Tobacco sample timed cut-off loading device

By designing a timed cutting and feeding device for tobacco samples, the problems of low tobacco weighing efficiency and uneven feeding were solved, thereby improving the uniformity of tobacco length and the pass rate of weighing, and ensuring the quality of cigarettes and the reliability of testing.

CN224320219UActive Publication Date: 2026-06-05ZHENGZHOU TOBACCO RES INST OF CNTC +5

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENGZHOU TOBACCO RES INST OF CNTC
Filing Date
2025-05-23
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In existing technologies, the efficiency and accuracy of tobacco shred weighing are low, and the difference in tobacco shred length leads to uneven feeding, which affects the quality of cigarettes and test results.

Method used

Design a timed cutting and feeding device for tobacco samples. The device uses a vibrating trough and a pushing and lifting mechanism to cut the tobacco at timed intervals, ensuring uniform length of tobacco. The vibrating plate is used to achieve uniform feeding.

Benefits of technology

It improved the pass rate of tobacco weighing, ensured the uniformity of tobacco feeding, and enhanced the quality of filling and the efficiency of preparation and testing of formulated cigarettes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The tobacco sample timing cutting and feeding device comprises a bottom plate, a vibrating disc, a vibrating groove, a blade and a pushing and lifting mechanism; the vibrating disc is installed on the upper surface of one side of the bottom plate; the vibrating groove is arranged on one side of the vibrating disc and extends horizontally towards the vibrating disc, the vibrating groove is higher than the vibrating disc, the vibrating groove is open at the end towards the vibrating disc and is above the vibrating disc, and the other end of the vibrating groove is blocked; the blade is transversely arranged on the inner upper part of the vibrating groove and is installed on the pushing and lifting mechanism, the pushing and lifting mechanism is arranged above the vibrating groove through a supporting frame, the pushing and lifting mechanism drives the blade to move up and down at a timing, and the blade can cut tobacco when moving downwards; the bottom plate is further provided with a vibrating mechanism for driving the vibrating groove to vibrate linearly towards the vibrating disc. The tobacco sample timing cutting and feeding device can cut tobacco at a timing, ensure the uniformity of the length of tobacco, further ensure the uniformity of tobacco feeding, improve the qualified rate of weighing, ensure the quality of tobacco filling, and be beneficial to the preparation and testing of formula cigarettes.
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Description

Technical Field

[0001] This utility model relates to the technical field of cigarette testing equipment, specifically to a timed cutting and feeding device for tobacco samples. Background Technology

[0002] In cigarette production, while ensuring the safety of tobacco products, the satisfaction and comfort of smokers must also be considered. Studies have shown that the intrinsic qualities of cigarettes, such as the ingredient ratios, tobacco filling density, and filling uniformity, all affect aroma quality and the release of harmful components in the smoke. Therefore, tobacco company laboratory personnel alter the ingredient ratios of tobacco products to improve the intrinsic quality of cigarettes, thereby developing new formulated tobacco products. When developing new formulated tobacco products, it is necessary to prepare cigarettes from the pre-mixed formulated tobacco for aroma testing. However, because these are experimental samples, the amount of formulated tobacco is small, making it impossible to prepare formulated cigarettes on a cigarette production line. Therefore, to more easily obtain formulated cigarettes, laboratory personnel use a cigarette-filling device to fill empty cigarette canisters with tobacco.

[0003] The preparation of blended cigarettes requires the precise weighing of a fixed amount of tobacco shreds. Currently, most laboratory personnel still weigh the tobacco shreds manually, which is inefficient, has poor weighing accuracy, and is labor-intensive. Although there are automated equipment for weighing and feeding tobacco shreds, the tobacco shreds are unevenly fed due to differences in length, with some shreds being too long. This results in a low weighing pass rate, which in turn affects the quality of the filling and the preparation and testing of blended cigarettes.

[0004] In order to solve the above problems, people have been seeking an ideal technological solution. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a timed cutting and feeding device for tobacco samples. This invention can cut tobacco at regular intervals, ensuring uniform tobacco length, thereby ensuring uniform feeding of tobacco, improving the weighing qualification rate, ensuring the quality of filled tobacco, and facilitating the preparation and testing of formulated cigarettes.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a timed cutting and feeding device for tobacco samples, including a base plate, a vibrating plate, a vibrating groove, a blade, and a pushing and lifting mechanism; the vibrating plate is installed on one side of the upper surface of the base plate and is used to receive tobacco falling from the vibrating groove and uniformly feed the tobacco to the weighing device of the next process; the vibrating groove is set on one side of the vibrating plate and extends horizontally towards the vibrating plate, the vibrating groove is higher than the vibrating plate, one end of the vibrating groove is open and located above the vibrating plate, and the other end of the vibrating groove is sealed. The tobacco material enters the vibrating groove from the upper side of the sealed end of the vibrating groove. The vibration of the vibrating groove drives the tobacco to move uniformly towards the open end of the vibrating groove at a constant speed, and causes the tobacco to fall into the vibrating plate through the open end of the vibrating groove; the blade is horizontally set in the upper inner part of the vibrating groove and is installed on the pushing and lifting mechanism. The pushing and lifting mechanism is set above the vibrating groove through a support frame. The pushing and lifting mechanism drives the blade to move up and down at regular intervals. When the blade moves down, it can cut the tobacco; a vibrating mechanism is also provided on the base plate to drive the vibrating groove to vibrate linearly towards the vibrating plate.

[0007] Based on the above, the pushing and lifting mechanism includes a cylinder, which is fixed on the support frame and vertically positioned directly above the vibration groove. The lower end of the piston rod of the cylinder extends into the vibration groove and is fixedly installed with a tobacco pressing plate. The blade is fixedly installed on the side of the tobacco pressing plate facing the open end of the vibration groove. The lower side of the blade is the cutting edge and is lower than the bottom surface of the tobacco pressing plate.

[0008] Based on the above, the vibration mechanism includes a straight vibrator mounted on the base plate, the straight vibrator being located on one side of the vibrating plate, and the vibration groove being fixedly mounted on the top of the straight vibrator.

[0009] Based on the above, a feed funnel is fixedly installed on the upper part of the vibration trough near the sealing end.

[0010] Based on the above, the cross-sectional shape of the vibration groove is wider at the top and narrower at the bottom.

[0011] Based on the above, the upper part of the vibration groove is a trapezoidal groove that is wider at the top and narrower at the bottom, and the lower part is a rectangular groove.

[0012] Based on the above, the cylinder is a thin-walled cylinder with a guide rod.

[0013] Based on the above, the support frame is a gantry spanning above the vibration groove. The bottom of the two side plates of the support frame are fixed to the base plate. The cylinder is fixedly installed on the lower surface of the top plate of the support frame. An infrared sensor for detecting tobacco is fixedly installed on the side of the top plate of the support frame near the vibration plate.

[0014] This invention has substantial features and advancements compared to existing technologies. Specifically, this invention uses a pushing and lifting mechanism to drive the blade to cut the tobacco shreds moving at a uniform speed in the vibrating groove at regular intervals, ensuring that the length of the tobacco shreds entering the vibrating plate through the vibrating groove is uniform. The vibrating plate then feeds the uniformly long tobacco shreds to the weighing device in the next process in an orderly manner, thereby ensuring uniform feeding of tobacco shreds, improving the weighing qualification rate, ensuring the quality of filling tobacco, and facilitating the preparation and testing of formulated cigarettes. Attached Figure Description

[0015] Figure 1 This is the axial view of the present invention. Figure 1 .

[0016] Figure 2 This is the axial view of the present invention. Figure 2 The vibrating trough and feed hopper are not shown.

[0017] Figure 3 This is the front view of this utility model.

[0018] Figure 4 yes Figure 3 The left view.

[0019] Figure 5 yes Figure 3 Top view.

[0020] In the diagram: 1. Base plate; 2. Vibratory plate; 3. Vibration groove; 4. Blade; 5. Cylinder; 6. Support frame; 7. Tobacco pressing plate; 8. Straight vibrator; 9. Feed funnel; 10. Infrared sensor; 11. Base. Detailed Implementation

[0021] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0022] Example 1

[0023] like Figures 1-5As shown, the tobacco sample timed cutting and feeding device includes a base plate 1, a vibrating plate 2, a vibrating groove 3, a blade 4, and a pushing and lifting mechanism. The vibrating plate 2 is installed on one side of the upper surface of the base plate 1 and is used to receive the tobacco falling from the vibrating groove 3 and evenly feed the tobacco to the weighing device of the next process. The vibrating groove 3 is located on one side of the vibrating plate 2 and extends horizontally towards the vibrating plate 2. The vibrating groove 3 is higher than the vibrating plate 2. One end of the vibrating groove 3 facing the vibrating plate 2 is open and located above the vibrating plate 2, while the other end of the vibrating groove 3 is sealed. The tobacco feed is fed from the vibrating plate 2... The upper side of the sealing end of the moving groove 3 enters the vibrating groove 3. The vibration of the vibrating groove 3 drives the tobacco to move uniformly towards the open end of the vibrating groove 3 at a constant speed, and the tobacco falls into the vibrating plate 2 through the open end of the vibrating groove 3. The blade 4 is horizontally arranged in the upper part of the vibrating groove 3 and is installed on the pushing and lifting mechanism. The pushing and lifting mechanism is set above the vibrating groove 3 through the support frame 6. The pushing and lifting mechanism drives the blade 4 to move up and down at regular intervals. When the blade 4 moves down, it can cut the tobacco. The bottom plate 1 is also provided with a vibration mechanism that drives the vibrating groove 3 to vibrate linearly towards the vibrating plate 2.

[0024] In this embodiment, the pushing and lifting mechanism includes a cylinder 5, which is fixed on the support frame 6 and vertically positioned directly above the vibration groove 3. The lower end of the piston rod of the cylinder 5 extends into the vibration groove 3 and is fixedly installed with a tobacco pressing plate 7. The blade 4 is fixedly installed on the side of the tobacco pressing plate 7 facing the open end of the vibration groove 3 by screws. The lower side of the blade 4 is a cutting edge and is lower than the bottom surface of the tobacco pressing plate 7.

[0025] Preferably, cylinder 5 is a thin-walled cylinder with a guide rod. In other embodiments, cylinder 5 can be replaced by a hydraulic cylinder or an electric cylinder.

[0026] Preferably, the support frame 6 is a gantry spanning above the vibration groove 3, with the bottom of the two side plates of the support frame 6 fixed to the base plate 1, and the cylinder 5 fixedly installed on the lower surface of the top plate of the support frame 6.

[0027] In this embodiment, the vibration mechanism includes a straight vibrator 8, a base 11 is provided at the bottom of the straight vibrator 8, the straight vibrator 8 is mounted on the base plate 1 through the base 11, the straight vibrator 8 is located on one side of the vibrating plate 2, and the vibration groove 3 is fixedly installed on the top of the straight vibrator 8.

[0028] In this embodiment, a feed funnel 9 is fixedly installed on the upper part of the vibration groove 3 near the sealing end.

[0029] Vibratory plate 2, cylinder 5 and linear vibrator 8 are all existing technologies, and their specific structures and working principles will not be described in detail.

[0030] In this embodiment, the tobacco shreds enter the vibrating trough 3 through the feed funnel 9. The linear vibrator 8 drives the vibrating trough 3 to vibrate linearly toward the vibrating plate 2, causing the tobacco shreds to move uniformly toward the open end of the vibrating trough 3. When the tobacco shreds have moved a certain distance in the vibrating trough 3, the cylinder 5 is activated. The piston rod of the cylinder 5 extends and pushes the tobacco pressing plate 7 downward. The tobacco pressing plate 7 presses down on the tobacco shreds below, and at the same time, the blade 4 cuts the tobacco shreds. The piston rod of the cylinder 5 retracts, causing the tobacco pressing plate 7 to move upward and reset. The blade 4 moves upward and resets with the tobacco pressing plate 7. The tobacco shreds continue to move within the vibrating trough 3. After a certain period of time, the cylinder 5 actuates again, and the blade 4 cuts the tobacco shreds again. This process is repeated, allowing the blade 4 to cut the tobacco shreds at regular intervals, ensuring that the cut tobacco shreds are of uniform length. When the cut tobacco shreds move to the open end of the vibrating trough 3, they fall into the vibrating plate 2. The vibrating plate 2 then feeds the tobacco shreds of uniform length to the weighing device in the next process in an orderly manner, thereby ensuring uniform feeding of tobacco shreds, improving the weighing qualification rate, ensuring the quality of filling tobacco, and facilitating the preparation and testing of formulated cigarettes.

[0031] Example 2

[0032] Based on Example 1, the cross-sectional shape of the vibration groove 3 is wider at the top and narrower at the bottom.

[0033] Preferably, the upper part of the vibration groove 3 is a trapezoidal groove that is wider at the top and narrower at the bottom, and the lower part is a rectangular groove. This allows the tobacco to enter the vibration groove 3 more smoothly.

[0034] Example 3

[0035] To prevent cylinder 5 from running dry, based on embodiment 1, an infrared sensor 10 for detecting tobacco is fixedly installed on the top plate of support frame 6 near the vibrating plate 2. When the infrared sensor 10 fails to detect tobacco in the vibrating groove 3, it sends a feedback signal to the control system of cylinder 5, causing cylinder 5 to stop working, thereby preventing cylinder 5 from running dry.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A timed cutting and feeding device for tobacco samples, characterized in that: The system includes a base plate, a vibrating plate, a vibrating groove, blades, and a pushing and lifting mechanism. The vibrating plate is installed on one side of the upper surface of the base plate and is used to receive tobacco shreds falling from the vibrating groove and to evenly feed the tobacco shreds to the next process. The vibrating groove is located on one side of the vibrating plate and extends horizontally towards the vibrating plate. The vibrating groove is higher than the vibrating plate, with one end of the vibrating groove open and located above the vibrating plate. The other end of the vibrating groove is sealed. The tobacco shreds enter the vibrating groove from the upper side of the sealed end. The vibration of the vibrating groove drives the tobacco shreds to move evenly towards the open end of the vibrating groove at a uniform speed, and the tobacco shreds fall into the vibrating plate through the open end of the vibrating groove. The blades are horizontally arranged in the upper inner part of the vibrating groove and are installed on the pushing and lifting mechanism. The pushing and lifting mechanism is located above the vibrating groove through a support frame. The pushing and lifting mechanism drives the blades to move up and down at regular intervals. When the blades move down, they can cut the tobacco shreds. The base plate is also equipped with a vibrating mechanism that drives the vibrating groove to vibrate linearly towards the vibrating plate.

2. The tobacco sample timed cutting and feeding device according to claim 1, characterized in that: The pushing and lifting mechanism includes a cylinder, which is fixed on the support frame and vertically positioned directly above the vibration groove. The lower end of the piston rod of the cylinder extends into the vibration groove and is fixedly installed with a tobacco pressing plate. The blade is fixedly installed on the side of the tobacco pressing plate facing the open end of the vibration groove. The lower side of the blade is the cutting edge and is lower than the bottom surface of the tobacco pressing plate.

3. The tobacco sample timed cutting and feeding device according to claim 1 or 2, characterized in that: The vibration mechanism includes a straight vibrator mounted on a base plate, which is located on one side of the vibrating plate, and a vibration groove is fixedly mounted on the top of the straight vibrator.

4. The tobacco sample timed cutting and feeding device according to claim 1 or 2, characterized in that: A feed funnel is fixedly installed on the upper part of the vibrating trough near the sealing end.

5. The tobacco sample timed cutting and feeding device according to claim 4, characterized in that: The cross-sectional shape of the vibration trough is wider at the top and narrower at the bottom.

6. The tobacco sample timed cutting and feeding device according to claim 5, characterized in that: The upper part of the vibration groove is a trapezoidal groove that is wider at the top and narrower at the bottom, and the lower part is a rectangular groove.

7. The tobacco sample timed cutting and feeding device according to claim 2, characterized in that: The cylinder is a thin-walled cylinder with a guide rod.

8. The tobacco sample timed cutting and feeding device according to claim 2 or 7, characterized in that: The support frame is a gantry spanning above the vibration groove. The bottom of the two side plates of the support frame are fixed to the base plate. The cylinder is fixedly installed on the lower surface of the top plate of the support frame. An infrared sensor for detecting tobacco is fixedly installed on the side of the top plate of the support frame near the vibration plate.