Cigarette feeding device and control method thereof

Abstract

The invention provides a cigarette feeding device which comprises N cigarette discharging channels, N cigarette pushing mechanisms, a mold box conveying mechanism and a controller, N is a positive integer larger than or equal to 2, and a first detector is arranged at the preset depth of each cigarette discharging channel; the cigarette pushing mechanism comprises a cigarette pushing motor and a single-degree-of-freedom movement assembly, a cigarette pushing row is arranged at the top of the single-degree-of-freedom movement assembly, and the cigarette pushing motor drives the single-degree-of-freedom movement assembly to move and drives the cigarette pushing row to do linear reciprocating motion; the mold box conveying mechanism comprises a driving motor, a conveying belt driven by the driving motor to rotate and a plurality of mold boxes arranged on the periphery of the conveying belt at intervals. The controller is electrically connected with the driving motor and the N cigarette pushing motors and is in communication connection with the first detector. The invention further provides a control method of the cigarette feeding device. The device has the beneficial effects that the electronic cam curves of all the mechanisms are switched through the controller, and the work of cleaning the lower flue or removing faults is completed under the condition that the machine is not stopped.

Description

Technical Field

[0001] The present invention relates to the technical field of tobacco packaging, and in particular to a cigarette feeding device and a control method thereof. Background Art

[0002] The existing cigarette feeding device includes a cigarette warehouse, a lower flue arranged in the cigarette warehouse, a cigarette pushing mechanism arranged corresponding to the lower flue, and a mold box conveying mechanism, wherein the mold box conveying mechanism includes a conveyor belt and a plurality of mold boxes arranged on the conveyor belt. After the cigarettes in the cigarette warehouse fall from the lower flue, a cigarette group is formed, and the cigarette group is pushed into the cigarette box by the cigarette pushing row in the cigarette pushing mechanism. Then, the cigarette box containing the cigarette group is pushed into the mold box, and the mold box moves with the conveyor belt to convey the cigarette box to the downstream packaging station. Among them, the cigarette pushing movement of the cigarette pushing mechanism and the movement of the mold box are both intermittent movements, and the cigarette pushing mechanism and the mold box conveying mechanism share a power source. If part of the lower flue is blocked, the cigarette pushing mechanism needs to stop working in order to clean the flue, and the machine can only be shut down for processing and then restarted for production, which undoubtedly greatly reduces the production efficiency. Summary of the invention

[0003] In view of the above-mentioned defects, the object of the present invention is to provide a cigarette feeding device which can handle the blockage of the lower flue or the failure of the cigarette pushing mechanism without stopping the machine.

[0004] The present invention provides a cigarette feeding device, comprising N lower smoke ducts for falling cigarettes, N cigarette pushing mechanisms, a mold box conveying mechanism and a controller, N is a positive integer greater than or equal to 2, a first detector is provided at a predetermined depth of the lower smoke duct, for detecting whether cigarette blockage occurs in the lower smoke duct; the N cigarette pushing mechanisms and the N lower smoke ducts are arranged in a one-to-one correspondence, the cigarette pushing mechanism comprises a cigarette pushing motor and a single-degree-of-freedom motion component, a cigarette pushing row is provided on the top of the single-degree-of-freedom motion component, the cigarette pushing motor drives the single-degree-of-freedom motion component to move, drives the cigarette pushing row to perform linear reciprocating motion, and pushes the cigarette group located at the bottom of the lower smoke duct; the mold box conveying mechanism comprises a driving motor, a conveyor belt rotating under the drive of the driving motor, and a plurality of mold boxes spaced apart on the outer periphery of the conveyor belt, the mold boxes are used to receive the cigarette group; the controller is electrically connected to the driving motor and the N cigarette pushing motors, respectively, and is communicatively connected to the first detector.

[0005] Preferably, it further comprises a second detector arranged near the conveyor belt for detecting whether there are any missing cigarettes in the mold box; and the controller is communicatively connected with the second detector.

[0006] Preferably, the single-degree-of-freedom motion component includes a mounting bracket, a drive shaft, a first passive shaft, a second passive shaft, a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod and a fifth connecting rod. The drive shaft is hinged in the mounting bracket, one end of which is connected to the smoke pushing motor, and a swing arm is provided on it. The lower end of the swing arm is hinged to the first connecting rod, and the upper end of the swing arm is hinged to the second connecting rod. The first connecting rod and the second connecting rod are hinged through the third connecting rod, and the smoke pushing row is arranged on the top of the third connecting rod; the first passive shaft is hinged in the mounting bracket, one end of the fourth connecting rod is hinged to the first passive shaft, and the other end is hinged to the first connecting rod; the second passive shaft is hinged in the mounting bracket, one end of the fifth connecting rod is hinged to the second passive shaft, and the other end is hinged to the second connecting rod.

[0007] Preferably, the cigarette pushing motor is an AC servo motor.

[0008] The present invention also provides a control method for the aforementioned cigarette feeding device, comprising the following steps:

[0009] According to the demand for pushing cigarettes, the electronic cam curves of the driving motor and the N cigarette pushing motors are respectively set, and the controller controls the driving motor and the N cigarette pushing motors to operate according to their corresponding electronic cam curves, so that the mold box conveying mechanism and the N cigarette pushing mechanisms perform intermittent movements with coordinated rhythms, ensuring that each mold box is filled with a group of cigarettes;

[0010] When the first detector detects that a lower smoke duct is clogged with cigarettes or a cigarette pushing mechanism fails, the controller controls the corresponding cigarette pushing motor to stop working, and switches the electronic cam curves of the cigarette pushing motors in the remaining N-1 cigarette pushing mechanisms, changes the rhythm of cigarette pushing, and completes the cleaning of the clogged lower smoke duct or clearing of the fault without stopping the machine, and ensures that each mold box is filled with a cigarette group.

[0011] The benefit of the present invention lies in that the smoke pushing mechanism and the mold box conveying mechanism are each driven by an independent motor. By switching the electronic cam curves of each mechanism through the controller, the lower flue cleaning or troubleshooting work can be completed without stopping the machine, reducing the losses caused by shutdown and greatly improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The three-dimensional cigarette feeding device of the present invention Figure 1 ;

[0013] Figure 2 The three-dimensional cigarette feeding device of the present invention Figure 2 ;

[0014] Figure 3 For the three-dimensional push smoke mechanism Figure 1 ;

[0015] Figure 4 The three-dimensional view of the smoke pushing mechanism after removing the mounting bracket Figure 2 ;

[0016] Figure 5 A schematic diagram of the switching of the electronic cam curves of the motors in the first smoke pushing mechanism, the second smoke pushing mechanism and the third smoke pushing mechanism when the first lower smoke duct is blocked or the first smoke exhaust mechanism fails;

[0017] Figure 6 A schematic diagram of the switching of the electronic cam curves of the motors in the first smoke pushing mechanism, the second smoke pushing mechanism and the third smoke pushing mechanism when the second lower smoke duct is blocked / the second smoke exhaust mechanism fails;

[0018] Figure 7 It is a schematic diagram of the switching of the electronic cam curves of the motors in the first smoke pushing mechanism, the second smoke pushing mechanism and the third smoke pushing mechanism when the third lower smoke duct is blocked / the third smoke exhaust mechanism fails.

[0019] Component number description:

[0020] 1 Tobacco Warehouse

[0021] 2 Downstream flue

[0022] 21 First lower flue

[0023] 22 Second lower flue

[0024] 23 The third lower flue

[0025] 3. Smoke push mechanism

[0026] 301 Smoke exhaust

[0027] 302 Smoke Pushing Motor

[0028] 303 Mounting Bracket

[0029] 304 Swing Arm

[0030] 305 First connecting rod

[0031] 306 Second connecting rod

[0032] 307 Third connecting rod

[0033] 308 Fourth connecting rod

[0034] 309 Fifth Link

[0035] 310 Drive shaft

[0036] 311 First passive axis

[0037] 312 Second passive axis

[0038] 31 First Cigarette Pushing Agency

[0039] 32 Second cigarette push mechanism

[0040] 33 The Third Cigarette Pushing Agency

[0041] 4. Mold box conveying mechanism

[0042] 41 mold box

[0043] 42 Drive Motor

[0044] 43 Conveyor belt

[0045] 5. First Detector

[0046] 6 Second detector DETAILED DESCRIPTION

[0047] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. These embodiments are only used to illustrate the present invention, but not to limit the present invention.

[0048] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, 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 therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0049] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] Figure 2 The figure shows a three-dimensional view of the cigarette feeding device of the present invention. Figure 2 In the following description, Figure 2 The attached figure in the figure is used as a reference for the direction. Figure 2In the figure, the extension direction of the conveyor belt 43 is defined as the left-right direction, and the second detector 6 is located on the left side of the lower flue 2; the extension direction of the lower flue 2 is defined as the up-down direction, and the smoke pushing exhaust 301 is located below the lower flue 2; the extension direction of the smoke pushing exhaust 301 is defined as the front-back direction, and the lower flue 2 is located on the front side of the smoke pushing mechanism 3.

[0051] like Figure 1 and Figure 2 As shown, the present invention provides a cigarette feeding device, which includes a cigarette storage 1, N lower flues 2 for cigarettes to fall into the cigarette storage 1 and divided by a plurality of partitions, a first detector 5 arranged at a predetermined depth of the lower flue 2, N cigarette pushing mechanisms 3, a mold box conveying mechanism 4 and a controller, wherein N is a positive integer greater than or equal to 2.

[0052] The first detector 5 is used to detect whether there is a cigarette blockage in the lower flue 2. Specifically, the first detector 5 is a non-contact photoelectric sensor, which can avoid damaging the cigarette. When the light emitted by the transmitter in the first detector 5 can be received by the receiver, it can be known that the lower flue 2 is unobstructed; on the contrary, when the light emitted by the transmitter in the first detector 5 is blocked for a long time, it can be known that there is a blockage in the lower flue 2.

[0053] N cigarette pushing mechanisms 3 and N lower flues 2 are arranged in one-to-one correspondence, and the N lower flues 2 are sequentially distributed in the left-right direction, and the distribution direction of the N cigarette pushing mechanisms 3 is parallel to the distribution direction of the N lower flues 2. Each cigarette pushing mechanism 3 includes a cigarette pushing motor 302 and a single-degree-of-freedom motion component, and a cigarette pushing row 301 is provided on the top of the single-degree-of-freedom motion component. The cigarette pushing motor 302 drives the single-degree-of-freedom motion component to move, driving the cigarette pushing row 301 to perform linear reciprocating motion in the front-back direction, and pushing the cigarette group located at the bottom of the lower flue 2. The cigarette pushing motor 302 is preferably an AC servo motor.

[0054] The single degree of freedom motion assembly has many forms, which can be a cam-link assembly or a Figure 3-4The multi-link assembly shown. The multi-link assembly includes a mounting bracket 303, a drive shaft 310, a first passive shaft 311, a second passive shaft 312, a first connecting rod 305, a second connecting rod 306, a third connecting rod 307, a fourth connecting rod 308 and a fifth connecting rod 309. The mounting bracket 303 is fixedly arranged along the front-to-back direction, wherein the second passive shaft 312, the drive shaft 310 and the first passive shaft 311 are hinged in sequence from front to back. One end of the drive shaft 310 is connected to the smoke pushing motor 302, and it rotates under the drive of the smoke pushing motor 302. A swing arm 304 is also provided on the drive shaft 310, the lower end of the swing arm 304 is hinged to the first connecting rod 305, the upper end of the swing arm 304 is hinged to the second connecting rod 306, the first connecting rod 305 and the second connecting rod 306 are hinged through the third connecting rod 307, and the smoke pushing row 301 is arranged on the top of the third connecting rod 307. One end of the fourth connecting rod 308 is hinged to the first passive shaft 311 , and the other end is hinged to the middle of the first connecting rod 305 ; one end of the fifth connecting rod 309 is hinged to the second passive shaft 312 , and the other end is hinged to the second connecting rod 306 .

[0055] like Figure 1 and Figure 2 As shown, the mold box conveying mechanism 4 includes a driving motor 42, a conveyor belt 43 that rotates under the drive of the driving motor 42, and a plurality of mold boxes 41 that are arranged at intervals on the periphery of the conveyor belt 43, and the mold boxes 41 are used to receive cigarette groups. Specifically, the extending direction of the conveyor belt 43 is parallel to the distribution direction of the N lower flues 2 (i.e., the left-right direction), and is arranged between the driving wheel and the driven wheel. The driving motor 42 drives the driving wheel to rotate, thereby driving the conveyor belt 43 to rotate, and the mold boxes 41 located on the conveyor belt 43 are translated along the left-right direction.

[0056] Preferably, a second detector 6 is further included, which is arranged near the conveyor belt 43. The second detector 6 is used to detect whether there are missing cigarettes in the mold box 41. The second detector 6 also uses a non-contact photoelectric sensor. When the light emitted by the emitter in the second detector 6 is blocked, it can be known that the mold box 41 is full and has sufficient cigarettes; on the contrary, when the light emitted by the emitter in the second detector 6 can be received by the receiver, it can be known that there are gaps in the mold box 41 and cigarettes are missing.

[0057] The controller is electrically connected to the driving motor 42 and the N cigarette pushing motors 302 through four drivers, and is communicatively connected to the first detector 5 and the second detector 6. Specifically, the controller and the four drivers use a real-time field bus.

[0058] In a specific embodiment of the present invention, N=3, that is, the first lower flue 21, the second lower flue 22 and the third lower flue 23 are sequentially distributed from left to right, and the first cigarette pushing mechanism 31, the second cigarette pushing mechanism 32 and the third cigarette pushing mechanism 33 are sequentially distributed from left to right. The working principle of the cigarette feeding device of this embodiment is as follows:

[0059] The cigarette warehouse 1 transports cigarettes to the first lower flue 21, the second lower flue 22 and the third lower flue 23 respectively, and the cigarettes fall freely along the first lower flue 21, the second lower flue 22 and the third lower flue 23, and form cigarette groups at the bottom of the first lower flue 21, the second lower flue 22 and the third lower flue 23. The three cigarette pushing motors 302 and the driving motor 42 respectively drive the cigarette pushing row 301 and the conveyor belt 43 to make intermittent movements in a rhythmically coordinated manner, so that the cigarette groups at the bottom of the first lower flue 21, the second lower flue 22 and the third lower flue 23 are pushed into different mold boxes 41 respectively, and then the mold boxes 41 containing the cigarette groups move with the conveyor belt 43 to transport the cigarette groups to the downstream packaging station.

[0060] The present invention also provides a control method for the above-mentioned cigarette feeding device, and the control method comprises the following steps:

[0061] According to the demand for pushing cigarettes, the electronic cam curves of the driving motor 42 and the three cigarette pushing motors 302 are respectively set, and the electronic cam curves are stored in the controller in the form of a data table. The controller controls the driving motor 42 and the three cigarette pushing motors 302 to operate according to their corresponding electronic cam curves, so that the mold box conveying mechanism 4 and the three cigarette pushing mechanisms 3 perform intermittent movements with coordinated rhythms, ensuring that each mold box 41 is filled with a group of cigarettes.

[0062] When the first detector 5 detects that a certain lower flue 2 is clogged with cigarettes, or a certain cigarette pushing mechanism 3 fails, the controller controls the corresponding cigarette pushing motor 302 to stop working, and switches the electronic cam curves of the cigarette pushing motors 302 in the other two cigarette pushing mechanisms 3, changes the rhythm of pushing cigarettes, and completes the cleaning of the clogged lower flue 2 or the elimination of the failure of the cigarette pushing mechanism 3 without stopping the machine, and ensures that each mold box 41 is filled with a cigarette group.

[0063] Figure 5 , Figure 6 and Figure 7 The electronic cam curve switching diagrams of the cigarette pushing motor 302 in the first cigarette pushing mechanism 31, the second cigarette pushing mechanism 32 and the third cigarette pushing mechanism 33 are shown respectively under different fault conditions. Figure 5 (a) Figure 6 (a) and Figure 7 (a) A schematic diagram of the switching of the electronic cam curve corresponding to the first cigarette pushing mechanism 31, Figure 5 (b) Figure 6 (b) and Figure 7 (b) A schematic diagram of the switching of the electronic cam curve corresponding to the second cigarette pushing mechanism 32, Figure 5 (c) Figure 6 (c) and Figure 7 (c) Schematic diagram of the switching of the electronic cam curve corresponding to the third cigarette pushing mechanism 33.

[0064] exist Figure 5-7 In the figure, the X-axis is the machine phase direction, and one scale is one machine cycle. In the A time period and the C time period, the first lower flue 21, the second lower flue 22 and the third lower flue 23 are all kept unobstructed and all mechanisms work normally. In the B time period, the lower flue is blocked or the smoke exhaust mechanism fails. The Y-axis is the operating angle of the cigarette pushing motor 302. When the output shaft of the cigarette pushing motor 302 rotates to the maximum angle, the single-degree-of-freedom motion component drives the cigarette pushing exhaust 301 to move forward to the maximum stroke, pushing the cigarette group into the mold box 41.

[0065] Depend on Figure 5 It can be seen that in the A time period and the C time period, the output shaft of the cigarette pushing motor 302 first rotates to the maximum angle within one machine cycle to complete the "pushing" action, then returns to the original position within one machine cycle to complete the "collecting" action, and then stops running within one machine cycle, and repeats this cycle. In the B time period, the first lower smoke duct 21 is blocked or the first cigarette pushing mechanism 31 fails. At this time, the controller controls the first cigarette pushing mechanism 31 to stop working, and the cigarette pushing motors 302 in the second and third cigarette pushing mechanisms 32 and 33 operate according to the rule of "rotating to the maximum angle within one machine cycle and returning to the original position within one machine cycle", that is, by canceling the machine cycle in which the second and third cigarette pushing mechanisms 32 and 33 stop running, it is ensured that the mold box 41 is filled.

[0066] Depend on Figure 6 It can be known that in the A time period and the C time period, the output shaft of the cigarette pushing motor 302 first rotates to the maximum angle in one machine cycle to complete the action of "pushing", then returns to the original position in one machine cycle to complete the action of "collecting", and then stops running in one machine cycle, and circulates according to this rule. In the B time period, the second lower flue 22 is blocked or the second cigarette pushing mechanism 32 fails. At this time, the controller controls the second cigarette pushing mechanism 32 to stop working, and the cigarette pushing motor 302 in the first cigarette pushing mechanism 31 and the third cigarette pushing mechanism 33 first repeats "rotating to the maximum angle in half a machine cycle and returning to the original position in half a machine cycle" twice, and then stops running in two machine cycles, and circulates according to this rule. That is, by changing the cigarette pushing rhythm of the first cigarette pushing mechanism 31 and the third cigarette pushing mechanism 33, it is ensured that the mold box 41 is filled.

[0067] Depend on Figure 7It can be seen that in the A time period and the C time period, the output shaft of the cigarette pushing motor 302 first rotates to the maximum angle within one machine cycle to complete the "pushing" action, then returns to the original position within one machine cycle to complete the "collecting" action, and then stops operating within one machine cycle, and repeats this cycle. In the B time period, the third lower smoke duct 23 is blocked or the third cigarette pushing mechanism 33 fails. At this time, the controller controls the third cigarette pushing mechanism 33 to stop working, and the cigarette pushing motors 302 in the first cigarette pushing mechanism 31 and the second cigarette pushing mechanism 32 operate according to the rule of "rotating to the maximum angle within one machine cycle and returning to the original position within one machine cycle", that is, by canceling the machine cycle in which the first cigarette pushing mechanism 31 and the second cigarette pushing mechanism 32 stop operating, it is ensured that the mold box 41 is filled.

[0068] Specifically, when the second detector 6 detects that cigarettes are missing in a certain mold box 41, the cigarette pushing mechanism 3 corresponding to the cigarette group is judged according to the shift register in the controller. When it is detected that the cigarette group pushed out by the same cigarette pushing mechanism 3 for a preset number of consecutive times is missing, the controller determines that the cigarette pushing mechanism 3 has a fault, controls the cigarette pushing mechanism 3 to stop working, and switches the electronic cam curves of the cigarette pushing motors 302 in the other two cigarette pushing mechanisms 3 to change the rhythm of pushing cigarettes. The adjustment of the cigarette pushing mechanism 3 is completed without stopping the machine, and it is ensured that each mold box 41 is filled with a cigarette group.

[0069] From the above, it can be seen that the cigarette feeding device of the present invention can complete the adjustment of the blocked lower smoke duct or faulty cigarette pushing mechanism without stopping the machine by switching the electronic cam curve of the motor, thereby greatly saving the waste of raw and auxiliary materials caused by machine shutdown (for example, glue drying and cigarette pack rejection due to shutdown), and ensuring that the mold box conveyed to the downstream by the mold box conveying mechanism is filled, so that aluminum foil and inner frame paper will not be rejected during the packaging process of the subsequent workstation.

[0070] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A cigarette feeding device, characterized in that: It includes N lower smoke ducts for cigarettes to fall, N cigarette pushing mechanisms, a mold box conveying mechanism and a controller, where N is a positive integer greater than or equal to 2. A first detector is provided at a predetermined depth of the lower flue for detecting whether cigarette blockage occurs in the lower flue; The N cigarette pushing mechanisms and the N lower flues are arranged in one-to-one correspondence, the cigarette pushing mechanism comprises a cigarette pushing motor and a single-degree-of-freedom motion component, a cigarette pushing row is arranged on the top of the single-degree-of-freedom motion component, the cigarette pushing motor drives the single-degree-of-freedom motion component to move, drives the cigarette pushing row to perform linear reciprocating motion, and pushes the cigarette group located at the bottom of the lower flue; The mold box conveying mechanism includes a driving motor, a conveyor belt rotating under the drive of the driving motor, and a plurality of mold boxes arranged at intervals on the outer circumference of the conveyor belt, wherein the mold boxes are used to receive the cigarette groups; The controller is electrically connected to the driving motor and N cigarette pushing motors respectively, and is communicatively connected to the first detector.

2. The cigarette feeding device according to claim 1, characterized in that: It also includes a second detector arranged near the conveyor belt, which is used to detect whether there are missing cigarettes in the mold box; the controller is communicatively connected with the second detector.

3. The cigarette feeding device according to claim 1, characterized in that: The single-degree-of-freedom motion assembly includes a mounting bracket, a drive shaft, a first passive shaft, a second passive shaft, a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod and a fifth connecting rod. The driving shaft is hinged in the mounting bracket, one end of which is connected to the cigarette pushing motor, a swing arm is provided on the driving shaft, the lower end of the swing arm is hinged to the first connecting rod, the upper end of the swing arm is hinged to the second connecting rod, the first connecting rod and the second connecting rod are hinged through the third connecting rod, and the cigarette pushing row is arranged on the top of the third connecting rod; The first passive shaft is hinged in the mounting bracket, one end of the fourth connecting rod is hinged to the first passive shaft, and the other end is hinged to the first connecting rod; The second passive shaft is hinged in the mounting bracket, one end of the fifth connecting rod is hinged to the second passive shaft, and the other end is hinged to the second connecting rod.

4. The cigarette feeding device according to claim 1, characterized in that: The cigarette pushing motor is an AC servo motor.

5. A control method for a cigarette feeding device according to any one of claims 1 to 4, characterized in that: The following steps are involved: According to the demand for pushing cigarettes, the electronic cam curves of the driving motor and the N cigarette pushing motors are respectively set, and the controller controls the driving motor and the N cigarette pushing motors to operate according to their corresponding electronic cam curves, so that the mold box conveying mechanism and the N cigarette pushing mechanisms perform intermittent movements with coordinated rhythms, ensuring that each mold box is filled with a group of cigarettes; When the first detector detects that a lower smoke duct is clogged with cigarettes or a cigarette pushing mechanism fails, the controller controls the corresponding cigarette pushing motor to stop working, and switches the electronic cam curves of the cigarette pushing motors in the remaining N-1 cigarette pushing mechanisms, changes the rhythm of cigarette pushing, and completes the cleaning of the clogged lower smoke duct or clearing of the fault without stopping the machine, and ensures that each mold box is filled with a cigarette group.

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