Cigarette pack buffer device and cigarette pack buffer replenishment method

Abstract

The present invention discloses a cigarette pack buffering device and a cigarette pack buffering replenishment method, wherein the cigarette pack buffering device comprises a cigarette pack conveying device, a cigarette pack grabbing manipulator and a cigarette card; the cigarette pack conveying device comprises a cigarette pack access channel adapted to cigarette packs, a cigarette pack conveying belt arranged at the bottom of the cigarette pack access channel and a driving motor driving the cigarette pack conveying belt to operate; a baffle for controlling the on-off of the cigarette pack access channel is provided at the output end of the cigarette pack access channel, a cigarette pack buffering chamber for storing cigarette packs is formed on the cigarette card, and a baffle driving mechanism is provided on the cigarette pack conveying device; the cigarette pack grabbing manipulator is arranged on one side of the cigarette pack conveying device for grabbing the cigarette packs cached in the cigarette pack access channel to the cigarette pack buffering chamber for stacking and caching layer by layer. The present invention can realize online caching of cigarette packs.

Description

Technical Field

[0001] The invention belongs to the technical field of cigarettes, and in particular relates to a cigarette pack buffer device and a cigarette pack buffer replenishment method. Background Art

[0002] Cigarette packaging equipment has multiple processing links. After the cigarette pack packaging equipment is completed, it needs to be transported to the downstream strip pack packaging production link through the cigarette pack conveyor. In the actual production process, when the downstream strip pack packaging equipment fails, the entire set of packaging equipment needs to be shut down for adjustment until the faulty equipment is repaired, which greatly reduces production efficiency. Therefore, it is urgent to design a cache mechanism so that when the downstream machine fails, the upstream machine can continue to operate and cache the cigarette packs online. Summary of the invention

[0003] The technical problem to be solved by the present application is to provide a cigarette pack caching device and a cigarette pack caching replenishment method capable of caching cigarette packs online.

[0004] To achieve the above objectives, this application adopts the following technical solutions:

[0005] A cigarette pack buffer device, including a cigarette pack conveying device, a cigarette pack grabbing manipulator and a cigarette card;

[0006] The cigarette pack conveying device comprises a cigarette pack storage and access channel adapted to the cigarette pack, a cigarette pack conveying belt arranged at the bottom of the cigarette pack storage and access channel, and a driving motor for driving the cigarette pack conveying belt to operate;

[0007] The output end of the cigarette pack access channel is provided with a baffle for controlling its on and off, the cigarette card is formed with a cigarette pack buffer chamber for storing cigarette packs, and the cigarette pack conveying device is provided with a baffle driving mechanism;

[0008] The cigarette pack grabbing robot is arranged at one side of the cigarette pack conveying device and is used to grab the cigarette packs cached in the cigarette pack access channel and stack them in the cigarette pack cache chamber layer by layer.

[0009] Specifically, the cigarette packet grabbing manipulator includes a bracket, a sliding seat slidably mounted on an X-direction guide rail of the bracket, a slider slidably mounted on a Z-direction guide rail of the sliding seat, a support frame connected to the slider, and a plurality of suction cups arranged in a row on the support frame;

[0010] The bracket is provided with an X-direction driving mechanism for driving the sliding seat to slide along the X-guide rail between a first position and a second position, and the sliding seat is provided with a Z-direction driving mechanism for driving the slider to slide along the Z-guide rail;

[0011] When the sliding seat is located at the first position, the suction cup is located directly above the cigarette pack access channel, and the Z-axis driving mechanism drives the suction cup to move downward to grab the cigarette pack; when the sliding seat is located at the second position, the suction cup moves to the cigarette card position, and the suction cup releases the grabbed cigarette pack into the cigarette pack cache chamber after deflating.

[0012] Specifically, a photoelectric sensor is provided at the input end of the cigarette pack storage and access channel, and the photoelectric sensor, cigarette pack grabbing robot, cigarette pack conveying device and baffle driving mechanism are all controlled by a PLC electrical control system.

[0013] Specifically, it also includes a cigarette card conveying device, which includes a cigarette card vertical conveying channel and a cigarette card driving mechanism for driving the cigarette card to move in the cigarette card vertical conveying channel;

[0014] When the grabbing robot completes grabbing and stacking of a cigarette pack, the cigarette card is driven by the cigarette card driving mechanism to move down by one cigarette pack stacking thickness, and the cigarette card conveying device is controlled by the PLC electrical control system.

[0015] Specifically, the cigarette card driving mechanism includes Z-direction conveyor belts symmetrically and parallelly arranged on both sides of the cigarette card vertical conveying channel and a Z-direction driving motor driving the Z-direction conveyor belts to move. A number of cigarette card support plates for supporting the cigarette cards are symmetrically arranged on the inner sides of the two Z-direction conveyor belts.

[0016] Specifically, the cigarette card conveying device also includes an upper empty cigarette card conveyor belt, a lower full cigarette card conveyor belt and a cigarette card handling robot. The output end of the cigarette card vertical conveying channel is connected to the input end of the lower full cigarette card conveyor belt. The cigarette card handling robot is used to lift the cigarette cards conveyed on the upper empty cigarette card conveyor belt and place them on the cigarette card tray.

[0017] Specifically, the cigarette card vertical conveying channel has a full cigarette position and an empty cigarette position, and the distance between two adjacent cigarette card support plates on the Z-direction conveying belt is greater than the height of the cigarette card;

[0018] When the cigarette card moves to the full cigarette position, the cigarette card is full of cigarette packs, and one of the cigarette card support plates on the Z-direction conveyor belt just moves to the empty cigarette position, and the cigarette card handling robot lifts the empty cigarette card and places it on the cigarette card support plate at the empty cigarette position;

[0019] When the cigarette card moves to the empty cigarette position, one of the cigarette card support plates on the Z-direction conveyor belt just moves to the full cigarette position and is located below the lower full cigarette card conveyor belt.

[0020] Specifically, a cigarette card support plate position sensor is provided at the empty cigarette position on the cigarette card vertical conveying channel, and the cigarette card support plate position sensor is controlled by the PLC electrical control system.

[0021] Specifically, the cigarette card conveying device also includes an upper empty cigarette card conveyor belt and a lower full cigarette card conveyor belt. The output end of the cigarette card vertical conveying channel is connected to the input end of the lower full cigarette card conveyor belt. The cigarette card handling robot is used to lift the cigarette cards conveyed on the upper empty cigarette card conveyor belt and place them on the cigarette card tray of the cigarette cards.

[0022] Specifically, the cigarette card conveying device also includes upper empty cigarette card guide plates located on both sides of the upper empty cigarette card conveying belt and lower full cigarette card guide plates located on both sides of the lower full cigarette card conveying belt.

[0023] Specifically, a cigarette card baffle is provided at the bottom end of one side of the cigarette card vertical conveying channel close to the cigarette pack grabbing robot arm to prevent the cigarette pack from falling from the side open end of the cigarette card.

[0024] Specifically, the cigarette card is a box structure, and the top surface of the box structure and the side surface close to the grasping robot are open.

[0025] Specifically, the cigarette card support plate position sensor, cigarette pack grabbing robot, baffle driving mechanism, cigarette pack conveying device and cigarette card conveying device are all controlled by a PLC electrical control system.

[0026] A cigarette pack buffer replenishment method is provided, wherein a cigarette pack buffer device is installed between an upstream cigarette pack packaging device and a downstream strip pack packaging device, comprising:

[0027] Cigarette packet cache working mode:

[0028] The cigarette pack storage and retrieval robot extracts cigarette packs from the cigarette pack storage and retrieval channel and puts them into cigarette cards. The baffle blocks the cigarette packs in the cigarette pack storage and retrieval channel from being transported downstream. The Z-direction conveyor belt of the cigarette card conveying device transports the cigarette cards downward. Each time a layer of cigarette packs is loaded, the cigarette cards drop one station downward. The full cigarette card conveyor belt runs outward to transport the full cigarette packs of cigarette cards outward. The empty cigarette card conveyor belt transports the empty cigarette cards inward to the cigarette card vertical conveying channel. The cigarette card handling robot lifts the empty cigarette cards and places them on the cigarette card tray at the empty cigarette position in the cigarette card vertical conveying channel, completing the transfer of empty cigarette cards between the empty cigarette card conveyor belt and the Z-direction conveyor belt.

[0029] Cigarette pack replenishment working mode:

[0030] The cigarette pack conveyor belt of the cigarette pack storage and access channel is running, the cigarette pack storage and retrieval robot extracts cigarette packs from the cigarette cards and places them on the cigarette pack conveyor belt of the cigarette pack storage and access channel, the baffle is retracted, and the cached cigarette packs are transported downstream, and the Z-axis conveyor belt of the cigarette card conveying device transports the cigarette cards upwards. Each time a layer of cigarette packs is removed, the cigarette card rises one station, the full cigarette card conveyor belt runs inwards, and transports the full cigarette cards inwards to the cigarette card vertical conveying channel, and the empty cigarette card conveyor belt runs outwards, and transports the empty cigarette cards outwards.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] When in use, the cigarette pack caching device of the embodiment of the present application is installed between the cigarette pack packaging equipment and the strip pack packaging equipment. When the downstream strip pack packaging equipment fails, the cigarette packs can be cached without stopping the upstream cigarette pack packaging equipment. When the upstream cigarette pack packaging equipment fails, the cached cigarette packs can be sent to the downstream production line without stopping the downstream strip pack packaging equipment, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 is an axonometric view of a cigarette packet buffering device provided by an embodiment of the present invention;

[0035] Figure 2 This is a front view of a cigarette pack buffer device provided by an embodiment of the present invention;

[0036] Figure 3 It is a front view of a cigarette pack grabbing robot involved in an embodiment of the present invention;

[0037] Figure 4 is a side view of a cigarette pack grabbing robot involved in an embodiment of the present invention;

[0038] Figure 5 is a front view of a cigarette card handling robot involved in an embodiment of the present invention;

[0039] Figure 6 It is a top view of the cigarette card handling robot involved in an embodiment of the present invention. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figure 1 and Figure 2 A cigarette pack caching device includes a cigarette pack conveying device 1, a cigarette pack grabbing robot 2 and a cigarette card 3, wherein the cigarette pack conveying device 1, the cigarette pack grabbing robot 2 and the cigarette card 3 are arranged on a frame 5, wherein the cigarette pack conveying device 1 includes a cigarette pack access channel 101 adapted to the cigarette pack, a cigarette pack conveying belt 102 arranged at the bottom of the cigarette pack access channel 101 and a driving motor for driving the cigarette pack conveying belt 102 to operate.

[0042] In the embodiment of the present application, the cigarette pack conveying device 1 is arranged side by side, and the output end of the cigarette pack access channel 101 is provided with a baffle 103 for controlling its on and off. A cigarette pack cache chamber for storing cigarette packs is formed on the cigarette card 3. A baffle driving mechanism is provided on the cigarette pack conveying device 1. The baffle 103 can block or open the cigarette pack access channel 101 through the drive of the baffle driving mechanism. The cigarette pack grabbing robot 2 is arranged on one side of the cigarette pack conveying device 1 for grabbing the cigarette packs cached in the cigarette pack access channel 101 and stacking and caching them layer by layer in the cigarette pack cache chamber.

[0043] See also Figure 3 and Figure 4 Specifically, the cigarette pack grabbing robot 2 includes a bracket 201, a sliding seat 202 slidably mounted on the X-guide rail of the bracket 201, a slider 203 slidably mounted on the Z-guide rail of the sliding seat 202, a support frame 204 connected to the slider 203, and a plurality of suction cups 205 arranged in a row on the support frame 204; the bracket 201 is provided with an X-direction driving mechanism 206 for driving the sliding seat 202 to slide along the X-guide rail between a first position and a second position, and the sliding seat 202 is provided with a Z-direction driving mechanism 207 for driving the slider 203 to slide along the Z-guide rail. When the sliding seat 202 is located at the first position, the suction cup 205 is located directly above the cigarette pack access channel 101, and the Z-direction driving mechanism 207 drives the suction cup 205 to move downward to grasp the cigarette pack; when the sliding seat 202 is located at the second position, the suction cup 205 moves to the position of the cigarette card 3, and the suction cup 205 releases the grabbed cigarette pack into the cigarette pack buffer chamber after being deflated. The X-axis driving mechanism 206 adopts a linear module driven by a servo motor and a lead screw, and the Z-axis driving mechanism 207 adopts a cylinder.

[0044] In actual design, the cigarette pack grabbing manipulator 2 can move 26 packs of cigarettes from the belt to the cigarette card 3 at one time, or it can move them from the cigarette card 3 to the belt. The manipulator is a coordinate two-degree-of-freedom manipulator. The horizontal movement adopts a linear module driven by a servo motor and a lead screw. The vertical movement adopts a cylinder drive due to the short lifting distance. The cylinder pushes the connecting block installed on the guide rail slider 203 to achieve up and down movement, and the end of the cylinder is clamped in the U-shaped step groove of the cylinder connecting seat through a connector with an inner hole M10. The end grabbing component of the cigarette pack adopts a vacuum suction cup 205 to absorb, and each time 26 packs of cigarettes are sucked, the extended arm is connected to the quick connector mounting plate through a right angle seat, 13 quick connectors (four ports) are installed on the top, and the bottom is connected to the suction cup 205 mounting plate through a connecting block. 26 groups of suction cups 205 are neatly arranged at intervals of 24mm on the suction cup 205 mounting plate, and each group of 2 suction cups 205 (50mm distance) is used to absorb a pack of cigarettes.

[0045] Specifically, a photoelectric sensor (not shown in the figure) is provided at the input end of the cigarette pack access channel 101. The photoelectric sensor, the cigarette pack grabbing robot 2, the cigarette pack conveying device and the baffle driving mechanism are all electrically connected to the PLC electrical control system. When the number of cigarette packs in the cigarette pack access channel 101 reaches 26 packs, the cigarette packs block the photoelectric sensor for a long time, and the photoelectric sensor is triggered and feeds back a signal to the cigarette pack grabbing robot 2. The cigarette pack grabbing robot 2 grabs the cigarette packs cached in the cigarette pack access channel 101 to the cigarette card 3 cache, completing a grabbing and caching of the cigarette packs in the cigarette pack access channel 101.

[0046] See also Figure 1 and Figure 2 The cigarette pack caching device also includes a cigarette card conveying device 4, which includes a cigarette card vertical conveying channel 401 and a cigarette card driving mechanism for driving the cigarette card 3 to move in the cigarette card vertical conveying channel 401. After the grabbing robot completes the grabbing and stacking of a cigarette pack, each time the suction cup 205 completes an air suction + air release action, the PLC electrical control system of the cigarette pack caching device controls the cigarette card driving mechanism to drive the cigarette card 3 to move down one cigarette pack stacking thickness.

[0047] It can be understood that the cigarette card driving mechanism includes Z-direction conveyor belts 402 symmetrically and parallelly arranged on both sides of the cigarette card vertical conveying channel 401 and a Z-direction driving motor that drives the Z-direction conveyor belts 402 to move, and a number of cigarette card support plates 403 for supporting cigarette cards 3 are symmetrically arranged on the inner sides of the two Z-direction conveyor belts 402.

[0048] The cigarette card conveying device 4 can also include an upper empty cigarette card conveyor belt 404, a lower full cigarette card conveyor belt 405 (horizontal belt) and a cigarette card handling robot 406. The output end of the cigarette card vertical conveying channel is connected to the input end of the lower full cigarette card conveyor belt 405. The cigarette card handling robot 406 is used to lift the cigarette card 3 conveyed on the upper empty cigarette card conveyor belt 404 and place it on the cigarette card support plate 403 of the cigarette card 3.

[0049] See also Figure 1 and Figure 2 The cigarette card vertical conveying channel 401 has a full cigarette position and an empty cigarette position. The distance between two adjacent cigarette card support plates 403 on the Z-direction conveyor belt 402 is greater than the height of the cigarette card 3. When the cigarette card 3 runs to the full cigarette position, the cigarette card 3 is full of cigarette packs, and one of the cigarette card support plates 403 on the Z-direction conveyor belt 402 just runs to the empty cigarette position, and the cigarette card handling robot 406 lifts the empty cigarette card 3 and places it on the cigarette card support plate 403 at the empty cigarette position; when the cigarette card 3 runs to the empty cigarette position, one of the cigarette card support plates 403 on the Z-direction conveyor belt 402 just runs to the full cigarette position and is located below the lower full cigarette card conveyor belt 405, and the cigarette card 3 can slide smoothly from the lower full cigarette card conveyor belt 405 to between the two relatively arranged Z-direction conveyor belts 402, and the cigarette card 3 can be lifted when the cigarette card support plate 403 conflicts with the cigarette card 3 when moving upward on the Z-direction conveyor belt 402.

[0050] See also Figure 5 and Figure 6 The cigarette card handling robot is a coordinate three-degree-of-freedom robot. It can smoothly transport the empty cigarette cards 3 on the upper empty cigarette card conveyor belt 404 (horizontal belt) to the cigarette card support plate 403 of the Z-direction conveyor belt 402, and can also transport the empty cigarette cards 3 from the Z-direction conveyor belt 402 to the horizontal belt. The front-to-back movement adopts a servo motor to drive the linear module 6 of the lead screw, which is connected to the rectangular frame through the bottom plate and the L-shaped side plate. Since the up and down lifting distance and the horizontal movement distance are small, the cylinder drive method is adopted. The horizontal cylinder 7 is connected to the slide 8 on the linear module 6 through the mounting plate. The piston rod of the horizontal cylinder 7 is equipped with a vertical cylinder 9 through the vertical cylinder back plate. The vertical cylinder 9 is connected to the fork 10 through the L-shaped push plate. The hook groove 301 of the cigarette card 3 is hung by the extended part on the fork 10 to transport the cigarette card 3.

[0051] The upper empty cigarette card conveyor belt 404 is mainly used to convey the empty cigarette cards 3 to one side close to the vertical conveying channel for cigarette cards, and the servo motor drives the driving shaft to rotate through the transmission of the synchronous belt to make the upper empty cigarette card conveyor belt 404 on the other side work. Upper empty cigarette card 3 guide plates are arranged in parallel on both sides of the upper empty cigarette card conveyor belt 404, and the two upper empty cigarette card 3 guide plates are connected by two cross beams, and the upper empty cigarette card 3 guide plates on one side are connected to the rectangular tube through a supporting flange, and a guide strip is installed on the inner side of the rectangular tube to ensure smooth transportation of the cigarette cards 3 and avoid tipping. Baffles are arranged on both sides of the upper empty cigarette card conveyor belt 404 on the upper empty cigarette card 3 guide plates to ensure the working range of the cigarette cards 3, and 10 cigarette cards 3 can be stored on the upper empty cigarette card conveyor belt 404 between the baffles.

[0052] The lower layer full cigarette card conveyor belt 405 mainly conveys the cigarette cards 3 filled with cigarette packs (7 layers, 26 packs per layer) to the side away from the cigarette card vertical conveying channel. The servo motor is still driven by the synchronous belt to drive the driving shaft to rotate so that the conveyor belt on the other side works. The rest of the structure is basically the same as the lower layer full cigarette card conveyor belt 405. The main difference is that the guide plate of the empty cigarette card 3 is larger in length direction and longer than the upper layer empty cigarette card conveyor belt 404, in order to receive the cigarette cards 3 filled with cigarette packs.

[0053] In the actual design, a cigarette card tray position sensor 407 is provided at the empty cigarette position on the cigarette card vertical conveying channel 401. The photoelectric sensor, the cigarette card tray position sensor 407, the cigarette pack grabbing robot 2, the baffle driving mechanism, the cigarette pack conveying device 1 and the cigarette card conveying device 4 are all electrically connected to the PLC electrical control system. As for the control circuit composed of the above components, they are all existing technologies and will not be described here.

[0054] When the cigarette card support plate 403 moves to the position of the cigarette card support plate position sensor 407, the cigarette card support plate position sensor 407 triggers the control of the Z-axis drive motor to stop working, so that the cigarette cards 3 can always be loaded at the same initial position.

[0055] Specifically, a cigarette card 3 baffle 103 is provided at the bottom end of the cigarette card vertical conveying channel near the cigarette pack grasping robot 2 to prevent the cigarette pack from falling from the open side end of the cigarette card 3. The cigarette card 3 is a box structure, and the top surface of the box structure and the side surface near the grasping robot are open.

[0056] See also Figure 1-Figure 6 A cigarette pack buffer replenishment method adopts the above-mentioned cigarette pack buffer device, which is installed between the upstream cigarette pack packaging equipment and the downstream strip pack packaging equipment. The cigarette pack buffer device, the cigarette pack packaging equipment and the strip pack packaging equipment are all controlled by the production line control system of the cigarette pack packaging production line, including two working modes:

[0057] Cigarette packet cache working mode:

[0058] When the downstream strip packing equipment fails, the production line control system sends an instruction to the cigarette pack buffer device to control the cigarette pack buffer device to buffer the cigarette packs. The baffle 103 blocks the cigarette packs in the cigarette pack access channel 101 from being conveyed downstream. The cigarette pack access robot extracts the cigarette packs from the cigarette pack access channel 101 into the cigarette card 3. The Z-direction conveyor belt 402 of the cigarette card conveying device 4 conveys the cigarette card 3 downward. Each time a layer of cigarette packs is loaded, the cigarette card 3 moves down one station. The full cigarette card 3 conveyor belt runs outward to convey the full cigarette packs of cigarette cards 3 outward. The empty cigarette card 3 conveyor belt conveys the empty cigarette card 3 inward to the cigarette card vertical conveying channel 401. The cigarette card handling robot 406 lifts the empty cigarette card 3 and places it on the cigarette card support plate 403 at the empty cigarette position of the cigarette card vertical conveying channel 401, completing the transfer of the empty cigarette card 3 between the empty cigarette card 3 conveyor belt and the Z-direction conveyor belt 402.

[0059] Cigarette pack replenishment working mode:

[0060] When the upstream cigarette packing equipment fails, the production line control system sends an instruction to the cigarette pack buffer device, controlling the cigarette pack buffer device to replenish the cigarette packs, the baffle 103 is retracted, and the cigarette pack conveyor belt 102 of the cigarette pack access channel 101 runs. The cigarette pack access robot extracts cigarette packs from the cigarette cards 3 and places them on the cigarette pack conveyor belt 102 of the cigarette pack access channel 101, and sends the cached cigarette packs to the downstream strip pack packaging equipment. The Z-direction conveyor belt 402 of the cigarette card conveying device 4 conveys the cigarette cards 3 upward. Each time a layer of cigarette packs is removed, the cigarette cards 3 rise one station, and the conveyor belt of full cigarette cards 3 runs inward to transport the full cigarette cards 3 inward to the cigarette card vertical conveying channel 401. The cigarette card handling robot 406 lifts the empty cigarette cards 3 on the Z-direction conveyor belt 402 and places them on the empty cigarette card 3 conveyor belt. The conveyor belt of empty cigarette cards 3 runs outward to transport the empty cigarette cards 3 outward.

[0061] The above embodiments are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. The obvious changes or modifications derived therefrom are still within the scope of protection of the present invention.

Claims

1. A cigarette pack buffer device, characterized in that: It includes a cigarette pack conveying device, a cigarette pack grabbing manipulator and a cigarette card; the cigarette pack conveying device, the cigarette pack grabbing manipulator and the cigarette card are arranged on a frame; The cigarette pack conveying device comprises a cigarette pack storage and access channel adapted to the cigarette pack, a cigarette pack conveying belt arranged at the bottom of the cigarette pack storage and access channel, and a driving motor for driving the cigarette pack conveying belt to operate; The output end of the cigarette pack access channel is provided with a baffle for controlling its on and off, the cigarette card is formed with a cigarette pack buffer chamber for storing cigarette packs, and the cigarette pack conveying device is provided with a baffle driving mechanism; The cigarette pack grabbing manipulator is arranged at one side of the cigarette pack conveying device and is used to grab the cigarette packs cached in the cigarette pack access channel and stack them layer by layer in the cigarette pack cache chamber; The cigarette packet grabbing manipulator comprises a bracket, a sliding seat slidably mounted on the X-guide rail of the bracket, a slider slidably mounted on the Z-guide rail of the sliding seat, a support frame connected to the slider, and a plurality of suction cups arranged in a row on the support frame; The bracket is provided with an X-direction driving mechanism for driving the sliding seat to slide along the X-guide rail between a first position and a second position, and the sliding seat is provided with a Z-direction driving mechanism for driving the slider to slide along the Z-guide rail; When the sliding seat is located at the first position, the suction cup is located directly above the cigarette pack access channel, and the Z-direction driving mechanism drives the suction cup to move downward to grasp the cigarette pack; when the sliding seat is located at the second position, the suction cup moves to the cigarette card position, and the suction cup releases the grasped cigarette pack into the cigarette pack buffer chamber after the air is deflated; A photoelectric sensor is provided at the input end of the cigarette pack access channel, and the photoelectric sensor, cigarette pack grabbing manipulator, cigarette pack conveying device and baffle driving mechanism are all controlled by a PLC electrical control system; It also includes a cigarette card conveying device, which includes a cigarette card vertical conveying channel and a cigarette card driving mechanism for driving the cigarette card to move in the cigarette card vertical conveying channel; When the grabbing manipulator completes grabbing and stacking of a cigarette pack, the cigarette card is driven by the cigarette card driving mechanism to move down by one cigarette pack stacking thickness, and the cigarette card conveying device is controlled by the PLC electrical control system; The cigarette card is a box structure, and the top surface of the box structure and the side surface close to the grasping robot are open.

2. The cigarette packet buffering device according to claim 1, characterized in that: The cigarette card driving mechanism includes Z-direction conveyor belts symmetrically and parallelly arranged on both sides of the cigarette card vertical conveying channel and a Z-direction driving motor driving the Z-direction conveyor belts to move. A number of cigarette card support plates for supporting the cigarette cards are symmetrically arranged on the inner sides of the two Z-direction conveyor belts.

3. The cigarette packet buffering device according to claim 2, characterized in that: The cigarette card conveying device also includes an upper empty cigarette card conveyor belt, a lower full cigarette card conveyor belt and a cigarette card handling robot. The output end of the cigarette card vertical conveying channel is connected to the input end of the lower full cigarette card conveyor belt. The cigarette card handling robot is used to lift the cigarette cards conveyed on the upper empty cigarette card conveyor belt and place them on the cigarette card tray of the cigarette cards.

4. The cigarette packet buffering device according to claim 3, characterized in that: The cigarette card vertical conveying channel has a full cigarette position and an empty cigarette position, and the distance between two adjacent cigarette card support plates on the Z-direction conveying belt is greater than the height of the cigarette card; When the cigarette card moves to the full cigarette position, the cigarette card is full of cigarette packs, and one of the cigarette card support plates on the Z-direction conveyor belt just moves to the empty cigarette position, and the cigarette card handling robot can lift the empty cigarette card and place it on the cigarette card support plate at the empty cigarette position; When the cigarette card moves to the empty cigarette position, one of the cigarette card support plates on the Z-direction conveyor belt just moves to the full cigarette position and is located below the lower full cigarette card conveyor belt.

5. The cigarette packet buffering device according to claim 4, characterized in that: A cigarette card support plate position sensor is provided at the empty cigarette position on the cigarette card vertical conveying channel, and the cigarette card support plate position sensor is controlled by the PLC electrical control system.

6. The cigarette packet buffering device according to claim 5, characterized in that: The cigarette card conveying device also includes upper empty cigarette card guide plates located on both sides of the upper empty cigarette card conveying belt and lower full cigarette card guide plates located on both sides of the lower full cigarette card conveying belt.

7. The cigarette packet buffering device according to claim 5, characterized in that: A cigarette card baffle is provided at the bottom end of one side of the cigarette card vertical conveying channel close to the cigarette pack grabbing robot to prevent the cigarette pack from falling from the side open end of the cigarette card.

8. A method for replenishing a cigarette packet buffer, characterized in that: The cigarette pack buffer device according to any one of claims 3 to 7 is installed between an upstream cigarette pack packaging device and a downstream strip pack packaging device, comprising: Cigarette packet cache working mode: The cigarette pack storage and retrieval robot extracts cigarette packs from the cigarette pack storage and retrieval channel and puts them into cigarette cards. The baffle blocks the cigarette packs in the cigarette pack storage and retrieval channel from being transported downstream. The Z-direction conveyor belt of the cigarette card conveying device transports the cigarette cards downward. Each time a layer of cigarette packs is loaded, the cigarette cards drop one station downward. The full cigarette card conveyor belt runs outward to transport the full cigarette packs of cigarette cards outward. The empty cigarette card conveyor belt transports the empty cigarette cards inward to the cigarette card vertical conveying channel. The cigarette card handling robot lifts the empty cigarette cards and places them on the cigarette card tray at the empty cigarette position in the cigarette card vertical conveying channel, completing the transfer of empty cigarette cards between the empty cigarette card conveyor belt and the Z-direction conveyor belt. Cigarette pack replenishment working mode: The cigarette pack conveyor belt of the cigarette pack storage and access channel is running, the cigarette pack storage and retrieval robot extracts cigarette packs from the cigarette cards and places them on the cigarette pack conveyor belt of the cigarette pack storage and access channel, the baffle is retracted, and the cached cigarette packs are transported downstream, and the Z-axis conveyor belt of the cigarette card conveying device transports the cigarette cards upwards. Each time a layer of cigarette packs is removed, the cigarette card rises one station, the full cigarette card conveyor belt runs inwards, and transports the full cigarette cards inwards to the cigarette card vertical conveying channel, and the empty cigarette card conveyor belt runs outwards, and transports the empty cigarette cards outwards.

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