Composite frame fence for threshing and pneumatic separation equipment
By designing a composite frame with rhomboid and hexagonal opening structures, combined with a hard alloy coating and optimized parameters, the problems of large and medium leaf fragment ratio and leaf stem content ratio in leaf threshing and air separation equipment were solved, achieving efficient separation of tobacco leaves and stems and reducing tobacco leaf breakage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2026-04-03
AI Technical Summary
The existing leaf threshing and air-splitting equipment frame is difficult to meet the process requirements of high large and medium leaf fragment ratio and low leaf stem content at the same time. It has problems such as high leaf overload, increased leaf breakage, low large and medium leaf fragment ratio and high leaf stem content.
A composite frame is designed, including a first separation section and a second separation section. The first separation section has a diamond-shaped opening near the top, and the second separation section has a regular hexagonal opening near the bottom. A hard alloy coating is sprayed on the composite frame, and the roller speed and air distribution parameters are optimized.
It improves the separation efficiency of tobacco leaves and stems, reduces the generation of fragments and dust, increases the rate of large and medium-sized leaves, reduces the stem content of leaves and the rate of leaf breakage, and ensures the stability and continuity of the leaf threshing and air separation process.
Smart Images
Figure CN224069704U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cigarette machinery and equipment technology, and more specifically, to a composite frame for a leaf-beating and air-splitting device. Background Technology
[0002] Leaf threshing and air separation is a key process in the re-drying of tobacco leaves, aiming to effectively separate tobacco leaves and stems for further processing. Traditional leaf threshing and air separation equipment often uses a single-size frame design. Some manufacturers use different frame shapes depending on the stage of the process. Diamond-shaped frames are used for the first and second stages of air separation to increase the proportion of large and medium-sized leaves, while circular frames are used for the third and fourth stages to reduce the stem content in the leaves.
[0003] However, the currently used frame structure can only meet one of the indicators, either the large and medium leaf ratio or the leaf stem content ratio, in most cases. When the large and medium leaf ratio is high, the large leaf ratio is also high, and the leaf stem content ratio is also high. When the leaf stem content ratio is low, the large and medium leaf ratio is low, making it difficult to simultaneously meet the process requirements of a high large and medium leaf ratio and a low leaf stem content ratio.
[0004] Furthermore, existing leaf-splitting and air-separating equipment has problems such as high overload, increased leaf breakage, low ratio of large and medium-sized leaves, high ratio of large leaves, and high stem content in leaves when separating tobacco leaves and stems. These problems not only affect the efficiency of leaf and stem separation, but also affect the quality of tobacco leaves.
[0005] Therefore, how to provide a composite frame for leaf-splitting equipment has become a technical problem that urgently needs to be solved in this field. Utility Model Content
[0006] One objective of this invention is to provide a new technical solution for a composite frame for leaf-splitting equipment.
[0007] According to a first aspect of the present invention, a composite frame for a leaf-splitting device is provided, the composite frame including a first separation part and a second separation part, the first separation part being disposed near the top of the composite frame and the second separation part being disposed near the bottom of the composite frame.
[0008] The first separation part is provided with a diamond-shaped opening, which is arranged sequentially along the width direction of the first separation part to divide the first separation part into multiple toothed plates; the second separation part is provided with multiple regular hexagonal openings.
[0009] Optionally, the plurality of the regular hexagonal openings are arranged in a honeycomb pattern on the second separation portion.
[0010] Optionally, the height of the regular hexagonal opening is 90mm, the side length is 18mm, and the distance between two adjacent regular hexagonal openings is 10mm.
[0011] Optionally, the rhomboid openings are continuously arranged, and the height of the rhomboid openings is 69.89 mm.
[0012] Optionally, the toothed plate includes a connecting plate and a triangular plate. The connecting plate is connected to the bottom of the composite frame, and the triangular plates are respectively disposed on both sides of the connecting plate. The diamond-shaped opening is located on the upper and lower sides of the triangular plate.
[0013] Optionally, the composite frame has a thickness of 6 mm and an inner diameter of 337 mm.
[0014] Optionally, the composite frame is provided with connecting ears on both sides, and the thickness of the connecting ears is 3mm.
[0015] Optionally, the composite frame is coated with a hard alloy coating.
[0016] The beneficial effects of this utility model are as follows:
[0017] This invention features a first separating section positioned near the top of the composite frame and a second separating section positioned near the bottom of the composite frame. The first separating section has diamond-shaped openings arranged sequentially along its width, effectively dividing it into multiple toothed plates. The second separating section has multiple hexagonal openings. By incorporating both hexagonal and diamond-shaped openings in the composite frame, this invention maximizes leaf-tearing efficiency and tobacco yield while minimizing the generation of fragments and dust. This helps increase the proportion of medium-sized tobacco leaves, reduce the proportion of large tobacco leaves, and promptly filter out small tobacco fragments, preventing repeated tearing from causing further leaf breakage.
[0018] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description
[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.
[0020] Figure 1 This is an unfolded structural diagram of the composite frame for leaf-beating and air-dividing equipment of this utility model;
[0021] Figure 2 This is a structural diagram of the composite frame used in the leaf-splitting and air-dividing equipment of this utility model.
[0022] The diagram shows the following: 1. First separation section; 2. Second separation section; 3. Rhomboid opening; 4. Toothed plate; 41. Connecting plate; 42. Triangular plate; 5. Regular hexagonal opening; 6. Connecting lug. Detailed Implementation
[0023] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps set forth in these embodiments do not limit the scope of the present invention.
[0024] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.
[0025] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.
[0026] In all the examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.
[0027] like Figures 1 to 2 As shown, this utility model embodiment provides a composite frame for a leaf-splitting device. The composite frame includes a first separation part 1 and a second separation part 2. The first separation part 1 is disposed near the top of the composite frame, and the second separation part 2 is disposed near the bottom of the composite frame.
[0028] Specifically, the composite frame has a semi-circular structure, and the width of the first separation part 1 and the width of the second separation part 2 are respectively equal to half the width of the composite frame.
[0029] The first separation part 1 is provided with a rhomboid opening 3, which is arranged sequentially along the width direction of the first separation part 1, dividing the first separation part 1 into multiple toothed plates 4; the second separation part 2 is provided with multiple regular hexagonal openings 5.
[0030] Specifically, multiple rhomboid openings 3 are spaced apart along the length and width directions of the first separation part 1, and multiple regular hexagonal openings 5 are spaced apart along the length and width directions of the second separation part 2.
[0031] In addition, the composite frame of this utility model is installed on the first and second beaters of the leaf beating and air separation equipment. The corresponding beating roller speeds are: 550 rpm for the first beater and 580 rpm for the second beater. The frequency of the first to ninth air separation is set between 40 Hz and 50 Hz. By optimizing the beating roller speed and air separation parameters, the high rate of large and medium leaf pieces is ensured while the leaf stem content is low.
[0032] This invention features a first separating section 1 positioned near the top of the composite frame, and a second separating section 2 positioned near the bottom of the composite frame. A rhomboid opening 3 is provided on the first separating section 1, arranged sequentially along its width, dividing the first separating section 1 into multiple toothed plates 4. Multiple hexagonal openings 5 are provided on the second separating section 2. By incorporating the hexagonal openings 5 and rhomboid openings 3 on the composite frame, this invention maximizes leaf tearing efficiency and tobacco yield while minimizing the generation of fragments and dust. This helps increase the proportion of medium-sized tobacco leaves, reduce the proportion of large tobacco leaves, and promptly filter out small tobacco fragments, avoiding repeated tearing that causes further leaf breakage.
[0033] In one embodiment of the composite frame for leaf-splitting equipment of this utility model, such as Figure 1 As shown, multiple hexagonal openings 5 are arranged in a honeycomb pattern on the second separation part 2.
[0034] This invention improves the separation efficiency of tobacco leaves and stems and reduces unnecessary repeated processing by arranging multiple regular hexagonal openings 5 in a honeycomb pattern on the second separation part 2.
[0035] In one embodiment of the composite frame for leaf-tearing and air-separating equipment of this utility model, in order to maximize leaf-tearing efficiency and tobacco yield, the height of the regular hexagonal opening 5 is set to 90mm, the side length is set to 18mm, and the distance between two adjacent regular hexagonal openings 5 is set to 10mm.
[0036] In one embodiment of the composite frame for leaf-splitting equipment of this utility model, such as Figure 1 As shown, in order to minimize the generation of fragments and debris, the rhomboid opening 3 is set to a continuous setting, and the height of the rhomboid opening 3 is set to 69.89mm.
[0037] In one embodiment of the composite frame for leaf-splitting equipment of this utility model, such as Figure 1 As shown, the toothed plate 4 includes a connecting plate 41 and a triangular plate 42. The connecting plate 41 is connected to the bottom of the composite frame, and the triangular plates 42 are respectively arranged on both sides of the connecting plate 41. The rhomboid opening 3 is located on the upper and lower sides of the triangular plate 42.
[0038] This utility model connects the connecting plate 41 to the bottom of the composite frame, with triangular plates 42 respectively arranged on both sides of the connecting plate 41, and diamond-shaped openings 3 located on the upper and lower sides of the triangular plates 42, effectively improving the stability of the second separation part 2.
[0039] In one embodiment of the composite frame for leaf-splitting equipment of this utility model, the thickness of the composite frame is 6mm and the inner diameter is 337mm.
[0040] Furthermore, the composite frame is coated with a hard alloy coating.
[0041] This invention improves upon existing frames by setting the thickness of the composite frame to 6mm and spraying a hard alloy coating on it. This reduces clogging, enhances the continuity and stability of the entire leaf threshing and air-splitting process, effectively increases the rate of large and medium-sized tobacco leaves and the rate of medium-sized leaves, and reduces the rate of stems and broken leaves.
[0042] In one embodiment of the composite frame for leaf-splitting equipment of this utility model, such as Figure 2 As shown, in order to improve the stability of the composite frame connection, connecting ears 6 are provided on both sides of the composite frame, and the thickness of the connecting ears 6 is 3mm.
[0043] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.
Claims
1. A composite frame fence for a threshing and winnowing apparatus, characterized in that, The composite fence comprises a first separation part and a second separation part, the first separation part is arranged near the top of the composite fence, and the second separation part is arranged near the bottom of the composite fence; The first separation part is provided with rhombic openings arranged in sequence along the width direction of the first separation part, and the first separation part is divided into a plurality of tooth-shaped plates; the second separation part is provided with a plurality of regular hexagonal openings.
2. The composite fence for threshing apparatus according to claim 1, wherein The plurality of regular hexagonal openings are arranged in a honeycomb shape on the second separation part.
3. The composite fence for threshing apparatus according to claim 1, wherein The height of the regular hexagonal opening is 90 mm, the side length is 18 mm, and the distance between two adjacent regular hexagonal openings is 10 mm.
4. The composite fence for threshing apparatus according to claim 1, wherein, The rhombic openings are continuously arranged, and the height of the rhombic opening is 69.89 mm.
5. The composite fence for threshing apparatus according to claim 1, wherein, The tooth-shaped plate comprises a connecting plate and a triangular plate, the connecting plate is connected with the bottom of the composite fence, the triangular plates are oppositely arranged on both sides of the connecting plate, and the rhombic opening is located on the upper and lower sides of the triangular plate.
6. The composite fence for threshing apparatus according to claim 1, wherein, The thickness of the composite fence is 6 mm, and the inner diameter is 337 mm.
7. The composite fence for threshing apparatus according to claim 1, wherein, The two sides of the composite fence are provided with connecting ears, and the thickness of the connecting ear is 3 mm.
8. The composite fence for threshing apparatus according to claim 1, wherein, The composite fence is sprayed with a hard alloy coating.