A wide and narrow tobacco rod manufacturing device

By using blades that are not uniformly distributed in the rotation direction and adjusting the feeding speed, the problem of existing equipment being unable to produce tobacco shreds of different widths has been solved, enabling the adjustment of tobacco shred width and the uniformity of mixing, thereby improving the quality of cigarettes and the smoking experience.

CN116548648BActive Publication Date: 2026-05-29CHONGQING CHINA TOBACCO IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHONGQING CHINA TOBACCO IND CO LTD
Filing Date
2023-04-10
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing tobacco manufacturing equipment cannot efficiently produce tobacco of different widths, which affects the quality stability of cigarettes and the smoking experience, and also results in poor mixing uniformity.

Method used

Multiple blades that are not uniformly distributed in the rotation direction are used. By adjusting the included angle between the blades and the feeding speed, non-uniform cutting of tobacco leaves is achieved, forming tobacco shreds of different widths. The blade position is adjusted by a sliding seat and a locking mechanism to achieve initial mixing.

Benefits of technology

This technology allows the same batch of tobacco leaves to be cut into tobacco shreds of different widths, improving the quality stability of cigarettes and the smoking experience, while also enhancing the uniformity of the mixture.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application belongs to the technical field of tobacco manufacturing, and particularly relates to a wide and narrow tobacco manufacturing device, which comprises a driving motor, a knife door assembly and a feeding assembly installed on a rack, a cutting assembly fixedly installed at the power output end of the driving motor, the feeding assembly, the knife door assembly and the cutting assembly arranged in sequence from top to bottom, the cutting assembly comprising a connecting shaft, the connecting shaft being fixedly provided with a mounting disc, the outer edge of the mounting disc being provided with a plurality of mounting seats, the mounting seats being installed with blades, the cutting edges of the plurality of blades being in the same plane, the included angle between the blade and the previous blade in the rotating direction of the cutting assembly being alpha, and the plurality of alphas being not completely equal. The purpose is to cut the tobacco leaves uniformly fed by the feeding mechanism in sequence and circulation through the plurality of blades non-uniformly distributed in the rotating direction, so that the widths of the two cut tobaccos are not completely equal, and the same batch of tobacco leaves are cut into tobaccos with different widths, and preliminary mixing is completed.
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Description

Technical Field

[0001] This invention belongs to the field of tobacco manufacturing technology, and specifically relates to a device for manufacturing wide and narrow tobacco shreds. Background Technology

[0002] In actual cigarette production, we have found that filling cigarettes with tobacco of different widths will change the amount of tobacco filling, draw resistance, and tar content of cigarettes of the same specification, thereby changing the smoking experience.

[0003] To ensure the stability of cigarette quality, existing tobacco shreds are generally made of the same width and used to fill cigarettes of the same specification. However, this method has not been used to fill a single cigarette with tobacco shreds of different widths. Our company has discovered through experiments that filling a certain number of tobacco shreds of different widths into the same cigarette can result in a better smoking experience.

[0004] However, the tobacco cutting equipment on the market is designed to cut tobacco shreds of the same width. If you want the same batch of tobacco shreds to have different widths, you can only cut them in batches and then mix them. The uniformity of the tobacco shreds will seriously affect the quality of the tobacco shreds. Summary of the Invention

[0005] The purpose of this invention is to provide a device for manufacturing tobacco shreds of varying widths. By using multiple blades that are not uniformly distributed in the rotational direction to sequentially and cyclically cut tobacco leaves fed at a uniform speed by a feeding mechanism, the time difference between the first set of blades cutting the tobacco leaves and the time difference between the second set of blades cutting the tobacco leaves and the third set of blades cutting the tobacco leaves creates a difference. This results in tobacco shreds of different widths being cut from the same batch of tobacco leaves, and so on, thereby achieving the purpose of cutting tobacco shreds of different widths from the same batch of tobacco leaves and completing the initial mixing.

[0006] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:

[0007] A wide and narrow tobacco shred manufacturing apparatus includes a drive motor, a knife gate assembly, and a feeding assembly for uniformly conveying tobacco leaves, all mounted on a frame. A cutting assembly is fixedly mounted on the power output end of the drive motor. The feeding assembly, knife gate assembly, and cutting assembly are arranged sequentially from top to bottom. The cutting assembly includes a connecting shaft, on which a mounting plate is fixedly mounted. Multiple mounting seats are provided on the outer edge of the mounting plate, and blades are mounted on the mounting seats. The cutting edges of the multiple blades are on the same plane, and the angle between each blade and the previous blade in the rotation direction of the cutting assembly is α. The multiple α values ​​are not necessarily equal.

[0008] Furthermore, the included angle between the two blades is adjustable. This structural design allows for adjustment of the width of the cut tobacco shreds by adjusting the position of the blades.

[0009] Furthermore, an arc-shaped guide rail is fixedly mounted on the mounting base. The center point of the arc of the guide rail coincides with the central axis of the connecting shaft. A sliding seat is slidably mounted on the mounting base via the arc-shaped guide rail. The blade is fixedly mounted on the sliding seat, and a locking mechanism is installed between the mounting base and the sliding seat. This structural design, through the sliding mounting of the sliding seat on the arc-shaped guide rail and the locking mechanism, allows for adjustment of the position of the blade mounted on the sliding seat, thereby achieving the purpose of adjusting the included angle α. This makes it more convenient to use and more practical.

[0010] Further defined, the locking mechanism includes a top-pressing bolt and multiple locking bolts, the sliding seat has multiple threaded holes, the locking bolts are screwed into the threaded holes, the top-pressing bolts are screwed into the mounting base and their top ends abut against the back of the sliding seat, and the cross-section of the arc-shaped guide rail is an inverted trapezoidal structure with a larger top and a smaller bottom. This structural design uses an arc-shaped guide rail to limit the radial displacement of the sliding seat relative to the mounting base. Multiple locking bolts and the arc-shaped guide rail work together to vertically position the sliding seat relative to the mounting base. A top-pressure bolt then restricts the sliding seat's rotation around the arc-shaped guide rail and bears the reaction force experienced by the blade when cutting tobacco leaves, ensuring a stable installation. Furthermore, when adjusting the blade position, such as reducing the angle between the blade and the previous blade, simply loosen the locking bolts and then tighten the top-pressure bolts, moving the sliding seat forward. After adjustment, tighten the locking bolts again for convenient adjustment. When increasing the angle between the blade and the previous blade, loosen the locking bolts and then the top-pressure bolts, allowing the sliding seat to move backward so that its rear wall rests against the top-pressure bolts. Finally, tighten the locking bolts.

[0011] Furthermore, a mounting ring is rotatably mounted on the connecting shaft. The mounting plate is located between the blade assembly and the mounting ring. A blade arm is fixedly mounted on the mounting ring. One of the mounting seats is fixedly mounted on the mounting plate, and the remaining mounting plates are mounted on the blade arms. A fixing mechanism is installed between the mounting ring and the mounting plates. This structural design, through the rotatable connection between the mounting ring and the connecting shaft, and the fixing mechanism cooperating with the mounting ring to mount the remaining mounting seats on the mounting plates, allows for a wide range of adjustment of the included angle between the two blades simply by adjusting the position of the blade arms. This results in a broader adjustment range and greater practicality.

[0012] Further defining the fixing mechanism, it includes a fixing ring, a first chuck mounted on the side of the mounting plate near the mounting ring and the side of the mounting ring away from the mounting plate, and a second chuck mounted on the side of the mounting ring near the mounting plate. The end face of the first chuck away from the mounting plate has several radially arranged locking strips, and the end face of the second chuck near the mounting plate has several locking grooves. The locking strips are engaged in the locking grooves. The fixing ring is screwed onto the connecting shaft and rests against the mounting ring away from the mounting plate. This structural design, through the cooperation of the first chuck, the second chuck, and the fixing ring screwed onto the connecting shaft, allows for a wide range of adjustment of the angle between the two blades. Simply loosen the fixing ring, adjust the blade arm to allow the locking strips to engage in the new locking grooves, and then tighten the fixing ring again. This makes it more convenient to use. Furthermore, the number of blade arms can be increased or decreased according to actual needs, enabling simultaneous cutting of tobacco shreds of various widths, thus enhancing its practicality.

[0013] Furthermore, a counterweight is fixedly provided at the end of the mounting ring furthest from the cutter arm. This structural design, using the counterweight to balance the weight of the cutter arm, is highly practical.

[0014] Furthermore, the feeding speed of the feeding assembly is adjustable. This structural design, by adjusting the feeding speed of the feeding assembly, changes the width of the tobacco leaves cut by the cutting assembly per unit time, thereby changing the width of the tobacco shreds without changing the cutting assembly itself.

[0015] The invention employing the above technical solution has the following advantages:

[0016] 1. By using multiple blades that are not uniformly distributed in the direction of rotation to cut the tobacco leaves that are fed by the feeding mechanism at a constant speed in a cyclical manner, the time difference between the first set of blades cutting the tobacco leaves and the second set of blades cutting the tobacco leaves is different from the time difference between the second set of blades cutting the tobacco leaves and the third set of blades cutting the tobacco leaves. This results in the width of the tobacco shreds cut in two separate cuts being not completely equal. This process is repeated to achieve the goal of cutting tobacco shreds of different widths from the same batch of tobacco leaves and to complete the initial mixing.

[0017] 2. By adjusting the position of the blade, the width of the cut tobacco shreds can be adjusted.

[0018] 3. By sliding the sliding seat on the arc-shaped guide rail and cooperating with the locking mechanism, the position of the blade installed on the sliding seat can be adjusted, thereby achieving the purpose of adjusting the included angle α, making it more convenient to use and more practical.

[0019] 4. Through the cooperation of the first chuck, the second chuck, and the fixing ring screwed onto the connecting shaft, when a wide range of adjustment of the included angle between the two blades is required, simply loosen the fixing ring, adjust the blade arm so that the clips are inserted into the new slots, and finally tighten the fixing ring. This makes it more convenient to use. At the same time, the number of blade arms can be increased or decreased according to actual needs, thereby achieving simultaneous cutting of tobacco shreds of various widths, making it more practical. Attached Figure Description

[0020] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of a wide and narrow tobacco shred manufacturing device according to the present invention. Figure 1 ;

[0022] Figure 2 for Figure 1 Schematic diagram of the structure at point A;

[0023] Figure 3 This is a schematic diagram of the structure of an embodiment of a wide and narrow tobacco shred manufacturing device according to the present invention. Figure 2 ;

[0024] The symbols for the main components are explained below:

[0025] Cutting component 1, connecting shaft 11, mounting plate 12

[0026] Feeding assembly 2, knife gate assembly 3

[0027] Mounting base 4, blade 41, top pressure bolt 42

[0028] Arc-shaped guide rail 401, sliding seat 40, threaded hole 402

[0029] 5. Cutting arm, 50. Mounting ring, 51. First chuck, 510. Locking strip, 52. Fixing ring, 53. Counterweight. Detailed Implementation

[0030] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that similar or identical parts are referred to by the same reference numerals in the drawings or description. Implementations not shown or described in the drawings are forms known to those skilled in the art. In addition, directional terms mentioned in the embodiments, such as "up," "down," "top," "bottom," "left," "right," "front," and "back," are only for reference to the directions in the drawings and are not intended to limit the scope of protection of the present invention.

[0031] like Figures 1-3As shown, a wide and narrow tobacco shred manufacturing apparatus of the present invention includes a drive motor, a knife gate assembly 3, and a feeding assembly 2 for uniformly conveying tobacco leaves, all mounted on a frame. A cutting assembly 1 is fixedly mounted on the power output end of the drive motor. The feeding assembly 2, the knife gate assembly 3, and the cutting assembly 1 are arranged sequentially from top to bottom. The cutting assembly 1 includes a connecting shaft 11, on which a mounting plate 12 is fixedly mounted. Multiple mounting seats 4 are provided on the outer edge of the mounting plate 12. Blades 41 are mounted on the mounting seats 4. The cutting edges of the multiple blades 41 are on the same plane. The angle between the blade 41 and the previous blade 41 in the rotation direction of the cutting assembly 1 is α, and the multiple α values ​​are not completely equal.

[0032] The angle between the two blades 41 is adjustable. By adjusting the position of the blades 41, the width of the cut tobacco shreds can be adjusted.

[0033] An arc-shaped guide rail 401 is fixedly mounted on the mounting base 4. The center point of the arc of the arc-shaped guide rail 401 coincides with the central axis of the connecting shaft 11. A sliding seat 40 is slidably mounted on the mounting base 4 via the arc-shaped guide rail 401. The blade 41 is fixedly mounted on the sliding seat 40. A locking mechanism is installed between the mounting base 4 and the sliding seat 40. By sliding the sliding seat 40 on the arc-shaped guide rail 401, and in conjunction with the locking mechanism, the position of the blade 41 mounted on the sliding seat 40 can be adjusted, thereby achieving the purpose of adjusting the included angle α. This makes it more convenient to use and more practical.

[0034] The locking mechanism includes a top-pressing bolt 42 and multiple locking bolts. Multiple threaded holes 402 are provided on the sliding seat 40. The locking bolts are screwed into the threaded holes 402. The top-pressing bolt 42 is screwed onto the mounting seat 4 and its top end rests against the back of the sliding seat 40. The cross-section of the arc-shaped guide rail 401 is an inverted trapezoidal structure with a larger top and a smaller bottom. The radial displacement of the sliding seat 40 relative to the mounting base 4 is restricted by the arc-shaped guide rail 401. The vertical positioning of the sliding seat 40 relative to the mounting base 4 is achieved through the cooperation of multiple locking bolts and the arc-shaped guide rail 401. The top-pressure bolt 42 restricts the rotation of the sliding seat 40 around the arc-shaped guide rail 401 and bears the reaction force borne by the blade 41 when cutting tobacco leaves, ensuring a stable installation. At the same time, when it is necessary to adjust the position of the blade 41, such as reducing the included angle between the blade 41 and the previous blade 41, simply loosen the locking bolt and then tighten the top-pressure bolt 42 to move the sliding seat 40 forward. After adjustment, tighten the locking bolt again for easier adjustment. When it is necessary to increase the included angle between the blade 41 and the previous blade 41, loosen the locking bolt and then loosen the top-pressure bolt 42. Then, move the sliding seat 40 backward so that the rear wall of the sliding seat 40 rests against the top-pressure bolt 42. Finally, tighten the locking bolt.

[0035] A mounting ring 50 is rotatably mounted on the connecting shaft 11. A mounting plate 12 is located between the blade assembly 3 and the mounting ring 50. A blade arm 5 is fixedly mounted on the mounting ring 50. One mounting seat 4 is fixedly mounted on the mounting plate 12, and the remaining mounting plates 12 are mounted on the blade arms 5. A fixing mechanism is installed between the mounting ring 50 and the mounting plates 12. Through the rotatable connection between the mounting ring 50 and the connecting shaft 11, and by using the fixing mechanism in conjunction with the mounting ring 50 to mount the remaining mounting seats 4 onto the mounting plates 12, the angle between the two blades 41 can be adjusted over a wide range simply by adjusting the position of the blade arms 5. This provides a broader adjustment range and greater practicality.

[0036] The fixing mechanism includes a fixing ring 52, a first chuck 51 installed on the side of the mounting plate 12 near the mounting ring 50 and on the side of the mounting ring 50 away from the mounting plate 12, and a second chuck installed on the side of the mounting ring 50 near the mounting plate 12. The end face of the first chuck 51 away from the mounting plate 12 has a plurality of retaining strips 510 radially. The end face of the second chuck near the mounting plate 12 has a plurality of retaining grooves, and the retaining strips 510 are engaged in the retaining grooves. The fixing ring 52 is screwed onto the connecting shaft 11 and abuts against the mounting ring 50 away from the mounting plate 12. The cooperation of the first chuck 51, the second chuck, and the fixing ring 52 screwed onto the connecting shaft 11 makes it easier to adjust the angle between the two blades 41 over a wide range. Simply loosen the fixing ring 52, adjust the blade arm 5 so that the locking strip 510 is inserted into the new slot, and then tighten the fixing ring 52. This makes it more convenient to use. At the same time, the number of blade arms 5 can be increased or decreased according to actual needs, so as to achieve simultaneous cutting of tobacco shreds of various widths, making it more practical.

[0037] A counterweight 53 is fixedly installed at the end of the mounting ring 50 away from the cutter arm 5. The counterweight 53 balances the weight of the cutter arm 5, making it highly practical.

[0038] The feeding speed of the feeding component 2 is adjustable. By adjusting the feeding speed of the feeding component 2, the width of the tobacco leaves cut by the cutting component 1 per unit time is changed, thereby changing the width of the tobacco shreds without changing the cutting component 1.

[0039] In this embodiment, before use, the feeding speed of the feeding component 2, the actual number of blade arms 5, and the included angle α between each blade 41 are adjusted according to the different types of tobacco shreds and the specific width of the tobacco shreds required, and then fixed by the locking mechanism and the fixing structure.

[0040] In use, the tobacco leaves are fed by the feeding assembly 2 and enter the cutting assembly 1 area at a constant speed through the knife gate assembly 3. The cutting assembly 1, driven by the drive motor, cuts the tobacco leaves.

[0041] The foregoing has provided a detailed description of a wide and narrow tobacco shred manufacturing apparatus provided by the present invention. The specific embodiments described are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A wide and narrow tobacco shred manufacturing apparatus, comprising a drive motor mounted on a frame, a knife gate assembly (3), and a feeding assembly (2) for uniformly conveying tobacco leaves. The power output end of the drive motor is fixedly equipped with a cutting component (1). The feeding assembly (2), the blade assembly (3), and the cutting assembly (1) are arranged from top to bottom. Its features are: The cutting assembly (1) includes a connecting shaft (11), on which a mounting plate (12) is fixedly mounted, and the outer edge of the mounting plate (12) is provided with multiple mounting seats (4). The mounting base (4) is equipped with a blade (41). The cutting edges of the plurality of blades (41) are on the same plane. The angle between the blade (41) and the previous blade (41) in the rotation direction of the cutting assembly (1) is α, and the multiple α values ​​are not completely equal; The included angle between the two blades (41) is adjustable; An installation ring (50) is rotatably mounted on the connecting shaft (11). The installation plate (12) is located between the knife gate assembly (3) and the installation ring (50). A knife arm (5) is fixedly mounted on the installation ring (50). One of the installation seats (4) is fixedly mounted on the installation plate (12), and the other installation seats (4) are mounted on the knife arm (5). A fixing mechanism is installed between the installation ring (50) and the installation plate (12). The fixing mechanism includes a fixing ring (52), a first chuck (51) installed on the side of the mounting plate (12) near the mounting ring (50), a first chuck (51) installed on the side of the mounting ring (50) away from the mounting plate (12), and a second chuck installed on the side of the mounting ring (50) near the mounting plate (12). The end face of the first chuck (51) away from the mounting plate (12) has a plurality of locking strips (510) radially. The end face of the second chuck near the mounting plate (12) has a plurality of locking grooves. The locking strips (510) are locked in the locking grooves. The fixing ring (52) is screwed onto the connecting shaft (11) and abuts against the mounting ring (50) away from the mounting plate (12).

2. The wide and narrow tobacco shred manufacturing apparatus according to claim 1, characterized in that: An arc-shaped guide rail (401) is fixedly installed on the mounting base (4). The center point of the arc of the arc-shaped guide rail (401) coincides with the central axis of the connecting shaft (11). A sliding seat (40) is slidably installed on the mounting base (4) through the arc-shaped guide rail (401). The blade (41) is fixedly installed on the sliding seat (40). A locking mechanism is installed between the mounting base (4) and the sliding seat (40).

3. The wide and narrow tobacco shred manufacturing apparatus according to claim 2, characterized in that: The locking mechanism includes a top-pressing bolt (42) and multiple locking bolts. The sliding seat (40) has multiple threaded holes (402). The locking bolts are screwed into the threaded holes (402). The top-pressing bolt (42) is screwed onto the mounting seat (4) and its top end rests against the back of the sliding seat (40). The cross-section of the arc-shaped guide rail (401) is an inverted trapezoidal structure with a larger top and a smaller bottom.

4. The wide and narrow tobacco shred manufacturing apparatus according to claim 1, characterized in that: A counterweight (53) is fixedly provided at the end of the mounting ring (50) away from the blade arm (5).

5. The wide and narrow tobacco shred manufacturing apparatus according to claim 1, characterized in that: The feeding speed of the feeding assembly (2) is adjustable.