Direct printing paper feeding type carton grooving and line pressing all-in-one machine

Abstract

The invention discloses a direct printing paper feeding type carton grooving and line pressing all-in-one machine which comprises a mounting frame, and a grooving structure, a trimming structure, a first line pressing structure and a second line pressing structure are sequentially arranged in the mounting frame in the paper feeding direction. The slotting structure comprises a first upper cutter shaft, a second upper cutter shaft, a first lower cutter shaft and a second lower cutter shaft which are rotatably arranged on the mounting frame at intervals front and back, a plurality of first cutter holders are arranged on the first lower cutter shaft, a plurality of first cutter dies are arranged on the first cutter holders at intervals, one of the plurality of first cutter holders is provided with a bevel cutter, and the other of the plurality of first cutter dies is provided with a second cutter die; a plurality of first cutter holders are arranged on the first lower cutter shaft, a plurality of second cutter holders are arranged on the second lower cutter shaft, a plurality of second cutter dies are arranged on the second cutter holders at intervals, and when the slotting structure works, the first cutter holders and the second cutter holders synchronously move, so that the corresponding first cutter dies and second cutter dies can synchronously cut off. The direct printing paper feeding type carton grooving and line pressing all-in-one machine is convenient to machine paperboards and small in size.

Description

Technical Field

[0001] This invention relates to the field of cardboard box processing technology, and in particular to a direct-printing, paper-feeding, slotting, and creasing integrated machine for cardboard boxes. Background Technology

[0002] With the gradual advancement of technology, the technology of digital printing machines is developing more and more rapidly. The emergence of digital printing machines has improved the printing quality of cartons and enabled the printing of richer patterns, which has been widely used in the high-end printing and packaging industry.

[0003] Currently, traditional corrugated cardboard box processing equipment generally adopts a transverse feeding method to achieve functions such as creasing, slotting, trimming, and separating paper in the length and width directions of the cardboard box. However, this transverse feeding method faces significant challenges when combined with digital inkjet printing technology: due to the high cost of printheads in digital inkjet printers, dozens of printheads are required to achieve the corresponding printing width, resulting in expensive equipment investment and significantly increasing the overall operating costs of cardboard box factories because printheads are consumable materials. In addition, existing slotting and die-cutting equipment also relies on transverse feeding to perform slotting and die-cutting on the cardboard, resulting in a large floor space, dispersed processes, and complex debugging of the entire production line. Especially when integrated with digital printing presses, it is often necessary to reverse the direction of the cardboard after printing—whether using a reversing mechanism or manually, this further increases production costs and operating space requirements. Summary of the Invention

[0004] The purpose of this invention is to overcome the problems of the prior art and provide a direct-printing, paper-feeding, slotting, and creasing integrated machine for cardboard that is convenient for processing and has a small size.

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

[0006] A direct-printing paper-feeding carton slotting and creasing integrated machine includes: a mounting frame, wherein a slotting structure, an edge trimming structure, a first creasing structure and a second creasing structure are sequentially arranged along the paper feeding direction inside the mounting frame;

[0007] The grooving structure includes a first upper cutter shaft and a second upper cutter shaft rotatably mounted on a mounting frame at intervals. The mounting frame is also rotatably connected to a first lower cutter shaft and a second lower cutter shaft. The first lower cutter shaft and the first upper cutter shaft are arranged side-by-side vertically with a gap between them. The second lower cutter shaft and the second upper cutter shaft are also arranged side-by-side vertically with a gap between them. The first lower cutter shaft is provided with a plurality of first cutter holders. The first cutter holders are provided with a plurality of first die-cutting molds at intervals. One of the plurality of first cutter holders is provided with a beveled cutter. The beveled cutter is located on the side of the first die-cutting mold of the first cutter holder and is inclined relative to the first die-cutting mold. The second lower cutter shaft is provided with a plurality of second cutter holders. The second cutter holders are provided with a plurality of second die-cutting molds at intervals. When the grooving structure is working, the plurality of first cutter holders and second cutter holders move synchronously so that the corresponding first die-cutting molds and second die-cutting molds can be cut synchronously.

[0008] The trimming structure includes a first slide rail disposed on both sides of the mounting frame, a first slider disposed on the first slide rail and capable of sliding relative to it, a first connecting plate disposed on the first slider, a first cross brace and a second cross brace disposed laterally between the two first connecting plates, a plurality of top plates disposed on the side of the first cross brace facing the first pressing structure, and a cutting assembly disposed on the second cross brace capable of cooperating with the top plate to trim the cardboard.

[0009] The cutter assembly includes a second slide rail disposed on a second crossbar, a second slider disposed on the second slide rail and capable of sliding along it, a cutter body disposed on the second slider and capable of rotating relative to it, and a first drive assembly capable of driving the second slider to slide is also disposed between the second crossbar and the second slider.

[0010] The first drive assembly includes a connecting frame disposed on a first connecting plate, a first roller disposed on the connecting frame, a second connecting plate disposed on the second cross brace, a first drive motor disposed on the second connecting plate, a first rotating wheel disposed on the output shaft of the first drive motor, a first transmission belt disposed between the first rotating wheel and the first roller, and a first auxiliary wheel disposed on the second connecting plate that can contact the first transmission belt and keep the first transmission belt in a taut state.

[0011] The slotted structure further includes multiple third slide rails disposed on the front and rear crossbeams of the mounting frame. Each third slide rail is provided with multiple sliding third sliders. A first support plate is disposed between the front and rear third sliders near the mounting frame. A second support plate is disposed between the front and rear third sliders located in the middle of the third slide rail. A support frame is connected to the second support plate. A belt conveyor assembly is disposed on the support frame. A gap is formed between the belt conveyor assembly and the first upper cutter shaft and the second upper cutter shaft. The first upper cutter shaft and the first lower cutter shaft pass through the first support plate and the support frame. The first lower cutter shaft and the second lower cutter shaft pass through the support frame and the first support plate.

[0012] The first tool holder includes a first base body sleeved outside the first lower tool shaft, a plurality of first mounting holes are provided along the outer periphery of the first base body, a plurality of first connecting blocks that can fit against its outer periphery are provided on the first base body, the first die is disposed on the first connecting blocks, and one of the first connecting blocks is provided with a beveled cutter that is inclined relative to the first connecting block, and the first connecting block is provided with a second mounting hole that can be adapted to the first mounting holes.

[0013] The mounting bracket is equipped with a second drive assembly capable of driving the slotted structure. The second drive assembly includes a first rotating gear and a second rotating gear located at both ends of the first upper cutter shaft. A third gear and a fourth gear are located at both ends of the second upper cutter shaft. The mounting bracket also includes a first rotating shaft and a second rotating shaft. A fifth gear and a sixth gear are located at both ends of the first rotating shaft. A seventh gear and an eighth gear are located on the second rotating shaft. The first and third rotating gears mesh with the fifth and seventh gears, respectively. The second and fourth rotating gears mesh with the sixth and eighth gears, respectively. The mounting bracket also includes a third drive motor. A second rotating wheel is located on the output shaft of the third drive motor. The third rotating wheel is located at the end of the first upper cutter shaft adjacent to the second rotating wheel. The third rotating wheel is located outside the first rotating gear. A fourth rotating wheel is provided at the end of the second upper cutter shaft adjacent to the second rotating wheel. A second transmission belt is provided between the fourth, third, and second rotating wheels. A second auxiliary wheel is provided on the mounting frame between the fourth and third rotating wheels to keep the second transmission belt taut. A fourth and fifth drive motors are provided on the side wall of the mounting frame away from the third drive motor. Transmission gears capable of meshing with the sixth and eighth gears are provided on the output shafts of the fourth and fifth drive motors, respectively. Multiple synchronous motors are also provided on the mounting frame. A fifth rotating wheel is provided on both the first and second lower cutter shafts. A synchronous belt is provided between each fifth rotating wheel and a synchronous motor.

[0014] The first and second cutting dies are arranged in a U-shape and are arranged along the length of the first and second cutting dies. The first and second cutting dies are provided with elastic ejector members that can eject waste material on the inner side of the cutting edges of the first and second cutting dies. The second upper cutting shaft and the second lower cutting shaft are fitted with flexible pressure roller sleeves.

[0015] The first pressing structure includes a first upper pressing roller rotatably connected to the mounting frame. The first upper pressing roller is provided with a plurality of upper pressing wheels, which are spaced apart from each other. Each upper pressing wheel is provided with a protruding pressing part. The first pressing structure also includes a first lower pressing roller rotatably connected to the mounting frame. The first lower pressing roller is provided with a plurality of lower pressing wheels, and each lower pressing wheel is provided with a pressing groove that can cooperate with the pressing part.

[0016] The second pressing structure includes a second upper pressing roller rotatably connected to the mounting frame. The second upper pressing roller is provided with a plurality of first thread-contacting rubber sleeves arranged along the length direction of the second upper pressing roller. The first thread-contacting rubber sleeves are provided with thread-contacting grooves. The second pressing structure also includes a second lower pressing roller rotatably connected to the mounting frame and parallel to the upper pressing roller. The second lower pressing roller is provided with a plurality of second thread-contacting rubber sleeves arranged along the length direction of the second lower pressing roller. The second thread-contacting rubber sleeves are provided with thread-contacting pressure knives that protrude outward and can cooperate with the thread-contacting grooves.

[0017] Compared with existing technologies, the present invention has the following advantages: In use, the cardboard passes vertically through a slotting structure, an edge-trimming structure, a first crease structure, and a second crease structure in sequence. During the slotting process, the first upper cutter shaft and the first lower cutter shaft, as well as the second upper cutter shaft and the second lower cutter shaft, move synchronously, respectively driving the first and second cutter holders to move accordingly. The first upper cutter shaft and the first lower cutter shaft are located on the inner side, so the cardboard's flap is located between the first upper cutter shaft and the first lower cutter shaft, and the cardboard body is located between the second upper cutter shaft and the second lower cutter shaft. At this time, the first die and the oblique cutter work together to cut a notch at the flap, and the second die cuts a notch at the body. The cardboard continues to advance. During the process, the first die on the first lower cutting shaft makes a cut on the board body, and the second die on the second lower cutting shaft makes a cut on the side of the board body near the tail. A piece of cardboard is cut a total of four times. Then, the first creasing structure rolls the vertical box height line in the longitudinal direction of the cardboard. Next, the second creasing structure rolls the transverse direction of the cardboard to make the transverse fold line. When the rear end of the board body is clamped and creasing by the first and second creasing structures, the trimming structure precisely trims the excess edge paper at the tail of the board body. Due to the synchronous movement of the first upper cutting shaft and the first lower cutting shaft, and the second upper cutting shaft and the second lower cutting shaft, the overall volume is minimized when vertical paper feeding is used, reducing equipment costs and improving production efficiency. Attached Figure Description

[0018] Figure 1 This is one of the structural schematic diagrams of the direct-printing paper-feeding carton slotting and creasing integrated machine of the present invention;

[0019] Figure 2 This is a top view of the direct-printing paper-feeding carton slotting and creasing integrated machine of the present invention;

[0020] Figure 3 This is the second structural schematic diagram of the direct-printing paper-feeding carton slotting and creasing integrated machine of the present invention;

[0021] Figure 4 This is one of the structural schematic diagrams of the slotting structure of the direct-printing paper-feeding carton slotting and creasing integrated machine of the present invention;

[0022] Figure 5 This is the second schematic diagram of the slotting structure of the direct-printing paper-feeding carton slotting and creasing integrated machine of the present invention;

[0023] Figure 6 This is the third structural schematic diagram of the slotting structure of the direct-printing paper-feeding carton slotting and creasing integrated machine of the present invention;

[0024] Figure 7 This is a schematic diagram of the structure of the first connecting block of the direct-printing paper-feeding carton slotting and creasing integrated machine of the present invention;

[0025] Figure 8 This is one of the structural schematic diagrams of the first and second creasing structures of the direct-printing paper-feeding carton slotting and creasing integrated machine of the present invention;

[0026] Figure 9 This is the second schematic diagram of the first and second creasing structures of the direct-printing paper-feeding carton slotting and creasing integrated machine of the present invention.

[0027] Figure 10 This is the third schematic diagram of the first and second creasing structures of the direct-printing paper-feeding carton slotting and creasing integrated machine of the present invention.

[0028] Figure 11 This is the fourth schematic diagram of the first and second creasing structures of the direct-printing paper-feeding carton slotting and creasing integrated machine of the present invention.

[0029] Figure 12 This is the fifth schematic diagram of the first and second creasing structures of the direct-printing paper-feeding carton slotting and creasing integrated machine of the present invention;

[0030] Figure 13 This is a cross-sectional view of the first and second creasing structures of the direct-printing paper-feeding carton slotting and creasing integrated machine of the present invention;

[0031] Figure 14 This is a schematic diagram of the first creasing structure of the direct-printing paper-feeding carton slotting and creasing integrated machine of the present invention;

[0032] Figure 15 for Figure 14 Enlarged view of the circled area;

[0033] Figure 16 This is a structural diagram of a cardboard box. Detailed Implementation

[0034] The present invention will be further described in detail below with reference to embodiments:

[0035] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0036] like Figures 1 to 15 A direct-printing, paper-feeding, slotting, and creasing integrated carton machine is shown, comprising: a mounting frame 1, wherein a slotting structure 2, a trimming structure 3, a first creasing structure 4, and a second creasing structure 5 are sequentially arranged along the paper feeding direction within the mounting frame 1; the slotting structure 2 includes a first upper blade shaft 21 and a second upper blade shaft 22 rotatably mounted on the mounting frame 1 at a time interval; the mounting frame 1 is also rotatably connected to a first lower blade shaft 23 and a second lower blade shaft 24; the first lower blade shaft 23 and the first upper blade shaft 21 are arranged side-by-side vertically with a gap between them, and the second lower blade shaft 24 and the second upper blade shaft 22 are arranged side-by-side vertically with a gap between them; the first lower blade shaft... The 23 is provided with a plurality of first cutter holders 25, and a plurality of first cutter molds 251 are provided on the first cutter holders 25 at intervals. One of the plurality of first cutter holders 25 is provided with a beveled cutter 252. The beveled cutter 252 is provided on the side of the first cutter mold 251 of the first cutter holder 25 and is inclined relative to the first cutter mold 251. The second lower cutter shaft 24 is provided with a plurality of second cutter holders 26, and a plurality of second cutter molds 261 are provided on the second cutter holders 26 at intervals. When the grooving structure 2 is working, the plurality of first cutter holders 25 and second cutter holders 26 move synchronously so that the corresponding first cutter molds 251 and second cutter molds 261 can be cut synchronously.

[0037] In use, the cardboard passes vertically through the slotting structure 2, trimming structure 3, first crease structure 4, and second crease structure 5. During the slotting process, the first upper cutter shaft 21 and the first lower cutter shaft 23, and the second upper cutter shaft 22 and the second lower cutter shaft 24 move synchronously, respectively driving the first cutter holder 25 and the second cutter holder 26 to move accordingly. The first upper cutter shaft 21 and the first lower cutter shaft 23 are located on the inner side, so the cardboard flap is located between the first upper cutter shaft 21 and the first lower cutter shaft 23, and the cardboard body is located between the second upper cutter shaft 22 and the second lower cutter shaft 24. At this time, the first die 251 and the oblique cutter 252 cooperate to cut the flap, and the second die 261 cuts the body. The cardboard continues to move forward. Another first die 251 on the first lower die shaft 23 makes a cut on the board body, and another second die 261 on the second lower die shaft 24 makes a cut on the side of the board body near the tail. A piece of cardboard is cut a total of four times. Then, the first creasing structure 4 rolls a vertical box height line in the longitudinal direction of the cardboard. Next, the second creasing structure 5 rolls a transverse fold line in the transverse direction of the cardboard. When the rear end of the board body is clamped and creasing by the first creasing structure 4 and the second creasing structure 5, the trimming structure 3 precisely trims the excess edge paper at the tail of the board body. Due to the synchronous movement of the first upper die shaft 21 and the first lower die shaft 23, and the second upper die shaft 22 and the second lower die shaft 24, the overall volume is minimized when vertical paper feeding is used, reducing equipment costs and improving production efficiency.

[0038] In one embodiment, the cardboard 8 includes a front flap 81 and a rear body 82, requiring four cutting operations. Specifically, this includes cutting off the bevel 83 of the flap 81, and cutting off the first cut 84, the second cut 85, and the third cut 86 on the body 82. When the cardboard 8 enters the mounting frame 1, the flap 81 is located between the first upper cutter shaft 21 and the first lower cutter shaft 23, the front end of the body 82 is located between the second upper cutter shaft 22 and the second lower cutter shaft 24, and the remaining part of the body 82 is inside the mounting frame 1. At this time, the first upper cutter shaft 21 and the first lower cutter shaft 23 work together to drive the first die 251 on the first cutter holder 25 to cooperate with the oblique cutter 252 to complete the removal of the oblique surface 83 of the folded tongue 81; at the same time, the second upper cutter shaft 22 and the second lower cutter shaft 24 cooperate to complete the removal of the first cut 84 of the board body 82 through the die on the second cutter holder 26; then the cardboard 8 continues to move forward, the folded tongue 81 gradually moves towards the second pressing structure 5, and at the same time, the part of the board body 82 that was originally outside the mounting frame 1 enters the frame. Next, the first upper cutter shaft 21 and the first lower cutter shaft 23 cooperate again to cut off the second cut 85 on the board body 82 using the first die 251 on another first cutter holder 25; at the same time, the second upper cutter shaft 22 and the second lower cutter shaft 24 also cooperate again to complete the cutting off of the third cut 86 on the board body 82 using the second die 261 on another second cutter holder 26; since the cutting and creasing are performed simultaneously, the first creasing structure 4 presses out the vertical box height line 87, and the second creasing structure 5 rolls out the horizontal fold line 88 on the cardboard 8. When the tail of the board body 82 moves to the trimming knot When the trimming structure 3 is in place, it precisely trims the excess edge paper 89 at the tail of the board body, thereby completing the processing of the entire cardboard. Since the vertical paper feeding is adopted, the first upper knife shaft 21 and the first lower knife shaft 23, and the second upper knife shaft 22 and the second lower knife shaft 24 are set to cut simultaneously, making the cut parts more compact. At the same time, since the overall process adopts the operation of cutting and pressing at the same time, the overall volume can be minimized. The trimming structure 3 is integrated between the first lower knife shaft 23 and the first pressing structure 4, further making full use of space and achieving high compactness of the overall structure.

[0039] The trimming structure 3 includes first slide rails 31 disposed on both sides of the mounting frame 1. First slide rails 31 are equipped with first sliders 32 that can slide relative to them. First sliders 32 are equipped with first connecting plates 33. A first cross brace 34 and a second cross brace 35 are laterally disposed between the two first connecting plates 33. Multiple top plates 36 are disposed on the side of the first cross brace 34 facing the first pressure structure 4. A cutter assembly 37, which cooperates with the top plates 36 to trim the paperboard, is disposed on the second cross brace 35. The trimming structure 3 achieves rapid lateral positioning through the first slide rails 31 and the first sliders 32. When the first connecting plates 33 move, they can drive the first cross brace 34 and the second cross brace 35 between the two first connecting plates 33 to move synchronously, adjusting according to the distance to be cut off at the end of the paperboard. The cutter assembly 37 acts opposite to the top plates 36, cutting off excess paper edges in one go, resulting in a straight cut without tearing. This avoids dimensional errors and rough edge defects caused by traditional manual cutting, reduces subsequent folding errors, and improves the finished product qualification rate.

[0040] The cutter assembly 37 includes a second slide rail 371 mounted on a second crossbar 35. A second slider 372, capable of sliding along the second slide rail 371, is mounted on the second slider 372, which has a cutter body 373 capable of rotating relative to it. A first drive assembly 374, capable of driving the second slider 372 to slide, is also provided between the second crossbar 35 and the second slider 372. The cutter assembly 37 achieves precise positioning of the cutter body 373 along the axial direction of the second crossbar 35 through the second slide rail 371 and the second slider 372. Driven by the first drive assembly 374, the cutter body 373 moves along the second crossbar 35. The top plate 36 and the cutter body 373 are staggered to allow the cardboard to be cut. The cutter body 373 is mounted on the second slider 372 with screws, facilitating quick switching of the blade angle or replacement of the cutter, shortening blade change time, and making it more convenient to use.

[0041] The first drive assembly 374 includes a connecting frame 3741 disposed on the first connecting plate 33, a first roller 3742 disposed on the connecting frame 3741, a second connecting plate 3743 disposed on the second cross brace 35, a first drive motor 3744 disposed on the second connecting plate 3743, a first rotating wheel 3745 disposed on the output shaft of the first drive motor 3744, a first transmission belt 3746 disposed between the first rotating wheel 3745 and the first roller 3742, and a first auxiliary wheel 3747 disposed on the second connecting plate 3743, which can contact the first transmission belt 3746 and keep the first transmission belt 3746 in a taut state.

[0042] When the first drive motor 3744 starts, it drives the first rotating wheel 3745 to rotate. The rotation of the first rotating wheel 3745 drives the first transmission belt 3746 to move, which in turn drives the two first rollers 3742 to move accordingly. The closed-loop synchronous belt drive formed by the first rollers 3742, the first rotating wheel 3745, the first transmission belt 3746, and the first auxiliary wheel 3747 smoothly and accurately converts the rotational motion output by the first drive motor 3744 into the linear displacement of the second slider 372. The second slider 372 then drives the cutter body 373 to move along the second cross brace 35. The first auxiliary wheel 3747 keeps the first transmission belt 3746 taut in real time, eliminating backlash and slippage.

[0043] The slotted structure 2 further includes multiple third slide rails 27 disposed on the front and rear crossbeams 11 of the mounting frame 1. Each third slide rail 27 is provided with multiple sliding third sliders 28. A first support plate 29 is disposed between the front and rear third sliders 28 near the mounting frame 1. A second support plate 2a is disposed between the front and rear third sliders 28 located in the middle of the third slide rail 27. A support frame 2b is connected to the second support plate 2a. A belt conveyor assembly 2c is disposed on the support frame 2a. A gap is formed between the belt conveyor assembly 2c and the first upper cutter shaft 21 and the second upper cutter shaft 22. The first upper cutter shaft 21 and the first lower cutter shaft 23 pass through the first support plate 29 and the support frame 2b. The first lower cutter shaft 23 and the second lower cutter shaft 24 pass through the support frame 2b and the first support plate 29. Through the cooperation of the third slide rail 27 and the third slider 28, the first support plate 29, the second support plate 2a, and the support frame 2b can slide left and right along the front and rear crossbeams 11 as a whole, realizing rapid position adjustment of the slotted structure 2 relative to the mounting frame 1; the belt conveyor assembly 2c is set on the support frame 2a and forms a stable paper passage gap with the first upper knife shaft 21 and the second upper knife shaft 22 to ensure continuous and smooth paperboard conveying; the first upper knife shaft 21, the first lower knife shaft 23, and the second lower knife shaft 24 are inserted between the first support plate 29 and the support frame 2b to form multi-point support, reduce vibration during operation, and ensure slotting accuracy. The belt conveyor assembly 2c forms a constant paper passage gap with the first upper knife shaft 21 and the second upper knife shaft 22 to ensure that both thick and thin paperboards can pass smoothly and avoid paper jams or slippage.

[0044] The first tool holder 25 includes a first base body 253 sleeved outside the first lower tool shaft 23. A plurality of first mounting holes 2531 are provided along the outer periphery of the first base body 253. A plurality of first connecting blocks 254 that can fit against the outer periphery are provided on the first base body 253. The first die 251 is disposed on the first connecting block 254. One of the first connecting blocks 254 is provided with a beveled cutter 252 that is inclined relative to the first connecting block 254. The first connecting block 254 is provided with a second mounting hole 2541 that can be adapted to the first mounting hole 2531.

[0045] The first base 253 is sleeved outside the first lower cutter shaft 23 to facilitate rotation with the first lower cutter shaft 23. Multiple first mounting holes 2531 are evenly distributed on the outer periphery of the first base 253. The first connecting block 254 fits and is positioned against the outer periphery of the first base 253, and is quickly locked to the first mounting hole 2531 through the second mounting hole 254, so as to realize the adjustment and positioning of the axial position of the first connecting block 254 and the first base 253, thereby adjusting the position of the first die 251 and the beveled cutter 252 relative to the first base 253. The beveled cutter 252 on one of the first connecting blocks 254 is set in the same body as the first die 251, which can complete the synchronous processing of straight groove and beveled cut at one time, forming in one step, making the processing more convenient. At the same time, the first connecting block 254 and the first base 253 are locked by connecting pins or screws to prevent slippage during rolling cutting. The second cutter holder 26 has the same structure as the first cutter holder 25. The difference between the second cutter holder 26 and the first cutter holder 25 is that the second cutter holder 26 does not have a beveled cutter 252.

[0046] The mounting frame 1 is equipped with a second drive assembly 6 capable of driving the slotted structure 2. The second drive assembly 6 includes a first rotating gear 61 and a second rotating gear 62 disposed at both ends of the first upper cutter shaft 21. A third gear 63 and a fourth gear 64 are disposed at both ends of the second upper cutter shaft 22. The mounting frame 1 is also equipped with a first rotating shaft 65 and a second rotating shaft 66. A fifth gear 67 and a sixth gear 68 are disposed at both ends of the first rotating shaft 65. A seventh gear 69 and an eighth gear 6a are disposed on the second rotating shaft 66. The first rotating gear 61 and the third gear 63 mesh with the fifth gear 67 and the seventh gear 69, respectively. The second rotating gear 62 and the fourth gear 64 mesh with the sixth gear 68 and the eighth gear 6a, respectively. The mounting frame 1 is also equipped with a third drive motor 6b. A second rotating wheel 6c is disposed on the output shaft of the third drive motor 6b. The third rotating wheel 6c is disposed at the end of the first upper cutter shaft 21 adjacent to the second rotating wheel 6c. d. The third rotating wheel 6d is located outside the first rotating gear 61. A fourth rotating wheel 6e is provided at the end of the second upper cutter shaft 22 adjacent to the second rotating wheel 6c. A second transmission belt 6f is provided between the fourth rotating wheel 6e, the third rotating wheel 6d, and the second rotating wheel 6c. A second auxiliary wheel 6g is provided on the mounting frame 1 between the fourth rotating wheel 6e and the third rotating wheel 6d, which can keep the second transmission belt 6f in a taut state. A fourth drive motor 6h and a fifth drive motor 6i are provided on the side wall of the mounting frame 1 away from the third drive motor 6b. Transmission gears 6j that can mesh with the sixth gear 68 and the eighth gear 6a are provided on the output shafts of the fourth drive motor 6h and the fifth drive motor 6i, respectively. Multiple synchronous motors 6k are also provided on the mounting frame 1. A fifth rotating wheel 6m is provided on both the first lower cutter shaft 23 and the second lower cutter shaft 24. A synchronous belt 6n is provided between each fifth rotating wheel 6m and the synchronous motor 6k.

[0047] The second drive assembly 6 enables the first upper tool shaft 21 and the second upper tool shaft 22 to achieve high-precision synchronous rotation through the synchronous meshing of the first rotating gear 61, the second rotating gear 62, the third gear 63, the fourth gear 64 with the fifth gear 67, the sixth gear 68, the seventh gear 69 and the eighth gear 6a.

[0048] After the third drive motor 6b starts, the second rotating wheel 6c synchronously drives the third rotating wheel 6d and the fourth rotating wheel 6e through the second transmission belt 6f, thereby driving the first upper tool shaft 21 and the second upper tool shaft 22 to rotate at the same speed and in the same direction. When the first upper tool shaft 21 and the second upper tool shaft 22 rotate, the first rotating gear 61 and the second rotating gear 62 at both ends of the first upper tool shaft 21 mesh with the fifth gear 67 and the sixth gear 68 on the first rotating shaft 65, respectively. The third gear 63 and the fourth gear 64 at both ends of the second upper tool shaft 22 mesh synchronously with the seventh gear 69 and the eighth gear 6a on the second rotating shaft 66, respectively, forming two sets of synchronous gear chains to ensure that the two upper tool shafts are in phase. The second auxiliary wheel 6g keeps the second transmission belt 6f constantly tensioned to eliminate slippage and ensure transmission accuracy. The fourth drive motor 6h and the fifth drive motor 6i, mounted on the opposite side wall, drive the sixth gear 68 and the eighth gear 6a respectively through their respective transmission gears 6j. This allows for independent compensation and speed adjustment of the first upper cutter shaft 21 and the second upper cutter shaft 22, facilitating fine-tuning of the phase of the first and second upper cutter shafts 21 and 22 to maintain synchronization. The synchronous motor 6k drives the fifth rotating wheel 6m on the first lower cutter shaft 23 and the second lower cutter shaft 24 through the synchronous belt 6n, ensuring strict synchronization of the first lower cutter shaft 23, the second lower cutter shaft 24, the first upper cutter shaft 21, and the second upper cutter shaft 22. This multi-group power source zone control ensures neat and misaligned grooving cuts, improving the overall line stability and production efficiency.

[0049] The first die 251 and the second die 261 are arranged in a U-shape and are positioned along the length of the first die holder 25 and the second die holder 26. Elastic ejector components capable of ejecting waste material are provided on the first die holder 25 and the second die holder 26, located inside the cutting edges of the first die 251 and the second die 261. Flexible pressure roller sleeves 7 are fitted onto the first upper die shaft 21 and the second upper die shaft 22. The U-shaped first die 251 and the second die 261 are arranged along the length of the first die holder 25 and the second die holder 26, allowing for the formation of the desired groove in a single roll cut. The elastic ejector components are positioned inside the cutting edges, ejecting waste material immediately as the die closes, preventing jamming and clogging, and maintaining a smooth groove edge. The structure is simple and compact, eliminating the need for manual cleaning, improving grooving continuity and production efficiency. The flexible pressure roller sleeve 7 adheres to the cardboard surface, preventing indentations and scratches, while also buffering the impact of the die, improving cut quality and extending die life.

[0050] The first pressing structure 4 includes a first upper pressing roller 41 rotatably connected to the mounting frame 1. The first upper pressing roller 41 is provided with a plurality of upper pressing wheels 42, which are spaced apart from each other. The upper and lower pressing wheels are provided with protruding pressing parts 43. The first pressing structure 4 also includes a first lower pressing roller 44 rotatably connected to the mounting frame 1. The first lower pressing roller 44 is provided with a plurality of lower pressing wheels 45, and the lower pressing wheels 45 are provided with pressing grooves 46 that can cooperate with the pressing parts 43.

[0051] The first upper pressure roller 41 and the first lower pressure roller 44 rotate synchronously. The pressure part 43 of the upper pressure roller 42 and the pressure groove 46 of the lower pressure roller 45 form precise indentations on the vertical cardboard. The indentation depth is uniform and the straightness is high. The upper pressure rollers 42 are adjustable in interval to adapt to different box heights and change orders quickly. The overall structure is compact, which improves the vertical pressure accuracy and production efficiency.

[0052] The second pressing structure 5 includes a second upper pressing roller 51 rotatably connected to the mounting frame 1. The second upper pressing roller 51 is provided with a plurality of first thread-catching rubber sleeves 52 arranged along the length direction of the second upper pressing roller 51. The first thread-catching rubber sleeves 52 are provided with thread-catching grooves 53. The second pressing structure 5 also includes a second lower pressing roller 54 rotatably connected to the mounting frame 1 and parallel to the second upper pressing roller 51. The second lower pressing roller 54 is provided with a plurality of second thread-catching rubber sleeves 55 arranged along the length direction of the second lower pressing roller 54. The second thread-catching rubber sleeves 55 are provided with thread-catching pressure knives 56 that protrude outward and can cooperate with the thread-catching grooves 53.

[0053] The second upper pressure roller 51 and the second lower pressure roller 54 rotate synchronously, and the crease-fitting knife 56 engages with the crease-fitting groove 53 to form a clear crease in the transverse direction of the cardboard; the first crease-fitting sleeve 52 and the second crease-fitting sleeve 55 are respectively provided with the crease-fitting groove 53 and the crease-fitting knife 56, which can be replaced separately after wear, making maintenance convenient.

[0054] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A direct-printing, paper-feeding, slotting, and creasing integrated machine for cartons, characterized in that, include: Mounting frame (1), wherein along the paper feeding direction, a slotted structure (2), a trimming structure (3), a first creasing structure (4) and a second creasing structure (5) are sequentially arranged; The slotted structure (2) includes a first upper cutter shaft (21) and a second upper cutter shaft (22) rotatably mounted on the mounting frame (1) at intervals. The mounting frame (1) is also rotatably connected to a first lower cutter shaft (23) and a second lower cutter shaft (24). The first lower cutter shaft (23) and the first upper cutter shaft (21) are arranged side by side vertically with a gap between them. The second lower cutter shaft (24) and the second upper cutter shaft (22) are arranged side by side vertically with a gap between them. A plurality of first cutter holders (25) are provided on the first lower cutter shaft (23), and a plurality of first die-cutting molds (25) are spaced apart on the first cutter holders (25). 1) One of the plurality of first cutter holders (25) is provided with a beveled cutter (252). The beveled cutter (252) is provided on the side of the first die (251) of the first cutter holder (25) and is inclined relative to the first die (251). A plurality of second cutter holders (26) are provided on the second lower cutter shaft (24). A plurality of second die (26) are provided at intervals on the second cutter holders (26). When the slotting structure (2) is working, the plurality of first cutter holders (25) and second cutter holders (26) move synchronously so that the corresponding first die (251) and second die (261) can be cut synchronously.

2. The direct-printing, paper-feeding, slotting, and creasing integrated machine for cartons according to claim 1, characterized in that, The trimming structure (3) includes a first slide rail (31) disposed on both sides of the mounting frame (1). The first slide rail (31) is provided with a first slider (32) that can slide relative to it. The first slider (32) is provided with a first connecting plate (33). A first cross brace (34) and a second cross brace (35) are arranged horizontally between the two first connecting plates (33). The first cross brace (34) is provided with a plurality of top plates (36) on the side facing the first pressing structure (4). The second cross brace (35) is provided with a cutter assembly (37) that can cooperate with the top plate (36) to trim the cardboard.

3. The direct-printing, paper-feeding, slotting, and creasing integrated machine for cartons according to claim 2, characterized in that, The cutter assembly (37) includes a second slide rail (371) disposed on the second cross brace (35), a second slider (372) disposed on the second slide rail (371) and a cutter body (373) disposed on the second slider (372) and a cutter body (373) rotatable relative to the second slider (372), and a first drive assembly (374) disposed between the second cross brace (35) and the second slider (372) and a first drive assembly (374) capable of driving the second slider (372) to slide.

4. The direct-printing, paper-feeding, slotting, and creasing integrated machine for cartons according to claim 3, characterized in that, The first drive assembly (374) includes a connecting frame (3741) disposed on a first connecting plate (33), a first roller (3742) disposed on the connecting frame (3741), a second connecting plate (3743) disposed on the second cross brace (35), a first drive motor (3744) disposed on the second connecting plate (3743), a first rotating wheel (3745) disposed on the output shaft of the first drive motor (3744), a first transmission belt (3746) disposed between the first rotating wheel (3745) and the first roller (3742), and a first auxiliary wheel (3747) disposed on the second connecting plate (3743) that can contact the first transmission belt (3746) and keep the first transmission belt (3746) in a taut state.

5. The direct-printing, paper-feeding, slotting, and creasing integrated machine for cartons according to claim 1, characterized in that, The slotted structure (2) further includes multiple third slide rails (27) disposed on the front and rear crossbeams (11) of the mounting frame (1). Each of the third slide rails (27) is provided with multiple sliding third sliders (28). A first support plate (29) is disposed between the front and rear third sliders (28) near the mounting frame (1). A second support plate (2a) is disposed between the front and rear third sliders (28) located in the middle of the third slide rail (27). A support frame (2b) is connected to the support plate (2a). A belt conveyor assembly (2c) is provided on the support frame (2a). A gap is formed between the belt conveyor assembly (2c) and the first upper cutter shaft (21) and the second upper cutter shaft (22). The first upper cutter shaft (21) and the first lower cutter shaft (23) pass through the first support plate (29) and the support frame (2b). The first lower cutter shaft (23) and the second lower cutter shaft (24) pass between the support frame (2b) and the first support plate (29).

6. The direct-printing, paper-feeding, slotting, and creasing integrated machine for cartons according to claim 1, characterized in that, The first tool holder (25) includes a first base body (253) sleeved outside the first lower tool shaft (23). A plurality of first mounting holes (2531) are provided along the outer periphery of the first base body (253). A plurality of first connecting blocks (254) that can fit against the outer periphery of the first base body (253) are provided. The first die (251) is disposed on the first connecting block (254). One of the first connecting blocks (254) is provided with a beveled cutter (252) that is inclined relative to the first connecting block (254). The first connecting block (254) is provided with a second mounting hole (2541) that can be adapted to the first mounting hole (2531).

7. The direct-printing, paper-feeding, slotting, and creasing integrated machine for cartons according to claim 1, characterized in that, The mounting bracket (1) is provided with a second driving assembly (6) capable of driving the slotted structure (2) to move. The second driving assembly (6) includes a first rotating gear (61) and a second rotating gear (62) disposed at both ends of the first upper cutter shaft (21). The second upper cutter shaft (22) is provided with a third gear (63) and a fourth gear (64) at both ends. The mounting bracket (1) is also provided with a first rotating shaft (65) and a second rotating shaft (66). The first rotating shaft (65) is provided with a fifth gear (67) and a sixth gear (68) at both ends. The second rotating shaft (66) is provided with... The mounting bracket (1) is equipped with a seventh gear (69) and an eighth gear (6a). The first rotating gear (61) and the third gear (63) mesh with the fifth gear (67) and the seventh gear (69) respectively. The second rotating gear (62) and the fourth gear (64) mesh with the sixth gear (68) and the eighth gear (6a) respectively. The mounting bracket (1) is also equipped with a third drive motor (6b). The output shaft of the third drive motor (6b) is equipped with a second rotating wheel (6c). The end of the first upper cutter shaft (21) adjacent to the second rotating wheel (6c) is equipped with a third rotating wheel. (6d), the third rotating wheel (6d) is located outside the first rotating gear (61), and a fourth rotating wheel (6e) is provided at the end of the second upper cutter shaft (22) adjacent to the second rotating wheel (6c). A second transmission belt (6f) is provided between the fourth rotating wheel (6e), the third rotating wheel (6d) and the second rotating wheel (6c). A second auxiliary wheel (6g) is provided on the mounting frame (1) between the fourth rotating wheel (6e) and the third rotating wheel (6d) to keep the second transmission belt (6f) taut. The mounting frame (1) is located away from the third rotating wheel. A fourth drive motor (6h) and a fifth drive motor (6i) are provided on one side wall of the drive motor (6b). The output shafts of the fourth drive motor (6h) and the fifth drive motor (6i) are provided with transmission gears (6j) that can mesh with the sixth gear (68) and the eighth gear (6a) respectively. The mounting bracket (1) is also provided with a plurality of synchronous motors (6k). The first cutting shaft (23) and the second cutting shaft (24) are each provided with a fifth rotating wheel (6m). A synchronous belt (6n) is provided between each of the fifth rotating wheels (6m) and the synchronous motor (6k).

8. The direct-printing, paper-feeding, slotting, and creasing integrated machine for cartons according to claim 1, characterized in that, The first die (251) and the second die (261) are arranged in a U-shape and are arranged along the length direction of the first cutter holder (25) and the second cutter holder (26). The first cutter holder (25) and the second cutter holder (26) are provided with elastic ejector members that can eject waste material on the inner side of the cutting edge of the first die (251) and the second die (261). Flexible pressure roller sleeves (7) are sleeved on the second upper cutter shaft (22) and the second lower cutter shaft (24).

9. The direct-printing, paper-feeding, slotting, and creasing integrated machine for cartons according to claim 1, characterized in that, The first pressing structure (4) includes a first upper pressing roller (41) rotatably connected to the mounting frame (1). The first upper pressing roller (41) is provided with a plurality of upper pressing wheels (42), which are spaced apart from each other. The upper and lower pressing wheels are provided with protruding pressing parts (43). The first pressing structure (4) also includes a first lower pressing roller (44) rotatably connected to the mounting frame (1). The first lower pressing roller (44) is provided with a plurality of lower pressing wheels (45), and the lower pressing wheels (45) are provided with pressing grooves (46) that can cooperate with the pressing parts (43).

10. The direct-printing, paper-feeding, slotting, and creasing integrated machine for cartons according to claim 1, characterized in that, The second pressing structure (5) includes a second upper pressing roller (51) rotatably connected to the mounting frame (1). The second upper pressing roller (51) is provided with a plurality of first thread-contacting sleeves (52) arranged along the length direction of the second upper pressing roller (51). The first thread-contacting sleeves (52) are provided with thread-contacting grooves (53). The second pressing structure (5) also includes a second lower pressing roller (54) rotatably connected to the mounting frame (1) and parallel to the second upper pressing roller (51) vertically. The second lower pressing roller (54) is provided with a plurality of second thread-contacting sleeves (55) arranged along the length direction of the second lower pressing roller (54). The second thread-contacting sleeves (55) are provided with thread-contacting blades (56) that protrude outward and can cooperate with the thread-contacting grooves (53).

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