A cardboard slotting device

Abstract

This invention discloses a cardboard slotting device, including a machine tool body. A slotting working cavity is provided within the machine tool body. Three upper cutter shaft assemblies are arranged sequentially along the cardboard conveying direction within the slotting working cavity, and a lower cutter shaft assembly is respectively provided below each upper cutter shaft assembly. A cardboard channel is formed between the upper and lower cutter shaft assemblies. Each set of upper and lower cutter shaft assemblies is connected by a transmission assembly. Multiple upper cutter disc assemblies are distributed along the length of each upper cutter shaft assembly, and multiple lower cutter disc assemblies, corresponding one-to-one with the upper cutter disc assemblies, are provided along the length of each lower cutter shaft assembly. This device can process different numbers of cartons by adjusting the control of the three upper and lower cutter shaft assemblies, thereby improving the processing efficiency of cartons. Furthermore, the device can be adjusted according to the size parameters of the cardboard and the processing parameters of the cartons, improving its flexibility during use.

Description

Technical Field

[0001] This invention relates to the field of cardboard production equipment technology, and in particular to a cardboard slotting device. Background Technology

[0002] Existing cardboard slotting devices typically can only cut one finished carton in a single processing cycle. Furthermore, the slotting blades need to be replaced or their positions adjusted each time different cartons are produced to meet the production requirements of different cartons. As such, traditional cardboard slotting devices have low overall working efficiency and poor flexibility in use.

[0003] It is evident that existing technologies still need improvement and enhancement. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a cardboard slotting device that can cut one or two finished cartons in a single processing cycle and can flexibly adjust the slotting size of the slotting knife.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cardboard slotting device includes a machine body with a slotting working cavity. Three upper cutter shaft assemblies are arranged sequentially along the cardboard conveying direction within the slotting working cavity, and a lower cutter shaft assembly is disposed below each upper cutter shaft assembly. A cardboard channel is formed between the upper and lower cutter shaft assemblies. Each set of upper and lower cutter shaft assemblies is connected by a transmission assembly. Multiple upper cutter disc assemblies are distributed along the length of each upper cutter shaft assembly, and multiple lower cutter disc assemblies, corresponding one-to-one with the upper cutter disc assemblies, are disposed along the length of each lower cutter shaft assembly.

[0007] In the cardboard slotting device, the slotting working chamber includes a first cavity and a second cavity, which are separated by a fixed plate. The upper cutter shaft assembly and the lower cutter shaft assembly are located in the second cavity. The transmission assembly includes a motor, a first bearing, and a second bearing. The motor is disposed in the first cavity, and the first bearing is rotatably connected to the fixed plate. One end of the upper cutter shaft assembly is provided with a transmission rod, which is rotatably connected to the first bearing and is also drively connected to the motor. The second bearing is disposed at the other end of the upper cutter shaft assembly, and a drive gear is disposed around the second bearing. One end of the lower cutter shaft assembly is provided with a driven gear rotating component that is drively connected to the drive gear, and both ends of the lower cutter shaft assembly are rotatably connected to the two side walls of the second cavity.

[0008] In the cardboard slotting device, the upper blade assembly includes a first blade holder, which is connected to the upper blade shaft assembly via a first connecting sleeve. A first slotting blade and a second slotting blade are respectively provided on the outer edge of the first blade holder. The first slotting blade is fixedly connected to the first blade holder, and the second slotting blade is slidably connected to the outer edge of the first blade holder.

[0009] In the cardboard slotting device, the outer edge of the first knife holder is provided with a knife adjustment groove, and an internal gear ring is provided in the knife adjustment groove. The second slotting knife is connected to the internal gear ring. The transmission assembly also includes a box height motor, a planetary gear assembly, and a gear shaft. The box height motor is disposed in the first cavity. The planetary gear assembly is disposed on the transmission rod. One end of the gear shaft is rotatably connected to the first bearing portion, and a transmission gear assembly is provided at the end of the gear shaft near the first bearing portion. The box height motor is connected to the transmission gear assembly through the planetary gear assembly. The other end of the gear shaft extends towards the second cavity and passes through each of the first knife holders in sequence. The gear shaft is connected to each of the internal gear rings in a transmission manner.

[0010] In the cardboard slotting device, the planetary gear assembly includes a first intermediate bridge gear, a second intermediate bridge gear, a first connecting gear, and a second connecting gear. A drive gear is provided on the output shaft of the box height motor. The drive gear, the first intermediate bridge gear, the second intermediate bridge gear, the first connecting gear, the second connecting gear, and the transmission gear assembly are sequentially connected for transmission.

[0011] In the cardboard slotting device, the lower blade assembly includes a second blade holder, which is connected to the lower blade shaft assembly via a second connecting sleeve. The second blade holder is provided with a cutting groove that cooperates with the first slotting blade and the second slotting blade, and the first slotting blade or the second slotting blade is at least partially embedded in the cutting groove.

[0012] In the cardboard slotting device, a first waste baffle is provided above the upper cutter head assembly in the slotting working cavity, and a first transverse movement mechanism is provided along the length of the slotting working cavity. All the first waste baffles are slidably connected to the first transverse movement mechanism.

[0013] In the cardboard slotting device, a second waste baffle is provided in the slotting working cavity below the lower cutter disc assembly, and a second transverse movement mechanism is provided in the slotting working cavity along its length direction. All the second waste baffles are slidably connected to the second transverse movement mechanism respectively.

[0014] In the cardboard slotting device, one end of the first waste baffle is provided with a first position detection unit for detecting the working position of the upper cutter head assembly.

[0015] In the cardboard slotting device, one end of the second waste baffle is provided with a second position detection unit for detecting the working position of the lower cutter head assembly.

[0016] Beneficial effects:

[0017] This invention provides a cardboard slotting device. This device can process different numbers of cartons by adjusting the control of three upper and lower cutter shaft assemblies. When the input cardboard requires processing one carton, at least one upper cutter shaft assembly and its corresponding lower cutter shaft assembly can be selected to perform the slotting task. The upper cutter disc assembly on the corresponding upper cutter shaft assembly and the lower cutter disc assembly on the corresponding lower cutter shaft assembly slot the two sides of the cardboard to cut it into finished cartons. When the input cardboard requires processing two or three cartons, all three upper cutter shaft assemblies and their corresponding lower cutter shaft assemblies are activated simultaneously to perform the slotting task. The upper cutter disc assembly on the corresponding upper cutter shaft assembly and the lower cutter disc assembly on the corresponding lower cutter shaft assembly slot the two sides and the middle of the cardboard, allowing the cardboard to be formed into at least two finished cartons in one operation. This improves the processing efficiency of the cartons and allows the device to be adjusted according to the size parameters of the cardboard and the processing parameters of the cartons, increasing its flexibility during use. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of the cardboard slotting device provided by the present invention. Figure 1 ;

[0019] Figure 2 A schematic diagram of the overall structure of the cardboard slotting device provided by the present invention. Figure 2 ;

[0020] Figure 3 A schematic diagram of the working state of the upper cutter shaft assembly and the lower cutter shaft assembly of the cardboard slotting device provided by the present invention;

[0021] Figure 4 Schematic diagram of the assembly structure of the upper cutter shaft assembly and the lower cutter shaft assembly of the cardboard slotting device provided by the present invention. Figure 1 ;

[0022] Figure 5 Schematic diagram of the assembly structure of the upper cutter shaft assembly and the lower cutter shaft assembly of the cardboard slotting device provided by the present invention. Figure 2 ;

[0023] Figure 6 Schematic diagram of the assembly structure of the upper knife shaft assembly of the cardboard slotting device provided by the present invention Figure 1 ;

[0024] Figure 7Schematic diagram of the assembly structure of the upper knife shaft assembly of the cardboard slotting device provided by the present invention Figure 2 ;

[0025] Figure 8 for Figure 7 Sectional view in the AA direction;

[0026] Figure 9 A schematic diagram of the disassembled structure of the upper blade shaft assembly of the cardboard slotting device provided by the present invention.

[0027] Key component symbols: 1-Machine body, 11-Fixed plate, 2-Upper tool shaft assembly, 21-Transmission rod, 3-Lower tool shaft assembly, 4-Upper tool disc assembly, 41-First tool holder, 42-First connecting sleeve, 43-First grooving tool, 44-Second grooving tool, 45-Tool adjusting slide, 46-Internal gear ring, 5-Lower tool disc assembly, 51-Second tool holder, 52-Second connecting sleeve, 53-Grooving, 6-Transmission assembly, 61-Motor section, 62-First bearing section, 63-Second bearing section. 64-Driving gear, 65-Driven gear rotating component, 66-Box height motor, 67-Planetary gear assembly, 671-First bridge gear, 672-Second bridge gear, 673-First connecting gear, 674-Second connecting gear, 675-Drive gear, 68-Gear shaft, 69-Transmission gear assembly, 7-First waste baffle, 71-First position detection unit, 8-First lateral movement mechanism, 9-Second waste baffle, 91-Second position detection unit, 10-Second lateral movement mechanism. Detailed Implementation

[0028] This invention provides a cardboard slotting device. To make the objectives, technical solutions, and effects of this invention clearer and more explicit, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention.

[0029] In the description of this invention, it should be understood that the terms "middle," "inner side," "outer side," etc., indicate the orientation or positional relationship of this invention based on the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0030] Please see Figures 1 to 9This invention provides a cardboard slotting device, including a machine tool body 1. The machine tool body 1 is provided with a slotting working cavity. Three upper cutter shaft assemblies 2 are arranged sequentially along the conveying direction of the cardboard in the slotting working cavity, and a lower cutter shaft assembly 3 is respectively provided below each upper cutter shaft assembly 2. A cardboard channel is formed between the upper cutter shaft assembly 2 and the lower cutter shaft assembly 3. Each set of upper cutter shaft assembly 2 and lower cutter shaft assembly 3 is connected by a transmission assembly 6. Multiple upper cutter disc assemblies 4 are distributed along the length direction of the upper cutter shaft assembly 2, and multiple lower cutter disc assemblies 5 corresponding one-to-one with the upper cutter disc assemblies 4 are provided along the length direction of the lower cutter shaft assembly 3.

[0031] In actual use, the cardboard moves along the conveying direction of the cardboard channel. The rolling state of the three upper cutter shaft assemblies 2 is adjusted according to the length of the cardboard and the slotting parameters of the carton. When the input cardboard requires processing into one carton, at least one upper cutter shaft assembly 2 and its corresponding lower cutter shaft assembly 3 can be selected to perform the slotting task. The upper cutter disc assembly 4 on the corresponding upper cutter shaft assembly 2 and the lower cutter disc assembly 5 on the lower cutter shaft assembly 3 are used to slot the two sides of the cardboard to cut the cardboard into a finished carton. When the input cardboard requires processing into two or three cartons, all three upper cutter shaft assemblies 2 and their corresponding lower cutter shaft assemblies 3 are started simultaneously to perform the slotting task. The upper cutter disc assembly 4 on the corresponding upper cutter shaft assembly 2 and the lower cutter disc assembly 5 on the lower cutter shaft assembly 3 are used to slot the two sides and the middle of the cardboard, so that the cardboard is formed into at least two finished cartons in one go, thereby improving the processing efficiency of the carton. Furthermore, the device can be adjusted according to the size parameters of the cardboard and the processing parameters of the carton, improving the flexibility during use.

[0032] To facilitate understanding, through Figure 4 The following are auxiliary instructions for the cardboard shown: Parameter A represents the width of the cardboard; Parameter G represents the feed length; Parameters C, D and B represent the slotting distance; Parameter F represents the slotting depth; Parameter T represents the height of the carton; Parameter E represents the tongue width; Parameters C1 and C2 represent the blade width. When slotting, the appropriate number of upper blade shaft assemblies 2 and lower blade shaft assemblies 3 should be selected according to the above parameters to perform the slotting task.

[0033] like Figures 1 to 9As shown, the grooving working chamber further includes a first cavity and a second cavity, which are separated by a fixing plate 11; the upper cutter shaft assembly 2 and the lower cutter shaft assembly 3 are located in the second cavity; the transmission assembly 6 includes a motor part 61, a first bearing part 62, and a second bearing part 63. The motor part 61 is disposed in the first cavity, the first bearing part 62 is rotatably connected to the fixing plate 11, one end of the upper cutter shaft assembly 2 is provided with a transmission rod 21, the transmission rod 21 is rotatably connected to the first bearing part 62, and the transmission rod 21 is drively connected to the motor part 61; the second bearing part 63 is disposed at the other end of the upper cutter shaft assembly 2, and a drive gear 64 is disposed around the second bearing part 63; one end of the lower cutter shaft assembly 3 is provided with a drive gear 64. The driven gear 65 is connected to the gear 64, and the two ends of the lower blade shaft assembly 3 are rotatably connected to the two side walls of the second cavity respectively. The grooving working cavity is divided by the fixed plate 11 to achieve spatial isolation, prevent the waste generated by grooving from entering the first cavity, and improve the stability of the device during operation. During operation, the upper blade shaft assembly 2 and the lower blade shaft assembly 3 are synchronously driven by the transmission assembly 6. When the motor part 61 drives the transmission rod 21, the upper blade shaft assembly 2 will rotate on the fixed plate 11 under the action of the first bearing part 62. When rotating, it will drive the upper blade disc assembly 4 to perform a rotary cutting action. At the same time, the upper blade shaft assembly 2 also drives the driven gear and the lower blade shaft assembly 3 to rotate by the drive gear 64, so that the lower blade disc assembly 5 rolls synchronously with the upper blade disc assembly 4, thereby improving the grooving effect of the cardboard.

[0034] It should be noted that the motor part 61 can be an existing servo motor assembly, and its specific structure and working principle are existing technologies, which will not be described in detail here.

[0035] like Figures 1 to 9 As shown, the upper cutter head assembly 4 further includes a first cutter holder 41, which is connected to the upper cutter shaft assembly 2 via a first connecting sleeve 42. A first grooving cutter 43 and a second grooving cutter 44 are respectively provided on the outer edge of the first cutter holder 41. The first grooving cutter 43 is fixedly connected to the first cutter holder 41, and the second grooving cutter 44 is slidably connected to the outer edge of the first cutter holder 41. During operation, the distance between the first grooving cutter 43 and the second grooving cutter 44 is adjusted according to parameters such as the grooving distance and grooving depth to adjust the overall width of the blade. Different grooving requirements can be achieved by using two relatively movable blades, improving the flexibility of the device during use.

[0036] like Figures 1 to 9As shown, further, the outer edge of the first tool holder 41 is provided with a tool adjusting groove 45, and an internal gear ring 46 is provided in the tool adjusting groove 45. The second grooving tool 44 is connected to the internal gear ring 46. The transmission assembly 6 also includes a box height motor 66, a planetary gear assembly 67, and a gear shaft 68. The box height motor 66 is disposed in the first cavity, the planetary gear assembly 67 is disposed on the transmission rod 21, one end of the gear shaft 68 is rotatably connected to the first bearing part 62, and a transmission gear assembly 69 is provided at the end of the gear shaft 68 near the first bearing part 62. The box height motor 66 is connected to the transmission gear assembly 69 through the planetary gear assembly 67. The other end of the gear shaft 68 extends towards the second cavity and passes through each of the first tool holders 41 in sequence. The gear shaft 68 is connected to each of the internal gear rings 46 in turn. When adjusting the distance between the two blades, the box height motor 66 uses the planetary gears to adjust the distance between the two blades. Component 67 drives the gear 675 shaft to roll. When the gear shaft 68 rotates, it drives the inner gear ring 46 to roll in the blade adjusting groove 45, allowing the second grooving blade 44 to slide around the outer edge of the first blade holder 41. This adjusts the distance between the first grooving blade 43 and the second grooving blade 44, achieving different grooving effects based on the distance. If a longer grooving depth is required, the first grooving blade 43 and the second grooving blade 44 can be joined together to increase the overall width of the blade. If multiple shallow grooves need to be cut on the cardboard, the distance between the first grooving blade 43 and the second grooving blade 44 can be increased to achieve multiple cutting actions with different grooving depths. After the blade distance is adjusted, if the motor 61 is started, it will drive the upper blade shaft assembly 2 and the first bearing assembly 62 to rotate. At this time, the gear shaft 68 will rotate with the first bearing assembly 62. During the rotation, the transmission gear assembly 69 performs a cyclic meshing motion on the planetary gear assembly 67, thereby realizing the follow-up action of the gear shaft 68.

[0037] like Figures 1 to 9As shown, further, the planetary gear assembly includes a first intermediate bridge gear 671, a second intermediate bridge gear 672, a first connecting gear 673, and a second connecting gear 674. A drive gear 675 is mounted on the output shaft of the box-mounted motor 66. The drive gear 675, the first intermediate bridge gear 671, the second intermediate bridge gear 672, the first connecting gear 673, the second connecting gear 674, and the transmission gear assembly 69 are sequentially connected in a transmission manner. The drive gear 64, the first intermediate bridge gear 671, the second intermediate bridge gear 672, the first connecting gear 673, the second connecting gear 674, and the transmission gear assembly 69 mesh sequentially. When the distance between the first grooving cutter 43 and the second grooving cutter 44 needs to be adjusted, the box height motor 66 uses the drive gear 64 to drive the first bridge gear 671, the second bridge gear 672, the first connecting gear 673 and the second connecting gear 674 to rotate sequentially until the torque is transmitted to the transmission gear assembly 69, so as to drive the gear 675 shaft to rotate through the transmission gear assembly 69. When performing the grooving task, the box height motor 66 stops, and the gear shaft 68 will perform a fixed-axis rotation under the action of the first bearing part 62, while the transmission gear assembly 69 will move around the periphery of the second connecting gear 674 to realize the follow-up action of the gear shaft 68.

[0038] like Figures 1 to 9 As shown, the lower blade assembly 5 further includes a second blade holder 51, which is connected to the lower blade shaft assembly 3 via a second connecting sleeve 52. The second blade holder 51 is provided with a cutting groove 53 that cooperates with the first grooving blade 43 and the second grooving blade 44. The first grooving blade 43 or the second grooving blade 44 is at least partially embedded in the cutting groove 53. By providing the cutting groove 53 on the second blade holder 51, the cutting effect of the first grooving blade 43 and the second grooving blade 44 can be effectively improved. When the first grooving blade 43 or the second grooving blade 44 cuts the cardboard, the first grooving blade 43 or the second grooving blade 44 will squeeze the cutting area of ​​the cardboard into the cutting groove 53. With the rolling action of the upper blade shaft assembly 2 and the lower blade shaft assembly 3, the cardboard is cut, and the cutting waste is left in the cutting groove 53. The waste is separated from the second blade holder 51 by gravity.

[0039] like Figures 1 to 9As shown, further, a first waste baffle 7 is provided above the upper cutter head assembly 4 in the grooving working cavity, and a first transverse movement mechanism 8 is provided along its length in the grooving working cavity. All the first waste baffles 7 are slidably connected to the first transverse movement mechanism 8. If cardboard waste is stuck on the first grooving blade 43 or the second grooving blade 44, it can be removed by the first waste baffle 7. When the first grooving blade 43 or the second grooving blade 44 passes through the first waste baffle 7, the cardboard waste will be blocked, thereby guiding the cardboard waste from one side of the grooving working cavity and avoiding affecting the grooving action of the cardboard. In addition, the first transverse movement mechanism 8 can be used to adjust the stop position of the first waste baffle 7 to improve the stopping effect of the first waste baffle 7.

[0040] In this embodiment, the first transverse mechanism 8 can be a lead screw motor drive module. The specific structure and working principle are existing technologies and will not be described in detail here.

[0041] like Figures 1 to 9 As shown, further, a second waste baffle 9 is provided below the lower cutter head assembly 5 in the grooving working cavity, and a second transverse movement mechanism 10 is provided along the length of the grooving working cavity. All the second waste baffles 9 are slidably connected to the second transverse movement mechanism 10. If cardboard waste is stuck in the grooving 53, it can be removed by the second waste baffle 9. When the grooving 53 passes the second waste baffle 9, the cardboard waste will be blocked, so that the cardboard waste will be guided down from one side of the grooving working cavity to avoid affecting the grooving action of the cardboard. In addition, the second transverse movement mechanism 10 can be used to adjust the stop position of the second waste baffle 9 to improve the stopping effect of the first waste baffle 7.

[0042] In this embodiment, the second transverse mechanism 10 can be a lead screw motor drive module. The specific structure and working principle are existing technologies and will not be described in detail here.

[0043] like Figures 1 to 9 As shown, further, one end of the first waste baffle 7 is provided with a first position detection unit 71 for detecting the working position of the upper cutter disc assembly 4; the first position detection unit 71 monitors the working position of the first grooving cutter 43 and the second grooving cutter 44 in real time to determine whether the first grooving cutter 43 and the second grooving cutter 44 have cut in place, and counts the number of cuts by the first grooving cutter 43 and the second grooving cutter 44 in order to improve the control accuracy of the device.

[0044] like Figures 1 to 9As shown, further, one end of the second waste baffle 9 is provided with a second position detection unit 91 for detecting the working position of the lower cutter head assembly 5; the second position detection unit 91 monitors the working position of the second cutter head 51 in real time to determine whether the second cutter head 51 is in the correct position, avoids jamming of the second cutter head 51, and counts the number of cuts of the second cutter head 51 to improve the control accuracy of the device.

[0045] It should be noted that the first position detection unit 71 and the second position detection unit 91 can be existing position sensors, infrared sensors, etc. The specific structure and working principle are existing technologies and will not be described in detail here.

[0046] In summary, this device can process different quantities of cartons by adjusting the industrial control of the three upper cutter shaft assemblies 2 and lower cutter shaft assemblies 3. When the input cardboard requires processing one carton, at least one upper cutter shaft assembly 2 and its corresponding lower cutter shaft assembly 3 can be selected to perform the grooving task. The upper cutter disc assembly 4 on the corresponding upper cutter shaft assembly 2 and the lower cutter disc assembly 5 on the lower cutter shaft assembly 3 are used to groove the two sides of the cardboard to cut the cardboard into finished cartons. When the input cardboard requires processing two cartons or meets the conditions to process three cartons, all three upper cutter shaft assemblies 2 and their corresponding lower cutter shaft assemblies 3 are started simultaneously to perform the grooving task. The upper cutter disc assembly 4 on the corresponding upper cutter shaft assembly 2 and the lower cutter disc assembly 5 on the lower cutter shaft assembly 3 are used to groove the two sides and the middle of the cardboard, so that the cardboard is formed into at least two finished cartons in one go, thereby improving the processing efficiency of cartons. Furthermore, this device can be adjusted according to the size parameters of the cardboard and the processing parameters of the cartons, improving the flexibility during use.

[0047] It is understood that those skilled in the art can make equivalent substitutions or modifications to the technical solution and inventive concept of the present invention, and all such substitutions or modifications should fall within the protection scope of the appended claims.

Claims

1. A cardboard slotting device, characterized in that, The machine tool includes a machine body, which has a slotting working cavity. Three upper cutter shaft assemblies are arranged sequentially along the paperboard conveying direction within the slotting working cavity, and a lower cutter shaft assembly is disposed below each upper cutter shaft assembly. A paperboard channel is formed between the upper and lower cutter shaft assemblies. Each set of upper and lower cutter shaft assemblies is connected by a transmission assembly. Multiple upper cutter disc assemblies are distributed along the length of each upper cutter shaft assembly, and multiple lower cutter disc assemblies, each corresponding to one of the upper cutter disc assemblies, are disposed along the length of each lower cutter shaft assembly. The slotting working chamber includes a first cavity and a second cavity, which are separated by a fixed plate. The upper cutter shaft assembly and the lower cutter shaft assembly are located in the second cavity. The transmission assembly includes a motor part, a first bearing part, and a second bearing part. The motor part is disposed in the first cavity, and the first bearing part is rotatably connected to the fixed plate. One end of the upper cutter shaft assembly is provided with a transmission rod, which is rotatably connected to the first bearing part and is also drively connected to the motor part. The second bearing part is disposed at the other end of the upper cutter shaft assembly, and a drive gear is disposed around the periphery of the second bearing part. One end of the lower cutter shaft assembly is provided with a driven gear rotating component that is drively connected to the drive gear, and both ends of the lower cutter shaft assembly are rotatably connected to the two side walls of the second cavity, respectively. The upper cutter head assembly includes a first cutter holder, which is connected to the upper cutter shaft assembly via a first connecting sleeve. A first grooving cutter and a second grooving cutter are respectively provided on the outer edge of the first cutter holder. The first grooving cutter is fixedly connected to the first cutter holder, and the second grooving cutter is slidably connected to the outer edge of the first cutter holder. The outer edge of the first tool holder is provided with a tool adjusting groove, and an internal gear ring is provided in the tool adjusting groove. The second grooving tool is connected to the internal gear ring. The transmission assembly also includes a box height motor, a planetary gear assembly and a gear shaft. The box height motor is disposed in the first cavity. The planetary gear assembly is disposed on the transmission rod. One end of the gear shaft is rotatably connected to the first bearing part, and a transmission gear assembly is provided at the end of the gear shaft near the first bearing part. The box height motor is connected to the transmission gear assembly through the planetary gear assembly. The other end of the gear shaft extends towards the second cavity and passes through each of the first tool holders in sequence. The gear shaft is connected to each of the internal gear rings in a transmission manner. A first waste baffle is provided above the upper cutter head assembly in the slotting working cavity, and a first transverse movement mechanism is provided along the length of the slotting working cavity. All the first waste baffles are slidably connected to the first transverse movement mechanism respectively. One end of the first waste baffle is provided with a first position detection unit for detecting the working position of the upper cutter head assembly.

2. The cardboard slotting device according to claim 1, characterized in that, The planetary gear assembly includes a first intermediate bridge gear, a second intermediate bridge gear, a first connecting gear, and a second connecting gear. A drive gear is provided on the output shaft of the box-type motor. The drive gear, the first intermediate bridge gear, the second intermediate bridge gear, the first connecting gear, the second connecting gear, and the transmission gear assembly are sequentially connected for transmission.

3. The cardboard slotting device according to claim 2, characterized in that, The lower cutter head assembly includes a second cutter holder, which is connected to the lower cutter shaft assembly via a second connecting sleeve. The second cutter holder is provided with a cutting groove that cooperates with the first grooving cutter and the second grooving cutter, and the first grooving cutter or the second grooving cutter is at least partially embedded in the cutting groove.

4. The cardboard slotting device according to claim 1, characterized in that, A second waste baffle is provided in the slotting working cavity below the lower cutter head assembly, and a second transverse movement mechanism is provided in the slotting working cavity along its length. All the second waste baffles are slidably connected to the second transverse movement mechanism.

5. A cardboard slotting device according to claim 4, characterized in that, One end of the second waste baffle is provided with a second position detection unit for detecting the working position of the lower cutter head assembly.

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