Top box opening device of automatic box opening machine for cigarette cartons

Abstract

The utility model discloses a top box opening device of an automatic box opening machine for cigarette cartons. The top box opening device comprises a first lifting assembly, a second lifting assembly and a cover turning assembly. The first lifting assembly comprises a bearing mounting plate, an air cylinder mounting plate and a first lifting structure; the cylinder mounting plate is connected with the bearing mounting plate through a first lifting structure, so that the cylinder mounting plate can move up and down relative to the bearing mounting plate, and the height of the flip assembly is adjusted for the first time; the second lifting assembly comprises an air cylinder end plate and a second lifting structure. The air cylinder end plate is in sliding connection with the air cylinder mounting plate through a second lifting structure, so that the air cylinder end plate can move up and down relative to the air cylinder mounting plate, and secondary adjustment of the height of the flip cover assembly is achieved; the cover overturning assembly is arranged on the air cylinder end plate and used for overturning and opening the carton cover. The box opening height is controlled through multiple strokes, stability is good, all the cover turning assemblies can be reasonably distributed, and the box opening effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic packaging production, in particular to a top box opening device of an automatic cigarette carton opening machine. Background Art

[0002] When the tobacco industry purchases external cartons, the cartons are stacked and placed in straight boxes for packaging and delivery by the carton manufacturer to prevent the cartons from being damaged during transportation. After delivery to the tobacco factory, they need to be manually unpacked and the cartons inside the box taken out for use. This process requires manual cutting of the carton packing tape, opening the carton and taking out the cartons. Manual operation has low work efficiency and is easy to scratch the cartons inside the carton, wasting a lot of manpower and material resources.

[0003] At present, there are automatic unpacking equipment for finished carton packaging cartons purchased from outside cigarette factories, which is used to assist the cigarette factory in unpacking, unpacking and outputting carton stacks; the top unpacking device is an important part of the automatic unpacking machine for cigarette cartons, which is generally set between the flap opening device and the box pushing device, and is used to fold the side flap of the cigarette carton in the corresponding direction to facilitate the subsequent process. The existing top unpacking device generally uses a one-way cylinder to adjust the unpacking height, which has poor stability; secondly, the unpacking modules of the side flaps are prone to interference, and the unpacking effect is poor. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a top box opening device for an automatic cigarette carton opening machine, which adopts multiple strokes to control the opening height, has good stability, can reasonably distribute the various flap components, and has a good opening effect.

[0005] The purpose of the utility model is achieved by the following technical solutions:

[0006] A top opening device of an automatic cigarette carton opening machine comprises a first lifting assembly, a second lifting assembly and a flip cover assembly;

[0007] The first lifting assembly includes a bearing mounting plate, a cylinder mounting plate and a first lifting structure; the bearing mounting plate is used to mount the top box opening device on the automatic cigarette carton opening machine; the cylinder mounting plate and the bearing mounting plate are connected through the first lifting structure, so that the cylinder mounting plate can move up and down relative to the bearing mounting plate to achieve the first adjustment of the height of the flip cover assembly;

[0008] The second lifting assembly includes a cylinder end plate and a second lifting structure; the cylinder end plate and the cylinder mounting plate are slidably connected through the second lifting structure, so that the cylinder end plate can move up and down relative to the cylinder mounting plate to achieve a second adjustment of the height of the flip cover assembly;

[0009] The flap assembly is arranged on the cylinder end plate and is used for folding and opening the flap of the carton.

[0010] In an optional embodiment, the first lifting structure includes a round flange linear bearing and a guide column, the guide column is slidably connected to the bearing mounting plate through the round flange linear bearing, and the cylinder mounting plate is fixed to the end of the guide column, so that the cylinder mounting plate can move up and down relative to the bearing mounting plate.

[0011] In an optional embodiment, the number of the circular flange linear bearings and guide columns is 4, the 4 circular flange linear bearings are installed at the four corners of the bearing mounting plate, the lower end surfaces of the 4 guide columns are connected to the four corners of the cylinder mounting plate, and the 4 guide columns provide a guiding function for up and down adjustment of the cylinder mounting plate.

[0012] In an optional embodiment, the first lifting structure also includes a flange nut, a trapezoidal screw, a handwheel, a spacer and a handle; the flange nut is fixed to the bearing mounting plate; the trapezoidal screw is threadedly connected to the flange nut, one end of the trapezoidal screw extends to the lower end of the cylinder mounting plate and is connected to the handwheel, and a spacer is arranged between the handwheel and the cylinder mounting plate; the handle is installed on the side of the cylinder mounting plate, and the relative position of the trapezoidal screw and the cylinder mounting plate is locked by holding the shaft.

[0013] In an optional embodiment, the second lifting structure is a three-axis cylinder; the three-axis cylinder has a fixed end and a telescopic end, the fixed end of the three-axis cylinder is connected to the cylinder mounting plate, and the telescopic end of the three-axis cylinder is connected to the cylinder end plate, and the cylinder end plate is driven by the three-axis cylinder to move up and down relative to the cylinder mounting plate.

[0014] In an optional embodiment, the cylinder end plate has a first edge, a second edge, a third edge and a fourth edge, the first edge is arranged opposite to the second edge, and the third edge is arranged opposite to the fourth edge;

[0015] The flap assembly includes a first side flap opening assembly and a second side flap opening assembly; the first side flap opening assembly is arranged at the first edge, and is used to fold and open the front and rear side flaps on one side of the carton; the second side flap opening assembly is arranged at the second edge, and is used to fold and open the front and rear side flaps on the other side of the carton.

[0016] In an optional embodiment, the first side flip cover opening assembly includes a flip cylinder, a flip plate and a flip connecting rod; the flip plate is hinged to the first edge of the cylinder end plate, and a flip axis is formed at the hinge; the flip cylinder has a fixed end and a telescopic end, the fixed end of the flip cylinder is connected to the cylinder end plate through a cylinder seat, the telescopic end of the flip cylinder is hinged to the end of the flip connecting rod, and the other end of the flip connecting rod is circumferentially connected to the flip axis; the flip plate is driven to rotate relative to the cylinder end plate by the flip cylinder, so that the flip plate is close to or away from the side of the carton.

[0017] In an optional embodiment, the first side flip cover opening assembly further includes a front side flip cover opening assembly and a rear side flip cover opening assembly, and the front side flip cover opening assembly and the rear side flip cover opening assembly are respectively arranged on two opposite sides of the flip plate;

[0018] The front flap opening assembly includes a front flap driving component and a front flap suction cup group; the rear flap opening assembly includes a rear flap driving component and a rear flap suction cup group; the front flap driving component and the rear flap driving component respectively drive the front flap driving component and the rear flap suction cup group to approach or move away from the carton, thereby driving the side flaps on both sides of the carton to fold and open at the same time.

[0019] In an optional embodiment, the front flip cover suction cup group includes a suction cup seat and a buffer suction cup, and a plurality of the buffer suction cups are fixed to the suction cup seat; the suction cup is connected to the front flip cover driving member through a curved rod, and the curved rod is L-shaped, one end of the curved rod is fixed to the suction cup seat, and the other end is connected to the front flip cover driving member, and a bent portion is formed in the middle and is hinged to the end of the flip plate through a hinge;

[0020] The front flip cover driving component has a fixed end and a telescopic end. The fixed end of the front flip cover driving component is connected to the flip plate through a cylinder seat, and the telescopic end of the front flip cover driving component is hinged to the end of the bent rod. The front flip cover driving component provides power to drive the bent rod to rotate, thereby driving the front flip cover suction cup group to rotate relative to the flip plate, so that the front flip cover of the carton is adsorbed and flipped open.

[0021] In an optional embodiment, the flap assembly further comprises a front upper flap opening assembly and a rear upper flap opening assembly; the front upper flap opening assembly is arranged at the third edge, and is used to fold and open the upper flap on one side of the carton; the rear upper flap opening assembly is arranged at the fourth edge, and is used to fold and open the upper flap on the other side of the carton;

[0022] The front upper flip cover opening assembly includes a front upper flip cover driving component and a front upper flip cover suction cup group; the rear upper flip cover opening assembly includes a rear upper flip cover driving component and a rear upper flip cover suction cup group; the front upper flip cover driving component and the rear upper flip cover driving component respectively drive the front upper flip cover suction cup group and the front upper flip cover suction cup group to approach or move away from the carton channel, thereby driving the upper flip covers on both sides of the carton to fold upward at the same time.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] The utility model discloses a top opening device for an automatic cigarette carton opening machine. The device is installed on the automatic cigarette carton opening machine by setting a bearing mounting plate. The handle is loosened to unlock the cylinder mounting plate. At this time, the cylinder mounting plate can be driven to move relative to the bearing mounting plate by rotating the trapezoidal screw by the hand wheel. The cylinder mounting plate is smoothly raised and lowered under the guidance of four guide pillars. The height of the flap assembly below the device is adjusted for the first time according to the height of the carton. After the adjustment is completed, the relative position of the trapezoidal screw and the cylinder mounting plate is locked by the handle in a shaft-holding manner. The cylinder end plate is driven to move up and down relative to the cylinder mounting plate by a three-axis cylinder, so that the flap assembly installed on the cylinder end plate is close to or away from the carton to perform a flap opening operation, which is a second adjustment of the height of the flap assembly. Compared with the single-stroke control of the lifting and lowering of the flip-cover assembly, the top opening device of the automatic cigarette carton opening machine of the utility model makes the first adjustment according to the carton height through the first lifting assembly and locks this stroke to meet the processing requirements of different types of cartons. The second lifting assembly makes the second adjustment according to the requirements of the carton opening process. The three-axis cylinder meets the needs of short-stroke and frequent lifting and lowering. The opening height is controlled in a multi-stroke manner, which effectively improves the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the top box opening device of the automatic box opening machine for cigarette cartons of the utility model;

[0026] Figure 2 It is a structural schematic diagram of the top box opening device of the automatic box opening machine for cigarette cartons from another angle of the utility model;

[0027] Figure 3 It is a left view of the top box opening device of the automatic box opening machine for cigarette cartons of the utility model;

[0028] Figure 4 It is a front view of the top box opening device of the automatic box opening machine for cigarette cartons of the utility model;

[0029] Figure 5 It is a structural schematic diagram of a top box opening device of an automatic cigarette carton opening machine according to another embodiment of the utility model;

[0030] Figure 6 The utility model is a schematic diagram of the top box opening device of the automatic cigarette carton opening machine in use.

[0031] In the figure: 100, first lifting assembly; 110, bearing mounting plate; 120, cylinder mounting plate; 130, round flange linear bearing; 140, guide column; 150, flange nut; 160, trapezoidal screw; 170, hand wheel; 180, spacer; 190, handle; 200, second lifting assembly; 210, cylinder end plate; 220, three-axis cylinder; 310, first side flip cover opening assembly; 311, flip cylinder; 312, flip plate; 313, flip connecting rod; 320, front side flip cover opening assembly; 321, front side flip cover driving member; 322, front side flip cover suction cup group; 330, rear side flip cover opening assembly; 331, rear side flip cover driving member; 332, rear side flip cover suction cup group; 340, second side flip cover opening assembly; 350, front upper flip cover opening assembly; 351, front upper flip cover driving member; 352, front upper flip cover suction cup group; 360, rear upper flip cover opening assembly; 361, rear upper flip cover driving member; 362, rear upper flip cover suction cup group. DETAILED DESCRIPTION

[0032] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described. It should be noted that, under the premise of no conflict, the various embodiments described below or the various technical features can be arbitrarily combined to form a new embodiment. Except for special instructions, the materials and equipment used in this embodiment can be purchased from the market. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0033] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In the description of the present application, "plurality" means two or more, unless otherwise precisely and specifically specified.

[0034] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be connected through an intermediary medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0036] Embodiment 1:

[0037] Please refer to Figure 1-6 The present embodiment provides a top opening device of an automatic cigarette carton opening machine, comprising a first lifting assembly 100, a second lifting assembly 200 and a flip assembly which are sequentially arranged from top to bottom.

[0038] The first lifting assembly 100 includes a bearing mounting plate 110, a cylinder mounting plate 120 and a first lifting structure; the two side edges of the bearing mounting plate 110 are connected to the bottom of two mounting profiles of the frame components of the automatic cigarette carton opening machine, so that the device is installed on the automatic cigarette carton opening machine, and the bearing mounting plate 110 also provides support for various parts on the device. The cylinder mounting plate 120 is connected to the bearing mounting plate 110 through the first lifting structure, so that the cylinder mounting plate 120 can move up and down relative to the bearing mounting plate 110, so as to achieve the first adjustment of the height of the flip cover assembly.

[0039] Specifically, the first lifting structure includes a round flange linear bearing 130 and a guide column 140, the guide column 140 is slidably connected to the bearing mounting plate 110 through the round flange linear bearing 130, and the cylinder mounting plate 120 is fixed to the end of the guide column 140, so that the cylinder mounting plate 120 can move up and down relative to the bearing mounting plate 110. In this embodiment, the number of round flange linear bearings 130 and guide columns 140 is 4, and the 4 round flange linear bearings 130 are installed at the four corners of the bearing mounting plate 110. The lower end surfaces of the 4 guide columns 140 are connected to the four corners of the cylinder mounting plate 120, and the 4 guide columns 140 provide a guiding function for the cylinder mounting plate 120 to adjust up and down.

[0040] Furthermore, the first lifting structure also includes a flange nut 150, a trapezoidal screw 160, a handwheel 170, a spacer sleeve 180 and a handle 190; the flange nut 150 is fixed to the bearing mounting plate 110; the trapezoidal screw 160 is threadedly connected to the flange nut 150, one end of the trapezoidal screw 160 extends to the lower end of the cylinder mounting plate 120 and is connected to the handwheel 170, and a spacer sleeve 180 is arranged between the handwheel 170 and the cylinder mounting plate 120; the handle 190 is installed on the side of the cylinder mounting plate 120, and the relative position of the trapezoidal screw 160 and the cylinder mounting plate 120 is locked by holding the shaft.

[0041] The second lifting assembly 200 of this embodiment includes a cylinder end plate 210 and a second lifting structure; the cylinder end plate 210 and the cylinder mounting plate 120 are slidably connected via the second lifting structure, so that the cylinder end plate 210 can move up and down relative to the cylinder mounting plate 120, thereby realizing a second adjustment of the height of the flip cover assembly.

[0042] Specifically, the second lifting structure is a three-axis cylinder 220; the three-axis cylinder 220 has a fixed end and a telescopic end, the fixed end of the three-axis cylinder 220 is connected to the cylinder mounting plate 120, and the telescopic end of the three-axis cylinder 220 is connected to the cylinder end plate 210, and the cylinder end plate 210 is driven by the three-axis cylinder 220 to move up and down relative to the cylinder mounting plate 120.

[0043] The flap assembly is arranged on the cylinder end plate 210 and is used to fold open the flap of the carton.

[0044] When in use, the device is installed on the automatic cigarette carton opening machine through the bearing mounting plate 110, the handle 190 is loosened, and the cylinder mounting plate 120 is unlocked. At this time, the trapezoidal screw 160 is rotated by the hand wheel 170 to drive the cylinder mounting plate 120 to move relative to the bearing mounting plate 110. The cylinder mounting plate 120 is smoothly raised and lowered under the guidance of the four guide pillars 140, and the height of the flip cover assembly below the device is adjusted for the first time according to the height of the carton; after the adjustment is completed, the relative position of the trapezoidal screw 160 and the cylinder mounting plate 120 is locked by the handle 190 in a shaft-holding manner. The cylinder end plate 210 is driven to move up and down relative to the cylinder mounting plate 120 by the three-axis cylinder 220, so that the flip cover assembly installed on the cylinder end plate 210 is close to or away from the carton, and the height of the flip cover assembly is adjusted for the second time. Compared with the single-stroke control of the lifting and lowering of the flap assembly, this embodiment uses the first lifting assembly 100 to make a first adjustment according to the carton height and locks this stroke to meet the processing requirements of different types of cartons, and uses the second lifting assembly 200 to make a second adjustment according to the carton unpacking process requirements, and uses the three-axis cylinder 220 to meet the short-stroke and frequent lifting requirements; this embodiment controls the unpacking height through a multi-stroke method, which effectively improves the stability of the device.

[0045] The cylinder end plate 210 of this embodiment has a first edge, a second edge, a third edge and a fourth edge. The first edge and the second edge are arranged opposite to each other, and the first edge and the second edge are formed on the long side end surface of the cylinder end plate 210; the third edge and the fourth edge are arranged opposite to each other, and the third edge and the fourth edge are formed on the short side end surface of the cylinder end plate 210.

[0046] The flap assembly of this embodiment includes a first side flap opening assembly 310 and a second side flap opening assembly 340; the first side flap opening assembly 310 is arranged at the first edge, and is used to fold and open the front and rear side flaps on one side of the carton; the second side flap opening assembly 340 is arranged at the second edge, and is used to fold and open the front and rear side flaps on the other side of the carton.

[0047] Specifically, the first side flip cover opening assembly 310 includes a flip cylinder 311, a flip plate 312 and a flip connecting rod 313; the flip plate 312 is hinged to the first edge of the cylinder end plate 210, and a flip axis is formed at the hinge; the flip cylinder 311 has a fixed end and a telescopic end, the fixed end of the flip cylinder 311 is connected to the cylinder end plate 210 through a cylinder seat, the telescopic end of the flip cylinder 311 is hinged to the end of the flip connecting rod 313, and the other end of the flip connecting rod 313 is circumferentially connected to the flip axis; the flip plate 312 is driven to rotate relative to the cylinder end plate 210 by the flip cylinder 311, so that the flip plate 312 is close to or away from the side of the carton.

[0048] The first side flip cover opening assembly 310 further includes a front side flip cover opening assembly 320 and a rear side flip cover opening assembly 330, wherein the front side flip cover opening assembly 320 and the rear side flip cover opening assembly 330 are respectively disposed on two opposite sides of the flip plate 312;

[0049] The front flap opening assembly 320 includes a front flap driving component 321 and a front flap suction cup group 322; the rear flap opening assembly 330 includes a rear flap driving component 331 and a rear flap suction cup group 332; the front flap driving component 321 and the rear flap driving component 331 respectively drive the front flap driving component 321 and the rear flap suction cup group 332 to approach or move away from the carton, thereby driving the side flaps on both sides of the carton to fold and open at the same time.

[0050] The front flip cover suction cup group 322 includes a suction cup seat and a buffer suction cup, and a plurality of the buffer suction cups are fixed to the suction cup seat; the suction cup is connected to the front flip cover driving member 321 through a curved rod, and the curved rod is L-shaped, one end of the curved rod is fixed to the suction cup seat, and the other end is connected to the front flip cover driving member 321, and a bent portion is formed in the middle and is hinged to the end of the flip plate 312 through a hinge;

[0051] The front flip cover driving member 321 has a fixed end and a telescopic end. The fixed end of the front flip cover driving member 321 is connected to the flip plate 312 through a cylinder seat, and the telescopic end of the front flip cover driving member 321 is hinged to the end of the bent rod. The front flip cover driving member 321 provides power to drive the bent rod to rotate, thereby driving the front flip cover suction cup group 322 to rotate relative to the flip plate 312, so that the front flip cover of the carton is adsorbed and flipped open.

[0052] The structure of the rear side flip cover opening assembly 330 is consistent with that of the front side flip cover opening assembly 320, and the two are symmetrically arranged on the opposite sides of the flip plate 312; the structure of the second side flip cover opening assembly 340 is consistent with that of the first side flip cover opening assembly 310, and the two are symmetrically arranged on the opposite sides of the cylinder end plate 210, which will not be repeated here and can be understood by those skilled in the art.

[0053] In some preferred embodiments, the flap assembly further includes a front upper flap opening assembly 350 and a rear upper flap opening assembly 360; the front upper flap opening assembly 350 is arranged at the third edge, and is used to fold and open the upper flap on one side of the carton; the rear upper flap opening assembly 360 is arranged at the fourth edge, and is used to fold and open the upper flap on the other side of the carton;

[0054] The front upper flip cover opening assembly 350 includes a front upper flip cover driving component 351 and a front upper flip cover suction cup group 352; the rear upper flip cover opening assembly 360 includes a rear upper flip cover driving component 361 and a rear upper flip cover suction cup group 362; the front upper flip cover driving component 351 and the rear upper flip cover driving component 361 respectively drive the front upper flip cover suction cup group 352 and the front upper flip cover suction cup group 352 to approach or move away from the carton channel, driving the upper flip covers on both sides of the carton to fold upward at the same time.

[0055] The front upper flip cover suction cup group 352 includes a suction cup seat and a buffer suction cup, and a plurality of the buffer suction cups are fixed to the suction cup seat; the suction cup is connected to the front upper flip cover driving member 351 through a curved rod, and the curved rod is L-shaped, one end of the curved rod is fixed to the suction cup seat, and the other end is connected to the front upper flip cover driving member 351, and a bent portion is formed in the middle and is hinged to the edge of the cylinder end plate 210 through a hinge;

[0056] The front upper flip cover driving member 351 has a fixed end and a telescopic end. The fixed end of the front upper flip cover driving member 351 is connected to the cylinder end plate 210 through the cylinder seat, and the telescopic end of the front upper flip cover driving member 351 is hinged to the end of the bent rod. The front upper flip cover driving member 351 provides power to drive the bent rod to rotate, thereby driving the front upper flip cover suction cup group 352 to rotate relative to the cylinder end plate 210, so that the front upper flip cover of the carton is adsorbed and flipped open.

[0057] The structure of the rear upper flip cover opening assembly 360 is consistent with that of the front upper flip cover opening assembly 350 , and the two are symmetrically arranged on opposite sides of the cylinder end plate 210 , which will not be described in detail here, and can be understood by those skilled in the art.

[0058] When the carton enters the automatic carton opening machine for cigarettes, the lower flaps on both sides of the carton have been opened after the rubber cutting process and the lower flap opening process. In order to realize the full opening of the upper flaps and side flaps on both sides and facilitate the box pushing component to push out the strip box in the carton, this device is arranged above the box pushing station and completes the process of fully opening the upper flaps and side flaps on both sides before the box pushing component performs the action. When the carton reaches the execution position, the three-axis cylinder 220 extends out, driving the flip cover assembly to approach the top of the carton, and firstly, two symmetrically arranged front upper flip cover driving members 351 and rear upper flip cover driving members 361 extend out at the same time, driving the front upper flip cover suction cup groups 352 and rear upper flip cover suction cup groups 362 on both sides to flip down and adsorb the upper flip covers on both sides of the carton, and then the front upper flip cover driving member 351 and the rear upper flip cover driving member 361 retract at the same time, driving the front upper flip cover suction cup groups 352 and rear upper flip cover suction cup groups 362 on both sides to flip upward, thereby realizing the process of flipping upward and opening the upper flip covers on both sides of the carton adsorbed by the upper flip cover suction cups on both sides. After the upper flaps on both sides of the carton are opened, the left and right flaps on both sides of the carton can be opened. First, the two groups of flip cylinders 311 extend to drive the flip plate 312 to flip downward to the working position, and then the two groups of front flap driving members 321 and the rear flap driving members 331 extend at the same time, driving the two groups of front flap suction cup groups 322 and the rear flap suction cup groups 332 to move to the middle of the left and right flaps on both sides at the same time, so as to achieve the purpose of adsorbing the four side flaps. Finally, the two groups of front flap driving members 321 and the rear flap driving members 331 retract at the same time, so that the two groups of front flap suction cup groups 322 and the rear flap suction cup groups 332 drive the left and right flaps on both sides of the carton to open at the same time. The various components of the device are reasonably arranged and are not prone to interference under the condition of smooth operation, so that the carton flaps can be fully opened.

[0059] Although only certain components and embodiments of the present application have been illustrated and described, many modifications and changes (e.g., changes in size, dimensions, structure, shape and proportion of the various elements, mounting arrangements, use of materials, color, orientation, etc.) may be envisioned by those skilled in the art without actually departing from the scope and spirit of the claims.

[0060] Finally, it should be noted that the above-mentioned implementation mode is only a preferred embodiment of the present utility model, and cannot be used to limit the scope of protection of the present utility model. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present utility model shall fall within the scope of protection required by the present utility model.

Claims

1. A top opening device of an automatic cigarette carton opening machine, characterized in that: It includes a first lifting assembly, a second lifting assembly and a flip assembly; The first lifting assembly includes a bearing mounting plate, a cylinder mounting plate and a first lifting structure; the bearing mounting plate is used to mount the top box opening device on the automatic cigarette carton opening machine; the cylinder mounting plate and the bearing mounting plate are connected through the first lifting structure, so that the cylinder mounting plate can move up and down relative to the bearing mounting plate to achieve the first adjustment of the height of the flip cover assembly; The second lifting assembly includes a cylinder end plate and a second lifting structure; the cylinder end plate and the cylinder mounting plate are slidably connected through the second lifting structure, so that the cylinder end plate can move up and down relative to the cylinder mounting plate to achieve a second adjustment of the height of the flip cover assembly; The flap assembly is arranged on the cylinder end plate and is used for folding and opening the flap of the carton.

2. The top opening device of the automatic cigarette carton opening machine according to claim 1, characterized in that: The first lifting structure includes a round flange linear bearing and a guide column. The guide column is slidably connected to the bearing mounting plate through the round flange linear bearing. The cylinder mounting plate is fixed to the end of the guide column, so that the cylinder mounting plate can move up and down relative to the bearing mounting plate.

3. The top opening device of the automatic cigarette carton opening machine according to claim 2, characterized in that: The number of the circular flange linear bearings and guide columns is 4. The 4 circular flange linear bearings are installed at the four corners of the bearing mounting plate. The lower end surfaces of the 4 guide columns are connected to the four corners of the cylinder mounting plate. The 4 guide columns provide a guiding function for up and down adjustment of the cylinder mounting plate.

4. The top opening device of the automatic cigarette carton opening machine according to claim 3, characterized in that: The first lifting structure also includes a flange nut, a trapezoidal screw, a handwheel, a spacer and a handle; the flange nut is fixed to the bearing mounting plate; the trapezoidal screw is threadedly connected to the flange nut, one end of the trapezoidal screw extends to the lower end of the cylinder mounting plate and is connected to the handwheel, and a spacer is arranged between the handwheel and the cylinder mounting plate; the handle is installed on the side of the cylinder mounting plate, and the relative position of the trapezoidal screw and the cylinder mounting plate is locked by holding the shaft.

5. The top opening device of the automatic cigarette carton opening machine according to claim 1, characterized in that: The second lifting structure is a three-axis cylinder; the three-axis cylinder has a fixed end and a telescopic end, the fixed end of the three-axis cylinder is connected to the cylinder mounting plate, and the telescopic end of the three-axis cylinder is connected to the cylinder end plate, and the cylinder end plate is driven by the three-axis cylinder to move up and down relative to the cylinder mounting plate.

6. The top opening device of the automatic cigarette carton opening machine according to claim 1, characterized in that: The cylinder end plate has a first edge, a second edge, a third edge and a fourth edge, the first edge is arranged opposite to the second edge, and the third edge is arranged opposite to the fourth edge; The flap assembly includes a first side flap opening assembly and a second side flap opening assembly; the first side flap opening assembly is arranged at the first edge, and is used to fold and open the front and rear side flaps on one side of the carton; the second side flap opening assembly is arranged at the second edge, and is used to fold and open the front and rear side flaps on the other side of the carton.

7. The top opening device of the automatic cigarette carton opening machine according to claim 6, characterized in that: The first side flip cover opening assembly includes a flip cylinder, a flip plate and a flip connecting rod; the flip plate is hinged to the first edge of the cylinder end plate, and a flip axis is formed at the hinge; the flip cylinder has a fixed end and a telescopic end, the fixed end of the flip cylinder is connected to the cylinder end plate through a cylinder seat, the telescopic end of the flip cylinder is hinged to the end of the flip connecting rod, and the other end of the flip connecting rod is circumferentially connected to the flip axis; the flip plate is driven to rotate relative to the cylinder end plate by the flip cylinder, so that the flip plate is close to or away from the side of the carton.

8. The top opening device of the automatic cigarette carton opening machine according to claim 7, characterized in that: The first side flip cover opening assembly further comprises a front side flip cover opening assembly and a rear side flip cover opening assembly, wherein the front side flip cover opening assembly and the rear side flip cover opening assembly are respectively arranged on two opposite sides of the flip plate; The front flap opening assembly includes a front flap driving component and a front flap suction cup group; the rear flap opening assembly includes a rear flap driving component and a rear flap suction cup group; the front flap driving component and the rear flap driving component respectively drive the front flap driving component and the rear flap suction cup group to approach or move away from the carton, thereby driving the side flaps on both sides of the carton to fold and open at the same time.

9. The top opening device of the automatic cigarette carton opening machine according to claim 8, characterized in that: The front flip cover suction cup group includes a suction cup seat and a buffer suction cup, and a plurality of the buffer suction cups are fixed to the suction cup seat; the suction cup is connected to the front flip cover driving member through a curved rod, and the curved rod is L-shaped, one end of the curved rod is fixed to the suction cup seat, and the other end is connected to the front flip cover driving member, and a bent portion is formed in the middle and is hinged to the end of the flip plate through a hinge; The front flip cover driving component has a fixed end and a telescopic end. The fixed end of the front flip cover driving component is connected to the flip plate through a cylinder seat, and the telescopic end of the front flip cover driving component is hinged to the end of the bent rod. The front flip cover driving component provides power to drive the bent rod to rotate, thereby driving the front flip cover suction cup group to rotate relative to the flip plate, so that the front flip cover of the carton is adsorbed and flipped open.

10. The top opening device of the automatic cigarette carton opening machine according to claim 6, characterized in that: The flap assembly further comprises a front flap opening assembly and a rear flap opening assembly; the front flap opening assembly is arranged at the third edge, and is used to fold and open the flap on one side of the carton; the rear flap opening assembly is arranged at the fourth edge, and is used to fold and open the flap on the other side of the carton; The front upper flip cover opening assembly includes a front upper flip cover driving component and a front upper flip cover suction cup group; the rear upper flip cover opening assembly includes a rear upper flip cover driving component and a rear upper flip cover suction cup group; the front upper flip cover driving component and the rear upper flip cover driving component respectively drive the front upper flip cover suction cup group and the front upper flip cover suction cup group to approach or move away from the carton channel, thereby driving the upper flip covers on both sides of the carton to fold upward at the same time.

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