A carton automatic stacking and turnover device

Abstract

The utility model discloses a kind of automatic stacking and turnover device of carton, including inlet belt conveyor, automatic stacking mechanism, push pile mechanism and tobacco pile turnover mechanism;Inlet belt conveyor is formed with input end and jacking station, for transporting flat carton from input end to jacking station;Automatic stacking mechanism has stacking station, for stacking flat carton on jacking station to form flat tobacco pile in stacking station;Push pile mechanism is used to transfer flat tobacco pile to tobacco pile turnover mechanism;Tobacco pile turnover mechanism includes turnover driving part and rotating frame, and rotating frame can be switched between flat state and vertical state;Flat tobacco pile is received by rotating frame in flat state, and turnover driving part drives rotating frame to switch to vertical state, so that flat tobacco pile is turned into vertical tobacco pile.The utility model can realize the automation of carton stacking and turnover, ensure that carton direction is unified, pile shape is stable, reduce packaging damage and scattered pile risk simultaneously, improve production efficiency and product quality.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, specifically to an automatic stacking and flipping device for cigarette packs. Background Technology

[0002] Currently, the cigarettes produced by the packaging machine need to be transported one by one to the boxing area via an overhead conveyor line to complete the subsequent boxing and sealing processes.

[0003] During this process, cigarette cartons need to be stacked into piles according to different specifications, and their orientation needs to be adjusted to meet the requirements of box sealing. However, the stacking and flipping steps in the existing production process still rely heavily on manual operation, which is not only inefficient but also has many problems: on the one hand, manual operation can easily cause scratches on the outer packaging of cigarette cartons, affecting the appearance quality of the product; on the other hand, due to human interference, inconsistent orientation of cigarette cartons inside the box and frequent instances of stacking during flipping not only increase the difficulty of quality control but also cause a waste of human and material resources.

[0004] Therefore, there is an urgent need for an automatic stacking and flipping device for cigarette cartons. This device can replace traditional manual operation, realize the automation of stacking and flipping of cigarette cartons, ensure uniform orientation and stable stack shape, and reduce packaging damage and the risk of stack breakage. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide an automatic stacking and flipping device for cigarette cartons, which can realize the automation of stacking and flipping of cigarette cartons, ensure the uniformity of cigarette carton orientation and the stability of stack shape, while reducing packaging damage and the risk of stack breakage, and improving production efficiency and product quality.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] An automatic stacking and flipping device for cigarette packs includes an inlet belt conveyor, an automatic stacking mechanism, a stack pushing mechanism, and a stack flipping mechanism.

[0008] An input end is formed at the end of the inlet belt conveyor, and a lifting station is formed on the inlet belt conveyor. The flat cigarette packs are transported from the input end to the lifting station through the inlet belt conveyor.

[0009] The automatic stacking mechanism has a stacking station, which is located above the lifting station; the automatic stacking mechanism is used to stack the flat tobacco strips on the lifting station into the stacking station to form a flat tobacco stack.

[0010] The stacking mechanism is used to transfer the flat tobacco stacks to the tobacco stack flipping mechanism;

[0011] The tobacco stack flipping mechanism includes a flipping drive and a rotating frame. The rotating frame can switch between a flat state and an upright state. The flat tobacco stack is received by the rotating frame in the flat state, and the flipping drive drives the rotating frame to switch to the upright state, so that the flat tobacco stack is flipped into an upright tobacco stack.

[0012] In one optional embodiment, the inlet belt conveyor includes a belt conveyor frame, a drive roller, a driven roller, a conveyor belt, and a belt drive assembly; the drive roller and the driven roller are rotatably connected to both ends of the belt conveyor frame, the conveyor belt is sleeved around the drive roller and the driven roller in the circumferential direction, and the belt drive assembly is drively connected to the drive roller.

[0013] In one optional embodiment, the automatic stacking mechanism includes a stacking lifting structure and a stacking slot structure;

[0014] The stacked lifting structure includes a lifting mounting frame, a lifting assembly, and a lifting drive assembly. The lifting mounting frame is fixed to the bottom of the inlet conveyor belt. The lifting assembly includes a lifting connecting plate, a first lifting plate, and a second lifting plate. The lifting connecting plate is slidably connected to the lifting mounting frame via a slider guide mechanism, thereby allowing the lifting connecting plate to move back and forth in the height direction relative to the lifting mounting frame. The first lifting plate and the second lifting plate are respectively fixed to both ends of the lifting connecting plate. The lifting drive assembly is drively connected to the lifting connecting plate.

[0015] In one optional embodiment, the stacking groove structure includes a stacking groove base plate, a first stacking component, and a second stacking component; the stacking groove base plate is fixed to the bottom of the inlet conveyor belt, and the first stacking component and the second stacking component are respectively disposed on both sides of the lifting station, supporting the two ends of the flat cigarette packs through the first stacking component and the second stacking component, thereby fixing the flat cigarette packs in the stacking station.

[0016] In one optional embodiment, the first stacking assembly further includes a first side frame, a wedge, a pivot fixing seat, and a tension spring; the pivot fixing seat is connected to the first side frame, the bottom of the wedge is connected to a pivot, and the pivot is hinged to the pivot fixing seat, thereby allowing the wedge to rotate relative to the first side frame. The wedge has a first position and a second position. The first position is when the wedge rotates into the stacking station to support the end of the flat cigarette pack, and the second position is when the wedge rotates out of the stacking station to clear a passage for the cigarette pack to enter the stacking station from the lifting station; one end of the tension spring is connected to the wedge, and the other end is connected to the first side frame.

[0017] In one optional embodiment, the stacking trough structure further includes a baffle assembly, the baffle assembly including a front fixed baffle and a rear sliding baffle arranged sequentially along the conveying direction of the inlet belt conveyor; the front fixed baffle and the rear sliding baffle are respectively disposed at both ends of the stacking station.

[0018] In one optional embodiment, the stacking mechanism includes a stacking mounting frame, a stacking drive component, a stacking upright plate, and a stacking plate assembly;

[0019] The top of the pusher plate is connected to the pusher mounting frame, and the bottom of the pusher plate is connected to the pusher plate assembly. The pusher drive is fixed to the pusher mounting frame and is connected to the pusher plate. The pusher drive drives the pusher plate to move between the stacking station and the tobacco stack turning mechanism. The pusher plate assembly pushes the flat tobacco stacks on the stacking station into the rotating frame in a flat state.

[0020] In one optional embodiment, the pusher plate assembly includes a pusher plate, a pusher flap, and a flap drive component;

[0021] The pusher plate is connected to the bottom of the pusher plate, the pusher flap is hinged to the pusher plate, the flap drive is located at the bottom of the pusher plate, and the flap drive is connected to the pusher flap in a transmission manner. The flap drive drives the pusher flap to unfold or fold relative to the pusher plate.

[0022] In one optional embodiment, the tobacco stack turning mechanism includes a turning mounting frame;

[0023] The rotating frame has a top plate, a bottom plate, and a side plate. A rotating arm is provided between the bottom plate and the side plate. The rotating arm is hinged to the stacking mounting frame via a rotating shaft, so that the rotating frame can rotate on the stacking mounting frame.

[0024] The flipping drive is connected to the stacking mounting frame. The flipping drive has an output end, which is connected to the rotation shaft of the rotating arm via a swing arm. The rotating shaft is driven to rotate by the flipping drive, thereby switching the rotating frame between a flat state and an upright state.

[0025] In one optional embodiment, the rotating frame has a push-in port and a push-out port formed on opposite sides; the rotating frame further includes a first blocking flap, a first blocking drive, a second blocking flap, and a second blocking drive; the first blocking flap is hinged to the top plate of the rotating frame, the first blocking drive is connected to the top plate of the rotating frame, the first blocking drive has an output end, and the output end of the first blocking drive is connected to the first blocking flap via a swing arm; the second blocking flap is hinged to the bottom plate of the rotating frame, the second blocking drive is connected to the bottom plate of the rotating frame, the second blocking drive has an output end, and the output end of the second blocking drive is connected to the second blocking flap via a swing arm; the first blocking drive and the second blocking drive respectively drive the first blocking flap and the second blocking flap to rotate, thereby opening or closing the push-out port of the rotating frame.

[0026] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0027] This utility model's automatic cigarette stacking and flipping device receives flat cigarette packs from the packaging machine via an inlet belt conveyor and transports them from the input end to the lifting station. An automatic stacking mechanism stacks the flat cigarette packs layer by layer from the lifting station to the stacking station, forming flat cigarette stacks according to the arrangement required for boxing. The stacked flat cigarette stacks are then pushed into a rotating frame by a pushing mechanism. A cigarette stack flipping mechanism rotates the flat cigarette stacks 90° to form upright cigarette stacks, automating the stacking and flipping process, replacing traditional manual operation, and reducing reliance on manual stacking. It also ensures uniform cigarette pack orientation and stable stack shape, while reducing packaging damage and the risk of stack breakage. The upright cigarette stacks formed by flipping significantly reduce the bottom area occupied during circulation, creating a more compact production environment, reducing the floor space required by the boxing system, and improving productivity per unit space. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the automatic stacking and flipping device for cigarette packs in Example 1;

[0029] Figure 2 This is a schematic diagram of the inlet belt conveyor of the automatic cigarette stacking and flipping device in Example 1;

[0030] Figure 3 This is a structural diagram of the automatic docking mechanism, the stacking mechanism, and the stack flipping mechanism of the automatic stacking and flipping device for cigarette packs in Example 1.

[0031] Figure 4 This is a structural schematic diagram of the automatic docking mechanism, the stacking mechanism, and the stack flipping mechanism of the automatic stacking and flipping device for cigarette packs in Example 1 from another angle.

[0032] Figure 5 This is a partial enlarged view of part A of the automatic cigarette stacking and flipping device in Example 1;

[0033] Figure 6 This is a schematic diagram of the tobacco stack turning mechanism of the automatic tobacco stacking and turning device in Example 1;

[0034] Figure 7 This is a schematic diagram of the tobacco stack flipping mechanism from another angle of the automatic tobacco stacking and flipping device of Embodiment 1.

[0035] In the diagram: 10. Inlet belt conveyor; 11. Lifting station; 12. Input end; 13. Belt conveyor frame; 14. Conveyor belt; 15. Belt drive assembly; 20. Automatic stacking mechanism; 21. Stacking station; 22. Stacking lifting structure; 221. Lifting mounting frame; 222. Lifting assembly; 223. Lifting drive assembly; 23. Stacking slot structure; 231. Stacking slot base plate; 232. First stacking assembly; 2321. First side frame; 2322. Wedge; 2323. Rotary shaft fixing seat; 2324. Tension spring; 233. Second stacking assembly; 234. Baffle assembly; 2 341. Front fixed baffle; 2342. Rear sliding baffle; 30. Stacking mechanism; 31. Stacking mounting frame; 32. Stacking drive component; 33. Stacking upright plate; 34. Stacking plate assembly; 341. Stacking fixed plate; 342. Stacking flip plate; 343. Flip plate drive component; 40. Stacking overturning mechanism; 41. Stacking mounting frame; 42. Overturning drive component; 43. Rotating frame; 431. Rotating frame top plate; 432. Rotating frame bottom plate; 433. Rotating frame side plate; 434. First blocking flip plate; 435. First blocking drive component; 436. Second blocking flip plate; 437. Second blocking drive component. Detailed Implementation

[0036] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Unless otherwise specified, the materials and equipment used in this embodiment are all commercially available. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0037] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0038] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a connection through an intermediary, or a connection within two elements or an interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0039] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus.

[0040] Example 1:

[0041] Please refer to Figure 1-7 This embodiment provides an automatic stacking and flipping device for cigarette cartons applied to a packaging system. The function of the automatic stacking and flipping device in the packaging system is to automate the stacking and flipping of cigarette cartons.

[0042] The automatic stacking and flipping device for cigarette cartons in this embodiment includes an inlet belt conveyor 10, an automatic stacking mechanism 20, a stack pushing mechanism 30, and a cigarette stack flipping mechanism 40. The inlet belt conveyor 10 is used to connect with the packaging machine, and the automatic stacking mechanism 20, the stack pushing mechanism 30, and the cigarette stack flipping mechanism 40 are all installed in the main frame of the boxing system.

[0043] An input end 12 is formed at the end of the inlet belt conveyor 10. The input end 12 is used to receive flat cigarette packs produced by the packaging machine. A lifting station 11 is formed on the inlet belt conveyor 10. The flat cigarette packs are transported from the input end 12 to the lifting station 11 through the inlet belt conveyor 10.

[0044] The automatic stacking mechanism 20 has a stacking station 21, which is located above the lifting station 11; the automatic stacking mechanism 20 is used to stack the flat tobacco strips on the lifting station 11 into the stacking station 21 to form a flat tobacco stack.

[0045] The stacking mechanism 30 is located between the automatic stacking mechanism 20 and the stack flipping mechanism 40, and is mainly used to transfer the flat stacks of tobacco to the stack flipping mechanism 40.

[0046] The tobacco stack flipping mechanism 40 includes a flipping drive 42 and a rotating frame 43. The rotating frame 43 can switch between a flat state and an upright state. The flat tobacco stack is received by the rotating frame 43 in the flat state, and the flipping drive 42 drives the rotating frame 43 to switch to the upright state, so that the flat tobacco stack is flipped into an upright tobacco stack.

[0047] Specifically, the inlet conveyor belt 10 of this embodiment includes a conveyor belt frame 13, a drive roller, a driven roller, a conveyor belt 14, and a belt drive assembly 15. The drive roller and the driven roller are rotatably connected to both ends of the conveyor belt frame 13. The conveyor belt 14 is sleeved around the drive roller and the driven roller in the circumferential direction. The belt drive assembly 15 is connected to the drive roller via a chain drive mechanism. The belt drive assembly 15 provides power to drive the drive roller and the driven roller to rotate, thereby driving the conveyor belt 14 to roll, continuously transporting the flat cigarette packs from the input end 12 of the inlet conveyor belt 10 to the lifting station 11.

[0048] The automatic stacking mechanism 20 in this embodiment includes a stacking lifting structure 22 and a stacking slot structure 23.

[0049] The stacking and lifting structure 22 includes a lifting mounting frame 221, a lifting assembly 222, and a lifting drive assembly 223. The lifting mounting frame 221 is fixed to the bottom of the inlet conveyor belt 10. The lifting assembly 222 includes a lifting connecting plate, a first lifting plate, and a second lifting plate. The lifting connecting plate is slidably connected to the lifting mounting frame 221 through a slider guide mechanism, so that the lifting connecting plate can move back and forth in the height direction relative to the lifting mounting frame 221. The first lifting plate and the second lifting plate are respectively fixed to both ends of the lifting connecting plate. The lifting drive assembly 223 is connected to the lifting connecting plate through a crank-connecting rod mechanism. The lifting drive assembly 223 provides power to drive the lifting connecting plate to move back and forth in the height direction, driving the first lifting plate and the second lifting plate at both ends to lift the two ends of the flat cigarette pack, pushing the flat cigarette pack on the lifting station 11 upward into the stacking station 21.

[0050] The stacking slot structure 23 includes a stacking slot base plate 231, a first stacking component 232, and a second stacking component 233. The stacking slot base plate 231 is fixed to the bottom of the inlet belt conveyor 10. The first stacking component 232 and the second stacking component 233 are respectively arranged on both sides of the lifting station 11. The first stacking component 232 and the second stacking component 233 support the two ends of the flat cigarette pack and fix the flat cigarette pack in the stacking station 21.

[0051] The first stacking assembly 232 includes a first side frame 2321, and the second stacking assembly 233 includes a second side frame. The first side frame 2321 and the second side frame are slidably connected to the stacking slot substrate 231 through a second slider guide mechanism, thereby allowing the first side frame 2321 and the second side frame to move closer to or further away from the lifting station 11. A torsion plate translation assembly and a translation drive assembly are also fixed at the bottom of the stacking slot substrate 231. The torsion plate translation assembly and the translation drive assembly are connected in a transmission manner, and the torsion plate translation assembly is connected to the first side frame 2321 and the second side frame, respectively. Power is provided by the translation drive assembly, which drives the first side frame 2321 and the second side frame on both sides of the lifting station 11, i.e., the first stacking assembly 232 and the second stacking assembly 233, to move closer to or further away from each other simultaneously, in order to accommodate different types of cigarette packs.

[0052] The first stacking assembly 232 in this embodiment further includes a wedge 2322, a pivot fixing seat 2323, and a tension spring 2324. The pivot fixing seat 2323 is connected to the first side frame 2321. The bottom of the wedge 2322 is connected to a pivot, which is hinged to the pivot fixing seat 2323, thereby allowing the wedge 2322 to rotate relative to the first side frame 2321. The wedge 2322 has a first position and a second position, the first position being the wedge. 2322 rotates into the stacking station 21 to support the end of the flat cigarette pack. The second position is when the wedge 2322 rotates outside the stacking station 21 to make way for the flat cigarette pack to enter the stacking station 21 from the lifting station 11. One end of the tension spring 2324 is connected to the wedge 2322, and the other end is connected to the first side frame 2321. The tension spring 2324 provides an elastic force to drive the wedge 2322 to reset from the second position to the first position.

[0053] The specific structure of the second stacking component 233 is the same as that of the first stacking component 232. The two are arranged opposite each other to support the two ends of the flat cigarette pack. This is understandable to those skilled in the art and will not be described in detail here.

[0054] In use, the stacking lifting structure 22 lifts both ends of the flat cigarette packs, causing the flat cigarette packs on the lifting station 11 to move upward. The lifting force drives the wedge block 2322 to rotate from the first position to the second position, clearing a passage so that the flat cigarette packs can smoothly enter the stacking station 21. Then, the wedge block 2322 quickly resets under the action of the tension spring 2324, the lifting station 11 descends, and the wedge block 2322 supports the end of the bottom layer of flat cigarette packs. As the stacking lifting structure 22 lifts the flat cigarette packs upward layer by layer, the flat cigarette packs are stacked in the stacking station 21.

[0055] The first side frame 2321 and the front end of the second side frame, that is, the end near the input end 12 of the inlet belt conveyor 10, can also be equipped with a guide limit plate. The guide limit plate is L-shaped. The horizontal bottom edge of the L-shape is responsible for preventing the cigarettes that have not entered the lifting station 11 from being lifted during the lifting process of the flat cigarette packs, so as to prevent the cigarette packs from turning over. The vertical side of the L-shape is responsible for providing guidance for the flat cigarette packs at the edge during the lifting process, so that they can smoothly enter the stacking station 21.

[0056] The stacking trough structure 23 also includes a baffle assembly 234, which includes a front fixed baffle 2341 and a rear sliding baffle 2342 arranged sequentially along the conveying direction of the inlet belt conveyor 10. The front fixed baffle 2341 and the rear sliding baffle 2342 are respectively set at both ends of the stacking station 21, and the front fixed baffle 2341 and the rear sliding baffle 2342 support the two sides of the flat tobacco stack in the stacking station 21 to prevent the stack from falling apart.

[0057] The front fixed baffle 2341 is fixedly connected to the first side frame 2321, and the rear sliding baffle 2342 is slidably connected to the stacking slot base plate 231. The connection between the rear sliding baffle 2342 and the stacking slot base plate 231 is also provided with a screw mechanism and a locking mechanism for adjusting the position of the rear sliding baffle 2342. The screw mechanism and the locking mechanism drive the rear sliding baffle 2342 to slide on the stacking slot base plate 231, so that the rear sliding baffle 2342 can move closer to or further away from the front fixed baffle 2341, thereby controlling the width of the stacking station 21 to adapt to the stacking requirements of different specifications of cigarette stacks.

[0058] The bottom of the rear sliding baffle 2342 can extend into the lifting station 11, intercepting the horizontally placed cigarette packs and allowing several horizontally placed cigarette packs to gather into the lifting station 11. Of course, an interception mechanism can also be set to achieve the gathering of horizontally placed cigarette packs within the lifting station 11, as will be understood by those skilled in the art.

[0059] The stacking mechanism 30 in this embodiment includes a stacking mounting frame 31, a stacking drive component 32, a stacking upright plate 33, and a stacking plate assembly 34.

[0060] The top of the pusher plate 33 is connected to the pusher mounting frame 31, and the bottom of the pusher plate 33 is connected to the pusher plate assembly 34. The pusher drive 32 is fixed to the pusher mounting frame 31. The pusher drive 32 is implemented using a rodless cylinder to save space. The pusher drive 32 is connected to the pusher plate 33 for transmission. The pusher drive 32 drives the pusher plate 33 to move horizontally between the stacking station 21 and the tobacco stack turning mechanism 40. The pusher plate assembly 34 pushes the flat tobacco stack on the stacking station 21 into the flat rotating frame 43.

[0061] Furthermore, the pusher plate assembly 34 can switch between a folded state and an unfolded state. The pusher plate assembly 34 includes a pusher plate 341, a pusher flap 342, and a flap drive 343. The pusher plate 341 is connected to the bottom of the pusher plate 33, the pusher flap 342 is hinged to the pusher plate 341, and the flap drive 343 is located at the bottom of the pusher plate 33. The flap drive 343 is connected to the pusher flap 342 via a swing arm. The flap drive 343 drives the pusher flap 342 to unfold or fold relative to the pusher plate 341. The purpose of this action is that after the pusher flap 342 and the pusher plate 341 unfold to the same plane and push out a stack of cigarettes, the pusher flap 342 folds upward during the return trip, without affecting the automatic stacking mechanism 20's process of stacking cigarettes upward, reducing standby time and improving production efficiency.

[0062] The stack turning mechanism 40 in this embodiment also includes a stack turning mounting frame 41; the stack turning mounting frame 41 is used to install the stack turning mechanism 40 onto the main frame of the packaging system, and is responsible for providing installation positions for other parts on this mechanism.

[0063] The rotating frame 43 is a frame structure composed of a top plate 431, a bottom plate 432, and a side plate 433. A rotating arm is provided between the bottom plate 432 and the side plate 433. The rotating arm is hinged to the stacking mounting frame 41 via a rotating shaft, so that the rotating frame 43 can rotate on the stacking mounting frame 41.

[0064] The flipping drive 42 is implemented using a cylinder. The fixed end of the flipping drive 42 is hinged to the flipping mounting frame 41. The flipping drive 42 has an output end, namely the piston end. A swing arm is hinged to the piston end of the flipping drive 42. The other end of the swing arm is fixed to the middle of the rotating shaft of the rotating arm by a tension sleeve. The extension and retraction of the flipping drive 42 drives the swing arm to swing, thereby causing the rotating shaft to rotate. Both ends of the rotating shaft are fixed to the rotating arm of the rotating frame 43 by tension sleeves. Two bearings with seats are arranged in the gaps of the three sets of tension sleeves to fix the rotating shaft, realizing the switching between the horizontal and vertical states of the rotating frame 43.

[0065] Furthermore, the stacking mounting frame 41 is provided with fixed side plates; when the rotating frame 43 is switched to the flat position, the fixed side plates and the rotating frame side plates 433 are arranged opposite to each other on both sides of the rotating frame 43 to limit the two sides of the flat tobacco stack and prevent it from collapsing.

[0066] The rotating frame 43 has a push-in and a push-out on opposite sides. The push-in is on the side closer to the stacking station 21, through which the flat smoke stack is fed in. Opposite to it is the push-out, through which the upright smoke stack formed after flipping can be sent out.

[0067] The rotating frame 43 further includes a first blocking flap 434, a first blocking drive 435, a second blocking flap 436, and a second blocking drive 437; the first blocking flap 434 is hinged to the top plate 431 of the rotating frame, the first blocking drive 435 is connected to the top plate 431 of the rotating frame, the first blocking drive 435 has an output end, and the output end of the first blocking drive 435 is connected to the first blocking flap 434 through a swing arm; the second blocking flap 436 is hinged to the bottom plate 432 of the rotating frame, the second blocking drive 437 is connected to the bottom plate 432 of the rotating frame, the second blocking drive 437 has an output end, and the output end of the second blocking drive 437 is connected to the second blocking flap 436 through a swing arm. The first blocking drive member 435 and the second blocking drive member 437 respectively drive the first blocking flap 434 and the second blocking flap 436 to rotate, opening or closing the push-out port of the rotating frame 43. When the pushing mechanism 30 pushes the flat tobacco stack into the flipping frame, the first blocking flap 434 and the second blocking flap 436, with the push-out port of the rotating frame 43 closed, can provide a limiting function for the tobacco stack. After the upright tobacco stack is formed after flipping, the push-out port of the rotating frame 43 opens, providing conditions for the release of the upright tobacco stack. At the same time, the first blocking flap 434 and the second blocking flap 436, with the push-out port of the rotating frame 43 open, can guide the pushing process of the tobacco stack.

[0068] Based on the above structure, during operation, the inlet conveyor belt 10 is responsible for receiving the cigarette packs output by the packaging machine. To maintain the stability of the cigarette pack conveying, the cigarette packs output by the packaging machine are generally in a flat state (i.e., the wider side of the cigarette pack is at the bottom horizontal plane, and the narrower side is at the side vertical plane). The inlet conveyor belt 10 transports the received flat cigarette packs from the input end 12 to the lifting station 11. Subsequently, the automatic stacking mechanism 20 stacks the flat cigarette packs on the lifting station 11 layer by layer into the stacking station 21, and stacks them in the arrangement required for boxing. The stacked cigarette packs are formed by pushing them into the rotating frame 43 via the pushing mechanism 30. The stacking mechanism 40 then rotates the stacks 90° to form upright stacks (i.e., the narrower side of the cigarette pack is at the bottom horizontal plane, and the wider side is at the side vertical plane), adapting to the packaging requirements of the vertical box-sealing system. The upright stacks significantly reduce the bottom area occupied during circulation, which is beneficial for the spatial layout of the box-sealing system, reducing its floor space requirements and creating a more compact production environment. This embodiment's automatic cigarette stacking and flipping device, through the above settings, can replace traditional manual operation, automating the stacking and flipping of cigarette packs, ensuring uniform cigarette orientation and stable stack shape, while reducing packaging damage and the risk of stack breakage.

[0069] Although certain components and embodiments of this application have been illustrated and described, many modifications and alterations (e.g., variations in the size, dimensions, structure, shape and proportion of the various elements, installation arrangement, material use, color, orientation, etc.) will be conceived by those skilled in the art without actually departing from the scope and spirit of the claims.

[0070] Finally, it should be noted that the above embodiments are only preferred embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An automatic stacking and flipping device for cigarette packs, characterized in that, This includes an inlet belt conveyor, an automatic stacking mechanism, a stack pushing mechanism, and a stack turning mechanism; An input end is formed at the end of the inlet belt conveyor, and a lifting station is formed on the inlet belt conveyor. The flat cigarette packs are transported from the input end to the lifting station through the inlet belt conveyor. The automatic stacking mechanism has a stacking station, which is located above the lifting station; the automatic stacking mechanism is used to stack the flat tobacco strips on the lifting station into the stacking station to form a flat tobacco stack. The stacking mechanism is used to transfer the flat tobacco stacks to the tobacco stack flipping mechanism; The tobacco stack flipping mechanism includes a flipping drive and a rotating frame. The rotating frame can switch between a flat state and an upright state. The flat tobacco stack is received by the rotating frame in the flat state, and the flipping drive drives the rotating frame to switch to the upright state, so that the flat tobacco stack is flipped into an upright tobacco stack.

2. The automatic stacking and flipping device for cigarette packs according to claim 1, characterized in that, The inlet belt conveyor includes a belt conveyor frame, a drive roller, a driven roller, a conveyor belt, and a belt drive assembly; the drive roller and the driven roller are rotatably connected to both ends of the belt conveyor frame, the conveyor belt is sleeved around the drive roller and the driven roller in the circumferential direction, and the belt drive assembly is drively connected to the drive roller.

3. The automatic stacking and flipping device for cigarette packs according to claim 1, characterized in that, The automatic stacking mechanism includes a stacking lifting structure and a stacking slot structure; The stacked lifting structure includes a lifting mounting frame, a lifting assembly, and a lifting drive assembly. The lifting mounting frame is fixed to the bottom of the inlet conveyor belt. The lifting assembly includes a lifting connecting plate, a first lifting plate, and a second lifting plate. The lifting connecting plate is slidably connected to the lifting mounting frame via a slider guide mechanism, thereby allowing the lifting connecting plate to move back and forth in the height direction relative to the lifting mounting frame. The first lifting plate and the second lifting plate are respectively fixed to both ends of the lifting connecting plate. The lifting drive assembly is drively connected to the lifting connecting plate.

4. The automatic stacking and flipping device for cigarette packs according to claim 3, characterized in that, The stacking groove structure includes a stacking groove base plate, a first stacking component, and a second stacking component; the stacking groove base plate is fixed to the bottom of the inlet belt conveyor, and the first stacking component and the second stacking component are respectively arranged on both sides of the lifting station. The first stacking component and the second stacking component support the two ends of the flat cigarette pack and fix the flat cigarette pack in the stacking station.

5. The automatic stacking and flipping device for cigarette packs according to claim 4, characterized in that, The first stacking assembly further includes a first side frame, a wedge, a pivot fixing seat, and a tension spring; the pivot fixing seat is connected to the first side frame, the bottom of the wedge is connected to a pivot, and the pivot is hinged to the pivot fixing seat, so that the wedge can rotate relative to the first side frame. The wedge has a first position and a second position. The first position is when the wedge rotates into the stacking station to support the end of the flat cigarette pack. The second position is when the wedge rotates out of the stacking station to clear the passage for the cigarette pack to enter the stacking station from the lifting station. One end of the tension spring is connected to the wedge, and the other end is connected to the first side frame.

6. The automatic stacking and flipping device for cigarette packs according to claim 4, characterized in that, The stacking trough structure also includes a baffle assembly, which includes a front fixed baffle and a rear sliding baffle arranged sequentially along the conveying direction of the inlet belt conveyor; the front fixed baffle and the rear sliding baffle are respectively located at both ends of the stacking station.

7. The automatic stacking and flipping device for cigarette packs according to claim 1, characterized in that, The stacking mechanism includes a stacking mounting frame, a stacking drive component, a stacking upright plate, and a stacking plate assembly. The top of the pusher plate is connected to the pusher mounting frame, and the bottom of the pusher plate is connected to the pusher plate assembly; The pusher drive is fixed to the pusher mounting frame and is connected to the pusher plate. The pusher drive drives the pusher plate to move between the stacking station and the tobacco stack turning mechanism. The pusher plate assembly pushes the flat tobacco stacks on the stacking station into the rotating frame in the flat state.

8. The automatic stacking and flipping device for cigarette packs according to claim 7, characterized in that, The pusher plate assembly includes a pusher plate, a pusher flap, and a flap drive component. The pusher plate is connected to the bottom of the pusher plate, the pusher flap is hinged to the pusher plate, the flap drive is located at the bottom of the pusher plate, and the flap drive is connected to the pusher flap in a transmission manner. The flap drive drives the pusher flap to unfold or fold relative to the pusher plate.

9. The automatic stacking and flipping device for cigarette packs according to claim 1, characterized in that, The tobacco stack flipping mechanism includes a stack flipping mounting frame; The rotating frame has a top plate, a bottom plate, and a side plate. A rotating arm is provided between the bottom plate and the side plate. The rotating arm is hinged to the stacking mounting frame via a rotating shaft, so that the rotating frame can rotate on the stacking mounting frame. The flipping drive is connected to the stacking mounting frame. The flipping drive has an output end, which is connected to the rotation shaft of the rotating arm via a swing arm. The rotating shaft is driven to rotate by the flipping drive, thereby switching the rotating frame between a flat state and an upright state.

10. The automatic stacking and flipping device for cigarette packs according to claim 9, characterized in that, The rotating frame has a push-in port and a push-out port on opposite sides; the rotating frame also includes a first blocking flap, a first blocking drive component, a second blocking flap, and a second blocking drive component. The first blocking flap is hinged to the top plate of the rotating frame, and the first blocking drive is connected to the top plate of the rotating frame. The first blocking drive has an output end, which is connected to the first blocking flap via a swing arm. The second blocking flap is hinged to the bottom plate of the rotating frame, and the second blocking drive is connected to the bottom plate of the rotating frame. The second blocking drive has an output end, which is connected to the second blocking flap via a swing arm. The first and second blocking drives respectively drive the first and second blocking flaps to rotate, opening or closing the push-out port of the rotating frame.

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