Non-woven fabric slitting rewinding machine and high-efficiency winding roller replacement system

Abstract

The application discloses a non-woven fabric slitting and rewinding machine and a high-efficiency winding roller replacement system, which comprises a rack arranged at one end of a slitting device body; a driving mechanism is arranged at the bottom end of the rack, the driving mechanism drives the rotation of the winding roller at the bottom end, the winding roller winds and drives the movement of a transmission mechanism and a cutting mechanism through the driving mechanism, and the cutting mechanism cuts the non-woven fabric; in the application, the volume of the non-woven fabric wound on the winding roller is increased by continuous winding of the winding roller, the displacement of the driving mechanism which is attached to the winding roller and rotates the winding roller is generated, the cutting mechanism cuts the non-woven fabric, the cut non-woven fabric is adhered to the replacement roller, the surface of the replacement roller is provided with adhesive to adhere the non-woven fabric, meanwhile, the transmission mechanism drives the movement of a material guiding mechanism, so that the winding roller and the replacement roller on the material guiding mechanism move, so that the non-woven fabric is continuously wound in the winding process, the slitting device is not stopped synchronously when the winding roller is replaced, the efficiency of the non-woven fabric slitting is not affected, and the problem of wrinkles of the non-woven fabric caused by starting and stopping is reduced.

Description

Technical Field

[0001] This invention relates to the field of nonwoven fabric processing equipment technology, and in particular to a nonwoven fabric slitting and rewinding machine and a high-efficiency winding roller replacement system. Background Technology

[0002] The nonwoven fabric slitting and rewinding machine consists of four execution units: an unwinding mechanism, a tensioning mechanism, a slitting mechanism, and a rewinding mechanism. These units respectively perform the following tasks: unwinding the nonwoven fabric, adjusting the tension of the fabric surface through various rollers, cutting the fabric after it has been wound to a predetermined length by the rewinding mechanism or dividing the fabric (changing the fabric width), and releasing the fabric from the unwinding mechanism for rewinding.

[0003] For example, the patent with publication number CN115402842B, entitled "A winding drum replacement system and a nonwoven fabric slitting and rewinding machine", and authorized announcement date of April 28, 2023, includes a rewinding carrying mechanism, which includes a symmetrically arranged rotating part that is driven to maintain synchronous circumferential rotation. The rotating part is provided with at least two locking mechanisms. The moving path of the rotating part has a material picking station, a material feeding station, and a winding station. The material picking station is provided with a material feeding platform, which is used to sequentially stack the winding drums so that they can be locked and followed by any set of locking mechanisms. The material feeding station is provided with a material unloading platform, which is used to receive the winding drums released by the locking mechanisms. The invention provides a winding drum replacement system and a nonwoven fabric slitting and rewinding machine with a simple structure. It can realize the automatic replacement of the entire winding and the command to disassemble the completed roll, reducing the tediousness and low efficiency of manual replacement after rewinding. However, this patent cannot enable the slitting device to work continuously, and the winding drum needs to be replaced by starting and stopping, which affects the efficiency of winding.

[0004] The shortcomings of the existing technology are that, when replacing the take-up roller of the slit nonwoven fabric, the slit device is started and stopped manually or mechanically, which causes the slit device to be unable to work continuously. This not only affects the efficiency of the take-up roller in winding the nonwoven fabric, but also causes problems such as misalignment and wrinkles of the nonwoven fabric on the slit device during the start-stop process. Summary of the Invention

[0005] The purpose of this invention is to provide a nonwoven fabric slitting and rewinding machine and a high-efficiency take-up roller replacement system. The take-up roller continuously rewinds the nonwoven fabric, increasing its volume. A drive mechanism that adheres to and rotates the take-up roller is displaced, causing the cutting mechanism to cut the nonwoven fabric. The cut nonwoven fabric adheres to the replacement roller, which has adhesive on its surface to hold the nonwoven fabric together. Simultaneously, a transmission mechanism drives a material guiding mechanism, causing the take-up roller and replacement roller on the guiding mechanism to move. This facilitates automated and continuous rewinding of the nonwoven fabric, allowing the slitting device to operate continuously without stopping, improving the efficiency of nonwoven fabric rewinding, avoiding the need to stop the slitting device synchronously when changing the take-up roller, thus reducing the problem of wrinkles caused by starting and stopping the nonwoven fabric.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a non-woven fabric slitting and rewinding machine and a high-efficiency winding roller replacement system, including a frame located at one end of the slitting device body;

[0007] The bottom end of the frame is provided with a drive mechanism, which drives the bottom take-up roller to rotate. The take-up roller winds up the fabric and drives the transmission mechanism to move through the drive mechanism, as well as the cutting mechanism to cut the non-woven fabric.

[0008] The transmission mechanism is connected to the material guiding mechanism, and the material guiding mechanism moves the replacement roller to the winding roller, so that the replacement roller continuously winds up the nonwoven fabric without interruption.

[0009] As a further description of the above technical solution:

[0010] The driving mechanism includes a swing arm, a driving roller is movably provided at the bottom end of the swing arm, a tripod is provided at one end of the swing arm near the driving roller, a connecting rod is fixedly connected between the two tripods, a connecting frame is provided on the connecting rod, and a support arm for driving the transmission mechanism is fixedly connected to the connecting frame.

[0011] As a further description of the above technical solution:

[0012] The transmission mechanism includes a rectangular frame, within which sliders are symmetrically slidably connected. A connecting shaft is fixedly connected between two sliders. A rotating plate is symmetrically arranged on the connecting shaft. A torsion spring is fixedly connected between two rotating plates. A support spring is fixedly connected to one end of each slider, and the support spring is located within the rectangular frame.

[0013] As a further description of the above technical solution:

[0014] The top of the rotating plate is fixedly connected to an upper connecting rod, which is rotatably connected to the support arm. The bottom of the rotating plate is fixedly connected to a lower connecting rod, which is driven by a material guiding mechanism.

[0015] As a further description of the above technical solution:

[0016] The material guiding mechanism includes a guide rail frame, on which a take-up roller and a replacement roller are mounted; a slide rail frame is slidably connected to the bottom end of the guide rail frame, and a moving bar is provided at one end of the slide rail frame, with locking components arrayed at the top end of the moving bar.

[0017] As a further description of the above technical solution:

[0018] The locking assembly includes a positioning shaft, a locking block is rotatably connected to the positioning shaft, a return spring is sleeved on the outside of the positioning shaft, one end of the return spring is fixed to the locking block, and a limiting strip is provided at one end of the locking block, and the limiting strip is fixed to the moving strip.

[0019] As a further description of the above technical solution:

[0020] A push rod is fixedly connected to the bottom end of the moving bar, and a connecting bar is fixedly connected to the end of the push rod away from the moving bar, and the connecting bar is adapted to the lower connecting rod.

[0021] As a further description of the above technical solution:

[0022] The cutting mechanism includes a support arm, one end of which is fixedly connected to a guide frame, and a cutting blade is slidably disposed between two guide frames. One end of the guide frame is fixedly connected to a connecting sleeve, and a pressure roller is movably connected inside the connecting sleeve.

[0023] As a further description of the above technical solution:

[0024] The cutting blade is fixedly connected to a first rack, one end of which is fixedly connected to an elastic spring, and the bottom end of the elastic spring is fixed to a connecting sleeve. One end of the first rack is engaged with a rotating rod, and the end of the rotating rod away from the first rack is engaged with a connecting rack, and the top end of the connecting rack is fixedly connected to a stop bar.

[0025] A nonwoven fabric slitting and rewinding machine includes the aforementioned take-up roller replacement system.

[0026] This invention provides a nonwoven fabric slitting and rewinding machine and a high-efficiency take-up roller replacement system, which has the following beneficial effects:

[0027] In this invention, the volume of the nonwoven fabric wound on the take-up roller increases due to continuous winding. The drive mechanism that adheres to and rotates the take-up roller is displaced, causing the cutting mechanism to cut the nonwoven fabric. The cut nonwoven fabric adheres to the replacement roller, which has adhesive on its surface to bond the nonwoven fabric. Simultaneously, the transmission mechanism drives the material guiding mechanism to move, causing the take-up roller and replacement roller on the material guiding mechanism to move. This facilitates automated and continuous winding of the nonwoven fabric during the winding process, allowing the slitting device to operate continuously without stopping. This improves the efficiency of nonwoven fabric winding and avoids stopping the slitting device synchronously when changing the take-up roller, which would affect the efficiency of nonwoven fabric slitting and reduce the problem of wrinkles caused by starting and stopping the nonwoven fabric. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a nonwoven fabric slitting and rewinding machine and a high-efficiency winding roller replacement system proposed in this invention;

[0029] Figure 2 This is a schematic diagram of the structure of the take-up roller in this invention;

[0030] Figure 3 This is a side view of the present invention;

[0031] Figure 4 This is a schematic diagram of the support arm in this invention;

[0032] Figure 5 This is a schematic diagram of the transmission mechanism in this invention;

[0033] Figure 6 In this invention Figure 5 A schematic diagram of the local structure at point A in the middle;

[0034] Figure 7 This is a schematic diagram of the drive mechanism in this invention;

[0035] Figure 8 This is a schematic diagram of the material guiding mechanism in this invention;

[0036] Figure 9 In this invention Figure 8 A schematic diagram of the local structure at point B;

[0037] Figure 10 This is a schematic diagram of the cutting mechanism in this invention;

[0038] Figure 11 In this invention Figure 10 A schematic diagram of the local structure at point C.

[0039] Legend:

[0040] 1. Slitting device body; 2. Frame; 21. Mounting strip; 3. Rewinding roller; 4. Drive mechanism; 41. Swing arm; 42. Tripod; 43. Drive roller; 44. Connecting rod; 45. Limiting block; 46. Support arm; 47. Connecting frame; 5. Replacement roller; 6. Transmission mechanism; 61. Rectangular frame; 611. Support spring; 62. Connecting shaft; 63. Torsion spring; 64. Slider; 65. Rotating plate; 66. Lower connecting rod; 67. Upper connecting rod; 7. Feeder 71. Guide rail frame; 72. Slide rail frame; 73. Moving bar; 74. Locking assembly; 741. Locking block; 742. Positioning shaft; 743. Limiting bar; 744. Return spring; 75. Push rod; 76. Linking bar; 8. Cutting mechanism; 81. Support arm; 82. Guide frame; 83. Cutting blade; 84. Connecting sleeve; 85. Pressure roller; 86. Rotating rod; 87. Tooth groove; 88. First rack; 89. Elastic spring; 810. Linking rack. Detailed Implementation

[0041] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0042] Reference Figure 1-11 A nonwoven fabric slitting and rewinding machine and a high-efficiency take-up roller replacement system are disclosed. The machine includes a frame 2 located at one end of the slitting device body 1. A drive mechanism 4 is provided at the bottom end of the frame 2. The drive mechanism 4 drives the bottom take-up roller 3 to rotate. The take-up roller 3 winds up the fabric and drives the transmission mechanism 6 to move and the cutting mechanism 8 to cut the nonwoven fabric through the drive mechanism 4. The transmission mechanism 6 is connected to the material guiding mechanism 7 and moves the replacement roller 5 to the take-up roller 3 through the material guiding mechanism 7, so that the replacement roller 5 continuously winds up the nonwoven fabric without interruption.

[0043] Specifically, the slitting device body 1 cuts the nonwoven fabric. A support frame 2 is located at one end of the slitting device body 1. An installation strip 21 is fixedly connected to the top of the frame 2, and a limiting block 45 for fixing the drive mechanism 4 is fixedly connected to the bottom of the installation strip 21. When the guide mechanism 7 has a winding roller 3 and a replacement roller 5, the winding roller 3 and the replacement roller 5 move unidirectionally from the replacement roller 5 to the winding roller 3 on the guide mechanism 7, and cannot move in the reverse direction. When the winding roller 3 winds up the cut nonwoven fabric, the drive mechanism 4 provides power, causing the winding roller 3 to rotate and wind up the nonwoven fabric. As the winding roller 3 continues to wind, the volume of the nonwoven fabric wound on the winding roller 3 increases, causing the drive mechanism 4, which is attached to and rotates the winding roller 3, to be displaced. The drive mechanism 4 moves along the outer diameter of the winding roller 3. The displacement generated by the large movement drives the transmission mechanism 6 to move. When the drive mechanism 4 moves and abuts against the cutting mechanism 8, the cutting mechanism 8 cuts the nonwoven fabric, causing the nonwoven fabric to separate from the take-up roller 3. The cut nonwoven fabric adheres to the replacement roller 5. The surface of the replacement roller 5 is provided with adhesive to adhere the nonwoven fabric. At the same time, the transmission mechanism 6 drives the guide mechanism 7 to move, causing the take-up roller 3 and the replacement roller 5 on the guide mechanism 7 to move. Under the action of the guide mechanism 7, the replacement roller 5 moves to the position of the take-up roller 3. The drive mechanism 4, which is abutting against the take-up roller 3, falls down and abuts against the replacement roller 5, so as to drive the replacement roller 5 to continue the take-up movement of the nonwoven fabric. This achieves continuous take-up during the take-up process of the nonwoven fabric and avoids stopping the slitting device body 1 synchronously when changing the take-up roller 3, which would affect the efficiency of nonwoven fabric slitting.

[0044] The drive mechanism 4 includes a swing arm 41, a drive roller 43 is movably provided at the bottom end of the swing arm 41, a tripod 42 is provided at one end of the swing arm 41 near the drive roller 43, a connecting rod 44 is fixedly connected between the two tripods 42, a connecting frame 47 is provided on the connecting rod 44, and a support arm 46 for driving the transmission mechanism 6 is fixedly connected to the connecting frame 47.

[0045] Specifically, in the drive mechanism 4, the top of the swing arm 41 is movable and fixed to the frame 2 by the limiting block 45. The drive roller 43 located at the bottom of the swing arm 41 is an existing drive structure and will not be described in detail here. The drive roller 43 is in contact with the take-up roller 3, so that the drive roller 43 drives the take-up roller 3 to rotate. When the volume of the nonwoven fabric on the outer wall of the take-up roller 3 increases, the drive roller 43, which is in contact with the take-up roller 3, moves along the connection between the swing arm 41 and the limiting block 45. The tripod 42 and the connecting rod 44 fixedly connected to the swing arm 41 make a circumferential movement around the connection between the swing arm 41 and the limiting block 45. The movement causes the support arm 46 connected to the connecting rod 44 to drive the transmission mechanism 6 to move in a horizontal state. The connecting frame 47 fixedly connected to one end of the support arm 46 is used to adapt to the trajectory of the movement of the connecting rod 44. The connecting frame 47 is symmetrically fixedly connected to both ends of the support arm 46, so that the transmission mechanism 6 passively drives the material guiding mechanism 7 to move as the volume of the nonwoven fabric on the outer wall of the winding roller 3 increases. This causes the material guiding mechanism 7 to switch the position of the replacement roller 5 and the winding roller 3, so that the nonwoven fabric is continuously wound without interruption during the winding process, thereby improving the efficiency of the nonwoven fabric winding process.

[0046] The transmission mechanism 6 includes a rectangular frame 61, within which sliders 64 are symmetrically slidably connected. A connecting shaft 62 is fixedly connected between the two sliders 64. Rotating plates 65 are symmetrically arranged on the connecting shaft 62. A torsion spring 63 is fixedly connected between the two rotating plates 65. A support spring 611 is fixedly connected to one end of each slider 64, and the support spring 611 is located within the rectangular frame 61. An upper connecting rod 67 is fixedly connected to the top of the rotating plate 65, and the upper connecting rod 67 is rotatably connected to the support arm 46. A lower connecting rod 66 is fixedly connected to the bottom of the rotating plate 65, and the lower connecting rod 66 is drively connected to a material guiding mechanism 7.

[0047] Specifically, in the transmission mechanism 6, the rectangular frame 61 is fixed to the frame 2 by a bracket. A slider 64 is slidably connected within the rectangular frame 61, and a connecting shaft 62 is fixedly connected between the two sliders 64. Torsion springs 63 sleeved on the connecting shaft 62 are respectively fixedly connected to the rotating plate 65. When the support arm 46 pushes the upper connecting rod 67 located on the rotating plate 65, the sliders 64 fixedly connected at both ends of the connecting shaft 62 move along the rectangular frame 61 and compress the support spring 611 located within the rectangular frame 61. After the support spring 611 completes its stroke, the thrust on the rotating plate 65 changes position through the torsion spring 63, allowing the upper connecting rod 67 at the upper end of the rotating plate 65 and the lower connecting rod 66 at the lower end to interchange positions, thus enabling the retraction... The winding roller 3 and the replacement roller 5 move one end of the direction, causing the drive roller 43 to separate from the take-up roller 3. Under the action of the drive roller 43's own gravity, it comes into contact with the replacement roller 5, which has changed position. This allows the replacement roller 5 to take over the take-up roller 3 and continuously wind up the nonwoven fabric. When the drive roller 43 comes into contact with the replacement roller 5, the support spring 611 in the rectangular frame 61 releases the squeezing force and drives the guide mechanism 7 to move. This causes the guide mechanism 7 to unload the take-up roller 3. At the same time, the torsion spring 63 in the connecting shaft 62 resets the rotating plate 65 so that the replacement movement can be performed again. This prevents the slitting device body 1 from stopping and improves the efficiency of the slitting device body 1. This device has a simple structure and is flexible in use, and is worth promoting widely.

[0048] The material guiding mechanism 7 includes a guide frame 71, on which a take-up roller 3 and a replacement roller 5 are mounted; a slide rail frame 72 is slidably connected to the bottom end of the guide frame 71, a moving strip 73 is provided at one end of the slide rail frame 72, and a locking assembly 74 is arrayed at the top end of the moving strip 73; the locking assembly 74 includes a positioning shaft 742, a locking block 741 is rotatably connected to the positioning shaft 742, a return spring 744 is sleeved on the outside of the positioning shaft 742, and one end of the return spring 744 is fixed to the locking block 741, and a limiting strip 743 is provided at one end of the locking block 741, and the limiting strip 743 is fixed to the moving strip 73; a push rod 75 is fixedly connected to the bottom end of the moving strip 73, and a connecting strip 76 is fixedly connected to the end of the push rod 75 away from the moving strip 73, and the connecting strip 76 is adapted to the lower connecting rod 66;

[0049] Specifically, the guide frame 71 in the material guiding mechanism 7 supports the take-up roller 3 and the replacement roller 5. When the push rod 75 moves under the drive mechanism 4 and the transmission mechanism 6, the push rod 75 drives the locking assembly 74 located on the moving bar 73 to move. The locking block 741 located in the locking assembly 74 rotates around the positioning shaft 742 through the return spring 744, so that when the moving bar 73 moves from the take-up roller 3 to the replacement roller 5, the locking block 741 is forced to rotate along the positioning shaft 742, and then resets under the action of the return spring 744. When the moving bar 73 moves along the direction from the replacement roller 5 to the take-up roller 3 under the drive of the transmission mechanism 6, the locking block 741 pushes the take-up roller 3 and the replacement roller 5 to move under the locking of the limiting bar 743, so that the take-up roller 3 and the replacement roller 5 can change position under the drive of the transmission mechanism 6, so that it is more convenient to replace the take-up roller 3, and avoid the slitting device body 1 from stopping work due to the replacement of the take-up roller 3. The non-woven fabric wound on the slitting device body 1 during start-stop is prone to wrinkles, which affects the flatness of the non-woven fabric during slitting.

[0050] The cutting mechanism 8 includes a support arm 81, a guide frame 82 fixedly connected to one end of the support arm 81, a cutting blade 83 slidably disposed between the two guide frames 82, a connecting sleeve 84 fixedly connected to one end of the guide frame 82, and a pressure roller 85 movably connected inside the connecting sleeve 84; a first rack 88 fixedly connected to the top end of the cutting blade 83, an elastic spring 89 fixedly connected to one end of the first rack 88, and the bottom end of the elastic spring 89 fixed to the connecting sleeve 84; a rotating rod 86 meshing with one end of the first rack 88; a connecting rack 810 meshing with the end of the rotating rod 86 away from the first rack 88, and a stop bar fixedly connected to the top end of the connecting rack 810;

[0051] Specifically, in the cutting mechanism 8, the support arm 81 is fixed on the frame 2. When the volume of the nonwoven fabric increases along the outside of the take-up roller 3, the drive roller 43 abuts against the stop bar on the linkage rack 810, causing the linkage rack 810 to drive the first rack 88 to move in the opposite direction through the toothed groove 87 on the rotating rod 86. This causes the cutting blade 83, which is fixedly connected to the bottom end of the first rack 88, to cut the nonwoven fabric. The cutting blade 83 is located directly above the replacement roller 5. After cutting, the cutting blade 83 is reset under the action of the elastic spring 89 as the drive roller 43 falls, so as to facilitate cutting during the replacement of nonwoven fabric, improve the flexibility of the device during use, and make the structure simple and flexible to use.

[0052] Working principle: The take-up roller 3 and the replacement roller 5 move unidirectionally from the replacement roller 5 to the take-up roller 3 on the material guiding mechanism 7, and cannot move in the reverse direction. When the take-up roller 3 takes up the slit nonwoven fabric, the drive mechanism 4 provides power to make the take-up roller 3 rotate to take up the nonwoven fabric. As the take-up roller 3 continues to take up the fabric, the volume of the nonwoven fabric wound on the take-up roller 3 increases. The drive mechanism 4, which is in contact with the take-up roller 3 and rotates it, is displaced. The displacement generated by the drive mechanism 4 along the increase of the outer diameter of the take-up roller 3 drives the transmission mechanism 6 to move. When the drive mechanism 4 moves and abuts against the cutting mechanism 8, The cutting mechanism 8 cuts the nonwoven fabric, separating it from the take-up roller 3. The cut nonwoven fabric adheres to the replacement roller 5, which has adhesive on its surface to hold the nonwoven fabric together. Simultaneously, the transmission mechanism 6 drives the guiding mechanism 7 to move, causing the take-up roller 3 and the replacement roller 5 on the guiding mechanism 7 to move. Under the action of the guiding mechanism 7, the replacement roller 5 moves to the position of the take-up roller 3. The drive mechanism 4, which is pressed against the take-up roller 3, falls down and presses against the replacement roller 5, so as to drive the replacement roller 5 to continue the take-up motion of the nonwoven fabric, thus achieving continuous take-up during the take-up process of the nonwoven fabric.

[0053] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-efficiency take-up roll replacement system, characterized in that, Includes a frame (2) located at one end of the slitting device body (1); The frame (2) is provided with a drive mechanism (4) at the bottom end. The drive mechanism (4) drives the bottom winding roller (3) to rotate. The winding roller (3) winds up the nonwoven fabric and drives the transmission mechanism (6) to move and the cutting mechanism (8) to cut the nonwoven fabric through the drive mechanism (4). The transmission mechanism (6) includes a rectangular frame (61), in which sliders (64) are symmetrically slidably connected, and a connecting shaft (62) is fixedly connected between the two sliders (64). A rotating plate (65) is symmetrically provided on the connecting shaft (62), and a torsion spring (63) is fixedly connected between the two rotating plates (65). A support spring (611) is fixedly connected to one end of the slider (64), and the support spring (611) is located inside the rectangular frame (61). An upper connecting rod (67) is fixedly connected to the top of the rotating plate (65), and the upper connecting rod (67) is rotatably connected to the support arm (46). A lower connecting rod (66) is fixedly connected to the bottom of the rotating plate (65), and a material guiding mechanism (7) is drivenly connected to the lower connecting rod (66). The material guiding mechanism (7) includes a guide frame (71), on which a take-up roller (3) and a replacement roller (5) are provided; a slide frame (72) is slidably connected to the bottom end of the guide frame (71), and a moving strip (73) is provided at one end of the slide frame (72), with locking components (74) arrayed at the top end of the moving strip (73); the locking component (74) includes a positioning shaft (742), a locking block (741) is rotatably connected to the positioning shaft (742), a return spring (744) is sleeved on the outside of the positioning shaft (742), and one end of the return spring (744) is fixed on the locking block (741), and a limiting strip (743) is provided at one end of the locking block (741). The limiting strip (743) is fixed on the moving strip (73); the locking assembly (74) includes a positioning shaft (742), a locking block (741) is rotatably connected to the positioning shaft (742), a return spring (744) is sleeved on the outside of the positioning shaft (742), and one end of the return spring (744) is fixed on the locking block (741). One end of the locking block (741) is provided with a limiting strip (743), and the limiting strip (743) is fixed on the moving strip (73); a push rod (75) is fixedly connected to the bottom end of the moving strip (73), and a connecting strip (76) is fixedly connected to the end of the push rod (75) away from the moving strip (73), and the connecting strip (76) is adapted to the lower connecting rod (66); The transmission mechanism (6) is connected to the material guiding mechanism (7), and the material guiding mechanism (7) moves the replacement roller (5) to the winding roller (3), so that the replacement roller (5) continuously winds up the nonwoven fabric without interruption.

2. The high-efficiency take-up roll replacement system according to claim 1, characterized in that, The drive mechanism (4) includes a swing arm (41), a drive roller (43) is movably provided at the bottom end of the swing arm (41), a tripod (42) is provided at one end of the swing arm (41) near the drive roller (43), a connecting rod (44) is fixedly connected between the two tripods (42), a connecting frame (47) is provided on the connecting rod (44), and a support arm (46) for driving the transmission mechanism (6) is fixedly connected to the connecting frame (47).

3. The high-efficiency take-up roll replacement system according to claim 1, characterized in that, The cutting mechanism (8) includes a support arm (81), one end of which is fixedly connected to a guide frame (82), and a cutting blade (83) is slidably provided between the two guide frames (82). One end of the guide frame (82) is fixedly connected to a connecting sleeve (84), and a pressure roller (85) is movably connected inside the connecting sleeve (84).

4. The high-efficiency take-up roll replacement system according to claim 3, characterized in that, The cutting blade (83) is fixedly connected to a first rack (88) at its top end. An elastic spring (89) is fixedly connected to one end of the first rack (88), and the bottom end of the elastic spring (89) is fixed to the connecting sleeve (84). A rotating rod (86) is engaged at one end of the first rack (88). A connecting rack (810) is engaged at the end of the rotating rod (86) away from the first rack (88), and a stop bar is fixedly connected to the top end of the connecting rack (810).

5. A nonwoven fabric slitting and rewinding machine, characterized in that, It is used in the high-efficiency take-up roll replacement system according to any one of claims 1-4.

Images