Cigarette tow opening device

Abstract

The utility model belongs to the technical field of cigarette production, and particularly relates to a cigarette tow opening device which comprises a bottom frame, supporting legs are fixedly installed at the four corners of the lower end of the bottom frame, a conveying belt is arranged in the bottom frame, a protection frame is fixedly installed at the upper end of the bottom frame through supporting blocks, and two opening rollers are rotatably installed in the protection frame. A U-shaped plate is arranged at the upper end of the protection frame, a plurality of guide wheels are rotatably mounted between the front inner side and the rear inner side of the U-shaped plate, and two opposite limiting blocks are movably arranged on each guide wheel. Meanwhile, the limiting blocks on a plurality of guide wheels can all move through connecting blocks, and the distance between the limiting blocks on the front side and the rear side is adjusted to a proper distance to limit the tows; the device is used for limiting the tows and preventing the tows from deviating in the conveying process to affect the opening effect.

Description

Technical Field

[0001] This utility model relates to a loosening device, specifically a cigarette tow loosening device. Background Technology

[0002] Because the smoke released when cigarettes burn contains tar and nicotine, which are harmful to human health, cigarette filters are required to filter out harmful components in the smoke. Cigarette filter tow refers to the special tow used to process cigarette filters. In addition, the filter is required to have appropriate draw resistance, hardness, rod weight, roundness, and meet hygiene standards.

[0003] During the production and processing of cigarette filter rods, it is necessary to loosen the filament bundles, that is, to loosen and unfold the tightly connected filament bundles that are fed in, in order to ensure the subsequent filter rod forming process. This process is a key step in filter rod forming, so a cigarette filament bundle loosening device is required.

[0004] Current cigarette tow opening devices typically convey the tow while simultaneously opening it with an opening roller. However, during the conveying process, it is impossible to limit the movement based on the overall width of the tow, which can easily lead to deviation during conveying. Consequently, the tow passes through the opening roller in a deviated state, resulting in poor opening efficiency. Utility Model Content

[0005] The main objective of this disclosure is to provide a cigarette tow opening device to effectively solve the problems raised by the inventors in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A cigarette tow opening device includes a base frame with support legs fixedly installed at the four corners of the lower end of the base frame. A conveyor belt is installed inside the base frame, and a protective frame is fixedly installed at the upper end via support blocks. Two opening rollers are rotatably installed inside the protective frame. A U-shaped plate is provided at the upper end of the protective frame. Several guide wheels are rotatably installed between the front and rear inner sides of the U-shaped plate. Two opposing limiting blocks are movably installed on each of the guide wheels. Adjacent limiting blocks are fixedly connected by connecting blocks. Two sliders are movably installed on the inner right side of the U-shaped plate. The two sliders are fixedly connected to the two adjacent limiting blocks. The cigarette tow is conveyed by rotating the guide wheels. By moving the two sliders, the two limiting blocks fixedly connected to them are also moved. At the same time, the limiting blocks on the guide wheels are moved by the connecting blocks, thereby adjusting the distance between the limiting blocks on the front and rear sides to a suitable distance according to the overall width of the cigarette tow. This can limit the cigarette tow and prevent deviation during the conveying process from affecting the opening efficiency.

[0008] Preferably, a plurality of transmission rollers are rotatably installed between the front and rear inner sides of the base frame, and the plurality of transmission rollers are connected by a conveyor belt. A transmission motor is fixedly installed on the front side of the base frame, and the output end of the transmission motor is fixedly connected to the rotating shaft of one of the transmission rollers. The transmission motor drives one of the transmission rollers to rotate, thereby driving the remaining transmission rollers to rotate through the conveyor belt. The rotation of the conveyor belt can transport the loosened filament bundle to the next processing step for use.

[0009] Preferably, the rear shafts of both opening rollers extend to the outside of the protective frame and are fixedly mounted with spur gears. The two spur gears mesh with each other. A rotary motor is fixedly mounted on the front side of the protective frame. The output end of the rotary motor is fixedly connected to one of the opening roller shafts. The front shaft of one of the opening rollers extends to the outside of the protective frame and is fixedly mounted with a transmission wheel. The front shaft of one of the guide wheels extends to the outside of the U-shaped plate and is also fixedly mounted with a transmission wheel. The two transmission wheels are fixedly connected by a transmission belt. When the rotary motor drives one of the opening rollers to rotate, it will drive the other opening roller to rotate through the two meshing spur gears, so that the two opening rollers can rotate simultaneously for use. At the same time, the transmission wheel on the opening roller will rotate, and the transmission belt will drive the other transmission wheel to rotate, thereby causing one of the guide wheels to rotate. This will drive the yarn bundle to move on several guide wheels and be conveyed towards the opening roller for use, realizing the use driven by a single motor.

[0010] Preferably, a bidirectional screw is rotatably installed inside the right end of the U-shaped plate, and a slide rod is fixedly installed thereon. An opening is opened on the inner side of the right end of the U-shaped plate, and two sliders are respectively threaded onto the threads on both sides of the bidirectional screw. Both sliders are slidably connected to the slide rod. By rotating the bidirectional screw, the two sliders are driven to slide towards each other on the slide rod, thereby driving the limiting blocks on the front and rear sides to move towards each other to adjust the spacing.

[0011] Preferably, a servo motor is fixedly installed on the front side of the U-shaped plate, and the output end of the servo motor is fixedly connected to the bidirectional screw shaft. The servo motor drives the bidirectional screw to rotate forward and backward.

[0012] Preferably, an L-shaped support plate is fixedly connected between the bottom frame and the U-shaped plate, and a placement plate is fixedly installed on the L-shaped support plate by multiple vertical rods. The placement plate facilitates the placement of the entire filament bundle for transport.

[0013] In view of this, compared with the prior art, the beneficial effects of this utility model are:

[0014] In this application, by setting limit blocks, when the filament bundle is conveyed, the servo motor drives the bidirectional screw to rotate, causing the two sliders to slide towards each other on the slide bar, thereby moving the two limit blocks fixedly connected to them towards each other. At the same time, the limit blocks on several guide wheels can be moved by the connecting block, and the distance between the limit blocks on the front and rear sides can be adjusted to a suitable distance according to the overall width of the filament bundle, thereby limiting the filament bundle to prevent deviation during the conveying process and affecting the opening effect. Attached Figure Description

[0015] Figure 1 The image shown is a front view of the cigarette tow unwinding device provided by this utility model;

[0016] Figure 2 The image shown is a front cross-sectional view of the cigarette tow opening device provided by this utility model;

[0017] Figure 3 The image shown is a top cross-sectional view of the cigarette tow loosening device provided by this utility model.

[0018] Icons: 1. Base frame; 2. Support leg; 3. Drive roller; 4. Conveyor belt; 5. Conveyor motor; 6. Support block; 7. Protective frame; 8. Opening roller; 9. Spur gear; 10. Rotary motor; 11. L-shaped support plate; 12. Vertical rod; 13. Placement plate; 14. U-shaped plate; 15. Guide wheel; 16. Drive wheel; 17. Drive belt; 18. Bidirectional screw; 19. Slide bar; 20. Slider; 21. Limit block; 22. Connecting block; 23. Servo motor. Detailed Implementation

[0019] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3 The present invention provides the following embodiments:

[0021] A cigarette tow opening device includes a base frame 1, with support legs 2 fixedly installed at the four corners of the lower end of the base frame 1. A conveyor belt 4 is installed inside the base frame 1, and a protective frame 7 is fixedly installed at the upper end via support blocks 6. Two opening rollers 8 are rotatably installed inside the protective frame 7. A U-shaped plate 14 is provided at the upper end of the protective frame 7. Several guide wheels 15 are rotatably installed between the front and rear inner sides of the U-shaped plate 14. Two opposing limiting blocks 21 are movably installed on each of the guide wheels 15. The left and right adjacent limiting blocks 21 are fixedly connected by connecting blocks 22. The right end of the U-shaped plate 14 is inner... Two sliders 20 are movable on the side, and the two sliders 20 are fixedly connected to two adjacent limiting blocks 21 respectively. The filament bundle is conveyed by rotating the guide wheel 15. However, by moving the two sliders 20, the two limiting blocks 21 fixedly connected to them are moved. At the same time, the limiting blocks 21 on several guide wheels 15 are moved by the connecting block 22, so that the distance between the limiting blocks 21 on the front and rear sides is adjusted to a suitable distance according to the overall width of the filament bundle. The filament bundle can be limited to prevent deviation during the conveying process and affect the opening efficiency.

[0022] Specifically, several transmission rollers 3 are rotatably installed between the front and rear inner sides of the base frame 1. The transmission rollers 3 are connected by a conveyor belt 4. A conveyor motor 5 is fixedly installed on the front side of the base frame 1. The output end of the conveyor motor 5 is fixedly connected to the rotating shaft of one of the transmission rollers 3. The transmission motor 5 drives one of the transmission rollers 3 to rotate, thereby driving the remaining transmission rollers 3 to rotate through the conveyor belt 4. The rotation of the conveyor belt 4 can transport the loosened filament bundle to the next processing step for use.

[0023] Specifically, the rear shafts of both opening rollers 8 extend to the outside of the protective frame 7 and are fixedly mounted with spur gears 9. The two spur gears 9 mesh with each other. A rotary motor 10 is fixedly mounted on the front side of the protective frame 7. The output end of the rotary motor 10 is fixedly connected to the shaft of one of the opening rollers 8. The front shaft of one of the opening rollers 8 extends to the outside of the protective frame 7 and is fixedly mounted with a transmission wheel 16. The front shaft of one of the guide wheels 15 extends to the outside of the U-shaped plate 14 and is also fixedly mounted with a transmission wheel 16. The two transmission wheels 16 are fixedly connected by a transmission belt 17. When the rotary motor 10 drives one of the opening rollers 8 to rotate, it will drive the other opening roller 8 to rotate through the two meshing spur gears 9, so that the two opening rollers 8 can rotate simultaneously for use. At the same time, the transmission wheel 16 on the opening roller 8 will rotate, and the transmission belt 17 will drive the other transmission wheel 16 to rotate, thereby causing one of the guide wheels 15 to rotate. This will drive the yarn bundle to move on several guide wheels 15 and be conveyed towards the opening roller 8 for use, realizing the use driven by a single motor.

[0024] Specifically, a bidirectional screw 18 is rotatably installed on the right end of the U-shaped plate 14, and a slide rod 19 is fixedly installed. An opening is made on the inner side of the right end of the U-shaped plate 14, and two sliders 20 are threadedly installed on the threads on both sides of the bidirectional screw 18. Both sliders 20 are slidably connected to the slide rod 19. By rotating the bidirectional screw 18, the two sliders 20 are driven to slide towards each other on the slide rod 19, thereby driving the limit blocks 21 on the front and rear sides to move towards each other to adjust the spacing.

[0025] Specifically, a servo motor 23 is fixedly installed on the front side of the U-shaped plate 14. The output end of the servo motor 23 is fixedly connected to the rotating shaft of the bidirectional screw 18. The servo motor 23 drives the bidirectional screw 18 to rotate forward and backward.

[0026] Specifically, an L-shaped support plate 11 is fixedly connected between the bottom frame 1 and the U-shaped plate 14. A placement plate 13 is fixedly installed on the L-shaped support plate 11 by multiple vertical rods 12. The placement plate 13 facilitates the placement of the entire filament bundle on the placement plate 13 for conveying and use.

[0027] The working principle of this utility model is as follows: First, place the entire filament bundle on the placement plate 13, then pull the filament bundle apart according to... Figure 2 The yarn bundle is wound around several guide wheels 15 and passes through two opening rollers 8. Then, according to the overall width of the yarn bundle, the bidirectional screw 18 is rotated by the servo motor 23, causing the two sliders 20 to slide towards each other on the slide bar 19. This drives the two limiting blocks 21 fixedly connected to them to move towards each other. At the same time, the connecting block 22 drives the remaining limiting blocks 21 to move, adjusting the distance between the limiting blocks 21 on the front and rear sides to a suitable position to limit the yarn bundle. Then, the rotary motor 10 is turned on to drive one of the opening rollers 8 to rotate, and the yarn bundle is then controlled by two meshing straight... Gear 9 drives another opening roller 8 to rotate. The two opening rollers 8 rotate simultaneously to open the filament bundle. At the same time, two drive wheels 16 cooperate with the drive belt 17 to drive one of the guide wheels 15 to rotate. This allows the filament bundle to be transported towards the opening roller 8 on several guide wheels 15. After the filament bundle is opened, it will fall onto the conveyor belt 4. The conveyor motor 5 drives one of the drive rollers 3 to rotate, which in turn drives the drive roller 3 to rotate. The rotation of the conveyor belt 4 transports the opened filament bundle to the next process for further processing.

[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A cigarette tow unwinding device, comprising a base frame (1), characterized in that: Support legs (2) are fixedly installed at the four corners of the bottom frame (1). A conveyor belt (4) is provided inside the bottom frame (1), and a protective frame (7) is fixedly installed at the top end through a support block (6). Two opening rollers (8) are rotatably installed inside the protective frame (7). A U-shaped plate (14) is provided at the top end of the protective frame (7). Several guide wheels (15) are rotatably installed between the front and rear inner sides of the U-shaped plate (14). Two opposing limit blocks (21) are movably provided on each of the several guide wheels (15). The left and right adjacent limit blocks (21) are fixedly connected by a connecting block (22). Two sliders (20) are movably provided on the inner side of the right end of the U-shaped plate (14). The two sliders (20) are fixedly connected to the two adjacent limit blocks (21) respectively.

2. The cigarette tow unwinding device according to claim 1, characterized in that: A number of transmission rollers (3) are rotatably installed between the front and rear inner sides of the bottom frame (1). The transmission rollers (3) are connected by a conveyor belt (4). A transmission motor (5) is fixedly installed on the front side of the bottom frame (1). The output end of the transmission motor (5) is fixedly connected to the shaft of one of the transmission rollers (3).

3. The cigarette tow unwinding device according to claim 1, characterized in that: The rear shafts of the two opening rollers (8) extend to the outside of the protective frame (7) and are fixedly mounted with spur gears (9). The two spur gears (9) mesh with each other. A rotary motor (10) is fixedly mounted on the front side of the protective frame (7). The output end of the rotary motor (10) is fixedly connected to the shaft of one of the opening rollers (8). The front shaft of one of the opening rollers (8) extends to the outside of the protective frame (7) and is fixedly mounted with a transmission wheel (16). The front shaft of one of the guide wheels (15) extends to the outside of the U-shaped plate (14) and is also fixedly mounted with a transmission wheel (16). The two transmission wheels (16) are fixedly connected by a transmission belt (17).

4. The cigarette tow unwinding device according to claim 1, characterized in that: The U-shaped plate (14) is rotatably mounted with a bidirectional screw (18) on the right end and a slide rod (19) is fixedly mounted thereon. An opening is opened on the inner side of the right end of the U-shaped plate (14). Two sliders (20) are respectively threaded onto the threads on both sides of the bidirectional screw (18), and both sliders (20) are slidably connected to the slide rod (19).

5. The cigarette tow unwinding device according to claim 4, characterized in that: A servo motor (23) is fixedly installed on the front side of the U-shaped plate (14), and the output end of the servo motor (23) is fixedly connected to the shaft of the bidirectional screw (18).

6. The cigarette tow unwinding device according to claim 1, characterized in that: An L-shaped support plate (11) is fixedly connected between the bottom frame (1) and the U-shaped plate (14), and a placement plate (13) is fixedly installed on the L-shaped support plate (11) by multiple vertical rods (12).

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