Cigarette package conveying method

Abstract

The present invention discloses a cigarette pack conveying method, which uses a cigarette pack conveying device to convey cigarette packs, and relates to the technical field of cigarette conveying equipment. The cigarette pack conveying device includes a lifting device, a first transfer device, a second transfer device, and a transfer storage bin; the cigarette pack conveying method includes step one, placing a number of cigarette packs in the transfer storage bin; step two, controlling the second transfer device to transfer the cigarette packs one by one from the transfer storage bin to the lower part of the lifting device; step three, controlling the lifting device to transport the cigarette packs located at the lower part of the lifting device one by one from the lifting device to the upper part of the lifting device; step four, controlling the first transfer device to transport the cigarette packs located at the upper part of the lifting device one by one to the cigarette pack packaging production line. A cigarette pack conveying method of the present invention controls the cigarette pack conveying device to lift and transport cigarette packs in an orderly manner, thereby replacing the manual operation of transporting cigarette packs from a low place to a high place, thereby improving the efficiency of cigarette pack conveying and avoiding cigarette pack conveying blockage.

Description

Technical Field

[0001] The present invention relates to the technical field of cigarette conveying equipment, and in particular to a cigarette pack conveying method. Background Art

[0002] During the cigarette packing process, when unqualified cigarette packs need to be discarded, gaps will be created; in addition, in order to reduce the floor space occupied by the cigarette pack production and packaging equipment, technicians will also set the cigarette pack conveying device between the cigarette pack production and packaging equipment above the cigarette pack production and packaging equipment to reduce the distance between each cigarette pack production and packaging equipment.

[0003] Affected by the above factors, when vacancies occur on the cigarette packaging production line due to the operation of rejecting unqualified cigarette packs, technicians need to add cigarette packs at a lower position to the cigarette pack conveying device at a higher position to fill the vacancies; however, in order to complete the replenishment work, technicians have to frequently walk between high and low positions, or bend over, which makes the technicians easily tired and affects the replenishment efficiency; moreover, at least one operator is required on each transportation line to complete the replenishment work, and the labor cost is also relatively high.

[0004] In this regard, a Chinese patent document discloses a cigarette pack refilling device (application number: 201921002319.2), which provides a cigarette pack refilling device for the cigarette packaging industry. The cigarette pack refilling device includes a bracket and a conveyor belt horizontally arranged on the bracket. The end of the conveyor belt is provided with a guide track. The guide track includes a feed end and a discharge end. The feed end is tilted downward, and the outlet of the discharge end is downward. It has the advantages of being able to flip the cigarette pack at a certain angle and having a simple structure.

[0005] However, the cigarette pack refilling device cannot transport cigarette packs at a low position to a high position. Summary of the Invention

[0006] The present invention provides a cigarette pack conveying method, which utilizes a cigarette pack conveying device to orderly lift and convey cigarette packs, thereby replacing the manual operation of conveying cigarette packs from a low place to a high place, improving the cigarette pack conveying efficiency, avoiding cigarette pack conveying blockage, and solving the above-mentioned technical problems.

[0007] The technical solution of the present invention to solve the above problems is as follows: providing a cigarette pack conveying method, using a cigarette pack conveying device to convey cigarette packs, the cigarette pack conveying device includes a lifting device, a first transfer device, a second transfer device, and a transfer storage bin; the lifting device includes a vertical support, a conveying mechanism, a drive assembly, and a loading assembly, the conveying mechanism is vertically arranged on the vertical support, the drive assembly is used to drive the conveying mechanism, and the conveying mechanism is provided with multiple loading assemblies, and the loading assemblies are used to carry cigarette packs; the first transfer device is arranged on the upper part of the lifting device, and a plurality of cigarette packs are stacked and stored in the transfer storage bin, and the second transfer device is arranged on the lower part of the lifting device; the cigarette pack conveying method includes the following steps:

[0008] Step 1: Place several cigarette packs in the transit storage bin;

[0009] Step 2: Control the second transfer device to transfer the cigarette packs one by one from the transfer storage bin to the lower part of the lifting device;

[0010] Step 3: Control the lifting device to transport the cigarette packs located at the lower part of the lifting device to the upper part of the lifting device one by one;

[0011] Step 4: Control the first transfer device to transport the cigarette packs located on the upper part of the lifting device to the cigarette pack packaging production line one by one.

[0012] Furthermore, the lower part of the lifting device is provided with a lifting and conveying starting position, and the upper part is provided with a lifting and conveying end position. The lifting and conveying starting position is also provided with a first sensor, and the lifting and conveying end position is also provided with a second sensor; a third sensor is provided in the transfer storage bin; the cigarette pack conveying device also includes a first control unit and a second control unit. The first control unit is used to control the operating status of the second transfer device, and the second control unit is used to control the operating status of the lifting device.

[0013] Furthermore, in step 2, the first sensor detects in real time whether there is a cigarette pack at the starting position of the lifting and conveying, and the second sensor detects in real time whether there is a cigarette pack at the end position of the lifting and conveying;

[0014] If there are no cigarette packs at both the lifting and conveying starting position and the lifting and conveying end position, the first control unit controls the second transfer device to start, and the second transfer device transfers the cigarette packs to the lifting and conveying starting position. The second control unit controls the lifting device to stop to wait for the cigarette packs to be lifted;

[0015] If there are cigarette packs at the starting position of the lifting and conveying but no cigarette packs at the end position of the lifting and conveying, the first control unit controls the second transfer device to stop, and the second control unit controls the lifting device to start, and the lifting device lifts and transports the cigarette packs that have reached the starting position of the lifting and conveying to the end position of the lifting and conveying.

[0016] Furthermore, in step three, the first sensor detects in real time whether there is a cigarette pack at the starting position of the lifting and conveying, and the second sensor detects in real time whether there is a cigarette pack at the end position of the lifting and conveying;

[0017] If there are cigarette packs at both the lifting and conveying starting position and the lifting and conveying end position, the first control unit controls the second transfer device to stop, and the second control unit controls the lifting device to stop, and the first transfer device transfers the cigarette packs that have reached the lifting and conveying end position to supplement the cigarette pack packaging production line;

[0018] If there are no cigarette packs at the lifting and conveying starting position, but there are cigarette packs at the lifting and conveying end position, the first control unit controls the second transfer device to stop, and the second control unit controls the lifting device to stop, and the first transfer device transfers the cigarette packs that have reached the lifting and conveying end position to supplement the cigarette pack packaging production line;

[0019] If there are no cigarette packs at both the lifting and conveying starting position and the lifting and conveying end position, the first control unit controls the second transfer device to start, and the second control unit controls the lifting device to stop, and the second transfer device transfers the cigarette packs to the lifting and conveying starting position;

[0020] If there are cigarette packs at the starting position of the lifting and conveying but no cigarette packs at the end position of the lifting and conveying, the first control unit controls the second transfer device to stop, and the second control unit controls the lifting device to start, and the lifting device lifts and transports the cigarette packs that have reached the starting position of the lifting and conveying to the end position of the lifting and conveying.

[0021] Furthermore, in all steps, the third sensor detects in real time whether the number of remaining cigarette packs in the transfer storage bin is zero;

[0022] If the number of remaining cigarette packs in the transfer storage bin is zero, the first control unit controls the second transfer device to stop, and the second control unit controls the lifting device to stop, and the cigarette pack conveying is suspended, waiting for workers to replenish cigarette packs in the transfer storage bin;

[0023] If the number of remaining cigarette packs in the transfer storage bin is not zero, neither the first control unit nor the second control unit issues a control command.

[0024] Furthermore, the second transfer device is provided with a second transfer delivery end position on its conveying stroke, and the second transfer delivery end position overlaps with the lifting and conveying starting position; the first transfer device is provided with a first transfer delivery starting position on its conveying stroke, and the first transfer delivery starting position overlaps with the lifting and conveying end position.

[0025] Furthermore, the cigarette packet conveying device also includes an early warning device, and the early warning device is connected to the first sensor, the second sensor, the third sensor, the first control unit, and the second control unit.

[0026] Furthermore, the number of times the cigarette packs appear at the starting position of the lifting and conveying is counted, and a threshold value of the number of times the cigarette packs appear at the starting position of the lifting and conveying is set; when the counted number of times the cigarette packs appear at the starting position of the lifting and conveying increases to the set threshold value of the number of times the cigarette packs appear at the starting position of the lifting and conveying, the early warning device sends a first type of early warning signal, the first control unit controls the second transfer device to stop according to the received first type of early warning signal, and the second control unit controls the lifting device to start according to the received first type of early warning signal.

[0027] Furthermore, the number of times cigarette packets appear at the lifting and conveying terminal position is counted, and a threshold value of the number of times cigarette packets appear at the lifting and conveying terminal position is set; when the counted number of times cigarette packets appear at the lifting and conveying terminal position increases to the set threshold value of the number of times cigarette packets appear at the lifting and conveying terminal position, the early warning device sends a second type of early warning signal, the first control unit controls the second transfer device to shut down according to the received second type of early warning signal, and the second control unit controls the lifting device to shut down according to the received second type of early warning signal.

[0028] Furthermore, the warning signal emitted by the warning device includes an acoustic and optical signal and an electrical signal.

[0029] Furthermore, the conveying mechanism includes two relatively arranged vertical conveyor belts, and two sets of pulley groups respectively used to drive one of the vertical conveyor belts to operate. Both sets of pulley groups are transmission-connected to the driving assembly, and the two sets of pulley groups operate synchronously under the drive of the driving assembly.

[0030] Furthermore, the driving assembly includes a lifting motor, a worm gear, and a worm. The worm gear is integrally arranged with the output rotating shaft of the lifting motor. The pulleys of the two pulley groups are each coaxially arranged with at least one worm gear. The worm gear is simultaneously connected to at least two worm gears. The lifting motor drives the two vertical conveyor belts to run synchronously through the worm gear mechanism, thereby driving the loading assembly to lift and transport cigarette packs.

[0031] Furthermore, the carrying assembly includes two supporting bars, which are fixedly arranged on two vertical conveyor belts respectively, and when the two vertical conveyor belts run synchronously, the two supporting bars are always aligned with each other to jointly support the cigarette packs.

[0032] Furthermore, both sides of the vertical conveyor belt are provided with limit plates, and the limit plates on both sides are also located on both sides of the loading assembly. The limit plates on both sides cooperate with each other to further limit the cigarette packs on the loading assembly to prevent the cigarette packs from falling.

[0033] Furthermore, the first transfer device includes a first drive motor, a first conveyor belt, a transfer guide rail, and a first cigarette pushing assembly. One end of the transfer guide rail extends to the edge of the conveying mechanism, and the first conveyor belt extends to the top of the lifted cigarette pack. A plurality of first cigarette pushing assemblies are also provided on the first conveyor belt. The transfer guide rail is set below the first conveyor belt. The first drive motor is used to drive the first conveyor belt to run so that the first conveyor belt drives the plurality of first cigarette pushing assemblies to move horizontally to the top of the lifted cigarette pack and then leave from the top of the lifted cigarette pack in turn; when the first cigarette pushing assembly leaves the top of the lifted cigarette pack, the first cigarette pushing assembly also pushes the cigarette pack on the loading assembly horizontally onto the transfer guide rail, and further pushes the cigarette pack to leave from the other end of the transfer guide rail, and then enters the cigarette pack packaging production line.

[0034] Furthermore, the cigarette pack conveying device also includes a third conveyor belt and a third drive motor. One end of the third conveyor belt extends to the other end of the transfer guide rail, and the other end of the third conveyor belt extends to the cigarette pack packaging production line. The third drive motor is used to drive the third conveyor belt to operate so that the third conveyor belt receives the cigarette packs transferred and transported by the first transfer device and transports them to the cigarette pack packaging production line.

[0035] Furthermore, the cigarette pack conveying device also includes a transfer storage bin arranged on one side of the lifting device, and an opening is provided at the upper end of the transfer storage bin. Multiple cigarette packs are stacked and stored in the transfer storage bin through the opening above the transfer storage bin.

[0036] Furthermore, the cigarette pack conveying device also includes a second transfer device arranged between the transfer storage bin and the lifting device, and the second transfer device is used to transfer the cigarette packs in the transfer storage bin to the lower part of the lifting device to feed the lifting device.

[0037] Furthermore, the second transfer device includes a second drive motor, a second conveyor belt, and a second cigarette pushing assembly. The second conveyor belt is provided with multiple second cigarette pushing assemblies, and the lower end of the transfer storage bin is also provided with an opening. One end of the second conveyor belt extends to the lower end opening of the transfer storage bin, and the other end extends to the lower end of the lifting device. The second drive motor is used to drive the second conveyor belt to operate, so that the second conveyor belt drives the multiple second cigarette pushing assemblies to pass through the lower end opening of the transfer storage bin in turn, and then the multiple second cigarette pushing assemblies push the cigarette packs out of the lower end of the transfer storage bin in turn. The second cigarette pushing assembly then cooperates with the second conveyor belt to transport the pushed out cigarette packs to the lower part of the lifting device, so that the lifting device can lift and transport the cigarette packs.

[0038] Beneficial effects of the present invention:

[0039] A cigarette packet conveying method according to the present invention utilizes a first sensor to detect the presence of cigarette packets at the starting position of the lift and conveying, and a second sensor to detect the presence of cigarette packets at the end position of the lift and conveying. The detection signals of the first and second sensors are combined to generate four combined signals, which in turn generate four control commands. During the cigarette packet conveying process, the first control unit continuously receives any of the four control commands to control the real-time start or stop of the second transfer device. The second control unit continuously receives any of the four control commands to control the real-time start or stop of the lift device, thereby ensuring that the cigarette packets are conveyed in an orderly manner and that the cigarette packets can be smoothly transferred between the second transfer device and the lift device, and between the lift device and the first transfer device. Furthermore, if a cigarette packet is already at the starting position of the lift and conveying, the second transfer device will not continue to convey the cigarette packet, causing cigarette packet jamming at the starting position of the lift and conveying. Similarly, if a cigarette packet is already at the end position of the lift and conveying, the first transfer device will not continue to convey the cigarette packet, and the lift device will not continue to elevate and convey the cigarette packet, preventing cigarette packet jamming at the end position of the lift and conveying. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In the drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the present invention, but not all. It is clear that those skilled in the art can derive other drawings from these drawings without inventive effort.

[0041] Figure 1 This is a schematic diagram of the cigarette packet conveying method of this embodiment;

[0042] Figure 2 is an overall structural diagram of the cigarette packet conveying device of this embodiment;

[0043] Figure 3 is a structural diagram of the lifting device of this embodiment;

[0044] Figure 4 is a structural diagram of the first transfer device of this embodiment;

[0045] Figure 5 This is an assembly diagram of the first transfer device and the lifting device of this embodiment;

[0046] Figure 6 This is a structural diagram of the transit storage bin of this embodiment;

[0047] Figure 7 is a structural diagram of the second transfer device of this embodiment;

[0048] Figure 8This is an assembly diagram of the transfer storage bin and the second transfer device of this embodiment;

[0049] Figure 9 1 is an assembly diagram of the third conveyor belt and the third drive motor of this embodiment;

[0050] 1-lifting device, 11-vertical bracket, 12-transmission mechanism, 13-drive assembly, 14-carrying assembly, 15-limiting plate;

[0051] 2-first transfer device, 21-first drive motor, 22-first conveyor belt, 23-transfer guide rail, 24-first cigarette pushing assembly;

[0052] 31-third conveyor belt, 32-third drive motor;

[0053] 4-transfer storage bin, 41-baffle, 42-side plate, 43-movable bar, 44-bar, 45-fixed plate, 46-cover plate, 47-connector;

[0054] 5-Cigarette packaging production line;

[0055] 6-second transfer device, 61-second drive motor, 62-second conveyor belt, 63-second cigarette pushing assembly. DETAILED DESCRIPTION

[0056] In this specification, directional terms such as up, down, left, right, front, back, front, back, top, and bottom, which are mentioned or may be mentioned, are defined relative to the configurations shown in the accompanying drawings. The terms "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may vary depending on the location and usage of the component. Therefore, these or other directional terms should not be construed as restrictive.

[0057] See also Figure 2 The cigarette pack conveying device of a specific embodiment of the present invention includes a lifting device 1, a first transfer device 2, a second transfer device 6, and a transfer storage bin 4; the lifting device 1 includes a vertical bracket 11, a conveying mechanism 12, a driving component 13, and a loading component 14, the conveying mechanism 12 is vertically arranged on the vertical bracket 11, the driving component 13 is used to drive the conveying mechanism 12, and a plurality of loading components 14 are arranged on the conveying mechanism 12, and the loading components 14 are used to carry cigarette packs; the first transfer device 2 is arranged at the upper part of the lifting device 1; a plurality of cigarette packs are stacked and stored in the transfer storage bin 4, and the second transfer device 6 is arranged at the lower part of the lifting device 1, and the second transfer device 6 is used to transfer the cigarette packs in the transfer storage bin 4 to the lifting device 1.

[0058] For details, please refer to Figure 3The conveying mechanism 12 includes two vertical conveyor belts arranged opposite each other, and two pulley assemblies for driving each of the vertical conveyor belts. Both pulley assemblies are in transmission connection with the driving assembly 13, and the two pulley assemblies operate synchronously under the drive of the driving assembly 13. In this embodiment, one pulley assembly includes two pulleys, which are arranged vertically. A vertical conveyor belt is wound around the two pulleys, and the upper and lower pulleys are rotatably mounted on the vertical support 11.

[0059] Moreover, the driving assembly 13 includes a lifting motor, a worm gear, and a worm. The worm gear is integrated with the output rotating shaft of the lifting motor. The lifting motor is fixedly installed horizontally at the upper end of the vertical bracket 11. A worm gear is coaxially arranged on one side of the pulleys at the upper ends of the two pulley groups. The worm gear is provided with two sets of worm teeth, and the two sets of worm teeth are inclined and symmetrical to each other. The lifting motor is connected to the two pulley groups through a worm gear mechanism at the upper end of the conveying mechanism 12. One lifting motor can drive the two pulleys to rotate at the same time. The rotation directions of the two pulleys are opposite. The relative inner sides of the two vertical conveyor belts can move upward synchronously, so that the loading assembly 14 can rise and move between the two vertical conveyor belts to achieve the purpose of lifting the cigarette packs.

[0060] Corresponding to this is: See Figure 4 , multiple supporting bars are evenly spaced on both vertical conveyor belts, and the multiple supporting bars on the two vertical conveyor belts are opposite to each other in pairs, so as to form multiple carrier assemblies 14. In this regard, when the supporting bars between the two vertical conveyor belts are driven to move from bottom to top, a cigarette pack can be simultaneously supported by two opposing and mutually intersecting supporting bars on the two vertical conveyor belts, and lifted and transported upward by these two supporting bars to the upper end position of the vertical conveyor belts; when the cigarette pack is transported to the upper end of the lifting device 1 and transferred to the first transfer device 2, the two supporting bars of a carrier assembly 14 can be separated from each other, and the two supporting bars are respectively moved to the outer positions of the two vertical conveyor belts facing each other, and move downward until they return to the lower ends of the opposing inner positions of the two vertical conveyor belts to support and transport the cigarette pack upward again.

[0061] In addition, in this embodiment, two vertically movable adjustment blocks are provided at the lower part of the vertical bracket 11 corresponding to the position for setting the pulleys, and the pulleys at the lower ends of the two pulley groups are respectively set on an adjustment block, so that technicians can adjust the tension of the vertical conveyor belt by adjusting the vertical position of the adjustment block, so that the two vertical conveyor belts are always kept in a tensioned state, ensuring that the lifting device 1 can operate normally.

[0062] It should be noted that to further limit the position of cigarette packs and prevent them from falling off the carrier assembly 14, when the support bars are located between the two vertical conveyor belts, an additional limit bar is installed above each support bar. The distance between each support bar and the limit bar above it is exactly the same as, or slightly greater than, the thickness of a cigarette pack. Furthermore, along the axis of the pulleys, limit plates 15 are installed on both sides of the two vertical conveyor belts. These limit plates 15 are also located on both sides of the carrier assembly 14. These limit plates 15 cooperate with each other to further limit the cigarette packs in the horizontal direction, preventing them from falling off the carrier assembly 14.

[0063] See also Figure 2 The first transfer device 2 is horizontally arranged at the upper end of the lifting device 1, and the first transfer device 2 is fixedly mounted on the upper end of the vertical bracket 11 through an additional mounting bracket.

[0064] See also Figure 4 and Figure 5 The first transfer device 2 includes a first drive motor 21, a first conveyor belt 22, a transfer guide rail 23, and a first cigarette pushing component 24; Figure 4 Taking the shown orientation as an example, the first conveyor belt 22 is arranged horizontally, the left end of the first conveyor belt 22 extends between the two vertical conveyor belts, the pulley at the right end of the first conveyor belt 22 is connected to the first drive motor 21 by a belt, and a plurality of first cigarette pushing components 24 are equidistantly arranged on the first conveyor belt 22. The first cigarette pushing components 24 are two first convex strips fixedly arranged on the first conveyor belt 22. The spacing between the two first convex strips is equivalent to the width of a cigarette pack. The transfer guide rail 23 is a straight guide rail. The transfer guide rail 23 is arranged directly below the first conveyor belt 22. The extension direction of the transfer guide rail 23 is the same as the transmission direction of the first conveyor belt 22. The left end of the transfer guide rail 23 abuts against the edge of the side wall of the vertical conveyor belt, and the left end of the transfer guide rail 23 is also located at the upper end edge of the limit plate 15.

[0065] To this end, in this embodiment, the technician turns on the first drive motor 21 to make the first conveyor belt 22 run, so as to drive a first cigarette pushing component 24 to move between the two vertical conveyor belts and to a downward position; at the same time, the lifting motor drives the loading component 14 carrying the cigarette pack to move upward, and when the upper end surface of the loading bar is flush with the upper end surface of the transfer guide rail 23, the cigarette pack is just lifted to the position between the two first convex strips; after that, the lifting motor stops running, and the first drive motor 21 drives the first cigarette pushing component 24 to move horizontally to the right from between the two vertical conveyor belts, and drives the cigarette pack to move to the right onto the transfer guide rail 23, and then the lifting motor runs again to drive the next loading component 14 and cigarette pack to move upward, and the first drive motor 21 also drives the next first cigarette pushing component 24 to move again between the two vertical conveyor belts and to a downward position, thus forming a cycle, which has realized the operation of fully automatic lifting and conveying cigarette packs and automatically transferring the cigarette packs from the top of the lifting device 1.

[0066] Generally speaking, Figure 5 Taking the illustrated orientation as an example, the right end of the transfer rail 23 can extend directly to the cigarette packaging production line, allowing cigarette packs to be directly added to the cigarette packaging production line when they fall out of the right end of the transfer rail 23. However, due to factors such as the installation method, the first transfer device 2 is relatively short, resulting in a low full-load capacity for the entire cigarette pack conveyor, making it unable to meet the large-volume cigarette pack conveying needs of the tobacco factory.

[0067] In this embodiment, please refer to Figure 2 and Figure 9 A third conveyor belt 31 and a third drive motor 32 are also provided at the output end of the first transfer device 2. The structure of the third conveyor belt 31 is the same as that of the first conveyor belt 22, but the third conveyor belt 31 has a longer conveying length, effectively increasing the full-load conveying capacity of the entire cigarette pack conveying device. Furthermore, a fourth transfer device is provided at the output end of the third conveyor belt 31. The fourth transfer device has the same structure as the first transfer device 2, except that one end of the fourth transfer device is located above the output end of the third conveyor belt 31, and the guide rail structure of the fourth transfer device abuts the side end of the output end of the third conveyor belt 31. The output end of the guide rail structure of the fourth transfer device extends to the cigarette pack packaging production line, where the cigarette packs are ultimately transferred and transported to the cigarette pack packaging production line via the fourth transfer device.

[0068] In this embodiment, the third conveyor belt 31 and the fourth transfer device are both fixed to external equipment in the production workshop through inclined mounting brackets.

[0069] Further, see Figure 6 、 Figure 7 、 Figure 8In this embodiment, a transfer storage bin 4 and a second transfer device 6 are also installed on the vertical bracket 11; an opening is provided at the upper end of the transfer storage bin 4, and multiple cigarette packs are stacked and stored in the transfer storage bin 4 through the opening above the transfer storage bin 4; an opening is also provided at the lower end of the transfer storage bin 4, and the second transfer device 6 is provided between the lower end opening of the transfer storage bin 4 and the lifting device 1. The second transfer device 6 is used to horizontally transfer the cigarette packs in the transfer storage bin 4 to the lower part of the lifting device 1 to feed the lifting device 1.

[0070] For details, please refer to Figure 6 In this embodiment, the transit storage bin 4 includes a baffle 41, side panels 42, a movable stop bar 43, a stop bar 44, a fixed plate 45, a cover plate 46, and a connector 47. The baffle 41 is fixed to the side panels 42 with screws, the movable stop bar 43 is fixed to the connector 47 with screws, the stop bar 44 is fixed to the side panels 42 with screws, the cover plate 46 is fixed to the fixed plate 45 with screws, and the connector 47 is fixed to the side panels 42 with screws. The movable stop bar 43 and the stop bar 44 are both located on the other side of the side panel 42 that is not connected to the baffle 41. Thus, the baffle 41, side panels 42, movable stop bar 43, and stop bar 44 form a material channel, and cigarette packets placed in the material storage mechanism 4 can only move downward within the material channel and will not leave the material channel in any horizontal direction. When the operator places cigarette packs into the transfer storage bin 4, he can choose to first unscrew the screws on the movable stop bar 43 and rotate it downwards. When the total height of the cigarette packs placed is close to the height of the stop bar 44, the movable stop bar 43 is rotated back and fixed to the connecting piece 47 with screws, and then the cigarette packs are placed into the transfer storage bin 4; the cigarette packs can also be directly placed into the transfer storage bin 4 from the upper opening position; when the cigarette packs located at the bottom layer of the transfer storage bin 4 are transferred to the lifting device 1 by the second transfer device 6, the cigarette packs located on the upper layer of the transfer storage bin 4 can fall freely to replenish the lower opening of the transfer storage bin 4.

[0071] In this embodiment, the operator only needs to regularly put the cigarette packs into the transfer storage warehouse 4. The subsequent transfer of the cigarette packs can be completely achieved by the second transfer device 6, the lifting device 1, the first transfer device 2, the third conveyor belt 31, and the fourth transfer device, so as to effectively reduce the consumption of manpower and material resources and accurately control the material transportation time and demand.

[0072] See also Figure 7 and Figure 8In this embodiment, the second transfer device 6 includes a second drive motor 61, a second conveyor belt 62, and a second cigarette pushing assembly 63. The second conveyor belt 62 is provided with multiple second cigarette pushing assemblies 63. The lower end of the transfer storage bin 4 is also provided with an opening. One end of the second conveyor belt 62 extends to the lower end opening of the transfer storage bin 4, and the other end extends to the lower end of the lifting device 1. The second drive motor 61 is used to drive the second conveyor belt 62 to operate so that the second conveyor belt 62 drives multiple second cigarette pushing assemblies 63 to pass through the lower end opening of the transfer storage bin 4 in turn, and then the multiple second cigarette pushing assemblies 63 push the cigarette packs out of the lower end of the transfer storage bin 4 in turn. The second cigarette pushing assembly 63 then cooperates with the second conveyor belt 62 to transport the pushed-out cigarette packs to the lower part of the lifting device 1 so that the lifting device 1 can lift and transport the cigarette packs.

[0073] Specifically, the second transfer device 6 is fixedly mounted on the vertical support 11 through an additional mounting bracket, and the lower end of the second transfer device 6 is flush with the lower end of the transfer storage bin 4. Figure 7 Taking the shown orientation as an example, the right end of the second conveyor belt 62 extends to just below the lower opening of the transfer storage bin 4, the pulley at the left end of the second conveyor belt 62 is connected to the second drive motor 61 through a belt drive, and the left end of the second conveyor belt 62 also extends between the two vertical conveyor belts of the lifting device 1 and is located at the lower part of the lifting device 1. A plurality of second cigarette pushing assemblies 63 are equidistantly arranged on the second conveyor belt 62. The second cigarette pushing assemblies 63 are two second convex strips fixedly arranged on the second conveyor belt 62, and the spacing between the two second convex strips is equivalent to the width of a cigarette pack.

[0074] In this embodiment, the technician turns on the second drive motor 61 to run the second conveyor belt 62 to drive a second cigarette pushing component 63 to move to the lower end opening of the transfer storage bin 4, and makes the two second ridges be located on both sides of the lower end opening of the transfer storage bin 4. At this time, the falling of the cigarette pack is not blocked by the second ridge, and the cigarette pack at the bottom of the transfer storage bin 4 can just fall between the two second ridges. Moreover, the cigarette pack is also driven by the second conveyor belt 62 to move toward the lifting device 1 until the cigarette pack and the second cigarette pushing component 63 are moved between the two vertical conveyor belts. At this time, the loading component 14 can lift and carry the cigarette pack from the second conveyor belt 62 when it moves upward driven by the vertical conveyor belt, so as to achieve the purpose of automatically transferring the cigarette pack from the transfer storage bin 4 to the lifting device 1.

[0075] In addition, the lifting device 1 is provided with a lifting and conveying starting position at the bottom and a lifting and conveying end position at the top. A first sensor is provided at the lifting and conveying starting position, and a second sensor is provided at the lifting and conveying end position. A third sensor is provided in the lower opening of the transfer storage bin 4. The cigarette packet conveying device further includes a first control unit and a second control unit. The first control unit is electrically connected to both the first and second sensors, and controls the second transfer device 6 to shut down or start normally based on a combination of a detection signal received from the first and second sensors. The second control unit is also electrically connected to both the first and second sensors, and controls the lifting device 1 to shut down or start normally based on a combination of a detection signal received from the first and second sensors.

[0076] In this embodiment, the sensor is a photoelectric sensor and also has a counting function. The first control unit and the second control unit are both electrically controlled switches. The first control unit controls the drive motor of the low-level conveyor device 1, and the second control unit controls the drive motor of the lifting conveyor device 2. Furthermore, the first transfer device 2 can be inserted between the two vertical conveyor belts of the lifting device 1. Furthermore, the first transfer device 2 can be inserted into the lifting device 1 at any height without being restricted to the carrier assembly 14. Therefore, in practical applications, the first transfer device can be installed at any height based on the actual installation environment within the tobacco factory and can be inserted into any position below the lifting device 1, not just at the lowest end of the lifting device 1. The same applies to the second transfer device 6.

[0077] See also Figure 1 Based on the above-mentioned cigarette pack conveying device, the cigarette pack conveying method of this embodiment includes the following steps:

[0078] Step 1: Place several cigarette packs in the transit storage bin 4;

[0079] Step 2: Control the second transfer device 6 to transfer the cigarette packs one by one from the transfer storage bin 4 to the lower part of the lifting device 1;

[0080] Step 3: Control the lifting device 1 to transport the cigarette packets located at the lower part of the lifting device 1 to the upper part of the lifting device 1 one by one;

[0081] Step 4: Control the first transfer device 2 to transport the cigarette packs located on the upper part of the lifting device 1 to the cigarette pack packaging production line one by one.

[0082] The above steps are specifically implemented as follows: workers first fill the transfer storage bin 4 with cigarette packs, and then close the upper opening of the transfer storage bin 4.

[0083] At the beginning, since neither the first sensor nor the second sensor detects the cigarette pack, the no-smoking pack detection signal emitted by the first sensor and the no-smoking pack detection signal emitted by the second sensor constitute a first combination signal. After receiving the first combination signal, the first control unit will issue a start command to control the second transfer device 6 to start, so that the first transfer device 6 works to transport the cigarette pack at the lower end opening of the transfer storage bin 4 horizontally to the lifting and conveying starting position; in addition, the second control unit will issue a stop command to control the lifting device 1 to stop after receiving the first combination signal, so as to ensure that there will be a group of carrier components 14 that can stably wait below the lifting and conveying starting position, so that after the cigarette pack is transported to the lifting and conveying starting position, the lifting device 1 can correspond to the first actual control carrier component to rise, so as to lift and transport the cigarette pack to the lifting and conveying end position.

[0084] In this embodiment, since multiple cigarette packs are stacked in the transfer storage bin 4, when a cigarette pack is transported horizontally by the second transfer device 6 at the lower end opening of the transfer storage bin 4, the multiple cigarette packs located above the cigarette pack will automatically fall down under the action of gravity, so as to achieve the effect of automatically filling the lower end opening of the transfer storage bin 4 for the cigarette packs, thereby realizing automatic pack out.

[0085] When the cigarette pack is transported to the starting position of the lifting and conveying by the second transfer device 6, the first sensor detects that there is a cigarette pack at the starting position of the lifting and conveying, and the second sensor still detects that there is no cigarette pack at the end position of the lifting and conveying. The cigarette pack detection signal emitted by the first sensor and the no-smok pack signal emitted by the second sensor constitute a second combination signal. After receiving the second combination signal, the first control unit will correspondingly issue a stop command to control the second transfer device 6 to stop, so as to ensure that the cigarette pack currently transported to the starting position of the lifting and conveying by the second transfer device 6 will not move horizontally during transportation; in addition, the second control unit will issue a start command to control the lifting device 1 to start after receiving the second combination signal, so as to lift and transport the cigarette pack located at the starting position of the lifting and conveying to the end position of the lifting and conveying.

[0086] During the process of the cigarette pack being transported from the lifting and conveying starting position to the lifting and conveying end position by the lifting device 1, since the cigarette pack has not yet reached the lifting and conveying end position and has left the lifting and conveying starting position, the first sensor will again detect that there is no cigarette pack at the lifting and conveying starting position, and the second sensor will again detect that there is no cigarette pack at the lifting and conveying end position. The first control unit will again receive the first combination signal and issue a start command to control the second transfer device 6 to start, so that the second transfer device 6 will work again to transport the next cigarette pack at the lower end opening of the transfer storage bin 4 horizontally to the lifting and conveying starting position; in addition, in this embodiment, since the previous cigarette pack has completely left the lifting and conveying starting position, the second control unit will still issue a stop command to control the lifting device 1 to stop after receiving the second combination signal again, and the cigarette pack that has been lifted and conveyed by the lifting device 1 will not block the subsequent cigarette packs from reaching the lifting and conveying end position.

[0087] In this way, before no cigarette packs reach the lifting and conveying terminal position, the first control unit will cyclically receive the above two combined signals to control the second transfer device 6 to transport the cigarette packs one by one to the lifting and conveying starting position, while the second control unit will cyclically receive the above two combined signals to control the lifting device 1 to receive the cigarette packs one by one and transport the cigarette packs one by one to the lifting and conveying terminal position.

[0088] It should be noted that, in this embodiment, the second control unit is provided with a delayed response time for the control command of the second combination signal. The specific duration of the delayed response time is determined by the lifting speed of the lifting device 1, that is, the duration of the delayed response time is greater than or equal to the time required for the cigarette package to be lifted by the lifting device 1 to completely leave the lifting and conveying starting position, so as to ensure that the cigarette package leaving the lifting and conveying starting position can completely avoid the cigarette package that subsequently enters the lifting and conveying starting position.

[0089] When a cigarette pack reaches the end position of the lifting and conveying; at this time, the second sensor detects that there is a cigarette pack at the end position of the lifting and conveying. If the first sensor detects that there is also a cigarette pack at the starting position of the lifting and conveying, the cigarette pack detection signal emitted by the first sensor and the cigarette pack detection signal emitted by the second sensor are combined to form a third combination signal. After receiving the third combination signal, the first control unit issues a stop command to control the second transfer device 6 to stop, so as to suspend the transportation of cigarette packs to the starting position of the lifting and conveying. After receiving the third combination signal, the second control unit also issues a stop command to control the lifting device 1 to stop, so that the cigarette pack stays at the end position of the lifting and conveying, so that the first transfer device 2 can transfer the cigarette pack from the end position of the lifting and conveying to the third conveyor belt 31, thereby facilitating the cigarette pack to enter the cigarette pack packaging production line via the third conveyor belt 31 and the fourth transfer device.

[0090] If the second sensor detects that there is a cigarette pack at the lifting end position and the first sensor detects that there is no cigarette pack at the lifting and conveying starting position, the first sensor sends a no-smoking pack detection signal and the second sensor sends a cigarette pack detection signal to form a fourth combination signal. After receiving the fourth combination signal, the first control unit sends a stop command to control the second transfer device 6 to stop, so as to suspend the transportation of cigarette packs to the lifting and conveying starting position. After receiving the fourth combination signal, the second control unit also sends a stop command to control the lifting device 1 to stop, so that the cigarette pack stays at the lifting and conveying end position, so that the first transfer device 2 can transfer the cigarette pack from the lifting and conveying end position to the third conveyor belt 31, thereby facilitating the cigarette pack to enter the cigarette pack packaging production line via the third conveyor belt 31 and the fourth transfer device.

[0091] After the cigarette pack at the end of the lift and conveying process is transferred away, the second sensor may detect that there is no cigarette pack at the end of the lift and conveying process because the next cigarette pack has not yet arrived at the end of the lift and conveying process. If the first sensor detects that there is a cigarette pack at the starting position of the lift and conveying process, the first control unit will again receive the second combination signal and issue a stop command to control the second transfer device 6 to stop. The second control unit will also receive the second combination signal and issue a start command to control the lifting device 1 to start, causing the lifting device 1 to lift and convey the subsequent cigarette pack to the end of the lift and conveying process. Furthermore, if the first sensor detects that there is no cigarette pack at the starting position of the lift and conveying process, the first control unit will again receive the first combination signal and issue a start command to control the second transfer device 6 to start, causing the second transfer device 6 to operate to transport the cigarette pack at the lower opening of the transfer bin 4 horizontally to the starting position of the lift and conveying process. The second control unit, after receiving the first combination signal, will issue a stop command to control the lifting device 1 to stop, ensuring that a group of carrier assemblies 14 can be stably positioned below the starting position of the lift and conveying process, ensuring that cigarette packs are promptly replenished at the lifting device 1 and, thus, ensuring that cigarette packs reach the end of the lift and conveying process.

[0092] This forms a cycle to achieve fully automated cigarette pack conveying operations.

[0093] Furthermore, in this embodiment, the third sensor is used to detect in real time whether there are cigarette packs at the lower end opening of the transfer storage bin 4. If there are no cigarette packs, it indicates that the remaining number of cigarette packs in the transfer storage bin 4 is zero. The first control unit will issue a stop command to control the second transfer device 6 to stop after receiving the no-smok pack detection signal issued by the third sensor. The second control unit also issues a stop command to control the lifting device 1 to stop after receiving the no-smok pack detection signal issued by the third sensor, so as to suspend the transportation of cigarette packs and wait for workers to replenish cigarette packs into the transfer storage bin 4; if there are cigarette packs, it indicates that the remaining number of cigarette packs in the transfer storage bin 4 is not zero. At this time, the first control unit and the second control unit do not recognize the cigarette pack detection signal issued by the third sensor.

[0094] In addition, in this embodiment, a second transfer conveying end position is provided on the conveying stroke of the second transfer device 6, and the second transfer conveying end position overlaps with the lifting conveying starting position, so that the second transfer device 6 can directly transport the cigarette packs to the lifting conveying starting position; a first transfer conveying starting position is provided on the conveying stroke of the first transfer device 2, and the first transfer conveying starting position overlaps with the lifting conveying end position, so that the first transfer device 2 can also directly transport the cigarette packs away from the lifting conveying end position.

[0095] Furthermore, in this embodiment, the cigarette pack conveying device also includes an early warning device, which includes an audible and visual alarm light and an early warning electrical signal generating device. The audible and visual alarm light is connected to the first sensor, the second sensor, the third sensor, the first control unit, and the second control unit. The early warning electrical signal generating device is also connected to the first sensor, the second sensor, the third sensor, the first control unit, and the second control unit.

[0096] The first sensor also has a counting function. While detecting whether there are cigarette packets at the starting position of the lifting and conveying, the first sensor also counts the number of cigarette packets that appear at the starting position of the lifting and conveying. A first value is set on the early warning device. The first value is the threshold of the number of cigarette packets that appear at the starting position of the lifting and conveying, and the first value is the maximum lifting and carrying capacity of the lifting device 1. Correspondingly, during the operation of the entire cigarette packet conveying device, the statistical number of the first sensor will continue to increase. When the statistical value of the first sensor increases to equal the first value, the first sensor will send an over-value detection signal to the sound and light alarm light. The sound and light alarm light will correspondingly send a first type of early warning sound and light signal to remind the workers on duty that there is a risk of cigarette packets being blocked at the starting position of the lifting and conveying. The first sensor will also send an over-value detection signal to the early warning electric signal generating device. The early warning electric signal generating device will correspondingly send a first type of early warning electric signal to the first control unit and the second control unit. After receiving the first type of early warning electric signal, the first control unit will issue a shutdown command to control the second transfer device 6 to shut down. After receiving the first type of early warning electric signal, the second control unit will issue a start command to control the lifting device 1 to start operation, so as to reduce the number of cigarette packets carried on the lifting device 1 and further avoid cigarette packets being blocked at the starting position of the lifting and conveying.

[0097] In this embodiment, the priority of the first type of warning electrical signal is higher than the aforementioned four combination signals; after the technician manually clears the first type of warning signal, the corresponding statistical number of the first sensor is automatically cleared, the first control unit and the second control unit both resume responding to the four combination signals, and the cigarette pack conveying device resumes normal operation.

[0098] The second sensor also has a counting function. While detecting whether there are cigarette packs at the lifting and conveying terminal position, the second sensor also counts the number of cigarette packs that appear at the lifting and conveying terminal position. A second value is set on the early warning device. The first value is the threshold value of the number of cigarette packs that appear at the lifting and conveying terminal position, and the second value is the maximum transfer capacity of the first transfer device 2. Correspondingly, during the operation of the entire cigarette pack conveying device, the statistical number of the second sensor will continue to grow. When the statistical value of the second sensor grows to equal the second value, the second sensor will send an over-value detection signal to the sound and light alarm light, and the sound and light alarm light will correspondingly send a second type of early warning sound and light signal. To remind the workers on duty that there is a risk of cigarette packs being blocked at the end of the lifting and conveying, the second sensor will also send an over-value detection signal to the early warning signal generating device, and the early warning signal generating device will correspondingly send a second type of early warning signal to the first control unit and the second control unit. After receiving the second type of early warning signal, the first control unit will issue a shutdown command to control the second transfer device 6 to shut down. After receiving the second type of early warning signal, the second control unit will also issue a shutdown command to control the lifting device 1 to shut down, and the first transfer device 2 will operate normally to reduce the number of cigarette packs carried on the first transfer device 2, so as to further avoid cigarette packs being blocked at the end of the lifting and conveying.

[0099] In this embodiment, the priority of the second type of warning electrical signal is also higher than the four combination signals. After the technician manually clears the second type of warning signal, the statistical number of the second sensor is automatically cleared, and the first control unit and the second control unit both resume responding to the four combination signals, and the cigarette pack conveying device resumes normal operation.

[0100] It should be noted that, in this embodiment, when the first and second warning signals appear at the same time, the warning device will issue a fourth warning signal. The responses made by the first control unit and the second control unit when receiving the fourth warning signal are the same as the responses they each made when receiving the second warning signal, but the sound and light signals in the fourth warning signal are different from the second warning sound and light signals. Workers on duty can distinguish between the second and fourth warning signals based on the sound and light warning signals of the sound and light alarm lights, and make different responses.

[0101] In addition, when the third sensor detects that the number of cigarette packs in the transfer storage bin 4 is zero, the third sensor will also send a detection signal to the sound and light alarm light, and the sound and light alarm light will correspondingly send a third type of warning sound and light signal to remind the workers on duty to replenish the packs in the transfer storage bin 4; the third sensor will also send a detection signal to the warning electric signal sending device, and the warning electric signal generating device will correspondingly send a third type of warning electric signal to the first control unit and the second control unit. After receiving the third type of warning electric signal, the first control unit will issue a shutdown command to control the second transfer device 6 to shut down. After receiving the third type of warning electric signal, the second control unit will also issue a shutdown command to control the lifting device 1 to shut down. The cigarette pack transportation will be suspended, waiting for the workers to replenish the cigarette packs in the transfer storage bin 4.

[0102] In this embodiment, the priority of the third type of warning electrical signal is also higher than the four combination signals. After the on-duty worker has replenished the cigarette packs into the transfer storage bin 4, the worker manually clears the third type of warning signal, and the first control unit and the second control unit both resume responding to the four combination signals, and the cigarette pack conveying device resumes normal operation.

[0103] Any matters not mentioned above are applicable to the prior art.

[0104] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will appreciate that modifications may be made to the technical solutions described in the above embodiments, or that some of the technical features may be replaced with equivalents; such modifications or replacements do not deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A cigarette pack conveying method, characterized in that: A cigarette pack conveying device is used to convey cigarette packs, the cigarette pack conveying device comprising a lifting device (1), a first transfer device (2), a second transfer device (6), and a transfer storage bin (4); the lifting device (1) comprises a vertical support (11), a conveying mechanism (12), a driving component (13), and a carrying component (14); the conveying mechanism (12) is vertically arranged on the vertical support (11); the driving component (13) is used to drive the conveying mechanism (12); a plurality of carrying components (14) are arranged on the conveying mechanism (12); the carrying components (14) are used to carry cigarette packs; the first transfer device (2) is arranged on the upper part of the lifting device (1); a plurality of cigarette packs are stacked and stored in the transfer storage bin (4); the second transfer device (6) is arranged on the lower part of the lifting device (1); the cigarette pack conveying method comprises the following steps: Step 1: Place several cigarette packs in the transit storage bin (4); Step 2: Control the second transfer device (6) to transfer the cigarette packs one by one from the transfer storage bin (4) to the lower part of the lifting device (1); Step 3: Control the lifting device (1) to transport the cigarette packs located at the lower part of the lifting device (1) one by one from the lifting device to the upper part of the lifting device (1); Step 4: Control the first transfer device (2) to transport the cigarette packs located on the upper portion of the lifting device (1) to the cigarette pack packaging production line one by one; the lifting device (1) is provided with a lifting and conveying starting position at the lower portion and a lifting and conveying end position at the upper portion, the lifting and conveying starting position is further provided with a first sensor, and the lifting and conveying end position is further provided with a second sensor; A third sensor is provided in the transfer storage bin (4); The cigarette packet conveying device further comprises a first control unit and a second control unit, wherein the first control unit is used to control the operating state of the second transfer device (6), and the second control unit is used to control the operating state of the lifting device (1); In step 2, the first sensor detects in real time whether there is a cigarette pack at the starting position of the lifting and conveying, and the second sensor detects in real time whether there is a cigarette pack at the end position of the lifting and conveying; If there are no cigarette packs at the lifting and conveying starting position and the lifting and conveying end position, the first control unit controls the second transfer device (6) to start, and the second transfer device (6) transfers the cigarette packs to the lifting and conveying starting position, and the second control unit controls the lifting device (1) to stop to wait for the cigarette packs to be lifted; If there are cigarette packs at the lifting and conveying starting position but no cigarette packs at the lifting and conveying end position, the first control unit controls the second transfer device (6) to stop, and the second control unit controls the lifting device (1) to start, and the lifting device (1) lifts and transports the cigarette packs that have reached the lifting and conveying starting position to the lifting and conveying end position; In step three, the first sensor detects in real time whether there is a cigarette pack at the starting position of the lifting and conveying, and the second sensor detects in real time whether there is a cigarette pack at the end position of the lifting and conveying; If there are cigarette packs at both the lifting and conveying starting position and the lifting and conveying end position, the first control unit controls the second transfer device (6) to stop, the second control unit controls the lifting device (1) to stop, and the first transfer device (2) transfers the cigarette packs that have reached the lifting and conveying end position to supplement the cigarette pack packaging production line; If there are no cigarette packs at the lifting and conveying starting position, but there are cigarette packs at the lifting and conveying end position, the first control unit controls the second transfer device (6) to stop, the second control unit controls the lifting device (1) to stop, and the first transfer device (2) transfers the cigarette packs that have reached the lifting and conveying end position to supplement the cigarette pack packaging production line; If there are no cigarette packs at both the lifting and conveying starting position and the lifting and conveying end position, the first control unit controls the second transfer device (6) to start, the second control unit controls the lifting device (1) to stop, and the second transfer device (6) transfers the cigarette packs to the lifting and conveying starting position; If there are cigarette packs at the lifting and conveying starting position but no cigarette packs at the lifting and conveying end position, the first control unit controls the second transfer device (6) to stop, and the second control unit controls the lifting device (1) to start, and the lifting device (1) lifts and transports the cigarette packs that have reached the lifting and conveying starting position to the lifting and conveying end position; In all steps, the third sensor detects in real time whether the number of remaining cigarette packs in the transfer storage bin (4) is zero; If the number of cigarette packs remaining in the transfer storage bin (4) is zero, the first control unit controls the second transfer device (6) to stop, and the second control unit controls the lifting device (1) to stop, and the cigarette pack conveying is suspended, waiting for workers to replenish cigarette packs in the transfer storage bin (4); If the number of remaining cigarette packs in the transfer storage bin (4) is not zero, neither the first control unit nor the second control unit issues a control command.

2. The cigarette packet conveying method according to claim 1, wherein: The second transfer device (6) has a second transfer delivery end position on its delivery stroke, and the second transfer delivery end position overlaps with the lifting delivery starting position; the first transfer device (2) has a first transfer delivery starting position on its delivery stroke, and the first transfer delivery starting position overlaps with the lifting delivery end position.

3. The cigarette packet conveying method according to claim 1, wherein: The cigarette packet conveying device further includes an early warning device, which is connected to the first sensor, the second sensor, the third sensor, the first control unit, and the second control unit.

4. The cigarette packet conveying method according to claim 3, wherein: The number of cigarette packs appearing at the lifting and conveying starting position is counted, and a threshold value of the number of cigarette packs appearing at the lifting and conveying starting position is set; when the counted number of cigarette packs appearing at the lifting and conveying starting position increases to the threshold value of the number of cigarette packs appearing at the lifting and conveying starting position, the early warning device sends a first type early warning signal, the first control unit controls the second transfer device (6) to stop according to the received first type early warning signal, and the second control unit controls the lifting device (1) to start according to the received first type early warning signal.

5. The cigarette packet conveying method according to claim 3, wherein: The number of cigarette packs appearing at the end position of the lifting and conveying is counted, and a threshold value of the number of cigarette packs appearing at the end position of the lifting and conveying is set; when the counted number of cigarette packs appearing at the end position of the lifting and conveying increases to the set threshold value of the number of cigarette packs appearing at the end position of the lifting and conveying, the early warning device sends a second type of early warning signal, the first control unit controls the second transfer device (6) to stop according to the received second type of early warning signal, and the second control unit controls the lifting device (1) to stop according to the received second type of early warning signal.

6. The cigarette packet conveying method according to claim 3, wherein: The warning signal sent by the warning device includes an acoustic and optical signal and an electrical signal.

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