A single-channel-to-multi-station palletizing system and method

Abstract

The application discloses a single-channel-to-multi-station stacking system and method, belongs to the technical field of cigarette component stacking, and comprises two stacking robots, wherein three conditional cigarette conveying buffer channels are respectively configured for the No.1 stacking robot and the No.2 stacking robot, and an additional conditional cigarette backflow channel is additionally configured for the No.1 stacking robot; each brand component cigarette is provided with clear and relatively detailed stacking steps and rules, including a brand multi-channel complementation and flow control, b brand channel cooperation, and c brand station alternate operation mode, so that the application can adapt to various complex production scenes, guarantees that each brand component cigarette can be efficiently and orderly stacked, and the adaptability of the whole stacking system to different brand production demands is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cigarette production piece stacking, and more particularly to a single-channel-to-multi-station stacking system and method. BACKGROUND

[0002] In the process of stacking finished piece cigarettes into the warehouse, the finished product warehouse in the form of the past flat warehouse mostly uses a conveying line to convey the finished piece cigarette real pallets that have been completed. The conveying line is like a continuous "conveyor belt" that can continuously transport the stacked pallets according to the established route. In recent years, for the purpose of reducing the number of conveying equipment in the finished product warehouse and making the on-site environment more simple and orderly, some cigarette factories have begun to explore new warehousing methods, that is, using AGV (Automated Guided Vehicle) to replace the traditional conveying line. AGV has many different forms, such as a forked AGV, a latent AGV with a goods shelf, and a latent AGV with a telescopic fork arm. Among them, the latent AGV with a telescopic fork arm becomes a new development direction because of its small size, the ability to complete the picking and placing of goods and the carrying work without any assistance, 360-degree rotation on the spot, and small running channel. However, this kind of latent AGV has the disadvantage that the fork arm takes a long time to extend and retract when performing the picking and placing task.

[0003] In the finished product automatic warehousing area, whether the latent AGV timely performs the task of taking away the finished piece cigarette real pallets that have been completed and stacking, replenishing empty pallets to the stacking station, and replenishing empty pallet groups to the pallet stacking machine, etc. becomes a key factor affecting the efficiency of automatic warehousing of finished piece cigarettes. Especially in the high-flow operation scenario that requires frequent picking and placing, this time delay will continuously accumulate, reducing the number of pallets that can be carried into the warehouse per unit of time, slowing down the pace of the entire finished piece cigarette warehousing, and is not conducive to achieving efficient and fast warehousing operations. SUMMARY

[0004] An object of the present application is to provide a single-channel-to-multi-station stacking system and method to solve the problem of the aforementioned latent AGV having a long fork arm extension and retraction time when performing the picking and placing task, slowing down the pace of the entire finished piece cigarette warehousing, and being not conducive to achieving efficient and fast warehousing operations.

[0005] According to a first aspect of the present application, a single-channel-to-multi-station stacking system is provided, characterized in that it comprises:

[0006] two stacking robots, respectively a No. 1 stacking robot and a No. 2 stacking robot;

[0007] The conveying buffer channel is respectively configured with three condition cigarette conveying buffer channels for the first and second stacking robots, and the first stacking robot is additionally configured with a one condition cigarette backflow channel;

[0008] The plurality of stacking stations includes four stacking stations corresponding to the first stacking robot, which are respectively set as A1, A2, B1 and C1, and the four stacking stations are arranged at intervals around the first stacking robot; and four stacking stations corresponding to the second stacking robot, which are respectively set as A3, B2, B3 and C2, and the four stacking stations are arranged at intervals around the second stacking robot.

[0009] Optionally, the three condition cigarette conveying buffer channels corresponding to the first stacking robot include a first cigarette conveying buffer channel a1, a second cigarette conveying buffer channel b1 and a third cigarette conveying buffer channel c1.

[0010] The four stacking stations corresponding to the first stacking robot include A1, A2, B1 and C1, and a1 corresponds to the A1 and A2 stacking stations, b1 corresponds to the B1 stacking station, and c1 corresponds to the C1 stacking station.

[0011] The three condition cigarette conveying buffer channels corresponding to the second stacking robot include a first cigarette conveying buffer channel b2, a second cigarette conveying buffer channel a2 and a third cigarette conveying buffer channel c2, and the four stacking stations corresponding to the second stacking robot include A3, B2, B3 and C2, and b2 corresponds to the B2 and B3 stacking stations, a2 corresponds to the A3 stacking station, and c2 corresponds to the C2 stacking station.

[0012] Optionally, the single-channel multi-station stacking system further includes a warehouse management system, which allocates different brand finished cigarette pieces to different cigarette piece conveying buffer channels according to the production quantity of different brands, wherein a brand is allocated to the a1 and a2 cigarette piece conveying buffer channels, b brand is allocated to the b1 and b2 cigarette piece conveying buffer channels, and c brand is allocated to the c1 and c2 cigarette piece conveying buffer channels, wherein the production quantity of a brand is greater than that of b brand, and the production quantity of b brand is greater than that of c brand.

[0013] Optionally, the warehouse management system issues production task information to an electric control system, and the electric control system controls the finished cigarette pieces to flow into the corresponding cigarette piece conveying buffer channels.

[0014] According to a second aspect of the present application, a single-channel multi-station stacking method is provided, including the following steps:

[0015] The production plan distribution step: different brand finished cigarette pieces are distributed to different cigarette piece conveying buffer channels according to the production quantity of different brands, wherein, a brand is distributed to a1 and a2 cigarette piece conveying buffer channels, b brand is distributed to b1 and b2 cigarette piece conveying buffer channels, and c brand is distributed to c1 and c2 cigarette piece conveying buffer channels;

[0016] The different brand cigarette piece stacking step, when different brand cigarette pieces are stacked, different conveying buffer channels correspond to corresponding partial stacking stations in priority, and temporary distribution and priority stacking are performed according to the passing quantity of cigarette pieces in each channel and the lack quantity of stations.

[0017] Optionally, the different brand cigarette piece stacking step specifically includes:

[0018] When a brand cigarette pieces are stacked, a1 channel corresponds to A1 and A2 stations in priority, when A1 station is completed, a2 channel starts to receive and detect the quantity of cigarette pieces of A3 station, if a1 channel is excessive, A3 station is stacked by a2 channel; if the lack of cigarette pieces of A3 station is less than 10, priority stacking is performed, at the same time, if a2 channel is excessive, A2 station is stacked by a1 channel, a1 channel corresponds to A1 and A2 stations in priority, and a2 is a backup channel to receive cigarette pieces after a1 channel is full;

[0019] When b brand cigarette pieces are stacked, b2 channel corresponds to B2 and B3 stations in priority, after B2 station is completed, b1 channel starts to receive and detect the quantity of cigarette pieces of B1 station, if b2 channel is excessive, B1 station is stacked by b1 channel; if the lack of cigarette pieces of B1 station is less than 10, priority stacking is performed, at the same time, if b1 channel is excessive, B2 station is stacked by b2 channel, b2 channel corresponds to B2 and B3 stations in priority, and b1 is a backup channel to receive cigarette pieces after b2 is full;

[0020] When c brand cigarette pieces are stacked, c1 channel corresponds to C1 station, C1 station is transferred to C2 station after stacking, and C1 and C2 stations alternately perform stacking operation.

[0021] According to the single-channel-to-multiple-station stacking system and method of the present disclosure, the following technical effects are achieved:

[0022] The present disclosure configures two stacking robots, and each robot is allocated with a corresponding number of cigarette piece conveying buffer channels and stacking stations, so that each stacking robot can perform its own function and process different sources of cigarette pieces in an orderly manner, avoiding task allocation confusion, optimizing the overall resource allocation of the system, and improving the equipment utilization rate;

[0023] For normal production of a, b, c three different yield brands, different piece cigarette conveying buffer channels are allocated according to the yield size, and the priority of each channel is set. The conveying resources can be reasonably allocated according to the brand yield, the piece cigarette of the brand with large yield is preferentially ensured to have a more efficient conveying path, and the conveying congestion caused by the shared channels of each brand is avoided, and the overall piece cigarette conveying efficiency is improved.

[0024] Through reasonable stacking sequence arrangement, the situation that the stacking station is idle for a long time or a station is excessively stacked and congested is avoided. For example, during the stacking of the a brand, when A1 is stacked, the situation of A3 is detected in time to determine whether A2 or A3 is stacked first, so that the number of piece cigarettes of each station can be kept relatively balanced.

[0025] Other features of the present application and its advantages will become apparent in the following detailed description of exemplary embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0026] The accompanying drawings incorporated in and forming a part of the specification, illustrate embodiments of the present application and, together with the description, serve to explain the principles of the application.

[0027] Figure 1 A schematic diagram of the single-channel multi-station stacking system provided for the embodiments of the present application.

[0028] The figures are marked as follows:

[0029] a1, b1, c1, a2, b2, c2: piece cigarette conveying buffer channel; A1, A2, A3, B1, B2, B3, C1, C2: stacking station; 1: No. 1 stacking robot; 2: No. 2 stacking robot; 3: piece cigarette backflow channel. DETAILED DESCRIPTION

[0030] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. Note that the relative arrangement, numerical expressions, and values of the components and steps set forth in these embodiments are not limiting to the scope of the present application unless otherwise specifically stated.

[0031] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way limiting to the scope of the application or its applications or uses.

[0032] Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail herein, but should be considered as part of the specification, where appropriate.

[0033] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0034] This invention proposes an embodiment of a single-channel, multi-station palletizing system, specifically, as follows: Figure 1 As shown, it includes:

[0035] Two palletizing robots, designated as number 1 and number 2, are used. Both robots can perform palletizing work simultaneously, which greatly improves the overall efficiency of the palletizing operation compared to a single robot.

[0036] Conveying buffer channels: The number 1 stacking robot and the number 2 stacking robot are each equipped with 3 conditional smoke conveying buffer channels, and the number 1 stacking robot is additionally equipped with 1 conditional smoke return channel; when a return processing is required, the smoke can be returned through the return channel, effectively avoiding material waste.

[0037] Multiple palletizing stations: The number 1 palletizing robot corresponds to 4 palletizing stations, designated A1, A2, B1, and C1, which are spaced apart around the number 1 palletizing robot. Similarly, the number 2 palletizing robot corresponds to 4 palletizing stations, designated A3, B2, B3, and C2, which are also spaced apart around the number 2 palletizing robot. This spaced-out station layout around the robots makes full use of the space surrounding them, allowing palletizing operations to be carried out systematically from multiple directions. It also facilitates the operation of the robot's robotic arm and other components at each station, reducing unnecessary movement paths.

[0038] The system in this embodiment can flexibly allocate materials transported by each conveying buffer channel to the corresponding palletizing station according to different production plans, product types, and order requirements. The setting of multiple stations and multiple conveying buffer channels is equivalent to building a redundancy mechanism for the entire palletizing system. This improves the efficiency of palletizing operations from multiple dimensions.

[0039] In this embodiment of the invention, the three-condition smoke conveying buffer channel corresponding to the No. 1 stacking robot includes a first smoke conveying buffer channel a1, a second smoke conveying buffer channel b1 and a third smoke conveying buffer channel c1;

[0040] The four palletizing stations corresponding to the number 1 palletizing robot include A1, A2, B1, and C1, where a1 corresponds to palletizing stations A1 and A2, b1 corresponds to palletizing station B1, and c1 corresponds to palletizing station C1.

[0041] The three-condition cigarette conveying buffer channels corresponding to the number 2 palletizing robot include a first cigarette conveying buffer channel b2, a second cigarette conveying buffer channel a2, and a third cigarette conveying buffer channel c2. The four palletizing stations corresponding to the number 2 palletizing robot are A3, B2, B3, and C2, with b2 corresponding to B2 and B3, a2 corresponding to A3, and c2 corresponding to C2. This clear correspondence allows operators or the warehouse management system to accurately know which specific palletizing station each conveying buffer channel should lead to throughout the entire cigarette conveying, buffering, and subsequent palletizing process, facilitating orderly and precise control of material flow. The entire palletizing process can be carried out in parallel, improving overall work efficiency.

[0042] In this embodiment of the invention, the single-channel, multi-station palletizing system also includes a warehouse management system. This system allocates finished cigarette cartons of different brands to different cigarette conveying buffer channels based on the production quantity of each brand, achieving precise diversion of cigarettes of different brands during the conveying process. Specifically, brand A is allocated to conveying buffer channels a1 and a2, brand B to conveying buffer channels b1 and b2, and brand C to conveying buffer channels c1 and c2. The production quantity of brand A is greater than that of brand B, and the production quantity of brand B is greater than that of brand C. Considering the differences in production quantities among different brands, this allocation method effectively optimizes resources. Brands with larger production quantities correspond to more conveying buffer channels, which can better handle and convey larger batches of finished cigarette cartons, preventing problems such as cigarette backlog and poor conveying on the production line due to insufficient channel quantity.

[0043] In this embodiment of the invention, the warehouse management system sends production task information to the electrical control system, which then controls the flow of finished product smoke into the corresponding smoke conveying and buffering channel. The production task information includes, but is not limited to, the type, quantity, and destination of the finished product smoke. Based on this production task information, the electrical control system can then determine how to operate, ensuring that subsequent finished product smoke conveying and buffering operations are strictly executed according to the predetermined production task, thus improving the accuracy and standardization of the entire workflow.

[0044] The present invention also provides an embodiment of a single-channel palletizing method for multiple workstations, comprising the following steps:

[0045] Production planning allocation steps: Based on the production quantity of different brands, the finished cigarette packs of different brands are allocated to different cigarette pack conveying buffer channels. Specifically, brand A is allocated to cigarette pack conveying buffer channels a1 and a2, brand B is allocated to cigarette pack conveying buffer channels b1 and b2, and brand C is allocated to cigarette pack conveying buffer channels c1 and c2. This method of allocating conveying buffer channels by brand facilitates the management of quantity control, flow tracking, and production progress monitoring of cigarette packs of different brands during the production process.

[0046] The palletizing process for different brands of cigarettes involves different conveyor buffer channels that prioritize certain palletizing stations. Temporary allocation and priority palletizing are based on the throughput of cigarettes in each channel and the availability of stations. If the throughput of a particular conveyor buffer channel suddenly increases, and the corresponding priority palletizing station approaches full capacity, some cigarettes can be temporarily allocated to other relatively idle palletizing stations. This avoids the problem of cigarette accumulation and palletizing stagnation due to localized station shortages, fully utilizing all available palletizing station resources and ensuring the continuity and efficiency of the palletizing work.

[0047] In this embodiment of the invention, the stacking steps for different brands of cigarettes specifically include:

[0048] When palletizing cigarettes for brand A, channel A1 prioritizes stations A1 and A2. Once station A1 is full, channel A2 begins receiving and checking the number of cigarettes at station A3. If channel A1 is overloaded, the process is transferred to channel A2 for palletizing at station A3. If station A3 is short less than 10 cigarettes, it is prioritized for palletizing. Meanwhile, if channel A2 is overloaded, the process is transferred to channel A1 for palletizing at station A2. Channel A1 prioritizes stations A1 and A2, while channel A2 serves as a backup channel, receiving cigarettes only after channel A1 is full.

[0049] When palletizing cigarettes for brand B, channel b2 prioritizes stations B2 and B3. After station B2 is completed, channel b1 begins to receive and detect the number of cigarettes at station B1. If channel b2 is overloaded, the process is transferred to channel b1 for palletizing at station B1. If station B1 is short of fewer than 10 cigarettes, it is prioritized for palletizing. Meanwhile, if channel b1 is overloaded, the process is transferred to channel b2 for palletizing at station B2. Channel b2 prioritizes stations B2 and B3, while channel b1 serves as a backup channel, receiving cigarettes after channel b2 is full.

[0050] When palletizing cigarette packs for brand C, channel C1 corresponds to station C1. After palletizing at station C1, the packs are moved to station C2, and the palletizing operations alternate between stations C1 and C2. It should be noted that in actual production, occasional shortages of cigarette packs may occur. By prioritizing palletizing, the number of cigarette packs at each station can be replenished as quickly as possible, maintaining the continuity of palletizing, reducing station downtime due to shortages, and improving palletizing efficiency.

[0051] In yet another embodiment of the invention, such as Figure 1 The single-channel palletizing method for multiple workstations includes the following process, specifically:

[0052] Step 1: After receiving the daily production plan, operators allocate finished cigarette packs to different cigarette pack conveying buffer channels based on the production volume of different brands in the management system. Brand A, with the highest production volume, is assigned to conveying buffer channels a1 and a2; brand B, with moderate production volume, is assigned to conveying buffer channels b1 and b2; and brand C, with the lowest production volume, is assigned to conveying buffer channels c1 and c2. The management system then transmits the task information to the electrical control system, which controls the flow of finished cigarette packs into the different conveying buffer channels.

[0053] Step 2: When producing brand A cigarettes, the A1 cigarette conveying buffer channel prioritizes receiving brand A cigarettes, corresponding to palletizing stations A1 and A2. After palletizing at station A1, the A2 cigarette conveying buffer channel receives brand A cigarettes. Simultaneously, it checks the number of cigarettes on the full pallet at station A3 (if the A1 cigarette conveying buffer channel has an excess of brand A cigarettes, it is temporarily allocated to the A2 cigarette conveying buffer channel, and palletizing is performed at station A3). If the number of cigarettes on the full pallet at station A3 is less than 10, then... First, palletize station A3 (if there are too many brand A cigarettes input into the a2 cigarette conveying buffer channel, they are temporarily assigned to the a1 cigarette conveying buffer channel, and palletizing continues at station A2). After palletizing at station A3, palletizing at station A2 begins. After palletizing at station A2, the a2 cigarette conveying buffer channel receives brand A cigarettes and simultaneously checks the number of cigarettes on the full pallet at station A3. If the number of cigarettes missing from the full pallet at station A3 is less than 10, station A3 is prioritized for palletizing, while palletizing at station A1 continues simultaneously. The a1 cigarette conveying buffer channel prioritizes palletizing stations A1 and A2, while the a2 cigarette conveying buffer channel is a backup channel. Once the a1 cigarette conveying buffer channel is full, cigarettes are input into the a2 cigarette conveying buffer channel.

[0054] When producing brand B cigarettes, the B2 cigarette conveying buffer channel prioritizes receiving brand B cigarettes, corresponding to palletizing stations B2 and B3. After palletizing at station B2, the B1 cigarette conveying buffer channel receives brand B cigarettes, while simultaneously checking the number of cigarettes on the full pallet at station B1 (if there is an excess of brand B cigarettes input into the B2 cigarette conveying buffer channel, they are temporarily allocated to the B1 cigarette conveying buffer channel for palletizing at station B1). If the number of cigarettes on the full pallet at station B1 is less than 10, priority is given to... Palletizing station B1 (if there are too many brand B cigarettes input into the b1 cigarette conveying buffer channel, they are temporarily assigned to the b2 cigarette conveying buffer channel and palletized at station B2). After palletizing at station B1, palletizing at station B3 begins. After palletizing at station B3, the b1 cigarette conveying buffer channel receives brand B cigarettes and simultaneously checks the number of cigarettes on the full pallet at station B1. If the number of cigarettes missing from the full pallet at station B1 is less than 10, station B1 is prioritized for palletizing, and station B2 is also palletized simultaneously. The b2 cigarette conveying buffer channel prioritizes palletizing stations B2 and B3, while the b1 cigarette conveying buffer channel is a backup channel. Once the b2 cigarette conveying channel is full, cigarettes are input into the b1 cigarette conveying buffer channel. The b1 cigarette conveying channel is mostly empty.

[0055] When producing cigarettes of brand C, the conveying channel for cigarettes C1 corresponds to the palletizing station C1, and the conveying channel for cigarettes C2 corresponds to the palletizing station C2. After palletizing at station C1 is completed, palletizing at station C2 is carried out, and C1 and C2 are used alternately for palletizing.

[0056] In summary, the separate palletizing steps for each brand allow the entire palletizing system to flexibly handle various situations encountered in actual production for different brands of cigarettes, such as changes in flow rate across different channels, cigarette shortages at workstations, and varying palletizing rhythm requirements. Whether it's the complementary use of multiple channels and flow control for brand A, similar channel collaboration for brand B, or alternating workstation operations for brand C, the system can adapt to various complex production scenarios, ensuring that all brands of cigarettes can be palletized efficiently and orderly. Even if local fluctuations or changes occur during production, the system can quickly adjust to maintain stable overall production operation.

[0057] The above description of the structure, features, and effects of the present invention is based on the embodiments shown in the figures. However, the above are only preferred embodiments of the present invention. It should be noted that the technical features involved in the above embodiments and their preferred methods can be reasonably combined and matched by those skilled in the art to form a variety of equivalent solutions without departing from or changing the design concept and technical effects of the present invention. Therefore, the present invention is not limited to the scope of implementation shown in the figures. Any changes made in accordance with the concept of the present invention, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and figures, should be within the protection scope of the present invention.

Claims

1. A single lane to multi-station palletizing method based on a single lane to multi-station palletizing system, characterized in that, The stacking system comprises: Two stacking robots, namely a first stacking robot and a second stacking robot; A conveying buffer channel: a 3-condition cigarette conveying buffer channel is configured for the first stacking robot and the second stacking robot, and a 1-condition cigarette backflow channel is additionally configured for the first stacking robot; A plurality of stacking stations: the first stacking robot corresponds to four stacking stations, which are respectively set as A1, A2, B1, and C1, and the four stacking stations are arranged at intervals around the first stacking robot; the second stacking robot corresponds to four stacking stations, which are respectively set as A3, B2, B3, and C2, and the four stacking stations are arranged at intervals around the second stacking robot; The 3-condition cigarette conveying buffer channel corresponding to the first stacking robot comprises a first cigarette conveying buffer channel a1, a second cigarette conveying buffer channel b1, and a third cigarette conveying buffer channel c1; The four stacking stations corresponding to the first stacking robot comprise A1, A2, B1, and C1, and a1 corresponds to the A1 and A2 stacking stations, b1 corresponds to the B1 stacking station, and c1 corresponds to the C1 stacking station; The 3-condition cigarette conveying buffer channel corresponding to the second stacking robot comprises a first cigarette conveying buffer channel b2, a second cigarette conveying buffer channel a2, and a third cigarette conveying buffer channel c2, and the four stacking stations corresponding to the second stacking robot comprise A3, B2, B3, and C2, and b2 corresponds to the B2 and B3 stacking stations, a2 corresponds to the A3 stacking station, and c2 corresponds to the C2 stacking station; The stacking system further comprises a warehouse management system, which allocates different brand finished cigarette pieces to different cigarette piece conveying buffer channels according to the production quantity of different brands, specifically: the warehouse management system issues production task information to an electric control system, and the electric control system controls the finished cigarette pieces to flow into the corresponding cigarette piece conveying buffer channels; The stacking method comprises the following steps: A production plan allocation step: different brand finished cigarette pieces are allocated to different cigarette piece conveying buffer channels according to the production quantity of different brands, wherein a brand is allocated to a1 and a2 cigarette piece conveying buffer channels, b brand is allocated to b1 and b2 cigarette piece conveying buffer channels, and c brand is allocated to c1 and c2 cigarette piece conveying buffer channels; wherein the production quantity of a brand is greater than that of b brand, and the production quantity of b brand is greater than that of c brand; A different brand cigarette piece stacking step: when different brand cigarette pieces are stacked, different conveying buffer channels correspond to corresponding partial stacking stations in priority, and temporary allocation and priority stacking are performed according to the throughput of the cigarette pieces in each channel and the lack of the stations, specifically including: When the a brand piece of cigarette is stacked, the a1 channel corresponds to the A1 and A2 stations preferentially, when the A1 station is completed, the a2 channel starts to receive and detect the piece of cigarette quantity of the A3 station, if the a1 channel is excessive, it is transferred to the a2 channel to stack the A3 station; if the A3 station is short of cigarettes less than 10 pieces, it is preferentially stacked, at the same time, if the a2 channel is excessive, it is transferred to the a1 channel to stack the A2 station, the a1 channel corresponds to the A1 and A2 stations preferentially, and the a2 channel is a backup channel to receive the piece of cigarette after the a1 channel is full; When the b brand piece of cigarette is stacked, the b2 channel corresponds to the B2 and B3 stations preferentially, when the B2 station is completed, the b1 channel starts to receive and detect the piece of cigarette quantity of the B1 station, if the b2 channel is excessive, it is transferred to the b1 channel to stack the B1 station; if the B1 station is short of cigarettes less than 10 pieces, it is preferentially stacked, at the same time, if the b1 channel is excessive, it is transferred to the b2 channel to stack the B2 station, the b2 channel corresponds to the B2 and B3 stations preferentially, and the b1 channel is a backup channel to receive the piece of cigarette after the b2 channel is full; When the c brand piece of cigarette is stacked, the c1 channel corresponds to the C1 station, the C1 station is transferred to the C2 station after being stacked, and the C1 and C2 stations are alternately stacked.

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