Automatic cutting and roll-changing paper rolling equipment

Abstract

The present invention discloses an automatic cutting and roller-changing paper rolling device, which relates to the technical field of paper rolling devices, and comprises a base, a mounting frame is fixedly connected to the top of the base, a motor is installed on the outer wall of the mounting frame, a rotating shaft is connected to the output end of the motor, a winding roller is sleeved on the outer wall of the rotating shaft, and a replacement mechanism and a cutting mechanism are also included. The present invention sets a cutting mechanism, and the support seat moves downward to drive the cross bar to move downward. At this time, the cross bar moves downward along the outer wall of the displacement frame and contacts the inclined surface block, pushing the displacement frame to move horizontally, and the sliding rod displacement pushes the clamping frame to move through the inclined groove, and two clamping pads automatically clamp and fix the paper; at this time, the cross bar displacement contacts the cross plate, and the cross bar displacement drives the movable frame to move downward, and the paper moves downward and contacts the cutter, and the cutter cuts the paper, so that after the paper is rolled up, when the winding roller is replaced, the paper can be automatically cut.

Description

Technical Field

[0001] The invention relates to the technical field of paper rolling equipment, in particular to an automatic cutting and roller-changing paper rolling equipment. Background Art

[0002] In the process of paper production, after the forming and drying operations are completed, the paper needs to be rolled up, that is, the roll is rotated to roll the paper onto the roller. However, after a preset amount of paper is rolled up on the roll, the staff needs to manually cut the paper and then remove the roll for storage and transportation. In order to achieve the purpose of automatically cutting the paper after rolling, an automatic cutting roll-changing paper roll device is provided. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic cutting roll-changing paper rolling device in order to achieve the purpose of automatically cutting the paper after winding.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic cutting and roller-changing paper rolling device, comprising a base, a mounting frame is fixedly connected to the top of the base, a motor is installed on the outer wall of the mounting frame, a rotating shaft is connected to the output end of the motor, a winding roller is sleeved on the outer wall of the rotating shaft, the winding roller is replaced by a replacement mechanism, and the paper is cut by a cutting mechanism; the replacement mechanism comprises a hydraulic cylinder, a first synchronous wheel and a second synchronous wheel, the hydraulic cylinder is installed on the outer wall of the mounting frame, the output end of the hydraulic cylinder is connected to a support seat, the support seat is in contact with the rotating shaft, one end of the support seat is fixedly connected to a connecting frame, a groove is opened on the inner wall of the winding roller, a convex block extending to the outside of the rotating shaft is slidably connected to the inside of the rotating shaft, an elastic sheet is fixedly connected to the outer wall of the convex block, the first synchronous wheel and the second synchronous wheel are both rotatably connected to the inside of the mounting frame, the first synchronous wheel is fixedly connected to the rotating shaft, the first synchronous wheel is located above the second synchronous wheel, and the outer walls of the first synchronous wheel and the second synchronous wheel are connected to synchronous belts.

[0005] As a further solution of the present invention: the replacement mechanism also includes a rotating disk, which is rotatably connected to the inside of the mounting frame and is located at one end of the second synchronous wheel, one end of the rotating disk is fixedly connected to a threaded rod, and the threaded rod and the outer wall of the rotating shaft are slidably penetrated by a push plate, and the inside of the threaded rod is slidably connected to a push rod, one end of the push rod extends out of the threaded rod, and the other end of the push rod is fixedly connected to a displacement disk, a first spring is connected between the displacement disk and the rotating disk, and one end of the displacement disk away from the push rod is fixedly connected to a first clamping block, the first clamping block extends to the outer wall of the rotating disk, and a plurality of second clamping blocks are arranged in a circular array at one end of the second synchronous wheel facing the rotating disk.

[0006] As a further solution of the present invention: the cutting mechanism includes a cross bar, which is fixedly connected to an outer wall of one side of the support seat, the top of the base is located on one side of the mounting frame and is fixedly connected to a fixing frame, the outer wall of the fixing frame is provided with a square groove, the bottom end of the inner wall of the square groove is fixedly connected to a cutter, the interior of the fixing frame is connected to a movable frame for sliding up and down, and a second spring is connected between the bottom end of the movable frame and the fixed frame.

[0007] As a further solution of the present invention: the cutting mechanism also includes a clamping frame, which is symmetrically slidably connected to the interior of the movable frame up and down and extends to the inner cavity of the movable frame, one end of the two clamping frames close to each other is fixedly connected with a clamping pad, a third spring is connected between the clamping frame and the movable frame, the interior of the movable frame is slidably connected with a displacement frame extending from the fixed frame, one end of the displacement frame is fixedly connected with an inclined block, one end of the inclined block is fixedly connected with a cross plate, the cross bar is in contact with the displacement frame and is located above the inclined block, the other end of the displacement frame is fixedly connected with a sliding rod, the outer wall of the clamping frame is provided with an inclined groove, and the sliding rod is slidably connected to the inner wall of the inclined groove.

[0008] As a further solution of the present invention: the inner wall of the winding roller fits with the outer wall of the rotating shaft, and the inner wall of the groove fits with the outer wall of the protrusion.

[0009] As a further solution of the present invention: arc-shaped surfaces are arranged on both sides of the protrusion, a circular hole is opened on the outer wall of the push plate, and the inner wall of the circular hole is in contact with the outer wall of the rotating shaft.

[0010] As a further solution of the present invention: the outer walls of the first synchronous wheel and the second synchronous wheel are both provided with patterns matching the inner wall of the synchronous belt.

[0011] As a further solution of the present invention: a hemispherical surface is provided at one end of the push rod located outside the threaded rod, and the first clamping block is engaged with the second clamping block.

[0012] As a further solution of the present invention: a threaded hole is provided on the outer wall of the push plate, and the threaded hole matches the threaded rod.

[0013] As a further solution of the present invention: the outer wall of the sliding rod is in contact with the inner wall of the inclined groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. By setting up a replacement mechanism, the operation of the hydraulic cylinder drives the support seat to move downward and separate from the rotating shaft. At this time, the downward movement of the support seat drives the connecting frame to move downward, the displacement of the connecting frame contacts the push rod, pushing the push rod to move, the displacement of the first clamping block engages with the second clamping block; the rotation of the rotating shaft drives the threaded rod to rotate, the rotation of the threaded rod drives the push plate to move, the displacement of the push plate drives the winding roller to slide, so as to facilitate the removal of the winding roller; then the new winding roller is sleeved on the outer wall of the rotating shaft, the hydraulic cylinder drives the support seat to move and contact the rotating shaft, and supports one end of the rotating shaft. This design facilitates the rapid replacement of the winding roller.

[0016] 2. By setting up the cutting mechanism, the support seat moves downward and drives the cross bar to move downward. At this time, the cross bar moves downward along the outer wall of the displacement frame and contacts the inclined block, pushing the displacement frame to move horizontally. The sliding rod moves and drives the clamping frame to move through the inclined groove, and the two clamping pads automatically clamp and fix the paper. At this time, the cross bar moves and contacts the cross plate, and the cross bar displacement drives the movable frame to move downward, the paper moves downward and contacts the cutter, and the cutter cuts the paper. This design facilitates automatic cutting of the paper when the winding roller is replaced after the paper is rolled up. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 It is a structural schematic diagram of the mounting frame of the present invention;

[0019] Figure 3 It is a schematic diagram of the internal structure of the mounting frame of the present invention;

[0020] Figure 4 It is a schematic diagram of the internal structure of the rotating shaft of the present invention;

[0021] Figure 5 It is a schematic diagram of the internal structure of the threaded rod of the present invention;

[0022] Figure 6 It is a structural schematic diagram of the fixed frame and the movable frame of the present invention;

[0023] Figure 7 is a schematic diagram of the internal structure of the fixing frame of the present invention;

[0024] Figure 8 It is a schematic diagram of the internal structure of the movable frame of the present invention;

[0025] Fig. 9 It is a schematic structural diagram of the displacement frame of the present invention.

[0026] In the figure: 1, base; 2, mounting frame; 3, motor; 4, rotating shaft; 5, winding roller; 6, replacement mechanism; 601, hydraulic cylinder; 602, support seat; 603, connecting frame; 604, groove; 605, convex block; 606, elastic sheet; 607, first synchronous wheel; 608, synchronous belt; 609, second synchronous wheel; 610, rotating disk; 611, threaded rod; 612, push plate; 613, push rod; 614, Displacement plate; 615, first spring; 616, first clamping block; 617, second clamping block; 7, cutting mechanism; 701, cross bar; 702, fixed frame; 703, square groove; 704, cutter; 705, movable frame; 706, second spring; 707, clamping frame; 708, third spring; 709, displacement frame; 710, inclined block; 711, cross plate; 712, slide bar; 713, inclined groove; 714, clamping pad. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0029] See also Figures 1 to 9 In an embodiment of the present invention, an automatic cutting and roller-changing paper roll device includes a base 1, a mounting frame 2 is fixedly connected to the top of the base 1, a motor 3 is installed on the outer wall of the mounting frame 2, an output end of the motor 3 is connected to a rotating shaft 4, a winding roller 5 is sleeved on the outer wall of the rotating shaft 4, the winding roller 5 is replaced by a replacement mechanism 6, and the paper is cut by a cutting mechanism 7.

[0030] The replacement mechanism 6 includes a hydraulic cylinder 601, a first synchronous wheel 607 and a second synchronous wheel 609. The hydraulic cylinder 601 is installed on the outer wall of the mounting frame 2. The output end of the hydraulic cylinder 601 is connected to a support seat 602, and the support seat 602 is in contact with the rotating shaft 4. One end of the support seat 602 is fixedly connected to a connecting frame 603. A groove 604 is provided on the inner wall of the winding roller 5. A protrusion 605 extending to the outside of the rotating shaft 4 is slidably connected inside the rotating shaft 4. An elastic sheet 606 is fixedly connected to the outer wall of the protrusion 605. The first synchronous wheel 607 and the second synchronous wheel 609 are both rotatably connected to the inside of the mounting frame 2. The first synchronous wheel 607 is fixedly connected to the rotating shaft 4. The first synchronous wheel 607 is located above the second synchronous wheel 609. The outer walls of the first synchronous wheel 607 and the second synchronous wheel 609 are connected to synchronous belts 608. The replacement mechanism 6 also includes a rotating disk 610, which is rotatably connected to the inside of the mounting frame 2 and is located at one end of the second synchronous wheel 609. A threaded rod 611 is fixedly connected to one end of the rotating disk 610. A push plate 612 is slidably penetrated through the threaded rod 611 and the outer wall of the rotating shaft 4. A push rod 613 is slidably connected to the inside of the threaded rod 611. One end of the push rod 613 extends out of the threaded rod 611, and the other end of the push rod 613 is fixedly connected to a displacement disk 614. A first spring 615 is connected between the displacement disk 614 and the rotating disk 610. A first block 616 is fixedly connected to one end of the displacement disk 614 away from the push rod 613. The first block 616 extends to the outer wall of the rotating disk 610. A plurality of second blocks 617 are arranged in a circular array at one end of the second synchronous wheel 609 facing the rotating disk 610.

[0031] In this embodiment, when the paper is rolled up, the motor 3 drives the rotating shaft 4 to rotate, and the rotating shaft 4 drives the winding roller 5 to rotate, and the winding roller 5 rotates to roll up the paper.

[0032] When the winding roller 5 is wound up, the paper is cut by the cooperation of the parts in the cutting mechanism 7, and then the winding roller 5 is replaced. When the winding roller 5 is replaced, the hydraulic cylinder 601 is started, and the operation of the hydraulic cylinder 601 drives the support seat 602 to move downward and separate from the rotating shaft 4. At this time, the support seat 602 moves downward and drives the connecting frame 603 to move downward. The connecting frame 603 moves and contacts with the push rod 613, pushing the push rod 613 to move. The push rod 613 moves and drives the displacement disk 614 to move, squeezing the first spring 615. The displacement of the displacement disk 614 drives the first clamping block 616 to move. The displacement of the first clamping block 616 engages with the second clamping block 617, so that the rotating disk 610 and the second spring 615 are synchronously moved. The wheel 609 can rotate synchronously; at this time, the motor 3 continues to run to drive the rotating shaft 4 to rotate, the rotation of the rotating shaft 4 drives the first synchronous wheel 607 to rotate, the first synchronous wheel 607 rotates to drive the second synchronous wheel 609 to rotate through the synchronous belt 608, the second synchronous wheel 609 rotates to drive the rotating disk 610 to rotate, the rotating disk 610 rotates to drive the threaded rod 611 to rotate, the threaded rod 611 rotates to drive the push plate 612 to move, the push plate 612 moves and contacts with the winding roller 5, pushing the winding roller 5 to slide on the outer wall of the rotating shaft 4, thereby facilitating the removal of the winding roller 5.

[0033] Then, a new winding roller 5 is sleeved on the outer wall of the rotating shaft 4 until the protrusion 605 is engaged in the groove 604 by the elastic force of the elastic sheet 606, so that the rotating shaft 4 can rotate and drive the winding roller 5 to rotate through the protrusion 605, and the hydraulic cylinder 601 is started to drive the support seat 602 to move and contact the rotating shaft 4, and one end of the rotating shaft 4 is supported, and the next round of winding operation can be carried out. This design facilitates the rapid replacement of the winding roller 5.

[0034] Please refer to Figures 6 to 9The cutting mechanism 7 includes a cross bar 701, which is fixedly connected to the outer wall of one side of the support seat 602. The top of the base 1 is located on one side of the mounting frame 2 and is fixedly connected to a fixing frame 702. The outer wall of the fixing frame 702 is provided with a square groove 703. The bottom end of the inner wall of the square groove 703 is fixedly connected to a cutter 704. The interior of the fixing frame 702 is slidably connected to a movable frame 705, and a second spring 706 is connected between the bottom end of the movable frame 705 and the fixing frame 702. The cutting mechanism 7 also includes a clamping frame 707, which is symmetrically slidably connected to the interior of the movable frame 705 and extends to the inner cavity of the movable frame 705. A clamping pad 714 is fixedly connected to one end of the two clamping frames 707 that are close to each other, a third spring 708 is connected between the clamping frame 707 and the movable frame 705, and a displacement frame 709 extending from the fixed frame 702 is slidably connected inside the movable frame 705. One end of the displacement frame 709 is fixedly connected to an inclined block 710, and one end of the inclined block 710 is fixedly connected to a cross plate 711. The cross bar 701 is in contact with the displacement frame 709 and is located above the inclined block 710. The other end of the displacement frame 709 is fixedly connected to a slide bar 712. An outer wall of the clamping frame 707 is provided with an inclined groove 713, and the slide bar 712 is slidably connected to the inner wall of the inclined groove 713.

[0035] In this embodiment: when the paper is rolled up, the paper passes between the two clamping pads 714 and then is wound around the outer wall of the winding roller 5; when the winding roller 5 is finished rolling up, the hydraulic cylinder 601 operates to drive the support seat 602 to move downward, and at this time the support seat 602 moves downward to drive the cross bar 701 to move downward, and at this time the cross bar 701 moves downward along the outer wall of the displacement frame 709 and contacts the inclined surface block 710, the displacement of the cross bar 701 pushes the displacement frame 709 to move horizontally through the inclined surface block 710, the displacement of the displacement frame 709 drives the slide bar 712 to slide in the inclined groove 713, the displacement of the slide bar 712 pushes the clamping frame 707 to move through the inclined groove 713, and the third spring 7 08 causes extrusion, the displacement of the clamping frame 707 drives the clamping pad 714 to move, and the two clamping pads 714 automatically clamp and fix the paper; at this time, the cross bar 701 is displaced and contacts the cross plate 711, and the displacement of the cross bar 701 pushes the cross plate 711 to move downward, and the cross plate 711 moves downward and drives the movable frame 705 to move downward through the displacement frame 709, causing extrusion on the second spring 706, and the movable frame 705 moves downward and drives the paper to move downward through the clamping pad 714, and the paper moves and contacts the cutter 704, and the cutter 704 cuts the paper, so that after the paper is rolled up, when the winding roller 5 is replaced, the paper can be automatically cut.

[0036] It should be pointed out that after the winding of the winding roller 5 is completed, the motor 3 is in a stopped state while the paper is cut by the cooperation of the parts in the cutting mechanism 7; after the paper cutting operation is completed, the motor 3 is started again and continues to run to drive the rotating shaft 4 to rotate, thereby realizing the automatic disassembly operation of the winding roller 5.

[0037] Please refer to Figures 2 to 4 The inner wall of the winding roller 5 fits with the outer wall of the rotating shaft 4 , and the inner wall of the groove 604 fits with the outer wall of the protrusion 605 .

[0038] In this embodiment, the winding roller 5 is sleeved on the outer wall of the rotating shaft 4 until the protrusion 605 is engaged in the groove 604 by the elastic force of the elastic sheet 606, so that the rotating shaft 4 can rotate and drive the winding roller 5 to rotate through the protrusion 605.

[0039] Please refer to Figures 2 to 4 Both sides of the protrusion 605 are provided with arc surfaces, and the outer wall of the push plate 612 is provided with a circular hole, and the inner wall of the circular hole is in contact with the outer wall of the rotating shaft 4.

[0040] In this embodiment: when the winding roller 5 slides on the outer wall of the rotating shaft 4, the arc surface of the protrusion 605 contacts the groove 604, pushing the protrusion 605 to move out of the groove 604 and retract into the rotating shaft 4, thereby canceling the fixation of the winding roller 5. At this time, the winding roller 5 can be driven to slide along the rotating shaft 4 by the push plate 612.

[0041] Please refer to Figures 3 to 5 The outer walls of the first synchronous wheel 607 and the second synchronous wheel 609 are both provided with patterns matching the inner wall of the synchronous belt 608 , and a hemispherical surface is provided at one end of the push rod 613 located outside the threaded rod 611 , and the first clamping block 616 is engaged with the second clamping block 617 .

[0042] In this embodiment: the support seat 602 moves downward to drive the connecting frame 603 to move downward, the connecting frame 603 moves and contacts with the push rod 613, pushing the push rod 613 to move, the push rod 613 moves and drives the displacement disk 614 to move, causing the first spring 615 to be squeezed, the displacement disk 614 moves and drives the first clamping block 616 to move, the first clamping block 616 moves and engages with the second clamping block 617, so that the rotating disk 610 and the second synchronous wheel 609 can rotate synchronously.

[0043] Please refer to Figures 3 to 5 A threaded hole is formed on the outer wall of the push plate 612 , and the threaded hole matches the threaded rod 611 .

[0044] In this embodiment: the rotation of the rotating shaft 4 drives the first synchronous wheel 607 to rotate, the rotation of the first synchronous wheel 607 drives the second synchronous wheel 609 to rotate through the synchronous belt 608, the rotation of the second synchronous wheel 609 drives the rotating disk 610 to rotate, the rotation of the rotating disk 610 drives the threaded rod 611 to rotate, and the rotation of the threaded rod 611 drives the push plate 612 to move.

[0045] Please refer to Figures 6 to 9 , the outer wall of the slide bar 712 is in contact with the inner wall of the inclined groove 713 .

[0046] In this embodiment: the cross bar 701 moves downward along the outer wall of the displacement frame 709 and contacts the inclined block 710. The displacement of the cross bar 701 pushes the displacement frame 709 to move horizontally through the inclined block 710. The displacement of the displacement frame 709 drives the slide bar 712 to slide in the inclined groove 713. The displacement of the slide bar 712 drives the clamping frame 707 to move through the inclined groove 713, causing the third spring 708 to be squeezed. The displacement of the clamping frame 707 drives the clamping pad 714 to move, and the two clamping pads 714 automatically clamp and fix the paper.

[0047] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic cutting and roll-changing paper rolling device, comprising a base (1), a mounting frame (2) fixedly connected to the top of the base (1), a motor (3) mounted on the outer wall of the mounting frame (2), an output end of the motor (3) connected to a rotating shaft (4), a winding roller (5) sleeved on the outer wall of the rotating shaft (4), characterized in that: The reeling roller (5) is replaced by a replacement mechanism (6), and the paper is cut by a cutting mechanism (7); The replacement mechanism (6) comprises a hydraulic cylinder (601), a first synchronous wheel (607) and a second synchronous wheel (609); the hydraulic cylinder (601) is mounted on the outer wall of the mounting frame (2); the output end of the hydraulic cylinder (601) is connected to a support seat (602); the support seat (602) is in contact with the rotating shaft (4); one end of the support seat (602) is fixedly connected to a connecting frame (603); the inner wall of the winding roller (5) is provided with a groove (604); the interior of the rotating shaft (4) is slidably connected to an extension a protrusion (605) on the outside of the rotating shaft (4), the outer wall of the protrusion (605) being fixedly connected to an elastic sheet (606), the first synchronous wheel (607) and the second synchronous wheel (609) being rotatably connected to the inside of the mounting frame (2), the first synchronous wheel (607) being fixedly connected to the rotating shaft (4), the first synchronous wheel (607) being located above the second synchronous wheel (609), and the outer walls of the first synchronous wheel (607) and the second synchronous wheel (609) being connected to synchronous belts (608); The replacement mechanism (6) further comprises a rotating disk (610), the rotating disk (610) being rotatably connected to the interior of the mounting frame (2) and being located at one end of the second synchronous wheel (609), one end of the rotating disk (610) being fixedly connected to a threaded rod (611), a push plate (612) being slidably penetrated through the outer wall of the threaded rod (611) and the rotating shaft (4), a push rod (613) being slidably connected to the interior of the threaded rod (611), one end of the push rod (613) extending out of the threaded rod (611) and into the outer wall of the rotating shaft (4). ), the other end of the push rod (613) is fixedly connected to a displacement disk (614), a first spring (615) is connected between the displacement disk (614) and the rotating disk (610), one end of the displacement disk (614) away from the push rod (613) is fixedly connected to a first clamping block (616), the first clamping block (616) extends to the outer wall of the rotating disk (610), and a plurality of second clamping blocks (617) are arranged in a circular array at one end of the second synchronous wheel (609) facing the rotating disk (610).

2. The automatic cutting and roll-changing paper rolling equipment according to claim 1, characterized in that: The cutting mechanism (7) comprises a cross bar (701), wherein the cross bar (701) is fixedly connected to an outer wall of one side of the support seat (602); the top end of the base (1) is located on one side of the mounting frame (2) and is fixedly connected to a fixing frame (702); a square groove (703) is formed on the outer wall of the fixing frame (702); a cutter (704) is fixedly connected to the bottom end of the inner wall of the square groove (703); a movable frame (705) is slidably connected to the inside of the fixing frame (702) in an upward and downward manner; and a second spring (706) is connected between the bottom end of the movable frame (705) and the fixing frame (702).

3. The automatic cutting and roll-changing paper rolling equipment according to claim 2, characterized in that: The cutting mechanism (7) further comprises a clamping frame (707), wherein the clamping frame (707) is symmetrically slidably connected to the interior of the movable frame (705) in an up-and-down manner and extends to the inner cavity of the movable frame (705), a clamping pad (714) is fixedly connected to one end of the two clamping frames (707) close to each other, a third spring (708) is connected between the clamping frame (707) and the movable frame (705), and a displacement frame extending from the fixed frame (702) is slidably connected to the interior of the movable frame (705). (709), one end of the displacement frame (709) is fixedly connected to a slope block (710), one end of the slope block (710) is fixedly connected to a cross plate (711), the cross bar (701) is in contact with the displacement frame (709) and is located above the slope block (710), the other end of the displacement frame (709) is fixedly connected to a slide bar (712), an outer wall of the clamping frame (707) is provided with an inclined groove (713), and the slide bar (712) is slidably connected to the inner wall of the inclined groove (713).

4. The automatic cutting and roll-changing paper rolling device according to claim 1, characterized in that: The inner wall of the winding roller (5) fits with the outer wall of the rotating shaft (4), and the inner wall of the groove (604) fits with the outer wall of the protrusion (605).

5. The automatic cutting and roll-changing paper rolling device according to claim 1, characterized in that: Both sides of the protrusion (605) are provided with arc-shaped surfaces, and the outer wall of the push plate (612) is provided with a circular hole, and the inner wall of the circular hole is in contact with the outer wall of the rotating shaft (4).

6. The automatic cutting and roll-changing paper rolling device according to claim 1, characterized in that: The outer walls of the first synchronous wheel (607) and the second synchronous wheel (609) are both provided with patterns matching the inner wall of the synchronous belt (608).

7. The automatic cutting and roll-changing paper rolling device according to claim 1, characterized in that: A hemispherical surface is provided at one end of the push rod (613) located outside the threaded rod (611), and the first clamping block (616) is engaged with the second clamping block (617).

8. The automatic cutting and roll-changing paper rolling device according to claim 1, characterized in that: A threaded hole is provided on the outer wall of the push plate (612), and the threaded hole matches the threaded rod (611).

9. The automatic cutting and roll-changing paper rolling device according to claim 3, characterized in that: The outer wall of the sliding rod (712) fits into the inner wall of the inclined groove (713).

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