A paper roll stable conveying system

Abstract

The application discloses a paper roll stable conveying system, which comprises a paper roll supplying device, a paper roll pulling-out device and a paper roll turning device; the paper roll supplying device is used for mounting and supplying the paper roll, the paper roll is fixed on a mounting tray through an air inflation shaft, and the air inflation shaft is in transmission connection with a magnetic powder motor; the paper roll pulling-out device is used for pulling out the paper roll, and the free end of the paper roll is pulled out through a paper guide roller driven by a servo motor; the paper roll turning device is used for adjusting the conveying direction of the paper tape pulled out by the paper roll pulling-out device from horizontal to vertical; the paper roll turning device comprises at least two guide rollers, and the inclination angle and vertical height of the guide rollers are adjusted according to the offset size of the side edge sealing of the gypsum board; through the feedback adjustment of the visual sensor on the paper roll turning device, the upstream transmission posture of the sealing tape can be timely adjusted according to the sealing condition of the downstream, the sealing tape can be aligned with the side edge of the gypsum board, and the stability of the paper tape conveying of the sealing system of the gypsum board production is improved.

Description

Technical Field

[0001] This invention relates to the field of gypsum board edge banding equipment technology, specifically to a stable paper roll conveying system. Background Technology

[0002] After the gypsum board produced on the gypsum board production line is sawn, it is necessary to use edge banding tape and tear tape to seal the ends of two boards together for packaging and stacking. The quality of the edge banding directly affects the appearance quality of the board and its ease of use. If the tear tape and edge banding tape do not match well and are not sealed tightly, it will affect the two boards to be torn apart and used, which will seriously affect the quality of the board.

[0003] In existing technology, the edge banding tape and tear tape are directly mounted on a nylon pallet and move with the gypsum board, operating without their own power. The gypsum board moves at varying speeds, the paper roll conveying is unstable, and the edge banding effect is not ideal, with vertical deviations. As the size of the paper roll changes, its rotation speed and inertia significantly affect the paper roll conveying capacity, leading to poor edge banding. This severely impacts the appearance quality of the boards and customer usability. Boards that cannot be sealed require manual edge banding, resulting in significant manpower waste. In severe cases, the cutter may fail to cut the edge banding tape, causing board misalignment on the gypsum board conveyor platform, equipment downtime, and the need for manual processing of defective boards, severely hindering production efficiency.

[0004] Therefore, there is a need to provide a stable paper roll conveying system to solve the problem in the existing technology that the conveying posture of the upstream edge banding tape cannot be adjusted in time according to the edge banding situation of the downstream gypsum board, resulting in the difficulty of centering and aligning the sides of the edge banding tape and the gypsum board. Summary of the Invention

[0005] The purpose of this invention is to provide a stable paper roll conveying system to solve the technical problems mentioned in the background section.

[0006] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution:

[0007] This invention provides a stable paper roll conveying system, comprising: a paper roll supply device for installing and supplying paper rolls, the paper rolls being fixed on a mounting tray via an air shaft, the air shaft being driven and connected to a magnetic powder motor; a paper roll pull-out device for pulling out the paper rolls, the free end of the paper rolls being pulled out via a paper guide roller driven by a servo motor; and a paper roll steering device for adjusting the conveying direction of the paper strip pulled out by the paper roll pull-out device from horizontal to vertical; wherein the paper roll steering device includes at least two guide rollers inclined along the paper strip conveying path, the inclination angle and vertical height of the guide rollers being adjusted according to the offset dimension after the side edge of the gypsum board is sealed; and a control mechanism for the guide rollers is activated by monitoring the offset dimension after the side edge of the gypsum board is sealed using a visual sensor to achieve the adjustment action, so as to center and align the paper strip with the side edge of the gypsum board by adjusting the transmission posture of the paper strip on the guide rollers.

[0008] Furthermore, the paper roll turning device includes a lifting block, and a guide roller is mounted on the lifting block; a hydraulic lifting rod is provided below the lifting block to drive its lifting and lowering; a vertical rotating rod is provided on the side of the lifting block, and the guide roller is vertically connected to the rotating rod, and the rotation of the rotating rod is driven by a power motor mounted on the lifting block; the paper strip is sequentially tensioned on the guide roller along an S-shaped path.

[0009] Furthermore, the paper roll turning device includes an upstream roller located upstream of the guide roller and a downstream roller located downstream of the guide roller; wherein, the upstream roller is connected to a horizontal rotating shaft, the downstream roller is connected to a vertical rotating shaft, and the paper strip is sequentially tensioned on the upstream roller, the guide roller, and the downstream roller.

[0010] Furthermore, a laser sensor is installed on one side of the mounting tray to monitor the diameter of the paper roll. The laser sensor outputs the change in the diameter of the paper roll as an electrical signal to provide feedback and adjust the voltage of the magnetic powder motor in order to control the tension at the paper roll exit end.

[0011] Furthermore, the output power of the servo motor pulling out the paper tape is adjusted based on the gypsum board conveying speed measured by the measuring wheel.

[0012] Furthermore, a paper belt conveying device is provided downstream of the paper roll turning device. The paper belt conveying device includes a first roller and a second roller, and the paper belt is tensioned sequentially on the first roller and the second roller.

[0013] Furthermore, a limiting plate is provided between the first roller and the second roller to limit the conveying height of the paper tape. The limiting plate has a through concave plate structure surrounding both sides of the paper tape.

[0014] Furthermore, a guide plate is provided downstream of the second roller. The guide plate is used to bend the paper strip into a U-shape that can fit against the side of the gypsum board and fit against the side of the gypsum board. The guide plate has a U-shaped bent plate structure, and the two ends of the guide plate have different opening sizes, forming a large diameter end and a small diameter end. The guide plate is inclined to the side of the gypsum board along the conveying path of the paper strip. The groove width of the guide plate gradually decreases along the conveying path of the paper strip.

[0015] Furthermore, the small-diameter end of the guide plate is equipped with a vertically axially connected roller to roll against the side of the gypsum board.

[0016] Furthermore, the guide plate is composed of a segmented hinged guide plate one and a guide plate two; wherein, the outer side walls of the guide plate one and the guide plate two are provided with support springs to bring the adjacent ends of the guide plate one and the guide plate two closer to each other; the guide plate one can overlap with the side of the gypsum board.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] This invention utilizes a visual sensor to provide feedback adjustment to the paper roll turning device. With the main controller acting as the signal conversion medium, the visual sensor monitors the edge sealing effect of the gypsum board while simultaneously feeding back information to the control mechanism of the guide roller. The main controller adjusts the tilt angle and vertical height of the guide roller, thereby enabling the upstream conveying posture of the paper strip to be adjusted in a timely manner according to the downstream edge sealing situation. This ensures that the paper strip is aligned with the side of the gypsum board, improving the stability of the paper strip conveying in the gypsum board production edge sealing system. Attached Figure Description

[0019] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0020] Figure 1 A simplified structural diagram of a paper roll stable conveying system provided by the present invention;

[0021] Figure 2 A simplified structural diagram of a length measuring wheel and a vision sensor for edge sealing detection during the transfer of gypsum board, provided in one embodiment of the present invention;

[0022] Figure 3 for Figure 1 Structural diagram of the paper roll turning device;

[0023] Figure 4 for Figure 1 Schematic diagram of the transmission structure of the middle guide roller;

[0024] Figure 5 for Figure 1 Schematic diagram of the paper belt conveyor;

[0025] Figure 6 for Figure 5 Enlarged view of section I;

[0026] Figure 7 for Figure 6 Front view of the middle limit plate;

[0027] Figure 8 Figure 5 Schematic diagram of the middle guide plate;

[0028] Figure 9 for Figure 8 Top view;

[0029] Figure 10 for Figure 8 The front view;

[0030] Figure 11 A schematic diagram of the guide plate in another embodiment of the present invention.

[0031] The labels in the diagram represent the following:

[0032] 1. Paper roll supply device; 11. Air shaft; 12. Mounting tray; 13. Laser sensor; 2. Paper roll pull-out device; 21. Paper guide roller; 3. Paper roll turning device; 31. Guide roller; 32. Vision sensor; 33. Lifting block; 331. Hydraulic lifting rod; 34. Rotating rod; 35. Upstream roller; 36. Downstream roller; 4. Paper belt conveyor device; 41. First roller; 42. Second roller; 43. Limiting plate; 44. Guide plate; 441. Guide plate one; 442. Guide plate two; 45. Roller; 46. Support spring; 5. Length measuring wheel. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] like Figure 1-2 As shown, the present invention provides a paper roll stable conveying system, comprising:

[0035] Paper roll supply device 1 is used to install and supply paper rolls, which are fixed on mounting tray 12 by air shaft 11 and drive shaft 11 connected to magnetic powder motor.

[0036] Paper roll pull-out device 2 is used to pull out the paper roll. The free end of the paper roll is pulled out by the paper guide roller 21 driven by the servo motor.

[0037] Paper roll turning device 3 is used to adjust the conveying direction of the paper strip pulled out by paper roll pull-out device 2 from horizontal to vertical.

[0038] The paper roll turning device 3 includes at least two guide rollers 31 that are inclined along the paper belt conveying path. The inclination angle and vertical height of the guide rollers 31 are adjusted according to the offset size of the side edge of the gypsum board after sealing. The control mechanism of the guide rollers 31 is monitored by the vision sensor 32 and fed back to the control mechanism of the guide rollers 31 to realize the adjustment action, so as to adjust the transmission posture of the paper belt on the guide rollers 31 to make it centered and aligned with the side edge of the gypsum board.

[0039] This invention aims to utilize the feedback adjustment function of the vision sensor 32 on the paper roll turning device 3, with the main controller as the signal conversion medium. The vision sensor 32 monitors the edge sealing effect of the gypsum board while simultaneously feeding back information to the control mechanism of the guide roller 31. The main controller adjusts the tilt angle and vertical height of the guide roller 31, allowing the upstream conveying posture of the paper strip to be adjusted promptly according to the downstream edge sealing condition. This ensures the paper strip is aligned centered with the side of the gypsum board, improving the stability of the paper strip conveying in the gypsum board production edge sealing system. It also avoids the problem of numerous defective boards appearing due to poor edge sealing when manual inspection reveals edge sealing defects and the guide roller 31 is manually adjusted. This improves edge sealing quality, reduces equipment malfunction rate, and enhances product quality and production efficiency. Specifically, the paper roll is fixed on the mounting tray 12 by the air shaft 11. The free end of the paper roll is pulled out by the paper guide roller 21 driven by the servo motor. An auxiliary roller for paper belt to pass around can be provided between the paper guide roller 21 and the paper roll to help the paper belt to be tensioned during the conveying process. The paper belt then enters the downstream paper roll turning device 3, which controls and adjusts the conveying height of the paper belt by at least two sets of adjustable angle and height guide rollers 31. The paper belt completes the 90° reversal action without affecting the normal transmission of the paper belt, thereby ensuring that the paper belt is centered and aligned with the side center of the gypsum board.

[0040] To clearly illustrate the operation of the paper roll turning device 3 in this invention, specific embodiments of the paper roll turning device 3 are provided below.

[0041] In one embodiment of the present invention, such as Figure 3-4 As shown, the paper roll turning device 3 includes a lifting block 33, and a guide roller 31 is disposed on the lifting block 33;

[0042] The lifting block 33 has a hydraulic lifting rod 331 below it that drives it to rise and fall; the lifting block 33 has a vertical rotating rod 34 on its side, and the guide roller 31 is vertically connected to the rotating rod 34. The rotation of the rotating rod 34 is driven by a power motor on the lifting block 33; the paper tape is tensioned on the guide roller 31 along the S-shaped path.

[0043] In this embodiment, the hydraulic base of the hydraulic lifting rod 331 is mounted on a device base, and the power motor is fixed on the lifting block 33 and moves up and down accordingly. This allows the guide roller 31 to rotate around one end, changing the tilt angle of the paper tape. Simultaneously, the hydraulic lifting rod 331 can drive the lifting block 33 to adjust the height of the guide roller 31 to accommodate the adjustment of the paper tape tilt angle, thereby changing the transmission posture of the paper tape on the guide roller 31. For example, please continue reading... Figure 3As shown, when the upstream guide roller 31 is above the paper strip, the paper strip is tensioned on top of the guide roller 31 from below. Since the paper strip is guided by the guide roller 31 from the horizontal direction and gradually tilts towards the vertical direction, the horizontal direction is used as a reference direction. When the guide roller 31 continues to increase its tilt angle relative to the horizontal plane, as the guide roller 31 gradually approaches the vertical state, the pressure it generates relative to the paper strip decreases, which may cause the paper strip to slide upward along the guide roller 31. At this time, in order to avoid the problem of the paper strip not being able to be centered under the action of the guide roller 31, it is necessary to use the lifting action of the lifting block 33 to move the guide roller 31 upward by a certain distance, and vice versa, so as to adapt to the adjustment of the paper strip transmission posture, thereby adapting to the actual edge sealing situation in the gypsum board transmission process and avoiding the problem of the paper strip shifting up and down.

[0044] To ensure a more stable turning process for the paper tape turning device 3, please refer to [link / reference needed]. Figure 1 As shown, in the preferred embodiment provided by the present invention based on the above embodiments, the paper roll turning device 3 includes an upstream roller 35 disposed upstream of the guide roller 31 and a downstream roller 36 disposed downstream of the guide roller 31.

[0045] The upstream roller 35 is connected to the horizontal rotating shaft, and the downstream roller 36 is connected to the vertical rotating shaft. The paper strip is tensioned sequentially on the upstream roller 35, the guide roller 31, and the downstream roller 36.

[0046] In this embodiment, by setting an upstream roller 35 and a downstream roller 36 on the upstream and downstream sides of the guide roller 31 respectively, the paper tape to be turned is tensioned sequentially on multiple rollers with different inclination angles. This can improve the stability of the paper tape during the turning process, avoid the paper tape bending and creases during the turning process, and even prevent the paper tape from tearing due to excessive bending angle.

[0047] Because the diameter of the paper roll changes continuously during use, different diameter paper rolls require different tensions from the magnetic powder motor during the paper output process. Therefore, to avoid slack in the paper belt during transmission due to tension mismatch at the paper roll output end, please continue reading... Figure 1 As shown, in the preferred embodiment provided by the present invention based on the above embodiments, a laser sensor 13 is provided on one side of the mounting tray 12 to monitor the paper roll diameter. The laser sensor 13 outputs the change in paper roll diameter as an electrical signal to feed back and adjust the voltage of the magnetic powder motor in order to control the tension at the paper roll exit end.

[0048] In this embodiment, the laser sensor 13 automatically monitors the paper roll size and transmits the signal to the main controller, so that the main controller can automatically adjust the output voltage of the magnetic powder motor according to the paper roll diameter. The output power of the magnetic powder motor controls the tension when the paper roll is pulled out, so that the tension at the paper roll exit end can change according to the paper roll diameter, avoiding the problem of the paper belt being too loose during transmission due to the change of the paper roll diameter itself.

[0049] To enable the paper tape to follow the gypsum board conveyor speed during output and achieve real-time adaptive adjustment during the edge sealing process, please refer to [link to relevant documentation]. Figure 2 As shown, based on the above embodiments, the present invention also generally adjusts the output power of the servo motor pulling out the paper tape according to the gypsum board conveying speed measured by the measuring wheel 5.

[0050] To ensure the paper tape remains vertical after reversing and is conveyed to the side of the gypsum board for edge sealing, such as... Figure 5 As shown, in the preferred embodiment provided by the present invention based on the above embodiments, a paper belt conveying device 4 is provided downstream of the paper roll turning device 3. The paper belt conveying device 4 includes a first roller 41 and a second roller 42, and the paper belt is sequentially tensioned on the first roller 41 and the second roller 42.

[0051] To ensure the paper tape maintains a certain conveying height during vertical transport and matches the height of the gypsum board conveying platform, such as... Figure 5-7 As shown, in the preferred embodiment provided by the present invention based on the above embodiments, a limiting plate 43 is provided between the first roller 41 and the second roller 42 to limit the conveying height of the paper tape. The limiting plate 43 has a through concave plate structure surrounding both sides of the paper tape, and the setting height of the limiting plate 43 can be adjusted according to the height of the gypsum board conveying platform.

[0052] To ensure the paper tape adheres stably to the sides of the plasterboard and improves the edge sealing effect, such as... Figure 8-9 As shown, in the preferred embodiment provided by the present invention based on the above embodiments, a guide plate 44 is provided downstream of the second roller 42. The guide plate 44 is used to bend the paper strip into a U-shape that can fit against the side of the gypsum board and fit against the side of the gypsum board.

[0053] The guide plate 44 has a U-shaped curved plate structure, and the two ends of the guide plate 44 have different opening sizes, forming a large diameter end and a small diameter end; the guide plate 44 is inclined to the side of the gypsum board along the conveying path of the paper tape; the groove width of the guide plate 44 gradually decreases along the conveying path of the paper tape.

[0054] More specifically, in order to reduce the friction when the small-diameter end of the guide plate 44 contacts the side of the gypsum board, i.e., the paper tape, such as... Figure 10As shown, in the preferred embodiment provided by the present invention based on the above embodiments, the small diameter end of the guide plate 44 is provided with a vertically axially connected roller 45 to roll against the side of the gypsum board.

[0055] In this embodiment, the roller 45 changes the contact between the guide plate 44 and the paper tape from sliding friction to rolling friction. The rolling action of the roller 45 allows the paper tape to gradually adhere to the side of the gypsum board, thereby improving the sealing effect.

[0056] More specifically, such as Figure 11 As shown, in the preferred embodiment provided by the present invention based on the above embodiments, the guide plate 44 is composed of a segmented hinged guide plate 441 and a guide plate 442.

[0057] Among them, the outer walls of the first guide plate 441 and the second guide plate 442 are provided with support springs 46 so that the near ends of the first guide plate 441 and the second guide plate 442 are close to each other; the first guide plate 441 can overlap with the side of the gypsum board.

[0058] In this embodiment, by setting the guide plate 441, its small diameter end can separate from the end of the guide plate 442 when it comes into contact with the side of the gypsum board, so that it can be parallel to the side of the gypsum board, which is beneficial to increase the limiting distance of the paper tape and thus improve the sealing effect.

[0059] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A paper roll stable conveying system, characterized in that, include: A paper roll supply device (1) is used to install and supply paper rolls, which are fixed on a mounting tray (12) by an air shaft (11) and the air shaft (11) is driven to a magnetic powder motor. Paper roll pull-out device (2), which is used to pull out the paper roll, the free end of the paper roll is pulled out by the paper guide roller (21) driven by the servo motor; Paper roll turning device (3), which is used to adjust the conveying direction of the paper strip pulled out by the paper roll pulling device (2) from horizontal to vertical; The paper roll turning device (3) includes at least two guide rollers (31) that are inclined along the paper belt conveying path. The inclination angle and vertical height of the guide rollers (31) are adjusted according to the offset size after the side edge of the gypsum board is sealed. The offset dimension of the gypsum board after the side edge is sealed is monitored by the visual sensor (32) and fed back to the control mechanism of the guide roller (31) to realize the adjustment action, so as to adjust the transmission posture of the paper tape on the guide roller (31) to make it centered and aligned with the side edge of the gypsum board; The paper roll turning device (3) includes a lifting block (33), and the guide roller (31) is disposed on the lifting block (33); The lower part of the lifting block (33) is provided with a hydraulic lifting rod (331) that drives it to rise and fall. The lifting block (33) has a vertical rotating rod (34) on its side. The guide roller (31) is vertically connected to the rotating rod (34). The rotation of the rotating rod (34) is driven by a power motor installed on the lifting block (33). The paper tape is sequentially tensioned onto the guide roller (31) along an S-shaped path; The paper roll turning device (3) includes an upstream roller (35) located upstream of the guide roller (31) and a downstream roller (36) located downstream of the guide roller (31). The upstream roller (35) is connected to a horizontal rotating shaft, and the downstream roller (36) is connected to a vertical rotating shaft. The paper strip is sequentially tensioned on the upstream roller (35), the guide roller (31), and the downstream roller (36). Downstream of the paper roll turning device (3) is a paper belt conveying device (4), which includes a first roller (41) and a second roller (42), and the paper belt is tensioned sequentially on the first roller (41) and the second roller (42). A limiting plate (43) is provided between the first roller (41) and the second roller (42) to limit the conveying height of the paper tape. The limiting plate (43) has a through concave plate structure surrounding both sides of the paper tape. The second roller (42) is provided with a guide plate (44) downstream, the guide plate (44) is used to bend the paper strip into a U-shape that can fit against the side of the gypsum board and fit against the side of the gypsum board; The guide plate (44) has a U-shaped curved plate structure, and the two ends of the guide plate (44) have different opening sizes, forming a large diameter end and a small diameter end; The guide plate (44) is inclined to the side of the gypsum board along the conveying path of the paper tape; The groove width of the guide plate (44) gradually decreases along the conveying path of the paper tape; The guide plate (44) has a vertically axially connected roller (45) at its small diameter end to roll against the side of the gypsum board. The guide plate (44) is composed of a segmented hinged guide plate one (441) and a guide plate two (442); Among them, the outer walls of the first guide plate (441) and the second guide plate (442) are provided with support springs (46) so that the near ends of the first guide plate (441) and the second guide plate (442) are close to each other; The guide plate (441) can overlap with the side of the gypsum board.

2. The paper roll stable conveying system according to claim 1, characterized in that, A laser sensor (13) is provided on one side of the mounting tray (12) to monitor the diameter of the paper roll. The laser sensor (13) outputs the change in the diameter of the paper roll as an electrical signal to provide feedback and adjust the voltage of the magnetic powder motor in order to control the tension at the paper roll exit end.

3. The paper roll stable conveying system according to claim 2, characterized in that, The output power of the servo motor pulling out the paper tape is adjusted based on the gypsum board conveying speed measured by the measuring wheel (5).

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