A kind of slitting machine blanking anti-blocking control device and method

Abstract

The application relates to the technical field of tobacco production equipment, and discloses a fall material anti-blocking control device and method of a slitting machine, which comprises a first conveying belt, a second conveying belt, a cutter, and an anti-blocking mechanism. The cutter is arranged above the discharge end of the first conveying belt. The feeding end of the second conveying belt is located below the discharge end of the first conveying belt. A flow guide plate is fixed between the first conveying belt and the second conveying belt. The anti-blocking mechanism and the flow guide plate are arranged at intervals to form a connecting channel for conveying tobacco bales. The anti-blocking mechanism is located above the second conveying belt, and the anti-blocking mechanism is arranged at intervals with the cutter. The anti-blocking mechanism can move along the conveying direction of the first conveying belt. The anti-blocking mechanism has a supporting part for supporting the tobacco bales. The supporting part can rotate relative to the flow guide plate. The falling speed of the tobacco bales is effectively limited, the stress balance of the accumulated material is actively destroyed, and the tobacco bales can smoothly pass under the action of gravity. The active prevention and automatic elimination of the blocking of the connecting channel are realized.

Description

Technical Field

[0001] This application relates to the field of tobacco production equipment technology, and specifically to a material discharge anti-blocking control device and method for a slitting machine. Background Technology

[0002] In the cigarette manufacturing workshop, the slitting machine is one of the core processing equipment, used to cut the packaged cigarette packs into fixed-length cigarette blocks for subsequent processes such as loosening and rehydration. A slitting machine typically includes a first conveyor belt, a second conveyor belt, and a cutter. The cutter is positioned above the discharge end of the first conveyor belt, and the feed end of the second conveyor belt is located below the discharge end of the first conveyor belt. A guide plate is fixed between the first and second conveyor belts, and the slit cigarette packs slide onto the second conveyor belt via the guide plate for subsequent processes.

[0003] In existing technologies, such as Figure 6 As shown, to ensure that the cigarette packs can smoothly slide from the first conveyor belt to the second conveyor belt, the guide plate is usually designed with an inclined structure. However, the design of the guide plate faces a dilemma: if the slope of the guide plate is designed to be steep, the cut cigarette packs will slide down faster under the action of gravity and hit the second conveyor belt directly with a large impact force. This will not only easily cause the cigarette packs to break and increase the breakage rate, but also generate a lot of dust and noise, affecting the production environment and product quality; if the slope of the guide plate is designed to be gentle, a longer guide plate is required to achieve the same height difference. This will inevitably lead to a significant increase in the footprint of the equipment in the conveying direction, which is particularly unfavorable for tobacco processing production lines with limited workshop space.

[0004] To address these issues, some existing technical solutions involve adding a plate structure above the guide plate to apply resistance to the falling tobacco packs and limit their descent speed. However, the connecting channel between the plate and the guide plate has limited space. When the tobacco pack size fluctuates, the tobacco pack's shape is irregular, or fragments accumulate, the tobacco pack is prone to jamming or clogging within this channel. Once clogging occurs, manual shutdown for cleaning is usually required, which not only affects production efficiency but also poses safety hazards. Summary of the Invention

[0005] This application provides a material discharge anti-blocking control device and method for a slitting machine, which aims to solve the above-mentioned problems.

[0006] In one embodiment, a slitting machine material discharge anti-blocking control device is provided, comprising: a first conveyor belt, a second conveyor belt, a cutter, and an anti-blocking mechanism; The cutter is positioned above the discharge end of the first conveyor belt; the feed end of the second conveyor belt is located below the discharge end of the first conveyor belt; a guide plate is fixedly provided between the first conveyor belt and the second conveyor belt; the anti-blocking mechanism and the guide plate are arranged at intervals to form a connecting channel for conveying cigarette packs. The anti-blocking mechanism is located above the second conveyor belt and is spaced apart from the cutter; the anti-blocking mechanism can move along the conveying direction of the first conveyor belt; the anti-blocking mechanism has a supporting part for supporting the cigarette pack; the supporting part can rotate relative to the guide plate.

[0007] The cutter includes a drive mechanism and a cutter body. The drive mechanism consists of a motor and a sprocket to drive the cutter body to move up and down reciprocally.

[0008] In one embodiment, the anti-blocking mechanism includes a movable component and a rotating component; the movable component is movable along the conveying direction of the first conveyor belt, the rotating component is fixedly connected to the movable component, and the supporting part is fixedly installed on the rotating component.

[0009] In one embodiment, the moving component includes a slide rail, a connecting plate, and a first drive motor; the slide rail is arranged along the conveying direction of the first conveyor belt; the connecting plate is slidably connected to the slide rail; the first drive motor is fixedly connected to the slide rail, and the output end of the first drive motor is drivenly connected to the connecting plate through a sprocket.

[0010] Specifically, the slide rail has a groove, the connecting plate has a slider that is slidably connected to the groove, the first drive motor is fixedly mounted on the slide rail, and the two ends of the groove are rotatably connected to the wheels; the output end of the first drive motor is engaged with a closed chain, the chain engages with the two wheels for transmission, the slider is fixedly connected to the chain, and the chain can pull the slider to reciprocate within the groove.

[0011] In one embodiment, the rotating component includes a connecting rod, a rotating shaft, a support plate, and a second drive motor; the connecting rod is fixedly connected to the connecting plate; the rotating shaft is rotatably connected to the connecting rod; the support plate is fixedly connected to the rotating shaft; the second drive motor is drively connected to the rotating shaft; and the support plate has the support portion.

[0012] In one embodiment, the second drive motor is connected to the rotating shaft via a sprocket.

[0013] Specifically, the output end of the second drive motor and the shaft can also be driven by a belt.

[0014] In one embodiment, the support portion is L-shaped, and there are two support plates, which are symmetrically arranged on both sides of the rotating shaft.

[0015] In one embodiment, there are two connecting rods, and the two connecting rods are rotatably connected to the two ends of the rotating shaft respectively.

[0016] Specifically, there are two slide rails, which are arranged on both sides of the connecting plate.

[0017] In one embodiment, the device further includes a processor, a first position sensor for detecting that the cutter is at its upper stop point, a second position sensor for detecting that the cigarette pack has reached the second conveyor belt, and a vision module for detecting material blockage; the first position sensor, the second position sensor, the vision module, the cutter, the first drive motor, and the second drive motor are all electrically connected to the processor.

[0018] Specifically, the first position sensor is mounted on the top dead center of the cutter body to detect its position. The second position sensor is fixed above the second conveyor belt to detect cigarette packs sliding off the guide plate onto the second conveyor belt. The vision module is fixed above the anti-blocking mechanism and its camera is pointed towards the connecting channel. The vision module is used to detect blockages in the connecting channel.

[0019] Both the first and second position sensors are existing photoelectric sensors, and the vision module includes existing industrial cameras. The processor is commercially available.

[0020] In one embodiment, the connecting plate is equipped with a trigger switch for contacting the cigarette pack, and the trigger switch is electrically connected to the processor.

[0021] Specifically, the trigger switch is the existing push-button switch.

[0022] In one solution, another method for preventing material blockage in a slitting machine is provided, comprising the following steps: S1. Based on the information from the trigger switch, trigger the cutter to cut the cigarette pack; S2. Adjust the size of the connecting channel by moving the movable component; S3. The rotating component rotates to feed the cigarette packs into the second conveyor belt.

[0023] The beneficial effects of this application are: An anti-blocking mechanism is installed above the guide plate, forming a connecting channel for conveying cigarette packs. The anti-blocking mechanism can move along the conveying direction of the first conveyor belt, and its supporting part can rotate relative to the guide plate. When the cigarette packs pass through the connecting channel, the supporting part provides support and obstruction, effectively limiting the falling speed of the cigarette packs and preventing them from directly hitting the second conveyor belt and breaking. At the same time, the slow descent effect can be achieved without extending the length of the guide plate, avoiding a significant increase in the equipment's footprint.

[0024] The anti-blocking mechanism can move along the conveying direction of the first conveyor belt, and the supporting part can rotate relative to the guide plate. When cigarette packs accumulate or become stuck in the connecting channel, the anti-blocking mechanism can be driven to move along the conveying direction or the supporting part can be driven to rotate, changing the effective flow cross-section of the connecting channel and the stress state of the cigarette packs. This actively disrupts the force balance of the accumulated material, allowing the cigarette packs to pass smoothly under gravity. Compared to the shortcomings of existing technologies where fixed plate structures can only be manually cleaned after the machine is stopped, this technology achieves active prevention and automatic elimination of blockages in the connecting channel.

[0025] The anti-blocking mechanism can move along the conveying direction of the first conveyor belt, allowing the width of the connecting channel to be dynamically adjusted according to the size of the cigarette packs; the support part can rotate relative to the guide plate, allowing the obstruction angle and force of the support part on the cigarette packs to be adaptively adjusted according to the cigarette pack's posture and falling speed. This adjustable design can adapt to the working conditions of different specifications of cigarette packs and different production rhythms.

[0026] By adding an anti-blocking mechanism to the existing slitting machine, the contradiction between "steep slope impact" and "gentle slope land occupation" in the design of the guide plate and the problem of blockage in the connecting channel can be solved simultaneously without large-scale modification of the original equipment. It has good applicability and economic benefits. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, 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.

[0028] Figure 1 This is a schematic diagram of the main structure of an anti-blocking control device according to an embodiment of this application (before cutting the material); Figure 2 This is a schematic diagram of the main structure of an anti-blocking control device according to an embodiment of this application (after material cutting); Figure 3 This is a schematic diagram of the main structure of a movable component according to an embodiment of this application; Figure 4 This is a schematic diagram of the left side of an embodiment of the anti-blocking control device of this application; Figure 5 This is a schematic diagram of the processor control flow according to an embodiment of this application; Figure 6 This is a schematic diagram of the structure of a conventional slitting machine flow guiding device according to an embodiment of this application; Figure 7 This is a schematic flowchart of an embodiment of the anti-blocking control method of this application; The components include: 1. First conveyor belt; 2. Second conveyor belt; 3. Cutter; 4. Anti-blocking mechanism; 41. Moving component; 411. Slide rail; 412. Connecting plate; 413. First drive motor; 414. Slide groove; 415. Slider; 416. Rotary wheel; 417. Chain; 42. Rotating component; 421. Connecting rod; 422. Rotating shaft; 423. Support plate; 424. Second drive motor; 5. Guide plate; 6. Connecting channel; 7. Processor; 71. First position sensor; 72. Second position sensor; 73. Vision module; 74. Trigger switch; 8. Cigarette pack. Detailed Implementation

[0029] The specific embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but are not intended to limit the scope of this application. Similarly, the following examples are only some embodiments of this application, not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0035] This application proposes improvements and innovations, and presents the following embodiments.

[0036] In some implementations, please refer to Figures 1 to 5 The present invention provides a material discharge anti-blocking control device for a slitting machine, comprising: a first conveyor belt 1, a second conveyor belt 2, a cutter 3, and an anti-blocking mechanism 4; The cutter 3 is positioned above the discharge end of the first conveyor belt 1; the feed end of the second conveyor belt 2 is located below the discharge end of the first conveyor belt 1; a guide plate 5 is fixedly provided between the first conveyor belt 1 and the second conveyor belt 2; the anti-blocking mechanism 4 and the guide plate 5 are arranged at intervals to form a connecting channel 6 for conveying the cigarette pack 8. The anti-blocking mechanism 4 is located above the second conveyor belt 2 and is spaced apart from the cutter 3; the anti-blocking mechanism 4 can move along the conveying direction of the first conveyor belt 1; the anti-blocking mechanism 4 has a supporting part for supporting the cigarette pack 8; the supporting part can rotate relative to the guide plate 5.

[0037] The cutter 3 includes a drive mechanism and a cutter body. The drive mechanism consists of a motor and a sprocket or a hydraulic cylinder to drive the cutter body to move up and down reciprocally.

[0038] An anti-blocking mechanism 4 is installed above the guide plate 5, forming a connecting channel 6 for conveying the cigarette pack 8 between the anti-blocking mechanism 4 and the guide plate 5. The anti-blocking mechanism 4 can move along the conveying direction of the first conveyor belt 1, and its supporting part can rotate relative to the guide plate 5. When the cigarette pack 8 passes through the connecting channel 6, the supporting part provides support and obstruction for the cigarette pack 8, effectively limiting the falling speed of the cigarette pack 8 and preventing the cigarette pack 8 from directly hitting the second conveyor belt 2 and breaking; and with Figure 6 Compared with the existing technology, this application can achieve the slow descent effect without extending the length of the guide plate 5, thus avoiding a significant increase in the equipment's footprint.

[0039] The anti-blocking mechanism 4 can move along the conveying direction of the first conveyor belt 1, and the supporting part can rotate relative to the guide plate 5. When the cigarette packs 8 tend to accumulate or become stuck in the connecting channel 6, the anti-blocking mechanism 4 can be driven to move along the conveying direction or the supporting part can be driven to rotate, changing the effective flow cross section of the connecting channel 6 and the stress state of the cigarette packs 8, thereby actively disrupting the stress balance of the accumulated material and allowing the cigarette packs 8 to pass smoothly under the action of gravity. Compared with the shortcomings of the fixed plate structure in the prior art, which can only be manually cleaned by stopping the machine once blocked, this technology achieves active prevention and automatic elimination of blockage in the connecting channel 6.

[0040] The anti-blocking mechanism 4 can move along the conveying direction of the first conveyor belt 1, allowing the width of the connecting channel 6 to be dynamically adjusted according to the size of the cigarette pack 8; the supporting part can rotate relative to the guide plate 5, allowing the obstruction angle and force of the supporting part on the cigarette pack 8 to be adaptively adjusted according to the posture and falling speed of the cigarette pack 8. This adjustable design can adapt to the working conditions of different specifications of cigarette packs 8 and different production rhythms.

[0041] By adding an anti-blocking mechanism 4 to the existing slitting machine, the contradiction between "steep slope impact" and "gentle slope land occupation" in the design of the guide plate 5 and the blockage problem of the connecting channel 6 can be solved simultaneously without large-scale modification of the original equipment. It has good applicability and economic benefits.

[0042] In one embodiment, the anti-blocking mechanism 4 includes a movable component 41 and a rotating component 42. The movable component 41 can move along the conveying direction of the first conveyor belt 1, and the rotating component 42 is fixedly connected to the movable component 41. The supporting part is fixedly installed on the rotating component 42. By setting the anti-blocking mechanism 4 as a combination structure of the movable component 41 and the rotating component 42, the movable component 41 is responsible for the translational adjustment of the overall position, and the rotating component 42 is responsible for the rotational adjustment of the supporting part angle. The functions of the two are decoupled and work together, so that the anti-blocking mechanism 4 has two independent adjustment degrees of freedom, which can realize independent control of the width of the connecting channel 6 and the supporting angle, thereby improving the flexibility and control accuracy of the system.

[0043] In one embodiment, the moving part 41 includes a slide rail 411, a connecting plate 412, and a first drive motor 413; the slide rail 411 is arranged along the conveying direction of the first conveyor belt 1; the connecting plate 412 is slidably connected to the slide rail 411; the first drive motor 413 is fixedly connected to the slide rail 411, and the output end of the first drive motor 413 is connected to the connecting plate 412 via a sprocket.

[0044] Specifically, the slide rail 411 has a slide groove 414, and the connecting plate 412 has a slider 415 that is slidably connected to the slide groove 414. The first drive motor 413 is fixedly mounted on the slide rail 411, and the two ends of the slide groove 414 are rotatably connected to the rotating wheels 416. The output end of the first drive motor 413 is engaged with a closed chain 417, and the chain 417 engages with the two rotating wheels 416 for transmission. The slider 415 is fixedly connected to the chain 417, and the chain 417 can pull the slider 415 to reciprocate within the slide groove 414.

[0045] Through the cooperation of the slide rail 411, the connecting plate 412, and the first drive motor 413, precise movement control of the connecting plate 412 along the conveying direction is achieved. The slide rail 411 ensures smooth movement and guiding accuracy, while the first drive motor 413 provides precisely controllable driving force, making the width adjustment of the connecting channel 6 quantifiable and repeatable, facilitating automated control.

[0046] In one embodiment, the rotating component 42 includes a connecting rod 421, a rotating shaft 422, a support plate 423, and a second drive motor 424. The connecting rod 421 is fixedly connected to the connecting plate 412; the rotating shaft 422 is rotatably connected to the connecting rod 421; the support plate 423 is fixedly connected to the rotating shaft 422; the second drive motor 424 is drively connected to the rotating shaft 422; and the support plate 423 has a support portion. Through the cooperation of the connecting rod 421, the rotating shaft 422, the support plate 423, and the second drive motor 424, precise rotational control of the support portion angle is achieved. The rotating shaft 422, as the rotation center, ensures the smoothness of rotation, and the second drive motor 424 provides a precisely controllable driving torque, allowing the resistance angle and force of the support portion on the tobacco pack 8 to be adaptively adjusted according to the posture and falling speed of the tobacco pack 8.

[0047] At the same time, the rotating support plate 423 can also clear the blockage of the cigarette pack 8 in the connecting channel 6, preventing the cigarette pack 8 from becoming blocked.

[0048] In one embodiment, the second drive motor 424 and the rotating shaft 422 are driven by a sprocket. Power transmission between the second drive motor 424 and the rotating shaft 422 is achieved through sprocket transmission, which offers precise transmission ratios, high load-bearing capacity, long service life, and adaptability to vibration and dust conditions in the slitting machine's working environment.

[0049] Specifically, the output end of the second drive motor 424 can also be connected to the rotating shaft 422 via a belt drive. Belt drive, as an alternative, has the advantages of smooth transmission, low noise, and low cost, and can be flexibly selected according to actual working conditions.

[0050] In one embodiment, the supporting part is L-shaped, and there are two supporting plates 423, which are symmetrically arranged on both sides of the rotating shaft 422. The L-shaped supporting part can effectively catch the falling cigarette pack 8, providing stable support and guidance for the cigarette pack 8. The symmetrical arrangement of the two supporting plates 423 on both sides of the rotating shaft 422 can improve the efficiency of the supporting plates 423 in clearing blockages in the cigarette pack 8.

[0051] In one embodiment, there are two connecting rods 421, which are rotatably connected to both ends of the rotating shaft 422. The two connecting rods 421 are rotatably connected to both ends of the rotating shaft 422, forming a stable double-support structure, which ensures that the rotating shaft 422 will not bend or deform when bearing the impact force of the cigarette pack 8.

[0052] Specifically, there are two slide rails 411, which are arranged on both sides of the connecting plate 412. The arrangement of two slide rails 411 on both sides of the connecting plate 412 ensures that the connecting plate 412 is subjected to balanced force and runs smoothly during movement, avoiding the jamming problem that is prone to occur when only one side of the slide rail 411 is used.

[0053] In one embodiment, the device further includes a processor 7, a first position sensor 71 for detecting that the cutter 3 is at its upper stop point, a second position sensor 72 for detecting that the cigarette pack 8 has reached the second conveyor belt 2, and a vision module 73 for detecting material blockage; the first position sensor 71, the second position sensor 72, the vision module 73, the cutter 3, the first drive motor 413, and the second drive motor 424 are all electrically connected to the processor 7.

[0054] Specifically, the first position sensor 71 is mounted on the upper stop position of the cutter body via an external object to detect the position of the cutter body. The second position sensor 72 is fixed above the second conveyor belt 2 via an external object to detect the cigarette packs 8 sliding off the guide plate 5 onto the second conveyor belt 2. The vision module 73 is fixed above the anti-blocking mechanism 4 via an external object, and the imaging direction of the vision module 73 is pointed towards the connecting channel 6. The vision module 73 is used to detect the material blockage in the connecting channel 6. By setting up the processor 7, the first position sensor 71, the second position sensor 72, and the vision module 73, a complete closed-loop control system is constructed. The first position sensor 71 ensures the safe position of the cutter 3; the second position sensor 72 realizes the detection of the material dropping result; and the vision module 73 realizes real-time monitoring of the material status in the connecting channel 6. The processor 7 automatically makes decisions and controls the action of the actuator based on the signals from each sensor, realizing the automation and intelligence of the anti-blocking control without manual intervention.

[0055] The first position sensor 71 and the second position sensor 72 are both existing photoelectric sensors, and the vision module 73 includes an existing industrial camera. The processor 7 is commercially available.

[0056] In one embodiment, a trigger switch 74 for contacting the cigarette pack 8 is installed on the connecting plate 412, and the trigger switch 74 is electrically connected to the processor 7. By installing the trigger switch 74 on the connecting plate 412, active detection of the cigarette pack 8 arriving at the cutting knife 3 station is achieved. Compared with the indirect detection method that relies solely on the conveyor belt speed and position calculation, the trigger switch 74 directly contacts the cigarette pack 8, resulting in a more accurate and reliable detection signal, a faster response speed, and providing a precise triggering timing for the cutting action of the cutting knife 3.

[0057] Specifically, the trigger switch 74 is an existing push-button switch.

[0058] In one embodiment, such as Figure 7 As shown, another aspect provides a method for preventing material blockage in a slitting machine, comprising the following steps: S1. Based on the information from the trigger switch 74, the cutter 3 is triggered to cut the cigarette pack 8; S2, the movable part 41 moves and adjusts the size of the connecting channel 6; S3, the rotating component 42 rotates to send the cigarette pack 8 into the second conveyor belt 2.

[0059] The cutting process is completed by first triggering the cutter 3, then the size of the connecting channel 6 is adjusted by the moving part 41 to accommodate cigarette packs 8 of different specifications, and finally the cigarette packs 8 are actively fed into the second conveyor belt 2 by the rotating part 42, thus realizing fully automatic material feeding control. This method transforms the original passive and fixed guiding process into an active and adjustable control process, effectively taking into account both the goals of buffering and preventing breakage and preventing blockage and clearing.

[0060] Specifically, the signal triggering logic for trigger switch 74; Trigger switch 74 is mounted on connecting plate 412. When the first conveyor belt 1 transports the cigarette pack 8 to below the cutter 3, the cigarette pack 8 first contacts and presses the trigger switch 74, which then sends a first trigger signal to the processor 7. Upon receiving the first trigger signal, the processor 7 determines that the cigarette pack 8 has reached the position of the cutter 3 and sends a cutting command to the drive mechanism of the cutter 3, driving the cutter body to move downward to complete the cutting action. After the cutting is completed, the cutter body returns to the upper stop point. The first position sensor 71 detects the position of the cutter body in real time. When it detects that the cutter body has reached the upper stop point, it sends a position signal to the processor 7, which confirms that the cutting action has been completed.

[0061] Monitoring and feedback logic for the material feeding process; After cutting, the cigarette pack 8 slides down the guide plate 5 under the influence of gravity. The processor 7 receives the detection signal from the second position sensor 72 in real time. When the second position sensor 72 detects that the cigarette pack 8 has arrived at the second conveyor belt 2 within the preset time window T1 (set to 3 seconds in this embodiment), it determines that the material dropping is normal and the system continues to execute the next cycle; When the second position sensor 72 does not detect the arrival signal of the cigarette pack 8 within the preset time window T1, it is determined that the connection channel 6 may be blocked, and the processor 7 starts the anti-blocking intervention program.

[0062] Simultaneously, the processor 7 continuously receives image data from the connection channel 6 collected by the vision module 73, and uses image analysis algorithms to determine the material accumulation status within the channel. The detection by the vision module 73 serves as an auxiliary discrimination method, enabling the identification of blockage trends before the second position sensor 72 is triggered.

[0063] Proactive prevention and intervention logic; When processor 7 determines that a blockage has occurred or a blockage trend has emerged, the following anti-blockage intervention procedure is executed: Phase 1: Channel Size Adjustment. The processor 7 sends a control signal to the first drive motor 413, driving the connecting plate 412 to move a preset distance along the slide rail 411 in the conveying direction of the first conveyor belt 1, increasing the effective width of the connecting channel 6. During the movement, the processor 7 continuously monitors the channel status through the vision module 73. If the blockage is cleared, movement stops and production resumes; if the blockage is not cleared, the process proceeds to Phase 2.

[0064] Phase Two: Rotation Disturbance of the Support Part. The processor 7 sends a control signal to the second drive motor 424, driving the shaft 422 to rotate the support plate 423 by a preset angle. During the rotation of the support plate 423, the support part disturbs the accumulated tobacco packs 8, disrupting the force balance of the accumulated material, causing the tobacco packs 8 to begin sliding down again under gravity. The processor 7 continuously monitors the material falling status through the vision module 73 and the second position sensor 72. If the blockage is cleared, the support plate 423 is reset and production resumes; if the blockage is not cleared, the operations of Phase One and Phase Two are alternately executed (the number of cycles does not exceed 3) until the blockage is cleared or a shutdown alarm is triggered.

[0065] Phase 3: Fault Alarm. If the blockage is still not resolved after the above anti-blockage intervention procedure has been executed 3 times, the processor 7 determines that a serious blockage has occurred, sends a shutdown command to the equipment control system and issues an audible and visual alarm signal to prompt manual intervention.

[0066] Adaptive adjustment logic; During normal production, the processor 7 dynamically adjusts the position of the anti-blocking mechanism 4 and the angle of the supporting part based on the real-time feedback information of the posture and falling speed of the smoke pack 8 from the vision module 73. When the vision module 73 detects that the cigarette pack 8 is falling too fast, the processor 7 controls the first drive motor 413 to drive the connecting plate 412 to move along the conveying direction, reduce the width of the connecting channel 6, increase the resistance of the supporting part to the cigarette pack 8, and prolong the residence time of the cigarette pack 8 in the connecting channel 6.

[0067] When the vision module 73 detects that the falling speed of the cigarette pack 8 is too slow or that there is a tendency to accumulate, the processor 7 controls the first drive motor 413 to drive the connecting plate 412 to move in the opposite direction of the conveying, increasing the width of the connecting channel 6 and reducing the resistance of the supporting part to the cigarette pack 8; at the same time, it controls the second drive motor 424 to drive the supporting plate 423 to rotate in the opposite direction, reducing the tilt angle of the supporting part and accelerating the passage of the cigarette pack 8 through the connecting channel 6.

[0068] Time-sharing control logic; A safety interlock exists between the cutting action of the cutter 3 and the adjustment action of the anti-blocking mechanism 4. Before controlling the anti-blocking mechanism 4, the processor 7 first confirms that the blade is at its top dead center position via the first position sensor 71, ensuring that the movement and rotation of the anti-blocking mechanism 4 will not mechanically interfere with the blade. Only after the anti-blocking mechanism 4 has completed its action does the processor 7 allow the cutter 3 to begin the next cutting cycle. This time-sharing control logic ensures the safety of equipment operation.

[0069] The above are merely optional embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A material feeding anti-blocking control device for a slitting machine, characterized in that, include: First conveyor belt, second conveyor belt, cutter, anti-blocking mechanism; The cutter is positioned above the discharge end of the first conveyor belt; The feed end of the second conveyor belt is located below the discharge end of the first conveyor belt; a guide plate is fixedly provided between the first conveyor belt and the second conveyor belt; the anti-blocking mechanism and the guide plate are arranged at intervals to form a connecting channel for conveying cigarette packs; The anti-blocking mechanism is located above the second conveyor belt and is spaced apart from the cutter; the anti-blocking mechanism can move along the conveying direction of the first conveyor belt; the anti-blocking mechanism has a supporting part for supporting the cigarette pack; the supporting part can rotate relative to the guide plate.

2. The control device according to claim 1, characterized in that, The anti-blocking mechanism includes a movable component and a rotating component; the movable component can move along the conveying direction of the first conveyor belt, the rotating component is fixedly connected to the movable component, and the supporting part is fixedly installed on the rotating component.

3. The control device according to claim 2, characterized in that, The moving component includes a slide rail, a connecting plate, and a first drive motor; the slide rail is arranged along the conveying direction of the first conveyor belt; the connecting plate is slidably connected to the slide rail; the first drive motor is fixedly connected to the slide rail, and the output end of the first drive motor is driven by the connecting plate through a sprocket.

4. The control device according to claim 3, characterized in that, The rotating component includes a connecting rod, a rotating shaft, a support plate, and a second drive motor; the connecting rod is fixedly connected to the connecting plate; the rotating shaft is rotatably connected to the connecting rod; the support plate is fixedly connected to the rotating shaft; the second drive motor is drively connected to the rotating shaft; and the support plate has the support portion.

5. The control device according to claim 4, characterized in that, The second drive motor is connected to the rotating shaft via a sprocket.

6. The control device according to claim 5, characterized in that, The support part is L-shaped, and there are two support plates, which are symmetrically arranged on both sides of the rotating shaft.

7. The control device according to claim 6, characterized in that, There are two connecting rods, and the two connecting rods are rotatably connected to the two ends of the rotating shaft respectively.

8. The control device according to claim 7, characterized in that, It also includes a processor, a first position sensor for detecting that the cutter is at the top dead center, a second position sensor for detecting that the cigarette pack has reached the second conveyor belt, and a vision module for detecting material blockage; The first position sensor, the second position sensor, the vision module, the cutter, the first drive motor, and the second drive motor are all electrically connected to the processor.

9. The control device according to claim 8, characterized in that, The connecting plate is equipped with a trigger switch for contacting the cigarette pack, and the trigger switch is electrically connected to the processor.

10. A method for preventing material blockage in a slitting machine, implemented based on the control device of claim 9, characterized in that, Includes the following steps: S1. Based on the information from the trigger switch, trigger the cutter to cut the cigarette pack; S2. Adjust the size of the connecting channel by moving the movable component; S3. The rotating component rotates to feed the cigarette packs into the second conveyor belt.

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