A cigarette rod straightening device for a cigarette making machine

Abstract

The utility model discloses a cigarette machine tobacco strand leveling device, including the base of U -shaped and the mounting bracket of H -shaped, the both ends of base, mounting bracket all are fixedly installed with the roller, and the both sides of base are welded with the symmetrical support plate a, and the support plate a fixedly installed with two vertical column, and the top between four columns is fixedly installed with the rectangular top plate, and the upper portion between four columns is provided with the lifting plate, and the bottom four corners of lifting plate are fixedly connected with the sliding sleeve pipe, and the sliding sleeve pipe is matched with the sliding connection of column, and the both sides of mounting bracket are welded with the support plate b, and the sliding sleeve pipe vertical penetrates support plate b and with its sliding connection, and the lower end outside of sliding sleeve pipe is welded with the ring washer, and the upper surface of ring washer and the bottom between support plate b are provided with the spring of sleeveing on sliding sleeve pipe. The tobacco strand is leveled with two upper and lower setting conveyors, and the contact area of conveyor and tobacco strand is big, can effectively reduce the damage to tobacco strand.

Description

Technical Field

[0001] This utility model relates to the field of tobacco machinery technology, specifically a tobacco bundle leveling device for cigarette machines. Background Technology

[0002] Most mainstream cigarette making machines use a suction forming technology to form cigarette strips. Under the action of a high-pressure fan, the negative pressure in the suction chamber draws in the tobacco shreds thrown into the suction channel by the shredding rollers or fluidized bed, which are then adsorbed below the suction belt. As the suction belt rotates, a continuous tobacco bundle is formed. In existing technology, the tobacco bundle after suction forming is directly trimmed by a leveling device. Using a leveling blade device to trim the tobacco bundle can create tight ends at both ends of the cigarette, increasing the amount of tobacco filling at the cigarette ends. However, due to the influence of the suction forming method and the stability of the tobacco supply system, the distribution of tobacco shreds in the lower part of the tobacco bundle is not completely in a straight line, but rather presents a wavy, uneven distribution.

[0003] To address the aforementioned issues, Chinese utility model patent CN219894643U discloses a tobacco bundle leveling device for a cigarette machine. This device includes a leveling wheel assembly, a support, a servo motor, and a synchronous transmission device. The leveling wheel assembly comprises several combing springs, configured to level the tobacco bundle using these springs. The leveling wheel assembly is mounted on the support and connected to both the servo motor and the synchronous transmission device. The servo motor drives the entire device to rotate along the tobacco bundle's running direction, causing the combing springs to comb the tobacco bundle, leveling any protruding tobacco strands and ensuring that the tobacco strands at each position on the bundle are essentially uniform before entering the leveling device for correction. However, this solution also has the following drawbacks: the combing springs have significant kinetic energy during rotation and are relatively thin at the front end, while tobacco strands are fragile and have low tensile and impact resistance. Using the combing springs to scrape the surface of the tobacco bundle can easily lead to breakage. Utility Model Content

[0004] The purpose of this utility model is to provide a tobacco bundle leveling device for cigarette machines to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cigarette machine tobacco bundle leveling device, comprising a U-shaped base and an H-shaped mounting frame. Rollers are fixedly installed at both ends of the base and the mounting frame. A conveyor belt is installed between two horizontally aligned rollers. Symmetrical support plates a are welded to both sides of the base. Two vertical columns are fixedly installed on the support plates a. A rectangular top plate is fixedly installed between the tops of the four columns. A lifting plate is provided between the upper parts of the four columns. The bottom four corners of the lifting plate are fixedly connected to... A sliding sleeve is fitted and slidably connected to the column. Support plates b are welded to both sides of the mounting frame. The sliding sleeve vertically passes through the support plates b and is slidably connected to them. An annular washer is welded to the outer side of the lower end of the sliding sleeve. A spring fitted on the sliding sleeve is provided between the upper surface of the washer and the bottom of the support plate b. A drive mechanism is installed on the top plate to push the lifting plate to move up and down to adjust the distance between the upper and lower conveyor belts. Gear motors are installed on the sides of the base and the mounting frame, and each gear motor drives a roller to rotate.

[0006] Preferably, the outer side of the roller is provided with an annular groove, and the conveyor belt is adapted to engage with it to achieve limiting constraint.

[0007] Preferably, the drive mechanism includes a servo motor, a ball screw, and a nut post. The servo motor is mounted vertically downward on the top of the top plate, the ball screw is mounted on the output end of the servo motor, and the lower end of the ball screw is screwed to the nut post.

[0008] Compared with the prior art, the beneficial effects of this utility model are: this utility model uses two conveyor belts arranged one above the other to level the tobacco bundle, and the contact area between the conveyor belt and the tobacco bundle is large, which can effectively reduce damage to the tobacco bundle. Attached Figure Description

[0009] Figure 1 This is a side view of the structure of this utility model;

[0010] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0011] Figure 3 This is a three-dimensional structural diagram of the mounting bracket.

[0012] In the diagram: 1. Base; 2. Mounting frame; 3. Roller; 4. Conveyor belt; 5. Support plate a; 6. Support plate b; 7. Gear motor; 8. Column; 9. Top plate; 10. Servo motor; 11. Lifting plate; 12. Sliding sleeve; 13. Spring; 14. Washer; 15. Ball screw; 16. Nut column. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0014] Please see Figure 1-3 This utility model provides a technical solution: a cigarette machine tobacco bundle leveling device, including a U-shaped base 1 and an H-shaped mounting frame 2. Rollers 3 are fixedly installed at both ends of the base 1 and the mounting frame 2. A conveyor belt 4 is installed between two horizontal rollers 3. The outer side of the rollers 3 is provided with an annular groove. The conveyor belt 4 is adapted to be snapped together to achieve limiting constraint. A reduction motor 7 is installed on the side of the base 1 and the mounting frame 2. The reduction motor 7 drives one roller 3 to rotate. The roller 3 drives the conveyor belt 4 to rotate. The two conveyor belts 4 rotate in the same direction on the side that is close to each other.

[0015] Symmetrical support plates a5 are welded to both sides of the base 1. Two vertical columns 8 are fixedly installed on the support plates a5. A rectangular top plate 9 is fixedly installed between the tops of the four columns 8. A lifting plate 11 is set between the upper parts of the four columns 8. Sliding sleeves 12 are fixedly connected to the four corners of the bottom of the lifting plate 11. The sliding sleeves 12 are adapted to the columns 8 and are slidably connected. Support plates b6 are welded to both sides of the mounting frame 2. The sliding sleeves 12 vertically penetrate the support plates b6 and are slidably connected to them. An annular washer 14 is welded to the outer side of the lower end of the sliding sleeve 12. A spring 13 is sleeved on the sliding sleeve 12 between the upper surface of the washer 14 and the bottom of the support plate b6. The spring 13 provides support for the support plate b6.

[0016] A drive mechanism is installed on the top plate 9 to push the lifting plate 11 up and down to adjust the gap between the upper and lower conveyor belts 4. The drive mechanism includes a servo motor 10, a ball screw 15, and a nut column 16. The servo motor 10 is installed vertically downward on the top of the top plate 9. The ball screw 15 is installed at the output end of the servo motor 10. The lower end of the ball screw 15 is screwed to the nut column 16. The rotation of the ball screw 15 can drive the lifting plate 11 to move vertically.

[0017] Working principle: The tobacco bundle passes between the upper and lower conveyor belts 4. The rotation of the servo motor 10 can drive the lifting plate 11 to move vertically. When the lifting plate 11 moves down, the upper conveyor belt 4 can move down and lightly press on the tobacco bundle. The conveyor belt 4 runs along the direction of tobacco absorption, which can flatten the tobacco bundle. Since the mounting frame 2 is supported by springs 13 on both sides, the mounting frame 2 has a certain elastic movement margin in the height direction to prevent the tobacco bundle from being compacted.

[0018] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tobacco bundle leveling device for a cigarette rolling machine, comprising a U-shaped base (1) and an H-shaped mounting bracket (2), characterized in that: Rollers (3) are fixedly installed at both ends of the base (1) and the mounting frame (2). A conveyor belt (4) is installed between the two horizontal rollers (3). Symmetrical support plates a (5) are welded to both sides of the base (1). Two vertical columns (8) are fixedly installed on the support plates a (5). A rectangular top plate (9) is fixedly installed between the tops of the four columns (8). A lifting plate (11) is provided between the upper parts of the four columns (8). Sliding sleeves (12) are fixedly connected to the four corners of the bottom of the lifting plate (11). The sliding sleeves (12) are adapted to slide and connect with the columns (8). The mounting frame (2) Support plates b (6) are welded on both sides. The sliding sleeve (12) passes vertically through the support plate b (6) and is slidably connected to it. An annular washer (14) is welded to the outer side of the lower end of the sliding sleeve (12). A spring (13) sleeved on the sliding sleeve (12) is provided between the upper surface of the washer (14) and the bottom of the support plate b (6). A drive mechanism is installed on the top plate (9) to push the lifting plate (11) to move up and down to adjust the distance between the upper and lower conveyor belts (4). A reduction motor (7) is installed on the side of the base (1) and the mounting frame (2). The reduction motor (7) drives a roller (3) to rotate.

2. The cigarette rolling machine tobacco bundle leveling device according to claim 1, characterized in that: The roller (3) has an annular groove on its outer side, and the conveyor belt (4) is adapted to engage with it to achieve limiting constraint.

3. The cigarette rolling machine tobacco bundle leveling device according to claim 1, characterized in that: The drive mechanism includes a servo motor (10), a ball screw (15), and a nut column (16). The servo motor (10) is mounted vertically downward on the top of the top plate (9). The ball screw (15) is mounted on the output end of the servo motor (10), and the lower end of the ball screw (15) is screwed to the nut column (16).

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