A device for preventing base paper from deviating when pulling a shaft

Abstract

The present invention relates to a shaft puller base paper anti-deviation device, which mainly solves the problem in the prior art that the base paper roll is easily driven to deviate during the paper shaft pulling process, causing damage to the base paper roll. The device comprises a frame, an anti-deviation control system arranged on the frame, a material discharge component, a guide component and a shaft pulling component. The material discharge component and the shaft pulling component are respectively arranged at the longitudinal ends of the guide component. The material discharge component comprises a lifting mechanism, a mounting seat, a first flap and a second flap, a first linear drive device and a second linear drive device, a correction mechanism, and a third linear drive device that drives the correction mechanism to move up and down. The upper end of the correction mechanism is provided with a support platform, a material stop frame is provided on the longitudinal end of the support platform close to the guide component, and a roller component is provided in the middle of the support platform. The anti-deviation control system is electrically connected to the shaft pulling component, the lifting mechanism, the roller assembly, the correction mechanism, the first linear drive device, the second linear drive device and the third linear drive device respectively.

Description

Technical Field

[0001] The invention relates to a device for preventing base paper from deviating when being pulled out of a shaft. Background Art

[0002] The applicant applied for a patent application number 202011595589.6 on December 29, 2020. The patent name is a shaft placing frame and shaft puller for toilet paper machine shaft pulling, which discloses in detail that it includes a base frame, a discharging platform for placing paper rolls is provided at the upper end of the base frame, and the discharging platform can offset the paper roll to the shaft pulling area of ​​the discharging platform, and the shaft pulling area corresponds to the center line position of the shaft when the paper roll is pulled out; the discharging platform includes a first flap and a second flap, and the first flap and the second flap can both be flipped inward; at least one shaft connecting frame is provided on the discharging platform, and the shaft connecting frame is located above the shaft pulling area when in use, and the height of the shaft connecting frame is not higher than the plane height of the discharging platform when not in use; the shaft connecting frame is rotatably arranged between the first flap and the second flap, and at least one of the first flap and the second flap is provided with at least one placement groove adapted to the shaft connecting frame, and the placement groove can be used for the shaft connecting frame to be rotatably placed therein. When in use, the paper roll is placed on the unloading platform, and the driving device drives the first flap and the second flap to rotate inward to form a V-shaped structure. The paper roll automatically rolls to the central axis position to realize automatic positioning of the paper roll, and then the shaft puller is used to pull the shaft. On the one hand, it reduces the workload of the operator, and on the other hand, it avoids the safety risks of people walking under the vehicle, while improving production efficiency; and the paper shaft is clamped by the shaft clamping frame, and the frame slides on the guide rail to drive the shaft clamping frame to move to pull the shaft, and the paper shaft is clamped into the clamping hole and clamped by the upper pressure plate and the lower support plate, so that the paper shaft movement is more stable during the shaft pulling process. At the same time, after the shaft pulling is completed, the paper roll is moved and the paper shaft is moved in the opposite direction to the shaft connecting frame, and the paper shaft is erected by the shaft connecting frame to facilitate the lifting of the paper shaft.

[0003] However, it was found during long-term use that when the base paper roll was clamped by the first flap and the second flap, the paper shaft inside the base paper roll rested against the inner ring of the base paper roll. When the shaft puller pulled the shaft, there was friction between the paper shaft and the base paper roll, and the shaft clamping frame was clamped at one end of the paper shaft. Due to the processing accuracy of the equipment, the base paper was easily driven to run with the paper shaft during the paper shaft pulling out process, thereby hitting the mechanical limiter. The multiple layers of paper on the surface of the base paper roll would be damaged, causing damage to the base paper roll. About 0.5 tons of base paper needed to be peeled off and copied back each time, resulting in a lot of waste. Summary of the Invention

[0004] Therefore, in view of the above problems, the present invention provides a device for preventing the base paper from deviating during the paper shaft pulling process, which mainly solves the problem in the prior art that the base paper roll is easily deviated during the paper shaft pulling process, causing damage to the base paper roll.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] The lifting mechanism is a lifting mechanism that is provided on the frame, and the lifting mechanism is a lifting mechanism that is provided on the lifting mechanism, and the lifting mechanism is a lifting mechanism that is provided on the lifting mechanism, The lifting mechanism and the lifting mechanism are hinged on the lateral ends of the mounting seat, a first flap and a second flap are hinged on the lateral ends of the mounting seat, a first linear drive device and a second linear drive device respectively drive the first flap and the second flap to swing, a correction mechanism provided in the lateral middle of the mounting seat, and a third linear drive device that drives the correction mechanism to move up and down. The upper end of the correction mechanism has a support platform, and a material stopping frame is provided on the support platform near the longitudinal end of the guide assembly. The middle of the support platform is provided with a roller assembly, and the anti-runaway control system is electrically connected to the pull-shaft assembly, the lifting mechanism, the roller assembly, the correction mechanism, the first linear drive device, the second linear drive device, and the third linear drive device.

[0007] Furthermore, the anti-deviation control system includes a controller, a photoelectric sensor arranged at the other longitudinal end of the support platform, a first pressure sensor and a second pressure sensor arranged on both longitudinal sides of the support platform for detecting the base paper, a third pressure sensor arranged on the material blocking rack, an angle sensor arranged on the roller assembly for detecting the roller angle, a first position sensor for detecting the height position of the base paper, a second position sensor for detecting the center axis position of the paper shaft, and a third position sensor for detecting the center position of the shaft pulling assembly. The photoelectric sensor, the first pressure sensor, the second pressure sensor, the third pressure sensor, the angle sensor, the first position sensor, the second position sensor, and the third position sensor are electrically connected to the input end of the controller respectively, and the shaft pulling assembly, the lifting mechanism, the roller assembly, the deviation correction mechanism, the first linear drive device, the second linear drive device, and the third linear drive device are electrically connected to the output end of the controller respectively.

[0008] Furthermore, the lifting mechanism includes a base, two groups of lifting assemblies arranged on both sides of the base, a connecting shaft connecting the two lifting assemblies, a swing arm arranged on the connecting shaft and a fourth linear drive device, the two groups of lifting assemblies are respectively connected to the base and the mounting seat, the two ends of the fourth linear drive device are respectively connected to the base and the mounting seat, and the middle of the fourth linear drive device is hinged to the free end of the swing arm, the lifting assembly includes a first connecting rod and a second connecting rod hinged to each other in the middle, a guide groove provided on the upper surface of the base and located on one longitudinal side, a guide rail provided on the lower surface of the mounting seat and corresponding to the guide groove, the axial ends of the connecting shaft are hinged at the hinges of the first connecting rod and the second connecting rod of the lifting assembly, one end of the first connecting rod is hinged to the other longitudinal side of the base, the other end of the first connecting rod is provided with a guide wheel cooperating with the guide rail, one end of the second connecting rod is hinged to the other longitudinal side of the mounting seat, and the other end of the second connecting rod is provided with a slider cooperating with the guide groove.

[0009] Furthermore, the correction mechanism includes a correction rail arranged on the support platform, a correction slider arranged on the correction rail, a correction seat arranged on the correction slider, a slot arranged on the longitudinal side of the support platform, a pull rod connected to the correction slider, and a locking mechanism arranged on the correction slider for limiting the movement of the correction slider. The slots are distributed along the longitudinal direction, and the material stop frame is arranged at one longitudinal end of the correction seat. The correction seat is pulled by the pull rod, thereby driving the material stop frame to slide along the slot.

[0010] Furthermore, the correction seat is provided with four threaded holes distributed in a matrix, and the material blocking frame is provided with strip grooves, each of which is distributed along the vertical direction. The material blocking frame is locked by means of bolts cooperating with the strip grooves and threaded holes.

[0011] Furthermore, the locking mechanism includes a positioning hole provided on the correction slide rail, a mounting groove provided on the correction slider, a positioning rod and a spring provided in the mounting groove, a pull rope connected to the positioning rod at one end, a locking seat fixed on the free end of the pull rod, and a lever hinged to the locking seat. The other end of the pull rope is connected to the lever. When in use, by pinching the lever and the pull rod toward each other, the positioning rod is driven by the pull rope to squeeze the spring to move outward, so that the positioning rod is disengaged from the positioning hole.

[0012] Furthermore, the roller assembly includes a servo motor, a connecting seat, a rotating shaft rotatably arranged on the connecting seat, a roller fixed on the rotating shaft, a rubber sleeve mounted on the outer surface of the roller, and an electromagnetic clutch connecting the servo motor and the rotating shaft. The roller is 3mm to 5mm higher than the supporting surface of the support platform, and the angle sensor is arranged on the rotating shaft.

[0013] Furthermore, the electromagnetic clutch includes a housing, a first rotating shaft and a second rotating shaft rotatably arranged on the housing, a first disk body fixed on the first rotating shaft, a first ratchet arranged on the periphery of the first disk body, an electromagnet arranged in the middle of the first disk body, a second disk body sleeved on the second rotating shaft, a second ratchet arranged on the periphery of the second disk body, a magnet arranged in the middle of the second disk body, and a clutch spring arranged between the first disk body and the second disk body, the second rotating shaft is provided with a clamping strip distributed along its axial direction, the second disk body is provided with a clamping groove cooperating with the clamping strip, the servo motor is connected to the first rotating shaft, and the rotating shaft is connected to the second rotating shaft.

[0014] By adopting the above-mentioned technical scheme, the beneficial effect of the present invention is as follows: the anti-deviation device for the base paper of the shaft puller controls the correspondence between the center axis of the base paper roll and the center line of the shaft pulling assembly through the set photoelectric sensor, the first pressure sensor, the second pressure sensor, the third pressure sensor, the angle sensor, the first position sensor, and the second position sensor respectively with the controller and the third position sensor, which facilitates the high-precision operation of the shaft pulling assembly and improves the shaft pulling effect. It can also detect the force offset and movement of the base paper roll in real time during the shaft pulling process, thereby analyzing the uniform force condition of the base paper roll, and then realize micro-correction of the base paper roll by controlling the relative movement of the roller assembly and the base paper roll, avoid damage to the base paper roll during the shaft pulling process, improve the shaft pulling quality, and through the control method of the above-mentioned deviation control system, avoid damage to the surface of the base paper roll caused by the roller assembly during the correction process, and can achieve a better correction effect, improve the correction efficiency, and thus improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a front view structural schematic diagram of an embodiment of the present invention;

[0016] Figure 2 1 is a schematic diagram of the three-dimensional structure of the discharge assembly in an embodiment of the present invention;

[0017] Figure 3 1 is a front view structural diagram of the raising and lowering of the lifting mechanism in the discharge assembly in an embodiment of the present invention;

[0018] Figure 4 1 is a left-side structural schematic diagram of a discharge assembly according to an embodiment of the present invention;

[0019] Figure 5 2 is a schematic cross-sectional structural diagram of the correction mechanism along the transverse direction in an embodiment of the present invention;

[0020] Figure 6 1 is a schematic cross-sectional structural diagram along the longitudinal direction of the correction mechanism in an embodiment of the present invention;

[0021] Figure 7 yes Figure 6A partial enlarged view of point A in the middle;

[0022] Figure 8 is a schematic structural diagram of a roller assembly according to an embodiment of the present invention;

[0023] Figure 9 1 is a schematic cross-sectional view of the electromagnetic clutch according to an embodiment of the present invention;

[0024] Figure 10 4 is a circuit module diagram of the anti-slip control system in an embodiment of the present invention. DETAILED DESCRIPTION

[0025] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0026] The embodiments of the present invention are:

[0027] refer to Figures 1 to 10As shown, a shaft puller shaft puller base paper anti-deviation device includes a frame, an anti-deviation control system 1 arranged on the frame, a material discharge component 2, a guide component 3 and a shaft puller component 4, wherein the guide direction extending along the guide component 3 is defined as the longitudinal direction, and the direction perpendicular to the longitudinal direction and displaced in the same horizontal plane is defined as the transverse direction. The material discharge component 2 and the shaft puller component 4 are respectively arranged at the longitudinal ends of the guide component 3, and the material discharge component 2 includes a lifting mechanism 21 arranged on the frame, a mounting seat 22 arranged on the lifting mechanism 21, and a transverse direction of the mounting seat 22. The first flap 23 and the second flap 24 are hinged at both ends, the first linear drive device 25 and the second linear drive device 26 respectively drive the first flap 23 and the second flap 24 to swing, the correction mechanism 5 is arranged in the horizontal middle of the mounting seat 22, and the third linear drive device 6 drives the correction mechanism 5 to move up and down. The upper end of the correction mechanism 5 has a support platform 51, and the longitudinal end of the support platform 51 near the guide assembly 3 is provided with a material stop frame 52, and the middle of the support platform 51 is provided with a roller assembly 7. The anti-deviation control system 1 includes a controller 11, a photoelectric sensor 12 provided at the other longitudinal end of the support platform 51, a first pressure sensor 13 and a second pressure sensor 14 provided on both longitudinal sides of the support platform 51 for detecting base paper, a third pressure sensor 15 provided on the material blocking rack 52, an angle sensor 16 provided on the roller assembly 7 for detecting the roller angle, a first position sensor 17 for detecting the height position of the base paper, a second position sensor 18 for detecting the position of the central axis of the paper shaft, and a third position sensor 19 for detecting the center position of the shaft pulling assembly 4. The photoelectric sensor 12, the first pressure sensor 13, the second pressure sensor 14, the third pressure sensor 15, the angle sensor 16, the first position sensor 17, the second position sensor 18, and the third position sensor 19 are electrically connected to the input end of the controller 11 respectively, and the shaft pulling assembly 4, the lifting mechanism 21, the roller assembly 7, the correction mechanism 5, the first linear drive device 25, the second linear drive device 26, and the third linear drive device 6 are electrically connected to the output end of the controller 11 respectively.

[0028] The control method of the anti-slip control system is:

[0029] 1) A base paper roll is placed on the unloading assembly 2. The controller 11 controls the first linear drive device 25 and the second linear drive device 26 to drive the first flap 23 and the second flap 24 to clamp toward each other and to control the lifting mechanism 21 to move upward and downward. At the same time, the second position sensor 18 detects the center axis position of the paper shaft and the third position sensor 19 detects the center position of the pull-shaft assembly 4. When the center axis position of the paper shaft corresponds to the center position of the pull-shaft assembly 4, the first linear drive device 25, the second linear drive device 26, and the lifting mechanism 21 stop operating.

[0030] 2) The controller 11 controls the pull-out shaft assembly 4 to clamp one end of the axis of the paper shaft and pull it out at a uniform speed. At the same time, the first pressure sensor 13 and the second pressure sensor 14 detect the pressure values ​​A1 and A2 at the longitudinal ends of the base paper roll, the third pressure sensor 15 detects the pressure value A3 of the material blocking rack 52, the photoelectric sensor 12 detects the placement position of the base paper roll and defines it as the initial position C0, the photometric sensor 12 detects the offset distance C1 of the base paper roll in the longitudinal direction, the angle sensor 16 detects the rotation angle of the roller and then calculates the offset distance C2 of the base paper roll in the longitudinal direction, and then the controller 11 controls the pull-out shaft assembly 4, the correction mechanism 5, the first linear drive device 25, the second linear drive device 26, and the third linear drive device 6 to perform correction processing, and the correction processing is as follows:

[0031] a. When A1>1.3A2, C1>5mm and A3>0 or A1>1.3A2, C1<-5mm and A3>0, stop the movement of the shaft pulling assembly 4, control the first flap 23 and the second flap 24 to move 2° to 5°, preferably 3°, through the controller 11, and move the roller assembly 7 in the opposite direction, driving the base paper roll to move toward the longitudinal end of the photoelectric sensor 12 to the C0 position, and start the movement of the shaft pulling assembly 4;

[0032] b. When 1.3A2 ≥ A1, 5mm > C1 > -5mm, and A3 = 0, the shaft assembly 4 continues to move, and the controller 11 controls the roller assembly 7 to move in the opposite direction. At the same time, when the controller 11 determines |C2| > |1.2C1|, the roller assembly 7 moves at a constant speed until it drives the base paper roll toward the longitudinal end of the photoelectric sensor 12 to the C0 position;

[0033] c. When 1.3A2 ≥ A1, 5mm > C1 > -5mm, and A3 = 0, the shaft assembly 4 continues to move, and the controller 11 controls the roller assembly 7 to move in the opposite direction. At the same time, the controller 11 determines that C2 > 0, and the roller assembly 7 accelerates. When |C2| > |1.2C1|, the controller 11 controls the first flap 23 and the second flap 24 to move 2° to 5°, preferably 3°, until the base paper roll is driven to move toward the longitudinal end of the photoelectric sensor 12 to the C0 position;

[0034] d. When 1.3A2 ≥ A1, 5mm> C1> -5mm and A3 = 0, the shaft pulling assembly 4 continues to move, and the controller 11 controls the roller assembly 7 to move in the opposite direction. At the same time, when the controller 11 determines that C2 = 0, the roller assembly 7 moves at a constant speed;

[0035] e. When 1.3A2 ≥ A1, 5mm > C1 > -5mm and A3 = 0, the shaft pulling assembly 4 continues to move, and the controller 11 controls the roller assembly 7 to move in the opposite direction. At the same time, when the controller 11 determines that C2 < 0, the roller assembly 7 decelerates until it drives the base paper roll to move toward the longitudinal end of the photoelectric sensor to the C0 position.

[0036] The present shaft puller's shaft pulling base paper anti-deviation device is connected to the controller 11 respectively through the photoelectric sensor 12, the first pressure sensor 13, the second pressure sensor 14, the third pressure sensor 15, the angle sensor 16, the first position sensor 17, the second position sensor 18, and the third position sensor 19, so as to control the correspondence between the center axis of the base paper roll and the center line of the shaft pulling assembly 4, facilitate the high-precision operation of the shaft pulling assembly 4, improve the shaft pulling effect, and can detect the force deviation and movement of the base paper roll in real time during the shaft pulling process, so as to analyze the uniform force condition of the base paper roll, and then realize micro-correction of the base paper roll by controlling the relative movement of the roller assembly 7 and the base paper roll, avoid damage to the base paper roll during the shaft pulling process, improve the shaft pulling quality, and through the control method of the deviation control system 1 mentioned above, avoid damage to the surface of the base paper roll caused by the roller assembly 7 during the correction process, and can achieve a better correction effect, improve the correction efficiency, and thus improve production efficiency.

[0037] In this embodiment, reference Figure 3 As shown, the lifting mechanism 21 includes a base 211, two groups of lifting components arranged on both sides of the base 211, a connecting shaft 212 connecting the two lifting components, a swing arm 213 arranged on the connecting shaft 212, and a fourth linear drive device 214. The two groups of lifting components are respectively connected to the base 211 and the mounting seat 22, the two ends of the fourth linear drive device 214 are respectively connected to the base 211 and the mounting seat 22, and the middle part of the fourth linear drive device 214 is hinged to the free end of the swing arm 213. The lifting component includes a first connecting rod 215 and a second connecting rod 216 hinged to each other in the middle, and is arranged at the base 211. A guide groove 217 is provided on the upper surface and located on one longitudinal side, and a guide rail 218 is provided on the lower surface of the mounting seat 22 and corresponding to the guide groove 217. The axial ends of the connecting shaft 212 are hinged to the hinges of the first connecting rod 215 and the second connecting rod 216 of the lifting assembly. One end of the first connecting rod 215 is hinged to the other longitudinal side of the base 211, and the other end of the first connecting rod 215 is provided with a guide wheel 219 that cooperates with the guide rail 218. One end of the second connecting rod 216 is hinged to the other longitudinal side of the mounting seat 22, and the other end of the second connecting rod 216 is provided with a slider 220 that cooperates with the guide groove 217.

[0038] The swing arm 213 is driven to swing by the fourth linear drive device 214, thereby driving the connecting shaft 212 to rotate, and then driving the guide wheel 219 of the first connecting rod 215 to move along the guide rail 218 and the slider 220 of the second connecting rod 216 to move along the guide groove 217 in the same direction, so that the mounting seat 22 is lifted, thereby enabling the support platform 51 to be height-adjustable with high adjustment efficiency, and at the same time, the structural operation stability is good, so that the detection accuracy of the anti-deviation control system 1 is high, thereby improving the correction accuracy of the correction mechanism 5.

[0039] refer to Figure 5 、 Figure 6 and Figure 7 As shown, the correcting mechanism 5 includes a correcting slide rail 53 provided on the supporting platform 51, a correcting slider 54 provided on the correcting slide rail 53, a correcting seat 55 provided on the correcting slider 54, a slot 56 provided on the longitudinal side of the supporting platform 51, a pull rod 57 connected to the correcting slider 54, and a locking mechanism 8 provided on the correcting slider 54 for limiting the movement of the correcting slider 54. The slots 56 are distributed along the longitudinal direction, and the material stopping frame 52 is provided at one longitudinal end of the correcting seat 55. The correcting seat 55 is pulled by the pull rod 57, thereby driving the material stopping frame 52 to slide along the slot 56.

[0040] The correction seat 55 is provided with four threaded holes 56 distributed in a matrix, and the material stop frame 52 is provided with a strip groove 57. Each of the strip grooves 57 is distributed along the vertical direction. The material stop frame 52 is locked by bolts cooperating with the strip grooves 57 and the threaded holes 56, and the height of the material stop frame 52 can be adjusted.

[0041] The locking mechanism 8 comprises a positioning hole 81 provided on the correcting slide rail 53, a mounting slot 82 provided on the correcting slider 54, a positioning rod 83 and a spring 84 provided in the mounting slot 82, a pull rope 85 connected to the positioning rod 83 at one end, a locking seat 86 fixed to the free end of the pull rod 57, and a driving rod 87 hinged to the locking seat 86. When in use, by pinching the driving rod 87 and the pull rod 57 towards each other, the positioning rod 83 is driven by the pull rope 85 to squeeze the spring 84 outward, so that the positioning rod 83 is disengaged from the positioning hole 81, and the material stopper 52 is driven to move by pulling the pull rod 57, thereby realizing the manual support platform 51. The longitudinal position adjustment of the base paper roll is realized after the adjustment is completed, and the material stopper 52 is reset, and the positioning hole 81 cooperates with the positioning rod 83 to lock the material stopper 52. Such a design makes the manual adjustment and automatic adjustment coordinated to ensure the reliability of the operation of the correcting mechanism 5.

[0042] The roller assembly 7 includes a servo motor 71, a connecting seat 72, a rotating shaft 73 rotatably provided on the connecting seat 72, a roller 74 fixed on the rotating shaft 73, a rubber sleeve 75 sleeved on the outer surface of the roller 74, and an electromagnetic clutch 76 connecting the servo motor 71 and the rotating shaft 73. The roller 74 is 3mm to 5mm higher than the supporting surface of the support platform 51, preferably 3mm. The angle sensor 16 is provided on the rotating shaft 73, thereby being able to better contact with the base paper roll and be embedded in the base paper roll, thereby improving adhesion, efficiently driving the base paper roll to move, and improving the correction effect.

[0043] The electromagnetic clutch 76 includes a housing 761, a first rotating shaft 762 and a second rotating shaft 763 rotatably arranged on the housing 761, a first disk 764 fixed on the first rotating shaft 762, a first ratchet 765 arranged on the periphery of the first disk 764, an electromagnet 766 arranged in the middle of the first disk 764, a second disk 767 sleeved on the second rotating shaft 763, a second ratchet 768 arranged on the periphery of the second disk 767, a magnet 769 arranged in the middle of the second disk 767, and a clutch spring 770 arranged between the first disk 764 and the second disk 767. The second rotating shaft 763 is provided with a clamping strip 771 distributed along its axial direction, and the second disk 767 is provided with a The card slot cooperates with the card strip 771, the servo motor 71 is connected to the first rotating shaft 762, and the rotating shaft 73 is connected to the second rotating shaft 763. The electromagnet 766 is energized by the controller 11. Under the cooperation of the electromagnet 766 and the magnet 769, the first disk 764 and the second disk 767 squeeze the clutch spring 770 toward each other to move, thereby making the first ratchet 765 and the second ratchet 768 engage, and the servo motor 71 drives the rotating shaft 73 to rotate. When the electromagnet 766 is powered off, the first ratchet 765 and the second ratchet 768 are separated under the action of the clutch spring 770, and the rotating shaft 73 is driven to rotate under the contact between the roller 74 and the base paper roll, thereby detecting the moving distance of the base paper roll.

[0044] A pressing force adjustment assembly 9 is provided between the roller assembly 7 and the support platform 51. The pressing force adjustment assembly 9 includes an adjustment seat 91 provided on the bottom surface of the support platform 51, a guide column 92 provided on the adjustment seat 91 along the vertical direction, a guide sleeve 93 provided on the connecting seat 72, an adjustment rod 94 threadedly connected to the lower part of the adjustment seat 91, a support plate 95 rotatably provided on the upper end of the adjustment rod 94, a rod body 96 vertically provided on the upper surface of the support plate 95, and a compression spring 97 sleeved on the rod body 96. The two ends of the compression spring 97 respectively abut against the support plate 95 and the connecting seat 72. By rotating the adjusting rod 94, the distance between the support plate 95 and the connecting seat 72 is adjusted, thereby increasing the compression stroke of the compression spring 97, so that the extrusion force of the roller on the base paper roll changes, thereby adjusting the friction between the roller 74 and the base paper roll, and can use different styles of base paper roll correction adjustment.

[0045] Although the present invention has been particularly shown and described in conjunction with preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made to the present invention without departing from the spirit and scope of the invention as defined in the appended claims, and all such changes are within the scope of protection of the present invention.

Claims

1. A device for preventing base paper from deviating when pulling a shaft, characterized by: The lifting mechanism is a lifting mechanism that is provided on the frame, and the lifting mechanism is a lifting mechanism that is provided on the lifting mechanism, and the lifting mechanism is a lifting mechanism that is provided on the lifting mechanism, and the lifting mechanism is a lifting mechanism that is provided on the lifting mechanism, wherein the lifting mechanism is a lifting mechanism that is provided on the lifting mechanism, and the lifting mechanism is a lifting mechanism that is provided on the lifting mechanism. The lifting mechanism is a lifting mechanism that is provided on the lifting mechanism, and the lifting mechanism is a lifting mechanism that is provided on the lifting mechanism. The lifting mechanism is a lifting mechanism that is provided on the lifting mechanism, and the lifting mechanism is a lifting mechanism that is provided on the lifting mechanism. The lifting mechanism is a lifting mechanism that is provided on the lifting mechanism, and the lifting mechanism is a lifting mechanism that is provided on the lifting mechanism. The anti-deviation control system includes a controller, a photoelectric sensor provided at the other longitudinal end of the support platform, a first pressure sensor and a second pressure sensor provided at both longitudinal sides of the support platform for detecting base paper, a third pressure sensor provided on the material stopper, an angle sensor provided on the roller assembly for detecting the roller angle, a first position sensor for detecting the height position of the base paper, a second position sensor for detecting the position of the center axis of the paper shaft, and a third position sensor for detecting the center position of the shaft pulling assembly; The correcting mechanism includes a correcting slide rail provided on the supporting platform, a correcting slider provided on the correcting slide rail, a correcting seat provided on the correcting slider, a slot provided on a longitudinal side of the supporting platform, a pull rod connected to the correcting slider, and a locking mechanism provided on the correcting slider for limiting the movement of the correcting slider, wherein the slots are distributed along the longitudinal direction, the material stopper is provided at one longitudinal end of the correcting seat, and the correcting seat is pulled by the pull rod, thereby driving the material stopper to slide along the slot; The deviation correction seat is provided with four threaded holes distributed in a matrix, and the material blocking frame is provided with strip grooves, each of which is distributed along the vertical direction. The material blocking frame is locked by bolts cooperating with the strip grooves and threaded holes.

2. The device for preventing the base paper from deviating when pulling a shaft according to claim 1, characterized in that: The photoelectric sensor, the first pressure sensor, the second pressure sensor, the third pressure sensor, the angle sensor, the first position sensor, the second position sensor, and the third position sensor are electrically connected to the input end of the controller respectively, and the shaft pulling assembly, the lifting mechanism, the roller assembly, the correction mechanism, the first linear drive device, the second linear drive device, and the third linear drive device are electrically connected to the output end of the controller respectively.

3. The device for preventing the base paper from deviating when pulling a shaft according to claim 2, characterized in that: The lifting mechanism comprises a base, two sets of lifting assemblies arranged on both sides of the base, a connecting shaft connecting the two lifting assemblies, a swing arm arranged on the connecting shaft and a fourth linear drive device, the two groups of lifting assemblies are respectively connected to the base and the mounting seat, the two ends of the fourth linear drive device are respectively connected to the base and the mounting seat, and the middle of the fourth linear drive device is hinged to the free end of the swing arm, the lifting assembly comprises a first connecting rod and a second connecting rod hinged to each other in the middle, a guide groove provided on the upper surface of the base and located on one longitudinal side, a guide rail provided on the lower surface of the mounting seat and corresponding to the guide groove, the axial ends of the connecting shaft are hinged at the hinges of the first connecting rod and the second connecting rod of the lifting assembly, one end of the first connecting rod is hinged to the other longitudinal side of the base, the other end of the first connecting rod is provided with a guide wheel cooperating with the guide rail, one end of the second connecting rod is hinged to the other longitudinal side of the mounting seat, and the other end of the second connecting rod is provided with a slider cooperating with the guide groove.

4. The device for preventing base paper from deviating when pulling a shaft according to claim 2 or 3, characterized in that: The locking mechanism includes a positioning hole provided on the correction slide rail, a mounting groove provided on the correction slider, a positioning rod and a spring provided in the mounting groove, a pull rope connected to the positioning rod at one end, a locking seat fixed on the free end of the pull rod, and a shift rod hinged to the locking seat. The other end of the pull rope is connected to the shift rod. When in use, by pinching the shift rod and the pull rod toward each other, the positioning rod is driven by the pull rope to squeeze the spring to move outward, so that the positioning rod is disengaged from the positioning hole.

5. The device for preventing the base paper from deviating when pulling a shaft according to claim 4 is characterized in that: The roller assembly includes a servo motor, a connecting seat, a rotating shaft rotatably arranged on the connecting seat, a roller fixed on the rotating shaft, a rubber sleeve mounted on the outer surface of the roller, and an electromagnetic clutch connecting the servo motor and the rotating shaft. The roller is 3mm to 5mm higher than the supporting surface of the support platform, and the angle sensor is arranged on the rotating shaft.

6. The device for preventing the base paper from deviating when pulling a shaft according to claim 5, characterized in that: The electromagnetic clutch includes a housing, a first rotating shaft and a second rotating shaft rotatably arranged on the housing, a first disk body fixed on the first rotating shaft, a first ratchet arranged on the periphery of the first disk body, an electromagnet arranged in the middle of the first disk body, a second disk body sleeved on the second rotating shaft, a second ratchet arranged on the periphery of the second disk body, a magnet arranged in the middle of the second disk body, and a clutch spring arranged between the first disk body and the second disk body. The second rotating shaft is provided with a clamping strip distributed along its axial direction, and the second disk body is provided with a clamping groove matching the clamping strip. The servo motor is connected to the first rotating shaft, and the rotating shaft is connected to the second rotating shaft.

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