A defective cigarette plugging guard plate separation device and its control method

Abstract

The present invention relates to the technical field of cigarette recycling equipment, and discloses a defective cigarette plugging guard plate separation device and its control method. The base is installed on the frame at the bottom of the drum, a moving module connected to the driving motor is installed on the base, a top sliding seat is installed on the moving module, a bracket is installed on the top sliding seat, and an arc-shaped guard plate for cooperating with the drum is installed on the bracket. The moving module is used to drive the bracket and the arc-shaped guard plate to move after being driven by the driving motor, and the top sliding seat plays a bearing role for the bracket during the moving process. In the present invention, the arc-shaped guard plate is fixed on the moving module through the bracket, so that the arc-shaped guard plate can move left and right following the moving module, thereby realizing the separation and approach of the arc-shaped guard plate to the drum. After separation, most of the cigarettes congested on the right side of the drum can fall off. After the processing is completed, the driving motor can drive the arc-shaped guard plate back to the working position. Utilizing the characteristic of no backlash of the screw ball mechanism, the working position can be accurately positioned.

Description

Technical Field

[0001] The present invention relates to the technical field of cigarette recycling equipment, and particularly relates to a defective cigarette plugging guard plate separation device and a control method thereof. Background Art

[0002] During the production process of cigarettes, a certain number of defective cigarettes will inevitably be produced. The defective cigarettes need to be transported to the waste cigarette treatment line for centralized treatment, where the tobacco, filter tips, and cigarette paper are thoroughly separated, and the recycled tobacco is reused. Currently, the defective cigarettes are transported to the cutting device through a drum device for cutting treatment. However, during this process, due to the differences between the recycled cigarettes and the qualified cigarettes in normal production, there are often problems such as wrinkles and bends in appearance, which easily lead to cigarette congestion when being transmitted on the drum, resulting in the shutdown of the device. After the shutdown, it is necessary to disassemble the guard plate on the side of the drum to handle the blocked cigarettes. The whole process is cumbersome and time-consuming, reducing the production efficiency. Summary of the Invention

[0003] To solve the above technical problems, the present invention provides a defective cigarette plugging guard plate separation device and a control method thereof.

[0004] The technical solution adopted by the present invention is as follows:

[0005] On the one hand, a defective cigarette plugging guard plate separation device is provided, which is applied to a drum device for transporting defective cigarettes. The drum device includes a drum and an arc-shaped guard plate on its side. The defective cigarette plugging guard plate separation device includes a base, a driving motor, a moving module, a top slide, and a bracket. The base is fixed on the drum device; the moving module is installed in the base, and the moving module includes a bottom slide; the driving motor is fixed on the base and can drive the bottom slide to move back and forth in the base; the top slide is connected to the bottom slide, and the top slide is connected to the arc-shaped guard plate through the bracket;

[0006] The bottom slide can drive the arc-shaped guard plate to move, so as to realize the separation and approach of the arc-shaped guard plate relative to the drum.

[0007] Further, the base has an installation cavity with an open top. On the left and right side walls of the installation cavity, chutes are symmetrically provided, and a slide rail is arranged below the chutes; on the left and right sides of the bottom slide, upper and lower bosses are provided. The upper bosses are in sliding fit with the chutes, and the lower bosses are in sliding fit with the slide rails.

[0008] Further, convex rails are also provided on the left and right side walls in the installation cavity, and the convex rails are located above the sliding grooves; shaft rods are respectively rotatably connected to the front and rear ends of the top sliding seat, rolling rings are sleeved on the shaft rods, the rolling rings correspond to the convex rails in position, and the rolling rings are always carried on the convex rails during the rolling movement.

[0009] Further, the guard plate separating device further includes an elastic steel sheet, the front and rear ends of the elastic steel sheet are fixed on the base and close the top opening of the installation cavity; the top sliding seat includes a sliding seat body, fork arms are respectively provided at the front and rear ends of the sliding seat body, the shaft rods are connected to the fork arms, and a steel sheet through hole is formed between the shaft rods and the sliding seat body;

[0010] The elastic steel sheet passes through the steel sheet through holes at both ends of the top sliding seat, the two shaft rods are located above the elastic steel sheet, and the sliding seat body is located below the elastic steel sheet; the length between the fixed positions of the front and rear ends of the elastic steel sheet is greater than the distance between the corresponding front and rear fixed points on the base, so that the elastic steel sheet between the two shaft rods is elastically deformed to form an upward arc-shaped protrusion, thereby increasing the moving resistance of the top sliding seat.

[0011] Further, a plurality of pins are provided on the bottom surface of the top sliding seat, and a plurality of pin holes are correspondingly provided on the top surface of the bottom sliding seat, and the pins are inserted into the corresponding pin holes.

[0012] Further, the moving module further includes a ball screw, a ball nut is fitted and sleeved on the ball screw to form a screw-nut pair; the ball nut is fixedly connected to the bottom sliding seat, and one end of the ball screw is in transmission connection with the driving motor.

[0013] Further, the bracket is fixedly connected to the acceleration and direction-changing device of the drum device, so that the acceleration and direction-changing device can move synchronously with the arc-shaped guard plate.

[0014] Further, the base is installed on the frame at the bottom of the drum device.

[0015] Further, the guard plate separating device further includes a PLC controller, a thermal relay, a contactor and a relay. The PLC controller is electrically connected to the thermal relay and the relay respectively. The thermal relay is electrically connected to the contactor and the drum motor driving the drum to rotate respectively; the relay is electrically connected to the driving motor; the contactor is connected to the main circuit of the drum device.

[0016] On the other hand, a guard plate separation control method is provided for controlling the above-mentioned defective cigarette plugging guard plate separation device;

[0017] When a cigarette rod jam occurs between the drum and the arc-shaped guard plate, the drum motor operates overloaded, the thermal relay disconnects the drum motor circuit, and at the same time the relay loses power and the main circuit disconnects, and the drum stops rotating;

[0018] After the PLC controller receives the disconnection signal of the thermal relay, it sends a start signal to the relay. After receiving this start signal, the relay controls the drive motor to start, so that the arc-shaped guard plate moves away from the drum, and at the same time the PLC controller starts timing;

[0019] After the timing reaches the preset time, the PLC controller controls the arc-shaped guard plate to reset through the relay, and then controls the drum device to restart through the thermal relay.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] The defective cigarette rod jam guard plate separation device of the present invention fixes the arc-shaped guard plate on the moving module through a bracket, so that the arc-shaped guard plate can move back and forth with the moving module, thereby realizing the separation and approach of the arc-shaped guard plate to the drum. After separation, most of the congested cigarette rods on the right side of the drum can fall off. After the processing is completed, the drive motor can drive the arc-shaped guard plate back to the working position. Utilizing the non-backlash characteristic of the screw ball mechanism, the working position can be accurately positioned. At the same time, the entire device can be automatically controlled by a PLC controller. The whole process is simple and convenient to operate, shortening the time for troubleshooting and improving the production efficiency of processing defective cigarette rods. In addition, by setting the top sliding seat, the bearing points of the arc-shaped guard plate and the bracket fall on the top sliding seat, and the moving module itself has no bearing pressure and will not generate load on its own operation, ensuring the use effect and service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 Shows a three-dimensional structural schematic diagram of the guard plate separation device according to an embodiment of the present invention installed on a drum device;

[0024] Figure 2 Shows an exploded view of the guard plate separation device according to an embodiment of the present invention;

[0025] Figure 3 Shows an exploded view of the moving module according to an embodiment of the present invention;

[0026] Figure 4 Shows a schematic structural view of the base of an embodiment of the present invention;

[0027] Figure 5 Shows a schematic structural view of the top sliding seat of an embodiment of the present invention;

[0028] Figure 6 Shows a schematic installation view of the steel plate and the top sliding seat of an embodiment of the present invention;

[0029] Figure 7 Shows a front view structural schematic of the guard plate separation device installed on the drum device according to an embodiment of the present invention;

[0030] Figure 8 Shows a side view structural schematic of the guard plate separation device installed on the drum device according to an embodiment of the present invention;

[0031] Figure 9 Shows a control schematic diagram of the guard plate separation device according to an embodiment of the present invention.

[0032] Reference numerals:

[0033] 1 - Device body, 2 - Base, 201 - Chute, 202 - Slide rail, 203 - Convex rail, 3 - Driving motor, 301 - Motor base, 302 - Motor rotating shaft, 4 - Moving module, 401 - Front support, 402 - Coupling, 403 - Bearing seat, 404 - Bearing gland, 405 - Bearing, 406 - Limit block, 407 - Bottom sliding seat, 408 - Ball nut, 409 - Nut gland, 410 - Ball screw, 411 - Rear support, 412 - Cover plate, 5 - Elastic steel sheet, 6 - Top sliding seat, 601 - Plug pin, 602 - Shaft rod, 603 - Rolling ring, 7 - Top cover, 8 - Support seat, 9 - Connecting plate, 10 - Acceleration and direction change device, 1001 - Arc-shaped guard plate, 11 - Drum, 12 - Drum motor, 1201 - Transmission mechanism, 13 - Thermal relay, 14 - Contactor, 15 - Relay, 16 - PLC controller. Detailed implementation manners

[0034] The following further describes in more detail the above-mentioned and other technical features and advantages of the present invention with reference to the accompanying drawings.

[0035] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0036] In addition, unless otherwise clearly specified and defined, terms such as "installed", "connected", "joined", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal height than the second feature.

[0038] As Figure 1 、 Figure 7 、 Figure 8 As shown, the device body 1 of the guard plate separation device of the present invention is installed on the drum device for conveying defective cigarettes. The drum device includes a drum 11, an arc-shaped guard plate 1001 on its side, and an acceleration and direction-changing device 10. A drum motor 12 is connected to the drum 11 through a transmission mechanism 1201.

[0039] As Figures 1 to 3 As shown, in this embodiment, the guard plate separation device includes a base 2, a driving motor 3, a moving module 4, a top slide 6, and a bracket. The base 2 is fixed on the drum device. The moving module 4 is installed in the base 2. The moving module 4 includes a bottom slide 407. The driving motor 3 is fixed on the base 2 and can drive the bottom slide 407 to move back and forth in the base 2. The top slide 6 is connected to the bottom slide 407, and the top slide 6 is connected to the arc-shaped guard plate 1001 through a bracket. The bottom slide 407 can drive the arc-shaped guard plate 1001 to move, so as to realize the separation and approach of the arc-shaped guard plate 1001 relative to the drum 11. Preferably, the base 2 is installed on the frame at the bottom of the drum device. The arc-shaped guard plate 1001 is fixed on the moving module 4 through a bracket, so that the arc-shaped guard plate 1001 can move back and forth following the moving module 4, thereby realizing the separation and approach of the arc-shaped guard plate 1001 to the drum 11. After separation, most of the cigarettes congested on the rear side of the drum 11 can fall off. Then, the driving motor 3 drives the arc-shaped guard plate 1001 back to the working position, shortening the time for troubleshooting and improving the production efficiency of processing defective cigarettes.

[0040] Specifically, as Figures 2 to 4 shown, the base 2 has an installation cavity with an open top. On the left and right side walls of the installation cavity, sliding grooves 201 are symmetrically provided, and a sliding rail 202 is arranged below the sliding grooves 201. On the left and right sides of the bottom sliding seat 407, upper and lower bosses are provided. The upper boss is in sliding fit with the sliding groove 201, and the lower boss is in sliding fit with the sliding rail 202. The sliding grooves 201 and the sliding rail 202 are respectively used to cooperate with different components on the bottom sliding seat 407 to move, ensuring a smooth and stable movement effect.

[0041] As Figure 4 、 Figure 5 shown, on the left and right side walls of the installation cavity, a convex rail 203 is further provided. The convex rail 203 is located above the sliding groove 201. The front and rear ends of the top sliding seat 6 are respectively rotatably connected with a shaft rod 602. A rolling ring 603 is sleeved on the shaft rod 602. The rolling ring 603 corresponds to the convex rail 203 in position. The rolling ring 603 is always carried on the convex rail 203 during the rolling movement process, ensuring smooth movement and stable load sharing.

[0042] In one embodiment, as Figure 5 、 Figure 6 shown, an elastic steel sheet 5 is installed on the base 2. The front and rear ends of the elastic steel sheet 5 are fixed on the base 2 and close the top opening of the installation cavity. The top sliding seat 6 includes a sliding seat body 605. Fork arms are respectively provided at the front and rear ends of the sliding seat body 605. The shaft rod 602 is connected to the fork arms. A steel sheet through hole 604 is formed between the shaft rod 602 and the sliding seat body 605. The elastic steel sheet 5 passes through the steel sheet through holes 604 at both ends of the top sliding seat 6. The two shaft rods 602 are located above the elastic steel sheet 5, and the sliding seat body 605 is located below the elastic steel sheet 5. The length between the fixed positions of the front and rear ends of the elastic steel sheet 5 is greater than the distance between the corresponding front and rear fixed points on the base 2, so that the elastic steel sheet 5 between the two shaft rods 602 elastically deforms to form an upward arc-shaped protrusion, acting as a damper to increase the moving resistance of the top sliding seat 6 and make it run smoothly.

[0043] In a more specific embodiment, as Figure 2 、 Figure 3As shown, the moving module 4 includes a ball screw 410, a front support 401, a rear support 411, a bottom slide 407, and a ball nut 408. The ball screw 410 is installed inside the base 2 through the left front support 401 and the rear support 411. The ball screw 410 is connected to the driving motor 3 for driving. The bottom slide 407 is slidably connected inside the base 2, and a ball nut 408 threadedly connected to the ball screw 410 is installed on the bottom slide 407. Specifically, the main body of the moving module 4 is placed in the chute 201. There is a groove on the rear side of the moving module 4 for placing the ball nut 408. The ball nut 408 is fixed to the main body of the moving module 4 through a nut gland 409. The ball nut 408 is in mating connection with the ball screw 410. Front supports 401 and rear supports 411 are respectively arranged on the front and rear sides inside the base 2. A bearing seat 403 is arranged on the rear side of the front support 401. A bearing 405 is placed inside the bearing seat 403. The bearing 405 is fixed through a bearing gland 404. Similarly, a bearing seat 403, a bearing 405, and a bearing gland 404 are arranged on the front side of the rear support 411. The ball screw 410 passes through the bearing 405. The front side of the ball screw 410 is connected to the rotating shaft of the driving motor 3 through a coupling 402. Limiting blocks 406 are provided on the front side of the bottom slide 407 and the front side of the rear support 411. Exemplarily, the driving motor 3 is a Siemens 24V DC servo driving motor with the number LMH / P92879455503.

[0044] In a more specific embodiment, as Figure 2 , Figure 4 , Figure 5 , Figure 6 shown, a top slide 6 is detachably installed on the moving module 4. A plurality of pins 601 are provided on the bottom surface of the slide body 605. Corresponding pin holes are provided on the top surface of the bottom slide 407. The pins 601 are inserted into the corresponding pin holes. Shaft rods 602 are symmetrically installed along the front and rear on the slide body 605. Rubber rolling rings 603 that move on the convex rail 203 are sleeved on the shaft rods 602. The slide body 605 moves on the sealing steel sheet 5 through the rolling rings 603. A top cover 7 is installed on the slide body 605. Specifically, the top slide 6 is connected to the top end of the main body of the moving module 4 through the pins 601. The front and rear sides of the elastic steel sheet 5 are fixed to both sides of the base 2 through cover plates 412. The elastic steel sheet 5 covers the top opening of the base 2. The top end of the top slide 6 is connected to the top cover 7 through screws. The top cover 7 has front and rear openings and covers the entire top slide 6. The top slide 6 is connected to the support seat 8 through screws. The support seat 8 is integrally formed with the acceleration and direction-changing device 10. The side of the acceleration and direction-changing device 10 is connected to the arc-shaped guard plate 1001 through a connecting plate 9.

[0045] In one embodiment, referring to Figure 7 , Figure 8, when the cigarette rod is blocked between the drum 11 and the guard plate, the driving motor drives the ball screw 410 to rotate clockwise. The rotation of the ball screw 410 drives the ball nut 408 to move horizontally to the right. The ball nut 408 drives the moving module 4 to move horizontally to the right. The arc-shaped guard plate 1001 follows the movement and separates from the drum 11. The separation distance stops moving until the right side of the moving module 4 touches the limit block 406. Then it is convenient for manual cleaning of the congested cigarette rods on the drum 11. After the cleaning is completed, the driving motor is controlled to rotate counterclockwise, and the arc-shaped guard plate 1001 moves horizontally to the left. When the limit block 406 on the left side of the moving module 4 touches the left support 401, it stops moving, and the arc-shaped guard plate 1001 accurately returns to the working position again. At the same time, the moving stroke of the main body of the moving module 4 can be set by changing the stroke of the driving motor. The acceleration and direction-changing device 10 is installed on this device and can follow the movement, so as to expand enough space to handle the blocked cigarette rods according to different moving mechanisms.

[0046] In another embodiment, as Figure 9 shown, the guard plate separation device further includes a PLC controller 16, a thermal relay 13, a contactor 14, and a relay 15. The PLC controller 16 is electrically connected to the thermal relay 13 and the relay 15 respectively. The thermal relay 13 is electrically connected to the contactor 14 and the drum motor 12 that drives the drum 11 to rotate respectively. The relay 15 is electrically connected to the driving motor 3. The contactor 14 is connected to the main circuit of the drum device. The PLC controller 16 is used to control the start, stop, and operation of the drum 11 and the moving module 44.

[0047] Specifically, the PLC controller 16 is connected to the display. The PLC controller is used to collect signals to indirectly read and control the operating states of the drum motor 12 and the driving motor. The thermal relay 13 is used to receive the switch signal sent by the PLC controller 16 and disconnect the connection circuit of the drum motor 12 when the drum motor 12 is overloaded. The contactor 14 is connected between the thermal relay 13 and the drum motor 12. The contactor 14 is used to control and protect the drum motor 12. When the thermal relay 13 disconnects the circuit, the contactor 14 loses power, and the drum motor 12 loses power and stops running. The relay 15 is used to receive the switch signal sent by the PLC controller and control the start and stop of the driving motor through the on-off of the circuit.

[0048] During this process, the drum motor 12 is connected to the drum 11 through the transmission mechanism 1201. When the equipment is running, when the cigarettes are blocked between the drum 11 and the guard plate, the drum motor 12 runs overloaded, the thermal relay 13 controls the disconnection of the circuit of the drum motor 12, the contactor 14 loses power and the main circuit is disconnected, the drum 11 stops rotating. After receiving the signal, the PLC controller sends a signal to control the relay 15 to control the opening of the drive motor circuit, and the moving module 4 drives the guard plate and the drum 11 to separate. Most of the blocked cigarettes fall under the action of gravity. After restarting the machine, the moving module 4 resets, and the drum 11 starts to work after 3 seconds.

[0049] The above are only the preferred embodiments of the present invention, which are illustrative rather than restrictive to the present invention. The structures and connection methods of the various components in the present invention can all be changed. Any equivalent transformation and improvement made on the basis of the technical solution of the present invention should not be excluded from the protection scope of the present invention.

Claims

1. A defective cigarette plugging guard plate separation device is applied to a drum device for conveying defective cigarettes. The drum device includes a drum (11) and an arc-shaped guard plate (1001) on its side. It is characterized in that, The defective cigarette plugging guard plate separating device includes a base (2), a driving motor (3), a moving module (4), a top slide (6), an elastic steel sheet (5) and a bracket; the base (2) is fixed on the drum device; the moving module (4) is installed in the base (2), and the moving module (4) includes a bottom slide (407); the driving motor (3) is fixed on the base (2) and can drive the bottom slide (407) to move back and forth in the base (2); the top slide (6) is connected to the bottom slide (407), and the top slide (6) is connected to the arc-shaped guard plate (1001) through a bracket; The bottom slide (407) can drive the arc-shaped guard plate (1001) to move, so as to realize the separation and approach of the arc-shaped guard plate (1001) relative to the drum (11); The base (2) has an installation cavity with an open top. Shaft rods (602) are respectively rotatably connected to the front and rear ends of the top slide (6). The front and rear ends of the elastic steel sheet (5) are fixed on the base (2) and close the top opening of the installation cavity; the top slide (6) includes a slide body (605), and a steel sheet passing opening (604) is formed between the shaft rod (602) and the slide body (605); the elastic steel sheet (5) passes through the steel sheet passing openings (604) at both ends of the top slide (6). The two shaft rods (602) are located above the elastic steel sheet (5), and the slide body (605) is located below the elastic steel sheet (5); the length between the fixed positions of the front and rear ends of the elastic steel sheet (5) is greater than the distance between the corresponding front and rear fixed points on the base (2), so that the elastic steel sheet (5) between the two shaft rods (602) elastically deforms to form an upward arc-shaped protrusion, thereby increasing the moving resistance of the top slide (6).

2. The defective cigarette plugging guard separation device according to claim 1, wherein, Chute grooves (201) are symmetrically arranged on the left and right side walls in the installation cavity, and a slide rail (202) is arranged below the chute grooves (201); upper and lower protrusions are arranged on both the left and right sides of the bottom slide (407). The upper protrusions are slidably matched with the chute grooves (201), and the lower protrusions are slidably matched with the slide rail (202).

3. The defective cigarette plugging guard plate separation device according to claim 2, characterized in that, Convex rails (203) are also arranged on the left and right side walls in the installation cavity, and the convex rails (203) are located above the chute grooves (201); a rolling ring (603) is sleeved on the shaft rod (602), and the rolling ring (603) corresponds to the convex rails (203) in position, and the rolling ring (603) is always carried on the convex rails (203) during the rolling movement process.

4. A defective cigarette plugging guard plate separation device according to claim 1, characterized in that, A plurality of pins (601) are arranged on the bottom surface of the top slide (6), and a plurality of pin holes are correspondingly arranged on the top surface of the bottom slide (407), and the pins (601) are inserted into the corresponding pin holes.

5. The defective cigarette plugging guard plate separation device according to claim 1, characterized in that, The moving module (4) further includes a ball screw (410), on which a ball nut (408) is sleeved in a matching manner to form a ball screw and nut pair; the ball nut (408) is fixedly connected to the bottom slide block (407), and one end of the ball screw (410) is in transmission connection with the driving motor (3).

6. The defective cigarette plugging guard plate separation device according to claim 1, wherein, The bracket is fixedly connected to the acceleration and direction-changing device (10) of the drum device, so that the acceleration and direction-changing device (10) can move synchronously with the arc-shaped guard plate (1001).

7. The defective cigarette plugging guard plate separation device according to claim 1, characterized in that, The base (2) is installed on the frame at the bottom of the drum device.

8. The defective cigarette plugging guard plate separating device according to claim 1, wherein, It further includes a PLC controller (16), a thermal relay (13), a contactor (14) and a relay (15). The PLC controller (16) is electrically connected to the thermal relay (13) and the relay (15) respectively. The thermal relay (13) is electrically connected to the contactor (14) and the drum motor (12) that drives the drum (11) to rotate respectively; the relay (15) is electrically connected to the driving motor (3); the contactor (14) is connected to the main circuit of the drum device.

9. A control method for separating a guard plate, characterized in that, For controlling the defective cigarette plugging guard plate separating device as claimed in claim 8; When a cigarette is blocked between the drum (11) and the arc-shaped guard plate (1001), the drum motor (12) operates overloaded, the thermal relay (13) disconnects the drum motor circuit, and at the same time the relay (15) loses power and the main circuit is disconnected, and the drum (11) stops rotating; After receiving the disconnection signal of the thermal relay (13), the PLC controller (16) sends a start signal to the relay (15). After receiving this start signal, the relay (15) controls the driving motor (3) to start, so that the arc-shaped guard plate (1001) moves away from the drum (11), and at the same time the PLC controller (16) starts timing; After the timing reaches the preset time, the PLC controller (16) controls the arc-shaped guard plate (1001) to reset through the relay (15), and then controls the drum device to restart through the thermal relay (13).

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