Automatic roll changing device and automatic roll changing method for online paper laying machine

Abstract

The invention provides an automatic roll changing device and an automatic roll changing method for an online paper laying machine, and belongs to the technical field of packaging. The technical problem that in the prior art, a roll changing device can only be bound with a paper laying mechanism is solved. The automatic roll changing device for the online paper laying machine comprises a rack and a position changing system, two belt type paper conveyors are arranged, negative pressure type conveying belts are arranged on the two sides of the belt type paper conveyors respectively, a paper hanging mechanical arm is further arranged, and the paper hanging mechanical arm is connected with a first paper picking device. The paper hanging mechanical arm can move the empty paper roll clamped by the first paper picking device from the paper picking station to abut against one of the belt type paper conveyors, a new paper picking device capable of adsorbing and fixing paper of a new paper roll is further arranged, and the new paper picking device is connected with a paper picking mechanical arm capable of moving the new paper picking device to enable the paper to abut against the other belt type paper conveyor. An automatic glue feeder capable of placing a bonding material and a bonding and cutting mechanism are further arranged. The multi-station roll changing device has the advantages of multi-station roll changing, automation, good stability and the like.

Description

Technical Field

[0001] The present invention belongs to the technical field of packaging, and relates to paper laying equipment, in particular to an automatic roll changing device and an automatic roll changing method for an online paper laying machine. Background Art

[0002] A paper laying machine is a mechanical device used to automatically lay paper or insulation materials. For machines operating for extended periods, a roll changer is often required to replace the paper roll and replenish the material. Prior art technology often requires machine downtime and manual intervention, significantly impacting the machine's efficiency. Furthermore, the roll changer is typically fixed to a single unit, requiring each paper laying machine to be equipped with one. This increases equipment procurement costs for factories and increases equipment idleness, resulting in waste. This has led to extensive research and various solutions.

[0003] For example, a Chinese patent document discloses a non-stop glass isolation paper laying machine [application number: CN202411056216.X], wherein a unwinding mechanism, a tensioning roller mechanism, and a laying mechanism with a paper cutting knife are installed on the frame, a glass conveying mechanism is provided below the frame, the unwinding mechanism includes a first unwinding station and a second unwinding station, a first paper reel is installed in the first unwinding station, a second paper reel is installed in the second unwinding station, and a mounting frame is fixedly installed on the frame and located below the unwinding mechanism. The present invention adopts the above structure: by setting two paper reel stations, the first unwinding station and the second unwinding station, the first paper reel and the second paper reel are placed correspondingly, when one of the paper reels is about to run out, the other paper reel is directly connected, thereby completing the paper roll switching, solving the current problem that when the paper on one paper roll is used up, the machine can only be stopped for replacement, and achieving the purpose of replacing paper rolls without stopping.

[0004] Although the above solution achieves the purpose of replacing paper rolls without stopping the machine, the roll changing device is still bound to the paper laying mechanism, which cannot solve the problem of equipment idleness and causes cost waste. Summary of the Invention

[0005] The purpose of the present invention is to address the above-mentioned problems and provide an automatic roll changing device for an online paper laying machine that can change rolls for multiple devices.

[0006] Another object of the present invention is to provide an automatic roll changing method for an online paper laying machine in response to the above-mentioned problem.

[0007] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: the automatic roll changing device for an online paper laying machine includes a frame, the frame is connected to a transposition system, the frame is provided with two symmetrically arranged belt paper conveyors, and negative pressure conveyor belts are respectively provided on both sides of the belt paper conveyor, the frame is also provided with a paper hanging mechanical arm, the paper hanging mechanical arm is connected to the first paper pickup, and the paper hanging mechanical arm can move the paper of the empty paper roll clamped by the first paper pickup from the paper picking station to rest against one of the belt paper conveyors, the frame is also provided with a new paper picker that can absorb and fix the paper of the new paper roll, the new paper picker is connected to the paper picking mechanical arm that can move the new paper picker to make the paper rest against another belt paper conveyor, the frame is also provided with an automatic glue feeder that can be used to place adhesive material on the paper on at least one belt paper conveyor, and a bonding and cutting mechanism is also provided between the two belt paper conveyors.

[0008] The combination of the paper-hanging arm and the first paper picker precisely grips the paper from the empty roll and moves it to the belt conveyor. The new paper picker, in conjunction with the paper-picking arm, absorbs and secures the top of the new roll and pulls it to another belt conveyor. The gluing and cutting mechanism located between the two belt conveyors then performs gluing and cutting, achieving automatic paper change. Furthermore, the transposition system allows the rack and the equipment on it to be moved to the roll-changing station on the paper laying machine, enabling roll change for multiple devices.

[0009] The cam is secured to the upper portion of the paper feeder and is secured to the upper portion of the paper feeder's upper portion with respect to the paper feeder's lower portion. The follower arm is connected to the paper pickup rack via a first elastic unit. When placed in close proximity to the negative pressure conveyor belt, the follower roller first contacts the belt surface and, under the action of the elastic unit, gradually compresses the fixed roller. The parallel arrangement and orbital design of the follower and fixed rollers allow them to automatically adjust their angles upon contact, ensuring perfect contact between the paper gripping surface and the belt surface, preventing paper shifting or wrinkling due to angular deviation.

[0010] In the above-mentioned automatic roll-changing device for an online paper laying machine, the new paper picker includes a paper picking active wheel and a paper picking driven wheel arranged on a new paper picking machine frame, a paper picking belt is sleeved between the paper picking active wheel and the paper picking driven wheel, a paper picking negative pressure assembly is provided between the paper picking belt and the paper picking driven wheel, a paper picking pressure wheel is provided between the paper picking active wheel and the new paper picking machine frame, a paper picking pressure wheel is provided on the paper picking pressure wheel, and a distance-adjusting drive unit capable of driving the paper picking pressure wheel to move radially along the paper picking active wheel is provided, an electrostatic device is also provided on one side of the paper picking belt, and the new paper picking machine frame is connected to a paper picking mechanical arm. The combined design of the paper picking negative pressure assembly and the electrostatic device can not only fix the paper head by negative pressure adsorption, but also utilize the electrostatic adsorption effect, providing a double guarantee to prevent paper from slipping or deflecting, thereby enhancing the reliability of the roll-changing process.

[0011] In the aforementioned automatic roll-changing device for an online paper laying machine, the paper-picking mechanical arm includes a paper-picking hinged seat disposed on a machine frame and located below another belt paper conveyor. The new-paper-picking frame is hinged to the hinged seat. A transposition drive is provided between the machine frame and the location of the new-paper-picking frame offset from the rotation center of the hinged seat, capable of driving the new-paper-picking frame to rotate about the rotation center of the hinged seat so that the paper on the driven wheel of the paper-picking frame abuts against the negative pressure conveyor belt. By driving the new-paper-picking frame to rotate about the hinged seat by the transposition drive, precise angular adjustment of the paper in three dimensions can be achieved, ensuring that the contact position between the paper head and the negative pressure conveyor belt is precisely controllable, thereby ensuring a stable connection between the paper head and the negative pressure conveyor belt.

[0012] In the above-mentioned automatic roll-changing device for an online paper laying machine, the paper picking negative pressure assembly includes a hollow shaft passing through the paper picking driven wheel, airtight bearings are provided at both ends of the hollow shaft and the paper picking driven wheel, a plurality of first negative pressure holes are distributed on the hollow shaft, an air cavity is provided between the paper picking driven wheel, the hollow shaft and the two airtight bearings, a plurality of second air holes are provided on the paper picking belt, and the paper picking driven wheel is provided with an air suction channel that enables the second air holes on the paper picking belt to have negative pressure suction. The first negative pressure holes on the hollow shaft cooperate with the air cavity of the paper picking driven wheel to evenly transfer the negative pressure to the second air holes on the belt surface. Moreover, by integrating the hollow shaft with the paper picking driven wheel, the negative pressure generating unit is directly built into the transmission component, without the need for an external additional adsorption device, which can significantly simplify the structure and save installation space.

[0013] In the aforementioned automatic roll-changing device for an online paper laying machine, the belt-type paper conveyor includes a main drive roller connected to a frame, the main drive roller being connected to a main drive roller driver. The ends of the main drive roller are connected to two auxiliary conveyor rollers via two negative pressure conveyor belts. A mounting area for a paper gluing and cutting mechanism is provided between the two auxiliary conveyor rollers, and the gluing and cutting mechanism is housed within the mounting area. The negative pressure conveyor belts at both ends apply negative pressure to the sides of the paper, effectively preventing lateral deviation or longitudinal slippage of the paper during conveyance, thereby ensuring stable paper transport.

[0014] In the above-mentioned automatic roll-changing device for an online paper laying machine, the bonding and cutting mechanism includes a cutting frame, which is provided with an active cutter and a knife roller having at least one stationary cutter. The active cutter and knife roller are respectively arranged in the bonding and cutting mechanism installation areas of two belt paper conveyors, and a vertical paper insertion gap is provided between the active cutter and the knife roller. The active cutter is arranged on a translation frame, and a translation drive unit is provided between the translation frame and the cutting frame. The translation frame is also provided with an active bonding top block located below the active cutter, and the cutting frame is also fixed with a stationary bonding top block located below the knife roller and capable of cooperating with the active bonding top block. The active cutter and the active bonding top block are both arranged on the translation frame, which can realize the simultaneous cutting and bonding of paper, thereby avoiding paper falling off due to untimely bonding.

[0015] In the aforementioned automatic roll-changing device for an online paper laying machine, the automatic glue feeder includes a glue roller bracket, a rotatable glue roller mounted on the glue roller bracket, a glue injection box disposed between the glue roller and the glue roller bracket, the glue injection box connected to the glue roller bracket via two glue injection box springs, the glue injection box connected to a glue brush via several hair permeation holes, the glue brush acting on the glue roller, the glue roller bracket connected to the glue feeder bracket via a YZ movable mechanism, and at least one pneumatic spring paper pressing roller disposed on one side of the glue roller. The glue injection box is connected to the glue feeder bracket via a spring, forming an elastic floating structure that automatically compensates for contact pressure fluctuations between the glue brush and the glue roller, thereby preventing uneven glue application or glue leakage caused by mechanical vibration or variations in paper thickness.

[0016] In the aforementioned automatic roll-changing device for an online paper laying machine, the transposition system includes a longitudinal and transverse track frame and a longitudinal and transverse diverter disposed at the intersection of the longitudinal and transverse track frames. The rail bodies of the longitudinal and transverse track frames are provided with first and second running wheels, the first running wheels being connected to a running wheel drive unit, and the first and second running wheels being disposed on a rotating base. A suspended circumferential rotating assembly is disposed between the rotating base and the frame. The longitudinal and transverse track frames enable planar movement, while the suspended circumferential rotating assembly provides rotational freedom, forming a complex motion pattern. This allows the frame to be moved to any position within the workshop and adjusted at any angle, adapting to multi-device collaborative production scenarios.

[0017] The automatic roll changing method for an online paper laying machine includes the automatic roll changing device of the paper laying machine as described above, and the specific steps are as follows: S1. By monitoring the paper roll status of multiple online paper laying machines, when an empty roll signal is detected, the automatic roll changing device is dispatched through the transposition system to move to the target device; S2. Adjust the direction of the frame so that the first paper pickup is facing the empty paper roll side and the new paper pickup is facing the new paper roll side; S3. The first paper pickup clamps the paper on the empty paper roll at the paper pickup station and pulls it to one of the belt paper conveyors. The new paper pickup device adsorbs and clamps the new paper roll paper head and pulls it to another belt paper conveyor through the paper pickup robot arm; S4. Two belt paper conveyors respectively pick up the paper from the empty paper roll and the paper head of the new paper roll, and move them to the pre-closing position to wait for glue; S5. The automatic glue feeder moves along the width of the paper in the area leading to the new paper roll and applies glue; S6. Close and glue the paper of the empty paper roll and the paper head of the new paper roll together, and simultaneously cut the excess paper head; S7. Complete the roll change, return to the standby area, and wait for the next scheduling instruction.

[0018] Compared with existing technologies, the advantages of this automatic roll-changing device and method for online paper laying machines are: 1. It can be moved and installed at any roll-changing station on the paper laying machine, reducing equipment idleness and improving economic benefits. 2. The entire roll-changing process requires no human intervention, achieving a high degree of automation. 3. The combination of multiple paper-fixing designs ensures strong roll-changing stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram provided by the present invention.

[0020] Figure 2 It is a structural schematic diagram of the first paper pickup provided by the present invention.

[0021] Figure 3It is a structural schematic diagram of the paper picking station of the first paper picker provided by the present invention.

[0022] Figure 4 It is a structural schematic diagram of the belt paper conveyor provided by the present invention.

[0023] Figure 5 It is a schematic diagram of the side structure of the belt paper conveyor provided by the present invention.

[0024] Figure 6 It is a structural schematic diagram of the automatic glue feeding device provided by the present invention.

[0025] Figure 7 It is a structural schematic diagram of the new paper dispenser provided by the present invention.

[0026] Figure 8 It is a schematic structural diagram of the paper picking negative pressure component provided by the present invention.

[0027] Figure 9 It is a structural schematic diagram of the bonding and cutting mechanism provided by the present invention.

[0028] Figure 10 It is a schematic structural diagram of the transposition system provided by the present invention.

[0029] In the figure, Figure 1As shown, the frame 1, the transposition system 2, the vertical and horizontal track frame 21, the rail body 22, the first walking wheel 23, the second walking wheel 24, the walking wheel drive unit 25, the walking drive motor 251, the rotating base 26, the suspended circumferential rotating component 27, the belt paper conveyor 3, the negative pressure conveyor belt 31, the main drive roller 32, the main drive roller driver 33, the main drive roller motor 331, the auxiliary conveying roller 34, the paper sticking and cutting mechanism installation area 35, the first paper picker 4, and the paper hanging robot arm 4 1. Paper hanging robot arm seat 411, multi-stage adjustment arm 412, paper picking rack 42, fixed roller 43, follower roller 44, follower arm 45, radial movement groove 451, follower tensioning cylinder 46, first elastic unit 47, spring shaft 471, spring seat 472, spring 473, new paper picker 5, paper picking robot arm 51, paper picking articulated seat 511, transposition driver 512, transposition cylinder 513, transposition cylinder seat 514, transposition cylinder connecting seat 515, new paper picker Frame 52, paper picking driving wheel 53, paper picking driven wheel 54, air suction channel 541, paper picking belt 55, second air hole 551, paper picking negative pressure assembly 56, hollow shaft 561, airtight bearing 562, first negative pressure hole 563, air cavity 564, paper picking pressure wheel 57, distance adjustment drive unit 58, distance adjustment cylinder 581, distance adjustment cylinder seat 582, electrostatic device 59, automatic glue feeding device 6, glue hanging wheel bracket 61, glue hanging wheel 62, glue injection box 63, glue injection box spring 64, Glue feeder bracket 65, hair seepage hole 66, glue brush 67, YZ moving mechanism 68, glue hanging cylinder 681, glue hanging motor 682, glue hanging gear 683, glue hanging rack 684, pneumatic spring paper pressing roller 69, bonding and cutting mechanism 7, cutting frame 71, active cutter 72, knife roller 73, paper extending into gap 74, translation frame 75, translation drive unit 76, active bonding top block 77, static bonding top block 78, paper picking station 8, empty paper roll 81, new paper roll 82. DETAILED DESCRIPTION

[0030] like Figures 1 to 10 As shown, this is an automatic roll changing device for an online paper laying machine, including a frame 1, which is connected to a transposition system 2, and two symmetrically arranged belt paper conveyors 3 are provided on the frame 1, and negative pressure conveyor belts 31 are respectively provided on both sides of the belt paper conveyor 3, and a paper hanging mechanical arm 41 is also provided on the frame 1, and the paper hanging mechanical arm 41 is connected to the first paper pickup 4, and the paper hanging mechanical arm 41 can move the empty paper roll 81 clamped by the first paper pickup 4 from the paper picking station 8 to rest on one of the belt paper conveyors 3, and the frame 1 is also provided with a new paper picker 5 that can absorb and fix the paper of the new paper roll 82, and the new paper picker 5 is connected to the paper picking mechanical arm 51 that can move the new paper picker 5 to make the paper rest on another belt paper conveyor 3, and the frame 1 is also provided with an automatic glue feeder 6 that can be used to place adhesive material on the paper on one belt paper conveyor 3, and a bonding and cutting mechanism 7 is also provided between the two belt paper conveyors 3.

[0031] In this embodiment, the frame 1 and other components can be transported to any roll changing station through the switching system 2. The paper hanging robot arm 41 controls the first paper pickup 4 to clamp the paper of the empty paper roll 81 from the paper picking station 8 and move it to the bottom position of the belt paper conveyor 3. The paper picking robot arm 51 controls the new paper picker 5 to absorb and fix the paper head of the new paper roll 82, and pull it to the belt paper conveyor 3 on the other side. Then, the gluing and cutting mechanism 7 arranged between the two belt paper conveyors 3 synchronously glues and cuts the paper glued by the automatic glue feeder 6 to achieve the effect of automatic paper changing.

[0032] More specifically, the first paper pickup 4 includes a paper pickup frame 42 connected to the paper hanging mechanical arm 41, and a fixed roller 43 that can rotate is provided on the paper pickup frame 42, and a follower roller 44 that is parallel to the fixed roller 43 is provided on one side of the fixed roller 43, and a follower arm 45 that can revolve around the fixed roller 43 is provided on one end of the fixed roller 43, and a radial movable groove 451 extending radially along the fixed roller 43 is provided on the follower arm 45. The follower roller 44 is arranged in the radial movable groove 451 and can adjust the distance between it and the fixed roller 43 under the action of the follower tensioning cylinder 46. The end of the follower arm 45 away from the fixed roller 43 is connected to the paper pickup frame 42 through a first elastic unit 47. When the first paper pickup 4 is close to the belt paper conveyor 3, the follower roller 44 abuts against the negative pressure conveyor belt 31 and revolves around the fixed roller 43 under the action of the first elastic unit 47 until the fixed roller 43 also abuts against the negative pressure conveyor belt 31.

[0033] In this embodiment, the first elastic unit 47 includes a spring 473 and a spring shaft 471 arranged on the end of the follower arm 45 away from the fixed roller 43, and a spring seat 472 arranged on the paper pickup rack 42. The two ends of the spring 473 are respectively connected to the spring shaft 471 and the spring seat 472.

[0034] like Figure 1 As shown, the paper-hanging robot arm 41 includes a paper-hanging robot arm base 411 disposed between and below the two belt paper conveyors 3. A positioning arm circumferential rotator is mounted on the paper-hanging robot arm base 411. The positioning arm circumferential rotator is detachably connected to the first paper pickup 4 via a multi-segment positioning arm 412. The positioning arm circumferential rotator and the multi-segment positioning arm 412 are conventional structures and will not be described in detail. Other shifting robots can also be used.

[0035] More specifically, the new paper picker 5 includes a paper picking active wheel 53 and a paper picking driven wheel 54 arranged on the new paper picking frame 52, a paper picking belt 55 is arranged between the paper picking active wheel 53 and the paper picking driven wheel 54, a paper picking negative pressure component 56 is provided between the paper picking belt 55 and the paper picking driven wheel 54, a paper picking pressure wheel 57 is provided between the paper picking active wheel 53 and the new paper picking frame 52, and a distance adjustment drive unit 58 is provided on the paper picking pressure wheel 57, which can drive the paper picking pressure wheel 57 to move radially along the paper picking active wheel 53. An electrostatic device 59 is also provided on one side of the paper picking belt 55, and the new paper picking frame 52 is connected to the paper picking robot arm 51.

[0036] In this embodiment, the distance adjustment drive unit 58 includes a retractable distance adjustment cylinder 581, one end of which is arranged in a distance adjustment cylinder seat 582 on the new paper picking machine frame 52, and the other end is connected to the rotating shaft of the paper picking pressure wheel 57.

[0037] More specifically, the paper picking robot arm 51 includes a paper picking hinge seat 511 arranged on the frame 1 and located below another belt paper conveyor 3. The new paper picking frame 52 is hinged on the paper picking hinge seat 511. A transposition driver 512 is provided between the frame 1 and the position where the new paper picking frame 52 deviates from the rotation center of the paper picking hinge seat 511, which can drive the new paper picking frame 52 to rotate around the rotation center of the paper picking hinge seat 511 so that the paper on the paper picking driven wheel 54 is pressed against the negative pressure conveyor belt 31.

[0038] In this embodiment, the transposition driver 512 includes a retractable transposition cylinder 513 and a transposition cylinder seat 514 arranged on the frame 1, and a transposition cylinder connecting seat 515 is provided on the new paper taking frame 52. The two ends of the transposition cylinder 513 are respectively arranged on the transposition cylinder seat 514 and the transposition cylinder connecting seat 515.

[0039] More specifically, the paper picking negative pressure assembly 56 includes a hollow shaft 561 passed through the paper picking driven wheel 54, and airtight bearings 562 are respectively provided at both ends of the hollow shaft 561 and the paper picking driven wheel 54. A plurality of first negative pressure holes 563 are distributed on the hollow shaft 562, and an air cavity 564 is provided between the paper picking driven wheel 54 and the hollow shaft 561 and the two airtight bearings 562. A plurality of second air holes 551 are provided on the paper picking belt 55, and an air suction channel 541 is provided on the paper picking driven wheel 54, which can make the second air holes 551 on the paper picking belt 55 have negative pressure suction.

[0040] like Figure 8 As shown, the internal air cavity 564 of the paper pickup driven wheel 54, the airtight bearings 562 on both sides, and the hollow shaft 561 together form an airtight space. One end of the hollow shaft 561 is connected to the suction pipe of an external air pump. The negative pressure in the airtight space is transmitted to the surface of the paper pickup belt 55 through the suction channel 541 and the second air hole 551. Together with the electrostatic attraction generated by the electrostatic device 59, the negative pressure produces the adsorption effect of the paper pickup driven wheel 54.

[0041] like Figure 4 and 5 As shown, the belt paper conveyor 3 includes a main drive roller 32 connected to the frame 1, the main drive roller 32 is connected to the main drive roller driver 33, and the two ends of the main drive roller 32 are respectively connected to two auxiliary transmission rollers 34 through two negative pressure conveyor belts 31. A paper adhesive cutting mechanism installation area 35 is provided between the two auxiliary transmission rollers 34, and a paper adhesive cutting mechanism installation area 35 is provided in the paper adhesive cutting mechanism installation area 35.

[0042] In this embodiment, there are multiple groove structures on the surface of the internal cavity of the belt paper conveyor 3, and the surface of the negative pressure conveyor belt 31 is covered with air vents. The internal cavity of the belt paper conveyor 3 is connected to a vacuum pump, and the negative pressure inside the cavity is transferred to the surface of the negative pressure conveyor belt 31 through the connected grooves and air pore structures, which plays an adsorption role.

[0043] In this embodiment, the main transmission roller driver 33 includes a main transmission roller motor 331 provided at one end of the main transmission roller 32 , and the main transmission roller 32 is driven to rotate by the main transmission roller motor 331 .

[0044] More specifically, the bonding and cutting mechanism 7 includes a cutting frame 71, which is provided with an active cutter 72 and a knife roller 73 with multiple stationary cutters. The active cutter 72 and the knife roller 73 are respectively arranged in the bonding and cutting mechanism installation area 35 of the two belt paper conveyors 3. A vertical paper insertion gap 74 is provided between the active cutter 72 and the knife roller 73. The active cutter 72 is arranged on a translation frame 75. A translation drive unit 76 is provided between the translation frame 75 and the cutting frame 71. The translation frame 75 is also provided with an active bonding top block 77 located below the active cutter 72. The cutting frame 71 is also fixed with a stationary bonding top block 78 located below the knife roller 73 and capable of cooperating with the active bonding top block 77.

[0045] More specifically, the automatic glue feeder 6 includes a glue wheel bracket 61, a rotatable glue wheel 62 is provided on the glue wheel bracket 61, a glue injection box 63 is provided between the glue wheel 62 and the glue wheel bracket 61, the glue injection box 63 is connected to the glue wheel bracket 61 through two glue injection box springs 64, the glue injection box 63 is connected to the glue wheel bracket 61 through a number of hair penetration holes 66 and the glue brush 67 acts on the glue wheel 62, the glue wheel bracket 61 is connected to the glue feeder bracket 65 through the YZ moving mechanism 68, and a pneumatic spring paper pressing roller 69 is provided on one side of the glue wheel 62.

[0046] In this embodiment, two pneumatic spring paper pressing rollers 69 are provided on the upper side of the other side belt paper conveyor 3. The YZ moving mechanism 68 includes a glue cylinder 681 that controls the downward pressure of the glue roller 62, and a glue motor 682 that controls the glue roller 62 to apply glue. The glue motor 682 is provided with a glue gear 683. A glue rack 684 that meshes with the glue gear 683 is provided at a position corresponding to the glue gear 683 on the glue feeder bracket 65.

[0047] like Figure 1 and 10 As shown, the transposition system 2 includes a longitudinal and transverse track frame 21 and a longitudinal and transverse diverter arranged at the cross intersection of the longitudinal and transverse track frame 21. A first running wheel 23 and a second running wheel 24 are provided on the rail body 22 of the longitudinal and transverse track frame 21. The first running wheel 23 is connected to the running wheel drive unit 25. The first running wheel 23 and the second running wheel 24 are arranged on a rotating base 26. A suspended circumferential rotating component 27 is provided between the rotating base 26 and the frame 1.

[0048] In this embodiment, the longitudinal and transverse diverters and the suspended circumferential rotating assembly 27 are prior art and will not be elaborated in detail. The first traveling wheel 23 and the traveling wheel driving unit 25 are driven by a sprocket chain, and the traveling wheel driving unit 25 includes a traveling driving motor 251 .

[0049] like Figures 1 to 10 As shown, the present invention is an automatic roll changing method for an online paper laying machine, including the above-mentioned automatic roll changing device for an online paper laying machine, and the specific steps are as follows: S1. By monitoring the paper roll status of multiple online paper laying machines, when an empty roll signal is detected, the automatic roll changing device is moved to the target device above the transposition system 2 scheduling; S2 adjust the direction of the frame 1, so that the first paper pickup 4 toward the side of the empty paper roll 81, take the new paper 5 toward the new paper roll 82 side; S3. The first paper pickup 4 grips the paper on the empty paper roll 81 at the paper pickup station 8 and pulls it to one of the belt paper conveyors 3. The new paper pickup 5 adsorbs and grips the head of the new paper roll 82 and is pulled to another belt paper conveyor 3 by the paper pickup robot 51; S4 two paper conveyor belts 3 are adsorbed empty paper roll 81 and the new paper roll 82 paper head, and move to the pre-closed position waiting for glue; S5 automatic glue device 6 moves along the width direction of the paper in the new paper roll 82 paper head area coating glue; S6 will be empty paper roll 81 and the new paper roll 82 paper head closed and glued, and simultaneously cut the excess paper head; S7. Complete the roll change, return to the standby area, and wait for the next scheduling instruction.

[0050] The working principle of this embodiment is that there are multiple online paper laying machines on the production line below the vertical and horizontal track frame 21. Each online paper laying machine is equipped with a paper roll diameter detection sensor. When the sensor detects that an online paper laying machine has an empty paper roll, the electronic control scheduling system will automatically send an empty roll signal.

[0051] When an empty roll signal is detected, the travel drive motor 251 drives the first travel wheel 23 and the second travel wheel 24 along the longitudinal and transverse track frame 21 to transport the frame 1 and other mechanisms to the top of the workstation where the roll needs to be changed. Under the adjustment of the suspended circumferential rotating component 27, the first paper pickup 4 is directed to the side of the empty paper roll 81 to be replaced, so that the new paper picker 5 is facing the side of the new paper roll 82.

[0052] Before the first paper pickup 4 reaches the paper pickup station 8, the follower roller 44 is separated from the fixed roller 43. After the first paper pickup 4 reaches the paper pickup station 8, the follower roller 44, under the action of the follower tensioning cylinder 46, moves along the radial movable groove 451 with the paper on the empty paper roll 81 pressed against the surface of the fixed roller 43, clamping the paper. Then, the paper hanging mechanical arm seat 411 lifts the first paper pickup 4 upward, driving the paper to contact the negative pressure conveyor belt 31 at the bottom of the belt paper conveyor 3 on one side. Under the suction effect of the negative pressure conveyor belt 31, the paper is transferred to the two pneumatic spring paper pressing rollers 69 above. After the two pneumatic spring paper pressing rollers 69 press the paper tightly, the paper hanging mechanical arm seat 411 drives the first paper pickup 4 to separate from the paper.

[0053] Under the action of the shifting drive 512, the paper pickup driven wheel 54 contacts the surface of the new paper roll 82. At this time, the paper pickup driven wheel 54 rotates under the drive of the paper pickup driving wheel 53 via the paper pickup belt 55. Through the adsorption action of the electrostatic device 59 and the paper pickup negative pressure assembly 56, the paper head of the new paper roll 82 is moved between the paper pickup pressure wheel 57 and the paper pickup driving wheel 53. The paper head is pressed against the paper pickup pressure wheel 57 by the push of the spacing cylinder 581. Subsequently, the shifting drive 512 drives the new paper pickup frame 52 to rotate around the paper pickup hinge seat 511 until it contacts the negative pressure conveyor belt 31 at the bottom of the belt paper conveyor 3 on the other side. The paper head moves along the negative pressure conveyor belt 31 on this side to the pneumatic spring paper pressure roller 69, which presses the paper head.

[0054] After the papers on both sides are pressed against the negative pressure conveyor belt 31 by the pneumatic spring paper pressing roller 69, the glue applying cylinder 681 controls the glue applying wheel 62 to press down so that it contacts the surface of the paper. At the same time, the glue brush 67 keeps in contact with the glue applying wheel 62 under the action of the glue injection box spring 64, and the glue in the glue injection box 63 is siphoned into the glue brush 67 through the hair seepage hole 66. Driven by the glue applying motor 682, the glue applying gear 683 and the meshing gear 684 drive the glue applying wheel 62 to roll and apply glue to the paper.

[0055] After the gluing is completed, the negative pressure conveyor belt 31 sends the glued part of the paper to the paper extending into the gap 74, between the active bonding top block 77 and the static bonding top block 78. The active bonding top block 77 and the active cutter 72 will be pushed forward along the guide rail of the translation drive unit 76 under the drive of the translation drive unit 76 until the active bonding top block 77 is in contact and pressed with the opposite static bonding top block 78. At the same time, the active cutter 72 engages with the blade of the knife roller 73 to cut off the excess paper on the top, and the excess paper scraps fall off automatically.

[0056] So far, the entire process of automatic roll changing is completed, and the transposition system 2 controls the entire mechanism to return to the standby area, or to another roll changing station where a roll needs to be changed, to continue the next roll changing process.

[0057] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

[0058] Although this article uses more frames, transposition systems, longitudinal and transverse track frames, rail bodies, first travel wheels, second travel wheels, travel wheel drive units, travel drive motors, rotating bases, suspended circumferential rotating components, belt paper conveyors, negative pressure conveyor belts, main drive rollers, main drive roller drivers, main drive roller motors, auxiliary conveyor rollers, paper sticking and cutting mechanism installation areas, first paper pickers, paper hanging robotic arms, paper hanging robotic arm seats, multi-section positioning arms, paper pickers, fixed rollers, follower rollers, follower arms, radial moving grooves, follower tensioning cylinders, first elastic units, spring shafts, spring seats, springs, new paper pickers, paper picking robotic arms, paper picking articulated seats, transposition drivers, transposition cylinders, transposition cylinder seats, transposition cylinder connecting seats, new paper pickers The terms such as frame, paper taking active wheel, paper taking driven wheel, air suction channel, paper taking belt, second air hole, paper taking negative pressure assembly, hollow shaft, airtight bearing, first negative pressure hole, air cavity, paper taking pressure wheel, distance adjustment drive unit, distance adjustment cylinder, distance adjustment cylinder seat, electrostatic device, automatic glue feeding device, glue hanging wheel bracket, glue hanging wheel, glue injection box, glue injection box spring, glue feeding device bracket, hair seepage hole, glue brush, YZ moving mechanism, glue hanging cylinder, glue hanging motor, glue hanging gear, glue hanging rack, pneumatic spring paper pressing roller, bonding and cutting mechanism, cutting frame, active cutter, knife roller, paper extending into gap, translation frame, translation drive unit, active bonding top block, static bonding top block, paper taking station, empty paper roll, new paper roll, etc., but the possibility of using other terms is not excluded. The use of these terms is only to more conveniently describe and explain the essence of the present invention. Interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. An automatic roll changing device for an online paper laying machine, characterized in that: The invention comprises a frame (1), wherein the frame (1) is connected to a transposition system (2), and two symmetrically arranged belt paper conveyors (3) are provided on the frame (1), and negative pressure conveyor belts (31) are provided on both sides of the belt paper conveyor (3). The frame (1) is also provided with a paper hanging mechanical arm (41), and the paper hanging mechanical arm (41) is connected to a first paper pickup (4). The paper hanging mechanical arm (41) can move the paper of the empty paper roll (81) clamped by the first paper pickup (4) from the paper picking station (8) to a position against one of the paper picking stations (8). On the belt paper conveyor (3), the frame (1) is also provided with a new paper picker (5) capable of adsorbing and fixing the paper of the new paper roll (82), the new paper picker (5) is connected to a paper picking mechanical arm (51) capable of moving the new paper picker (5) so that the paper is against another belt paper conveyor (3), the frame (1) is also provided with an automatic glue feeder (6) capable of placing adhesive material on the paper on at least one belt paper conveyor (3), and a bonding and cutting mechanism (7) is also provided between the two belt paper conveyors (3).

2. The automatic roll changing device for an online paper laying machine according to claim 1, characterized in that: The first paper picker (4) includes a paper pick-up frame (42) connected to a paper hanging mechanical arm (41), a fixed roller (43) capable of self-rotation is provided on the paper pick-up frame (42), a follower roller (44) parallel to the fixed roller (43) is provided on one side of the fixed roller (43), a follower arm (45) capable of orbiting around the fixed roller (43) is provided on at least one end of the fixed roller (43), a radial moving groove (451) extending radially along the fixed roller (43) is provided on the follower arm (45), and the follower roller (44) is arranged in the radial moving groove. (451) and can be moved along it to adjust the distance between it and the fixed roller (43) under the action of the follower tensioning cylinder (46), and the end of the follower arm (45) away from the fixed roller (43) is connected to the paper pickup frame (42) through the first elastic unit (47). When the first paper pickup (4) is close to the belt paper conveyor (3), the follower roller (44) abuts against the negative pressure conveyor belt (31) and revolves around the fixed roller (43) under the action of the first elastic unit (47) until the fixed roller (43) also abuts against the negative pressure conveyor belt (31).

3. The automatic roll changing device for an online paper laying machine according to claim 1, characterized in that: The new paper picker (5) includes a paper picking active wheel (53) and a paper picking driven wheel (54) arranged on a new paper picking frame (52); a paper picking belt (55) is sleeved between the paper picking active wheel (53) and the paper picking driven wheel (54); a paper picking negative pressure assembly (56) is provided between the paper picking belt (55) and the paper picking driven wheel (54); a paper picking pressure wheel (57) is provided between the paper picking active wheel (53) and the new paper picking frame (52); a distance adjustment drive unit (58) is provided on the paper picking pressure wheel (57) that can drive the paper picking pressure wheel (57) to move radially along the paper picking active wheel (53); an electrostatic device (59) is also provided on one side of the paper picking belt (55); and the new paper picking frame (52) is connected to the paper picking mechanical arm (51).

4. The automatic roll changing device for an online paper laying machine according to claim 3, characterized in that: The paper picking mechanical arm (51) includes a paper picking hinge seat (511) arranged on the frame (1) and located below another belt paper conveyor (3); the new paper picking frame (52) is hinged on the paper picking hinge seat (511); and a transposition driver (512) is provided between the frame (1) and a position where the new paper picking frame (52) deviates from the rotation center of the paper picking hinge seat (511) so as to drive the new paper picking frame (52) to rotate around the rotation center of the paper picking hinge seat (511) so that the paper on the paper picking driven wheel (54) abuts against the negative pressure conveyor belt (31).

5. The automatic roll changing device for an online paper laying machine according to claim 4, characterized in that: The paper picking negative pressure assembly (56) includes a hollow shaft (561) passing through the paper picking driven wheel (54), airtight bearings (562) are respectively provided at both ends of the hollow shaft (561) and the paper picking driven wheel (54), a plurality of first negative pressure holes (563) are distributed on the hollow shaft (562), an air cavity (564) is provided between the paper picking driven wheel (54) and the hollow shaft (561) and the two airtight bearings (562), a plurality of second air holes (551) are provided on the paper picking belt (55), and an air suction channel (541) is provided on the paper picking driven wheel (54) so that the second air holes (551) on the paper picking belt (55) have negative pressure suction.

6. The automatic roll changing device for an online paper laying machine according to any one of claims 1 to 5, characterized in that: The belt paper conveyor (3) includes a main transmission roller (32) connected to the frame (1), the main transmission roller (32) is connected to the main transmission roller driver (33), the two ends of the main transmission roller (32) are respectively connected to two auxiliary transmission rollers (34) through two negative pressure conveyor belts (31), a paper gluing and cutting mechanism installation area (35) is provided between the two auxiliary transmission rollers (34), and the paper gluing and cutting mechanism installation area (35) is provided with the bonding and cutting mechanism (7).

7. The automatic roll changing device for an online paper laying machine according to claim 6, characterized in that: The bonding and cutting mechanism (7) includes a cutting frame (71), the cutting frame (71) is provided with an active cutter (72) and a knife roller (73) having at least one stationary cutter, the active cutter (72) and the knife roller (73) are respectively arranged in the bonding and cutting mechanism installation area (35) of the two belt paper conveyors (3), a vertical paper insertion gap (74) is provided between the active cutter (72) and the knife roller (73), the active cutter (72) is arranged on a translation frame (75), a translation drive unit (76) is provided between the translation frame (75) and the cutting frame (71), the translation frame (75) is further provided with an active bonding top block (77) located below the active cutter (72), and the cutting frame (71) is further fixed with a stationary bonding top block (78) located below the knife roller (73) and capable of cooperating with the active bonding top block (77).

8. The automatic roll changing device for an online paper laying machine according to any one of claims 1 to 5, characterized in that: The automatic glue feeding device (6) includes a glue wheel bracket (61), a rotatable glue wheel (62) is provided on the glue wheel bracket (61), a glue injection box (63) is provided between the glue wheel (62) and the glue wheel bracket (61), the glue injection box (63) is connected to the glue wheel bracket (61) through two glue injection box springs (64), the glue injection box (63) is connected to the glue brush (67) through a plurality of hair seepage holes (66), the glue brush (67) acts on the glue wheel (62), the glue wheel bracket (61) is connected to the glue feeding device bracket (65) through a YZ moving mechanism (68), and at least one pneumatic spring paper pressing roller (69) is provided on one side of the glue wheel (62).

9. The automatic roll changing device for an online paper laying machine according to any one of claims 1 to 5, characterized in that: The transposition system (2) includes a longitudinal and transverse track frame (21) and a longitudinal and transverse diverter arranged at the cross intersection of the longitudinal and transverse track frame (21), a first running wheel (23) and a second running wheel (24) are provided on the rail body (22) of the longitudinal and transverse track frame (21), the first running wheel (23) is connected to the running wheel drive unit (25), the first running wheel (23) and the second running wheel (24) are arranged on a rotating base (26), and a suspended circumferential rotating component (27) is provided between the rotating base (26) and the frame (1).

10. An automatic roll changing method for an online paper laying machine, characterized in that: The automatic roll changing device for an online paper laying machine according to any one of claims 1 to 9 is provided, and the specific steps are as follows: S1. By monitoring the paper roll status of multiple online paper laying machines, when an empty roll signal is detected, the automatic roll changing device is dispatched to move to the top of the target device through the transposition system (2); S2. Adjust the direction of the frame (1) so that the first paper pickup (4) faces the side of the empty paper roll (81) and the new paper pickup (5) faces the side of the new paper roll (82); S3. The first paper picker (4) clamps the paper on the empty paper roll (81) at the paper picking station (8) and pulls it to one of the belt paper conveyors (3). The new paper picker (5) absorbs and clamps the paper head of the new paper roll (82) and pulls it to another belt paper conveyor (3) through the paper picking robot arm (51); S4. Two belt paper conveyors (3) respectively absorb the paper of the empty paper roll (81) and the paper head of the new paper roll (82), and move to the pre-closing position to wait for glue; S5. The automatic glue feeding device (6) moves along the width direction of the paper in the paper head area of the new paper roll (82); S6. The paper of the empty paper roll (81) and the paper head of the new paper roll (82) are closed and glued together, and the excess paper head is cut simultaneously; S7. Complete the roll change, return to the standby area, and wait for the next scheduling instruction.

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