A cigarette pack paperboard die-cutting device and a die-cutting method thereof

Abstract

The application discloses a cigarette packaging box paperboard die-cutting device and a die-cutting method thereof, and belongs to the technical field of cigarette processing. The device comprises a conveying seat and a supporting frame located at the middle position of the conveying seat. A paperboard moving structure is arranged on the conveying seat to move the paperboard. A paperboard arrangement structure is arranged on the paperboard moving structure to arrange the paperboard. A die-cutting moving structure is arranged on the supporting frame. A die-cuting adjustment structure is arranged on the die-cutting moving structure. Two paperboard die-cutting structures are respectively arranged on the die-cutting adjustment structure. A paperboard pressing structure is arranged at the bottom of the paperboard moving structure to press the paperboard. Two electronic eyes are arranged on the die-cutting adjustment structure to identify the color marks on the paperboard. The positions of the two adjustment plates can be controlled according to the positions of the color marks on the paperboard, the positions of the two die-cutting knives can be horizontally moved, the positions of the die-cutting knives can be accurately moved to the color marks on the paperboard, and the paperboard can be die-cut in the subsequent process.

Description

Technical Field

[0001] This invention belongs to the field of cigarette processing technology, and in particular relates to a die-cutting device and method for cigarette packaging cardboard. Background Technology

[0002] Cigarette packaging boxes are used to package cigarettes, serving both a protective and decorative purpose. Cigarette packaging boxes on the market are mainly divided into hard packs, soft packs, and handmade boxes. Soft packs use lightweight packaging materials with poor rigidity, offering little protection for the cigarettes.

[0003] With the rapid development of the printing and packaging industry, the market demands higher and higher levels of automation in post-press processing equipment. The pursuit of high-speed and precise processing equipment to improve production efficiency and capture market share is both a market demand and an inevitable trend in the development of post-press equipment.

[0004] However, existing die-cutting devices cannot identify the color marks on the paper during the die-cutting process, resulting in the edges of the paper not being neatly aligned during the die-cutting process. This affects the subsequent die-cutting of the paper. Furthermore, after the paperboard is aligned, the position of the die-cutting blade cannot be adjusted according to the die-cutting requirements, causing the die-cutting blade to be misaligned with the color marks on the paperboard, which affects the accuracy of subsequent paperboard die-cutting. Summary of the Invention

[0005] This invention provides a die-cutting device and method for cigarette packaging cardboard to solve the problems in the prior art.

[0006] The present invention adopts the following technical solution: a cigarette packaging cardboard die-cutting device, comprising a conveyor seat and a support frame located in the middle of the conveyor seat, the conveyor seat having a cardboard moving structure for moving the cardboard, the cardboard moving structure having a cardboard tidying structure for tidying the cardboard, the support frame having a die-cutting moving structure having a sliding fit with the support frame, the die-cutting moving structure having a die-cutting adjustment structure having a die-cutting adjustment structure having a rotatable connection with the die-cutting moving structure, the die-cutting adjustment structure having two cardboard die-cutting structures having a sliding fit with the die-cutting adjustment structure, the bottom of the cardboard moving structure having a cardboard pressing structure for pressing the cardboard, the cardboard pressing structure having a vertical sliding fit with the die-cutting adjustment structure, and the die-cutting adjustment structure having two electronic eyes for identifying color marks on the cardboard.

[0007] Furthermore, the cardboard moving structure includes a moving motor, a placement frame, a first moving sprocket, a second moving sprocket, and a chain. The first and second moving sprockets are symmetrically rotatably connected to the conveyor base. The chain is sleeved on the first and second moving sprockets. The placement frame is horizontally slidably connected to the conveyor base and is connected to the chain. The moving motor is located at one end of the conveyor base and is drively connected to the first moving sprocket.

[0008] Furthermore, the cardboard sorting structure includes two sorting plates symmetrically arranged in the placement frame and a sorting electric cylinder arranged on the placement frame. The sorting plates are slidably engaged with the placement frame, and the sorting plates are connected to the telescopic ends of the sorting electric cylinders. The sorting plates are provided with two horizontal rods that are slidably engaged with the moving frame.

[0009] Furthermore, the die-cutting moving structure includes a moving cylinder, a moving frame, and two moving rods. The moving cylinder is located on the top of the support frame, the moving frame is connected to the telescopic end of the moving cylinder, and the two moving rods are symmetrically arranged on the moving frame, with the moving rods slidingly engaged with the support frame.

[0010] Furthermore, the die-cutting adjustment structure includes an adjustment motor, an adjustment gear, two adjustment plates, and two adjustment toothed plates. The adjustment motor is located inside the moving frame, and the main shaft of the adjustment motor extends to the bottom of the moving frame. The adjustment gear is connected to the main shaft of the adjustment motor. The two adjustment toothed plates are symmetrically and slidably connected to the bottom of the moving frame. The adjustment gear meshes with the two adjustment toothed plates. The two adjustment plates are respectively connected to the ends of the two adjustment toothed plates. The adjustment plates are provided with two adjustment rods that slide in cooperation with the moving frame.

[0011] The position of the two adjusting plates can be controlled according to the position of the color mark on the cardboard, which can drive the position of the two die-cutting blades to move horizontally and precisely move the position of the die-cutting blades to the color mark on the cardboard so that the cardboard can be die-cut in the subsequent process, and the excess waste material outside the color mark on the cardboard can be removed.

[0012] Furthermore, the electronic eye is mounted at the end of the adjustment plate.

[0013] Furthermore, each of the cardboard die-cutting structures includes a die-cutting cylinder, a die-cutting frame, and a die-cutting blade. The die-cutting cylinder is vertically mounted on the top of the adjusting plate. The die-cutting frame is slidably connected to the adjusting plate and is connected to the telescopic end of the die-cutting cylinder. The die-cutting blade is mounted on the bottom of the die-cutting frame.

[0014] Furthermore, the cardboard pressing structure includes a pressing plate, two extension plates, and two sliding rods. The two sliding rods are symmetrically arranged on the top of the pressing plate and are slidably connected to the moving frame. Each sliding rod is fitted with a return spring, and the two ends of the return spring are respectively connected between the moving frame and the pressing plate. The two extension plates are horizontally slidably connected to both ends of the pressing plate.

[0015] It can drive the extension plate to move up and down on the adjustment plate via two sliding rods to press and fix the paper to be die-cut, preventing the die-cutting position of the cardboard from lifting or curling during the die-cutting process, which would affect the accuracy of the cardboard die-cutting.

[0016] A die-cutting method for a cigarette packaging cardboard die-cutting device, the die-cutting method comprising the following steps:

[0017] The first step involves stacking the processed cardboard onto the placement frame, then using a cardboard sorting structure to arrange the stacked cardboard neatly within the placement frame.

[0018] The second step involves the die-cutting moving structure moving the two cardboard die-cutting structures downwards, thus moving the two cardboard die-cutting structures and the two electronic eyes to the top of the cardboard.

[0019] The third step involves using two electronic eyes to identify two color marks on the cardboard, and then transmitting the position information of the color marks to the die-cutting adjustment structure.

[0020] The fourth step involves adjusting the position of the two cardboard die-cutting structures by adjusting the two die-cutting blades to be positioned above the color marks on the cardboard.

[0021] Fifth step: After adjustment, the two cardboard die-cutting structures drive the two die-cutting blades to move downwards to perform die-cutting on the cardboard. During the die-cutting process, the cardboard pressing structure moves downwards through the die-cutting moving structure to press and fix the position of the cardboard to be die-cut.

[0022] The sixth step is to move the die-cut cardboard outwards using the cardboard moving structure so that the cardboard and waste materials can be unloaded later.

[0023] The above-described at least one technical solution adopted in the embodiments of the present invention can achieve the following beneficial effects:

[0024] Firstly, this invention identifies the position of the color mark on the cardboard using an electronic eye, and then transmits the corresponding signal to the controller. The controller then controls the adjustment motor to operate, which drives the adjustment gear to rotate, causing the two adjustment plates to move closer or further away from the bottom of the moving frame. This moves the two adjustment plates, adjusting the position of the die-cutting blades on the adjustment plates. Simultaneously, the electronic eye is moved to the position of the color mark on the cardboard. Once the electronic eye senses the position of the color mark, it transmits a signal to the controller, which then stops the adjustment motor. During the die-cutting process, the position of the two adjustment plates can be controlled according to the position of the color mark on the cardboard, which in turn moves the two die-cutting blades horizontally, precisely positioning them on the color mark on the cardboard for subsequent die-cutting to remove excess waste material outside the color mark.

[0025] Secondly, during the die-cutting of the cardboard in this invention, the cardboard at the die-cutting blade position needs to be pressed and fixed. At this time, the moving cylinder drives the moving frame to move downward, thereby moving the pressing plate to the top of the cardboard. The adjusting motor drives the two adjusting plates to move. When adjusting the position of the two die-cutting blades, the position of the two extending plates can also be moved to slide on the two pressing plates, thereby moving the position of the extending plates to the side of the cardboard die-cutting blade. Finally, when the moving cylinder drives the pressing plate downward to press the cardboard, the extending plates can move up and down on the adjusting plates through the two sliding rods to press and fix the paper to be die-cut, preventing the cardboard from warping or curling during the die-cutting process, which would affect the accuracy of the cardboard die-cutting.

[0026] Thirdly, in the process of die-cutting cardboard, the die-cutting cylinder moves the die-cutting frame downward on the adjustment plate, which in turn moves the position of the die-cutting blade downward to perform die-cutting on the stacked cardboard. The die-cutting position is located at the color mark position on the cardboard, so as to perform die-cutting on the cardboard more accurately.

[0027] After die-cutting, during the interval between feeding the placement frame, the die-cutting cylinder drives the die-cutting frame up and down, thereby causing the die-cutting blade to move up and down reciprocally. At this time, the up and down movement of the die-cutting blade can also dissipate heat from the die-cutting blade, preventing the high temperature of the die-cutting blade from melting the glue on the cardboard and causing the cardboard to stick together during the next die-cutting process. Attached Figure Description

[0028] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0029] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention;

[0031] Figure 3 This is a three-dimensional structural diagram of the cardboard moving structure and the cardboard finishing structure in this invention;

[0032] Figure 4 This is a partial three-dimensional structural diagram of the present invention;

[0033] Figure 5 This is a three-dimensional structural diagram of the cardboard finishing structure in this invention;

[0034] Figure 6 This is a three-dimensional structural diagram of the die-cutting adjustment structure in this invention;

[0035] Figure 7 This is a three-dimensional structural diagram of the cardboard die-cutting structure in this invention;

[0036] Figure 8 This is a three-dimensional structural diagram of the cardboard pressing structure in this invention;

[0037] Figure Labels

[0038] Conveyor seat 1, support frame 11,

[0039] Cardboard moving structure 2, moving motor 21, placement frame 22, first moving sprocket 23, second moving sprocket 24, chain 25.

[0040] Cardboard sorting structure 3, sorting board 31, sorting electric cylinder 32, level bar 33.

[0041] Die-cutting moving structure 4, die-cutting moving cylinder 41, moving frame 42, moving rod 43.

[0042] Die-cutting adjustment structure 5, adjustment motor 51, adjustment gear 52, adjustment plate 53, adjustment toothed plate 54, adjustment rod 55.

[0043] Cardboard die-cutting structure 6, die-cutting cylinder 61, die-cutting frame 62, die-cutting blade 63.

[0044] Cardboard pressing structure 7, pressing plate 71, extension plate 72, sliding rod 73, return spring 74, electronic eye 8. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0046] The technical solutions provided by the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0047] Reference Figures 1 to 8 As shown, this embodiment of the invention provides a die-cutting device for cigarette packaging cardboard, including a conveyor seat 1 and a support frame 11 located in the middle of the conveyor seat 1. The conveyor seat 1 is provided with a cardboard moving structure 2 that moves the cardboard in position. The cardboard moving structure 2 is provided with a cardboard tidying structure 3 that tidies the cardboard. The support frame 11 is provided with a die-cutting moving structure 4, which is slidably engaged with the support frame 11. The die-cutting moving structure 4 is provided with a die-cutting adjusting structure 5, which is rotatably connected to the die-cutting moving structure 4. The die-cutting adjusting structure 5 is provided with two cardboard die-cutting structures 6, which are slidably engaged with the die-cutting adjusting structure 5. The bottom of the cardboard moving structure 2 is provided with a cardboard pressing structure 7 that presses the cardboard. The cardboard pressing structure 7 is slidably engaged with the die-cutting adjusting structure 5. The die-cutting adjusting structure 5 is provided with two electronic eyes 8 for recognizing color marks on the cardboard.

[0048] The electronic eye 8 is existing technology. The model of the electronic eye 8 is the Keyence CV-X series vision system, and the entire device is connected to a controller.

[0049] Preferably, the cardboard moving structure 2 includes a moving motor 21, a placement frame 22, a first moving sprocket 23, a second moving sprocket 24, and a chain 25. The first moving sprocket 23 and the second moving sprocket 24 are symmetrically rotatably connected to the conveyor seat 1. The chain 25 is sleeved on the first moving sprocket 23 and the second moving sprocket 24. The placement frame 22 is horizontally slidably connected to the conveyor seat 1 and is connected to the chain 25. The moving motor 21 is located at one end of the conveyor seat 1 and is drivenly connected to the first moving sprocket 23.

[0050] During the feeding process, the mobile motor 21 drives the first mobile sprocket 23 to rotate, which in turn drives the second mobile sprocket 24 to rotate via the chain 25. This causes the placement frame 22 to move horizontally on the conveyor seat 1, moving the placement frame 22 to the side of the cardboard feeding area. The cardboard is then fed and stacked using the existing cardboard automatic feeding device.

[0051] After the cardboard is die-cut, the moving motor 21 can also drive the die-cut cardboard and waste material to move outward to the support frame 11 so that the cardboard can be unloaded and recycled.

[0052] Preferably, the cardboard sorting structure 3 includes two sorting plates 31 symmetrically arranged in the placement frame 22 and a sorting electric cylinder 32 arranged on the placement frame 22. The sorting plates 31 are slidably engaged with the placement frame 22. The sorting plates 31 are connected to the telescopic ends of the sorting electric cylinder 32. The sorting plates 31 are provided with two horizontal rods 33 that are slidably engaged with the moving frame 42.

[0053] After the cardboard is stacked into the placement frame 22, the two sorting cylinders 32 work simultaneously to drive the two sorting plates 31 to move towards the center position on the placement frame 22 via the corresponding two horizontal bars 33, thereby sorting the position of the stacked cardboard so that the two ends of the cardboard are neatly arranged and stacked together for subsequent identification of the color marks on the cardboard and subsequent die-cutting work.

[0054] Preferably, the die-cutting moving structure 4 includes a die-moving cylinder 41, a moving frame 42, and two moving rods 43. The die-moving cylinder 41 is disposed on the top of the support frame 11, the moving frame 42 is connected to the telescopic end of the die-moving cylinder 41, and the two moving rods 43 are symmetrically disposed on the moving frame 42, and the moving rods 43 are slidably engaged with the support frame 11.

[0055] During die cutting, the moving cylinder 41 first moves the moving frame 42 downward through the two moving rods 43 and the support frame 11, moving the die-cutting blade 63 located below the moving frame 42 to the top of the cardboard, so that the cardboard die-cutting structure 6 can then move the die-cutting blade 63 downward to perform die cutting on the color mark on the cardboard.

[0056] Preferably, the die-cutting adjustment structure 5 includes an adjustment motor 51, an adjustment gear 52, two adjustment plates 53, and two adjustment toothed plates 54. The adjustment motor 51 is located inside the moving frame 42, and the main shaft of the adjustment motor 51 extends to the bottom of the moving frame 42. The adjustment gear 52 is connected to the main shaft of the adjustment motor 51. The two adjustment toothed plates 54 are symmetrically and slidably connected to the bottom of the moving frame 42. The adjustment gear 52 meshes with the two adjustment toothed plates 54. The two adjustment plates 53 are respectively connected to the ends of the two adjustment toothed plates 54. The adjustment plate 53 is provided with two adjustment rods 55 that slide in cooperation with the moving frame 42.

[0057] After the electronic eye 8 identifies the position of the color mark on the cardboard, the corresponding signal is transmitted to the controller. At this time, the controller will control the adjustment motor 51 to work. The adjustment motor 51 drives the adjustment gear 52 to rotate, which in turn drives the two adjustment tooth plates 54 to move closer or further away from the bottom of the moving frame 42, thereby moving the positions of the two adjustment plates 53 and adjusting the position of the die-cutting blade 63 on the adjustment plates 53.

[0058] While adjusting, the position of the electronic eye 8 is also moved to the position of the color mark on the cardboard. When the electronic eye 8 senses the position of the color mark, it will transmit a signal to the controller, which will control the adjustment motor 51 to stop working. During the die-cutting process of the cardboard, the positions of the two adjustment plates 53 can be controlled according to the position of the color mark on the cardboard, which will drive the positions of the two die-cutting blades 63 to move horizontally, and move the position of the die-cutting blades 63 precisely to the color mark on the cardboard, so that the cardboard can be die-cut in the subsequent process, and the excess waste material outside the color mark on the cardboard can be removed.

[0059] Preferably, the electronic eye 8 is installed at the end of the adjustment plate 53. The electronic eye 8 can identify the color mark on the cardboard. After identification, it can locate the position of the color mark on the cardboard and transmit the position signal to the controller. The controller can then control the adjustment motor 51 to work, thereby moving the two die-cutting blades 63 above the color mark so that during the subsequent die-cutting process, the die-cutting blades 63 can accurately move to the position of the color mark to perform die-cutting work on the cardboard.

[0060] Preferably, each of the cardboard die-cutting structures 6 includes a die-cutting cylinder 61, a die-cutting frame 62, and a die-cutting blade 63. The die-cutting cylinder 61 is vertically arranged on the top of the adjusting plate 53. The die-cutting frame 62 is slidably connected to the adjusting plate 53 and is connected to the telescopic end of the die-cutting cylinder 61. The die-cutting blade 63 is installed at the bottom of the die-cutting frame 62.

[0061] During the die-cutting process of cardboard, the die-cutting cylinder 61 drives the die-cutting frame 62 to move downward on the adjustment plate 53, which in turn moves the position of the die-cutting blade 63 downward to perform die-cutting on the stacked cardboard. The die-cutting position is located at the color mark position on the cardboard, so as to perform die-cutting on the cardboard more accurately.

[0062] After die-cutting, during the intermittent feeding of the placement frame 22, the die-cutting cylinder 61 drives the die-cutting frame 62 to move up and down, thereby causing the die-cutting blade 63 to move up and down reciprocally. At this time, the up and down movement of the die-cutting blade 63 can also dissipate heat from the die-cutting blade 63, preventing the high temperature of the die-cutting blade 63 from melting the glue on the cardboard and causing the cardboard to stick together during the next die-cutting process.

[0063] Preferably, the cardboard pressing structure 7 includes a pressing plate 71, two extension plates 72, and two sliding rods 73. The two sliding rods 73 are symmetrically arranged on the top of the pressing plate 71. The two sliding rods 73 are slidably connected to the moving frame 42. A return spring 74 is sleeved on each sliding rod 73. The two ends of the return spring 74 are respectively connected between the moving frame 42 and the pressing plate 71. The two extension plates 72 are horizontally slidably connected to the two ends of the pressing plate 71.

[0064] The return spring 74 can reset the position of the clamping plate 71 when the clamping plate 71 moves upward through the mold moving cylinder 41. The return spring 74 is in a compressed state when clamping.

[0065] During cardboard die-cutting, the cardboard at the die-cutting blade 63 needs to be pressed and fixed. At this time, the die-moving cylinder 41 drives the moving frame 42 to move downward, thereby moving the pressing plate 71 to the top of the cardboard. The adjusting motor 51 drives the two adjusting plates 53 to move. When adjusting the position of the two die-cutting blades 63, the position of the two extending plates 72 can also be moved on the two pressing plates 71 to slide, thereby moving the position of the extending plates 72 to the side of the cardboard die-cutting blade 63. Finally, when the die-moving cylinder 41 drives the pressing plate 71 downward to press the cardboard, the extending plate 72 can be moved up and down on the adjusting plate 53 through the two sliding rods 73 to press and fix the paper to be die-cut, preventing the cardboard from warping or curling during the die-cutting process, which would affect the accuracy of the cardboard die-cutting.

[0066] During the die-cutting process, the position of the extension plate 72 can be adjusted according to the position of the die-cutting blade 63, and the position can be adjusted according to the width of the cardboard, so as to be suitable for die-cutting of cardboard of different sizes.

[0067] A die-cutting method for a cigarette packaging cardboard die-cutting device, the die-cutting method comprising the following steps:

[0068] The first step involves stacking the processed cardboard onto the placement frame 22, and then arranging the stacked cardboard using the cardboard arranging structure 3 to ensure that the cardboard is neatly arranged and stacked within the placement frame 22.

[0069] In the second step, the die-cutting moving structure 4 can drive the two cardboard die-cutting structures 6 to move downwards, moving the positions of the two cardboard die-cutting structures 6 and the two electronic eyes 8 to the top of the cardboard.

[0070] The third step involves using two electronic eyes 8 to identify two color marks on the cardboard, and then transmitting the position information of the color marks to the die-cutting adjustment structure 5.

[0071] The fourth step involves the die-cutting adjustment structure 5 working to adjust the positions of the two cardboard die-cutting structures 6, positioning the two die-cutting blades 63 above the color marks on the cardboard.

[0072] Fifth step: After the adjustment is completed, the two cardboard die-cutting structures 6 drive the two die-cutting blades 63 to move downwards to perform die-cutting on the cardboard. During the die-cutting process, the cardboard pressing structure 7 moves downwards through the die-cutting moving structure 4 to press and fix the position of the cardboard to be die-cut.

[0073] The sixth step is to move the die-cut cardboard outwards using the cardboard moving structure 2, so that the cardboard and waste materials can be unloaded later.

[0074] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A die-cutting device for cigarette packaging cardboard, characterized in that, The system includes a conveyor seat (1) and a support frame (11) located in the middle of the conveyor seat (1). The conveyor seat (1) is provided with a cardboard moving structure (2) that moves the cardboard. The cardboard moving structure (2) is provided with a cardboard sorting structure (3) that sorts the cardboard. The support frame (11) is provided with a die-cutting moving structure (4). The die-cutting moving structure (4) and the support frame (11) are slidably connected. The die-cutting moving structure (4) is provided with a die-cutting adjustment structure (5). The die-cutting adjustment structure (5) and the die-cutting moving structure (4) are rotatably connected. The die-cutting adjustment structure (5) is provided with two cardboard die-cutting structures (6). The cardboard die-cutting structure (6) and the die-cutting adjustment structure (5) are slidably connected. The bottom of the cardboard moving structure (2) is provided with a cardboard pressing structure (7) that presses the cardboard. The cardboard pressing structure (7) and the die-cutting adjustment structure (5) are slidably connected. The die-cutting adjustment structure (5) is provided with two electronic eyes (8) that identify the color marks on the cardboard. The die-cutting moving structure (4) includes a die-moving cylinder (41), a moving frame (42), and two moving rods (43). The die-moving cylinder (41) is located on the top of the support frame (11). The moving frame (42) is connected to the telescopic end of the die-moving cylinder (41). The two moving rods (43) are symmetrically arranged on the moving frame (42), and the moving rods (43) slide against the support frame (11). The die-cutting adjustment structure (5) includes an adjustment motor (51), an adjustment gear (52), two adjustment plates (53) and two adjustment toothed plates (54). The adjustment motor (51) is located inside the moving frame (42) and the main shaft of the adjustment motor (51) extends to the bottom of the moving frame (42). The adjustment gear (52) is connected to the main shaft of the adjustment motor (51). The two adjustment toothed plates (54) are symmetrically slidably connected to the bottom of the moving frame (42). The adjustment gear (52) meshes with the two adjustment toothed plates (54). The two adjustment plates (53) are respectively connected to the ends of the two adjustment toothed plates (54). The adjustment plate (53) is provided with two adjustment rods (55) that slide with the moving frame (42). The cardboard pressing structure (7) includes a pressing plate (71), two extension plates (72) and two sliding rods (73). The two sliding rods (73) are symmetrically arranged on the top of the pressing plate (71). The two sliding rods (73) are slidably connected to the moving frame (42). A return spring (74) is sleeved on the sliding rod (73). The two ends of the return spring (74) are respectively connected between the moving frame (42) and the pressing plate (71). The two extension plates (72) are horizontally slidably connected to the two ends of the pressing plate (71).

2. The cigarette packaging cardboard die-cutting device according to claim 1, characterized in that: The cardboard moving structure (2) includes a moving motor (21), a placement frame (22), a first moving sprocket (23), a second moving sprocket (24), and a chain (25). The first moving sprocket (23) and the second moving sprocket (24) are symmetrically rotatably connected to the conveyor seat (1). The chain (25) is sleeved on the first moving sprocket (23) and the second moving sprocket (24). The placement frame (22) is horizontally slidably connected to the conveyor seat (1) and the placement frame (22) is connected to the chain (25). The moving motor (21) is located at one end of the conveyor seat (1) and the moving motor (21) is driven by the first moving sprocket (23).

3. The cigarette packaging cardboard die-cutting device according to claim 2, characterized in that: The cardboard sorting structure (3) includes two sorting plates (31) symmetrically arranged in the placement frame (22) and a sorting electric cylinder (32) arranged on the placement frame (22). The sorting plates (31) are slidably engaged with the placement frame (22). The sorting plates (31) are connected to the telescopic end of the sorting electric cylinder (32). The sorting plates (31) are provided with two horizontal rods (33) that are slidably engaged with the moving frame (42).

4. The cigarette packaging cardboard die-cutting device according to claim 1, characterized in that: The electronic eye (8) is installed at the end of the adjustment plate (53).

5. The cigarette packaging cardboard die-cutting device according to claim 1, characterized in that: Each of the cardboard die-cutting structures (6) includes a die-cutting cylinder (61), a die-cutting frame (62), and a die-cutting blade (63). The die-cutting cylinder (61) is vertically mounted on the top of the adjusting plate (53). The die-cutting frame (62) is slidably connected to the adjusting plate (53) and is connected to the telescopic end of the die-cutting cylinder (61). The die-cutting blade (63) is mounted on the bottom of the die-cutting frame (62).

6. A die-cutting apparatus and method for cigarette packaging cardboard according to any one of claims 1-5, characterized in that: The die-cutting method includes the following steps: The first step is to stack the processed cardboard on the placement frame (22) in sequence, and then arrange the stacked cardboard through the cardboard arrangement structure (3) so that the cardboard is neatly arranged and stacked in the placement frame (22); In the second step, the die-cutting moving structure (4) can drive the two cardboard die-cutting structures (6) to move downwards, and move the positions of the two cardboard die-cutting structures (6) and the two electronic eyes (8) to the top of the cardboard; The third step is to identify the two color marks on the cardboard by using two electronic eyes (8), and then transmit the position information of the color marks to the die-cutting adjustment structure (5); The fourth step is to adjust the position of the two cardboard die-cutting structures (6) by adjusting the working of the die-cutting adjustment structure (5) to position the two die-cutting blades (63) above the color mark on the cardboard. In the fifth step, after the adjustment is completed, the two cardboard die-cutting structures (6) drive the two die-cutting blades (63) to move downwards to perform die-cutting work on the cardboard. During the die-cutting process, the cardboard pressing structure (7) moves downwards through the die-cutting moving structure (4) to press and fix the position of the cardboard to be die-cut. Step 6: After die-cutting is completed, the die-cut cardboard is moved outward by the cardboard moving structure (2) so that the cardboard and waste materials can be unloaded in the future.

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