A spiral-shaped stalk removal device

By using a spiral stem removal device to separate stems through the gaps in the spiral roller assembly, the problem of poor vibration screening effect is solved, achieving efficient separation of tobacco stem raw materials and improving the quality of tobacco shreds, thereby increasing the efficiency and consistency of tobacco shredding production.

CN224449144UActive Publication Date: 2026-07-03ANHUI JINGGAO AUTOMATION CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI JINGGAO AUTOMATION CO LTD
Filing Date
2025-08-22
Publication Date
2026-07-03

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Abstract

This utility model discloses a spiral stem removal device, relating to the technical field of spiral stem removal devices, including a spiral roller fixing frame; several seated bearings are fixedly connected to the upper side of the spiral roller fixing frame, a rotating shaft is rotatably connected inside the seated bearings, and a spiral roller is fixedly connected to the outer side of the rotating shaft; a seated bearing is provided on one side of the seated bearings, a rotating shaft is rotatably connected inside the seated bearing, and a spiral roller is fixedly connected to the outer side of the rotating shaft; a reduction motor is fixedly connected to one side of the rotating shaft and the rotating shaft; an upper support is fixedly connected to the middle of the upper side of the spiral roller fixing frame, and several connecting parts are fixedly connected to the lower side of the upper support; there is a set gap between the spiral rollers (the gap is adjustable), the tobacco stems fall through the gaps between the spiral rollers, and the stems, due to their shape characteristics and geometric dimensions, are conveyed by the spiral rollers to the stem dropping hopper, thus achieving the process objective of stem removal.
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Description

Technical Field

[0001] This utility model relates to the technical field of spiral stem removal devices, specifically a spiral stem removal device. Background Technology

[0002] The spiral stem removal device is a specialized piece of equipment used in specific material handling fields to precisely and efficiently separate and remove stems from materials. It is commonly used in industries such as tobacco, traditional Chinese medicine, and some agricultural products, where stems are often present during processing. This device, through its unique spiral structure and working principle, effectively removes stems, improving material purity and subsequent processing quality. In tobacco processing, stems, due to their unique cellular structure, are essential to remove. Industrial production lines typically use vibrating screens to remove stems, but their wedge-shaped geometry easily causes screen blockage, resulting in poor screening efficiency over time.

[0003] Therefore, those skilled in the art have provided a spiral stump removal device to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a spiral stem removal device, wherein the spiral roller assembly has a set gap (the gap is adjustable), the tobacco stems fall through the gap between the spiral rollers, and the stems, due to their shape characteristics and geometric dimensions, are conveyed by the spiral rollers to the stem drop hopper, thereby achieving the process objective of stem removal and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A spiral-type stem removal device includes a spiral roller fixing frame; a plurality of seated bearings are fixedly connected to the upper side of the spiral roller fixing frame, a rotating shaft is rotatably connected inside the seated bearings, and a spiral roller is fixedly connected to the outer side of the rotating shaft; a seated bearing is provided on one side of the seated bearings, a rotating shaft is rotatably connected inside the seated bearing, and a spiral roller is fixedly connected to the outer side of the rotating shaft.

[0007] As a further embodiment of this utility model, a geared motor is fixedly connected to one side of the first rotating shaft and the second rotating shaft.

[0008] As a further embodiment of this utility model, an upper support is fixedly connected to the upper middle of the spiral roller fixing frame, and several connecting parts are fixedly connected to the lower side of the upper support.

[0009] As a further embodiment of this utility model, a tobacco stem feeding arc-shaped slide plate is fixedly connected to one side of the connector, and a tobacco stem feeding vibration groove is provided on one side of the tobacco stem feeding arc-shaped slide plate.

[0010] As a further embodiment of this utility model, a usable tobacco stem hopper is fixedly connected to the lower middle of the spiral roller fixing frame, and a stem bend hopper is fixedly connected to one side of the spiral roller fixing frame.

[0011] As a further embodiment of this utility model, the lower four ends of the spiral roller fixing frame are fixedly connected to brackets, and the lower side of the brackets is fixedly connected to a lower support pad.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The gap between spiral roller one and spiral roller two allows for the separation of tobacco stems and stem clippings. This not only more effectively removes stem clippings, preventing them from contaminating subsequent tobacco processing, but also significantly improves the purity of the tobacco stem raw materials used in tobacco processing. This ensures superior quality of the final tobacco products, meeting the stringent requirements for high-quality tobacco products. Furthermore, the stable and precise removal of stem clippings ensures consistent quality of the tobacco stem raw materials entering subsequent cutting and drying processes, reducing product quality instability caused by fluctuations in stem clipping content. The improved purity of the raw materials maintains a stable and good level in terms of taste, combustion performance, and appearance, contributing to the creation of reliable and consistent-tasting tobacco products and enhancing market competitiveness. The rotating pushing action of spiral rollers one and two enables continuous material conveying and separation. The tobacco stems and stem clippings are continuously screened through the gap under the action of spiral rollers one and two, making the entire process dynamic and uninterrupted. As long as a stable material supply is maintained, the equipment can continuously and efficiently complete the separation work, avoiding frequent start-ups and shutdowns for separation operations. This significantly increases the processing capacity of tobacco stems per unit time, helping to accelerate the overall tobacco processing progress and improve production efficiency. Furthermore, after accurately separating the stems, subsequent tobacco processing steps (such as shredding and flavoring) no longer require additional time and effort to address the problems caused by the stems. For example, it avoids excessive wear on the shredder blades and uneven shredding caused by the presence of stems, or uneven adsorption of flavorings by stems affecting the overall flavor of the tobacco. Each process can proceed more smoothly, reducing processing interruptions and equipment adjustments caused by stem interference, further improving the overall operating efficiency of the tobacco processing production line. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a spiral-type stem removal device.

[0015] Figure 2 This is a schematic diagram of the spiral roller assembly in a spiral stem removal device.

[0016] Figure 3 This is a schematic diagram of the arc-shaped slide plate for feeding tobacco stems in a spiral stem removal device.

[0017] Figure 4 This is a schematic diagram of the spiral roller in a spiral-type stem removal device.

[0018] In the diagram: 1-Spiral roller fixing frame, 2-Bearing with seat 1, 3-Rotating shaft 1, 4-Spiral roller 1, 5-Bearing with seat 2, 6-Rotating shaft 2, 7-Spiral roller 2, 8-Gear motor, 9-Upper bracket, 10-Connector, 11-Cigarette stem feeding arc-shaped slide plate, 12-Cigarette stem feeding vibrating trough, 13-Usable cigarette stem discharge hopper, 14-Cigarette stem discharge hopper, 15-Bracket, 16-Lower support pad. Detailed Implementation

[0019] Please see Figures 1-4 In this embodiment of the utility model, a spiral stem removal device includes a spiral roller fixing frame 1; a plurality of seated bearings 2 are fixedly connected to the upper side of the spiral roller fixing frame 1, a rotating shaft 3 is rotatably connected inside the seated bearings 2, and a spiral roller 4 is fixedly connected to the outer side of the rotating shaft 3; a seated bearing 5 is provided on one side of the seated bearings 2, a rotating shaft 6 is rotatably connected inside the seated bearing 2, and a spiral roller 7 is fixedly connected to the outer side of the rotating shaft 6; a reduction motor 8 is fixedly connected to one side of the rotating shaft 3 and the rotating shaft 6; the... An upper support 9 is fixedly connected to the middle of the upper side of the spiral roller fixing frame 1, and several connecting parts 10 are fixedly connected to the lower side of the upper support 9; a tobacco stem feeding arc-shaped slide plate 11 is fixedly connected to one side of the connecting parts 10, and a tobacco stem feeding vibration groove 12 is provided on one side of the tobacco stem feeding arc-shaped slide plate 11; a usable tobacco stem drop hopper 13 is fixedly connected to the middle of the lower side of the spiral roller fixing frame 1, and a stem drop hopper 14 is fixedly connected to one side of the spiral roller fixing frame 1; a support 15 is fixedly connected to the four ends of the lower side of the spiral roller fixing frame 1, and a lower support pad 16 is fixedly connected to the lower side of the support 15.

[0020] The working principle of this utility model is as follows: In use, the device can first be placed in a suitable position using the bracket 15 and the lower support pad 16. Then, the tobacco stem material mixed with stems is conveyed through the tobacco stem feeding vibrating trough 12. The tobacco stem material mixed with stems will then fall onto the spiral roller 4 and spiral roller 7 through the tobacco stem feeding arc-shaped slide plate 11 and come into contact with the spiral blades on the spiral roller 4 and spiral roller 7. Then, the reduction motor 8 is started simultaneously by the external controller. The reduction motor 8 will drive the rotating shaft 3 and rotating shaft 6 to rotate respectively. Then, the rotating shaft 3 and rotating shaft 6 will drive the spiral roller 4 and spiral roller 7 to rotate respectively. Then, as the spiral roller 4 and spiral roller 7 rotate, the material will be pushed to move along the axial direction of the roller body. Since there is a certain gap between the spiral roller 4 and spiral roller 7, the size of this gap is carefully designed and is usually slightly larger than the average size of the tobacco stem and smaller than the average size of the stem. During the material feeding process, smaller tobacco stems can pass through the gap smoothly and fall into the available tobacco stem hopper 13 below; while larger stems cannot pass through the gap and remain on the spiral rollers 4 and 7, continuing to move forward with the rotation. Then, the stems can be collected through the stem hopper 14, thus achieving the separation of tobacco stems and stems. The tobacco stems and stems are separated by a certain gap between the spiral rollers 4 and 7. This not only removes stems more effectively, preventing them from being mixed into subsequent tobacco processing, but also significantly improves the purity of the tobacco stem raw materials used for tobacco processing, ensuring that the final tobacco products are of higher quality and meet the strict requirements of high-quality tobacco products for raw materials. Moreover, because stems can be removed relatively stably and accurately, the quality of tobacco stem raw materials entering subsequent tobacco processing processes such as cutting and drying is relatively consistent, reducing product quality instability caused by fluctuations in stem content. Whether it's the taste, combustion performance, or appearance of the tobacco, the improved purity of the raw materials ensures a stable and high-quality level, contributing to the creation of reliable and consistent-tasting tobacco products and enhancing their market competitiveness. Furthermore, the rotating pushing action of spiral rollers 4 and 7 enables continuous material conveying and separation. Tobacco stems and stalks are continuously screened through the gaps under the influence of these rollers, making the entire process dynamic and uninterrupted. As long as a stable material supply is maintained, the device can continuously and efficiently complete the separation process, avoiding frequent start-ups and shutdowns. This significantly increases the processing capacity of tobacco stems per unit time, accelerating the overall tobacco processing progress and improving production efficiency. In addition, after accurately separating the stalks, subsequent processing steps (such as cutting and flavoring) no longer require additional time and effort to address the problems caused by the stalks. For example, it avoids excessive wear on the cutting machine blades, uneven cutting, or uneven flavoring absorption by the stalks during flavoring, which can negatively impact the overall flavor of the tobacco.Each process can proceed more smoothly, reducing processing interruptions and equipment adjustments caused by interference from stems and other factors, and further improving the overall operating efficiency of the tobacco processing production line.

[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A spiral type stem and leaf removing device comprising a spiral roller fixing frame (1), a spiral roller one (4) and a spiral roller two (7), characterized in that, The upper side of the spiral roller fixing frame (1) is fixedly connected with several seated bearings (2), the inside of the seated bearings (2) is rotatably connected with a rotating shaft (3), and the outside of the rotating shaft (3) is fixedly connected with a spiral roller (4); a seated bearing (5) is provided on one side of the seated bearings (2), the inside of the seated bearings (5) is rotatably connected with a rotating shaft (6), and the outside of the rotating shaft (6) is fixedly connected with a spiral roller (7).

2. A spiral stem and handle removing device according to claim 1, wherein A geared motor (8) is fixedly connected to one side of the first rotating shaft (3) and the second rotating shaft (6).

3. The spiral-type stalk removal device according to claim 1, characterized in that, The upper support (9) is fixedly connected to the middle of the upper side of the spiral roller fixing frame (1), and several connecting pieces (10) are fixedly connected to the lower side of the upper support (9).

4. A spiral stem and leaf removing device according to claim 3, wherein One side of the connector (10) is fixedly connected to a tobacco stem feeding arc-shaped slide plate (11), and one side of the tobacco stem feeding arc-shaped slide plate (11) is provided with a tobacco stem feeding vibration groove (12).

5. A spiral stem and bud removing device according to claim 1, wherein A usable tobacco stem hopper (13) is fixedly connected to the middle of the lower side of the spiral roller fixing frame (1), and a stem bend hopper (14) is fixedly connected to one side of the spiral roller fixing frame (1).

6. A spiral stem and leaf removing device according to claim 1, characterized in that The spiral roller fixing frame (1) is fixedly connected to four ends of the lower side of the bracket (15), and the lower side of the bracket (15) is fixedly connected to the lower support pad (16).