Cigarette packet temporary storage device

Abstract

The utility model provides a tobacco bale temporary storage device which comprises a conveying belt extending in the first direction, the input end of the conveying belt is communicated with the output end of a tobacco bale channel, the output end of the conveying belt is communicated with the input end of a downstream machine, and the conveying belt is used for conveying tobacco bales in the first direction; the opening of the shaft barrel receding opening faces upwards. The conveying belt is arranged in the receding opening, and the upper surface of the conveying belt is flush with all the edges of the receding opening. The buffering barrel is connected to the outer portion of the shaft barrel in a sleeving mode and can rotate around the shaft barrel, and a plurality of buffering through grooves extending in the first direction are formed in the inner wall of the buffering barrel; the buffering through groove penetrates through the buffering barrel in the first direction, and an opening of the buffering through groove faces the outer circumferential face of the shaft barrel. When the buffering barrel rotates, the buffering through grooves can sequentially pass through the upper portion of the receding opening; and when the temporary storage through groove above the conveying belt leaves the avoiding opening, the cigarette packets in the temporary storage through groove are carried to leave the conveying belt. The packaging machine can prevent the production efficiency from being influenced when the packaging machine is shut down.

Description

Technical Field

[0001] This utility model relates to the field of tobacco pack conveying technology, and in particular to a tobacco pack buffer device. Background Technology

[0002] The ZB416 high-speed packaging machine includes an upstream machine and a downstream machine. The upstream machine packages cigarettes inside label paper to form cigarette packs, which are then conveyed to the downstream machine via a cigarette pack conveyor. The downstream machine wraps the cigarette packs with transparent paper. In existing technology, when the downstream machine stops for material replacement or maintenance, the upstream machine automatically reduces its speed to 50 packs per minute. Once the cigarette pack conveyor is full, the upstream machine automatically stops, which affects its production efficiency. Conversely, when the upstream machine is undergoing material replacement or maintenance, the conveyor cannot supply enough cigarette packs to the downstream machine, causing the downstream machine to stop as well, which also affects its production efficiency. Utility Model Content

[0003] The purpose of this invention is to solve the problem of reduced production efficiency caused by packaging machine downtime. This invention provides a cigarette pack buffer device that can prevent production efficiency from being affected when the packaging machine stops.

[0004] To address the aforementioned technical problems, this utility model provides a cigarette pack buffer device for buffering cigarette packs output from a cigarette pack channel located between an upstream machine and a downstream machine. The cigarette pack buffer device includes:

[0005] A conveyor belt extends along a first direction, with its input end connected to the output end of the tobacco pack channel and its output end connected to the input end of the downstream machine. The conveyor belt is used to transport tobacco packs along the first direction.

[0006] The shaft cylinder has its axis parallel to the first direction. The outer circumference of the shaft cylinder is provided with a relief opening that runs through both ends along the first direction, and the opening of the relief opening faces upward. The conveyor belt is located inside the relief opening, and the upper surface of the conveyor belt is flush with each edge of the relief opening.

[0007] A buffer cylinder is fitted around the outside of a shaft cylinder and can rotate around the shaft cylinder. The inner wall of the buffer cylinder is provided with multiple buffer channels extending along a first direction. The buffer channels penetrate the buffer cylinder along the first direction, and the openings of the buffer channels face the outer circumferential surface of the shaft cylinder. When the buffer cylinder rotates, each buffer channel can pass above the clearance port in sequence. The cigarette packs output from the cigarette pack channel can be fed into the buffer channels above the conveyor belt through the conveyor belt. When the buffer channels above the conveyor belt leave the clearance port, they carry the cigarette packs inside them away from the conveyor belt.

[0008] Optionally, the distance between the bottom wall of the buffer channel and the outer circumferential surface of the shaft cylinder is greater than the radial dimension of the cigarette pack along the shaft cylinder, and the distance between the end face of the opening of the buffer channel and the outer circumferential surface of the shaft cylinder is less than the radial dimension of the cigarette pack along the shaft cylinder.

[0009] Optionally, the buffer cylinder includes:

[0010] Multiple connecting rings, each connected ring being spaced apart along a first direction;

[0011] Multiple channel steels extend along a first direction, and each channel steel has a U-shaped cross-section. The buffer channel is the internal cavity of the channel steel. The outer bottom wall of each channel steel is connected to the inner circumferential surface of the connecting ring, and each channel steel is evenly distributed along the circumference of the connecting ring.

[0012] Optionally, the cigarette pack buffer device includes a frame, a shaft cylinder is fixedly connected to the frame, and connecting plates are provided at both ends of the frame along the first direction. Connecting rings located at both ends of the buffer cylinder are sleeved on the connecting plates, and bearings are provided between the connecting rings and the connecting plates.

[0013] Optionally, a belt conveyor, including a conveyor belt, is provided inside the shaft cylinder.

[0014] Optionally, the cigarette pack buffer device further includes a drive mechanism for driving the buffer cylinder to rotate. The drive mechanism includes:

[0015] A toothed ring, which is fitted onto the outer circumferential surface of the buffer cylinder;

[0016] The drive motor is mounted on the frame;

[0017] The gear is connected to the drive end of the drive motor. The gear meshes with the gear ring, and the drive motor is used to drive the gear ring and the buffer cylinder to rotate around the shaft cylinder.

[0018] Optionally, it also includes a detection unit and a control system.

[0019] The detection unit is used to output a first signal when the buffer slot above the conveyor belt is full of cigarette packs; and to output a second signal when the buffer slot above the conveyor belt is empty.

[0020] The control system is electrically connected to the detection unit and the drive motor. The control system can receive a first signal and a second signal, and when the duration of the first signal is greater than 15 seconds, it controls the drive motor to rotate the buffer cylinder clockwise by a fixed angle; and when the duration of the second signal is greater than 15 seconds, it controls the drive motor to rotate the buffer cylinder counterclockwise by a fixed angle.

[0021] Optionally, the number of buffer channels is 20, with a fixed angle of 18 degrees. Each 18-degree rotation of the buffer cylinder can move an adjacent buffer channel above the conveyor belt.

[0022] Optionally, the detection unit includes:

[0023] The first sensor is located at the output end of the tobacco pack channel. When the tobacco pack passes through the first sensor, the first sensor outputs a first signal, which is a high-level signal.

[0024] The second sensor is mounted on the frame and faces the output end of the conveyor belt. When there is no smoke pack at the detection end of the second sensor, it outputs a second signal, which is a low-level signal.

[0025] Optionally, the control system includes:

[0026] The processing unit is electrically connected to the upstream machine, the downstream machine, the first sensor, and the second sensor. The processing unit includes a timer. The processing unit is used to receive the first signal or the second signal, calculate the duration of the first signal or the second signal, and control the drive motor to run when the duration of the first signal or the second signal is greater than 15 seconds.

[0027] The first counter is electrically connected to the processing unit. The first counter is used to count the number of times the buffer cylinder rotates clockwise. When the buffer cylinder rotates clockwise once, the first counter increments by 1. When the count of the first counter is equal to 20, the processing unit controls the upstream machine to stop.

[0028] The second counter is electrically connected to the processing unit. The second counter is used to count the number of times the buffer cylinder rotates counterclockwise. When the buffer cylinder rotates counterclockwise once, the second counter counts down by 1. When the count of the second counter is equal to 0, the processing unit controls the downstream machine to stop.

[0029] Compared with the prior art, this utility model has the following beneficial effects:

[0030] This invention facilitates the transport of cigarette packs to a buffer device by installing a conveyor belt between the cigarette pack channel and the downstream machine, with the conveyor belt passing through the buffer device. A clearance opening is provided on the shaft cylinder, with the upper surface of the conveyor belt flush with the edge of the clearance opening, allowing the buffer cylinder to move the cigarette packs circumferentially along the shaft cylinder, enabling the cigarette packs to leave the conveyor belt or move onto it. A buffer groove is provided inside the buffer cylinder, forming a space for storing cigarette packs when it and the outer circumference of the shaft cylinder are aligned. As the buffer cylinder rotates around the shaft cylinder, it carries the stored cigarette packs around the shaft cylinder. When the buffer groove moves to the clearance opening, it connects to the input end of the cigarette pack channel and the downstream machine, facilitating the input of cigarette packs into the buffer groove and / or the output of cigarette packs downstream. By installing a buffer device between the cigarette pack channel and the downstream machine, cigarette packs produced by the upstream machine can be buffered when the downstream machine stops, and cigarette packs in the buffer device can be transported to the downstream machine when the upstream machine stops, thus avoiding reduced production efficiency caused by simultaneous shutdowns of both the upstream and downstream machines. Attached Figure Description

[0031] Figure 1This diagram shows a structural view of a caching device provided in an embodiment of the present invention;

[0032] Figure 2 This is a cross-sectional view of a caching device provided in an embodiment of the present invention.

[0033] Figure label:

[0034] 1. Tobacco pack channel, 2. Tobacco pack, 3. Bottom wall, 4. Conveyor belt, 5. Shaft cylinder, 6. Clearance port, 7. Buffer cylinder, 8. Buffer channel, 9. Connecting ring, 10. Channel steel, 11. Frame, 12. Connecting plate, 13. Drive mechanism, 14. Gear ring, 15. Gear, 16. Drive motor, 17. First sensor, 18. Second sensor. Detailed Implementation

[0035] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0036] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0037] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0038] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0039] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0040] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0041] This utility model provides a cigarette pack buffer device for buffering cigarette packs 2 output from cigarette pack channel 1, such as... Figure 1 and Figure 2 As shown, the tobacco package channel 1 is located between the upstream and downstream machines, and the tobacco package buffer device includes a conveyor belt 4, a shaft cylinder 5, and a buffer cylinder 7. The conveyor belt 4 runs along the first direction ( Figure 1 Extending in the X direction, the input end of the conveyor belt 4 is connected to the output end of the cigarette pack channel 1, and the output end of the conveyor belt 4 is connected to the input end of the downstream machine. The conveyor belt 4 is used to convey the cigarette pack 2 along the first direction. The axis of the shaft cylinder 5 is parallel to the first direction. The outer circumference of the shaft cylinder 5 is provided with a relief opening 6 that runs through both ends along the first direction, and the opening of the relief opening 6 faces upward. The conveyor belt 4 is located inside the relief opening 6, and the upper surface of the conveyor belt 4 is flush with each edge of the relief opening 6. The buffer cylinder 7 is sleeved on the outside of the shaft cylinder 5 and can rotate around the shaft cylinder 5. The inner wall of the buffer cylinder 7 is provided with a plurality of buffer channels 8 extending along the first direction. The buffer channels 8 penetrate the buffer cylinder 7 along the first direction, and the opening of the buffer channels 8 faces the outer circumferential surface of the shaft cylinder 5. When the buffer cylinder 7 rotates, each buffer channel 8 can pass above the clearance port 6 in sequence. The cigarette pack 2 output from the cigarette pack channel 1 can be input into the buffer channel 8 above the conveyor belt 4 through the conveyor belt 4. When the buffer channel 8 above the conveyor belt 4 leaves the clearance port 6, it carries the cigarette pack 2 inside it away from the conveyor belt 4.

[0042] By adopting the above technical solution, a conveyor belt 4 is set between the cigarette pack channel 1 and the downstream machine, and the conveyor belt 4 passes through the buffer device, which facilitates the conveying of cigarette packs 2 into the buffer device. A clearance opening 6 is provided on the shaft cylinder 5, and the upper surface of the conveyor belt 4 is flush with the edge of the clearance opening 6, which facilitates the movement of the cigarette packs 2 in the buffer cylinder 7 along the circumference of the shaft cylinder 5. This facilitates the movement of the cigarette packs 2 away from the conveyor belt 4 when buffering them, and the movement of the cigarette packs 2 in the buffer cylinder 7 onto the conveyor belt 4 when outputting them to the downstream machine. A buffer groove 8 is provided inside the buffer cylinder 7, which, together with the outer circumference of the shaft cylinder 5, forms a space capable of storing the cigarette packs 2. When the buffer cylinder 7 rotates around the shaft cylinder 5, it can carry the stored cigarette packs 2 and rotate around the circumference of the shaft cylinder 5. When the buffer trough 8 moves below the clearance port 6, it connects with the input end of the cigarette pack channel 1 and the downstream machine. The buffer trough 8 and the upper surface of the conveyor belt 4 form a barrier to facilitate the input and / or output of cigarette packs 2 downstream. By setting a buffer device between the cigarette pack channel 1 and the downstream machine, the cigarette packs 2 produced by the upstream machine can be buffered in the buffer cylinder 7 when the downstream machine stops, and the cigarette packs 2 in the buffer cylinder 7 can be transported to the downstream machine when the upstream machine stops, thereby avoiding the reduction in production efficiency caused by the simultaneous shutdown of the upstream and downstream machines.

[0043] The working principle of the caching device provided in this application is as follows:

[0044] When the downstream machine stops, the cigarette packs 2 produced by the upstream machine cannot be consumed. Cigarette packs 2 enter the conveyor belt 4 from the output end of the cigarette pack channel 1 and are located inside the buffer trough 8 above the conveyor belt 4. Since the output end of the conveyor belt 4 cannot output cigarette packs 2 to the downstream machine, cigarette packs 2 accumulate on the conveyor belt 4 until it is full. Subsequently, the buffer cylinder 7 rotates, moving the cigarette packs 2 on the conveyor belt 4 to the area between the outer circumference of the shaft cylinder 5 and the buffer cylinder 7 for buffering. The rotation of the buffer cylinder 7 also drives the buffered cigarette packs 2 to move circumferentially along the shaft cylinder 5. When the upstream machine stops, cigarette packs 2 cannot be conveyed to the downstream machine. By rotating the buffer cylinder 7, the cigarette packs 2 between the buffer trough 8 and the outer circumference of the shaft cylinder 5 can be moved onto the conveyor belt 4, and the conveyor belt 4 conveys the cigarette packs 2 to the downstream machine to replenish them.

[0045] Furthermore, such as Figure 2 As shown, the distance between the bottom wall 3 of the buffer channel 8 (i.e., the inner wall of the buffer channel facing the shaft cylinder 5) and the outer circumferential surface of the shaft cylinder 5 (e.g., the distance between the bottom wall 3 of the buffer channel 8 and the outer circumferential surface of the shaft cylinder 5) is (e.g.) Figure 2 The dimension L1 shown in the figure is larger than the radial dimension of the cigarette pack 2 along the shaft cylinder 5, so that the cigarette pack 2 can be stored in the buffer slot 8. Furthermore, the distance between the end face of the opening of the buffer slot 8 and the outer circumferential surface of the shaft cylinder 5 (as shown in the figure) is greater than the radial dimension of the cigarette pack 2 along the shaft cylinder 5. Figure 2The dimension L2 shown in the figure is smaller than the radial dimension of the cigarette pack 2 along the shaft cylinder 5, to prevent the cigarette pack 2 from coming out of the buffer slot 8 along the circumference of the shaft cylinder 5.

[0046] Furthermore, such as Figure 2 As shown, the buffer cylinder 7 includes multiple connecting rings 9 and multiple channel steels 10. The connecting rings 9 are spaced apart along a first direction; each channel steel 10 extends along the first direction, and each channel steel 10 has a U-shaped cross-section. The buffer through-slot 8 is the internal cavity of the channel steel 10; the outer bottom wall 3 of each channel steel 10 (i.e., the outer wall opposite to the bottom wall 3 of the buffer through-slot 8) is connected to the inner circumferential surface of the connecting ring 9, and the channel steels 10 are evenly distributed along the circumference of the connecting ring 9 to form multiple sequentially arranged buffer through-slots 8.

[0047] Furthermore, such as Figure 1 As shown, the cigarette pack buffer device includes a frame 11, a shaft cylinder 5 fixedly connected to the frame 11, and connecting plates 12 at both ends of the frame 11 along a first direction. The shaft cylinder 5 is located between the two connecting plates 12, and the axis of the shaft cylinder 5 coincides with the axis of the connecting plates 12. Connecting rings 9 located at both ends of the buffer cylinder 7 are sleeved on the connecting plates 12, and bearings are provided between the connecting rings 9 and the connecting plates 12, allowing the buffer cylinder 7 to rotate around the shaft cylinder 5.

[0048] Furthermore, a belt conveyor is provided inside the shaft cylinder 5. The belt conveyor includes a conveyor belt 4. The belt conveyor is connected to the inner wall of the shaft cylinder 5 to define the relative position of the conveyor belt 4 and the shaft cylinder 5.

[0049] Furthermore, such as Figure 1 As shown, the cigarette pack buffer device also includes a drive mechanism 13, which drives the buffer cylinder 7 to rotate. The drive mechanism 13 includes a gear ring 14, a drive motor 16, and a gear 15. The gear ring 14 is sleeved on the outer circumferential surface of the buffer cylinder 7. The drive motor 16 is mounted on the frame 11. The gear 15 is connected to the drive end of the drive motor 16, and the gear 15 meshes with the gear ring 14. The drive motor 16 drives the gear ring 14 and the buffer cylinder 7 to rotate around the shaft cylinder 5.

[0050] Furthermore, the cigarette pack buffer device also includes a detection unit and a control system. The detection unit outputs a first signal when the buffer trough 8 above the conveyor belt 4 is full of cigarette packs 2, and outputs a second signal when the cigarette packs 2 in the buffer trough 8 above the conveyor belt 4 are emptied. The control system is electrically connected to the detection unit and the drive motor 16. The control system can receive the first and second signals, and when the duration of the first signal is greater than 15 seconds, it controls the drive motor 16 to rotate the buffer cylinder 7 clockwise by a fixed angle to move the cigarette packs 2 on the conveyor belt 4 into the area between the outer circumference of the shaft cylinder 5 and the buffer cylinder 7; and when the duration of the second signal is greater than 15 seconds, it controls the drive motor 16 to rotate the buffer cylinder 7 counterclockwise by a fixed angle to move the cigarette packs 2 in the area between the outer circumference of the shaft cylinder 5 and the buffer cylinder 7 onto the conveyor belt 4. Specifically, a first signal lasting longer than 15 seconds indicates that a pack of cigarettes 2 has remained at the output end of the cigarette pack channel 1 for more than 15 seconds, meaning that the buffer slot 8 above the conveyor belt 4 is full of cigarette packs 2, preventing subsequent packs of cigarettes 2 from moving forward at the output end of the cigarette pack channel 1. A second signal lasting longer than 15 seconds indicates that no packs of cigarettes 2 have passed through the output end of the conveyor belt 4 for more than 15 seconds, meaning that the packs of cigarettes 2 on the conveyor belt 4 have been emptied, and stored packs of cigarettes 2 need to be retrieved from other slots 8 of the buffer cylinder 7.

[0051] Furthermore, such as Figure 2 As shown, there are 20 buffer slots 8, with a fixed angle of 18 degrees. Every 18-degree rotation of the buffer cylinder 7 moves an adjacent buffer slot 8 above the conveyor belt 4. When cigarette packs 2 are fed into the buffer cylinder 7 from the conveyor belt 4, the buffer cylinder 7 rotates 18 degrees clockwise. When cigarette packs 2 are discharged from the buffer cylinder 7 to the conveyor belt 4, the buffer cylinder 7 rotates 18 degrees counterclockwise.

[0052] Furthermore, the detection unit includes a first sensor 17 and a second sensor 18. The first sensor 17 is located at the output end of the cigarette pack channel 1. When the cigarette pack 2 passes through the first sensor 17, the first sensor 17 outputs a first signal, which is a high-level signal; that is, when the cigarette pack 2 is located at the detection end of the first sensor 17, the first sensor 17 outputs a high-level signal. The second sensor 18 is located on the frame 11 and faces the output end of the conveyor belt 4. When there is no cigarette pack 2 at the detection end of the second sensor 18, it outputs a second signal, which is a low-level signal.

[0053] Furthermore, the control system includes a processing unit, a first counter, and a second counter. The processing unit is electrically connected to the upstream machine, the downstream machine, the first sensor 17, and the second sensor 18. The processing unit includes a timer and is used to receive a first signal or a second signal, calculate the duration of the first signal or the second signal, and control the drive motor 16 to run when the duration of the first signal or the second signal is greater than 15 seconds. The first counter is electrically connected to the processing unit and is used to count the number of clockwise rotations of the buffer cylinder 7. Each clockwise rotation of the buffer cylinder 7 increments the first counter by 1. When the first counter reaches 20, it indicates that the cigarette packs 2 in the buffer cylinder 7 are full and no more cigarette packs 2 can be stored. At this time, the processing unit controls the upstream machine to stop, thus ceasing production and the storage of cigarette packs 2. The second counter is electrically connected to the processing unit. The second counter is used to count the number of times the buffer cylinder 7 rotates counterclockwise. When the buffer cylinder 7 rotates counterclockwise once, the second counter counts by 1. When the count of the second counter is equal to 0, it means that the tobacco pack 2 in the buffer cylinder 7 has been emptied and cannot continue to supply tobacco pack 2 to the downstream machine. At this time, the processing unit controls the downstream machine to stop to prevent the downstream machine from running idle.

[0054] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A cigarette packet buffer device for buffering cigarette packets output from a cigarette packet lane, the cigarette packet lane being provided between an upstream machine and a downstream machine, characterized in that, The cigarette packet buffer device comprises: a conveying belt extending in a first direction, an input end of the conveying belt being connected to an output end of the cigarette packet channel, and an output end of the conveying belt being connected to an input end of the downstream machine, the conveying belt being used for conveying the cigarette packets in the first direction; a shaft cylinder, an axis of the shaft cylinder being parallel to the first direction, an outer circumferential surface of the shaft cylinder being provided with a clearance opening extending through both ends of the shaft cylinder in the first direction, and an opening of the clearance opening facing upward, the conveying belt being arranged inside the clearance opening, and an upper surface of the conveying belt being flush with each edge of the clearance opening; a buffer cylinder, the buffer cylinder being sleeved outside the shaft cylinder and being capable of rotating around the shaft cylinder, an inner wall of the buffer cylinder being provided with a plurality of buffer grooves extending in the first direction, the buffer grooves extending through the buffer cylinder in the first direction, and an opening of each buffer groove facing the outer circumferential surface of the shaft cylinder, each buffer groove being capable of passing above the clearance opening when the buffer cylinder rotates, the cigarette packets output by the cigarette packet channel being capable of being input into the buffer grooves above the conveying belt through the conveying belt, and the cigarette packets inside the buffer grooves above the conveying belt being capable of being separated from the conveying belt when the buffer grooves above the conveying belt leave the clearance opening.

2. The cigarette packet storage device according to claim 1, wherein A distance between a bottom wall of each buffer groove and the outer circumferential surface of the shaft cylinder is greater than a radial dimension of the cigarette packets along the shaft cylinder, and a distance between an end surface of the opening of each buffer groove and the outer circumferential surface of the shaft cylinder is less than the radial dimension of the cigarette packets along the shaft cylinder.

3. The cigarette packet storage device according to claim 2, wherein The buffer cylinder comprises: a plurality of connecting rings, each connecting ring being arranged at intervals in the first direction; a plurality of channel steels, each channel steel being U-shaped in cross section, and each buffer groove being an internal cavity of the channel steel, and an outer bottom wall of each channel steel being connected to an inner circumferential surface of each connecting ring, and each channel steel being arranged at intervals in a circumferential direction of each connecting ring.

4. The cigarette packet storage device according to claim 3, wherein The cigarette packet buffer device comprises a rack, the shaft cylinder being fixedly connected to the rack, the rack being provided with a connecting disc at each end in the first direction, each connecting ring at both ends of the buffer cylinder being sleeved on the connecting disc, and a bearing being arranged between each connecting ring and the connecting disc.

5. The cigarette packet storage device according to claim 4, wherein A belt conveyor is arranged in the shaft cylinder, and the belt conveyor comprises the conveying belt.

6. The cigarette packet storage device according to claim 5, wherein The cigarette packet buffer device further comprises a driving mechanism, the driving mechanism being used for driving the buffer cylinder to rotate, and the driving mechanism comprising: a tooth ring, the tooth ring being sleeved on an outer circumferential surface of the buffer cylinder; a driving motor, the driving motor being arranged on the rack; a gear, the gear being connected to a driving end of the driving motor, the gear being engaged with the tooth ring, and the driving motor being used for driving the tooth ring and the buffer cylinder to rotate around the shaft cylinder.

7. The cigarette packet storage device according to claim 6, wherein The cigarette packet buffer device further comprises a detection unit and a control system, the detection unit being used for outputting a first signal when the buffer grooves above the conveying belt are filled with the cigarette packets, and outputting a second signal when the buffer grooves above the conveying belt are empty of the cigarette packets, and the control system being used for controlling the driving mechanism to drive the buffer cylinder to rotate when the first signal is output, and controlling the driving mechanism to stop driving the buffer cylinder to rotate when the second signal is output. The control system is electrically connected with the detection unit and the driving motor, the control system can receive the first signal and the second signal, and control the driving motor to drive the buffer cylinder to rotate clockwise by a fixed angle when the duration of the first signal is greater than 15 seconds; and control the driving motor to drive the buffer cylinder to rotate counterclockwise by a fixed angle when the duration of the second signal is greater than 15 seconds.

8. The cigarette packet storage device according to claim 7, wherein The number of the buffer grooves is 20, the fixed angle is 18 degrees, and the buffer cylinder can move one adjacent buffer groove above the conveying belt every 18 degrees of rotation.

9. The tobacco bale storage device of claim 7 or 8, wherein, The detection unit comprises: A first sensor is arranged at the output end of the cigarette packet passage, and outputs the first signal when the cigarette packet passes through the first sensor, the first signal being a high-level signal; A second sensor is arranged on the rack and faces the output end of the conveying belt, and outputs the second signal when the detection end of the second sensor has no cigarette packet, the second signal being a low-level signal.

10. The cigarette packet storage device according to claim 9, wherein The control system comprises: A processing unit is electrically connected with the upstream machine, the downstream machine, the first sensor and the second sensor, the processing unit comprising a timer, the processing unit being used for receiving the first signal or the second signal, calculating the duration of the first signal or the second signal, and controlling the driving motor to operate when the duration of the first signal or the second signal is greater than 15 seconds; A first counter is electrically connected with the processing unit, the first counter being used for counting the number of clockwise rotations of the buffer cylinder; the first counter counts plus 1 when the buffer cylinder rotates clockwise once, and the processing unit controls the upstream machine to stop when the count of the first counter is equal to 20; A second counter is electrically connected with the processing unit, the second counter being used for counting the number of counterclockwise rotations of the buffer cylinder; the second counter counts minus 1 when the buffer cylinder rotates counterclockwise once, and the processing unit controls the downstream machine to stop when the count of the second counter is equal to 0.

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