A tobacco leaf screening device in a tobacco primary processing machine

By combining electric telescopic rods and vibrating motors, the problem of tobacco leaf accumulation in the tobacco leaf screening device was solved, improving screening efficiency and purity.

CN224356986UActive Publication Date: 2026-06-16CHINA TOBACCO GUIZHOU IND

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA TOBACCO GUIZHOU IND
Filing Date
2025-07-04
Publication Date
2026-06-16

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    Figure CN224356986U_ABST
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Abstract

The utility model discloses a tobacco leaf screening device in tobacco primary processing machine, including screening box, the one side fixed setting of screening box inner wall has first hinged seat, the one side hinged of first hinged seat away from screening box inner wall has first connecting strip, the one side fixed setting of screening box inner wall top end has second hinged seat, a kind of tobacco leaf screening device in tobacco primary processing machine of the utility model, by feed hopper, the tobacco leaf to be screened is guided into the screening seat in screening box, then by electric telescopic link drives third hinged seat to move up and down, to drive second connecting strip to move up and down, further drive screening seat to rotate back and forth with first hinged seat as pivot, so that the tobacco leaf in screening seat moves back and forth on screening seat, can avoid tobacco leaf accumulation in screening seat cause screening seat to be blocked, further improve screening efficiency, simultaneously by the vibration of several vibration motors power generation, further drive screening seat to vibrate, to accelerate the screening of tobacco leaf.
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Description

Technical Field

[0001] This utility model relates to the field of tobacco leaf screening technology, specifically a tobacco leaf screening device in a tobacco processing machine. Background Technology

[0002] Tobacco leaf screening refers to the removal of impurities and dust from tobacco leaves using vibrating screening equipment to ensure the purity and processing quality of the tobacco leaves. The main purpose of tobacco leaf screening is to remove impurities such as fragments, sand, insect eggs, debris, and short stems from the tobacco leaves, thereby improving their purity, making them more processable, reducing breakage in subsequent processing steps, and ensuring the quality of the threshing process. However, existing tobacco leaf screening devices are prone to tobacco leaf accumulation during use, which affects the screening efficiency.

[0003] To address the aforementioned problems, a tobacco leaf screening device for a tobacco processing machine is proposed here. Utility Model Content

[0004] The purpose of this utility model is to provide a tobacco leaf screening device in a tobacco processing machine, so as to solve the problem mentioned in the background art that existing tobacco leaf screening devices are prone to tobacco leaf accumulation during use, thereby affecting the screening efficiency of tobacco leaves.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tobacco leaf screening device in a tobacco processing machine, comprising a screening box, a first hinge seat fixedly disposed on one side of the inner wall of the screening box, a first connecting strip hinged to the side of the first hinge seat away from the inner wall of the screening box, a second hinge seat fixedly disposed on one side of the top of the inner wall of the screening box, an electric telescopic rod hinged to the bottom end of the second hinge seat, a third hinge seat hinged to the bottom end of the electric telescopic rod, a second connecting strip fixedly disposed at the bottom end of the third hinge seat, a screening seat engaged at the top between the second connecting strip and the first connecting strip, a plurality of third hinge seats fixedly installed at the bottom end of both the first connecting strip and the bottom end of the third hinge seat, and a collection box slidably disposed at the bottom of the inner side of the screening box.

[0006] The tobacco leaves to be screened are fed into the screening seat inside the screening box via the feed hopper. Then, the electric telescopic rod drives the third hinge seat to move up and down, which in turn drives the second connecting bar to move up and down. This causes the screening seat to rotate back and forth around the first hinge seat as the axis, allowing the tobacco leaves inside the screening seat to move back and forth. This prevents the tobacco leaves from accumulating inside the screening seat and causing blockage, thereby improving screening efficiency. At the same time, several vibrating motors are energized to generate vibration, which in turn causes the screening seat to vibrate, thereby accelerating the screening of tobacco leaves.

[0007] Preferably, a feed hopper is fixedly connected to the middle of the top of the screening box. The feed hopper is correspondingly arranged with the screening seat, and the tobacco leaves to be screened are introduced into the screening seat in the screening box through the feed hopper.

[0008] Preferably, both the connection point between the first connecting strip and the screening seat and the connection point between the third hinge seat and the screening seat are provided with connecting slots. Connecting blocks are engaged inside both connecting slots. Both connecting blocks are fixedly connected to the screening seat. The limiting engagement of the two connecting blocks with the two connecting slots facilitates the limiting and fixing of the screening seat.

[0009] Preferably, two sliding grooves are provided at the connection between the screening box and the collection box, and two sliders are fixedly provided at the connection between the collection box and the screening box. The two sliding grooves are slidably connected to the two sliders respectively. The cooperation between the two sliders and the two sliding grooves facilitates the stable movement of the collection box.

[0010] Preferably, the screening box has a sealing door hinged to the front, and an auxiliary handle is fixedly installed on one side of the front of the sealing door. The sealing door can play a role in sealing and protection.

[0011] Preferably, an observation window is fixedly provided at the top of the front of the sealed door, which facilitates observation of the situation inside the screening box.

[0012] Preferably, a control panel is fixedly installed on one side of the screening box, and the electric telescopic rod and several vibration motors are electrically connected to the control panel. The control panel controls the electric telescopic rod and several vibration motors to be powered on and start working.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the tobacco leaves to be screened are introduced into the screening seat in the screening box through the feeding hopper, and then the third hinge seat is moved up and down by the electric telescopic rod, thereby moving the second connecting bar up and down, and then causing the screening seat to rotate back and forth around the first hinge seat as the axis, so that the tobacco leaves in the screening seat move back and forth on the screening seat, which can avoid the tobacco leaves accumulating in the screening seat and causing blockage, thereby improving the screening efficiency. At the same time, several vibrating motors are energized to generate vibration, which in turn causes the screening seat to vibrate, thereby accelerating the screening of tobacco leaves. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a front sectional view of the present invention;

[0016] Figure 3 This is an enlarged view of part A of this utility model;

[0017] Figure 4 This is an enlarged view of part B of the present invention.

[0018] In the diagram: 1. Screening box; 2. Collection box; 3. Feed hopper; 4. First hinge seat; 5. First connecting strip; 6. Second hinge seat; 7. Electric telescopic rod; 8. Third hinge seat; 9. Second connecting strip; 10. Screening seat; 11. Connecting slot; 12. Connecting block; 13. Vibration motor; 14. Slide groove; 15. Sliding block; 16. Control panel; 17. Sealing door; 18. Observation window; 19. Auxiliary handle. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] Please see Figure 1-4 This utility model provides a tobacco leaf screening device in a tobacco processing machine, including a screening box 1. A first hinge seat 4 is fixedly installed on one side of the inner wall of the screening box 1. A first connecting strip 5 is hinged to the side of the first hinge seat 4 away from the inner wall of the screening box 1. A second hinge seat 6 is fixedly installed on one side of the top of the inner wall of the screening box 1. An electric telescopic rod 7 is hinged to the bottom end of the second hinge seat 6. A third hinge seat 8 is hinged to the bottom end of the electric telescopic rod 7. A second connecting strip 9 is fixedly installed at the bottom end of the third hinge seat 8. A screening seat 10 is engaged at the top between the second connecting strip 9 and the first connecting strip 5. Several [unclear text - possibly related to a device or component] are fixedly installed at the bottom ends of the first connecting strip 5 and the third hinge seat 8. The third hinge seat 8 and the bottom of the screening box 1 are slidably provided with a collection box 2. The tobacco leaves to be screened are introduced into the screening seat 10 in the screening box 1 through the feed hopper 3. Then, the electric telescopic rod 7 drives the third hinge seat 8 to move up and down, thereby driving the second connecting bar 9 to move up and down, and then driving the screening seat 10 to rotate back and forth around the first hinge seat 4 as the axis. This allows the tobacco leaves in the screening seat 10 to move back and forth on the screening seat 10, which can prevent the tobacco leaves from accumulating in the screening seat 10 and causing blockage, thereby improving the screening efficiency. At the same time, several vibrating motors 13 are energized to generate vibration, thereby driving the screening seat 10 to vibrate, thereby accelerating the screening of tobacco leaves.

[0021] A feed hopper 3 is fixedly connected to the middle of the top of the screening box 1. The feed hopper 3 is correspondingly set with the screening seat 10. A connecting slot 11 is opened at the connection between the first connecting strip 5 and the screening seat 10 and at the connection between the third hinge seat 8 and the screening seat 10. A connecting block 12 is engaged inside the two connecting slots 11. The two connecting blocks 12 are fixedly connected to the screening seat 10. Two sliding grooves 14 are opened at the connection between the screening box 1 and the collection box 2. Two sliders 15 are fixedly set at the connection between the collection box 2 and the screening box 1. The two sliding grooves 14 are slidably connected to the two sliders 15 respectively.

[0022] In use, the tobacco leaves to be screened are fed into the screening seat 10 in the screening box 1 through the feed hopper 3. The screening seat 10 is fixed by the two connecting blocks 12 respectively engaging with the two connecting slots 11. The collection box 2 is moved stably by the two sliders 15 respectively engaging with the two sliding grooves 14.

[0023] The screening box 1 has a hinged sealing door 17 on the front. An auxiliary handle 19 is fixedly installed on one side of the front of the sealing door 17. An observation window 18 is fixedly installed on the top of the front of the sealing door 17. A control panel 16 is fixedly installed on one side of the screening box 1. The electric telescopic rod 7 and several vibration motors 13 are all electrically connected to the control panel 16.

[0024] In use, the sealing door 17 provides a sealing and protection function, the observation window 18 facilitates observation of the situation inside the screening box 1, and the control panel 16 controls the electric telescopic rod 7 and several vibration motors 13 to be powered on and start working.

[0025] In this embodiment, the tobacco leaves to be screened are fed into the screening seat 10 inside the screening box 1 via the feed hopper 3. Then, the electric telescopic rod 7 drives the third hinge seat 8 to move up and down, thereby driving the second connecting bar 9 to move up and down. This causes the screening seat 10 to rotate back and forth around the first hinge seat 4, allowing the tobacco leaves inside the screening seat 10 to move back and forth. This prevents the tobacco leaves from accumulating inside the screening seat 10 and causing blockage, thus improving screening efficiency. At the same time, several vibrating motors 13 are energized to generate vibration, which in turn causes the screening seat 10 to vibrate, thereby accelerating the screening of the tobacco leaves.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tobacco leaf screening device in a tobacco processing machine, comprising a screening box (1), characterized in that: A first hinge seat (4) is fixedly provided on one side of the inner wall of the screening box (1). A first connecting strip (5) is hinged to the side of the first hinge seat (4) away from the inner wall of the screening box (1). A second hinge seat (6) is fixedly provided on one side of the top of the inner wall of the screening box (1). An electric telescopic rod (7) is hinged to the bottom of the second hinge seat (6). A third hinge seat (8) is hinged to the bottom of the electric telescopic rod (7). A second connecting strip (9) is fixedly provided at the bottom of the third hinge seat (8). A screening seat (10) is engaged between the second connecting strip (9) and the first connecting strip (5). Several third hinge seats (8) are fixedly installed at the bottom of the first connecting strip (5) and the bottom of the third hinge seat (8). A collection box (2) is slidably provided at the bottom of the inner side of the screening box (1).

2. The tobacco leaf screening device in a tobacco processing machine according to claim 1, characterized in that: The top center of the screening box (1) is fixedly connected to the feed hopper (3), and the feed hopper (3) is correspondingly arranged with the screening seat (10).

3. The tobacco leaf screening device in a tobacco processing machine according to claim 1, characterized in that: A connecting slot (11) is provided at the connection between the first connecting strip (5) and the screening seat (10) and at the connection between the third hinge seat (8) and the screening seat (10). A connecting block (12) is engaged inside each of the two connecting slots (11), and the two connecting blocks (12) are fixedly connected to the screening seat (10).

4. The tobacco leaf screening device in a tobacco processing machine according to claim 1, characterized in that: Two sliding grooves (14) are provided at the connection between the screening box (1) and the collection box (2). Two sliders (15) are fixedly provided at the connection between the collection box (2) and the screening box (1). The two sliding grooves (14) are slidably connected to the two sliders (15) respectively.

5. The tobacco leaf screening device in a tobacco processing machine according to claim 1, characterized in that: The screening box (1) is hinged to a sealing door (17) on the front, and an auxiliary handle (19) is fixedly provided on one side of the front of the sealing door (17).

6. The tobacco leaf screening device in a tobacco processing machine according to claim 5, characterized in that: An observation window (18) is fixedly installed on the top of the front of the sealed door (17).

7. The tobacco leaf screening device in a tobacco processing machine according to claim 1, characterized in that: A control panel (16) is fixedly installed on one side of the screening box (1), and the electric telescopic rod (7) and several vibration motors (13) are electrically connected to the control panel (16).