Paperboard slotting device

Abstract

The paperboard grooving device comprises a machine tool body, a grooving working cavity is formed in the machine tool body, three upper cutter shaft assemblies are sequentially arranged in the grooving working cavity in the paperboard conveying direction, and a lower cutter shaft assembly is arranged below each upper cutter shaft assembly. A paperboard channel is formed between the upper cutter shaft assemblies and the lower cutter shaft assemblies, and each upper cutter shaft assembly and the corresponding lower cutter shaft assembly are in transmission connection through a transmission assembly. A plurality of upper cutter disc assemblies are distributed on the upper cutter shaft assembly in the length direction of the upper cutter shaft assembly, and a plurality of lower cutter disc assemblies corresponding to the upper cutter disc assemblies one to one are arranged on the lower cutter shaft assembly in the length direction of the lower cutter shaft assembly. According to the device, different numbers of cartons can be processed by adjusting the industrial control of the three upper cutter shaft assemblies and the lower cutter shaft assemblies, so that the processing efficiency of the cartons is improved, the device can be regulated and controlled according to the size parameters of paperboards and the processing parameters of the cartons, and the flexibility during use is improved.

Description

Technical Field

[0001] The invention relates to the technical field of carton production equipment, and in particular to a cardboard slotting device. Background Art

[0002] The existing cardboard slotting device can usually only cut one finished carton in a single processing cycle, and each time a different carton is produced, the slotting knife needs to be replaced or the position of the slotting knife needs to be adjusted to meet the production requirements of different cartons. It can be seen that the overall working efficiency of the traditional cardboard slotting device is low and the flexibility of use is poor.

[0003] It can be seen that the existing technology still needs to be improved and enhanced. Summary of the invention

[0004] In view of the above-mentioned deficiencies of the prior art, an object of the present invention is to provide a cardboard slotting device, which can cut one or two finished cartons in a single processing cycle and can flexibly adjust the slotting size of the slotting knife.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A cardboard slotting device comprises a machine tool body, wherein a slotting working chamber is arranged in the machine tool body, wherein three upper cutter shaft assemblies are arranged in sequence in the slotting working chamber along the conveying direction of the cardboard, and a lower cutter shaft assembly is arranged below each of the upper cutter shaft assemblies, a cardboard channel is formed between the upper cutter shaft assemblies and the lower cutter shaft assemblies, and each group of the upper cutter shaft assemblies and the lower cutter shaft assemblies are connected by a transmission assembly; a plurality of upper cutter disc assemblies are distributed on the upper cutter shaft assembly along its length direction, and a plurality of lower cutter disc assemblies corresponding to the upper cutter disc assemblies are arranged on the lower cutter shaft assembly along its length direction.

[0007] In the cardboard slotting device, the slotting working chamber includes a first chamber and a second chamber, and the first chamber and the second chamber are separated by a fixed plate; the upper knife shaft assembly and the lower knife shaft assembly are located in the second chamber; the transmission assembly includes a motor part, a first bearing part and a second bearing part, the motor part is arranged in the first chamber, the first bearing part is rotatably connected to the fixed plate, a transmission rod is arranged at one end of the upper knife shaft assembly, the transmission rod is rotatably connected to the first bearing part, and the transmission rod is transmission-connected to the motor part, the second bearing part is arranged at the other end of the upper knife shaft assembly, and a driving gear is arranged on the periphery of the second bearing part, a driven gear rotating part is arranged at one end of the lower knife shaft assembly, which is transmission-connected to the driving gear, and the two ends of the lower knife shaft assembly are rotationally connected to the two side walls of the second chamber respectively.

[0008] In the cardboard slotting device, the upper knife disc assembly includes a first knife seat, the first knife seat is connected to the upper knife shaft assembly through a first connecting sleeve, and a first slotting knife and a second slotting knife are respectively arranged on the outer edge of the first knife seat, the first slotting knife is fixedly connected to the first knife seat, and the second slotting knife is slidably connected to the outer edge of the first knife seat.

[0009] In the cardboard grooving device, a knife adjusting slot is provided at the outer edge of the first knife seat, an internal gear ring is provided in the knife adjusting slot, and the second grooving 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 arranged in the first cavity, the planetary gear assembly is arranged 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 close to the first bearing part, the box height motor is transmission-connected to the transmission gear assembly through the planetary gear assembly, the other end of the gear shaft extends toward the direction of the second cavity, and passes through each of the first knife seats in turn, and the gear shaft is transmission-connected to each of the internal gear rings respectively.

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

[0011] In the cardboard slotting device, the lower knife disc assembly includes a second knife seat, the second knife seat is connected to the lower knife shaft assembly through a second connecting sleeve, the second knife seat is provided with a cutting groove that cooperates with the first slotting knife and the second slotting knife, and the first slotting knife or the second slotting knife is at least partially embedded in the cutting groove.

[0012] In the cardboard slotting device, a first waste baffle is arranged above the upper cutter disc assembly in the slotting working chamber, a first transverse movement mechanism is arranged along the length direction of the slotting working chamber, and all first waste baffles are slidably connected to the first transverse movement mechanism respectively.

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

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

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

[0016] Beneficial effects:

[0017] The invention provides a cardboard slotting device. The device can realize different numbers of carton processing by adjusting the industrial control of three upper knife shaft assemblies and a lower knife shaft assembly. When the input cardboard needs to be processed to make one carton, at least one upper knife shaft assembly and its corresponding lower knife shaft assembly can be selected to perform the slotting task, and the upper knife disc assembly on the corresponding upper knife shaft assembly and the lower knife disc assembly on the lower knife shaft assembly are used to slot the two sides of the cardboard, so as to cut the cardboard into finished carton products; when the input cardboard needs to be processed to make two or meet the conditions to make three carton processing requirements, the three upper knife shaft assemblies and their corresponding lower knife shaft assemblies are started at the same time to perform the slotting task, and the upper knife disc assembly on the corresponding upper knife shaft assembly and the lower knife disc assembly on the lower knife shaft assembly are used to slot the two sides and the middle of the cardboard, so that the cardboard is formed into at least two finished carton products at one time, thereby improving the processing efficiency of the carton, and enabling the device to be regulated according to the size parameters of the cardboard and the processing parameters of the carton, thereby improving the flexibility in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The overall structure of the cardboard slotting device provided by the present invention is shown in FIG. Figure 1 ;

[0019] Figure 2 The overall structure of the cardboard slotting device provided by the present invention is schematically shown Figure 2 ;

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

[0021] Figure 4 Schematic diagram of the assembly structure of the upper knife shaft assembly and the lower knife 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 knife shaft assembly and the lower knife 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 cutter 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 cutter shaft assembly of the cardboard slotting device provided by the present invention Figure 2 ;

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

[0026] Fig. 9 This is a schematic diagram of the disassembled structure of the upper knife shaft assembly of the cardboard slotting device provided by the present invention.

[0027] Main component symbol description: 1-machine body, 11-fixed plate, 2-upper cutter shaft assembly, 21-transmission rod, 3-lower cutter shaft assembly, 4-upper cutter disc assembly, 41-first cutter seat, 42-first connecting sleeve, 43-first slotting cutter, 44-second slotting cutter, 45-knife adjustment slide, 46-internal gear ring, 5-lower cutter disc assembly, 51-second cutter seat, 52-second connecting sleeve, 53-grooving, 6-transmission assembly, 61-motor part, 62-first bearing part, 63-second bearing part, 64-driving gear, 65-driven gear rotating part, 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-driving gear, 68-gear shaft, 69-transmission gear assembly, 7-first waste baffle, 71-first position detection unit, 8-first transverse movement mechanism, 9-second waste baffle, 91-second position detection unit, 10-second transverse movement mechanism. DETAILED DESCRIPTION

[0028] The present invention provides a cardboard slotting device. To make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "middle", "inner side", "outer side", etc. are directions or positional relationships of the present invention based on the drawings, which are only for the convenience of describing the present invention and simplifying the description. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0030] See also Figures 1 to 9The present invention provides a cardboard slotting device, comprising a machine tool body 1, wherein a slotting working chamber is arranged in the machine tool body 1, wherein three upper cutter shaft assemblies 2 are arranged in sequence along the conveying direction of the cardboard in the slotting working chamber, and a lower cutter shaft assembly 3 is respectively arranged below each of the upper cutter shaft assemblies 2, a cardboard channel is formed between the upper cutter shaft assemblies 2 and the lower cutter shaft assemblies 3, and each group of the upper cutter shaft assemblies 2 and the lower cutter shaft assemblies 3 are connected by a transmission assembly 6; a plurality of upper cutter disc assemblies 4 are distributed on the upper cutter shaft assembly 2 along its length direction, and a plurality of lower cutter disc assemblies 5 corresponding to the upper cutter disc assemblies 4 are arranged on the lower cutter shaft assembly 3 along its length direction.

[0031] In actual use, the cardboard moves along the transmission direction of the cardboard channel, and the rolling states of the three upper knife shaft assemblies 2 are adjusted respectively according to the length of the cardboard and the slotting parameters of the carton. When the input cardboard needs to be processed into a carton, at least one upper knife shaft assembly 2 and its corresponding lower knife shaft assembly 3 can be selected to perform the slotting task, and the upper knife disc assembly 4 on the corresponding upper knife shaft assembly 2 and the lower knife disc assembly 5 on the lower knife shaft assembly 3 are used to slot the two sides of the cardboard to cut the cardboard into finished carton products; when the input cardboard needs to be processed into two or three cartons if the conditions are met, the three upper knife shaft assemblies 2 and their corresponding lower knife shaft assemblies 3 are started at the same time to perform the slotting task, and the upper knife disc assembly 4 on the corresponding upper knife shaft assembly 2 and the lower knife disc assembly 5 on the lower knife 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 carton products at one time, thereby improving the processing efficiency of the carton, and enabling the device to be regulated according to the size parameters of the cardboard and the processing parameters of the carton, thereby improving the flexibility in use.

[0032] For ease of understanding, Figure 4 Auxiliary instructions for the cardboard shown: Parameter A represents the cardboard width; Parameter G represents the paper feed length; Parameters C, D and B represent the slotting distance; Parameter F represents the slotting depth; Parameter T represents the carton height; Parameter E represents the tongue width; Parameters C1 and C2 represent the blade width; when slotting, the corresponding number of upper knife shaft assemblies 2 and lower knife shaft assemblies 3 must be selected according to the above parameters to perform the slotting task.

[0033] like Figures 1 to 9As shown, further, the slotting working chamber includes a first chamber and a second chamber, and the first chamber and the second chamber are separated by a fixed plate 11; the upper knife shaft assembly 2 and the lower knife shaft assembly 3 are located in the second chamber; 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 arranged in the first chamber, the first bearing part 62 is rotatably connected to the fixed plate 11, a transmission rod 21 is arranged at one end of the upper knife shaft assembly 2, the transmission rod 21 is rotatably connected to the first bearing part 62, and the transmission rod 21 is transmission-connected to the motor part 61, the second bearing part 63 is arranged at the other end of the upper knife shaft assembly 2, and a driving gear 64 is arranged on the periphery of the second bearing part 63, and one end of the lower knife shaft assembly 3 is provided with a first bearing part 62 and a second bearing part 63 connected to the driving gear The driven gear rotating member 65 is connected to the wheel 64 for transmission, and the two ends of the lower cutter shaft assembly 3 are respectively connected to the two side walls of the second cavity for rotation; the slotting working cavity is divided by the fixed plate 11 to achieve spatial isolation, so as to prevent the waste generated by the slotting from entering the first cavity and improve the stability of the device during operation; during operation, the upper cutter shaft assembly 2 and the lower cutter shaft assembly 3 are synchronously driven by the transmission assembly 6, and when the motor part 61 drives the transmission rod 21, the upper cutter shaft assembly 2 will perform a fixed axis rotation action on the fixed plate 11 under the action of the first bearing part 62, and will drive the upper cutter disc assembly 4 to perform a rotary cutting action during rotation. At the same time, the upper cutter shaft assembly 2 also uses the active gear 64 to drive the driven gear and the lower cutter shaft assembly 3 to rotate, so that the lower cutter disc assembly 5 synchronously follows the upper cutter disc assembly 4 to roll, so as to improve the slotting effect of the cardboard.

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

[0035] like Figures 1 to 9 As shown, further, the upper cutter disc assembly 4 includes a first cutter seat 41, and the first cutter seat 41 is connected to the upper cutter shaft assembly 2 through a first connecting sleeve 42, and a first slotting knife 43 and a second slotting knife 44 are respectively arranged on the outer edge of the first cutter seat 41, the first slotting knife 43 is fixedly connected to the first cutter seat 41, and the second slotting knife 44 is slidably connected to the outer edge of the first cutter seat 41; when working, the distance between the first slotting knife 43 and the second slotting knife 44 is adjusted according to parameters such as the slotting distance and slotting depth on duty to adjust the overall width of the blade, and the slotting requirements of different groove types can be met by two relatively movable blades, thereby improving the flexibility of the device when in use.

[0036] like Figures 1 to 9As shown, further, the outer edge of the first knife seat 41 is provided with a knife adjusting slot 45, the knife adjusting slot 45 is provided with an internal gear ring 46, and the second slotting knife 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 arranged in the first cavity, the planetary gear assembly 67 is arranged on the transmission rod 21, one end of the gear shaft 68 is rotatably connected to the first bearing portion 62, and the end of the gear shaft 68 close to the first bearing portion 62 is provided with a transmission gear assembly 69, the box height motor 66 is transmission-connected to the transmission gear assembly 69 through the planetary gear assembly 67, the other end of the gear shaft 68 extends toward the direction of the second cavity, and passes through each of the first knife seats 41 in turn, and the gear shaft 68 is transmission-connected to each of the internal gear rings 46 respectively; when adjusting the spacing between the two blades, the box height motor 66 uses the planetary gear assembly to rotate the first bearing portion 62. Component 67 drives the gear 675 to roll, and when the gear shaft 68 rotates, it will drive the inner gear ring 46 to roll in the knife adjustment slide groove 45, so that the second slotting knife 44 can slide around the outer edge of the first knife seat 41, so as to adjust the spacing between the first slotting knife 43 and the second slotting knife 44, and achieve different slotting effects according to different spacings. If the required slotting depth is longer, the first slotting knife 43 and the second slotting knife 44 can be spliced ​​to increase the overall width of the blade. If it is necessary to open multiple and shorter grooves on the cardboard, the spacing between the first slotting knife 43 and the second slotting knife 44 can be increased to achieve multiple cutting actions with different slotting depths; when the knife spacing is adjusted, if the motor part 61 is started, it will drive the upper knife shaft component 2 and the first bearing part 62 to rotate. At this time, the gear shaft 68 will rotate with the rotation of the first bearing part 62. During the rotation process, the transmission gear component 69 performs a cyclic meshing motion on the planetary gear component 67, so as to achieve the follow-up action of the gear shaft 68.

[0037] like Figures 1 to 9As shown, further, the planetary gear assembly includes a first bridge gear 671, a second bridge gear 672, a first connecting gear 673, and a second connecting gear 674. A driving gear 675 is provided on the output shaft of the box height motor 66. The driving gear 675, the first bridge gear 671, the second bridge gear 672, the first connecting gear 673, the second connecting gear 674 and the transmission gear assembly 69 are sequentially connected in transmission; the driving gear 64, the first bridge gear 671, the second bridge gear 672, the first connecting gear 673, the second connecting gear 674 and the transmission gear assembly 69 are sequentially meshed and transmitted. movement; when it is necessary to adjust the spacing between the first slotting knife 43 and the second slotting knife 44, the box height motor 66 uses the driving 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 in sequence 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 the slotting task is performed, the box height motor 66 stops, and the gear shaft 68 will perform a fixed-axis rotation action under the action of the first bearing portion 62, and 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, further, the lower knife disc assembly 5 includes a second knife seat 51, and the second knife seat 51 is connected to the lower knife shaft assembly 3 through a second connecting sleeve 52. The second knife seat 51 is provided with a cutting groove 53 that is matched and connected with the first slotting knife 43 and the second slotting knife 44, and the first slotting knife 43 or the second slotting knife 44 is at least partially embedded in the cutting groove 53; by providing the cutting groove 53 on the second knife seat 51, the cutting effect of the first slotting knife 43 and the second slotting knife 44 can be effectively improved. When the first slotting knife 43 or the second slotting knife 44 cuts the cardboard, the first slotting knife 43 or the second slotting knife 44 will squeeze the cutting area of ​​the cardboard into the cutting groove 53, and cooperate with the rolling action of the upper knife shaft assembly 2 and the lower knife shaft assembly 3, so as to realize the cutting action of the cardboard, and keep the cutting waste in the cutting groove 53, and separate the waste from the second knife seat 51 by the action of gravity.

[0039] like Figures 1 to 9As shown, further, a first waste baffle 7 is arranged above the upper cutter disc assembly 4 in the slotting working chamber, and a first transverse movement mechanism 8 is arranged in the slotting working chamber along its length direction, and all the first waste baffles 7 are slidably connected to the first transverse movement mechanism 8 respectively; if there is cardboard waste stuck on the first slotting knife 43 or the second slotting knife 44, it can be removed by the first waste baffle 7, and when the first slotting knife 43 or the second slotting knife 44 passes through the first waste baffle 7, the cardboard waste will be blocked, so that the cardboard waste will be guided down from one side of the slotting working chamber to avoid affecting the slotting action of the cardboard; in addition, the first transverse movement mechanism 8 can also 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 movement mechanism 8 can be a screw motor transmission module, and the specific structure and working principle are all 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 arranged in the slotting working chamber below the lower cutter disc assembly 5, and a second transverse movement mechanism 10 is arranged in the slotting working chamber along its length direction, and all the second waste baffles 9 are slidably connected to the second transverse movement mechanism 10 respectively; if there is cardboard waste stuck in the cutting groove 53, it can be removed by the second waste baffle 9, and when the cutting groove 53 passes through 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 slotting working chamber to avoid affecting the slotting action of the cardboard; in addition, the second transverse movement mechanism 10 can also 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 movement mechanism 10 may be a screw motor transmission module, and the specific structure and working principle are all existing technologies, which will not be described in detail here.

[0043] like Figures 1 to 9 As shown, further, one end of the first waste baffle plate 7 is provided with a first position detection unit 71 for detecting the working position of the upper knife disc assembly 4; the first position detection unit 71 is used to monitor the working positions of the first slotting knife 43 and the second slotting knife 44 in real time to determine whether the first slotting knife 43 and the second slotting knife 44 have cut in place, and the number of cutting times of the first slotting knife 43 and the second slotting knife 44 is counted, so as 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 disc assembly 5; the second position detection unit 91 is used to monitor the working position of the second knife seat 51 in real time to determine whether the second knife seat 51 is working properly, to avoid the problem of jamming of the second knife seat 51, and to count the number of cutting times of the second knife seat 51, so as 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 in-position sensors, infrared sensors, etc., and their specific structures and working principles are all existing technologies and will not be described in detail here.

[0046] In summary, the device can realize different numbers of carton processing by adjusting the industrial control of the three upper cutter shaft assemblies 2 and the lower cutter shaft assembly 3. When the input cardboard needs to be processed 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, and 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 finished carton products; when the input cardboard needs to be processed into two or three cartons if the conditions are met, the three upper cutter shaft assemblies 2 and their corresponding lower cutter shaft assemblies 3 are started at the same time to perform the slotting task, and 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 carton products at one time, thereby improving the processing efficiency of the carton, and enabling the device to be regulated according to the size parameters of the cardboard and the processing parameters of the carton, thereby improving the flexibility in use.

[0047] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the protection scope of the claims attached to the present invention.

Claims

1. A cardboard slotting device, characterized in that: The invention comprises a machine tool body, wherein a slotting working chamber is arranged in the machine tool body, wherein three upper cutter shaft assemblies are arranged in sequence in the slotting working chamber along the conveying direction of the cardboard, and a lower cutter shaft assembly is arranged below each of the upper cutter shaft assemblies, a cardboard channel is formed between the upper cutter shaft assemblies and the lower cutter shaft assemblies, and each group of the upper cutter shaft assemblies and the lower cutter shaft assemblies are connected by a transmission assembly; a plurality of upper cutter disc assemblies are distributed on the upper cutter shaft assembly along its length direction, and a plurality of lower cutter disc assemblies corresponding to the upper cutter disc assemblies are arranged on the lower cutter shaft assembly along its length direction.

2. A cardboard slotting device according to claim 1, characterized in that: The slotting working chamber includes a first chamber and a second chamber, and the first chamber and the second chamber are separated by a fixed plate; the upper knife shaft assembly and the lower knife shaft assembly are located in the second chamber; the transmission assembly includes a motor part, a first bearing part and a second bearing part, the motor part is arranged in the first chamber, the first bearing part is rotatably connected to the fixed plate, a transmission rod is arranged at one end of the upper knife shaft assembly, the transmission rod is rotatably connected to the first bearing part, and the transmission rod is transmission-connected to the motor part, the second bearing part is arranged at the other end of the upper knife shaft assembly, and a driving gear is arranged on the periphery of the second bearing part, a driven gear rotating part is arranged at one end of the lower knife shaft assembly, which is transmission-connected to the driving gear, and the two ends of the lower knife shaft assembly are rotationally connected to the two side walls of the second chamber respectively.

3. A cardboard slotting device according to claim 2, characterized in that: The upper cutter disc assembly includes a first cutter seat, which is connected to the upper cutter shaft assembly via a first connecting sleeve. A first slotting knife and a second slotting knife are respectively provided on the outer edge of the first cutter seat. The first slotting knife is fixedly connected to the first cutter seat, and the second slotting knife is slidably connected to the outer edge of the first cutter seat.

4. A cardboard slotting device according to claim 3, characterized in that: A knife adjusting groove is provided at the outer edge of the first knife seat, an internal gear ring is provided in the knife adjusting groove, and the second grooving 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 arranged in the first cavity, the planetary gear assembly is arranged 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 close to the first bearing part, the box height motor is transmission-connected to the transmission gear assembly through the planetary gear assembly, the other end of the gear shaft extends toward the direction of the second cavity, and passes through each of the first knife seats in turn, and the gear shaft is transmission-connected to each of the internal gear rings respectively.

5. A cardboard slotting device according to claim 4, characterized in that: The planetary gear assembly includes a first bridge gear, a second bridge gear, a first connecting gear and a second connecting gear. A driving gear is arranged on the output shaft of the box height motor. The driving gear, the first bridge gear, the second bridge gear, the first connecting gear, the second connecting gear and the transmission gear assembly are sequentially connected in transmission.

6. A cardboard slotting device according to claim 3, characterized in that: The lower cutter disc assembly includes a second cutter seat, which is connected to the lower cutter shaft assembly via a second connecting sleeve. The second cutter seat is provided with a cutting groove that cooperates with the first slotting knife and the second slotting knife, and the first slotting knife or the second slotting knife is at least partially embedded in the cutting groove.

7. A cardboard slotting device according to claim 1, characterized in that: A first waste baffle is arranged above the upper cutter disc assembly in the slotting working chamber, and a first transverse movement mechanism is arranged along the length direction of the slotting working chamber. All first waste baffles are slidably connected to the first transverse movement mechanism respectively.

8. A cardboard slotting device according to claim 1, characterized in that: A second waste baffle is arranged in the slotting working chamber below the lower cutter disc assembly, and a second transverse movement mechanism is arranged in the slotting working chamber along its length direction, and all the second waste baffles are respectively slidably connected to the second transverse movement mechanism.

9. A cardboard slotting device according to claim 7, characterized in that: A first position detection unit for detecting the working position of the upper cutter disc assembly is disposed at one end of the first waste baffle.

10. A cardboard slotting device according to claim 8, characterized in that: A second position detection unit for detecting the working position of the lower cutter disc assembly is disposed at one end of the second waste baffle.

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