Online automatic cigarette recycling system for defective cigarette cartons

Abstract

The utility model discloses an on-line automatic cigarette recycling system for defective cigarette cartons, and relates to the field of automation of the tobacco industry. The recycling system comprises a cigarette carton disassembling system, a posture adjusting system, a cigarette box disassembling system and a cigarette sorting system. The cigarette disassembling system achieves cigarette positioning, annular cutting and stripping through a longitudinal cutting annular cutter, a transfer table and a cigarette box tearing device. The posture adjusting system is used for adjusting the posture of the boxed cigarettes and compacting the cigarettes by using a rotary pressing wheel, a guide groove, a visual inspection mechanism and the like; the box cigarette disassembling system completes three-face cutting and package disassembling of box cigarettes through a transverse moving mechanism and a cutting station. According to the cigarette sorting system, sorting, removing and storing of cigarettes are achieved by means of a plate pushing step feeding device, a visual detection mechanism and an air cylinder. The full-process unmanned operation from cigarette disassembling to cigarette stacking is achieved, the sorting and recognizing accuracy is high, precision, adaptability and economical efficiency are high, the equipment expandability is high, and the full-process unmanned cigarette disassembling machine is suitable for disassembling requirements of cigarette boxes of different specifications.

Description

Technical Field

[0001] This utility model relates to the field of tobacco industry automation, specifically to an online automatic cigarette recycling system for defective cigarette packs. Background Technology

[0002] In the traditional tobacco industry's defective cigarette recycling sector, there has long been a focus on technological bottlenecks and efficiency challenges. The current mainstream manual operation method not only requires a large labor force but also suffers from significant technological limitations. Specifically:

[0003] 1. The inefficiency and high loss of manual operation

[0004] Traditional manual recycling processes rely on manually disassembling cigarettes one by one, with a daily processing capacity of only 2,000-3,000 cigarettes. Furthermore, uneven manual handling during sorting leads to a cigarette damage rate as high as 15%-20%. The accuracy of manual sorting is also limited by individual experience, making it difficult to accurately classify cigarettes by length and filter type, resulting in a sorting error rate generally exceeding 10%. This traditional method not only wastes resources but also causes severely damaged recycled tobacco that cannot meet the standards for blending at the same grade, forcing it to be downgraded and resulting in direct economic losses.

[0005] 2. Technological bottlenecks of automated equipment

[0006] While automated dismantling equipment has partially replaced manual labor, its technical architecture has significant flaws:

[0007] Positioning error problem: Equipment using traditional vision positioning systems is prone to positioning errors of 5-10mm when the cigarette posture changes due to insufficient sensor accuracy (e.g., resolution below 0.1mm) and poor algorithm robustness. This can cause the cutting device to accidentally touch the cigarette body, resulting in mechanical damage. For example, the air-blowing equipment used in a cigarette factory had a tobacco recovery rate of only 70% due to positioning errors, and the proportion of damaged cigarettes reached 12%.

[0008] Lack of intelligent control: Most equipment lacks the ability to dynamically adjust the posture of cigarette boxes. When cigarettes tilt or flip during the conveying process, they cannot be automatically corrected, causing subsequent sorting processes to fail.

[0009] Limited Cutting Path: Existing cutting solutions generally use fixed path algorithms, such as straight-line cutting or fixed-curve cutting, which cannot adapt to the gap characteristics of different cigarette arrangements. For example, the gap between conventional cigarettes is 0.5-1mm, while the gap between thin cigarettes can reach 1.5-2mm. A single cutting path leads to a 30%-40% reduction in disassembly efficiency.

[0010] 3. Industry's need for technological upgrades

[0011] As the tobacco industry accelerates its intelligent transformation, the limitations of existing technologies are becoming increasingly apparent. For example, the widespread adoption of new composite filter cigarettes (such as those containing flavor capsules or activated carbon filters) places higher demands on the adaptability of recycling equipment. Traditional steam-powered cigarette recycling equipment, unable to prevent flavor capsule breakage and contamination of the tobacco, is no longer sufficient to meet the recycling needs of high-end cigarettes. Furthermore, the industry standard "Specification for the Judgment and Handling of Defective Cigarettes" (2024) clearly requires a tobacco recycling rate of over 90% and a damage rate controlled within 5%, standards that are generally difficult for existing equipment to meet.

[0012] Therefore, developing a defective cigarette recycling system that combines high precision, high adaptability, and economy has become a technical challenge that the industry urgently needs to solve. Utility Model Content

[0013] In view of this, the present invention provides an online automatic cigarette recycling system for defective cigarette cartons. The present invention aims to solve the following technical problems: 1. How to achieve fully automatic and precise disassembly of cigarette cartons to avoid damage to the cigarettes; 2. How to ensure consistent cutting posture of cigarette boxes and proper compaction and avoidance of cigarettes; 3. How to efficiently sort cigarettes and adapt to the needs of different cigarette rolling machines.

[0014] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0015] An online automatic cigarette recycling system for defective cigarette packs, including

[0016] A cigarette pack disassembly system is used for positioning, clamping, circumferential cutting, and peeling of cigarette packs. It includes a first conveyor belt with a limiting guide groove. The first conveyor belt has a longitudinal cutting station. A longitudinal cutting ring blade is installed on the upper part of the longitudinal cutting station, and a side clamping trigger assembly and a longitudinal cutting side clamping plate are installed on the side. When the cigarette pack is clamped at the longitudinal cutting station, the speed of the first conveyor belt is reduced to zero. The outer packaging surface of the cigarette pack is slightly protruded due to compression. A transfer platform is provided at the end of the first conveyor belt. The transfer platform includes a transfer trigger assembly and a cigarette pack tearer with suction cups. The cigarette pack tearer has a waiting station and a peeling station. When in the peeling station, the cigarette pack tearer will flip up and down so that the longitudinal cutting opening of the cigarette pack faces downwards, and drive the suction cups to open to both sides so that the cigarette pack falls out.

[0017] A posture adjustment system is used for adjusting the posture of cigarette boxes and compacting the cigarettes during sorting. It includes a rotating pressure roller and a first guide chute and a second guide chute. The first guide chute is used to change the cigarette boxes from a random posture to a longitudinal arrangement. Behind it, there is a first vision detection mechanism and a first flipping mechanism for detecting the posture of the cigarette boxes and adjusting the front and back orientation of the cigarette boxes. A high-level falling track is provided between the first guide chute and the second guide chute, which uses gravity and inertia to compact the cigarettes, so that the cigarettes tend to one side of the cigarette box to avoid the cutting end.

[0018] A cigarette box disassembly system is used for three-sided cutting and disassembly of cigarette boxes. It includes a transverse movement mechanism, in which a transverse cutting station, a lateral cutting station, and a disassembly station are provided within the operating area of ​​the transverse movement mechanism. A disassembly suction cup and a second flipping mechanism are installed on the transverse movement mechanism. When the cigarette box is picked up by the disassembly suction cup and moves to the transverse cutting station, the front face of the cigarette box is cut by a transverse cutting ring blade. When the cigarette box moves to the lateral cutting station, the sides of the cigarette box are cut by symmetrically arranged lateral cutting ring blades on both sides to determine the opposing spacing and the gap between the cigarettes. When the cut cigarette box moves to the disassembly station, the second flipping mechanism drives the lower surface of the cigarette box to rotate downward, the cigarette box packaging is torn, and the cigarettes fall due to gravity.

[0019] The cigarette sorting system is used for visual sorting, rejection, and storage of cigarettes. It includes a tiered feeding device that transports disordered cigarettes in the same direction or in the same orientation to a fourth conveyor belt. A second visual inspection mechanism is installed above the fourth conveyor belt to identify defective cigarettes and their filter orientation. When a cigarette is defective, it is rejected by a waste cigarette separation cylinder. When the cigarette filter is facing the wrong direction, it is pushed to the other side of the fourth conveyor belt by a cigarette orientation separation cylinder. When the cigarette filter is facing the right direction, it is left unprocessed. This allows the cigarettes to be transported and stored on both sides of the fourth conveyor belt according to the filter orientation.

[0020] Optionally, the longitudinally cut side clamp is driven by a side clamp cylinder to apply a thrust of 0-10N to the cigarette pack to fix it.

[0021] Optionally, the longitudinal cutting ring cutter cuts along the upper surface of the cigarette strip to a depth of 1.2 mm. After the cutting action is completed, the speed of the first conveyor belt resumes.

[0022] Optionally, the transfer table includes a transfer table base and a transfer table lifting arm rotatably mounted thereon.

[0023] Optionally, the cigarette box tearer is the actuator of the transfer table, and when not in the transfer state, it is located at the waiting station at the end of the first conveyor belt.

[0024] Optionally, when the cigarette box tearer is located at the peeling station, its suction cups open to both sides under the drive of the suction cup base, causing the cigarette boxes to fall into the cigarette box hopper. During the process of the cigarette boxes falling, the transfer table causes the cigarette box tearer to vibrate slightly.

[0025] Optionally, the cigarette box tearer also has a waste disposal station. After the cigarette box has fallen, the transfer platform moves the outer packaging of the cigarette box to the waste disposal station. The suction cup of the cigarette box tearer stops sucking air, causing the outer packaging of the cigarette box to fall into the cigarette packaging waste bin. Then the transfer platform resets.

[0026] Optionally, the surface of the rotating pressure roller is coated with silicone and rotates at a speed of 10 r / min to prevent the cigarette boxes from stacking or standing up.

[0027] Optionally, the front ends of the first and second guide troughs are provided with V-shaped guide troughs.

[0028] Optionally, the first visual inspection mechanism includes a first camera bracket and a first industrial camera mounted thereon, used to capture images of the cigarette box end face to determine whether the cigarette box is upside down.

[0029] Optionally, the first flipping mechanism includes a first clamping cylinder.

[0030] Optionally, the high-level falling track is provided with a second conveyor belt and a third conveyor belt at both ends. The cigarette box slides from the second conveyor belt through the high-level falling track with a vertical stroke of 200mm to the third conveyor belt, so that the cigarettes are closely arranged on one side inside the box and the distance between them and the front face of the cigarette box is ≥5mm, so as to avoid subsequent cutting damage.

[0031] Optionally, the second guide channel has an inlet width of 105mm and an outlet width of 58mm, arranged longitudinally to finely adjust the posture of the cigarette box falling from a high position.

[0032] Optionally, the traverse mechanism is located at the end of the third conveyor belt.

[0033] Optionally, the transverse mechanism includes a transverse mechanism body, with a disassembly suction cup cylinder, a disassembly suction cup base, and a disassembly suction cup installed at the front end of the transverse mechanism body, and a flip base installed at its rear end via a flip shaft. A second clamping cylinder body, a second clamping cylinder, and a cigarette box clamping arm are installed at the front end of the flip base.

[0034] When the cigarette box reaches below the disassembly suction cup, the disassembly suction cup cylinder moves downward, and the disassembly suction cup sucks in air to hold the cigarette box. Then, the disassembly suction cup cylinder moves upward, causing the cigarette box to leave the third conveyor belt. The second clamping cylinder moves, causing the cigarette box clamping arm to clamp the lower side of the cigarette box.

[0035] Optionally, the main body of the transverse mechanism is mounted on the transverse screw and moves laterally along it.

[0036] Optionally, the transverse cutting ring cutter is mounted on the transverse cutting screw via a transverse cutting ring cutter base, and a transverse cutting guide rod is also provided on one side.

[0037] Optionally, the side-cutting ring blade includes a first side-cutting ring blade and a second side-cutting ring blade, the distance between which is adjustable to adapt to different cigarette specifications. During cutting, the transverse mechanism carries the cigarette pack through the side-cutting ring blade at a speed of 0.1m / s, so that the blade cuts along the gap between the cigarettes to a cutting depth of 1.2mm.

[0038] Optionally, the end of the operating area of ​​the transverse mechanism is provided with a cigarette placement area and a cigarette packaging placement area, with a cigarette material bin and a cigarette packaging waste bin respectively located below them.

[0039] Optionally, when the transverse mechanism moves the cut cigarette box to above the cigarette placement area, the disassembly suction cup maintains suction, and the flipping shaft drives the second clamping cylinder to flip downwards by 90°. At this time, the cigarette box clamping arm and the disassembly suction cup move in opposite directions, causing the cigarette box packaging to be torn. At the same time, the transverse mechanism vibrates slightly back and forth to help the cigarettes fall quickly.

[0040] Optionally, after the cigarette has fallen, the second clamping cylinder cancels its action, and the cigarette box is completely held by the disassembly suction cup. When the lateral movement mechanism moves to the cigarette box placement area, the disassembly suction cup stops sucking air, and the cigarette box falls into the cigarette box waste bin.

[0041] Optionally, the plate-pushing stepped feeding device includes a stepped conveyor belt and a pusher plate that cooperates with it. The step height of the stepped conveyor belt is 5mm and the spacing is 100mm. The reciprocating frequency of the pusher plate is 0.5Hz.

[0042] Optionally, the second visual inspection mechanism includes a second industrial camera and a second camera bracket. It captures images of the cigarette surface and identifies cigarette defects such as indentations and tears using a deep learning model. When a cigarette is found to be defective, the waste cigarette distinguishing cylinder drives a push rod to remove the defective cigarette, which then falls into the waste cigarette bin via a waste cigarette guide chute.

[0043] Optionally, the end of the fourth conveyor belt is provided with a first guide groove. When cigarettes are conveyed to the fourth conveyor belt from both sides according to the direction of the filter tip, the forward-facing cigarettes are located inside the groove and the reverse-facing cigarettes are located outside the groove. They fall into the forward-facing cigarette track and the reverse-facing cigarette track respectively, and are transported and automatically stored in the forward-facing cigarette storage rack and the reverse-facing cigarette storage rack.

[0044] Optionally, the front end of the fourth conveyor belt is provided with a second guide groove, which is used to position the fed cigarette sticks on one side of the fourth conveyor belt.

[0045] The beneficial effects of this utility model are:

[0046] I. Full-process automation

[0047] The system utilizes a modular design to achieve seamless integration of the entire process from dismantling cigarette cartons, adjusting their posture, dismantling cigarette boxes, to cigarette sorting. Each system can be uniformly scheduled by a PLC controller, precisely coordinating under the drive of multiple sets of cylinders and trigger sensor signals. Positioning and clamping, circumferential cutting and peeling in the cigarette carton dismantling stage, V-shaped guide chute posture correction in the cigarette box posture adjustment stage, and visual guidance rejection in the sorting stage all require no manual intervention. Compared to traditional manual dismantling, production efficiency is significantly improved. A single production line can replace 8-10 operators and supports 24-hour continuous operation. This not only greatly reduces labor costs but also eliminates the random errors of manual operation through standardized processes, building a stable and efficient intelligent recycling system.

[0048] II. High-precision cutting

[0049] The system employs a high-precision cutting technology of "gap positioning - flexible cutting - dynamic peeling": During the disassembly of cigarette cartons, the longitudinal cutting ring blade precisely controls the cutting depth and accuracy, ensuring that only the outer packaging is cut; during the disassembly of cigarette boxes, the blade is guided to cut along the gap between the cigarette boxes and the cigarettes by positioning the gap between the cigarettes, avoiding contact with the cigarette body. Combined with the flexible adsorption of the disassembly suction cup and the impact-free falling design of the bottom edge flipping mechanism, the measured mechanical damage rate of cigarettes and the breakage rate of the filter end are effectively reduced, maximizing the preservation of the integrity of the cigarettes, providing high-quality raw materials for subsequent sorting, and significantly improving the reuse value of recycled cigarettes.

[0050] III. Intelligent Sorting

[0051] The vision sorting system integrates a high-frame-rate industrial camera with existing deep learning algorithms to achieve high-precision detection with high accuracy in identifying defective cigarettes and filter orientation, and a low rate of missed detection for defective cigarettes. During sorting, a waste cigarette separating cylinder can accurately remove defective cigarettes transported at high speed; with the help of a positive / negative separating cylinder and a first guide chute, cigarettes are neatly stacked into different storage racks according to filter orientation, resulting in high automatic sorting efficiency. This technology breaks through the limitations of traditional contact-based detection, achieving intelligent sorting of multiple cigarette models in a non-contact manner, significantly improving the flexible processing capability of the production line.

[0052] IV. Modular Design

[0053] The system adopts a parameterized and adjustable flexible architecture. Control parameters can be quickly configured through the human-machine interface. The core system is an independent modular unit, and the equipment has strong scalability, perfectly adapting to the production needs of multiple varieties and small batches in the cigarette industry. It is also suitable for the disassembly needs of cigarette boxes of different specifications. Attached Figure Description

[0054] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0055] Figure 1 This is a schematic diagram of the overall structure of the recycling system provided in this embodiment of the utility model;

[0056] Figure 2 This is a schematic diagram of the structure of the cigarette dismantling system provided in this embodiment of the utility model;

[0057] Figure 3 This is a schematic diagram of the structure of the cigarette box tearer provided in this embodiment of the utility model;

[0058] Figure 4 This is a schematic diagram of the attitude adjustment system structure provided in an embodiment of the present invention;

[0059] Figure 5 This is a schematic diagram of the cigarette box disassembly system provided in this embodiment of the utility model;

[0060] Figure 6 This is a schematic diagram of the transverse movement mechanism provided in an embodiment of the present invention;

[0061] Figure 7 This is a schematic diagram of the cigarette sorting system provided in this embodiment of the utility model;

[0062] Figure 8 This is a schematic diagram of the transverse cutting ring blade structure provided in this embodiment of the utility model;

[0063] Figure 9 This is a schematic diagram of the side-cutting ring blade structure provided in an embodiment of the present utility model;

[0064] Figure 10 A schematic diagram of the plate-pushing stepped feeding device provided in an embodiment of this utility model.

[0065] Numbering on the map:

[0066] 1 cigarette pack dismantling system, 2 posture adjustment system, 3 cigarette box dismantling system, 4 cigarette sorting system;

[0067] 101 Limiting guide groove, 102 First conveyor belt, 103 Cigarette pack, 104 Longitudinal cutting bracket, 105 Longitudinal cutting guide rod, 106 Longitudinal cutting screw, 107 Longitudinal cutting side clamp, 108 Longitudinal cutting ring knife, 109 Longitudinal cutting ring knife base, 110 Cigarette pack packaging waste bin, 111 Cigarette pack box tearer, 112 Transfer platform base, 113 Transfer platform lifting arm, 114 Longitudinal cutting side clamp cylinder, 115 Side clamp trigger photoelectric sensor, 116 Transfer trigger photoelectric sensor; 1111 Cigarette pack, 1112 Suction cup base, 1113 Suction cup, 1114 Box tearer base, 1115 Rotating shaft;

[0068] 201. Tobacco box hopper, 202. Rotary pressure roller, 203. First guide chute, 204. First camera bracket, 205. First industrial camera, 206. First flipping mechanism, 207. First clamping cylinder, 208. Second conveyor belt, 209. High-position drop track, 210. Second guide chute, 211. Third conveyor belt.

[0069] 301 Transverse Screw Support, 302 Transverse Cutting Screw, 303 Transverse Cutting Guide Rod, 304 Transverse Cutting Ring Knife Base, 305 Transverse Cutting Ring Knife, 306 Transverse Mechanism, 307 First Side Cutting Ring Knife, 308 Second Side Cutting Ring Knife, 309 Transverse Screw, 310 Cigarette Packaging Placement Area, 311 Cigarette Placement Area, 312 Cigarette Material Hopper, 313 Cigarette Packaging Waste Hopper;

[0070] 3060 cigarette pack, 3061 main body of the transverse mechanism, 3062 cigarette pack clamping arm, 3063 second clamping cylinder, 3064 cylinder body of the second clamping cylinder, 3065 flipping base, 3066 flipping shaft, 3067 disassembly suction cup cylinder, 3068 disassembly suction cup, 3069 disassembly suction cup base.

[0071] 401 Forward cigarette storage rack, 402 Forward cigarette track, 403 Reverse cigarette track, 404 Reverse cigarette storage rack, 405 First guide chute, 406 Fourth conveyor belt, 407 Waste cigarette bin, 408 Waste cigarette guide chute, 409 Second camera bracket, 410 Second industrial camera, 411 Cigarette forward / reverse separation cylinder, 412 Waste cigarette separation cylinder, 413 Second guide chute, 414 Plate pusher stepped feeding device. Detailed Implementation

[0072] 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.

[0073] Furthermore, the following description is for illustrative purposes and not for limitation, and sets forth specific details such as particular system structures and techniques to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted to avoid unnecessary detail that could obscure the description of the present invention.

[0074] Reference Figure 1 The first embodiment of this utility model relates to an online automatic cigarette recycling system for defective cigarette cartons, including a cigarette carton dismantling system 1, a posture adjustment system 2, a boxed cigarette dismantling system 3, and a cigarette sorting system 4.

[0075] Referring to Figure 2, the cigarette pack disassembly system 1 is used for positioning, clamping, circumferential cutting, and peeling of cigarette packs; it includes a first conveyor belt 102 with a limiting guide groove 101. The first conveyor belt 102 is provided with a longitudinal cutting station. A longitudinal cutting ring knife 108 is installed on the upper part of the longitudinal cutting station, and a side clamping trigger photoelectric sensor 115 and a longitudinal cutting side clamping plate 107 are installed on the side. When the cigarette pack 103 is clamped at the longitudinal cutting station, the speed of the first conveyor belt 102 is set to zero. The outer packaging surface of the cigarette pack is slightly bulged due to compression. A transfer platform is provided at the end of the first conveyor belt 102. The transfer platform includes a transfer trigger photoelectric sensor 116 and a cigarette pack tearer 111 with a suction cup 1113. The cigarette pack tearer 111 has a waiting station and a peeling station. When it is in the peeling station, the cigarette pack tearer 111 will flip up and down so that the longitudinal cutting opening of the cigarette pack 103 faces downward, and drive the suction cup 1113 to open to both sides so that the cigarette pack falls off.

[0076] Referring to Figure 3, the cigarette box tearer 111 is the actuator of the transfer table, realizing the disassembly and transfer of the cigarette boxes 1111. In the non-transfer state, it is located at the waiting station at the end of the first conveyor belt 102. The cigarette boxes 1111 are sucked by the suction cup 1113 of the cigarette box tearer 111. The suction cup 1113 is mounted on the suction cup base 1112, and the suction cup base 1112 is mounted on the cigarette box tearer base 1114 via the rotating shaft 1115.

[0077] Optionally, when the cigarette box tearer 111 is located at the peeling station, its suction cup 1113 opens to both sides under the drive of the suction cup base 1112, causing the cigarette box to fall into the cigarette box hopper 201. During the process of the cigarette box falling, the transfer table causes the cigarette box tearer 111 to vibrate slightly.

[0078] Referring to Figure 4, the posture adjustment system 2 is used for adjusting the posture of cigarette boxes and compacting the cigarettes; it includes a rotating pressure roller 202 and a first guide trough 203 and a second guide trough 210. The first guide trough 203 is used to change the cigarette boxes from a random posture to a longitudinal arrangement. A first visual detection mechanism and a first flipping mechanism 206 are provided behind it to detect the posture of the cigarette boxes and adjust the front and back orientation of the cigarette boxes. A high-level falling track 209 is provided between the first guide trough 203 and the second guide trough 210, which uses gravity and inertia to compact the cigarettes, so that the cigarettes tend to one side of the cigarette box to avoid the cutting end.

[0079] Optionally, the first visual inspection mechanism includes a first camera bracket 204 and a first industrial camera 205 mounted thereon, for capturing images of the cigarette box end face and determining whether the cigarette box is upside down based on a deep learning model.

[0080] Optionally, the first flipping mechanism 206 includes a first clamping cylinder 207.

[0081] Optionally, the high-position drop track 209 is provided with a second conveyor belt 208 and a third conveyor belt 211 at both ends. The cigarette box slides from the second conveyor belt 208 through the high-position drop track 209 with a vertical stroke of 200mm to the third conveyor belt 211, so that the cigarettes are closely arranged on one side inside the box and the distance between them and the front end of the cigarette box is ≥5mm, so as to avoid subsequent cutting damage.

[0082] Referring to Figure 5, the cigarette box disassembly system 3 is used for three-sided cutting and disassembly of cigarette boxes; it includes a transverse movement mechanism 306, which has a transverse cutting station, a lateral cutting station, and a disassembly station within its operating area. A disassembly suction cup 3068 and a second flipping mechanism are installed on the transverse movement mechanism 306. When the cigarette box is sucked by the disassembly suction cup 3068 and moved to the transverse cutting station, the transverse cutting ring blade 305 cuts the area with larger gaps on the front face of the cigarette box. When the cigarette box moves to the lateral cutting station, the lateral cutting ring blades arranged symmetrically on both sides cut the sides of the cigarette box. When the cut cigarette box moves to the disassembly station, the second flipping mechanism drives the lower surface of the cigarette box to rotate downwards, tearing the cigarette box packaging and causing the cigarette to fall due to gravity.

[0083] Reference Figure 8 Optionally, the transverse cutting ring blade 305 is mounted on the transverse cutting screw 302 via the transverse cutting ring blade base 304, and a transverse cutting guide rod 303 is also provided on one side. During cutting, the transverse cutting ring blade base 304 moves horizontally on the transverse cutting screw 302, thereby driving the transverse cutting ring blade 305 to move horizontally and finally achieve the cutting of the front end face of the cigarette box.

[0084] Reference Figure 9Optionally, the side-cutting ring blade includes a first side-cutting ring blade 307 and a second side-cutting ring blade 308. The opposing distance between the first side-cutting ring blade 307 and the second side-cutting ring blade 308 is adjustable to adapt to the cutting requirements of different cigarette specifications. The cutting surfaces of the first side-cutting ring blade 307 and the second side-cutting ring blade 308 coincide with the cutting surface of the transverse cutting ring blade 305. During cutting, the transverse moving mechanism 306 carries the cigarette box through the side-cutting ring blade at a speed of 0.1 m / s, thereby completing the cutting of the left and right end faces of the cigarette box. Thus, under the combined action of the transverse cutting ring blade 305, the first side-cutting ring blade 307, and the second side-cutting ring blade 308, the three-sided ring cutting of the cigarette box is completed.

[0085] Optionally, the traverse mechanism 306 is located at the end of the third conveyor belt 211.

[0086] Referring to Figure 6, the transverse mechanism 306 includes a transverse mechanism body 3061. The front end of the transverse mechanism body 3061 is equipped with a disassembly suction cup cylinder 3067, a disassembly suction cup base 3069, and a disassembly suction cup 3068. The rear end is equipped with a flip base 3065 via a flip shaft 3066. The front end of the flip base 3065 is equipped with a second clamping cylinder body 3064, a second clamping cylinder 3063, and a cigarette box clamping arm 3062.

[0087] When the cigarette box 3060 reaches below the disassembly suction cup 3068, the disassembly suction cup cylinder 3067 moves downward, and the disassembly suction cup 3068 draws air to suck up the cigarette box 3060. Then, the disassembly suction cup cylinder 3067 moves upward, causing the cigarette box 3060 to leave the third conveyor belt 211. The second clamping cylinder 3063 then moves, causing the cigarette box clamping arm 3062 to clamp the lower side of the cigarette box 3060.

[0088] Optionally, the transverse mechanism body 3061 is mounted on the transverse screw 309 and moves laterally along it.

[0089] Optionally, the end of the operating area of ​​the transverse mechanism 306 is provided with a cigarette placement area 311 and a cigarette packaging placement area 310, and below them are respectively provided a cigarette material bin 312 and a cigarette packaging waste bin 313.

[0090] Optionally, when the transverse mechanism 306, carrying the cut cigarette boxes 3060, moves above the cigarette placement area 311, the disassembly suction cup 3068 maintains suction, and the flipping shaft 3066 drives the second clamping cylinder 3063 to flip downwards by 90°. At this time, the cigarette box clamping arm 3062 and the disassembly suction cup 3068 move in opposite directions, causing the cigarette box packaging to tear. Simultaneously, the transverse mechanism 306 vibrates slightly back and forth to help the cigarettes fall quickly. This process ensures that the cigarettes inside the cigarette box maintain a consistent position during disassembly, so when the cigarettes naturally fall into the cigarette hopper 312, most cigarettes face the same direction, while a small number of cigarettes change direction due to collisions or other factors.

[0091] Optionally, after the cigarette has fallen, the second clamping cylinder 3063 stops operating, and the cigarette pack is completely held by the disassembly suction cup 3068. When the lateral movement mechanism 306 moves to the cigarette pack placement area 310, the disassembly suction cup 3068 stops sucking air, and the cigarette pack falls into the cigarette pack waste bin 313.

[0092] Referring to Figure 7, the cigarette sorting system 4 is used for visual sorting, rejection, and classified storage of cigarettes; it includes a stepped feeding device 414, as shown in Figure 7. Figure 10 The stepped feeding device 414 is used to lift the cigarettes falling into the cigarette hopper 312 to the second guide groove 413 on the fourth conveyor belt 406. A second vision detection mechanism is provided above the fourth conveyor belt 406 to identify defective cigarettes and filter tip orientation information. When it is a defective cigarette, it is rejected by the waste cigarette distinguishing cylinder 412. When the cigarette (defined as the filter tip orientation is opposite to the conveying direction of the fourth conveyor belt 406, i.e., the cigarette filter tip orientation is reversed) has a reversed filter tip orientation, it is pushed to the other side of the fourth conveyor belt 406 by the cigarette forward and reverse distinguishing cylinder 411. When the cigarette (defined as the filter tip orientation is the same as the conveying direction of the fourth conveyor belt 406, i.e., the cigarette filter tip orientation is forward) has a forward filter tip orientation, it is not processed, and this part of the cigarettes is the majority. The cigarettes are conveyed and stored on both sides of the fourth conveyor belt 406 according to the filter tip orientation.

[0093] Optionally, the end of the fourth conveyor belt 406 is provided with a first guide groove 405. When cigarettes are conveyed to both sides of the fourth conveyor belt 406 according to the direction of the filter tip, the forward-facing cigarettes are located inside the groove and the reverse-facing cigarettes are located outside the groove. They fall into the forward-facing cigarette track 402 and the reverse-facing cigarette track 403 respectively, and are transported and automatically stored in the forward-facing cigarette storage rack 401 and the reverse-facing cigarette storage rack 404.

[0094] Optionally, the longitudinal cutting side clamp 107 is driven by the side clamp cylinder 114 to apply a 5N thrust to the cigarette pack 103 to fix it. The slight protrusions generated by the compression of the cigarette pack outer packaging are used to achieve a slight separation between the cigarette pack outer packaging and the boxed cigarettes. Then, a ring cutting tool is used to cut the cigarette pack outer packaging.

[0095] Optionally, the longitudinal cutting ring blade 108 is mounted on the longitudinal cutting station via a longitudinal cutting bracket 104, a longitudinal cutting guide rod 105, and a longitudinal cutting screw 106. The longitudinal cutting ring blade 108 cuts along the upper surface of the cigarette strip 103 to a depth of 1.2 mm. After the cutting action is completed, the speed of the first conveyor belt 102 returns to normal.

[0096] Optionally, the transfer platform includes a transfer platform base 112 and a transfer platform lifting arm 113 rotatably mounted thereon.

[0097] Optionally, the cigarette box tearer 111 also has a waste disposal station. After the cigarette box has fallen, the transfer platform moves the outer packaging of the cigarette box to the waste disposal station. The suction cup 1113 of the cigarette box tearer 111 stops sucking air, causing the outer packaging of the cigarette box to fall into the cigarette packaging waste bin 110. Then the transfer platform resets.

[0098] Optionally, the surface of the rotating pressure roller 202 is covered with silicone and rotates at a speed of 10 r / min to prevent the cigarette boxes from stacking or standing up.

[0099] Optionally, the front end of the first guide trough 203 and the second guide trough 210 is provided with a V-shaped guide trough.

[0100] Optionally, the inlet width of the first guide trough 203 is 200mm, and the outlet width is 58mm.

[0101] Optionally, the second guide trough 210 has an inlet width of 105mm and an outlet width of 58mm, arranged longitudinally to finely adjust the posture of the cigarette box falling from a high position.

[0102] Optionally, the second visual inspection mechanism includes a second industrial camera 410 and a second camera bracket 409. It captures images of the cigarette surface and identifies cigarette defects such as indentations and tears using an existing deep learning model. When a cigarette is found to be defective, the waste cigarette distinguishing cylinder 412 drives a push rod to remove the defective cigarette, which then falls into the waste cigarette bin 407 via the waste cigarette guide 408.

[0103] Optionally, the front end of the fourth conveyor belt 406 is provided with a second guide groove 413, which is used to position the fed cigarette sticks on one side of the fourth conveyor belt 406.

[0104] The second embodiment of this utility model provides a method for online automatic cigarette recycling of defective cigarette packs based on the system described in the first embodiment, including the following steps:

[0105] S1.1 Cigarette Carton Positioning

[0106] The cigarette pack 103 is fed into the longitudinal cutting station through the first conveyor belt 102 with the limiting guide groove 101. The speed of the conveyor belt is as low as 0.2m / s to avoid damage during side clamping. After triggering, the longitudinal cutting side clamp 107 is activated and the speed of the first conveyor belt 102 is set to zero.

[0107] The cigarette pack 103 is fixed by the longitudinal side clamps 107 on both sides (pressure adjustable range 0-10N), which completes the positioning and makes a slight bulge on the upper surface of the cigarette pack, so as to achieve a slight separation between the outer packaging of the cigarette pack and the box of cigarettes.

[0108] S1.2 Circumferential Cutting and Peeling

[0109] The longitudinal cutting ring blade 108 above the first conveyor belt 102 cuts along the upper surface of the cigarette pack 103 to a depth of 1.2mm (only penetrating the outer packaging without damaging the cigarette box). After the cutting action is completed, the speed of the first conveyor belt 102 returns to normal.

[0110] When the cigarette box tearer 111 is not in a transfer state, it waits at the end of the first conveyor belt 102. When the transfer trigger photoelectric sensor 116 at the front end has a falling edge signal, it indicates that the cigarette box 103 has arrived, which triggers the transfer action. The suction cup 1113 on the cigarette box tearer 111 starts to move, fixes the cigarette box 103, and moves it to the peeling station through the transfer table.

[0111] The cigarette box tearer 111 flips the cigarette box 103 so that the vertical cut opening faces downwards, and drives the suction cup 1113 to open to both sides so that the cigarette box falls out;

[0112] During the process of the cigarette box falling, the transfer platform causes the cigarette box tearer 111 to vibrate slightly up, down, left and right to help the cigarette box fall quickly.

[0113] After the cigarette box has fallen off, the transfer platform moves the outer packaging of cigarette pack 103 to the waste disposal station. The suction cup 1113 of the cigarette pack tearer 111 stops sucking air, and the outer packaging of cigarette pack 103 falls into the cigarette pack packaging waste bin 110.

[0114] The transfer station was then reset.

[0115] S2.1 Attitude Guidance and Detection

[0116] The pressure roller 202 rotates at a speed of 10 r / min to prevent the cigarette boxes from stacking or standing upright.

[0117] The first feed trough 203 forces the cigarette boxes to change from a random posture to a longitudinal arrangement through a tapering structure.

[0118] The first vision detection mechanism captures an image of the cigarette box's end face. The existing deep learning model is used to determine whether the cigarette box is upside down. If an abnormality is detected, the first flipping mechanism 206 is triggered to rotate the cigarette box 180° to adjust its front and back orientation.

[0119] S2.2 Cigarette Compaction

[0120] The cigarette box slides from the second conveyor belt 208 to the third conveyor belt 211 via the high-position drop track 209 (vertical travel 200mm). Gravity and inertia are used to compact the cigarettes, making them close together on one side of the cigarette box, with a distance of ≥5mm from the front face of the cigarette box, to avoid damage from subsequent cutting.

[0121] The second guide chute 210 finely adjusts the posture of the high-position falling cigarette boxes to be arranged vertically;

[0122] S3.1 Cigarette box cutting

[0123] The transverse mechanism 306 waits at the end of the third conveyor belt 211. When the cigarette box reaches below the disassembly suction cup 3068, the disassembly suction cup cylinder 3067 moves downward and sucks the cigarette box. The disassembly suction cup cylinder 3067 moves upward and makes the cigarette box leave the third conveyor belt 211. The second clamping cylinder 3063 is activated and the cigarette box clamping arm 3062 clamps the lower side of the cigarette box.

[0124] When the cigarette pack reaches the transverse cutting station, the front face of the cigarette pack is cut by the transverse cutting ring blade 305;

[0125] When the cigarette box reaches the side cutting station, the opposing distance and cigarette gap are positioned by the symmetrically arranged side cutting ring blades on both sides. The transverse movement mechanism 306 carries the cigarette box through the side cutting ring blades at a speed of 0.1m / s. The cutting surfaces of the first side cutting ring blade 307 and the second side cutting ring blade 308 coincide with the cutting surface of the transverse cutting ring blade 305, so that the blade cuts along the cigarette gap to a cutting depth of 1.2mm, completing the cutting of the left and right end faces of the cigarette box.

[0126] S3.2 Packaging Breakdown

[0127] The transverse mechanism 306 carries the cut cigarette boxes to the top of the disassembly station. The flipping shaft 3066 drives the second clamping cylinder 3063 to flip downwards by 90°. The cigarette box clamping arm 3062 and the disassembly suction cup 3068 move in opposite directions, tearing the cigarette box packaging. At the same time, the transverse mechanism 306 vibrates slightly back and forth to help the cigarettes fall quickly into the cigarette placement area 311.

[0128] After the cigarette sticks have fallen, the second clamping cylinder 3063 stops operating. At this time, the cigarette pack is completely held by the disassembly suction cup 3068. The lateral movement mechanism 306 moves to the cigarette pack placement area 310, the disassembly suction cup 3068 stops sucking air, and the cigarette pack falls into the cigarette pack waste bin 313.

[0129] S4.1 Plate Pusher Feeding

[0130] By using a stepped conveyor belt in conjunction with a pusher plate (reciprocating frequency 0.5Hz), the disordered cigarettes are transported in the same direction or in the same orientation to the fourth conveyor belt 406.

[0131] S4.2 Vision Sorting

[0132] The second industrial camera 410 captures images of the cigarette surface, and the existing deep learning model identifies cigarette defects such as indentations and tears. This triggers the waste cigarette separation cylinder 412 to drive the push rod to remove the defective cigarettes, which then fall into the waste cigarette bin 407 via the waste cigarette guide 408.

[0133] The second industrial camera 410 simultaneously outputs the orientation information of the cigarette filter tip. When the cigarette filter tip is facing the opposite direction, the cigarette forward / backward differentiation cylinder 411 is activated, driving the push rod to push the cigarette to one side of the fourth conveyor belt 406. If it is facing the forward direction, no action is taken, so that the cigarettes are transported to both sides of the fourth conveyor belt 406 according to the orientation of the filter tip.

[0134] S4.3 Automatic Storage

[0135] When the cigarette passes through the first guide groove 405, the forward-facing cigarette is inside the groove and the reverse-facing cigarette is outside the groove. Finally, they fall into the forward-facing cigarette track 402 and the reverse-facing cigarette track 403 respectively, and are transported and automatically stored in the forward-facing cigarette storage rack 401 and the reverse-facing cigarette storage rack 404.

[0136] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. An online automatic cigarette recycling system for defective cigarette packs, characterized in that: include The cigarette pack dismantling system includes a first conveyor belt with a limiting guide groove. The first conveyor belt is provided with a longitudinal cutting station. A longitudinal cutting ring knife is installed on the upper part of the longitudinal cutting station, and a side clamp triggering component and a longitudinal cutting side clamping plate are installed on the side. A transfer platform is provided at the end of the first conveyor belt. The transfer platform includes a transfer triggering component and a cigarette pack tearer with suction cups. The cigarette pack tearer has a waiting station and a peeling station. When it is in the peeling station, the cigarette pack tearer will flip up and down so that the longitudinal cutting opening of the cigarette pack faces downward, and drive the suction cups to open to both sides so that the cigarette pack falls off. The posture adjustment system includes a rotating pressure roller and a first guide trough and a second guide trough. The first guide trough is used to change the cigarette box from a random posture to a longitudinal arrangement. A first vision detection mechanism and a first flipping mechanism are set behind it to detect the cigarette box posture and adjust the front and back orientation of the cigarette box. A high-level falling track is provided between the first guide trough and the second guide trough, which uses gravity and inertia to compact the cigarette sticks, so that the cigarette sticks tend to one side of the cigarette box to avoid the cutting end. The cigarette box disassembly system includes a transverse movement mechanism. The transverse movement mechanism has a transverse cutting station, a lateral cutting station, and a disassembly station within its operating area. A disassembly suction cup and a second flipping mechanism are installed on the transverse movement mechanism. When the cigarette box is picked up by the disassembly suction cup and moves to the transverse cutting station, the front end of the cigarette box is cut by a transverse cutting ring blade. When the cigarette box moves to the lateral cutting station, the side of the cigarette box is cut by symmetrically arranged lateral cutting ring blades on both sides to position the opposing distance and the gap between the cigarettes. When the cut cigarette box moves to the disassembly station, the second flipping mechanism drives the lower surface of the cigarette box to rotate downward, the cigarette box packaging is torn, and the cigarettes fall due to gravity. The cigarette sorting system includes a tiered feeding device that transports disordered cigarettes in the same direction or in the same orientation onto a fourth conveyor belt. A second vision detection mechanism is installed above the fourth conveyor belt to identify defective cigarettes and their filter orientation. When a cigarette is defective, it is rejected by a waste cigarette separation cylinder. When the cigarette filter is facing the wrong direction, it is pushed to the other side of the fourth conveyor belt by a cigarette orientation separation cylinder. When the cigarette filter is facing the right direction, it is left unprocessed. This allows the cigarettes to be transported and stored on both sides of the fourth conveyor belt according to the filter orientation.

2. The online automatic cigarette recycling system for defective cigarette packs according to claim 1, characterized in that: The transfer table includes a transfer table base and a transfer table lifting arm that is rotatably mounted thereon. The cigarette box tearer is the actuator of the transfer table, and when not in the transfer state, it is located at the waiting station at the end of the first conveyor belt. When the cigarette box tearer is in the peeling station, its suction cups open to both sides under the drive of the suction cup base, causing the cigarette boxes to fall into the cigarette box hopper. During the process of the cigarette boxes falling, the transfer table causes the cigarette box tearer to vibrate slightly.

3. The online automatic cigarette recycling system for defective cigarette packs according to claim 1, characterized in that: The cigarette box tearer also has a waste disposal station. After the cigarette box has fallen, the transfer platform moves the outer packaging of the cigarette box to the waste disposal station. The suction cup of the cigarette box tearer stops sucking air, causing the outer packaging of the cigarette box to fall into the cigarette packaging waste bin. Then the transfer platform resets.

4. The online automatic cigarette recycling system for defective cigarette packs according to claim 1, characterized in that: The high-level drop track is equipped with a second conveyor belt and a third conveyor belt at both ends. The cigarette box slides from the second conveyor belt through the high-level drop track with a vertical stroke of 200mm to the third conveyor belt, so that the cigarettes are closely arranged on one side inside the box and the distance between them and the front face of the cigarette box is ≥5mm, avoiding subsequent cutting damage.

5. The online automatic cigarette recycling system for defective cigarette packs according to claim 1, characterized in that: The transverse mechanism includes a transverse mechanism body. The front end of the transverse mechanism body is equipped with a disassembly suction cup cylinder, a disassembly suction cup base, and a disassembly suction cup. The rear end of the body is equipped with a flipping base via a flipping shaft. The front end of the flipping base is equipped with a second clamping cylinder body, a second clamping cylinder, and a cigarette box clamping arm. When the cigarette box reaches below the disassembly suction cup, the disassembly suction cup cylinder moves downward, and the disassembly suction cup sucks in air to hold the cigarette box. Then, the disassembly suction cup cylinder moves upward, causing the cigarette box to leave the third conveyor belt. The second clamping cylinder moves, causing the cigarette box clamping arm to clamp the lower side of the cigarette box.

6. The online automatic cigarette recycling system for defective cigarette packs according to claim 1, characterized in that: At the end of the operating area of ​​the transverse mechanism are a cigarette holder area and a cigarette packing area, with a cigarette hopper and a cigarette packing waste hopper located below them respectively.

7. The online automatic cigarette recycling system for defective cigarette packs according to claim 1, characterized in that: The transverse cutting ring cutter is mounted on the transverse cutting screw via a transverse cutting ring cutter base, and a transverse cutting guide rod is also provided on one side of it; The side-cutting ring blade includes a first side-cutting ring blade and a second side-cutting ring blade, the distance between which is adjustable to adapt to different cigarette specifications. During cutting, the transverse mechanism carries the cigarette box past the side-cutting ring blade at a speed of 0.1m / s, so that the blade cuts into the gap between the cigarettes.

8. The online automatic cigarette recycling system for defective cigarette packs according to claim 1, characterized in that: The second visual inspection mechanism includes a second industrial camera and a second camera bracket. It captures images of the cigarette surface and identifies defects such as indentations and tears in the cigarette through a deep learning model. When a defective cigarette is detected, the waste cigarette distinguishing cylinder drives a push rod to remove the defective cigarette, which then falls into the waste cigarette bin via a waste cigarette guide chute.

9. The online automatic cigarette recycling system for defective cigarette packs according to claim 1, characterized in that: The fourth conveyor belt is provided with a first guide groove at its end. When cigarettes are conveyed to the fourth conveyor belt from both sides according to the direction of their filters, the forward-facing cigarettes are located inside the groove and the reverse-facing cigarettes are located outside the groove. They fall into the forward-facing cigarette track and the reverse-facing cigarette track respectively, and are transported and automatically stored in the forward-facing cigarette storage rack and the reverse-facing cigarette storage rack.

10. The online automatic cigarette recycling system for defective cigarette packs according to claim 1 or 9, characterized in that: The front end of the fourth conveyor belt is provided with a second guide groove, which is used to position the fed cigarette sticks on one side of the fourth conveyor belt.

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