Vibration groove material loosening device

By designing a vibrating trough loosening device, the problem of tobacco clumps affecting the efficiency of stem and impurity removal was solved, and the effective stratification and dispersal of tobacco shreds were achieved, thus improving the quality of cigarettes.

CN223489155UActive Publication Date: 2025-10-31ZHENGZHOU TOBACCO RES INST OF CNTC
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Patent Information

Application Number
CN202422862454.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-23
Publication Date
2025-10-31
Estimated Expiration
2034-11-23

AI Technical Summary

Technical Problem

In the tobacco production process, clumped materials and impurities entering the air separation process affect the removal efficiency of stems and debris, leading to a decline in the quality of cigarette production.

Method used

Design a vibrating trough loosening device, including a screen plate, a vibrating trough clamping and fixing plate and three cross braces. The screen plate is inclined and the screen holes are adjustable. The guide plate prevents the accumulation of tobacco shreds. The cross braces are triangular and the buffer pad reduces impact. Multiple sets of screen plates have adjustable angles to adapt to vibrating troughs of different widths.

Benefits of technology

It improves the efficiency of removing stems and impurities, enhances the quality of finished cigarettes, and achieves effective dispersing and stratification of clumps of tobacco.

✦ Generated by Eureka AI based on patent content.

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Abstract

A vibration groove material loosening device is suitable for being installed on a vibration groove used for conveying tobacco shreds and comprises a sieve plate, vibration groove clamping and fixing plates connected to the two side edges of the sieve plate and three cross braces connected between the two vibration groove clamping and fixing plates, and sieve holes are evenly distributed in the sieve plate. The sieve plate is connected with the bottom of the vibration groove clamping and fixing plate through folded edges on the two sides of the sieve plate and is obliquely arranged with the front portion low and the rear portion high, the front end of the sieve plate is close to the incoming material direction, and a 2-30 mm gap is formed between the front edge of the sieve plate and a vibration groove bottom plate. The three transverse supports are arranged in a triangular space, and the vibration groove clamping and fixing plate is connected to the two side walls of the vibration groove through the pressing blocks and the fastening nuts. The inclination angle of the sieve plate in the device can be adjusted, the front edge of the sieve plate is used for cutting hooked tobacco, unhooked tobacco is screened through the sieve plate, layering of caked tobacco and uncaked tobacco is achieved, tobacco shreds can be screened and scattered through a plurality of groups of conveying sieves with different sieve plate angles, and then the stem sliver and impurity removing efficiency of the subsequent winnowing procedure is improved. And the quality of finished cigarettes is improved.
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Description

Technical Field

[0001] This utility model relates to a tobacco vibrating trough installation device, specifically a vibrating trough loosening material device, which is suitable for installation on a vibrating trough for conveying tobacco shreds. Background Technology

[0002] In the tobacco production process, if the tobacco used contains clumps, such as lumps, strands, or metal debris like stems, the presence of these impurities will lead to a decline in the quality of the cigarettes produced, or even render them substandard. The method of conveying tobacco from the previous process to the air-classifying process typically uses a vibrating trough. While some clumps of tobacco in the vibrating trough are shaken apart, some clumps still enter the air-classifying process, affecting the efficiency of removing impurities and stems, and consequently impacting the quality of the finished cigarettes. Utility Model Content

[0003] In view of this, in order to overcome the defects of the existing technology, this utility model provides a vibrating groove loosening device, which can effectively break up agglomerated materials, thereby improving the efficiency of removing stems and impurities and improving the quality of finished cigarettes.

[0004] The objective of this utility model is achieved by adopting the following technical solution:

[0005] A vibrating trough loosening device is suitable for installation on a vibrating trough used for conveying tobacco shreds. The device includes a screen plate, vibrating trough clamping and fixing plates connected to both sides of the screen plate, and three cross braces connected between the two clamping and fixing plates. The screen plate has evenly distributed screen holes. The screen plate is connected to the bottom of the vibrating trough clamping and fixing plates via its folded edges and is inclined at the front and back, with the front of the screen plate facing the incoming material. The front edge of the screen plate has a 2-30 mm gap from the bottom plate of the vibrating trough. The three cross braces are arranged in a triangular spatial arrangement. One cross beam is connected to the top of the vibrating trough clamping and fixing plates, and the other two are guide cross braces. One guide cross brace is located 8-20 mm above the front edge of the screen plate, and the other is located 0-20 mm above the rear edge of the screen plate. The vibrating trough clamping and fixing plates are connected to the two side walls of the vibrating trough via clamping blocks and fastening nuts.

[0006] Furthermore, a guide plate is provided in the material feeding direction of the two vibrating groove clamping and fixing plates to prevent tobacco shreds from accumulating.

[0007] Furthermore, the cross-sections of the two guide cross braces are triangular to reduce the interception of tobacco by the cross braces.

[0008] Furthermore, an anti-collision buffer pad is provided on the contact surface between the clamping and fixing plate of the vibratory groove and the side wall of the vibratory groove.

[0009] Furthermore, the vibrating trough loosening device can be in multiple sets, arranged along the vibrating trough, and the screen plate in each set can be at different inclination angles, ranging from 15° to 50°.

[0010] Furthermore, the sieve plate and the three cross braces are all retractable structures to accommodate vibration grooves of different widths.

[0011] Furthermore, the shape of the sieve holes in the sieve plate can be designed into different shapes as needed, such as triangles, hexagons, circles, or rectangles.

[0012] The beneficial effects of this utility model are:

[0013] 1. The overall structure is reinforced under the action of the three horizontal braces;

[0014] 2. The sieve plate can be installed at different positions with adjustable angles. The front edge of the sieve plate cuts and separates the connected tobacco, while the unconnected tobacco is screened through the sieve plate (i.e., the unconnected tobacco falls through the mesh of the sieve plate onto the bottom plate of the vibrating trough below the sieve plate). , To achieve the stratification of clumped and unclumped tobacco.

[0015] 3. This utility model can also screen and break up tobacco shreds using multiple sets of conveyor screens with different screen angles. Attached Figure Description

[0016] Figure 1 : Assembly diagram of the vibratory trough loosening material device of this utility model;

[0017] Figure 2 Schematic diagram of the loosening material device;

[0018] Figure 3 : A schematic diagram showing the triangular mesh size of the sieve plate;

[0019] Figure 4 Schematic diagram of hexagonal mesh openings in the sieve plate;

[0020] In the diagram: 1. Vibrating trough, 2. Loosening device, 2-1. Crossbeam, 2-2. Flow guide cross brace, 2-3. Screen plate, 2-3-1. Front edge of screen plate, 2-3-2. Rear edge of screen plate, 2-3-3. Folded edges on both sides of screen plate, 2-4. Tobacco flow guide plate, 2-5. Vibrating trough clamping and fixing plate, 2-6. Pressing block, 2-7. Anti-collision buffer pad, 2-8. Fastening nut. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings:

[0022] like Figure 1-4As shown: A vibrating trough loosening device 2 is suitable for installation on a vibrating trough 1 used for conveying tobacco shreds. It includes a screen plate 2-3, vibrating trough clamping and fixing plates 2-5 connected to both sides of the screen plate, and three cross braces connecting the two vibrating trough clamping and fixing plates. The screen plate 2-3 has evenly distributed screen holes. The screen plate 2-3 is connected to the bottom of the vibrating trough clamping and fixing plates 2-5 through its two folded edges 2-3-3, and is inclined at the front and back. The front edge of the screen plate is closer to the incoming material. 2-3-1 has a 2-30 mm gap from the bottom plate of the vibrating trough; the three cross braces are arranged in a triangular space, one of which is a crossbeam connected to the top of the vibrating trough clamping and fixing plate 2-5, and the other two are guide cross braces 2-2, one of which is located 8-20 mm above the front edge 2-3-1 of the screen plate, and the other is set 0-20 mm above the rear edge 2-3-2 of the screen plate; the vibrating trough clamping and fixing plate 2-5 is connected to the two side walls of the vibrating trough 1 through the clamping block 2-6 and the fastening nut 2-8.

[0023] Furthermore, a guide plate 2-4 is provided in the material feeding direction of the two vibrating groove clamping and fixing plates 2-5 to prevent tobacco shreds from accumulating.

[0024] Furthermore, the cross-sections of the two guide cross braces 2-2 are triangular to reduce the interception of tobacco by the cross braces.

[0025] Furthermore, anti-collision buffer pads 2-7 are provided on the contact surface between the clamping and fixing plate 2-5 of the vibrating groove and the side wall of the vibrating groove 1.

[0026] Furthermore, the vibrating trough loosening device 2 can be in multiple sets, conveyed along the vibrating trough 1. The screen plate in each set can be at different inclination angles, ranging from 15° to 50°.

[0027] Furthermore, the sieve plates 2-3 and the three cross braces are all retractable structures to accommodate vibration grooves of different widths.

[0028] Furthermore, the shape of the sieve holes in the sieve plate 2-3 can be designed into different shapes as needed, such as triangles, hexagons, circles or rectangles.

[0029] The screening and conveying process of the tobacco shreds to be loosened is as follows: the tobacco shreds enter the screen plate 2-3 from the incoming material direction. Part of them pass under the screen plate, and the front edge 2-3-1 of the screen plate can cut the tobacco shred clumps. Part of them pass through the screen plate and are screened to achieve stratified screening. Multiple screen plates with different inclination angles can be set on a vibrating trough to further improve the cutting, breaking, and screening effects.

Claims

1. A vibratory trough loosening device, characterized in that: This device is suitable for installation on a vibrating trough used for conveying tobacco shreds. It includes a screen plate, a vibrating trough clamping and fixing plate connected to both sides of the screen plate, and three cross braces connected between the two vibrating trough clamping and fixing plates. The screen plate has screen holes evenly distributed. The screen plate is connected to the bottom of the vibrating trough clamping and fixing plate through the folded edges on both sides and is inclined at the front and back. The front end of the screen plate is in the direction of material inlet. There is a gap of 2-30 mm between the front edge of the screen plate and the bottom plate of the vibrating trough. The three cross braces are arranged in a triangular space. One of them is a crossbeam connected to the top of the vibrating trough clamping and fixing plate. The two below are guide cross braces. One of them is located 8-20 mm above the front edge of the screen plate, and the other is located 0-20 mm above the rear edge of the screen plate. The vibrating trough clamping and fixing plate is connected to the two side walls of the vibrating trough by clamping blocks and fastening nuts.

2. The vibratory trough loosening device according to claim 1, characterized in that: A guide plate is provided in the material feeding direction of the two vibrating groove clamping and fixing plates to prevent tobacco shreds from accumulating.

3. The vibratory trough loosening device according to claim 1, characterized in that: The cross-sections of the two guide cross braces are triangular to reduce the interception of tobacco by the cross braces.

4. The vibratory trough loosening device according to claim 1, characterized in that: Anti-collision buffer pads are provided on the contact surface between the clamping and fixing plate of the vibratory groove and the side wall of the vibratory groove.

5. The vibratory trough loosening device according to claim 1, characterized in that: The vibrating trough loosening device consists of multiple sets, arranged along the vibrating trough, with the screen plates in each set having different inclination angles.

6. The vibratory trough loosening device according to claim 1, characterized in that: The shape of the sieve holes in the sieve plate can be designed as triangles, hexagons, circles or rectangles as needed.

7. The vibratory trough loosening device according to claim 1, characterized in that: The sieve plate and three cross braces are all retractable to accommodate vibration grooves of different widths.

8. The vibratory trough loosening device according to claim 1, characterized in that: The inclination angle of the sieve plate is 15°-50°.