrape the tobacco stems on the conveyor belt 41 to ensure the overall height of the tobacco stems entering the shredder. In this embodiment, the pressing belt that rotates synchronously with the conveyor belt 41 is used as the leveling mechanism 42 to level the tobacco stems on the conveyor belt 41, which can improve the tobacco stem throughput and avoid the problem of tobacco stem accumulation caused by relative movement between the tobacco stems and the leveling mechanism 42.

[0056] The upper surfaces of several partitions are on the same horizontal plane;

[0057] The length of several partitions in the vertical direction gradually decreases along the conveying direction of the conveyor belt 41.

[0058] In fact, depending on the actual situation, the lower end of the limiting grid 3 can be set to a horizontal shape. In this embodiment, by limiting the length of the partition in the vertical direction, the falling distance of the tobacco stem after falling from the limiting grid 3 can be reduced. While ensuring that the tobacco stem on the conveyor belt 41 is not blocked by the partition, the problem of the tobacco stem being rearranged due to falling too high is avoided.

[0059] Specifically, the lower end of the limiting grid 3 is set in a stepped shape. When the tobacco stems fall from the limiting grid 3, the tobacco stems located at the end away from the shredder fall directly onto the conveyor belt 41. As the conveyor belt 41 moves forward, the subsequent tobacco stems gradually cover the tobacco stems of the previous layer, so that the tobacco stems on the conveyor belt 41 are sloped at the end away from the shredder, and the stepped shape of the lower end of the limiting grid 3 matches this slope.

[0060] In this embodiment, during use, the tobacco stems are conveyed forward on the conveyor plate 11 of the vibrating conveyor 1. When the tobacco stems are located on the strip groove 12, the tobacco stems with the same length direction as the strip groove 12 fall from the strip groove 12 onto the reciprocating fabric belt 2. At this time, the length direction of the tobacco stems is the same as the conveying direction of the reciprocating fabric belt 2.

[0061] The reciprocating fabric belt 2 transports the tobacco stems to the limiting grid 3. After being combed twice by the limiting grid 3, the tobacco stems fall onto the transmission belt 41 and are then driven by the transmission belt 41 to move towards the shredder. During this process, the leveling mechanism 42, which is a pressing belt that rotates synchronously with the transmission belt 41, levels the tobacco stems on the transmission belt 41 until the tobacco stems are transported to the shredder and cut by the blades of the shredder. Example 2

[0062] like Figure 3 As shown, the present invention provides a conveying device for shredding tobacco stems, comprising:

[0063] Vibrating conveyor 1, the vibrating conveyor 1 includes a conveying plate 11, and a plurality of parallel strip grooves 12 are opened at the end of the conveying direction of the conveying plate 11.

[0064] The reciprocating fabric belt 2 is installed at the end of the conveying direction of the conveying plate 11 and is located below the strip groove 12. The length direction of the conveying plate 11 is the same as the conveying direction of the reciprocating fabric belt 2.

[0065] The limiting grid 3 is installed at the end of the reciprocating fabric belt 2 in the conveying direction and is located below the reciprocating fabric belt 2.

[0066] The limiting grille 3 includes several vertically arranged and parallel partitions, with a gap between two adjacent partitions. The length direction of the gap is parallel to the length direction of the strip groove 12.

[0067] The conveyor belt 41 used to connect the shredder has a conveying direction perpendicular to the length direction of the strip groove 12.

[0068] The conveying direction of the conveyor belt 41 is perpendicular to the cutting direction of the shredder.

[0069] The length direction of the trough 12 is perpendicular to the conveying direction of the reciprocating fabric belt 2;

[0070] The conveying direction of the reciprocating fabric belt 2 is the same as that of the transmission belt 41.

[0071] By setting the conveying direction of the reciprocating fabric belt 2 parallel to the conveying direction of the transmission belt 41, the width and length of the conveying device can be reduced.

[0072] A leveling mechanism 42 is provided above the transmission belt 41;

[0073] The leveling mechanism 42 tilts from top to bottom toward the direction of the shredder.

[0074] The leveling mechanism 42, located above the conveyor belt 41 and inclined, levels the tobacco stems on the conveyor belt 41, ensuring the overall height of the tobacco stems entering the shredder, which is highly practical.

[0075] The leveling mechanism 42 is a pressure belt, which is synchronously connected to the transmission belt 41.

[0076] In practice, depending on the actual situation, a fixed inclined baffle plate can be selected as the leveling mechanism 42 to scrape the tobacco stems on the conveyor belt 41 to ensure the overall height of the tobacco stems entering the shredder. In this embodiment, the pressing belt that rotates synchronously with the conveyor belt 41 is used as the leveling mechanism 42 to level the tobacco stems on the conveyor belt 41, which can improve the tobacco stem throughput and avoid the problem of tobacco stem accumulation caused by relative movement between the tobacco stems and the leveling mechanism 42.

[0077] The upper surfaces of several partitions are on the same horizontal plane;

[0078] The length of several partitions in the vertical direction gradually decreases along the conveying direction of the conveyor belt 41.

[0079] In fact, depending on the actual situation, the lower end of the limiting grid 3 can be set to a horizontal shape. In this embodiment, by limiting the length of the partition in the vertical direction, the falling distance of the tobacco stem after falling from the limiting grid 3 can be reduced. While ensuring that the tobacco stem on the conveyor belt 41 is not blocked by the partition, the problem of the tobacco stem being rearranged due to falling too high is avoided.

[0080] Specifically, the lower end of the limiting grid 3 is set in a stepped shape. When the tobacco stems fall from the limiting grid 3, the tobacco stems located at the end away from the shredder fall directly onto the conveyor belt 41. As the conveyor belt 41 moves forward, the subsequent tobacco stems gradually cover the tobacco stems of the previous layer, so that the tobacco stems on the conveyor belt 41 are sloped at the end away from the shredder, and the stepped shape of the lower end of the limiting grid 3 matches this slope.

[0081] In this embodiment, during use, the tobacco stems are conveyed forward on the conveyor plate 11 of the vibrating conveyor 1. When the tobacco stems are located on the strip groove 12, the tobacco stems with the same length direction as the strip groove 12 fall from the strip groove 12 onto the reciprocating fabric belt 2. At this time, the length direction of the tobacco stems is perpendicular to the conveying direction of the reciprocating fabric belt 2.

[0082] The reciprocating fabric belt 2 transports the tobacco stems to the limiting grid 3. After being combed twice by the limiting grid 3, the tobacco stems fall onto the transmission belt 41 and are then driven by the transmission belt 41 to move towards the shredder. During this process, the leveling mechanism 42, which is a pressing belt that rotates synchronously with the transmission belt 41, levels the tobacco stems on the transmission belt 41 until the tobacco stems are transported to the shredder and cut by the blades of the shredder.

[0083] The above provides a detailed description of a conveying device for cutting tobacco stems into shreds according to this utility model. The specific embodiments are described only to aid in understanding the method and core concept of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A conveying device for shredding tobacco stems, characterized in that: include: Vibrating conveyor (1), the vibrating conveyor (1) includes a conveying plate (11), and the end of the conveying plate (11) in the conveying direction is provided with a plurality of parallel strip grooves (12). A reciprocating fabric belt (2) is installed at the end of the conveying direction of the conveying plate (11) and below the strip groove (12). The length direction of the conveying plate (11) is the same as the conveying direction of the reciprocating fabric belt (2). The limiting grid (3) is installed at the end of the reciprocating fabric belt (2) in the conveying direction and is located below the reciprocating fabric belt (2); The limiting grille (3) includes several vertically arranged and parallel partitions, with a gap between two adjacent partitions. The length direction of the gap is parallel to the length direction of the strip groove (12). The conveyor belt (41) used to connect the shredder has a conveying direction perpendicular to the length direction of the trough (12); The conveying direction of the conveyor belt (41) is perpendicular to the cutting direction of the shredder.

2. The conveying device for shredding tobacco stems according to claim 1, characterized in that: The length direction of the groove (12) is the same as the conveying direction of the reciprocating fabric belt (2); The conveying direction of the reciprocating fabric belt (2) is perpendicular to the conveying direction of the transmission belt (41).

3. The conveying device for shredding tobacco stems according to claim 1, characterized in that: The length direction of the groove (12) is perpendicular to the conveying direction of the reciprocating fabric belt (2); The conveying direction of the reciprocating fabric belt (2) is the same as that of the transmission belt (41).

4. The conveying device for shredding tobacco stems according to claim 1, characterized in that: A leveling mechanism (42) is provided above the transmission belt (41); The leveling mechanism (42) is inclined from top to bottom toward the direction of the shredder.

5. The conveying device for shredding tobacco stems according to claim 4, characterized in that: The leveling mechanism (42) is a pressing belt, which is synchronously connected to the transmission belt (41).

6. The conveying device for shredding tobacco stems according to claim 1, characterized in that: The upper surfaces of several of the partitions are on the same horizontal plane; The length of several of the partitions in the vertical direction gradually decreases along the conveying direction of the conveyor belt (41).