Cigarette paper-tobacco separation device for mouthless cigarettes

Abstract

The application provides a cigarette paper and tobacco shred separation device for a mouthless cigarette, which comprises a cigarette guide assembly, a compression wheel, a cutter assembly and a cigarette paper suction assembly. The cigarette guide assembly comprises a cigarette guide groove. The compression wheel is arranged at intervals with the cigarette guide groove, and the gap between the compression wheel and the cigarette guide groove is sized to allow the mouthless cigarette to pass in a compressed state. The cutter assembly is arranged opposite the compression wheel, and the cutting edge of the cutter assembly is at least partially located in the cigarette guide groove to cut the mouthless cigarette passing through the cigarette guide groove. The cigarette paper suction assembly is arranged above the cigarette guide assembly, and is arranged in front of the compression wheel along the movement direction of the mouthless cigarette in the cigarette guide groove. The cigarette paper suction assembly can provide negative pressure. The cigarette paper and tobacco shred separation device for a mouthless cigarette provided by the application avoids the problem of high tobacco shred crushing rate, and improves the purity and recovery rate of tobacco shreds.

Description

Technical Field

[0001] This application relates to the field of tobacco waste cigarette recycling technology, specifically to a cigarette paper and tobacco shred separation device for filterless cigarettes. Background Technology

[0002] A cigarette rolling machine is a device that wraps tobacco shreds in cigarette paper, cuts them into cigarette sticks without filters, and then twists them together. When waste cigarette sticks are generated due to rolling problems, the waste cigarette sticks need to be separated from the cigarette paper before the tobacco shreds can be recycled.

[0003] Currently, the recycling method for waste cigarettes involves breaking the cigarettes down with agitators and then using a vibrating screen to separate the tobacco from the cigarette paper. This method results in a large amount of tobacco being broken up. In addition, the tobacco is mixed with a lot of cigarette paper scraps, making the tobacco impure. Conversely, the cigarette paper is also mixed with a lot of tobacco, leading to a significant waste of tobacco. Summary of the Invention

[0004] To at least partially solve the above problems, embodiments of this application provide a cigarette paper and tobacco separation device for a filterless cigarette. The device includes a cigarette guide assembly, a pressure roller, a cutter assembly, and a cigarette paper suction assembly. The cigarette guide assembly includes a cigarette guide groove, configured to allow the filterless cigarette to move axially within it. The pressure roller is spaced apart from the cigarette guide groove, and the gap between them is large enough to allow the filterless cigarette to pass through while being pressed by the pressure roller. The pressing wheel can rotate under the action of driving force to drive the filterless cigarette through the gap between the pressing wheel and the cigarette guide groove; the cutting assembly is arranged opposite to the pressing wheel, and the blade of the cutting assembly is at least partially located in the cigarette guide groove to cut the filterless cigarette that has passed through the cigarette guide groove; the cigarette paper suction assembly is arranged above the cigarette guide assembly, and the cigarette paper suction assembly is arranged in front of the pressing wheel along the movement direction of the filterless cigarette in the cigarette guide groove. The cigarette paper suction assembly can provide negative pressure to suck up the cigarette paper after the filterless cigarette has been cut.

[0005] In some embodiments, the cigarette guide assembly further includes a cigarette paper guide that extends from the cigarette guide groove to below the cigarette paper suction assembly, with one end of the cigarette guide groove located below the radial highest point when the filterless cigarette is in the cigarette guide groove.

[0006] In some embodiments, the cigarette paper suction assembly includes a mounting base and a cover. The mounting base is cylindrical and has a negative pressure chamber circumferentially arranged therein, which is connected to a negative pressure air source to provide negative pressure. The cover is cylindrical and corresponds to the size of the mounting base. The cover is rotatably fitted onto the mounting base. The side of the cover has a plurality of through holes circumferentially arranged therein, wherein when the cover rotates, the through holes corresponding to the circumferential positions of the negative pressure chamber are connected to the negative pressure chamber.

[0007] In some embodiments, a positive pressure chamber is also provided circumferentially on the mounting base. The positive pressure chamber and the negative pressure chamber are located at different circumferential positions on the mounting base. The positive pressure chamber is connected to a positive pressure air source to provide positive pressure. When the cover rotates, the through hole corresponding to the circumferential position of the positive pressure chamber is connected to the positive pressure chamber. The cigarette paper and tobacco shred separation device also includes a cigarette paper collecting section, the inlet of which corresponds to the position of the positive pressure chamber.

[0008] In some embodiments, the cigarette paper and tobacco separation device further includes a cigarette conveying assembly, which includes a cigarette inlet groove and an air blowing assembly. One end of the cigarette inlet groove is connected to a cigarette guide groove. The cigarette inlet groove is used to accommodate cigarettes without a mouthpiece to be processed. The air blowing assembly is located at the end of the cigarette inlet groove away from the cigarette guide groove. The air blowing assembly is in communication with a positive pressure air source. The air blowing assembly is configured to blow air onto the cigarette without a mouthpiece when it detects that the cigarette inlet groove contains such a cigarette, so as to blow the cigarette without a mouthpiece toward the gap between the pressing roller and the cigarette guide groove.

[0009] In some embodiments, the cigarette delivery assembly further includes a cigarette-picking wheel, which is rotatably mounted on the cigarette inlet groove. The cigarette-picking wheel is provided with a plurality of cigarette-picking needles along its circumference. The rotation axis of the cigarette-picking wheel is parallel to the extension direction of the cigarette inlet groove. The cigarette-picking wheel is used to pick up cigarettes without mouthpieces from the negative pressure drum and place them into the cigarette inlet groove. The negative pressure drum can adsorb cigarettes into the cigarette slot by negative pressure. The cigarette-picking wheel and the negative pressure drum rotate synchronously in opposite directions through a synchronizing mechanism and their rotation axes are parallel. The distance between the cigarette-picking wheel and the negative pressure drum, as well as the distance between the cigarette-picking wheel and the side wall of the cigarette inlet groove, are both less than the length of the cigarette-picking needles. The cigarette inlet groove and the negative pressure drum are provided with clearance grooves corresponding to the positions of the cigarette-picking needles.

[0010] In some embodiments, the blowing assembly includes a mounting frame, an air valve, and a nozzle. The mounting frame is rotatably connected to the cigarette delivery assembly via a wing screw. The air valve is mounted on the mounting frame and is connected to a positive pressure air source. The nozzle is mounted on the mounting frame and connected to the air valve, with the nozzle's air outlet direction facing the cigarette inlet groove. A pressure plate is also provided at one end of the cigarette guide groove that connects to the cigarette inlet groove, forming a channel for the cigarette to pass through between the pressure plate and the cigarette guide groove.

[0011] In some embodiments, the cutter assembly includes a circular blade, with a gap formed at the bottom of the cigarette guide groove, through which the cutting edge of the circular blade enters the cigarette guide groove.

[0012] In some embodiments, the cigarette paper and tobacco separation device further includes a mounting frame and a drive assembly. The cigarette guide assembly, the pressing wheel, the cutting assembly, and the cigarette paper suction assembly are mounted on the mounting frame. The drive assembly is mounted on the mounting frame and includes a drive motor, a first drive wheel, a second drive wheel, and a third drive wheel connected by a synchronous belt drive. The pressing wheel is connected to the first drive wheel via a first drive shaft, the circular blade is connected to the second drive wheel via a second drive shaft, and the cover is connected to the third drive wheel via a third drive shaft. A through hole is provided at the center of the mounting base for the third drive shaft to pass through.

[0013] In some embodiments, the cigarette guide assembly further includes a tobacco guide plate disposed on the mounting bracket and located at one end of the cigarette guide groove adjacent to the cigarette paper suction assembly, the tobacco guide plate being used to guide the tobacco to the tobacco collector; the cutter assembly further includes a protective cover covering the portion of the circular blade located outside the cigarette guide groove.

[0014] The cigarette paper and tobacco separation device for mouthpiece-less cigarettes provided in the embodiments of this application separates the cigarette paper and tobacco by cutting the cigarette paper of the cigarette with a cutting assembly and then sucking up the cigarette paper with a cigarette paper suction assembly. This facilitates the subsequent tobacco recycling process, avoids the problem of high tobacco breakage rate caused by breaking the cigarette, and improves the purity and recycling rate of the tobacco. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the mechanism of the cigarette paper tobacco separation device provided in the embodiments of this application;

[0017] Figure 2 This is an exploded view of the cigarette paper and tobacco shred separation device provided in the embodiments of this application;

[0018] Figure 3 This is a schematic diagram of the structure of the driving component provided in an embodiment of this application;

[0019] Figure 4 This is an exploded view of the cigarette delivery assembly provided in an embodiment of this application;

[0020] Figure 5 This is an exploded view of the cutter assembly provided in an embodiment of this application;

[0021] Figure 6This is an exploded view of the cigarette paper suction assembly provided in an embodiment of this application;

[0022] Figure 7 This is a schematic diagram of the structure of the mounting base provided in an embodiment of this application;

[0023] Figure 8 This is an exploded view of the cigarette guide assembly provided in an embodiment of this application.

[0024] The attached figures are labeled as follows:

[0025] 1. Drive assembly; 1-1. Drive motor; 1-2. Synchronous belt; 2. Mounting bracket; 3. Negative pressure drum; 4. Synchronization mechanism; 5. Cigarette conveying assembly; 5-1. Cigarette take-up wheel; 5-2. Pulley; 5-3. Connecting block; 5-4. Fourth drive shaft; 5-5. Air valve; 5-6. Wing screw; 5-7. Nozzle; 5-8. Fixing bracket; 5-9. Smoke inlet trough; 6. Cutter assembly; 6-1. Second drive wheel; 6-2. Protective cover; 6-3. Second drive shaft; 6 -4. Circular blade; 6-5. Fixing plate; 7. Pressure wheel; 7-1. First transmission wheel; 8. Cigarette paper suction assembly; 8-1. Third transmission wheel; 8-2. Third transmission shaft; 8-3. Mounting base; 8-3-1. Positive pressure chamber; 8-3-2. Negative pressure chamber; 8-4. Sealing gasket; 8-5. Cover; 9. Cigarette guide assembly; 9-1. Cigarette guide groove; 9-2. Pressure plate; 9-3. Cigarette paper guide; 9-4. Tobacco guide plate; 10. Cigarette paper collection section.

[0026] It should be understood that the dimensions of the various parts shown in the accompanying drawings are not drawn to actual scale. Furthermore, the same or similar reference numerals denote the same or similar components. Detailed Implementation

[0027] The preferred embodiments of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection claimed in this application.

[0028] The terms "first," "second," and similar words used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "above," "below," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, this relative positional relationship may also change accordingly.

[0029] like Figure 1 and Figure 2 As shown, an embodiment of this application provides a cigarette paper and tobacco separation device for a filterless cigarette. The cigarette paper and tobacco separation device includes a cigarette guide assembly 9, a pressing roller 7, a cutting assembly 6, and a cigarette paper suction assembly 8. The cigarette guide assembly 9 includes a cigarette guide groove 9-1, which is configured to allow the filterless cigarette to move along its axial direction within the cigarette guide groove 9-1. Specifically, when the filterless cigarette is located in the cigarette guide groove 9-1, the axial extension direction of the filterless cigarette can... With the extension direction of the cigarette guide groove 9-1 in the same direction, the filterless cigarette can move along its own axis in the cigarette guide groove 9-1; the pressure roller 7 is spaced apart from the cigarette guide groove 9-1, and the gap between the pressure roller 7 and the cigarette guide groove 9-1 is large enough to allow the filterless cigarette to pass through while being pressed by the pressure roller 7. The pressure roller 7 can rotate under the action of driving force to drive the filterless cigarette through the gap between the pressure roller 7 and the cigarette guide groove 9-1. A groove can be formed on the pressure roller 7 that is in contact with the filterless cigarette. The grooves are adapted to the radial dimensions of the cigarette holder to more stably compress the cigarette without a filter. The cutter assembly 6 is positioned opposite the pressure roller 7, with at least a portion of its blade located in the cigarette guide groove 9-1 to slice the cigarette without a filter passing through it. For example, the blade of the cutter assembly 6 can extend in the cigarette guide groove 9-1 to a length close to the thickness of the cigarette paper (e.g., 1 mm). Under the pressure of the pressure roller 7, the cigarette paper can pass through the cigarette guide groove 9-1... The cigarette paper is cut close to the ground; the cigarette paper suction assembly 8 is located above the cigarette guide assembly 9, and the cigarette paper suction assembly 8 is located in front of the pressure roller 7 along the movement direction of the cigarette without a mouthpiece in the cigarette guide groove 9-1, so that the cigarette without a mouthpiece first passes through the gap between the pressure roller 7 and the cigarette guide groove 9-1, is cut by the cutter assembly 6 which is arranged opposite to the pressure roller 7, and then reaches the cigarette paper suction assembly 8. The cigarette paper suction assembly 8 can provide negative pressure to suck up the cigarette paper after the cigarette without a mouthpiece has been cut.

[0030] The cigarette paper and tobacco shred separation device for mouthpiece-less cigarettes provided in the embodiments of this application separates the cigarette paper and tobacco shreds by cutting the cigarette paper of the cigarette with the cutting component 6 and then picking up the cigarette paper with the cigarette paper suction component 8. This facilitates the subsequent tobacco shred recycling process, avoids the problem of high tobacco shred breakage rate caused by breaking the cigarette, and improves the purity and recycling rate of the tobacco shreds.

[0031] like Figure 8As shown, in some embodiments, the cigarette guide assembly 9 further includes a cigarette paper guide 9-3, which extends from the cigarette guide groove 9-1 to below the cigarette paper suction assembly 8. One end of the cigarette paper guide 9-3 located in the cigarette guide groove 9-1 is lower than the highest radial point of the cigarette without a filter when it is located in the cigarette guide groove 9-1. In this embodiment, after the cigarette without a filter is cut, the cigarette paper can rest on the end of the cigarette paper guide 9-3 located in the cigarette guide groove 9-1 and continue to move along the cigarette paper guide 9-3, thereby approaching the cigarette paper suction assembly 8 and being more easily sucked up by it. Exemplarily, the end of the cigarette paper guide 9-3 near the cigarette paper suction assembly 8 can be connected to the bracket of the pressure roller 7.

[0032] like Figure 6 As shown, in some embodiments, the cigarette paper suction assembly 8 includes a mounting base 8-3 and a cover 8-5. The mounting base 8-3 is cylindrical, and a negative pressure chamber 8-3-2 is formed circumferentially on the mounting base 8-3. The negative pressure chamber 8-3-2 is connected to a negative pressure air source to provide negative pressure. The cover 8-5 is cylindrical, corresponding to the size of the mounting base 8-3, and is rotatably fitted onto the mounting base 8-3. Multiple through holes are formed circumferentially on the side of the cover 8-5. When the cover 8-5 rotates, the through holes corresponding to the circumferential positions of the negative pressure chambers 8-3-2 communicate with the negative pressure chambers 8-3-2. In this embodiment, this arrangement ensures that the circumferential positions of the cover 8-5 and the mounting base 8-3 corresponding to the negative pressure chambers 8-3-2 maintain negative pressure to suction the cigarette paper. The negative pressure chamber 8-3-2 can face the direction of the cigarette paper guide 9-3 and extend a predetermined distance circumferentially along the mounting base 8-3, so that the cover 8-5 can maintain a negative pressure state to transport the cigarette paper to the predetermined position. Preferably, a sealing gasket 8-4 can also be provided between the mounting base 8-3 and the cover 8-5. The sealing gasket 8-4 can be installed on the mounting base 8-3 with screws to ensure sealing.

[0033] like Figure 7As shown, in some embodiments, a positive pressure chamber 8-3-1 is also provided circumferentially on the mounting base 8-3. The positive pressure chamber 8-3-1 and the negative pressure chamber 8-3-2 are located at different positions circumferentially on the mounting base 8-3. The positive pressure chamber 8-3-1 is connected to a positive pressure air source to provide positive pressure. When the cover 8-5 rotates, the through hole corresponding to the circumferential position of the positive pressure chamber 8-3-1 is connected to the positive pressure chamber 8-3-1. The cigarette paper and tobacco shred separation device also includes a cigarette paper collection section 10, the inlet of which corresponds to the position of the positive pressure chamber 8-3-1. In this embodiment, this arrangement allows the cigarette paper to be drawn into the circumferential position corresponding to the negative pressure chamber 8-3-2 by the cover 8-5, and to move along the circumference of the cover 8-5 for the distance the negative pressure chamber 8-3-2 extends. When the cigarette paper reaches the position of the positive pressure chamber 8-3-1, it is affected by the positive pressure gas in the positive pressure chamber 8-3-1, separates from the cover 8-5, and enters the cigarette paper collection part 10.

[0034] like Figure 4 As shown, in some embodiments, the cigarette paper and tobacco separation device further includes a cigarette conveying assembly 5. The cigarette conveying assembly 5 includes a cigarette inlet trough 5-9 and an air blowing assembly. One end of the cigarette inlet trough 5-9 is connected to a cigarette guide groove 9-1. The cigarette inlet trough 5-9 is used to accommodate cigarettes without a filter tip to be processed. The air blowing assembly is located at the end of the cigarette inlet trough 5-9 away from the cigarette guide groove 9-1 and is connected to a positive pressure air source. The air blowing assembly is configured to blow air onto the cigarette without a filter tip when it detects that the cigarette without a filter tip is contained in the cigarette inlet trough 5-9, so as to blow the cigarette without a filter tip towards the gap between the pressing roller 7 and the cigarette guide groove 9-1. In this embodiment, after placing the cigarette without a filter tip in the cigarette inlet trough 5-9, the cigarette without a filter tip is conveyed by the air blowing assembly, which is simple and convenient. By setting a sensor, the cigarette without a filter tip in the cigarette inlet trough 5-9 can be detected, thereby realizing automatic control of the air blowing assembly. In this embodiment, cigarettes without mouthpieces can be added manually to the smoke inlet 5-9, or they can be added automatically to the smoke inlet 5-9 by other devices.

[0035] In some embodiments, the cigarette delivery assembly 5 further includes a cigarette-picking wheel 5-1, which is rotatably mounted on the cigarette inlet groove 5-9. The cigarette-picking wheel 5-1 is provided with a plurality of cigarette-picking needles along its circumference. The rotation axis of the cigarette-picking wheel 5-1 is parallel to the extension direction of the cigarette inlet groove 5-9. The cigarette-picking wheel 5-1 is used to pick up the cigarettes without mouthpieces from the negative pressure drum 3 and place them into the cigarette inlet groove 5-9. The negative pressure drum 3 can adsorb the cigarettes into the cigarette slot by negative pressure. The cigarette-picking wheel 5-1 and the negative pressure drum 3 rotate synchronously in opposite directions through a synchronization mechanism 4 and their rotation axes are parallel. The distance between the cigarette-picking wheel 5-1 and the negative pressure drum 3, as well as the distance between the cigarette-picking wheel 5-1 and the side wall of the cigarette inlet groove 5-9, are both less than the length of the cigarette-picking needles. The cigarette inlet groove 5-9 and the negative pressure drum 3 are provided with clearance grooves corresponding to the positions of the cigarette-picking needles. In this embodiment, the negative pressure drum 3, combined with a shearing block, can shear the cigarette filter to obtain a filterless cigarette. The filterless cigarette is adsorbed onto the negative pressure drum 3 and moves with it. When it reaches the position of the cigarette-retrieving wheel 5-1, it is picked up by the cigarette-retrieving needle on the cigarette-retrieving wheel 5-1, thus removing the filterless cigarette from the negative pressure drum 3. The cigarette-retrieving wheel 5-1 continues to rotate, carrying the filterless cigarette to the cigarette inlet groove 5-9, where it contacts the groove wall. The filterless cigarette then detaches from the cigarette-retrieving needle and remains in the cigarette inlet groove 5-9, while the cigarette-retrieving needle passes through the clearance groove on the cigarette inlet groove 5-9 and leaves the cigarette inlet groove 5-9, thus completing the rotation cycle. Multiple cigarette-retrieving needles can be arranged in a row along the circumference of the cigarette-retrieving wheel 5-1, and simultaneously, they can be arranged in multiple rows along the axial direction of the cigarette-retrieving wheel 5-1 to more stably pick up the filterless cigarette. The wall of the smoke inlet groove 5-9 can be inclined, with the inclination direction opposite to the rotation direction of the smoke inlet wheel, so that the opening direction of the smoke inlet groove 5-9 aligns with the smoke inlet wheel, achieving better interception of cigarettes without nozzles. The smoke take-up wheel 5-1 can be connected to the pulley 5-2 of the synchronization mechanism 4 via the fourth drive shaft 5-4. The pulley 5-2 is connected to the rotating shaft of the negative pressure drum 3. A connecting block 5-3 can be provided on the smoke inlet groove 5-9. The connecting block 5-3 is fixed to the smoke inlet groove 5-9 by screws. The fourth drive shaft 5-4 passes through the through hole on the connecting block 5-3, and its two ends are connected to the smoke take-up wheel 5-1 and the pulley 5-2 respectively. The connecting block 5-3 can support the pulley 5-2 and the smoke take-up wheel 5-1.

[0036] In some embodiments, the air blowing assembly includes a mounting bracket 5-8, an air valve 5-5, and a nozzle 5-7. The mounting bracket 5-8 is rotatably connected to the cigarette delivery assembly 5 via a wing screw 5-6. The air valve 5-5 is mounted on the mounting bracket 5-8 and is connected to a positive pressure air source. The nozzle 5-7 is mounted on the mounting bracket 5-8 and connected to the air valve 5-5, with the air outlet direction of the nozzle 5-7 facing the smoke inlet trough 5-9. Figure 8A pressure plate 9-2 is also provided at one end of the cigarette guide groove 9-1 that connects to the smoke inlet groove 5-9. The pressure plate 9-2 and the cigarette guide groove 9-1 form a channel for the cigarette to pass through. In this embodiment, a round hole can be opened on the fixing frame 5-8. The gas valve 5-5 and the nozzle 5-7 are fixed in the round hole of the fixing frame 5-8. By loosening the wing screw 5-6, the fixing frame 5-8 can be rotated, thereby adjusting the position of the nozzle 5-7. When it is necessary to manually add a mouthless cigarette, the nozzle 5-7 can be temporarily moved away from the end opening of the smoke inlet groove 5-9 to allow the mouthless cigarette to enter the smoke inlet groove 5-9. In addition, by setting the pressure plate 9-2, the movement of the mouthless cigarette can be restricted to prevent the mouthless cigarette from being blown away.

[0037] like Figure 5 and Figure 8 As shown, in some embodiments, the cutting assembly 6 includes a circular blade 6-4, and a gap is formed at the bottom of the cigarette guide groove 9-1. The cutting edge of the circular blade 6-4 enters the cigarette guide groove 9-1 through the gap at the bottom of the cigarette guide groove 9-1. In this embodiment, the cigarette guide groove 9-1 can be composed of two strip blocks, which are fixed together at intervals to form a gap at the bottom. The size of the gap can be 1.5 mm. The circular blade 6-4 cuts into the cigarette guide groove 9-1 from the gap at the bottom to achieve the slicing of the cigarette without a mouthpiece.

[0038] In some embodiments, the cigarette paper and tobacco separating device further includes a mounting frame 2 and a drive assembly 1. A cigarette guide assembly 9, a pressing wheel 7, a cutting blade assembly 6, and a cigarette paper suction assembly 8 are mounted on the mounting frame 2. Specifically, one strip-shaped block of the cigarette guide groove 9-1 can be mounted on the mounting frame 2 by screws, and another strip-shaped block is connected to the same strip-shaped block by screws. The mounting seat 8-3 in the cigarette paper suction assembly 8 can be fixedly connected to the mounting frame 2 and does not rotate. The drive assembly 1 is mounted on the mounting frame 2 and includes a drive motor 1-1, a first transmission wheel 7-1, a second transmission wheel 6-1, and a third transmission wheel 8-1, all connected by a synchronous belt 1-2. The pressing wheel 7 is connected to the first transmission wheel 7-1 via a first transmission shaft, the circular blade 6-4 is connected to the second transmission wheel 6-1 via a second transmission shaft 6-3, and the cover 8-5 is connected to the third transmission wheel 8-1 via a third transmission shaft 8-2. A through hole is provided at the center of the mounting seat 8-3 for the third transmission shaft 8-2 to pass through. The circular blade 6-4 can be clamped by the fixing plates 6-5 on both sides, thereby achieving fixation on the second drive shaft 6-3.

[0039] In some embodiments, the cigarette guide assembly 9 further includes a tobacco guide plate 9-4, which is disposed on the mounting bracket 2 and located at one end of the cigarette guide groove 9-1 adjacent to the cigarette paper suction assembly 8. The tobacco guide plate 9-4 is used to guide the tobacco to the tobacco collector. The cutter assembly 6 further includes a protective cover 6-2, which covers the portion of the circular blade 6-4 located outside the cigarette guide groove 9-1 to prevent cutting injuries caused by accidental contact.

[0040] The working principle of the cigarette paper and tobacco separation device provided in the embodiments of this application is as follows: The cigarette without a mouthpiece is adsorbed in the cigarette slot of the negative pressure drum 3. As the negative pressure drum 3 rotates, it is transported to the cigarette picking wheel 5-1 of the cigarette conveying assembly 5, and is pierced by the cigarette picking needle on the cigarette picking wheel 5-1 and detached from the negative pressure drum 3. It moves with the cigarette picking wheel 5-1 to the cigarette inlet slot 5-9. After the cigarette is in place, the air valve 5-5 opens the air valve, and the positive pressure of the nozzle 5-7 blows the cigarette without a mouthpiece toward the cigarette guide assembly 9. The cigarette is held in place by a baffle above the cigarette guide groove 9-1 to prevent it from being blown away. As the cigarette moves below the pressing wheel 7, it is held steady. A circular blade 6-4 extending from below the cigarette guide groove 9-1 cuts the cigarette paper. The cut cigarette continues to move towards the cigarette paper guide 9-3. The cigarette paper separates upwards with the cigarette paper guide 9-3 and is then adsorbed by the negative pressure of the cigarette paper suction assembly 8. As the cigarette paper suction assembly 8 rotates to the cigarette paper collection section 10, it is blown out by positive pressure. The tobacco shreds detached from the cigarette paper continue to move forward with the cigarette guide groove 9-1 until they are blocked by the tobacco guide plate 9-4 and fall into the tobacco collector.

[0041] When cigarette cutting is required, the wing screw 5-6 can be turned to rotate the fixing bracket 5-8 180°, allowing the cigarette stick to enter directly from the inlet of the cigarette inlet 5-9. After manually inserting the cigarette into the pressure roller 7, the cigarette will be driven, and no further manual feeding is needed. The circular blade 6-4 extending from below the cigarette guide groove 9-1 cuts the cigarette paper of the cigarette without a mouthpiece. The cut cigarette continues to move towards the cigarette paper guide 9-3. After the cigarette paper separates upward with the cigarette paper guide 9-3, it is absorbed by the negative pressure of the cigarette paper suction component 8. After rotating with the cigarette paper suction component 8 to the cigarette paper collection part 10, it is blown out by positive pressure. The tobacco shreds that have detached from the cigarette paper continue to move forward with the cigarette guide groove 9-1 until they are blocked by the tobacco shred guide plate 9-4 and fall into the tobacco shred collector.

[0042] Based on the various embodiments of this application described above, in the absence of explicit denial or conflict, the technical features of one embodiment may be advantageously combined with one or more other embodiments.

[0043] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this application. The scope of this application is defined by the appended claims.

Claims

1. A cigarette paper and tobacco separation device for filterless cigarettes, characterized in that, include: A cigarette guide assembly, the cigarette guide assembly including a cigarette guide groove, the cigarette guide groove being configured to allow a mouthpieceless cigarette to move along its axial direction within the cigarette guide groove; A pressure roller is provided, which is spaced apart from the cigarette guide groove. The gap between the pressure roller and the cigarette guide groove is large enough to allow the cigarette without a mouthpiece to pass through while being pressed by the pressure roller. The pressure roller can rotate under the action of driving force to drive the cigarette without a mouthpiece through the gap between the pressure roller and the cigarette guide groove. A cutting assembly is disposed opposite to the pressure wheel, and the blade of the cutting assembly is at least partially located in the cigarette guide groove to cut the cigarette without a mouthpiece that has passed through the cigarette guide groove. A cigarette paper suction assembly is disposed above the cigarette guide assembly and is positioned in front of the pressing roller along the movement direction of the filterless cigarette in the cigarette guide groove. The cigarette paper suction assembly can provide negative pressure to suck up the cigarette paper after the filterless cigarette has been cut. A cigarette delivery assembly includes a cigarette inlet trough, an air blowing assembly, and a cigarette-collecting wheel. The cigarette-collecting wheel is rotatably mounted on the cigarette inlet trough and has multiple cigarette-collecting needles arranged circumferentially. The rotation axis of the cigarette-collecting wheel is parallel to the extension direction of the cigarette inlet trough. The cigarette-collecting wheel is used to collect cigarettes without mouthpieces from a negative pressure drum into the cigarette inlet trough. The negative pressure drum can adsorb cigarettes into the cigarette trough by negative pressure. The cigarette-collecting wheel and the negative pressure drum rotate synchronously in opposite directions through a synchronizing mechanism, and their rotation axes are parallel. The distance between the cigarette-collecting wheel and the negative pressure drum, as well as the distance between the cigarette-collecting wheel and the side wall of the cigarette inlet trough, are both less than the length of the cigarette-collecting needles. The cigarette inlet trough and the negative pressure drum are provided with clearance grooves corresponding to the positions of the cigarette-collecting needles. The cigarette paper suction assembly includes: The mounting base is cylindrical and has a negative pressure air chamber circumferentially arranged therein. The negative pressure air chamber is connected to a negative pressure air source to provide negative pressure. The cover is cylindrical and corresponds to the size of the mounting base. The cover is rotatably fitted onto the mounting base. The side of the cover has multiple through holes along the circumferential direction. When the cover rotates, the through holes corresponding to the circumferential positions of the negative pressure chamber communicate with the negative pressure chamber. The mounting base is also provided with a positive pressure air chamber in the circumference. The positive pressure air chamber and the negative pressure air chamber are located at different positions in the circumference of the mounting base. The positive pressure air chamber is connected to a positive pressure air source to provide positive pressure. When the cover rotates, the through hole corresponding to the circumferential position of the positive pressure air chamber is connected to the positive pressure air chamber. The cigarette paper and tobacco shred separation device also includes a cigarette paper collection section, the inlet of which corresponds to the position of the positive pressure chamber; The cutting assembly includes a circular blade, and a gap is formed at the bottom of the cigarette guide groove. The cutting edge of the circular blade enters the cigarette guide groove through the gap at the bottom of the cigarette guide groove.

2. The cigarette paper and tobacco shred separation device according to claim 1, characterized in that, The cigarette guide assembly also includes: A cigarette paper guide extends from the cigarette guide groove to below the cigarette paper suction assembly, with one end of the cigarette paper guide located below the highest radial point of the cigarette without a mouthpiece when it is located in the cigarette guide groove.

3. The cigarette paper and tobacco shred separation device according to claim 1, characterized in that, One end of the smoke inlet groove is connected to the cigarette guide groove. The smoke inlet groove is used to accommodate the cigarette without a mouthpiece to be processed. The air blowing assembly is located at the end of the smoke inlet groove away from the cigarette guide groove. The air blowing assembly is connected to a positive pressure air source. The air blowing assembly is configured to blow air onto the cigarette without a mouthpiece when it detects that the smoke inlet groove contains such a cigarette without a mouthpiece, so as to blow the cigarette without a mouthpiece into the gap between the pressing wheel and the cigarette guide groove.

4. The cigarette paper tobacco separation device according to claim 1, characterized in that, The air blowing assembly includes: A mounting bracket, which is rotatably connected to the cigarette delivery assembly by a wing screw; An air valve is mounted on the fixed frame and is connected to a positive pressure air source. A nozzle is mounted on the fixed frame and connected to the air valve, with the air outlet direction of the nozzle facing the smoke inlet trough. A pressure plate is also provided at one end of the cigarette guide groove that connects to the cigarette inlet groove, and a channel for the cigarette to pass through is formed between the pressure plate and the cigarette guide groove.

5. The cigarette paper and tobacco shred separation device according to claim 1, characterized in that, Also includes: The mounting frame, the cigarette guide assembly, the pressure roller, the cutter assembly, and the cigarette paper suction assembly are mounted on the mounting frame; A drive assembly, which is mounted on the mounting bracket, includes a drive motor, a first drive wheel, a second drive wheel, and a third drive wheel connected by a synchronous belt drive. The clamping wheel is connected to the first drive wheel via a first drive shaft, the circular blade is connected to the second drive wheel via a second drive shaft, the cover is connected to the third drive wheel via a third drive shaft, and a through hole is provided at the center of the mounting base for the third drive shaft to pass through.

6. The cigarette paper tobacco separation device according to claim 5, characterized in that, The cigarette guide assembly also includes a tobacco guide plate, which is disposed on the mounting frame and located at one end of the cigarette guide groove adjacent to the cigarette paper suction assembly. The tobacco guide plate is used to guide the tobacco to the tobacco collector. The cutting blade assembly also includes a protective cover that covers the portion of the circular blade located outside the cigarette guide groove.

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