Feeding deviation rectifying device of rotary press

Abstract

The invention relates to the technical field of rotary presses, and provides a rotary press feeding deviation rectifying device which comprises a feeding rack and further comprises a swing shaft, a lifting swing arm, a material erecting swing assembly, a discharging shaft, a supporting assembly, a supporting rack, a guide roller and a feeding deviation rectifying assembly. Two lifting swing arms are symmetrically and fixedly installed on the swing shaft, the material erecting swing assembly is installed in the feeding rack, the discharging shaft is arranged at the feeding end of the feeding rack, the supporting assembly is installed in the feeding rack, the supporting rack is fixedly installed in the feeding rack, and guide rollers are rotationally installed on the two sides of the supporting rack correspondingly. By means of the technical scheme, the problems that in the prior art, due to mechanical errors of a printing machine or uneven thickness, hardness or texture of printing materials, a mechanical structure in the printing machine is abraded, and the printing quality is reduced are solved.

Description

Technical Field

[0001] The invention relates to the technical field of rotary printing presses, and in particular to a feeding deviation correcting device for a rotary printing press. Background Art

[0002] A rotary printing press is a widely used printing device that can print various types of images, texts and other contents. It usually consists of one or more rotating cylinders, each of which has a printing plate. When the cylinder rotates around a fixed axis, the printing plate moves with it, leaving an image or text on the surface of the printed matter. The main components of a rotary printing press are the unwinder, printing unit, UV drying unit and winder.

[0003] During printing, the unloading machine first supplies raw materials steadily. At this time, the heavy hammer maintains the tension of the material unloading, and then the paper feeding and pulling rollers convey the materials to the printing seat at a fixed length. During this process, each printing seat prints the required patterns in various colors, and uses a UV dryer to cure and dry the printing ink. The printed products can be conveyed to the next step through the unloading pull and paper roller, and then the printed products can be wound up using the winder.

[0004] When using a rotary printing press to print materials, the printed pattern may not be on the center line due to mechanical errors of the printing press, or uneven thickness, hardness or texture of the printed material. We generally call this "shifting" or "deviation". Deviation will cause asymmetry and inconsistency of the printed pattern, which will reduce the overall quality of the printed product and cause a certain amount of waste to be produced each time printing. This not only wastes materials and reduces work efficiency, but also requires additional costs for reprinting. At the same time, long-term deviation of the printing material will also cause wear, deformation and other adverse effects on the mechanical structure of the printing press, resulting in irregular unevenness on the surface of the printing material, or unclear and blurred printed patterns, greatly reducing the printing quality. Summary of the invention

[0005] The present invention proposes a feeding correction device for a rotary printing press, which solves the problem in the related art that the mechanical error of the printing press, or the uneven thickness, hardness or texture of the printing material, causes the internal mechanical structure of the printing press to be worn, resulting in damage to the printing material and resulting in reduced printing quality.

[0006] The technical solution of the present invention is as follows: A feeding deviation correction device for a rotary printing press comprises a feeding frame and also comprises: A swing shaft, the swing shaft being rotatably mounted on the feeding end of the feeding frame; A lifting and lowering swing arm, two of which are symmetrically and fixedly mounted on the swing shaft; A material rack swing assembly, the material rack swing assembly is installed inside the loading frame and is used to drive the swing shaft to rotate; A discharge shaft, the discharge shaft is arranged at the feeding end of the loading frame, and the discharge shaft is located on the upper part of the swing shaft; A support assembly, the support assembly is installed inside the feeding frame and is used to support the discharge shaft; A supporting frame, the supporting frame is fixedly installed inside the feeding frame; Guide rollers, the guide rollers are rotatably mounted on both sides of the support frame; A material feeding correction component, which is mounted on the support frame and is used to correct the moving material; A discharge assembly, which is installed at the discharge end of the loading rack and is used to drive the material to move out of the loading rack; A control panel is fixedly mounted on the feeding frame.

[0007] On the basis of the above scheme, the rack material swing assembly includes: First cylinders, two first cylinders are symmetrically and rotatably installed inside the feeding frame; A cylinder swing rod, wherein both ends of the swing shaft are fixedly mounted with the cylinder swing rod, and the cylinder swing rod is rotationally connected to the output end of the first cylinder.

[0008] Based on the above solution, the support assembly includes: A fixed frame, two of which are symmetrically and fixedly installed inside the feeding frame; A telescopic sleeve, wherein the two fixing frames are both slidably mounted with the telescopic sleeve; A second cylinder, the second cylinder being fixedly mounted on both sides of the two fixing frames; A slip ring, on which the two telescopic sleeves are rotatably mounted, and the slip ring is fixedly connected to the output end of the second cylinder; A guide portion, the guide portion is mounted on the top of the telescopic sleeve and is used to connect the discharge shaft; A braking part is installed on the feeding frame and is used to control the rotation of the unloading shaft.

[0009] On the basis of the above scheme, the guide part comprises: A conical guide block, the ends of the two telescopic sleeves are fixedly mounted with the conical guide block; Guide grooves, both ends of the discharge shaft are provided with the guide grooves, and the guide grooves are adapted to the conical guide blocks; Positioning blocks, the ends of the two telescopic sleeves are symmetrically and fixedly mounted with two positioning blocks; The two ends of the discharge shaft are symmetrically provided with two plugging grooves, and the plugging grooves are adapted to the positioning blocks.

[0010] On the basis of the above scheme, the braking part includes a brake and further includes: A housing, wherein the housing is fixedly mounted on the feeding frame; Wherein, the brake is installed inside the housing; A follower shaft, the follower shaft being rotatably mounted inside the housing; A slide rod, the slide rod is slidably mounted on the follower shaft, and the slide rod is fixedly connected to one of the telescopic sleeves; A brake pad is detachably mounted on the follower shaft, and the brake pad is adapted to the brake.

[0011] On the basis of the above scheme, the feeding and correcting assembly comprises: A carrier frame, the carrier frame is fixedly mounted on the supporting frame; A deflection-correcting frame, the deflection-correcting frame is slidably mounted on the upper portion of the bearing frame; A deflection correction roller, wherein the deflection correction roller is rotatably mounted on both ends of the deflection correction frame; A paper receiving platform, the paper receiving platform is fixedly mounted on the upper part of the deflection correction frame; A paper press rack, two of which are symmetrically and slidably mounted on the paper receiving platform; Electric cylinders, two of which are symmetrically and fixedly mounted at the bottom of the paper receiving platform, and the output ends of the electric cylinders are fixedly connected to the paper pressing frame; Deviation correction rollers, two deviation correction rollers are rotatably mounted on both ends of the paper receiving platform, and two adjacent deviation correction rollers are symmetrically and tiltedly arranged; Deflection correction electric eyes, which are fixedly installed on both sides of the feeding frame, and are located at the lower part of the deflection correction roller at the discharge end; A paper pressing part, which is mounted on the paper pressing frame and is used to fix the position of the material when receiving the paper; A driving unit is installed inside the supporting frame and is used to drive the deviation correcting frame to move.

[0012] On the basis of the above scheme, the paper pressing part comprises: A paper press, the interiors of the two paper press frames are cleaned and fixed with the paper press, and the two paper presses are symmetrically arranged; A swing frame, wherein the swing frame is rotatably mounted inside the two paper pressing frames, and the bottom of the swing frame abuts against the top of the paper pressing board; A paper pressing roller, the end of the swing frame is rotatably mounted with the paper pressing roller; Positioning grooves, a plurality of said positioning grooves are provided at equal distances on the inner top walls of the two said paper pressing racks; A spring, wherein each of the positioning grooves is fixedly installed with the spring; A positioning seat, the bottom of each spring is fixedly mounted with the positioning seat, and the positioning seat is slidably mounted inside the positioning groove; A pressure plate roller is rotatably mounted on the bottom of each positioning seat, and the pressure plate roller abuts against the swing frame.

[0013] On the basis of the above scheme, the driving unit comprises: A driving screw, the driving screw being rotatably mounted inside the supporting frame; A first motor, wherein the first motor is fixedly mounted inside the feeding frame, and an output end of the first motor is fixedly connected to the driving screw; A driving nut is threadedly mounted on the driving screw rod, and the driving nut is fixedly connected to the deviation correcting frame.

[0014] On the basis of the above scheme, the unloading assembly includes a tensioning device, which is fixedly installed inside the feeding frame, and also includes: A feeding roller, the feeding roller is rotatably mounted on the discharge end of the feeding frame; A material guide roller, the material guide roller is rotatably mounted between the feed roller and the guide roller; A second motor, the second motor is fixedly installed inside the feeding frame; A driven pulley, the driven pulley is fixedly mounted on the end of the feeding roller; A driving pulley, the output end of the second motor is fixedly mounted with the driving pulley; A transmission belt, wherein the transmission belt is tensioned between the driven pulley and the driving pulley, and the tensioning wheel provided in the tensioning device abuts against the transmission belt; A pressing part is installed inside the feeding frame and is used to apply pressure to the feeding roller and the guide roller.

[0015] On the basis of the above scheme, the pressing part comprises: Swing frames, two swing frames are symmetrically and rotatably installed on both sides of the feeding frame; A voltage regulating bracket, wherein the four swing frames are all fixedly mounted with the voltage regulating bracket, and two adjacent voltage regulating brackets are symmetrically arranged; A pressure roller, wherein the pressure roller is rotatably mounted between two opposite pressure roller brackets, the axis position of the pressure roller is parallel to the axis positions of the feed roller and the guide roller, and the two pressure rollers are respectively adapted to the feed roller and the guide roller; A third cylinder, two third cylinders are symmetrically and rotatably installed on both sides of the feeding frame; A connecting frame, on which the output ends of the four third cylinders are rotatably mounted; A pressure regulating nut, on each of the four pressure regulating brackets, the pressure regulating nut is fixedly mounted; A pressure-adjusting screw is threadedly installed inside the four pressure-adjusting nuts, and the pressure-adjusting screw is rotatably connected to the connecting frame.

[0016] The working principle and beneficial effects of the present invention are: 1. In the present invention, since the structure of the conical guide block is approximately elliptical, during the process of the conical guide block entering the guide groove, the discharge shaft can also be pushed to swing at a certain angle on the lifting and lowering swing arm, so that the plug-in groove swings to a corresponding position. At this time, the positioning block is opposite to the plug-in groove, and with the movement of the telescopic sleeve, the positioning block finally enters the inside of the plug-in groove, so that the position between the telescopic sleeve and the discharge shaft can be fixed. The telescopic sleeve can rotate inside the fixed frame, and at the same time, the telescopic sleeve and the slip ring rotate relative to each other, which does not affect the rotation of the discharge shaft itself.

[0017] 2. In the present invention, the deflection correction frame moves on the carrier frame, thereby driving the deflection correction roller to move along the axial direction of the deflection correction roller, and driving the paper pressing plate and the paper receiving table to move at the same time. At this time, through the setting of the deflection correction roller, due to the inclined arrangement of the deflection correction roller, when the deflection correction roller contacts the material, it can avoid the deflection correction roller damaging the edge of the material, reduce the impact on the edge of the material, and avoid damage to the material during correction. Furthermore, a layer of rubber material can be provided on the deflection correction roller to increase the friction between the deflection correction roller and the material, so that when the position of the deflection correction frame is adjusted, the material can be further corrected.

[0018] 3. In the present invention, the paper pressing frame drives the paper pressing board to move, and at the same time drives the paper pressing roller to move through the swing frame. When the paper pressing roller contacts the paper, the paper pressing roller rotates and the swing frame swings. At this time, the swing frame is separated from the paper pressing board. At this time, the top of the swing frame and the pressure plate roller rotate relative to each other. The pressure plate roller pushes the positioning seat to move in the positioning groove. At this time, the spring is compressed, and the rotation of the paper pressing roller can also make the paper unfold more smoothly, thereby improving the cutting accuracy and facilitating the connection between new and old paper.

[0019] 4. In the present invention, the third cylinder pushes the pressure-adjusting bracket to move through the connecting frame, and the pressure-adjusting bracket drives the swing frame to swing until the swing frame drives the pressure roller to abut against the corresponding feeding roller and the guide rod respectively, so as to facilitate loading. According to the different thickness of the material, the corresponding pressure-adjusting screw is turned, and the relative position between the pressure-adjusting bracket and the connecting frame is adjusted through the cooperation of the pressure-adjusting screw and the pressure-adjusting nut, so as to adjust the pressure between the feeding roller and the guide rod and the corresponding pressure roller respectively, so as to adjust the pressure of the feeding pressure roller to ensure more stable material transportation and loading.

[0020] 5. In the present invention, by setting the support component, the stable rotation of the feed shaft is ensured, thereby reducing the possibility of deviation of the printing material. By setting the feeding correction component, not only can the deviation of substrates of different thicknesses and sizes be corrected quickly and stably, but the edges of the substrates will not be worn, the possibility of damage to the substrates is reduced, and the printing quality is improved. By setting the feed component, the speed of movement of the substrate is made more stable, reducing the possibility of displacement of the substrate in the feed component during correction, thereby improving the printing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure from another angle in the present invention; Figure 3 It is a schematic diagram of a three-dimensional structure in cross section in the present invention; Figure 4 It is a structural schematic diagram of the rack material swinging assembly in the present invention; Figure 5 It is a schematic cross-sectional structural diagram of the support assembly in the present invention; Figure 6 It is a structural schematic diagram of the guide part in the present invention; Figure 7 It is a cross-sectional structural schematic diagram of the feeding and correcting assembly in the present invention; Figure 8 It is a schematic cross-sectional structure diagram of the paper pressing part in the present invention; Fig. 9 For the present invention Figure 7 A schematic diagram of the local enlarged structure at point A in the middle; Fig.10 It is a cross-sectional structural schematic diagram of the discharge assembly in the present invention; Fig.11 It is a structural schematic diagram of the discharge assembly in the present invention; Fig.12 It is a structural schematic diagram of the pressing part in the present invention.

[0023] The numbers in the figure represent: 1. Loading frame; 2. Swing shaft; 3. Lifting swing arm; 4. Unloading shaft; 5. Support frame; 6. Guide roller; 7. Control panel; 8. First cylinder; 9. Cylinder swing rod; 10. Fixed frame; 11. Telescopic sleeve; 12. Second cylinder; 13. Slip ring; 14. Conical guide block; 15. Guide groove; 16. Positioning block; 17. Plug-in groove; 18. Brake; 19. Housing; 20. Follow-up shaft; 21. Slide rod; 22. Brake pad; 23. Carrying frame; 24. Correction frame; 25. Correction roller; 26. Paper receiving table; 27. Paper pressing frame; 28. Electric cylinder ; 29. ​​Correction roller; 30. Correction electric eye; 31. Paper pressing board; 32. Swinging frame; 33. Paper pressing roller; 34. Positioning groove; 35. Spring; 36. Positioning seat; 37. Pressing plate roller; 38. Driving screw; 39. First motor; 40. Driving nut; 41. Tensioning device; 42. Feeding roller; 43. Guide roller; 44. Second motor; 45. Driven pulley; 46. Active pulley; 47. Transmission belt; 48. Tensioning wheel; 49. Swinging frame; 50. Pressure regulating bracket; 51. Pressure roller; 52. Third cylinder; 53. Connecting frame; 54. Pressure regulating nut; 55. Pressure regulating screw. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] like Figures 1 to 12 As shown, this embodiment proposes a feeding and correcting device for a rotary printing press, including a feeding frame 1, and also includes a swing shaft 2, a lifting and lowering swing arm 3, a material rack swing assembly, a discharge shaft 4, a support assembly, a support frame 5, a guide roller 6, a feeding and correcting assembly, a discharge assembly and a control panel 7. The swing shaft 2 is rotatably installed at the feed end of the feeding frame 1, and two lifting and lowering swing arms 3 are symmetrically and fixedly installed on the swing shaft 2. The material rack swing assembly is installed inside the feeding frame 1 for driving the swing shaft 2 to rotate. The material rack swing assembly includes a first cylinder 8 and a cylinder swing rod 9. Two first cylinders 8 are symmetrically and rotatably installed inside the feeding frame 1. Cylinder swing rods 9 are fixedly installed at both ends of the swing shaft 2, and the cylinder swing rod 9 is rotatably connected to the output end of the first cylinder 8.

[0026] Specifically, when printing the raw paper, first install the paper roll on the unloading shaft 4, at which time the first cylinder 8 is in an extended state, and then place the unloading shaft 4 on the lifting and lowering swing arm 3, start the first cylinder 8, and the first cylinder 8 drives the cylinder swing rod 9 to rotate, thereby driving the swing shaft 2 to rotate through the cylinder swing rod 9, thereby driving the lifting and lowering swing arm 3 to rotate around the axial position of the swing shaft 2, and moving the unloading shaft 4 to the installation position, and then the support assembly can be opened to fix the position of the unloading shaft 4, and at this time, the paper head on the paper roll is pulled so that it passes through the guide roller 6 in turn and enters the feeding and correcting assembly, and the paper after correction passes over another guide roller 6 and enters the unloading assembly, and the unloading assembly is started to drive the paper to move, and the discharge end of the feeding frame 1 is connected to the printing unit, and the paper moved out by the unloading assembly enters the printing assembly, and the feeding is completed.

[0027] like Figure 5 , Figure 6 As shown, the discharge shaft 4 is arranged at the feeding end of the loading frame 1, the discharge shaft 4 is located on the upper part of the swing shaft 2, the support assembly is installed inside the loading frame 1, and is used to support the discharge shaft 4. The support assembly includes a fixed frame 10, a telescopic sleeve 11, a second cylinder 12, a slip ring 13, a guide part and a brake part. Two fixed frames 10 are symmetrically and fixedly installed inside the loading frame 1, and the telescopic sleeves 11 are slidably installed inside the two fixed frames 10. The second cylinder 12 is fixedly installed on both sides of the two fixed frames 10. Slip rings 13 are rotatably installed on the two telescopic sleeves 11, and the slip ring 13 is fixedly connected to the output end of the second cylinder 12. The guide part is installed on the top of the telescopic sleeve 11 for connecting the discharge shaft 4, and the brake part is installed on the loading frame 1 to control the rotation of the discharge shaft 4.

[0028] Specifically, after the lifting and lowering arm 3 moves the discharge shaft 4 to the installation position, the second cylinder 12 is turned on, and the second cylinder 12 drives the slip ring 13 to move in the fixed frame 10, and the fixed frame 10 drives the telescopic sleeve 11 to move until the two telescopic sleeves 11 are respectively connected to the two ends of the discharge shaft 4 through the corresponding guide parts. When it is necessary to stop loading, the braking part is started to fix the discharge shaft 4.

[0029] The above, such as Figure 6 As shown, the guide portion includes a conical guide block 14, a guide groove 15, a positioning block 16 and a plug-in groove 17. The ends of the two telescopic sleeves 11 are fixedly installed with a conical guide block 14, and both ends of the discharge shaft 4 are provided with a guide groove 15, which is adapted to the conical guide block 14. The ends of the two telescopic sleeves 11 are symmetrically and fixedly installed with two positioning blocks 16, and both ends of the discharge shaft 4 are symmetrically provided with two plug-in grooves 17, which are adapted to the positioning block 16.

[0030] Specifically, as the telescopic sleeve 11 moves, the telescopic sleeve 11 drives the conical guide block 14 to move until the conical guide block 14 enters the guide groove 15. Since the structure of the conical guide block 14 is approximately elliptical, during the process of the conical guide block 14 entering the guide groove 15, the discharge shaft 4 can also be pushed to swing a certain angle on the lifting and lowering swing arm 3, so that the plug-in groove 17 swings to the corresponding position. At this time, the positioning block 16 is opposite to the plug-in groove 17, and as the telescopic sleeve 11 moves, the positioning block 16 finally enters the plug-in groove 17, which can fix the position between the telescopic sleeve 11 and the discharge shaft 4. During the feeding process, the discharge shaft 4 will continue to rotate. The discharge shaft 4 can drive the corresponding telescopic sleeve 11 to rotate through the setting of the conical guide block 14 and the positioning block 16. At this time, the telescopic sleeve 11 rotates inside the fixed frame 10, and at the same time, the telescopic sleeve 11 and the slip ring 13 rotate relative to each other, which does not affect the rotation of the discharge shaft 4 itself.

[0031] The above, such as Figure 5 As shown, the braking part includes a brake 18 and also includes a shell 19, a follower shaft 20, a slide rod 21 and a brake pad 22. The shell 19 is fixedly mounted on the feeding frame 1, wherein the brake 18 is mounted inside the shell 19, the follower shaft 20 is rotatably mounted inside the shell 19, the slide rod 21 is slidably mounted on the follower shaft 20, the slide rod 21 is fixedly connected to one of the telescopic sleeves 11, and the brake pad 22 is detachably mounted on the follower shaft 20, and the brake pad 22 is adapted to the brake 18.

[0032] Specifically, when the position of the discharge shaft 4 needs to be fixed, the slide rod 21 rotates with the rotation of the telescopic sleeve 11, and the slide rod 21 drives the follower shaft 20 to rotate, thereby driving the brake pad 22 to rotate. When the discharge shaft 4 needs to be fixed, the brake 18 is turned on, and the position of the discharge shaft 4 can be fixed through the cooperation between the brake 18 and the brake pad 22.

[0033] like Figures 7 to 9As shown, the support frame 5 is fixedly installed inside the feeding frame 1, and guide rollers 6 are rotatably installed on both sides of the support frame 5. The feeding correction component is installed on the support frame 5 to correct the moving material. The feeding correction component includes a bearing frame 23, a correction frame 24, a correction roller 25, a paper receiving platform 26, a paper pressing frame 27, an electric cylinder 28, a correction roller 29, a correction electric eye 30, a paper pressing part and a driving part. The bearing frame 23 is fixedly installed on the support frame 5, and the correction frame 24 is slidably installed on the upper part of the bearing frame 23. Correction rollers 25 are rotatably installed on both ends of the correction frame 24, and the paper receiving platform 26 is fixedly installed on the upper part of the correction frame 24. Two paper pressing racks 27 are symmetrically and slidably installed on the paper receiving platform 26, two electric cylinders 28 are symmetrically and fixedly installed at the bottom of the paper receiving platform 26, the output end of the electric cylinder 28 is fixedly connected to the paper pressing rack 27, two correcting rollers 29 are rotatably installed at both ends of the paper receiving platform 26, two adjacent correcting rollers 29 are symmetrically and tiltedly arranged, correcting electric eyes 30 are fixedly installed on both sides of the feeding frame 1, the correcting electric eyes 30 are located at the lower part of the correcting roller 25 at the discharge end, the paper pressing part is installed on the paper pressing rack 27, and is used to fix the material position when receiving paper, and the driving part is installed inside the carrier frame 23, and is used to drive the correcting rack 24 to move.

[0034] Specifically, when the paper head passes over the guide roller 6 and enters the paper receiving platform 26 from the deflection correction roller 25 at the feeding end of the deflection correction frame 24, the paper head will pass through the paper pressing frame 27 and bypass another deflection correction roller 25 and the guide roller 6 in turn. At this time, the paper will pass through the two deflection correction electric eyes 30. As the paper moves, the deflection correction electric eyes 30 will monitor the feeding situation of the paper in real time to determine whether the moving direction of the material deviates. When the moving direction deviates, the driving unit is started, and the driving unit drives the deflection correction frame 24 to move on the carrier frame 23, thereby driving the deflection correction roller 25 to move along the axial direction of the deflection correction roller 25, and at the same time drives the paper pressing board 31 and the paper receiving platform 26 to move. At this time, through the setting of the deflection correction roller 29, since the deflection correction roller 29 is arranged at an angle, when the deflection correction roller 29 contacts the material, the influence of the deflection correction roller 29 on the quality of the material itself can be reduced, thereby avoiding damage to the deflection correction roller 29. The edge of the material is reduced, the impact on the edge of the material is reduced, and the damage to the material caused by the correction is avoided. Furthermore, a layer of rubber material can be set on the correction roller 25 to increase the friction between the correction roller 25 and the material, so that when the position of the correction frame 24 is adjusted, the material is further corrected. When paper needs to be spliced, the tail of the previous roll of paper is overlapped with the head of the next roll of paper on the paper receiving platform 26. At this time, the electric cylinder 28 on one side is turned on, and the electric cylinder 28 drives the paper pressing frame 27 to move, and the paper pressing frame 27 drives the paper pressing part to move until the paper pressing part fixes the tail of the previous roll of paper, and then the head of the next roll of paper is pulled onto the paper receiving platform 26. Repeat the above steps. After the head of the next roll of paper is fixed on the paper receiving platform 26, the connection between the new and old rolls of paper can be cut with a blade, and then it can be glued with tape. The cut waste is taken away and work can be continued.

[0035] The above, such as Figure 8 , Fig. 9 As shown, the paper pressing part includes a paper pressing board 31, a swing frame 32, a paper pressing roller 33, a positioning groove 34, a spring 35, a positioning seat 36 and a pressure plate roller 37. The insides of the two paper pressing frames 27 are cleaned and fixedly installed with the paper pressing board 31. The two paper pressing boards 31 are symmetrically arranged. The insides of the two paper pressing frames 27 are rotatably installed with the swing frame 32. The bottom of the swing frame 32 abuts against the top of the paper pressing board 31. The end of the swing frame 32 is rotatably installed with the paper pressing roller 33. A plurality of positioning grooves 34 are equidistantly provided on the inner top walls of the two paper pressing frames 27. A spring 35 is fixedly installed inside each positioning groove 34. A positioning seat 36 is fixedly installed at the bottom of each spring 35. The positioning seat 36 is slidably installed inside the positioning groove 34. A pressure plate roller 37 is rotatably installed at the bottom of each positioning seat 36, and the pressure plate roller 37 abuts against the swing frame 32.

[0036] Specifically, when it is necessary to connect the papers, the tail of the previous paper roll and the head of the next paper roll need to be fixed on the paper pressing board 31. At this time, as the paper pressing frame 27 moves, the paper pressing frame 27 drives the paper pressing board 31 to move, and at the same time drives the paper pressing roller 33 to move through the swing frame 32. When the paper pressing roller 33 contacts the paper, the paper pressing roller 33 rotates and the swing frame 32 swings. At this time, the swing frame 32 is separated from the paper pressing board 31. At this time, the top of the swing frame 32 and the pressure plate roller 37 rotate relative to each other, and the pressure plate roller 37 pushes the positioning seat 36 to move in the positioning groove 34. At this time, the spring 35 is compressed, and the rotation of the paper pressing roller 33 can also make the paper unfold more smoothly, thereby improving the cutting accuracy. Until the bottom of the paper pressing board 31 abuts against the paper, the paper can be cut.

[0037] The above, such as Figure 7 As shown, the driving part includes a driving screw 38, a first motor 39 and a driving nut 40. The driving screw 38 is rotatably installed inside the carrier frame 23, and the first motor 39 is fixedly installed inside the loading frame 1. The output end of the first motor 39 is fixedly connected to the driving screw 38. The driving screw 38 is threadedly installed with a driving nut 40, and the driving nut 40 is fixedly connected to the deviation correction frame 24.

[0038] Specifically, when driving the deflection correcting frame 24 to move on the carrier frame 23 , the first motor 39 is started, the first motor 39 drives the driving screw 38 to rotate, and the driving screw 38 drives the driving nut 40 to move, thereby driving the deflection correcting frame 24 to move on the carrier frame 23 .

[0039] like Fig.10 , Fig.11 As shown, the discharge assembly is installed at the discharge end of the loading frame 1, and is used to drive the material to move out of the loading frame 1. The control panel 7 is fixedly installed on the loading frame 1. The discharge assembly includes a tensioning device 41, which is fixedly installed inside the loading frame 1, and also includes a feeding roller 42, a guide rod 43, a second motor 44, a driven pulley 45, a driving pulley 46, a transmission belt 47 and a pressing part. The feeding roller 42 is rotatably installed at the discharge end of the loading frame 1, and the guide rod 43 is rotatably installed. Between the feed roller 42 and the guide roller 6, the second motor 44 is fixedly installed inside the loading frame 1, a driven pulley 45 is fixedly installed at the end of the feed roller 42, a driving pulley 46 is fixedly installed at the output end of the second motor 44, a transmission belt 47 is tensioned between the driven pulley 45 and the driving pulley 46, a tensioning wheel 48 arranged in the tensioning device 41 abuts against the transmission belt 47, and a pressing part is installed inside the loading frame 1, which is used to apply pressure to the feed roller 42 and the guide roller 43.

[0040] Specifically, when the conveying material moves toward the printing unit, the paper head is first passed around the feed roller 42 and the guide rod 43. At this time, the paper is more closely attached to the feed roller 42 and the guide rod 43 through the setting of the pressing part. At this time, the second motor 44 is started, and the second motor 44 drives the active pulley 46 to rotate. The active pulley 46 drives the driven pulley 45 to rotate through the transmission belt 47, thereby driving the feed roller 42 to rotate, and the material can be loaded.

[0041] It should be added that the transmission belt 47 is preferably a toothed belt. After the machine has been running for a period of time, the toothed belt will stretch and become longer, and the toothed belt may jump teeth, thereby causing the conveyor roller to rotate abnormally or fail to rotate. At this time, the position of the tensioning wheel 48 should be adjusted through the setting of the tensioning device 41 to tension the transmission belt 47. If the transmission belt 47 is broken, a new transmission belt 47 needs to be hung and the transmission belt 47 can be tensioned according to the above method.

[0042] The above, such as Fig.12 As shown, the pressing part includes a swing frame 49, a pressure-adjusting bracket 50, a pressure roller 51, a third cylinder 52, a connecting frame 53, a pressure-adjusting nut 54 and a pressure-adjusting screw 55. Two swing frames 49 are symmetrically and rotatably installed on both sides of the feeding frame 1. Pressure-adjusting brackets 50 are fixedly installed on four swing frames 49. Two adjacent pressure-adjusting brackets 50 are symmetrically arranged. A pressure roller 51 is rotatably installed between two opposite pressure roller 51 brackets. The axial position of the pressure roller 51 is parallel to the axial position of the feed roller 42 and the guide roller 43. The two pressure rollers 51 are respectively adapted to the feed roller 42 and the guide roller 43. Two third cylinders 52 are symmetrically and rotatably installed on both sides of the feeding frame 1. Connecting frames 53 are rotatably installed on the output ends of the four third cylinders 52. Pressure-adjusting nuts 54 are fixedly installed on the four pressure-adjusting brackets 50. Pressure-adjusting screws 55 are threadedly installed inside the four pressure-adjusting nuts 54. The pressure-adjusting screws 55 are rotatably connected to the connecting frame 53.

[0043] Specifically, when driving the paper to move, the third cylinder 52 is started first, and the third cylinder 52 pushes the pressure-adjusting bracket 50 to move through the connecting frame 53, and the pressure-adjusting bracket 50 drives the swing frame 49 to swing until the swing frame 49 drives the pressure roller 51 to abut against the corresponding feeding roller 42 and the guide rod 43 respectively, so as to facilitate loading. According to the thickness of the material, the pressure of the feeding pressure roller 51 can also be appropriately adjusted to achieve more stable conveying and loading. At this time, the corresponding pressure-adjusting screw 55 is turned, and the relative position between the pressure-adjusting bracket 50 and the connecting frame 53 is adjusted through the cooperation of the pressure-adjusting screw 55 and the pressure-adjusting nut 54, so as to adjust the pressure between the feeding roller 42 and the guide rod 43 and the corresponding pressure roller 51. It should be added that during operation, it is necessary to ensure that the pressure on both ends of the pressure roller 51 is uniform.

[0044] To sum up, when printing raw paper, first install the paper roll on the unloading shaft 4, at which time the first cylinder 8 is in an extended state, and then place the unloading shaft 4 on the lifting and lowering swing arm 3, start the first cylinder 8, and the first cylinder 8 drives the cylinder rocker 9 to rotate, thereby driving the swing shaft 2 to rotate through the cylinder rocker 9, thereby driving the lifting and lowering swing arm 3 to rotate around the axial position of the swing shaft 2, and moving the unloading shaft 4 to the installation position.

[0045] After the lifting and lowering arm 3 moves the discharge shaft 4 to the installation position, the second cylinder 12 is turned on, and the second cylinder 12 drives the slip ring 13 to move in the fixed frame 10, and the fixed frame 10 drives the telescopic sleeve 11 to move. With the movement of the telescopic sleeve 11, the telescopic sleeve 11 drives the conical guide block 14 to move until the conical guide block 14 enters the guide groove 15. Since the structure of the conical guide block 14 is similar to an ellipse, during the process of the conical guide block 14 entering the guide groove 15, the discharge shaft 4 can also be pushed to swing at a certain angle on the lifting and lowering arm 3, so that the plug-in groove 17 swings to the corresponding position. At this time, the positioning block 16 is opposite to the plug-in groove 17, and with the movement of the telescopic sleeve 11, the positioning block 16 finally enters the plug-in groove 17, so as to fix the position between the telescopic sleeve 11 and the discharge shaft 4.

[0046] During the feeding process, the discharge shaft 4 will rotate continuously. The discharge shaft 4 can drive the corresponding telescopic sleeve 11 to rotate through the setting of the tapered guide block 14 and the positioning block 16. At this time, the telescopic sleeve 11 rotates inside the fixed frame 10. At the same time, relative rotation occurs between the telescopic sleeve 11 and the slip ring 13, which does not affect the rotation of the discharge shaft 4 itself. When the position of the discharge shaft 4 needs to be fixed, the slide rod 21 rotates with the rotation of the telescopic sleeve 11, and the slide rod 21 drives the follower shaft 20 to rotate, thereby driving the brake pad 22 to rotate. When the discharge shaft 4 needs to be fixed, the brake 18 is turned on. The position of the discharge shaft 4 can be fixed through the cooperation between the brake 18 and the brake pad 22, thereby improving the use efficiency.

[0047] At this time, the material can be loaded, and the paper head on the paper roll is pulled so that it passes through the guide roller 6 in turn and enters the correcting roller 25 at the feeding end of the correcting frame 24. Then the paper head will pass through the paper pressing frame 27 and bypass another correcting roller 25 and the guide roller 6 in turn. At this time, the paper will pass through the two correcting electric eyes 30. After the paper head passes through the feeding roller 42 and the guide roller 43, the paper head can be introduced into the printing unit for printing. At this time, the material can be loaded. Before driving the paper to move, the third cylinder 52 is started first. The third cylinder 52 pushes the pressure regulating bracket 50 to move through the connecting frame 53, and the pressure regulating bracket 50 drives the swing frame 49 to swing Move until the swing frame 49 drives the pressure roller 51 to abut against the corresponding feed roller 42 and the guide rod 43 respectively, so as to facilitate loading. According to the different material thicknesses, the pressure of the feed pressure roller 51 can also be appropriately adjusted to achieve more stable conveying and loading. At this time, the corresponding pressure regulating screw 55 is turned, and the relative position between the pressure regulating bracket 50 and the connecting frame 53 is adjusted through the cooperation of the pressure regulating screw 55 and the pressure regulating nut 54, so as to adjust the pressure between the feed roller 42 and the guide rod 43 and the corresponding pressure roller 51 respectively. It should be added that during the operation, it is necessary to ensure that the pressure at both ends of the pressure roller 51 is uniform.

[0048] At this time, the second motor 44 is started, and the second motor 44 drives the active pulley 46 to rotate, and the active pulley 46 drives the driven pulley 45 to rotate through the transmission belt 47, thereby driving the feeding roller 42 to rotate, and the material can be loaded.

[0049] As the paper moves, the deflection correction electric eye 30 will monitor the paper feeding situation in real time to determine whether the moving direction of the material deviates. When the moving direction deviates, the first motor 39 is started, and the first motor 39 drives the driving screw 38 to rotate, and the driving screw 38 drives the driving nut 40 to move, thereby driving the deflection correction roller 25 to move along the axial direction of the deflection correction roller 25, and at the same time drives the paper pressing board 31 and the paper receiving platform 26 to move. At this time, through the setting of the deflection correction roller 29, due to the inclined arrangement of the deflection correction roller 29, when the deflection correction roller 29 contacts the material, the influence of the deflection correction roller 29 on the quality of the material itself can be reduced, and the deflection correction roller 29 can be avoided from damaging the edge of the material, reducing the influence on the edge of the material, and avoiding damage to the material caused by the deflection correction. Furthermore, a layer of rubber material can be set on the deflection correction roller 25 to increase the friction between the deflection correction roller 25 and the material, so that when the position of the deflection correction frame 24 is adjusted, the material can be further corrected.

[0050] When paper splicing is required, the tail of the previous roll of paper is overlapped with the head of the next roll of paper on the paper splicing platform 26. At this time, the electric cylinder 28 on one side is turned on, and the electric cylinder 28 drives the paper pressing frame 27 to move. As the paper pressing frame 27 moves, the paper pressing board 31 is driven to move, and the paper pressing roller 33 is driven to move through the swing frame 32. When the paper pressing roller 33 contacts the paper, the paper pressing roller 33 rotates, and the swing frame 32 swings. At this time, the swing frame 32 is separated from the paper pressing board 31, and the top of the swing frame 32 is at this time The gap between the pressure plate roller 37 The paper roll 31 is rotated relative to the paper roll 31, and the pressure plate roller 37 pushes the positioning seat 36 to move in the positioning groove 34. At this time, the spring 35 is compressed, and the rotation of the paper pressing roller 33 can also make the paper unfold more smoothly, thereby improving the cutting accuracy, until the bottom of the paper pressing plate 31 abuts against the paper, and then the paper head of the next roll of paper is pulled onto the paper receiving platform 26. The above steps are repeated, and after the paper head of the next roll of paper is fixed on the paper receiving platform 26, the connection between the new and old rolls of paper can be cut, and then they can be glued together with tape, the cut waste can be collected, and work can be continued.

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A feeding deviation correction device for a rotary printing press, comprising a feeding frame (1), characterized in that: Also includes: A swing shaft (2), the swing shaft (2) being rotatably mounted on the feeding end of the loading frame (1); A lifting and lowering swing arm (3), wherein two lifting and lowering swing arms (3) are symmetrically and fixedly mounted on the swing shaft (2); A material rack swing assembly, the material rack swing assembly being installed inside the loading machine frame (1) and being used to drive the swing shaft (2) to rotate; A discharge shaft (4), the discharge shaft (4) being arranged at the feeding end of the loading frame (1), and the discharge shaft (4) being located above the swing shaft (2); A support assembly, the support assembly being installed inside the loading frame (1) and used for supporting the discharge shaft (4); A supporting frame (5), the supporting frame (5) being fixedly mounted inside the feeding frame (1); Guide rollers (6), the guide rollers (6) being rotatably mounted on both sides of the support frame (5); A material feeding deviation correction component, the material feeding deviation correction component is installed on the support frame (5) and is used to correct the movement of the material; A material discharge assembly, the material discharge assembly being mounted on a discharge end of the loading frame (1) and being used to drive the material to be moved out of the loading frame (1); A control panel (7), wherein the control panel (7) is fixedly mounted on the loading machine frame (1).

2. A feeding deviation correction device for a rotary printing press according to claim 1, characterized in that: The rack material swing assembly comprises: A first cylinder (8), wherein two first cylinders (8) are symmetrically and rotatably mounted inside the feeding frame (1); A cylinder swing rod (9), wherein the two ends of the swing shaft (2) are fixedly mounted with the cylinder swing rod (9), and the cylinder swing rod (9) is rotatably connected to the output end of the first cylinder (8).

3. The feeding deviation correction device of a rotary printing press according to claim 2, characterized in that: The support assembly comprises: A fixing frame (10), wherein two fixing frames (10) are symmetrically and fixedly installed inside the feeding frame (1); A telescopic sleeve (11), wherein the telescopic sleeve (11) is slidably mounted inside the two fixing frames (10); A second cylinder (12), the second cylinder (12) being fixedly mounted on both sides of the two fixing frames (10); A slip ring (13), the slip ring (13) being rotatably mounted on both of the telescopic sleeves (11), the slip ring (13) being fixedly connected to an output end of the second cylinder (12); A guide portion, the guide portion being mounted on the top of the telescopic sleeve (11) and being used for connecting the discharge shaft (4); A braking part, the braking part is mounted on the loading frame (1) and is used to control the rotation of the discharge shaft (4).

4. The feeding deviation correction device of a rotary printing press according to claim 3, characterized in that: The guide portion comprises: A conical guide block (14), the conical guide block (14) being fixedly mounted on the ends of the two telescopic sleeves (11); Guide grooves (15), both ends of the discharge shaft (4) are provided with the guide grooves (15), and the guide grooves (15) are adapted to fit the conical guide blocks (14); Positioning blocks (16), the ends of the two telescopic sleeves (11) being symmetrically and fixedly mounted with two positioning blocks (16); Insertion grooves (17), two insertion grooves (17) are symmetrically provided at both ends of the discharge shaft (4), and the insertion grooves (17) are adapted to the positioning blocks (16).

5. The feed deviation correction device for a rotary printing press according to claim 4, wherein the braking part comprises a brake (18), characterized in that: Also includes: A housing (19), wherein the housing (19) is fixedly mounted on the loading frame (1); Wherein, the brake (18) is installed inside the housing (19); A follower shaft (20), the follower shaft (20) being rotatably mounted inside the housing (19); A slide rod (21), the slide rod (21) being slidably mounted on the follower shaft (20), the slide rod (21) being fixedly connected to one of the telescopic sleeves (11); A brake pad (22), wherein the brake pad (22) is detachably mounted on the follower shaft (20), and the brake pad (22) is adapted to the brake (18).

6. The feeding deviation correction device of a rotary printing press according to claim 5, characterized in that: The feeding and correcting assembly comprises: A carrier frame (23), the carrier frame (23) being fixedly mounted on the supporting frame (5); A deflection correction frame (24), the deflection correction frame (24) being slidably mounted on an upper portion of the supporting frame (23); A deflection correction roller (25), the deflection correction roller (25) being rotatably mounted on both ends of the deflection correction frame (24); A paper receiving platform (26), wherein the paper receiving platform (26) is fixedly mounted on the upper part of the deflection correction frame (24); A paper pressing rack (27), two of which are symmetrically and slidably mounted on the paper receiving platform (26); An electric cylinder (28), two electric cylinders (28) are symmetrically and fixedly mounted on the bottom of the paper receiving platform (26), and the output ends of the electric cylinders (28) are fixedly connected to the paper pressing frame (27); Deviation correction rollers (29), two deviation correction rollers (29) are rotatably mounted on both ends of the paper receiving platform (26), and two adjacent deviation correction rollers (29) are symmetrically and tiltedly arranged; A deflection correction electric eye (30), wherein the deflection correction electric eye (30) is fixedly mounted on both sides of the inside of the feeding frame (1), and the deflection correction electric eye (30) is located below the deflection correction roller (25) at the discharge end; A paper pressing part, the paper pressing part is mounted on the paper pressing frame (27) and is used to fix the position of the material when splicing the paper; A driving unit, the driving unit is installed inside the supporting frame (23) and is used to drive the deviation correcting frame (24) to move.

7. The feeding deviation correction device of a rotary printing press according to claim 6, characterized in that: The paper pressing part comprises: A paper pressing board (31), the interiors of the two paper pressing frames (27) are cleaned and fixedly mounted with the paper pressing board (31), and the two paper pressing boards (31) are symmetrically arranged; A swing frame (32), wherein the swing frame (32) is rotatably mounted inside the two paper pressing frames (27), and the bottom of the swing frame (32) abuts against the top of the paper pressing board (31); A paper pressing roller (33), the paper pressing roller (33) being rotatably mounted on the end of the swing frame (32); Positioning grooves (34), a plurality of positioning grooves (34) are provided at equal distances on the inner top walls of the two paper pressing racks (27); A spring (35), wherein each of the positioning grooves (34) is fixedly mounted with the spring (35); A positioning seat (36), wherein the bottom of each spring (35) is fixedly mounted with the positioning seat (36), and the positioning seat (36) is slidably mounted inside the positioning groove (34); A pressure plate roller (37), the bottom of each positioning seat (36) is rotatably mounted with the pressure plate roller (37), and the pressure plate roller (37) abuts against the swing frame (32).

8. The feeding deviation correction device of a rotary printing press according to claim 7, characterized in that: The driving unit comprises: A driving screw (38), the driving screw (38) being rotatably mounted inside the carrier (23); a first motor (39), the first motor (39) being fixedly mounted inside the feeding frame (1), and an output end of the first motor (39) being fixedly connected to the driving screw (38); A drive nut (40) is threadedly mounted on the drive screw rod (38), and the drive nut (40) is fixedly connected to the deviation correction frame (24).

9. A feeding deviation correction device for a rotary printing press according to claim 8, wherein the unloading assembly comprises a tensioning device (41), and the tensioning device (41) is fixedly installed inside the feeding frame (1), characterized in that: Also includes: A feeding roller (42), the feeding roller (42) being rotatably mounted on the discharge end of the loading frame (1); A material guide roller (43), the material guide roller (43) being rotatably mounted between the feed roller (42) and the guide roller (6); A second motor (44), the second motor (44) being fixedly mounted inside the loading frame (1); A driven pulley (45), the driven pulley (45) being fixedly mounted on the end of the feed roller (42); A driving pulley (46), the output end of the second motor (44) being fixedly mounted with the driving pulley (46); A transmission belt (47), wherein the transmission belt (47) is tensioned between the driven pulley (45) and the driving pulley (46), and a tensioning wheel (48) disposed in the tensioning device (41) abuts against the transmission belt (47); A pressing part, the pressing part is installed inside the feeding frame (1) and is used to apply pressure to the feeding roller (42) and the guide roller (43).

10. The feeding deviation correction device of a rotary printing press according to claim 9, characterized in that: The pressing part comprises: Swing frames (49), two swing frames (49) are symmetrically and rotatably mounted on both sides of the interior of the loading frame (1); A voltage regulating bracket (50), wherein the four swing frames (49) are all fixedly mounted with the voltage regulating bracket (50), and two adjacent voltage regulating brackets (50) are symmetrically arranged; A pressure roller (51), the pressure roller (51) being rotatably mounted between two opposing pressure roller (51) brackets, the axis position of the pressure roller (51) being parallel to the axis positions of the feed roller (42) and the guide roller (43), and the two pressure rollers (51) being respectively adapted to the feed roller (42) and the guide roller (43); A third cylinder (52), two third cylinders (52) are symmetrically and rotatably mounted on both sides of the interior of the loading frame (1); A connecting frame (53), the connecting frame (53) being rotatably mounted on the output ends of the four third cylinders (52); A pressure regulating nut (54), the pressure regulating nut (54) being fixedly mounted on each of the four pressure regulating brackets (50); A pressure regulating screw (55) is threadedly mounted inside each of the four pressure regulating nuts (54), and the pressure regulating screw (55) is rotatably connected to the connecting frame (53).

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