Tobacco stem harvesting device

Abstract

The utility model relates to the technical field of tobacco manufacturing, in particular to a tobacco stem harvesting device which comprises a feeding transmission belt, material clamping structures and a cutter assembly, the material clamping structures are installed on the feeding transmission belt at equal intervals, and the cutter assembly is fixedly installed in the center of the top face of the feeding transmission belt. The cutting frequency of the cutter assembly is equal to the replacement frequency of the material clamping structures. The mode that the cutter assembly and the feeding structure are combined is adopted. Raw leaves are conveyed to the cutter assembly in a unified mode through the feeding structure, tobacco raw leaf stems are cut in a unified mode through the cutter body with the 45-degree angle, the cutting and harvesting angle and the section inclination degree are guaranteed, and the harvesting efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of tobacco manufacturing technology, specifically to a tobacco harvesting device with stems. Background Technology

[0002] The upper leaves of flue-cured tobacco have a significant impact on the overall yield and quality of flue-cured tobacco. High-quality upper leaves play a leading role in the formulation of modern blended cigarettes and low-tar flue-cured cigarette leaf blends, greatly influencing the aroma and style of the cigarettes. With the deepening of the "tar reduction and harm reduction" campaign, the problems of insufficient aroma and reduced usability of the middle and lower leaves after tar reduction treatment have become increasingly prominent. In addition, with the rapid development of medium, slim, and low-tar cigarettes, there is an urgent need to use mature upper leaves to compensate for the lack of aroma quality and quantity. Therefore, the importance of the quality of upper leaves is becoming increasingly important.

[0003] With the increasing adoption of the technique of curing the upper leaves of flue-cured tobacco with the stem intact, it is now required that the upper leaves, with 4-6 leaves fully matured, be harvested in one go. During harvesting, the leaves should be cut 2-4 cm from the lowest leaf, at a 30° to 45° angle to the stem; hand-breaking is strictly prohibited. To ensure the exchange and circulation of water between the stem and leaves, the stem must not be broken; it must be cut with a knife, and the cut surface should be oblique, not flat. The traditional method of harvesting the upper leaves of flue-cured tobacco with the stem intact is inefficient, labor-intensive, and lacks precision in cutting dimensions, thus reducing harvesting efficiency.

[0004] In view of this, there is an urgent need to design a tobacco harvesting device with stems, which combines a cutting assembly and a feeding structure. The feeding structure uniformly transports the fresh leaves to the cutting assembly, and the cutting blade at a 45° angle uniformly cuts the stems of the tobacco leaves, ensuring the cutting angle and cross-sectional inclination, thus improving harvesting efficiency. Utility Model Content

[0005] To address the shortcomings of the existing technology, the present invention aims to provide a tobacco stem harvesting device, comprising: a feeding conveyor belt, a clamping structure, and a cutting assembly. The clamping structures are installed at equal intervals on the feeding conveyor belt, and the cutting assembly is fixedly installed at the center of the top surface of the feeding conveyor belt. The cutting frequency of the cutting assembly is equal to the replacement frequency between the clamping structures.

[0006] Furthermore, the feeding transmission belt includes: a transmission belt frame, a transmission belt body, a transmission roller, and a drive motor. The transmission roller is rotatably mounted on both sides of the transmission belt frame, and the drive motor is fixedly mounted on one side of the transmission belt frame. The drive motor is poweredly connected to the transmission roller, and the transmission belt body is wound around the outer diameter surface of the transmission roller.

[0007] Furthermore, the clamping structure includes: a rubber mounting base, a mounting groove, and a mounting slot. The rubber mounting base is fixedly mounted on the top surface of the transmission belt body, the mounting groove is fixedly mounted on the top surface of the rubber mounting base, and the mounting groove and the mounting slot are detachably connected.

[0008] Furthermore, the mounting slot has pile holes at equal intervals along the vertical direction, and tobacco leaves can be inserted into the pile holes.

[0009] Furthermore, the cutter assembly includes a cutter body and a crossover bracket, the cutter body being fixedly mounted on the crossover bracket, and the crossover bracket being fixedly mounted on the side wall of the drive belt frame.

[0010] Furthermore, the cutter body includes: a cutter motor, an eccentric wheel, a connecting arm, and a cutter disc. The cutter motor is fixedly installed on the bottom surface of the cutter body and passes through the cutter body to be poweredly connected to the eccentric wheel. The eccentric wheel and the cutter disc are poweredly connected through the connecting arm. A cutter head is fixedly installed at the end of the cutter disc, and the cutting edge of the cutter head is at a 45° angle.

[0011] Beneficial effects:

[0012] This utility model provides a tobacco stem-harvesting device that combines a cutting assembly and a feeding structure. The feeding structure uniformly transports the fresh leaves to the cutting assembly, where a 45° angled cutting blade uniformly cuts the stem of the tobacco leaves, ensuring the cutting angle and cross-sectional inclination, thus improving harvesting efficiency. Attached Figure Description

[0013] Figure 1 This is a front view schematic diagram of a tobacco harvesting device with stems according to the present invention;

[0014] The markings in the diagram are: 1-feeding conveyor belt, 2-material clamping structure, 3-cutting assembly, 11-transmission belt frame, 12-transmission belt body, 13-transmission roller, 14-drive motor, 21-rubber mounting seat, 22-mounting groove, 23-mounting slot, 31-cutting body, 32-bridge bracket, 311-cutting motor, 312-eccentric wheel, 313-connecting arm, 314-cutting disc, 315-cutting head. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0016] As shown in the figure, this utility model discloses a tobacco stem harvesting device, including: a feeding transmission belt 1, a clamping structure 2, and a cutting assembly 3. The clamping structures 2 are installed at equal intervals on the feeding transmission belt 1, and the cutting assembly 3 is fixedly installed at the center of the top surface of the feeding transmission belt 1. The cutting frequency of the cutting assembly 3 is equal to the replacement frequency of the clamping structures 2.

[0017] In this embodiment, the feeding transmission belt 1 includes: a transmission belt frame 11, a transmission belt body 12, a transmission roller 13, and a drive motor 14. The transmission roller 13 is rotatably mounted on both sides of the transmission belt frame 11, and the drive motor 14 is fixedly mounted on one side of the transmission belt frame 11. The drive motor 14 is poweredly connected to the transmission roller 13, and the transmission belt body 12 is wound around the outer diameter surface of the transmission roller 13.

[0018] In this embodiment, the clamping structure 2 includes: a rubber mounting base 21, a mounting groove 22, and a mounting slot 23. The rubber mounting base 21 is fixedly mounted on the top surface of the transmission belt body 12, and the mounting groove 22 is fixedly mounted on the top surface of the rubber mounting base 21. The mounting groove 22 and the mounting slot 23 are detachably connected.

[0019] In this embodiment, the mounting slot 23 has pile holes at equal intervals along the vertical direction, and tobacco leaves can be inserted into the pile holes.

[0020] In this embodiment, the cutter assembly 3 includes a cutter body 31 and a crossover frame 32. The cutter body 31 is fixedly mounted on the crossover frame 32, and the crossover frame 32 is fixedly mounted on the side wall of the transmission belt frame 11.

[0021] In this embodiment, the cutter body 31 includes: a cutter motor 311, an eccentric wheel 312, a connecting arm 313, and a cutter disc 314. The cutter motor 311 is fixedly installed on the bottom surface of the cutter body 31 and passes through the cutter body 31 to be poweredly connected to the eccentric wheel 312. The eccentric wheel 312 and the cutter disc 314 are poweredly connected through the connecting arm 313. A cutter head 315 is fixedly installed at the end of the cutter disc 314, and the cutting edge of the cutter head 315 is at a 45° angle.

[0022] Working principle:

[0023] First, the roughly harvested tobacco leaves are inserted into the clamping structure 2. Since the clamping structure 2 has holes in the vertical direction, each hole can only accommodate a tobacco leaf stem segment. The tobacco leaves are inserted into the clamping structure 2 at equal intervals to form tobacco leaf rows.

[0024] The replacement frequency between the clamping structures 2 and the cutting frequency of the cutting assembly 3 are the same. When the clamping structure 2 moves to the center of the feeding conveyor belt 1, the cutting assembly 3 advances to cut the stem segment.

[0025] In this system, the drive motor 14 of the feeding conveyor belt 1 drives the transmission roller 13 to rotate, and the outer diameter surface of the transmission roller 13 is wrapped with the transmission belt body 12. When the drive motor 14 is working, the drive motor 14 drives the transmission roller 13 to rotate, thereby driving the transmission belt body 12 to synchronize its frequency.

[0026] The cutter assembly 3 is composed of a cutter body 31 and a crossover frame 32. The cutter body 31 is fixedly installed on the top surface of the crossover frame 32, and the crossover frame 32 is fixedly installed on the side wall of the transmission belt frame 11.

[0027] The cutter assembly 3 consists of a cutter motor 311, an eccentric wheel 312, a connecting arm 313, and a cutter disc 314. The cutter motor 311 drives the eccentric wheel 312 to rotate. The connecting arm 313 is connected to the top surface of the eccentric wheel 312 and the cutter disc 314. The rotation of the eccentric wheel 312 drives the connecting arm 313 to move, and the connecting arm 313 drives the cutter disc 314 to perform reciprocating extension and retraction motion.

[0028] The cutting disc 314 is equipped with a blade 315, the cutting edge of which is at a 45° angle, thus ensuring that the cuts of the stem segments are all at a 45° angle.

[0029] This utility model provides a tobacco stem-harvesting device that combines a cutting assembly 3 and a feeding structure. The feeding structure uniformly transports the fresh leaves to the cutting assembly 3, and the cutting blade 31 at a 45° angle uniformly cuts the stem of the tobacco leaves, ensuring the cutting angle and cross-sectional inclination, thus improving harvesting efficiency.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tobacco harvesting device with stem, comprising: The feeding conveyor belt (1), the clamping structure (2) and the cutting assembly (3) are characterized in that the clamping structure (2) is installed at equal intervals on the feeding conveyor belt (1), the cutting assembly (3) is fixedly installed at the center of the top surface of the feeding conveyor belt (1), and the cutting frequency of the cutting assembly (3) is equal to the replacement frequency between the clamping structures (2).

2. The tobacco harvesting device with stem as described in claim 1, characterized in that, The feeding transmission belt (1) includes: a transmission belt frame (11), a transmission belt body (12), a transmission roller (13), and a drive motor (14). The transmission roller (13) is rotatably mounted on both sides of the transmission belt frame (11). The drive motor (14) is fixedly mounted on one side of the transmission belt frame (11). The drive motor (14) is poweredly connected to the transmission roller (13). The transmission belt body (12) is wrapped around the outer diameter surface of the transmission roller (13).

3. A tobacco harvesting device with stems according to claim 2, characterized in that, The clamping structure (2) includes: a rubber mounting base (21), a mounting groove (22) and a mounting slot (23). The rubber mounting base (21) is fixedly installed on the top surface of the transmission belt body (12), and the mounting groove (22) is fixedly installed on the top surface of the rubber mounting base (21). The mounting groove (22) and the mounting slot (23) are detachably connected.

4. A tobacco harvesting device with stems according to claim 3, characterized in that, The mounting slot (23) has pile holes at equal intervals along the vertical direction, and tobacco leaves can be inserted into the pile holes.

5. A tobacco harvesting device with stems according to claim 4, characterized in that, The cutter assembly (3) includes a cutter body (31) and a crossover bracket (32), wherein the cutter body (31) is fixedly mounted on the crossover bracket (32), and the crossover bracket (32) is fixedly mounted on the side wall of the transmission belt frame (11).

6. A tobacco harvesting device with stems according to claim 5, characterized in that, The cutter body (31) includes: a cutter motor (311), an eccentric wheel (312), a connecting arm (313), and a cutter disc (314). The cutter motor (311) is fixedly installed on the bottom surface of the cutter body (31) and passes through the cutter body (31) to be poweredly connected to the eccentric wheel (312). The eccentric wheel (312) and the cutter disc (314) are poweredly connected through the connecting arm (313). A cutter head (315) is fixedly installed at the end of the cutter disc (314), and the cutting edge of the cutter head (315) is at a 45° angle.

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