Precise die cutting mechanism of printing slotting die cutting machine

Abstract

The invention relates to an accurate die-cutting mechanism of a printing slotting die-cutting machine, which comprises a rubber mat roller for mounting a rubber mat, a template roller for mounting a die-cutting tool and two side wall plates, two ends of the rubber mat roller are respectively and rotationally connected with the two side wall plates, and two ends of the template roller are respectively and rotationally connected with the two side wall plates. The rotating direction of the rubber mat roller is opposite to the rotating direction of the template roller, the rubber mat roller is located above the template roller, a gap for a carton board to pass through is formed between the rubber mat roller and the template roller, and the rotating speed adjusting mechanism is used for adjusting the gap between the rubber mat roller and the template roller. Meanwhile, a rotating speed adjusting mechanism is arranged, the rotating speed of the rubber mat roller is adjusted through the rotating speed adjusting mechanism, the linear speed of the rubber mat roller is made to be the same as that of the template roller, and therefore the die cutting precision of the carton board is guaranteed, it is guaranteed that the size of the carton board after die cutting is accurate, and follow-up folding forming is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of carton die-cutting equipment, and in particular to a precise die-cutting mechanism of a printing slotting die-cutting machine. Background Art

[0002] The slotting die-cutting machine is a device used for creasing, slotting and die-cutting corrugated carton sheets. Usually, after the carton sheets are printed, they are conveyed to the slotting die-cutting machine, where the carton sheets are slotted and die-cut by the rubber pad roller located above and the template roller located below, so as to facilitate the subsequent folding and forming of the carton. However, in the use of the existing slotting die-cutting machine, the rubber pad roller is repeatedly pressed and cut by the blade on the template roller, resulting in damage to the surface of the rubber pad roller, resulting in uneven surface of the rubber pad roller, which affects the die-cutting accuracy of the carton sheets. Therefore, people set a grinding device for repairing the rubber pad roller on the rubber pad roller, and use the grinding device to grind the surface of the rubber pad roller to remove the damage. Except for the damaged layer, however, the diameter of the rubber pad roller becomes smaller after grinding. When the diameter of the rubber pad roller becomes smaller, while its rotation speed remains unchanged, the linear speed of the rubber pad roller will inevitably decrease, while the linear speed of the template roller remains unchanged, resulting in different linear speeds of the rubber pad roller and the template roller, affecting the die-cutting accuracy and die-cutting effect of the carton board. Moreover, after the diameter of the rubber pad roller becomes smaller, the gap between the rubber pad roller and the template roller increases. The increase in the gap will inevitably affect the die pressure applied by the rubber pad roller and the template roller on the carton board, resulting in the carton board being unable to pass through the gap between the rubber pad roller and the template roller at an appropriate speed, which will also affect the die-cutting accuracy and die-cutting effect of the carton board, resulting in the carton board after die-cutting being difficult to fold and form. Summary of the invention

[0003] In view of this, in order to overcome the shortcomings of the prior art problems, the present invention provides a precise die-cutting mechanism of a printing slotting die-cutting machine, which is provided with a gap adjustment mechanism, and the gap between the rubber pad roller and the template roller is adjusted by the gap adjustment mechanism, so that the pressure applied by the rubber pad roller and the molding roller on the carton board is appropriate. At the same time, a speed adjustment mechanism is provided, and the speed adjustment mechanism is used to adjust the speed of the rubber pad roller so that the linear speed of the rubber pad roller is the same as the linear speed of the template roller, thereby ensuring the die-cutting accuracy of the carton board, ensuring the accurate size of the carton board after die-cutting, and facilitating subsequent folding and forming.

[0004] To achieve the above purpose, the technical solution provided by the present invention is: A precise die-cutting mechanism of a printing slotting die-cutting machine comprises a rubber pad roller for mounting a rubber pad, a template roller for mounting a die-cutting tool and two side wall panels, wherein the two ends of the rubber pad roller are respectively connected to the two side wall panels for relative rotation, and the two ends of the template roller are respectively connected to the two side wall panels for relative rotation. A transmission mechanism is arranged on the outer side of the wall panel on one side, and the transmission mechanism drives the rubber pad roller and the template roller to rotate, and the rotation direction of the rubber pad roller is opposite to the rotation direction of the template roller. The rubber pad roller is located above the template roller, and there is a gap between the rubber pad roller and the template roller for the carton board to pass through. Among them: it also includes a gap adjustment mechanism for adjusting the gap between the rubber pad roller and the template roller and a speed adjustment mechanism for adjusting the speed of the rubber pad roller. The gap adjustment mechanism has: The gap adjustment shaft is connected to the wall panels on both sides for relative rotation, and the gap adjustment shaft is connected to a gap adjustment driving device, the gap adjustment driving device provides power for the rotation of the gap adjustment shaft, and the gap adjustment driving device is arranged on the outer side of the wall panel on the other side. Two sets of gap adjustment components, the two sets of gap adjustment components are respectively connected to the roller shafts at both ends of the rubber pad roller, the gap adjustment components have a driving gear arranged on the gap adjustment shaft, a connecting sleeve relatively fixedly connected to the wall panel, and a driven gear rotating under the drive of the driving gear, the hub of the driven gear is inserted into the inner hole of the connecting sleeve, and the driven gear is provided with an eccentric hole arranged eccentrically, the roller shafts at both ends of the rubber pad roller are respectively installed in the eccentric holes of the driven gears of the two sets of gap adjustment components, and are connected to the eccentric holes through bearing components, The rubber pad roller gear is connected to the transmission mechanism to drive the rubber pad roller to rotate. A support member, the support member is connected to the outer side of the wall panel provided with the transmission mechanism, and is used to support the rubber pad roller gear, and the rubber pad roller gear can rotate relative to the support member. The adapter is fastened to the rubber pad roller gear, and the adapter is provided with a coupling with adjustable installation position, and the coupling is relatively fixedly connected to the roller shaft of the rubber pad roller. When adjusting the gap between the rubber pad roller and the template roller, the installation position of the coupling on the adapter is adjusted to match the gap, thereby maintaining the connection between the rubber pad roller gear and the transmission mechanism. The speed adjustment mechanism is connected with the rubber pad roller gear, and the speed adjustment mechanism adjusts the speed of the rubber pad roller gear.

[0005] Furthermore, the speed adjustment mechanism comprises: The speed regulating shaft is connected to the wall panel for relative rotation, and is connected to the servo motor. The servo motor provides power for the rotation of the speed regulating shaft when adjusting the speed of the rubber pad roller. A harmonic reducer, the harmonic reducer comprises an input housing, an output housing, a wave generator, a flexible wheel input rigid wheel and an output rigid wheel, the wave generator is connected to a speed regulating shaft and rotates with the speed regulating shaft, the wave generator is arranged in the flexible wheel, the outer gear ring on the flexible wheel is meshed with the inner gear rings of the input rigid wheel and the output rigid wheel at the same time, the input rigid wheel is tightly connected to the input housing, and the output rigid wheel is tightly connected to the output housing, The input gear is fixedly connected to the input housing and connected to the transmission mechanism. An output gear is fixedly connected to the output housing relatively, and is meshed with the rubber pad roller gear.

[0006] Furthermore, it also includes a feed conveying device, which is arranged on the feed side of the template roller and the rubber pad roller, and includes feed rollers and feed pressure rollers arranged in parallel up and down, and a gap is provided between the feed rollers and the feed pressure rollers for conveying carton boards, and the two ends of the feed rollers are respectively connected to the wall panels on both sides for relative rotation, and the two ends of the feed pressure rollers are respectively connected to the wall panels on both sides for relative rotation, and the feed rollers and feed pressure rollers are both connected to the transmission mechanism, and the transmission mechanism drives the feed rollers and the feed pressure rollers to rotate synchronously, and the rotation direction of the feed rollers is opposite to that of the feed pressure rollers.

[0007] Furthermore, a plurality of conveying rollers are arranged on the feed roller along its length direction, and the installation position of the conveying rollers in the length direction of the feed roller is adjustable.

[0008] Further, the transmission mechanism includes an intermediate transmission gear, which is connected to the transmission system of the printing slotting and die-cutting machine, the intermediate transmission gear is connected to the wall panel for relative rotation, the intermediate transmission gear is meshed with the feed roller gear, the feed roller gear is connected to the end of the feed roller, the feed roller gear is meshed with the first intermediate gear and the feed pressure roller gear, the feed pressure roller gear is connected to the end of the feed pressure roller, the first intermediate gear is connected to the wall panel for relative rotation, the first intermediate gear is meshed with the template roller gear, the template roller gear is connected to the roller shaft of the template roller, the feed pressure roller gear is meshed with the second intermediate gear, the second intermediate gear is connected to the wall panel for relative rotation, the second intermediate gear is meshed with the bridge gear, and the bridge gear is meshed with the input gear.

[0009] Furthermore, it also includes a waste discharging device, which is arranged below the template roller. The waste discharging device includes a discharging power device, a discharging active roller, a discharging driven roller and a discharging conveyor belt. Both ends of the discharging active roller are respectively connected to the wall panel for relative rotation, and both ends of the discharging driven roller are respectively connected to the wall panel for relative rotation. One end of the discharging active roller is connected to the discharging power device, and the discharging power device drives the rotation of the discharging active roller. The discharging active roller and the discharging driven roller are connected through the discharging conveyor belt.

[0010] Furthermore, it also includes a grinding device, which is arranged on the discharge side of the template roller and the rubber pad roller, and the damage on the surface of the rubber pad roller is removed by the grinding device. The grinding device has: A grinding screw, wherein the grinding screw is arranged in parallel with the rubber pad roller, and both ends of the grinding screw are connected to the wall panels on both sides for relative rotation, and one end of the grinding screw is connected to the grinding drive device, and the grinding drive device drives the rotation of the grinding screw. The grinding tool holder is threadedly connected to the grinding screw. The grinding screw rotates to drive the grinding tool holder to move along the grinding screw. The grinding tool is connected to the grinding tool holder and moves with the grinding tool holder. The grinding tool can be away from or close to the rubber pad roller, and the rubber pad roller is ground by the moving grinding tool.

[0011] Furthermore, the grinding tool holder is provided with a slide groove arranged along its height direction, and a slider slidingly matched with the slide groove is provided in the slide groove, the grinding tool is tightly connected to the slider, and the grinding tool holder is provided with a through hole connected to the slide groove, the grinding adjustment screw passes through the through hole and is threadedly connected with the slider in the slide groove, and the grinding adjustment screw is connected to the grinding tool holder for relative rotation, and the end of the grinding adjustment screw located outside the grinding tool holder is connected to the adjustment handle, and the adjustment handle is operated to rotate the grinding adjustment screw to move the slider along the slide groove, thereby driving the grinding tool to approach or move away from the rubber pad roller.

[0012] Furthermore, the grinding tool is a grinding wheel or a cutting tool.

[0013] Furthermore, the roller shaft end face of one end of the rubber pad roller connected to the transmission mechanism is fastened with a spline sleeve coaxially arranged with the rubber pad roller, a spline shaft is connected inside the spline sleeve, the spline shaft is connected to the spline bearing seat via a bearing, the spline bearing seat is fastened with the driven gear, and the spline shaft is relatively fixedly connected to the coupling.

[0014] The beneficial effects of the present invention are: 1. The present invention is provided with a gap adjustment mechanism, through which the gap between the rubber pad roller and the template roller is adjusted, so that the pressure applied by the rubber pad roller and the molding roller on the carton board is appropriate. At the same time, a speed adjustment mechanism is provided, through which the speed adjustment mechanism is used to adjust the speed of the rubber pad roller, so that the linear speed of the rubber pad roller is the same as the linear speed of the template roller, thereby ensuring the die-cutting accuracy of the carton board and the accurate size of the carton board after die-cutting, which is convenient for subsequent folding and forming.

[0015] 2. An eccentric hole is provided on the driven gear of the gap adjustment mechanism of the present invention, and the roller shaft of the rubber pad roller is connected to the eccentric hole through a bearing assembly, and the hub of the driven gear is inserted in the connecting sleeve. Since the outer circle of the hub of the driven gear is a sine circle, and the inner hole of the connecting sleeve is a sine circle hole, the driven gear rotates in a true circle under the drive of the driving gear. Due to the existence of the eccentric hole, when the driven gear rotates in a true circle, the roller shaft of the rubber pad roller is displaced through the eccentric hole, so that the rubber pad roller moves away from or close to the template roller, thereby adjusting the gap between the rubber pad roller and the template roller. After the diameter of the rubber pad roller becomes smaller, the gap adjustment mechanism is used to move the rubber pad roller downward close to the template roller to keep the gap stable and avoid inaccurate die cutting caused by excessive gap.

[0016] 3. The roller shaft at one end of the rubber pad roller of the present invention connected to the transmission mechanism is connected to the spline shaft via a spline sleeve. The rubber pad roller gear drives the spline shaft to rotate to achieve the driving of the rubber pad roller. The connection between the spline sleeve and the spline shaft will not affect the axial adjustment of the rubber pad roller while transmitting the rotation.

[0017] 4. The speed adjustment mechanism of the present invention drives the harmonic reducer through a servo motor to rotate the rubber pad roller gear, and adjusts the output speed of the harmonic reducer by controlling the servo motor to adjust the speed of the rubber roller shaft. When the rubber roller shaft becomes smaller in diameter and causes a difference between the linear speed of the rubber pad roller and the linear speed of the template roller, the servo motor adjusts the linear speed of the rubber pad roller through the harmonic reducer to keep the linear speed of the rubber pad roller consistent with that of the template roller, thereby improving the die-cutting accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the gap adjustment mechanism of the present invention; Figure 3 It is a schematic diagram of the gap adjustment principle of the gap adjustment mechanism of the present invention; Figure 4 It is a schematic cross-sectional view of the speed regulating mechanism of the present invention; Figure 5 It is a schematic structural diagram of the grinding device of the present invention; Figure 6 It is a schematic structural diagram of the grinding frame of the present invention; Figure 7 It is a structural schematic diagram of the transmission mechanism of the present invention.

[0019] Reference numerals: Wall panel 1, rubber pad roller 2, template roller 3, transmission mechanism 4, feed roller 5, feed pressure roller 6, conveying pressure wheel 7, grinding device 8, grinding screw 81, grinding tool holder 82, slide 83, slide block 84, grinding adjustment screw 85, adjustment handle 86, grinding tool 87, gap adjustment shaft 9, gap adjustment drive device 10, driving gear 11, driven gear 12, connecting sleeve 13, eccentric hole 14, rubber pad roller gear 15, support 16, adapter 17, coupling 18, spline sleeve 19, spline shaft 20, spline shaft Bearing 21, speed adjustment shaft 22, servo motor 23, harmonic reducer 24, input housing 25, output housing 26, wave generator 27, flexible wheel 28, input rigid wheel 29, output rigid wheel 30, input gear 31, output gear 32, intermediate transmission gear 33, feed roller gear 34, first intermediate gear 35, feed pressure roller gear 36, second intermediate gear 37, discharge power device 38, discharge active roller 39, discharge driven roller 40, discharge conveyor belt 41, bridge gear 42, template roller gear 43. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings: like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a precise die-cutting mechanism of a printing slotting die-cutting machine includes: a rubber pad roller 2 for installing a rubber pad, a template roller 3 for installing a die-cutting tool, and two side wall panels 1, the two ends of the rubber pad roller 2 are respectively connected to the two side wall panels 1 for relative rotation, the two ends of the template roller 3 are respectively connected to the two side wall panels 1 for relative rotation, a transmission mechanism 4 is arranged on the outer side of the wall panel 1 on one side, the transmission mechanism 4 drives the rubber pad roller 2 and the template roller 3 to rotate, and the rotation direction of the rubber pad roller 2 is opposite to that of the template roller 3, the rubber pad roller 2 is located above the template roller 3, and there is a gap between the rubber pad roller 2 and the template roller 3 for the carton board to pass through, and also includes a mechanism for adjusting the rubber pad roller 2. A gap adjustment mechanism for the gap between the pad roller 2 and the template roller 3, the gap adjustment mechanism includes a gap adjustment shaft 9, the gap adjustment shaft 9 is connected to the wall panels 1 on both sides for relative rotation, and the gap adjustment shaft 9 is connected to a gap adjustment drive device 10, the gap adjustment drive device 10 provides power for the rotation of the gap adjustment shaft 9, the gap adjustment drive device 10 is arranged on the outer side of the wall panel 1 on the other side, the roller shafts at both ends of the rubber pad roller 2 are respectively connected to a set of gap adjustment components, the gap adjustment component has a driving gear 11 arranged on the gap adjustment shaft 9, a connecting sleeve 13 relatively fixedly connected to the wall panel 1, and a driven gear 12 rotating under the drive of the driving gear 11 The hub of the driven gear 12 is inserted into the inner hole of the connecting sleeve 13, and an eccentric hole 14 arranged eccentrically is provided in the driven gear 12. The roller shafts at both ends of the rubber pad roller 2 are respectively installed in the eccentric holes 14 of the driven gear 12 of the two sets of gap adjustment components, and are connected to the eccentric holes 14 through bearing assemblies. The outer side of the wall panel 1 provided with the transmission mechanism 4 is connected with a support member 16, and the support member 16 is used to support the rubber pad roller gear 15. The rubber pad roller gear 15 can rotate relative to the support member 16. The rubber pad roller gear 15 is connected to the transmission mechanism 4, which drives the rubber pad roller 2 to rotate, and the rubber pad roller gear 15 is fastened An adapter 17 is connected, and the adapter 17 is connected to the coupling 18 through connecting bolts, and the hole on the adapter 17 for inserting the connecting bolts is a long hole or a U-shaped hole. By adjusting the position of the connecting bolts in the hole, the installation position of the coupling 18 and the adapter 17 can be adjusted. The coupling 18 is relatively fixedly connected to the spline shaft 20, and the spline shaft 20 is connected to the spline sleeve 19 through a spline. The spline sleeve 19 is tightly connected to the roller shaft end face of the rubber pad roller 2 and is coaxially arranged with the rubber pad roller 2. The spline shaft 20 is connected to the spline bearing seat 21 through a bearing, and the spline bearing seat 21 is tightly connected to the driven gear 12. In this embodiment, the gap adjustment driving device 10 is a motor and a reducer, the reducer is connected to the gap adjustment shaft 9, the driving gear 11 rotates with the gap adjustment shaft 9, and a transition gear that can rotate relative to the wall panel 1 is arranged on the outer side of the wall panels 1 on both sides. The driving gear 11 is meshed with the transition gear, and the transition gear is meshed with the driven gear 12.

[0021] When it is necessary to adjust the gap between the rubber pad roller 2 and the template roller 3, start the motor, loosen the connecting bolts of the coupling 18 and the adapter 17, and drive the gap adjustment shaft 9 to rotate through the reducer, so that the two driving gears 11 rotate, and the driving gear 11 drives the driven gear 12 to rotate through the transition gear. Since the hub of the driven gear 12 is a spurious circle and the inner hole of the connecting sleeve 13 is a spurious circle hole, the driven gear 12 rotates in a perfect circle. Due to the existence of the eccentric hole 14 of the driven gear 12, the driven gear 12 rotating in a perfect circle will cause the roller shaft of the rubber pad roller 2 installed in the eccentric hole 14 to produce an up and down displacement, thereby causing the rubber pad roller 2 to produce an up and down displacement, so that the rubber pad roller 2 is close to or away from the template roller 3, so as to adjust the gap between the rubber pad roller 2 and the template roller 3. After the adjustment, lock the connecting bolts of the coupling 18 and the adapter 17.

[0022] The spline sleeve 19 and the spline shaft 20 on one side of the roller shaft of the rubber pad roller 2 are arranged so that when the axial position of the rubber pad roller 2 is adjusted, the spline sleeve 19 moves with the rubber pad roller 2, while the position of the spline shaft 20 remains unchanged, and the connection between the spline shaft 20 and the coupling 18 is maintained, and the axial position of the rubber pad roller 2 is adjusted while maintaining the rotational connection relationship unchanged. The adjustment mechanism required for axial position adjustment can be a dial mechanism connected to the roller shaft end face on the other side of the rubber pad roller 2. The roller shaft on the other side of the rubber pad roller 2 is provided with a hole coaxially arranged with the roller shaft, the dial shaft is inserted into the hole and connected to the roller shaft through a bearing, and a dial that can move along the dial shaft is mounted on the dial shaft, and the dial is connected to the roller shaft end face of the rubber pad roller 2. The dial is driven by power to move along the dial shaft, and the rubber pad roller 2 can be pulled to produce axial displacement, thereby adjusting the axial position of the rubber pad roller 2.

[0023] like Figure 4As shown, it also includes a speed adjustment mechanism for adjusting the rotation of the rubber pad roller 2, the speed adjustment mechanism is connected to the rubber pad roller gear 15, the speed adjustment mechanism adjusts the speed of the rubber pad roller gear 15, the speed adjustment mechanism includes: a speed adjustment shaft 22, a harmonic reducer 24, an input gear 31 and an output gear 32, the speed adjustment shaft 22 is connected to the wall panel 1 for relative rotation, and the speed adjustment shaft 22 is connected to the servo motor 23 through a belt transmission device, the servo motor 23 provides power for the rotation of the speed adjustment shaft 22 when adjusting the speed of the rubber pad roller 2, the harmonic reducer 24 has an input shell 25, an output shell 26, a wave generator 2 7. Flexspline 28, input rigid wheel 29 and output rigid wheel 30. The wave generator 27 is connected to the speed regulating shaft 22 and rotates with the speed regulating shaft 22. The wave generator 27 is arranged in the flexspline 28. The outer gear ring on the flexspline 28 is meshed with the inner gear rings of the input rigid wheel 29 and the output rigid wheel 30 at the same time. The input rigid wheel 29 is tightly connected to the input housing 25, and the output rigid wheel 30 is tightly connected to the output housing 26. The input housing 25 is relatively fixedly connected to the input gear 31, the input gear 31 is connected to the transmission mechanism 4, the output housing 26 is fixedly connected to the relative output gear 32, and the output gear 32 is meshed with the rubber pad roller gear 15.

[0024] When the rubber pad roller 2 and the template roller 3 rotate normally, and the linear speed of the rubber pad roller 2 is the same as the linear speed of the template roller 3, the power source of the rubber pad roller 2 is the transmission mechanism 4 driving the input gear 31 to rotate, the input gear 31 transmits the rotation to the input rigid wheel 29, the input rigid wheel 29 transmits the rotation to the output rigid wheel 30 through the flexible wheel 28, the output rigid wheel 30 drives the output gear 32 to rotate, and the output gear 32 drives the rubber pad roller gear 15 to rotate, so that the rubber pad roller 2 rotates. When the rubber pad roller 2 has a difference in linear speed from the template roller 3 due to the reduction in diameter, the servo motor 23 is started, the servo motor 23 drives the speed adjustment shaft 22 to rotate through the belt transmission device, the wave generator 27 of the harmonic reducer 24 rotates, drives the output rigid wheel 30 to rotate through the flexible wheel 28, and the output gear 32 drives the rubber pad roller gear 15 to rotate, so that the rubber pad roller 2 rotates, and the speed of the rubber pad roller 2 is controlled by the encoder of the servo motor 23, so that the linear speed of the rubber pad roller 2 is consistent with the linear speed of the template roller 3.

[0025] In this embodiment, when the gap between the rubber pad roller 2 and the template roller 3 increases due to the decrease in diameter of the rubber pad roller 2, and the linear speed of the rubber pad roller 2 is lower than the linear speed of the template roller 3, the gap between the rubber pad roller 2 and the template roller 3 is reduced by the gap adjustment mechanism, and at the same time, the rotation speed of the rubber pad roller 2 is adjusted to make the linear speed of the rubber pad roller 2 and the template roller 3 consistent, thereby ensuring the die-cutting accuracy of the carton board.

[0026] like Figure 5 , Figure 6As shown, the discharge side of the template roller 3 and the rubber pad roller 2 of the present invention is provided with a grinding device 8, and the damage on the surface of the rubber pad roller 2 is removed by the grinding device 8. The grinding device 8 includes a grinding screw 81 arranged in parallel with the rubber pad roller 2, and the two ends of the grinding screw 81 are connected to the wall panels 1 on both sides for relative rotation. One end of the grinding screw 81 is connected to a grinding drive device, and the grinding drive device drives the rotation of the grinding screw 81. A grinding tool holder 82 is threadedly connected to the grinding screw 81. The rotation of the grinding screw 81 drives the grinding tool holder 82 to move along the grinding screw 81. The grinding tool holder 82 is provided with a slide groove 83 arranged along its height direction, and a slider 84 is provided in the slide groove 83 to slide with the slide groove 83. The grinding tool 87 is tightly connected to the slider 84. The grinding tool holder 82 has a through hole connected to the slide groove 83. The grinding adjustment screw 85 passes through the through hole and is threadedly connected to the slider 84 in the slide groove 83, and the grinding adjustment screw 85 is relatively rotatably connected to the grinding tool holder 82. The end of the grinding adjustment screw 85 located outside the grinding tool holder 82 is connected to the adjustment handle 86. The adjustment handle 86 is operated to rotate the grinding adjustment screw 85, so that the slider 84 moves along the slide groove 83, thereby driving the grinding tool 87 to approach or move away from the rubber pad roller 2. The grinding tool 87 is a grinding wheel or a cutting tool. The grinding tool 87 moves with the grinding tool holder 82, and the rubber pad roller 2 is ground by the moving grinding tool 87.

[0027] When the surface of the rubber pad roller 2 is damaged and needs to be repaired, the adjustment handle 86 is first operated to rotate the repair adjustment screw 85, so that the slider 84 moves along the slide groove 83 on the repair tool holder 82, and the slider 84 drives the repair tool 87 to press against the rubber pad roller 2, and the repair driving device is started. The repair driving device drives the repair screw 81 to rotate, so that the repair tool holder 82 moves along the repair screw 81, and the repair tool holder 82 drives the repair tool 87 to grind the rubber pad roller 2.

[0028] like Figure 1 As shown, the feed side of the template roller 3 and the rubber pad roller 2 of the present invention is also provided with a feed conveying device, the feed conveying device includes a feed roller 5 and a feed roller 6 arranged in parallel up and down, there is a gap between the feed roller 5 and the feed roller 6 for conveying carton boards, the two ends of the feed roller 5 are respectively connected to the wall panels 1 on both sides for relative rotation, the two ends of the feed roller 6 are respectively connected to the wall panels 1 on both sides for relative rotation, the feed roller 5 and the feed roller 6 are both connected to the transmission mechanism 4, the transmission mechanism 4 drives the feed roller 5 and the feed roller 6 to rotate synchronously, and the rotation direction of the feed roller 5 is opposite to that of the feed roller 6. A plurality of conveying rollers 7 are arranged on the feed roller 6 along its length direction, and the installation position of the conveying roller 7 in the length direction of the feed roller 6 is adjustable.

[0029] like Figure 1As shown, a waste discharge device is arranged below the template roller 3 of the present invention, and the waste discharge device comprises a discharge power device 38, a discharge active roller 39, a discharge driven roller 40 and a discharge conveyor belt 41, both ends of the discharge active roller 39 are respectively connected to the wall panel 1 for relative rotation, both ends of the discharge driven roller 40 are respectively connected to the wall panel 1 for relative rotation, one end of the discharge active roller 39 is connected to the discharge power device 38, the discharge power device 38 drives the rotation of the discharge active roller 39, and the discharge active roller 39 and the discharge driven roller 40 are connected through the discharge conveyor belt 41.

[0030] The scraps of carton board produced when die-cutting by the template roller 3 and the rubber pad roller 2 fall onto the discharge conveyor belt 41, and the discharge power device 38 is started to rotate the discharge active roller 39, thereby moving the discharge conveyor belt 41 to discharge the scraps.

[0031] like Figure 7 As shown, the transmission mechanism 4 includes an intermediate transmission gear 33, which is connected to the transmission system of the printing slotting die-cutting machine. The intermediate transmission gear 33 is connected to the wall panel 1 for relative rotation. The intermediate transmission gear 33 is meshed with a feed roller gear 34, which is connected to the end of the feed roller 5. The feed roller gear 34 is meshed with a first intermediate gear 35 and a feed pressure roller gear 36, which is connected to the end of the feed pressure roller 6. The first intermediate gear 35 is connected to the wall panel 1 for relative rotation. The first intermediate gear 35 is meshed with a template roller gear 43, which is connected to the roller shaft of the template roller 3. The feed pressure roller gear 36 is meshed with a second intermediate gear 37, which is connected to the wall panel 1 for relative rotation. The second intermediate gear 37 is meshed with a bridge gear 42, which is meshed with the input gear 31.

[0032] The transmission system of the printing slotting die-cutting machine drives the intermediate transmission gear 33 to rotate, and the intermediate transmission gear 33 drives the feed roller gear 34 to rotate, so that the feed roller 5 rotates, and the feed roller gear 34 drives the first intermediate gear 35 and the feed pressure roller gear 36 to rotate, so that the feed pressure roller 6 rotates, and the feed pressure roller 6 rotates in the opposite direction to the feed roller 5, so as to realize the transportation of the cardboard box. The first intermediate gear 35 drives the template roller gear 43 to rotate, so that the template roller 3 rotates, the feed pressure roller gear 36 drives the second intermediate wheel to rotate, the second intermediate wheel drives the input gear 31 to rotate, and the input gear 31 drives the input rigid wheel 29 of the harmonic reducer 24 to rotate, and after the harmonic reducer 24 decelerates, the rubber pad roller gear 15 rotates, so that the rubber pad roller 2 rotates, and the rotation direction of the rubber pad roller 2 is opposite to that of the template roller 3, so that the rubber pad roller 2 and the template roller 3 die-cut the carton board and convey it at the same time.

[0033] It should be noted that the above embodiments are illustrative of the technical solution of the present invention rather than limiting. Equivalent substitutions made by ordinary technicians in the relevant technical field or other modifications made according to the prior art should be included in the scope of rights required by the present invention as long as they do not exceed the concept and scope of the technical solution of the present invention.

Claims

1. A precision die-cutting mechanism of a printing slotting die-cutting machine, comprising a rubber pad roller (2) for mounting a rubber pad, a template roller (3) for mounting a die-cutting tool, and two side wall panels (1), wherein two ends of the rubber pad roller (2) are respectively connected to the two side wall panels (1) for relative rotation, and two ends of the template roller (3) are respectively connected to the two side wall panels (1) for relative rotation, and a transmission mechanism (4) is arranged on the outer side of one side wall panel (1), and the transmission mechanism (4) drives the rubber pad roller (2) and the template roller (3) to rotate, and the rotation direction of the rubber pad roller (2) is opposite to that of the template roller (3), and the rubber pad roller (2) is located above the template roller (3), and there is a gap between the rubber pad roller (2) and the template roller (3) for a carton board to pass through. Features: It also includes a gap adjustment mechanism for adjusting the gap between the rubber pad roller (2) and the template roller (3) and a speed adjustment mechanism for adjusting the speed of the rubber pad roller (2). The gap adjustment mechanism has: A gap adjustment shaft (9), wherein the gap adjustment shaft (9) is connected to the wall panels (1) on both sides for relative rotation, and the gap adjustment shaft (9) is connected to a gap adjustment driving device (10), the gap adjustment driving device (10) provides power for the rotation of the gap adjustment shaft (9), and the gap adjustment driving device (10) is arranged on the outer side of the wall panel (1) on the other side. Two sets of gap adjustment components, the two sets of gap adjustment components are respectively connected to the roller shafts at both ends of the rubber pad roller (2), the gap adjustment components have a driving gear (11) arranged on the gap adjustment shaft (9), a connecting sleeve (13) relatively fixedly connected to the wall panel (1), and a driven gear (12) rotating under the drive of the driving gear (11), the hub of the driven gear (12) is inserted into the inner hole of the connecting sleeve (13), the driven gear (12) is provided with an eccentric hole (14) arranged eccentrically, the roller shafts at both ends of the rubber pad roller (2) are respectively inserted into the eccentric holes (14) of the driven gears (12) of the two sets of gap adjustment components, and are connected to the eccentric holes (14) through bearing components, The rubber pad roller gear (15) is connected to the transmission mechanism (4) to drive the rubber pad roller (2) to rotate. A support member (16), the support member (16) being connected to the outer side of a wall panel (1) provided with a transmission mechanism (4), and being used to support a rubber pad roller gear (15), the rubber pad roller gear (15) being able to rotate relative to the support member (16). An adapter (17), wherein the adapter (17) is fixedly connected to the rubber pad roller gear (15), and a coupling (18) with an adjustable installation position is provided on the adapter (17), and the coupling (18) is relatively fixedly connected to the roller shaft of the rubber pad roller (2). When adjusting the gap between the rubber pad roller (2) and the template roller (3), the installation position of the coupling (18) on the adapter (17) is adjusted to match the gap adjustment, thereby maintaining the connection between the rubber pad roller gear (15) and the transmission mechanism (4). The rotation speed adjustment mechanism is connected to the rubber pad roller gear (15), and the rotation speed adjustment mechanism adjusts the rotation speed of the rubber pad roller gear (15).

2. The precise die-cutting mechanism of the printing slotting die-cutting machine according to claim 1, characterized in that: The roller shaft end face of one end of the rubber pad roller (2) connected to the transmission mechanism (4) is tightly connected to a spline sleeve (19) coaxially arranged with the rubber pad roller (2); a spline shaft (20) is connected inside the spline sleeve (19); the spline shaft (20) is connected to a spline bearing seat (21) via a bearing; the spline bearing seat (21) is tightly connected to the driven gear (12); and the spline shaft (20) is relatively fixedly connected to the coupling (18).

3. The precise die-cutting mechanism of the printing slotting die-cutting machine according to claim 1, characterized in that: The speed adjustment mechanism comprises: A speed regulating shaft (22), wherein the speed regulating shaft (22) is connected to the wall panel (1) for relative rotation, and the speed regulating shaft (22) is connected to a servo motor (23), and the servo motor (23) provides power for the rotation of the speed regulating shaft (22) when adjusting the speed of the rubber pad roller (2). A harmonic reducer (24), the harmonic reducer (24) comprising an input housing (25), an output housing (26), a wave generator (27), a flexible wheel (28), an input rigid wheel (29) and an output rigid wheel (30), the wave generator (27) being connected to a speed regulating shaft (22) and rotating along with the speed regulating shaft (22), the wave generator (27) being arranged in the flexible wheel (28), the outer gear ring on the flexible wheel (28) being meshed with the inner gear rings of the input rigid wheel (29) and the output rigid wheel (30) at the same time, the input rigid wheel (29) being tightly connected to the input housing (25), the output rigid wheel (30) being tightly connected to the output housing (26), An input gear (31), wherein the input gear (31) is relatively fixedly connected to the input housing (25), and the input gear (31) is connected to the transmission mechanism (4). An output gear (32), wherein the output gear (32) is fixedly connected to the output housing (26) relative to each other, and the output gear (32) is meshed with the rubber pad roller gear (15).

4. The precise die-cutting mechanism of the printing slotting die-cutting machine according to claim 1, characterized in that: The invention also comprises a feed conveying device, which is arranged on the feed side of the template roller (3) and the rubber pad roller (2), and comprises a feed roller (5) and a feed pressure roller (6) which are arranged in parallel up and down, and a gap is provided between the feed roller (5) and the feed pressure roller (6) for conveying carton boards, and the two ends of the feed roller (5) are respectively connected to the wall panels (1) on both sides for relative rotation, and the two ends of the feed pressure roller (6) are respectively connected to the wall panels (1) on both sides for relative rotation, and the feed roller (5) and the feed pressure roller (6) are both connected to the transmission mechanism (4), and the transmission mechanism (4) drives the feed roller (5) and the feed pressure roller (6) to rotate synchronously, and the rotation direction of the feed roller (5) is opposite to the rotation direction of the feed pressure roller (6).

5. The precise die-cutting mechanism of the printing slotting die-cutting machine according to claim 4, characterized in that: A plurality of conveying rollers (7) are arranged on the feed roller (6) along its length direction, and the installation position of the conveying rollers (7) in the length direction of the feed roller (6) is adjustable.

6. The precise die-cutting mechanism of the printing slotting die-cutting machine according to any one of claims 1 to 5, characterized in that: The transmission mechanism (4) comprises an intermediate transmission gear (33), the intermediate transmission gear (33) is connected to the transmission system of the printing slotting die-cutting machine, the intermediate transmission gear (33) is connected to the wall panel (1) for relative rotation, the intermediate transmission gear (33) is meshed with a feed roller gear (34), the feed roller gear (34) is connected to the end of the feed roller (5), the feed roller gear (34) is meshed with a first intermediate gear (35) and a feed pressure roller gear (36), and the feed pressure roller gear (36) is connected At the end of the feed roller (6), the first intermediate gear (35) is connected to the wall panel (1) for relative rotation, the first intermediate gear (35) is meshed with the template roller gear (43), the template roller gear (43) is connected to the roller shaft of the template roller (3), the feed roller gear (36) is meshed with the second intermediate gear (37), the second intermediate gear (37) is connected to the wall panel (1) for relative rotation, the second intermediate gear (37) is meshed with the bridge gear (42), and the bridge gear (42) is meshed with the input gear (31).

7. The precise die-cutting mechanism of the printing slotting die-cutting machine according to claim 1, characterized in that: The invention also comprises a waste material discharging device, which is arranged below the template roller (3). The waste material discharging device comprises a material discharging power device (38), a material discharging active roller (39), a material discharging driven roller (40) and a material discharging conveyor belt (41). The two ends of the material discharging active roller (39) are respectively connected to the wall panel (1) for relative rotation. The two ends of the material discharging driven roller (40) are respectively connected to the wall panel (1) for relative rotation. One end of the material discharging active roller (39) is connected to the material discharging power device (38). The material discharging power device (38) drives the material discharging active roller (39) to rotate. The material discharging active roller (39) and the material discharging driven roller (40) are connected via the material discharging conveyor belt (41).

8. The precise die-cutting mechanism of the printing slotting die-cutting machine according to claim 1, characterized in that: It also includes a grinding device (8), which is arranged on the discharge side of the template roller (3) and the rubber pad roller (2), and is used to remove damage on the surface of the rubber pad roller (2). The grinding device (8) includes: A grinding screw (81), wherein the grinding screw (81) is arranged in parallel with the rubber pad roller (2), and both ends of the grinding screw (81) are connected to the wall panels (1) on both sides for relative rotation, and one end of the grinding screw (81) is connected to a grinding drive device, and the grinding drive device drives the rotation of the grinding screw (81). The grinding tool holder (82) is threadedly connected to the grinding screw (81), and the grinding screw (81) rotates to drive the grinding tool holder (82) to move along the grinding screw (81). A grinding tool (87), wherein the grinding tool (87) is connected to the grinding tool holder (82) and moves with the grinding tool holder (82). The grinding tool (87) can move away from or close to the rubber pad roller (2), and the rubber pad roller (2) is ground by the moving grinding tool (87).

9. The precise die-cutting mechanism of the printing slotting die-cutting machine according to claim 8, characterized in that: The grinding tool holder (82) is provided with a slide groove (83) arranged along its height direction, and a slider (84) is provided in the slide groove (83) and is slidably matched with the slide groove (83). The grinding tool (87) is tightly connected to the slider (84). The grinding tool holder (82) is provided with a through hole connected to the slide groove (83). The grinding adjustment screw (85) passes through the through hole and is threadedly connected to the slider (84) in the slide groove (83), and the grinding adjustment screw (85) is connected to the grinding tool holder (82) for relative rotation. One end of the grinding adjustment screw (85) located outside the grinding tool holder (82) is connected to an adjustment handle (86). The adjustment handle (86) is operated to rotate the grinding adjustment screw (85) so that the slider (84) moves along the slide groove (83), thereby driving the grinding tool (87) to approach or move away from the rubber pad roller (2).

10. The precise die-cutting mechanism of the printing slotting die-cutting machine according to claim 8, characterized in that: The grinding tool (87) is a grinding wheel or a cutting tool.

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