Carton longitudinal cutting mechanism and carton forming machine

Abstract

The utility model provides a carton longitudinal cutting mechanism and a carton forming machine, the carton longitudinal cutting mechanism comprises a rack, a transverse moving device, a mounting seat and a longitudinal cutting device, the rack is provided with an upper cross beam and a supporting beam, the supporting beam is located below the upper cross beam, the transverse moving device is connected to the upper cross beam in a sliding mode, the mounting seat is connected to the transverse moving device, and the longitudinal cutting device is connected to the lower portion of the mounting seat; the longitudinal cutting device comprises a swinging vertical plate, a gear driving assembly, a telescopic driving piece and a longitudinal cutting cutter disc, the swinging vertical plate is hinged to the mounting base, the upper end of the telescopic driving piece is hinged to the mounting base, and the lower end of the telescopic driving piece is hinged to the swinging vertical plate; the gear driving assembly is connected to the other side of the swing vertical plate and connected with the longitudinal cutter disc. According to the carton longitudinal cutting mechanism, the telescopic driving piece is used for driving the swing vertical plate to vertically swing so as to adjust the height of the longitudinal cutting cutterhead, the longitudinal cutting cutterhead is driven through the gear driving assembly, the driving stability can be improved, and the service life of components can be prolonged conveniently.

Description

TECHNICAL FIELD

[0001] The utility model belongs to carton processing technical field, more specifically, relate to a carton longitudinal cutting mechanism and carton forming machine. BACKGROUND

[0002] With the rapid development of logistics and other industries, the demand for cartons on the market is also gradually increasing. In the production process of cartons, the paperboard often needs to be cut longitudinally to facilitate the subsequent folding and forming of cartons. The existing longitudinal cutting structure generally uses a transmission belt for driving. The belt is prone to loosen and slip after a certain period of use, affecting the quality of longitudinal cutting, so it needs to be replaced frequently, increasing the processing cost of cartons. At the same time, when the thickness of the paperboard changes, the knife disc needs to be adjusted frequently, affecting the processing efficiency. SUMMARY

[0003] The utility model aims at providing a carton longitudinal cutting mechanism and carton forming machine, which can effectively drive the longitudinal cutting knife disc, prolong the service life of the structure, and improve the convenience of height adjustment of the longitudinal cutting knife disc.

[0004] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of providing a carton longitudinal cutting mechanism, which comprises a rack, a transverse moving device, a mounting seat and a longitudinal cutting device. The rack is provided with a horizontally extending upper cross beam and a supporting beam. The supporting beam is located below the upper cross beam and is used to support the paperboard. The transverse moving device is slidingly connected to the upper cross beam. The mounting seat is connected to the transverse moving device. The longitudinal cutting device is connected to the lower side of the mounting seat and is used to cut the paperboard.

[0005] The longitudinal cutting device comprises a swing vertical plate, a gear drive assembly, a telescopic drive member and a longitudinal cutting knife disc. The swing vertical plate is hinged to the mounting seat. The upper end of the telescopic drive member is hinged to the mounting seat, and the lower end is hinged to the swing vertical plate. The telescopic drive member is used to drive the swing vertical plate to swing vertically. The longitudinal cutting knife disc is rotatably connected to one side of the swing vertical plate. The gear drive assembly is connected to the other side of the swing vertical plate and is connected to the longitudinal cutting knife disc. The gear drive assembly is used to drive the longitudinal cutting knife disc to rotate to cut the paperboard.

[0006] In one possible implementation, the gear drive assembly comprises a main gear, an intermediate gear and a slave gear rotatably connected to the swing vertical plate respectively. The intermediate gear is located between the main gear and the slave gear and is meshed with the main gear and the slave gear respectively. The longitudinal cutting knife disc is coaxially arranged with the slave gear and can rotate under the drive of the slave gear.

[0007] In one possible implementation, the rack is also provided with a horizontally extending drive shaft. The drive shaft penetrates the mounting seat, the swing vertical plate and the main gear. The outer end of the drive shaft is connected with a first rotary drive member. The drive shaft can drive the main gear to rotate under the action of the first rotary drive member.

[0008] In some embodiments, the driving shaft is a polygonal shaft, the outer periphery of the driving shaft is sleeved with two adjacent rotating shaft sleeves, the mounting seat has a downwardly extending mounting stand, one of the rotating shaft sleeves is arranged through the mounting stand and rotationally matched with the mounting stand, and the other rotating shaft sleeve is arranged through the swing stand and rotationally matched with the swing stand.

[0009] In some embodiments, the output end of the telescopic driving member extends downwardly, a horizontally extending driving shaft is rotationally connected to the swing stand, and the output end of the telescopic driving member is rotationally connected to the driving shaft through a knuckle bearing.

[0010] In a possible implementation, a pressing plate capable of pressing against the top surface of the paperboard is arranged below the swing stand and extends along the moving direction of the paperboard.

[0011] In a possible implementation, two supporting beams are arranged, and the two supporting beams are respectively arranged on the feeding side and the discharging side of the slitting cutter disc. The supporting beam on the feeding side of the slitting device is provided with a cutting plate comb extending below the slitting cutter disc, and the cutting plate comb has a plurality of avoiding gaps for avoiding the slitting cutter disc.

[0012] In a possible implementation, the transverse moving device comprises a transverse moving rack, a transverse moving gear and a second rotating driving member. The transverse moving rack is connected to the upper cross beam, the transverse moving gear is rotationally connected to the mounting seat and engaged with the transverse moving rack, and the second rotating driving member is connected to the mounting seat and used to drive the transverse moving gear to rotate so as to horizontally move the mounting seat along the upper cross beam.

[0013] In a possible implementation, the upper cross beam is further provided with sliding guide rails, and the mounting seat is provided with guide sliding blocks in sliding cooperation with the sliding guide rails. The sliding guide rails are spaced apart in the up-down direction, and the guide sliding blocks are also provided with two guide sliding blocks in one-to-one sliding cooperation with the two sliding guide rails.

[0014] Compared with the prior art, the scheme shown in the embodiments of the present application can drive the mounting seat and the slitting device to move transversely synchronously, adjust the transverse position of the slitting device, drive the swing stand to swing vertically, and then adjust the height of the slitting cutter disc to be suitable for paperboards of different thicknesses. The use of the gear driving assembly to drive the slitting cutter disc can improve the stability of driving, prolong the service life of the extension member, and ensure the cutting effect of the paperboard.

[0015] The utility model also provides a carton forming machine, carton forming machine includes carton longitudinal cutting mechanism. The carton forming mechanism utilizes horizontal moving device to drive mounting seat and longitudinal cutting device synchronous horizontal movement, realizes the adjustment of longitudinal cutting device horizontal position, telescopic drive piece can drive swing vertical swing of standing board, and then adjusts the height of longitudinal cutting cutter to be applicable to different thicknesses of paperboard, adopts gear drive assembly to drive longitudinal cutting cutter can improve the stability of driving, convenient for prolonging the service life of component, guarantees the cutting effect of paperboard. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to make the technical problems, technical schemes and beneficial effects to be solved in the embodiments of the utility model more clearly understood, the following will be briefly introduced to the drawings needed to be used in the embodiment or prior art description, obviously, the drawings in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creativity of labor, other drawings can also be obtained according to these drawings.

[0017] Figure 1 The structure schematic diagram of the carton longitudinal cutting mechanism provided in the embodiments of the utility model is shown in the figure.

[0018] Figure 2 The structure schematic diagram of the carton longitudinal cutting mechanism provided in the embodiments of the utility model is shown in the figure. Figure 1 The partial enlarged structure schematic diagram of the carton longitudinal cutting mechanism provided in the embodiments of the utility model is shown in the figure.

[0019] Figure 3 The structure schematic diagram of the carton longitudinal cutting mechanism provided in the embodiments of the utility model is shown in the figure. Figure 1 The structure schematic diagram of the carton longitudinal cutting mechanism provided in the embodiments of the utility model is shown in the figure.

[0020] In the figure, various reference signs are as follows:

[0021] 1, rack, 11, upper crossbeam, 12, support beam, 13, drive shaft, 14, first rotary drive, 15, rotating shaft sleeve, 16, pressure plate, 17, cutting plate comb, 18, sliding guide, 2, horizontal moving device, 21, horizontal moving rack, 22, horizontal moving gear, 23, second rotary drive, 3, mounting seat, 31, mounting standing board, 32, guide sliding block, 4, longitudinal cutting device, 41, swing standing board, 42, gear drive assembly, 43, telescopic drive piece, 44, longitudinal cutting cutter, 45, main gear, 46, intermediate gear, 47, driven gear, 48, drive rotating shaft, 49, knuckle bearing. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical schemes and beneficial effects to be solved in the embodiments of the utility model more clearly understood, the following will be briefly introduced to the drawings needed to be used in the embodiment or prior art description, obviously, the drawings in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creativity of labor, other drawings can also be obtained according to these drawings.

[0023] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer" and the like refer to the orientation or position shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can be explicitly or implicitly included one or more of the features. In the description of the present application, the meaning of "several" is two or more than two, unless otherwise specifically limited.

[0024] Please refer to Figures 1 to 3 , the paper box longitudinal cutting mechanism and the paper box forming machine provided by the present application will be described. The paper box longitudinal cutting mechanism comprises a rack 1, a transverse moving device 2, a mounting seat 3 and a longitudinal cutting device 4, the rack 1 is provided with a horizontally extending upper cross beam 11 and a supporting beam 12, the supporting beam 12 is located below the upper cross beam 11 and is used for supporting the paperboard, the transverse moving device 2 is slidingly connected to the upper cross beam 11, the mounting seat 3 is connected to the transverse moving device 2, and the longitudinal cutting device 4 is connected below the mounting seat 3 and is used for cutting the paperboard;

[0025] The longitudinal cutting device 4 comprises a swing vertical plate 41, a gear driving assembly 42, a telescopic driving member 43 and a longitudinal cutting cutter 44, the swing vertical plate 41 is hinged to the mounting seat 3, the upper end of the telescopic driving member 43 is hinged to the mounting seat 3 and the lower end is hinged to the swing vertical plate 41, the telescopic driving member 43 is used for driving the swing vertical plate 41 to vertically swing, the longitudinal cutting cutter 44 is rotatably connected to one side of the swing vertical plate 41, the gear driving assembly 42 is connected to the other side of the swing vertical plate 41 and is connected with the longitudinal cutting cutter 44, and the gear driving assembly 42 is used for driving the longitudinal cutting cutter 44 to rotate to cut the paperboard.

[0026] Compared with the prior art, the paper box longitudinal cutting mechanism provided by the present embodiment can drive the mounting seat 3 and the longitudinal cutting device 4 to move synchronously, realize the adjustment of the horizontal position of the longitudinal cutting device 4, drive the swing vertical plate 41 to vertically swing through the telescopic driving member 43, and then adjust the height of the longitudinal cutting cutter 44 to be suitable for paperboards of different thicknesses. The use of the gear driving assembly 42 to drive the longitudinal cutting cutter 44 can improve the stability of the driving, prolong the service life of the telescopic member, and ensure the cutting effect of the paperboard.

[0027] In the embodiment, the gear driving assembly 42 drives the slitting cutter 44 to rotate. Compared with the traditional mode of driving the slitting cutter to rotate by a belt, the driving of the gear driving assembly 42 is more stable, the problem of easy slippage of the belt after long-time use can be avoided, the cutting quality of the paperboard is ensured, the situation of frequent replacement of components is avoided, and the processing efficiency of the carton is improved.

[0028] The mounting seat 3 and the slitting device 4 can be arranged on the feeding side of the upper cross beam 11 or on the discharging side of the upper cross beam 11. In the embodiment, the mounting seat 3 and the slitting device 4 are arranged on the discharging side of the upper cross beam 11. The telescopic driving member 43 is used to drive the swing vertical plate 41 to move towards the direction of the paperboard, so that the slitting cutter 44 is in full contact with the paperboard, and the cutting effect of the slitting cutter 44 on the paperboard is ensured.

[0029] In a possible implementation, as shown in Figures 1 to 3 , the gear driving assembly 42 comprises a main gear 45, an intermediate gear 46 and a slave gear 47 which are rotationally connected to the swing vertical plate 41 respectively. The intermediate gear 46 is located between the main gear 45 and the slave gear 47 and is in mesh with the main gear 45 and the slave gear 47 respectively. The slitting cutter 44 is coaxially arranged with the slave gear 47 and can rotate under the driving of the slave gear 47.

[0030] In the embodiment, the gear driving assembly 42 adopts the combination of the main gear 45, the intermediate gear 46 and the slave gear 47. The main gear 45 is used to provide power and can be driven by a motor or the like. The main gear 45 transmits power to the intermediate gear 46 through the meshing action of the main gear 45 and the intermediate gear 46. The intermediate gear 46 further transmits power to the slave gear 47 through the meshing action of the intermediate gear 46 and the slave gear 47, so that the slave gear 47 drives the slitting cutter 44 to rotate, and finally realizes the longitudinal cutting of the paperboard. The driving action of the above structure is more stable, the rotating action of the slitting cutter 44 is more smooth, the problem of slippage caused by the traditional belt driving can be avoided, the stability of the cutting speed is ensured, the cutting efficiency is improved, and the cutting quality is ensured.

[0031] In a possible implementation, as shown in Figures 1 to 3 , the rack 1 is further provided with a horizontally extending driving shaft 13. The driving shaft 13 penetrates the mounting seat 3, the swing vertical plate 41 and the main gear 45. The outer end of the driving shaft 13 is connected with a first rotary driving member 14. The driving shaft 13 can drive the main gear 45 to rotate under the action of the first rotary driving member 14.

[0032] In the embodiment, the first rotary driving member 14 drives the driving shaft 13 to rotate circumferentially to drive the main gear 45. The first rotary driving member 14 is connected to the outer side of the frame 1 and connected to the outer end of the driving shaft 13. The first rotary driving member 14 can be a motor or the like, which drives the main gear 45 through the driving shaft 13, and then drives the longitudinal cutter head 44 through the intermediate gear 46 and the slave gear, to realize the rotary drive of the longitudinal cutter head 44.

[0033] In some embodiments, the driving shaft 13 is a polygonal shaft, and two adjacent rotary shaft sleeves 15 are sleeved on the outer periphery of the driving shaft 13. The mounting stand 3 has a downwardly extending mounting vertical plate 31. One of the rotary shaft sleeves 15 penetrates through the mounting vertical plate 31 and is in rotary cooperation with the mounting vertical plate 31. The other rotary shaft sleeve 15 penetrates through the swing vertical plate 41 and is in rotary cooperation with the swing vertical plate 41.

[0034] In the embodiment, the driving shaft 13 adopts a polygonal shaft structure, which can ensure good synchronization with the main gear 45 and realize effective driving of the main gear 45. The mounting vertical plate 31 below the mounting stand 3 facilitates the installation of the driving shaft 13. The rotary shaft sleeve 15 sleeved on the driving shaft 13 can be in rotary cooperation with the mounting vertical plate 31, thereby ensuring the driving effect of the driving shaft 13 on the main gear.

[0035] At the same time, the driving shaft 13 is also sleeved with another rotary shaft sleeve 15 which is in rotary cooperation with the swing vertical plate 41, thereby facilitating the vertical swinging of the swing vertical plate 41 under the driving of the telescopic driving member 43, avoiding structural interference between the driving shaft 13 and the swing vertical plate 41, and ensuring effective adjustment of the height of the longitudinal cutter head 44.

[0036] In some embodiments, the output end of the telescopic driving member 43 extends downward, the swing vertical plate 41 is rotatably connected with a horizontally extending driving shaft 48, and the output end of the telescopic driving member 43 is rotatably connected to the driving shaft 48 through a knuckle bearing 49. The driving end of the telescopic driving member 43 is connected to the driving shaft 48 through the knuckle bearing 49, which can make the relative rotation between the swing vertical plate 41 and the telescopic driving member 43 more smooth, avoid the jamming problem during adjustment, and thus realize effective adjustment of the height of the longitudinal cutter head 44.

[0037] In a possible implementation, as shown in Figures 1 to 3 , a pressing plate 16 which can press against the top surface of the paperboard is arranged below the swing vertical plate 41 and extends along the moving direction of the paperboard. The pressing plate 16 below the swing vertical plate 41 can form a pressing action with the top surface of the paperboard, thereby ensuring the position accuracy of the paperboard, improving the size accuracy during cutting, and ensuring good cutting quality.

[0038] In a possible implementation, as shown in Figures 1 to 3The supporting beam 12 is provided with two, and the two supporting beams 12 are respectively located on the feeding side and the discharging side of the slitting cutter head 44. The supporting beam 12 on the feeding side of the slitting device 4 is provided with a cutting plate comb 17 extending to the lower side of the slitting cutter head 44. The cutting plate comb 17 has a plurality of avoiding gaps for avoiding the slitting cutter head 44.

[0039] In the embodiment, the supporting beam is provided with two, which can effectively support the paperboard at different positions. The cutting plate comb 17 provided on one of the supporting beams 12 can form a supporting effect on the paperboard, and can also fully avoid the slitting cutter head 44, thereby ensuring the structural stability of the cutting area of the paperboard and avoiding the deformation of the paperboard due to the cutting force of the slitting cutter head 44, which helps to improve the cutting precision.

[0040] Specifically, the avoiding gap of the cutting plate comb 17 is a through structure, so that the slitting cutter head 44 can be lowered below the bottom surface of the cutting plate comb 17, thereby achieving sufficient cutting of the paperboard. In addition, the avoiding gap has an opening arranged on the side towards the discharging direction of the paperboard, which can fully avoid the slitting cutter head 44 and ensure the cutting quality of the paperboard.

[0041] In a possible implementation manner, please refer to Figures 1 to 3 The transverse moving device 2 includes a transverse rack 21, a transverse gear 22 and a second rotating driving member 23. The transverse rack 21 is connected to the upper cross beam 11. The transverse gear 22 is rotationally connected to the mounting seat 3 and is engaged with the transverse rack 21. The second rotating driving member 23 is connected to the mounting seat 3 and is used to drive the transverse gear 22 to rotate, so that the mounting seat 3 moves horizontally along the upper cross beam 11.

[0042] In the embodiment, the transverse moving device 2 drives the transverse gear 22 to rotate by using the second rotating driving member 23, and then moves the mounting seat 3 and the slitting cutter device along the upper cross beam 11 by the meshing action of the transverse gear 22 and the transverse rack 21, thereby adjusting the cutting position.

[0043] In a possible implementation manner, please refer to Figures 1 to 3 The upper cross beam 11 is further provided with a sliding guide rail 18, and the mounting seat 3 is provided with a guide sliding block 32 in sliding cooperation with the sliding guide rail 18. The sliding guide rail 18 is spaced apart in the up-down direction, and the guide sliding block 32 is also provided with two and is in sliding cooperation with the two sliding guide rails 18. The sliding guide rail 18 can effectively guide the sliding direction of the mounting seat 3, ensure the meshing action of the transverse gear 22 and the transverse rack 21, and improve the smoothness of the mounting seat 3 in the transverse moving process.

[0044] Based on the same inventive concept, the paper box forming machine comprises a paper box longitudinal cutting mechanism. The paper box forming mechanism drives the mounting seat 3 and the longitudinal cutting device 4 to move synchronously by using the transverse movement device 2, adjusts the transverse position of the longitudinal cutting device 4, drives the vertical swing of the swing vertical plate 41 by the telescopic driving part 43, and then adjusts the height of the longitudinal cutting cutter 44 to be suitable for paperboards with different thicknesses. The driving stability is improved by driving the longitudinal cutting cutter 44 by the gear driving assembly 42, the service life of the telescopic member is prolonged, and the cutting effect of the paperboard is ensured.

[0045] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A carton slitting mechanism, characterised in that, The application relates to a paperboard cutting device, which comprises a rack (1), a transverse moving device (2), a mounting base (3) and a longitudinal cutting device (4), the rack (1) is provided with a horizontally-extended upper cross beam (11) and a supporting beam (12) below the upper cross beam (11) and used for supporting paperboard, the transverse moving device (2) is slidingly connected to the upper cross beam (11), the mounting base (3) is connected to the transverse moving device (2), and the longitudinal cutting device (4) is connected below the mounting base (3) and used for cutting paperboard. The longitudinal cutting device (4) comprises a swing vertical plate (41), a gear driving assembly (42), a telescopic driving element (43) and a longitudinal cutting cutter (44), the swing vertical plate (41) is hinged to the mounting base (3), the upper end of the telescopic driving element (43) is hinged to the mounting base (3), the lower end is hinged to the swing vertical plate (41), the telescopic driving element (43) is used for vertically swinging the swing vertical plate (41), the longitudinal cutting cutter (44) is rotationally connected to one side of the swing vertical plate (41), the gear driving assembly (42) is connected to the other side of the swing vertical plate (41) and connected to the longitudinal cutting cutter (44), and the gear driving assembly (42) is used for driving the longitudinal cutting cutter (44) to rotate to cut paperboard.

2. The carton slitting mechanism of claim 1, wherein, The gear driving assembly (42) comprises a main gear (45), an intermediate gear (46) and a slave gear (47) which are rotationally connected to the swing vertical plate (41) respectively, the intermediate gear (46) is located between the main gear (45) and the slave gear (47) and is meshed with the main gear (45) and the slave gear (47) respectively, and the longitudinal cutting cutter (44) is coaxially arranged with the slave gear (47) and can rotate under the driving of the slave gear (47).

3. The carton slitting mechanism of claim 2, wherein, The rack (1) is further provided with a horizontally-extended driving shaft (13) penetrating through the mounting base (3), the swing vertical plate (41) and the main gear (45), the outer end of the driving shaft (13) is connected with a first rotary driving element (14), and the driving shaft (13) can drive the main gear (45) to rotate under the action of the first rotary driving element (14).

4. The carton slitting mechanism of claim 3, wherein, The driving shaft (13) is a polygonal shaft, two adjacent rotation shaft sleeves (15) are arranged on the outer periphery of the driving shaft (13), the mounting base (3) is provided with a downwardly-extending mounting vertical plate (31), one of the rotation shaft sleeves (15) penetrates through the mounting vertical plate (31) and rotationally matches with the mounting vertical plate (31), and the other rotation shaft sleeve (15) penetrates through the swing vertical plate (41) and rotationally matches with the swing vertical plate (41).

5. The carton slitting mechanism of claim 4, wherein, The output end of the telescopic driving element (43) extends downward, a horizontally-extended driving rotating shaft (48) is rotationally connected to the swing vertical plate (41), and the output end of the telescopic driving element (43) is rotationally connected to the driving rotating shaft (48) through a joint bearing (49).

6. The carton slitting mechanism of claim 2 wherein, The swing vertical plate (41) is provided with a pressing plate (16) capable of pressing on the top surface of the paperboard, which extends along the moving direction of the paperboard.

7. A carton slitting mechanism according to any one of claims 1 to 6 wherein, The supporting beams (12) are provided with two, which are respectively located on the feeding side and discharging side of the slitting cutter head (44), and the supporting beam (12) on the feeding side of the slitting device (4) is provided with a cutting plate comb (17) extending to the lower side of the slitting cutter head (44), which has a number of avoidance gaps passing through up and down to avoid the slitting cutter head (44).

8. The carton slitting mechanism of any one of claims 1-6, wherein, The transverse moving device (2) comprises a transverse rack (21), a transverse gear (22) and a second rotary driving member (23), the transverse rack (21) is connected to the upper cross beam (11), the transverse gear (22) is rotatably connected to the mounting base (3) and engaged with the transverse rack (21), and the second rotary driving member (23) is connected to the mounting base (3) and used to drive the transverse gear (22) to rotate so as to move the mounting base (3) horizontally along the upper cross beam (11).

9. The carton slitting mechanism of any one of claims 1-6, wherein, The upper cross beam (11) is further provided with a sliding guide rail (18), and the mounting base (3) is provided with a guide sliding block (32) slidingly matched with the sliding guide rail (18); the sliding guide rails (18) are provided with two in the up-down direction, and the guide sliding blocks (32) are also provided with two and slidingly matched with the two sliding guide rails (18) one by one.

10. A carton forming machine characterised in that, The carton forming machine comprises the carton slitting mechanism according to any one of claims 1-9.

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