A device for improving the vibration screening effect of tobacco leaves

Abstract

This utility model relates to a device for improving the vibration screening effect of tobacco leaves. Its structure includes a vibrating trough and a screen. Several equidistant curved surfaces are arranged at the seams of the screen, with the inclination direction of the curved surfaces aligned with the vibration direction of the tobacco leaves. Several miniature vibration motors are arranged at the bottom of the screen, equidistantly distributed along the vibration direction of the tobacco leaves. This device uses inclined surfaces on the screen to cause the tobacco leaves to tumble during transport, thereby turning over tobacco leaves floating above them to the bottom, improving the screening effect.

Description

Technical Field

[0001] This utility model relates to a device for improving the vibration screening effect of tobacco leaves, and belongs to the technical field of tobacco processing equipment. Background Technology

[0002] In tobacco processing, fine tobacco flakes and dust mixed in with the tobacco leaves are removed by a vibrating screen to improve the whole tobacco shred rate after shredding. This process and equipment typically uses blade screening before the tobacco leaves enter the shredder. However, due to the limited transmission distance of the vibrating screen and the fact that the vibration frequency is pre-tuned, traditional screening devices can only remove the fine tobacco flakes and dust from the lower layers of tobacco leaves during high-volume transmission. The fine tobacco flakes and dust floating on the upper layers cannot be completely screened out, thus reducing the whole tobacco shred rate and consequently affecting cigarette quality. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a device for improving the effect of tobacco leaf vibration screening. The device has an inclined surface on the screen, which makes the tobacco leaves tumble during the transmission process, thereby turning the fine tobacco pieces and dust floating in the upper layer of tobacco leaves to the bottom, thus improving the screening effect of tobacco leaves.

[0004] To solve the above problems, the specific technical solution of this utility model is as follows: A device for improving the vibration screening effect of tobacco leaves includes a vibrating trough and a screen; several equidistant curved surfaces are set at the seams of the screen, and the inclination direction of the curved surfaces is consistent with the vibration walking direction of the tobacco leaves; several micro vibration motors are set at the bottom of the screen, and the micro vibration motors are equidistantly distributed along the vibration walking direction of the tobacco leaves.

[0005] A support is provided at the top of the curved surface at the same longitudinal position. Several air nozzles are provided on the support. The air outlet direction of the air nozzles is located at the front end of the top of the curved surface, and the air outlet direction is inclined at 30° towards the discharge direction.

[0006] The screen used is a fish scale screen.

[0007] The curved surface forms an angle of 30° to 60° with the screen.

[0008] The device for improving the vibration screening effect of tobacco leaves in this application adopts the above structure and has the following advantages: 1. An inclined surface is set on the screen. When the tobacco material passes through the inclined surface, the material is tumbled by the vibration of the equipment and the vibration of the micro vibration motor, which achieves more comprehensive screening and improves the screening effect. 2. Add an air nozzle to the top as an auxiliary cleaning tool for the fish scale screen after the production process is completed, to blow away the debris in the fish scale screen holes. Attached Figure Description

[0009] Figure 1 This is a perspective view of this application.

[0010] Figure 2 This is a front view with partial cross-section of this application. Detailed Implementation

[0011] A device for improving the vibration screening effect of tobacco leaves, for clear structural representation, as follows: Figure 1 and Figure 2 The diagram shows a section of the overall screening device of this application, including a vibrating trough 1 and a screen 2. The screen 2 is a fish-scale screen. Several equidistant curved surfaces 3 are set at the seams of the screen 2. The inclination direction of the curved surfaces 3 is consistent with the vibration and walking direction of the tobacco leaves. The curved surfaces 3 form an angle of 30° to 60° with the screen 2. The smaller the angle between the curved surfaces 3 and the screen 2, the faster the speed of passing through the inclined plane, but the lower the probability of tumbling. The larger the angle, the slower the speed of passing through the inclined plane, but the higher the probability of tumbling.

[0012] Several miniature vibration motors 4 are provided at the bottom of the screen 2. The miniature vibration motors 4 are evenly distributed along the vibration direction of the tobacco leaves. The miniature vibration motors 4 can provide vibration at different frequencies to improve screening efficiency.

[0013] A support 5 is provided at the top of the curved surface 3 at the same longitudinal position. Several air nozzles 6 are provided on the support 5. The air outlet direction of the air nozzles 6 is located at the front end of the top of the curved surface 3, and the blowing angle is inclined forward, along the material outlet direction. After the production process is completed, the auxiliary cleaning tool of the fish scale screen blows away the debris in the fish scale screen holes to improve cleaning efficiency.

Claims

1. A device for improving the vibration screening effect of tobacco leaves, characterized in that: It includes a vibrating groove (1) and a screen (2); several equidistant curved surfaces (3) are set at the seams of the screen (2), and the inclination direction of the curved surfaces (3) is consistent with the vibration and walking direction of the tobacco leaves; several micro vibration motors (4) are set at the bottom of the screen (2), and the micro vibration motors (4) are equidistantly distributed along the vibration and walking direction of the tobacco leaves.

2. The device for improving the effect of tobacco leaf vibrating sieving according to claim 1, characterized in that: A support (5) is provided on the top of the curved surface (3) at the same longitudinal position. Several air nozzles (6) are provided on the support (5). The air outlet direction of the air nozzles (6) is located at the front end of the top of the curved surface (3), and the air outlet direction is inclined at 30° towards the discharge direction.

3. The device for improving the effect of tobacco leaf vibrating sieving according to claim 1, characterized in that: The screen (2) mentioned above is a fish scale screen.

4. The device for improving the effect of tobacco leaf vibrating sieving according to claim 1, characterized in that: The curved surface (3) forms an angle of 30° to 60° with the screen (2).

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