Nonwoven fabric winding and winding machine

Abstract

The application relates to the technical field of a non-woven fabric production line and provides a non-woven fabric winding and rolling machine, which comprises a rolling device and a guide device; the guide device comprises a first guide assembly and a second guide assembly; the first guide assembly is used for guiding a part of non-woven fabric strips which are cut to the rolling device; the winding machine is configured to be arranged in multiple groups along a non-woven fabric conveying direction; the second guide assembly is used for conveying another part of non-woven fabric which is cut upwards or horizontally over the current winding machine to the next group of winding machines; the rolling device comprises a rolling shaft, a driving device and a swing arm device; the rolling shaft is used for winding a non-woven fabric roll; the swing arm device is detachably connected with the rolling shaft and is used for removing a finished product roll; the rolling device is movably installed on a base; the rolling device is arranged to reciprocate relative to the base along the axial direction of the rolling shaft; and the rolling shaft is provided with one of continuous winding and stage type winding working modes by setting the movement speed of the rolling device.

Description

Technical Field

[0001] This application relates to the technical field of nonwoven fabric production lines, and more particularly to a nonwoven fabric winding and rewinding machine. Background Technology

[0002] In the nonwoven fabric production process, the multiple strips of nonwoven fabric that have been slit need to be wound into rolls separately for subsequent storage, transportation, and use. As the final stage of the nonwoven fabric production line, the winding process's efficiency and winding quality directly affect the overall production capacity and product quality of the entire line.

[0003] Currently, the winding equipment widely used in nonwoven fabric production lines mainly adopts a single-station winding structure, that is, one winding machine corresponds to one nonwoven fabric conveying route for independent winding. When the nonwoven fabric is cut into multiple narrow strips, multiple independent winding machines need to be configured to wind them separately. There is a lack of a unified coordination mechanism between the winding machines, making it difficult to achieve synchronous and efficient winding of multiple nonwoven fabrics.

[0004] In addition, existing winding equipment usually only has a single winding working mode. When the nonwoven fabric production line needs to frequently change product specifications or materials, the single winding working mode is difficult to quickly adapt to the winding process requirements of different products under the winding requirements of nonwoven fabrics of different thicknesses and widths. Summary of the Invention

[0005] In view of the above practical problems and the shortcomings of the existing technology, the main technical problem to be solved by the present invention is to provide a nonwoven fabric winding and rewinding machine that realizes parallel winding operations of multiple winding devices and can flexibly switch between continuous winding and staged winding modes to meet the diversified development needs of modern nonwoven fabric production lines.

[0006] To solve the above-mentioned technical problems, this application provides a non-woven fabric winding and rewinding machine, which adopts the following technical solution:

[0007] A nonwoven fabric winding and rewinding machine includes a frame consisting of a base and a support frame, a winding device disposed on the base, and a guiding device disposed on the support frame.

[0008] The guiding device includes a first guiding component and a second guiding component; the first guiding component is disposed at the inlet end of the winding device and is used to guide a portion of the cut nonwoven strip into the winding device.

[0009] The winding machine is configured to be arranged in multiple groups along the nonwoven fabric conveying direction, and the nonwoven fabric strip conveying between two adjacent groups of winding machines is guided by the second guide component; the second guide component is used to convey another part of the cut nonwoven fabric upward or horizontally over the current winding machine to the next group of winding machines.

[0010] The winding device includes a winding shaft, a drive device, and a swing arm device. The two ends of the winding shaft are rotatably connected to the drive device and the swing arm device, respectively, and are suspended on the base by the support of the two. The winding shaft is used for winding non-woven fabric rolls.

[0011] The swing arm device is detachably connected to the take-up shaft, and is used to release the constraint on the corresponding end of the take-up shaft after the finished roll is wound up, so as to remove the finished roll; the take-up shaft is configured to accommodate at least one set of finished rolls along its axial direction.

[0012] The winding device is movably mounted on the base, and the winding device is configured to reciprocate relative to the base along the axial direction of the winding shaft; and by setting the movement speed of the winding device, the winding shaft can have one of two working modes: continuous winding and staged winding.

[0013] A single winding machine can be configured to operate in either a continuous winding mode or a staged winding mode; multiple winding machines can operate in either one or both of these modes simultaneously.

[0014] In a preferred embodiment: the winding device further includes a movable base plate, and the driving device and the swing arm device are both fixed to the base plate;

[0015] The base plate is slidably disposed along the axial direction of the take-up shaft, and the base plate and the base are in sliding fit. The base plate and the base are connected by a moving drive assembly; the moving drive assembly is used to drive the base plate to slide relative to the base.

[0016] In a preferred embodiment: the motion drive assembly includes a ball screw pair and a servo motor, the lead screw of the ball screw pair is connected to the output end of the servo motor, and the lead screw nut of the ball screw pair is fixed below the base plate;

[0017] The base is provided with linear slide rails on both sides along the nonwoven fabric conveying direction, and the linear slide rails extend along the axial direction of the take-up shaft; a slide block is provided on the base plate at the position corresponding to the linear slide rail; the slide block slides on the linear slide rail.

[0018] In a preferred embodiment: the second guiding assembly includes a guide slitting roller group and a plurality of guide transition roller groups;

[0019] The guide slitting roller group is located at the outlet end or path turning point of the second guide assembly, and is used to guide the nonwoven fabric that has passed the current winding machine to the winding device corresponding to the next group of winding machines.

[0020] A crossbeam extends along the nonwoven fabric conveying direction on the support frame, the crossbeam extending from the current winding machine to the next winding machine; several sets of guide transition rollers are distributed at intervals along the extension direction of the crossbeam.

[0021] Each set of guide transition rollers includes several transition rollers that are vertically distributed perpendicular to the nonwoven fabric conveying route, and multiple transition rollers are coaxially arranged in the same plane and distributed at different positions along the width direction of the nonwoven fabric.

[0022] In a preferred embodiment: the first guide assembly consists of a slitting roller group, a transition roller group, a gravity roller group, and a guide roller group arranged sequentially along the conveying direction of the nonwoven fabric;

[0023] A set of slitting rollers is matched with a set of transition rollers, a set of gravity rollers and a set of guide rollers to form a nonwoven fabric guide channel;

[0024] An edge detection device is provided between the transition roller group and the gravity roller group. The edge detection device is used to detect the edge status of the nonwoven strip in real time during the conveying process.

[0025] The flanging detection device includes two sets of photoelectric sensors arranged opposite each other along the width direction of the nonwoven fabric strip, with the detection end of the photoelectric sensors facing the nonwoven fabric strip; the interval between the two sets of photoelectric sensors is set to an adjustable structure.

[0026] In a preferred embodiment: the winding device is further provided with a pressure roller assembly, the pressure roller assembly includes a pressure roller bracket, a pressure roller and a counterweight assembly, a support frame is provided on the base, the middle position of the pressure roller bracket is rotatably hinged to the support frame, and the pressure roller bracket can swing relative to the support frame along the hinge end;

[0027] The pressure roller is used to contact the surface of the nonwoven fabric roll. The pressure roller and the counterweight assembly are respectively fixed at opposite ends of the swing direction of the pressure roller bracket. The counterweight assembly provides adjustable clamping force to the pressure roller through the pressure roller bracket, so that the pressure roller always adheres to the surface of the nonwoven fabric roll with appropriate pressure when the diameter of the nonwoven fabric roll changes.

[0028] In a preferred embodiment: the winding device includes an inlet component located at the inlet end of the winding device and at the outlet end of the first guide component;

[0029] The import assembly includes an import bracket and at least two sets of import rollers, the import rollers being rotatably mounted on the import bracket; the middle position of the import bracket is rotatably hinged to the support frame;

[0030] The guide roller is provided at one end of the two opposite ends of the swing direction of the guide bracket, and a tensioning component is provided at the other end. The tensioning component is used to adjust the swing angle of the guide bracket. The tensioning component is configured to adjust accordingly when the guide bracket swings up and down under the action of external force.

[0031] In a preferred embodiment: a linkage device is provided between the pressure roller assembly and the guide assembly, the pressure roller assembly swings in response to changes in the diameter of the nonwoven fabric, and the pressure roller assembly drives the guide assembly to swing in response through the linkage device;

[0032] The pressure roller assembly is slidably connected to the linkage device, and the pressure roller assembly is configured to reciprocate relative to the linkage device along the axial direction of the take-up shaft.

[0033] In a preferred embodiment: the linkage device includes a support rod and a sliding block, the pressure roller bracket includes a first crossbar, and the guide bracket includes a second crossbar. Both the first crossbar and the second crossbar are located on the side close to the nonwoven fabric roll.

[0034] The sliding block is slidably connected to the first crossbar, and the two ends of the support rod are respectively fixed to the second crossbar and the sliding block; through the sliding engagement of the sliding block and the first crossbar, the pressure roller assembly can reciprocate relative to the linkage device along the axial direction of the winding shaft.

[0035] In a preferred embodiment: the swing arm device includes a swing arm and a swing arm drive assembly. One end of the swing arm is provided with a connecting structure for connecting with the take-up shaft. A support rod is provided on the base. The other end of the swing arm is hinged to the support rod, and a connecting piece extends from this end. The connecting piece is connected to the output end of the swing arm drive assembly.

[0036] The connection structure includes a second cylinder and a bearing housing assembly. The bearing housing assembly is used to rotate with the take-up shaft. The output end of the second cylinder is connected to the bearing housing assembly and is used to drive the bearing housing assembly to slide along the axial direction of the take-up shaft so as to separate it from the take-up shaft or form a rotational connection.

[0037] After the bearing housing assembly separates from the take-up shaft, the swing arm drive assembly drives the swing arm to swing away from the take-up shaft to unload the finished roll.

[0038] In summary, this application has the following beneficial effects:

[0039] 1. Employing a modular design, each winding machine has an independent frame (consisting of a base and support frame), with the guide device positioned above the winding unit, making full use of vertical space. Simultaneously, the second guide assembly, through a vertically multi-layered arrangement of several sets of guide transition rollers, ensures that the nonwoven fabric strips bypassing the current unit are staggered from other components in the vertical direction, avoiding congestion of multiple nonwoven fabric strips in the horizontal direction. This compact structural design allows multiple winding machines to be arranged sequentially along the conveying direction, accommodating more winding stations within a limited production line length, significantly saving equipment floor space.

[0040] 2. The winding machines are configured to be arranged in multiple sets sequentially along the nonwoven fabric conveying direction, with the nonwoven fabric strip conveying between adjacent sets of winding machines guided by a second guide component. In practical applications, any number of winding machines can be connected in series along the conveying direction according to production scale needs. Simply use the nonwoven fabric strip output from the second guide component of the preceding unit as the input to the first guide component of the following unit to flexibly expand the number of winding stations. This design allows the production line to quickly adapt to different capacity requirements without redesigning and manufacturing the entire set of equipment, reducing equipment investment and modification costs.

[0041] 3. The winding device is movably mounted on the base and can reciprocate relative to the base along the axial direction of the winding shaft. By controlling the movement speed of the winding device, continuous winding is achieved when the winding device moves at a constant speed, with the nonwoven fabric arranged layer by layer in a spiral pattern. This is suitable for thin, uniform materials with high winding efficiency requirements. When the winding device moves intermittently in a stepping motion, staged winding is achieved, with the nonwoven fabric stacked in parallel ring-shaped layers. This is suitable for heavy materials or processes with special requirements for interlayer alignment. Switching between the two modes can be achieved simply by adjusting the movement speed of the winding device through the control system, without the need to replace equipment or make complex mechanical structure adjustments, making operation simple and quick.

[0042] 4. A single winding machine can be independently set to continuous winding mode or staged winding mode, and multiple winding machines can simultaneously include one or both of these modes. In actual production, when nonwoven fabric products of different specifications and materials are produced simultaneously on the same production line, each winding machine can be set to an appropriate winding mode according to the process requirements of the fabric strips it is handling: some units operate in continuous winding to pursue efficiency, while others operate in staged winding to ensure the quality of special products, without interfering with each other. This design allows a single production line to simultaneously meet the winding needs of multiple products, greatly improving the production line's flexible production capability. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the overall structure of the winding machine in this embodiment;

[0044] Figure 2 This is a schematic diagram of the overall structure of the winding device in this embodiment;

[0045] Figure 3 This is a schematic diagram of the connection structure between the base plate and the base of the winding device in this embodiment;

[0046] Figure 4 This is a side view of the overall structure of the winding device in this embodiment;

[0047] Figure 5 This is a cross-sectional view of the detachable connection structure between the swing arm device and the winding shaft in this embodiment;

[0048] Figure 6 This is a schematic diagram of the pressure roller assembly in this embodiment;

[0049] Figure 7 This is a schematic diagram of the connection structure of each cylinder in the winding device of this embodiment;

[0050] Figure 8 This is a schematic diagram of the imported component in this embodiment;

[0051] Figure 9 This is a schematic diagram showing the connection between the pressure roller assembly and the infeed assembly in this embodiment via a linkage device;

[0052] Figure 10 This is a schematic diagram of the overall structure of the guiding device in this embodiment;

[0053] Figure 11 This is a schematic diagram of the slitting roller assembly in this embodiment;

[0054] Figure 12 This is a schematic diagram of the transition roller assembly in this embodiment;

[0055] Figure 13 This is a schematic diagram of the gravity roller assembly and guide roller assembly in this embodiment;

[0056] Figure 14 This is a schematic diagram of the flange detection device in this embodiment;

[0057] Figure 15 This is a side sectional view of the overall structure of the winding machine in this embodiment;

[0058] Figure 16 This is a side sectional view of the structure of multiple winding machines arranged for winding in this embodiment.

[0059] Explanation of reference numerals in the attached drawings: 100, frame; 110, base; 111, linear guide rail; 120, support frame; 121, mounting plate; 130, moving drive assembly; 131, lead screw; 132, lead screw nut; 200, guide device; 210, slitting roller group; 211, first mounting base; 212, adjusting rod; 220, transition roller group; 221, transition guide roller; 222, convex ring; 230, gravity roller group; 231, gravity roller; 232, gravity... 233. Support; 240. Tension sensor; 241. Guide roller assembly; 242. Guide roller; 243. Locking component; 250. Flanging detection device; 251. Support; 252. Fixed U-plate; 253. Guide rod; 254. Slider; 255. Photoelectric sensor; 260. Guide transition roller assembly; 261. Vertical support; 262. Guide shaft; 263. Transition roller; 270. Guide slitting roller assembly; 280. Guide mounting frame; 28 1. Vertical mounting plate; 282. Support shaft; 283. Support beam; 284. Crossbeam; 300. Winding device; 310. Winding shaft; 320. Drive device; 330. Swing arm device; 331. Swing arm; 332. First cylinder; 333. Connecting piece; 334. Second cylinder; 335. Push rod; 336. Bearing seat assembly; 340. Base plate; 341. Slide; 342. Support rod; 343. Support frame; 350. Pressure roller assembly; 351. 352. Pressure roller support; 353. Pressure roller shaft; 354. Counterweight roller; 355. Third cylinder; 360. Inlet assembly; 361. Inlet support; 362. Inlet roller; 363. Connecting rod; 364. Fourth cylinder; 370. Linkage device; 371. First crossbar; 372. Receiving plate; 373. Second crossbar; 374. Sleeve; 375. Sliding block; 376. Support rod; 400. Nonwoven fabric roll; 410. Nonwoven fabric strip. Detailed Implementation

[0060] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0061] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0062] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped", "sleeved / connected", "connected", etc., should be interpreted broadly. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0063] The following is in conjunction with the appendix Figures 1-16 This application will be described in further detail.

[0064] This embodiment provides a nonwoven fabric winding and rewinding machine, which includes a frame 100, which is composed of a base 110 and a support frame 120. The support frame 120 is equipped with a guiding device 200, and the base 110 is equipped with a winding device 300. The guiding device 200 is used to guide the conveying direction of the nonwoven fabric and feed the nonwoven fabric to the winding device 300; the winding device 300 is used to perform the winding operation of the nonwoven fabric.

[0065] refer to Figure 2 The winding device 300 includes a winding shaft 310, a drive device 320, a swing arm device 330, and a movable base plate 340. Both the drive device 320 and the swing arm device 330 are fixed to the base plate 340. One end of the winding shaft 310 is connected to the output end of the drive device 320, and the other end is connected to the swing arm device 330, thus suspending it above the base plate 340 with the support of both. The winding shaft 310 is horizontally suspended above the base plate 340 and is used to attach paper tubes or directly support nonwoven fabric. Driven by the drive device 320, it rotates at a uniform speed to achieve continuous winding of the nonwoven fabric into a roll. The swing arm device 330 can be used to release the constraint on the end of the shaft by swinging outward after the finished roll is wound, facilitating unloading.

[0066] The base plate 340 is slidably arranged along the axial direction of the winding shaft 310, and the winding device 300 can switch between two working modes, "continuous winding" and "stage winding", by adjusting its moving speed.

[0067] refer to Figure 3 Specifically, the base plate 340 is slidably engaged with the base 110 and is driven by a movable drive assembly 130 mounted on the base 110. In this embodiment, the movable drive assembly 130 preferably adopts a ball screw pair, with the screw 131 being connected to the output end of the servo motor via a synchronous belt transmission structure; the screw nut 132 is fixed below the base plate 340, and the base plate 340 has a through hole for the screw 131 to pass through. The screw 131 is horizontally arranged along the moving direction of the base plate 340 and passes through the through hole to rotate with the screw nut 132.

[0068] When the servo motor starts, the power is decelerated by the synchronous belt transmission structure and transmitted to the lead screw 131, driving the lead screw 131 to rotate in place. Since the lead screw nut 132 is fixed on the base plate 340, the rotational motion of the lead screw 131 is converted into a linear thrust of the base plate 340 by the lead screw nut 132, thereby driving the entire winding unit (including the drive device 320, the swing arm device 330 and the winding shaft) to make a smooth reciprocating linear lateral movement along the base 110.

[0069] Driven by the moving drive assembly 130, the base plate 340 can not only reciprocate unidirectionally along the axis of the winding shaft 310, but also continuously reciprocate laterally within a set axial travel range according to a preset program. That is, after the base plate 340 completes one stroke from the starting end to the ending end, the servo motor reverses, driving the base plate 340 to move back to the starting end, and so on in a cycle. This reciprocating motion is synchronized with the rotational motion of the winding shaft, so that the nonwoven fabric is evenly distributed from one end of the roll to the other end during the winding process, and then distributed back layer by layer in the opposite direction, thereby achieving a neat arrangement and uniform accumulation of thickness on the axial end face of the finished roll.

[0070] Continuous winding working mode: The servo motor continuously rotates forward or reverse, driving the lead screw 131 to rotate continuously, causing the base plate 340 to make a "uniform and uninterrupted reciprocating linear motion" along the axial direction of the winding shaft at a set speed. When the base plate 340 reaches the preset winding width stroke endpoint, the control system immediately switches the direction of the servo motor, and the base plate 340 then moves in the opposite direction at a uniform speed, cycling back and forth between the two endpoints. The nonwoven fabric is wound layer by layer on the winding shaft 310 in a continuous spiral trajectory from one end to the other. After the base plate 340 reaches the endpoint, the next layer of nonwoven fabric is wound back in the opposite spiral direction, and so on, until the preset roll diameter is reached. The reciprocating motion in this mode ensures the continuous, uniform, and cross-stacking of the nonwoven fabric on the roll, which is the preferred solution for high-speed automated winding operations.

[0071] Staged winding mode: The servo motor rotates intermittently forward or reverse according to a program, driving the base plate 340 to perform a "step-like segmented reciprocating motion". Specifically, after the take-up shaft 310 continuously rotates to complete a preset number of turns (such as a whole layer) of winding, the servo motor starts, driving the base plate 340 to move axially by a set step distance (usually equal to the width of the nonwoven fabric). After the base plate 340 moves into position, the take-up shaft 310 continues to rotate to wind the next layer, thus advancing layer by layer. When the base plate 340 moves to the end of its stroke, the servo motor reverses, and the base plate 340 advances in the opposite direction, returning layer by layer to the starting end. Unlike the continuous mode, in the staged mode, each layer of nonwoven fabric on the roll is a parallel ring-shaped layer, with layers stacked in a stepped manner upwards along the axial direction. This reciprocating motion method is particularly suitable for wide and thick nonwoven fabrics or processes with special requirements for interlayer alignment.

[0072] refer to Figure 3 In this embodiment, the base plate 340 and the base 110 are in a movable fit relationship. The two sides of the base 110 can slide and fit with the slide block 341 on the base plate 340 through the linear slide rail 111, so as to ensure that the base plate 340 can still perform low friction and high precision reciprocating linear motion relative to the base 110 when bearing the winding load.

[0073] In this embodiment, the swing arm device 330 includes a swing arm 331 and a swing arm 331 drive assembly. One end of the swing arm 331 is connected to the take-up shaft 310, and the other end is connected to the swing arm 331 drive assembly. (Reference) Figure 4 Specifically, the base plate 340 is provided with a support rod 342, and the other end of the swing arm 331 is hinged to the support rod 342 and extends outward to form a connecting piece 333. The swing arm 331 driving assembly includes a first cylinder 332 mounted on the base plate 340. The first cylinder 332 is preferably a telescopic cylinder, and its output end is hinged to the connecting piece 333. By driving the swing arm 331 to swing, one end of the swing arm 331 can be engaged with or disengaged from the winding shaft 310.

[0074] refer to Figure 5 One end of the swing arm 331 is provided with a connecting structure for detachable connection with the take-up shaft 310. This connecting structure includes a second cylinder 334, a push rod 335, and a bearing housing assembly 336. The second cylinder 334 is preferably a telescopic cylinder, mounted on the swing arm 331; the bearing housing assembly 336 is used for rotatable engagement with the take-up shaft 310; the two ends of the push rod 335 are respectively connected to the output end of the second cylinder 334 and the bearing housing assembly 336. The second cylinder 334 drives the bearing housing assembly 336 to slide axially along the take-up shaft 310 via the push rod 335, thereby separating it from the take-up shaft 310 or forming a rotatable connection.

[0075] To improve the stability of the nonwoven fabric winding process, the winding device 300 is also equipped with a pressure roller assembly 350. (Reference) Figure 6 The pressure roller assembly 350 includes a pressure roller bracket 351, a pressure roller 352, and a counterweight assembly. The pressure roller 352 and the counterweight assembly are respectively fixed to both sides of the pressure roller bracket 351, and pressure roller brackets 351 are respectively provided at both ends of the pressure roller 352 along the axial direction. The pressure roller bracket 351, the pressure roller 352, and the counterweight assembly form a frame structure. The pressure roller 352 is used to press against the surface of the nonwoven fabric roll 400 on the winding shaft 310. The counterweight assembly is used to provide continuous downward pressure, so that the pressure roller 352 always adheres to and presses the nonwoven fabric roll 400 tightly. As the winding diameter of the nonwoven fabric roll 400 gradually increases, the pressure roller 352 is lifted synchronously, always maintaining contact with the surface of the fabric roll.

[0076] A support frame 343 is provided on the base plate 340. A pressure roller shaft 353 is horizontally provided in the middle of the pressure roller bracket 351. The pressure roller shaft 353 is rotatably hinged to the support frame 343, so that the pressure roller bracket 351 is suspended above the base plate 340 and can swing relative to the support frame 343 around the pressure roller shaft 353.

[0077] refer to Figure 4 The counterweight assembly and pressure roller 352 are respectively arranged on both sides of the pressure roller shaft 353, with the pressure roller shaft 353 as the fulcrum, and each is located at both ends of the swing direction of the pressure roller bracket 351 around the support frame 343. The counterweight assembly and pressure roller 352 are respectively located on both sides of the pressure roller shaft 353 and at opposite ends of the swing direction of the pressure roller bracket 351. The pressure roller 352 is located on the front side of the swing end to directly contact the fabric roll, and the counterweight assembly is located on the rear side of the swing end. Utilizing the lever principle, a balancing torque is provided, allowing the pressure roller 352 to adhere to the surface of the nonwoven fabric roll 400 with appropriate pressure.

[0078] To further improve the bonding effect of pressure roller 352 on nonwoven fabric roll 400, refer to Figure 7 The counterweight assembly includes a counterweight roller 354 and a third cylinder 355. The third cylinder 355 is fixed to the base plate 340, and its output end is connected to the counterweight roller 354; the counterweight roller 354 is fixedly mounted on the pressure roller bracket 351. Through the synergistic effect of the self-weight of the counterweight roller 354 and the output force of the third cylinder 355, an adjustable auxiliary pressing force is provided to the pressure roller 352, ensuring that the pressure roller 352 always adheres to the surface of the fabric roll with appropriate pressure throughout the entire process of the diameter change of the nonwoven fabric roll 400, effectively expelling interlayer air and preventing entanglement and loosening.

[0079] refer to Figure 1In this embodiment, two sets of winding devices 300 are arranged side by side on the base 110 along the axial direction of the winding shaft 310. In a single set of winding devices 300, the winding shaft 310 can simultaneously support the winding and forming of 1 to 3 nonwoven fabric rolls 400 along its axial direction; and the winding shaft 310 is preferably an air-expanding shaft, which tightens the paper tube by inflation and loosens the finished roll by deflation, so as to achieve quick clamping and convenient unloading.

[0080] Specifically, the length of the air shaft is designed to accommodate multiple paper tubes nested side-by-side. Each paper tube is fixed separately through segmented expansion (or overall expansion) of the air shaft. After winding, multiple rolls of finished products can be obtained simultaneously on the shaft, and then unloaded uniformly. The axial length of the pressure roller 352 is adapted to the length of the winding shaft 310 to ensure that the pressure roller 352 can effectively press against the surface of each nonwoven fabric roll 400 along the entire length of the winding shaft 310, avoiding any unpressed areas. The pressure roller 352 can simultaneously cover all nonwoven fabric rolls 400 (1-3 rolls) carried on the winding shaft 310, ensuring that each roll receives uniform and stable compression during the winding process.

[0081] Each winding roller of the winding unit 300 is driven by an independent drive unit 320, and the two base plates 340 of the two winding units 300 are driven synchronously by the same moving drive assembly 130. Specifically, in terms of drive configuration, the winding roller of each winding unit 300 is driven independently by the built-in drive unit 320 to achieve independent control of the rotational speed of each winding roller; the two base plates 340 of the two winding units 300 are driven together by the same moving drive assembly 130 to ensure that the two winding units 300 maintain synchronous displacement during lateral movement.

[0082] An inlet assembly 360 is disposed above the winding device 300, and one inlet assembly 360 is disposed corresponding to one set of winding devices 300. The inlet assembly 360 is fixedly assembled to the support frame 120 and located below the support frame 120. The inlet assembly 360 is disposed between the winding device 300 and the guide device 200, and is used to guide and transport the nonwoven fabric output from the guide device 200 to the winding device 300.

[0083] refer to Figure 8 The infeed assembly 360 includes an infeed bracket 361 and at least two sets of infeed rollers 362. Two mounting plates 121 extend downwards from the lower part of the support frame 120, and are spaced apart along the axial direction of the infeed rollers 362. Each mounting plate 121 has one infeed bracket 361 fixedly mounted on it, and the infeed rollers 362 are rotatably connected between the two infeed brackets 361. At least two sets of infeed rollers 362 are sequentially arranged along the conveying direction of the nonwoven fabric to achieve multi-stage guidance and initial tension stabilization of the nonwoven fabric.

[0084] The guide bracket 361 is rotatably connected to the mounting plate 121. The guide bracket 361 has a first end and a second end along its length, with the guide roller 362 rotatably connected to the first end and a tensioning assembly provided at the second end. The tensioning assembly is used to adjust the swing angle of the guide bracket 361, thereby changing the wrap angle of the guide roller 362 with the nonwoven fabric, to achieve fine-tuning of the nonwoven fabric tension.

[0085] refer to Figure 7 Specifically, the tensioning assembly includes a connecting rod 363 and a fourth cylinder 364. The fourth cylinder 364 is fixed to the support frame 120, and its output end is connected to the connecting rod 363. The two ends of the connecting rod 363 are respectively fixedly connected to the guide brackets 361 on both sides. When the fourth cylinder 364 extends or retracts, the connecting rod 363 drives the two guide brackets 361 to swing synchronously, thereby adjusting the contact angle and covering curvature between the guide roller 362 and the nonwoven fabric, ensuring that the nonwoven fabric maintains a suitable and stable tension state before entering the winding device 300, and avoiding loose winding or fabric wrinkles caused by uneven tension.

[0086] refer to Figure 9 In this embodiment, a linkage device 370 is provided between the pressure roller assembly 350 and the guide assembly 360. The linkage device 370 enables the guide bracket 361 and the pressure roller bracket 351 to swing up and down synchronously. The synchronous swing design of the guide bracket 361 ensures that the relative position between the pressure roller assembly 350 and the guide assembly 360 always maintains a safe distance, thus avoiding interference with the guide assembly 360 during the lifting process of the pressure roller assembly 350.

[0087] Specifically, the linkage device 370 includes a first crossbar 371, a receiving plate 372, a second crossbar 373, a sleeve 374, a sliding block 375, and a support rod 376. The first crossbar 371 and the receiving plate 372 are respectively horizontally connected between the two pressure roller supports 351, with the receiving plate 372 located below the first crossbar 371. The receiving plate 372 is positioned facing the nonwoven fabric roll 400 and is used to receive and guide the end of the nonwoven fabric during roll changes or fabric breaks, preventing it from falling into the equipment.

[0088] The second crossbar 373 is horizontally fixed between the two guide brackets 361. The sleeve 374 is fixed on the second crossbar 373. The sliding block 375 is slidably installed on the first crossbar 371 and can slide freely along the axial direction of the first crossbar 371. The sleeve 374 and the sliding block 375 are fixedly connected by a rod 376, so that the pressure roller bracket 351 and the guide bracket 361 form a linkage constraint.

[0089] Through the sliding engagement of the first crossbar 371 and the sliding block 375, when the winding device 300 moves laterally along the axial direction of the winding shaft 310, the first crossbar 371 can move axially synchronously with the winding device 300. Specifically, the pressure roller bracket 351 is fixed on the base plate 340. When the base plate 340 moves laterally along the axial direction of the winding shaft 310, it drives the pressure roller bracket 351 to move laterally synchronously. The first crossbar 371 fixed on the pressure roller bracket 351 is driven to move laterally synchronously. This time, the sliding block 375 is fixedly connected to the sleeve 374 through the support rod 376. The sliding block 375 is slidably connected to the first crossbar 371, so that the first crossbar 371 can slide relative to the sliding block 375 to compensate for the axial displacement between it and the second crossbar 373, thereby realizing the axial displacement compensation of the pressure roller bracket 351 relative to the guide bracket 361.

[0090] Simultaneously, as the diameter of the nonwoven fabric roll 400 increases and the pressure roller bracket 351 swings upward around the pressure roller shaft 353, the first crossbar 371 moves upward synchronously with the pressure roller bracket 351, transmitting the motion to the sleeve 374 through the support rod 376. Since the sleeve 374 is fixed on the second crossbar 373, and the second crossbar 373 is fixed between the two guide brackets 361, the upward movement of the first crossbar 371 is rigidly transmitted through the support rod 376, the sleeve 374, and the second crossbar 373, ultimately causing the guide bracket 361 to rise synchronously. Conversely, when the diameter of the nonwoven fabric roll 400 decreases or a new roll is replaced, causing the pressure roller bracket 351 to swing downward, the guide bracket 361 also descends synchronously.

[0091] In this embodiment, the linkage device 370 adopts an axial sliding and vertical follow-up design, so that the linkage device 370 can safely limit the lifting of the pressure roller 352 without interfering with the normal axial reciprocating lateral movement of the winding device 300.

[0092] In this embodiment, the linkage device 370 enables the synchronous lifting and lowering of the guide bracket 361 along with the pressure roller bracket 351, maintaining a constant nonwoven fabric guide angle. As the diameter of the nonwoven fabric roll 400 increases, the surface position of the roll continuously rises. If the guide bracket 361 remains fixed, the angle at which the nonwoven fabric enters the take-up point from the guide roller 362 will continuously change, potentially causing tension fluctuations. The synchronous oscillation of the guide bracket 361 keeps the relative height difference between the guide roller 362 and the roll surface essentially constant, thereby maintaining a constant guide angle and contributing to tension stability.

[0093] refer to Figure 10The guiding device 200 includes a first guiding component and a second guiding component, which are arranged vertically in sequence along the conveying direction perpendicular to the nonwoven fabric. They are used to guide the slit multi-strip nonwoven fabric 410 to different winding stations. Specifically, the first guiding component guides a portion of the slit nonwoven fabric 410 downwards to the inlet component 360, where it is finally wound and wound by the current winding device 300. The second guiding component guides another portion of the slit nonwoven fabric 410 upwards or horizontally across the current winding device 300 and continues to convey it to the next set of nonwoven fabric winding and winding machines.

[0094] Through the diversion and guidance of the first and second guiding components, multiple sets of nonwoven fabric winding and winding machines can be sequentially distributed at each winding station along the direction of the nonwoven fabric conveying route. Each set of winding machines receives the nonwoven fabric strip 410 guided by the corresponding guiding component, realizing the parallel winding operation of multiple rolls of products on the same slitting production line.

[0095] Multiple sets of winding devices 300 are arranged sequentially along the conveyor route, which can simultaneously and independently wind up multiple nonwoven fabric strips 410 after slitting, realizing parallel operation of multiple rolls on one machine and greatly improving the winding capacity per unit time. Moreover, each set of winding devices 300 can independently control winding parameters (such as winding speed, tension, roll diameter, etc.), and simultaneously produce nonwoven fabric rolls 400 of different specifications or different roll diameters on the same production line to meet diverse order requirements.

[0096] By guiding the nonwoven fabric strips 410 in layers in the vertical and horizontal directions through the guide components, multiple sets of winding devices 300 are arranged sequentially along the conveying direction, so as to achieve an orderly arrangement of multi-station winding within the limited equipment space.

[0097] Specifically, the guiding device 200 includes a guide mounting frame 280, which is fixed above the support frame 120 and is used to support the first guiding component and the second guiding component.

[0098] refer to Figure 15 The first guide assembly includes a slitting roller group 210, a transition roller group 220, a gravity roller group 230, and a guide roller group 240 arranged sequentially along the conveying direction of the nonwoven fabric. The guide mounting frame 280 includes two vertical mounting plates 281, which are spaced apart along the width direction of the nonwoven fabric. A plurality of support shafts 282 or support beams 283 are arranged transversely between the two vertical mounting plates 281. The support shafts 282 are arranged sequentially along the conveying direction of the nonwoven fabric and are used to mount the roller components of the first guide assembly.

[0099] On the corresponding support shaft 282 or support beam 283, several groups of slitting rollers 210, transition rollers 220, gravity rollers 230, and guide rollers 240 can be distributed at different positions along their axial direction, with the number of each group of rollers corresponding to the others. That is, each group of slitting rollers 210 is matched with a group of transition rollers 220, a group of gravity rollers 230, and a group of guide rollers 240, which together form a complete nonwoven fabric guiding channel. According to the actual winding quantity requirements, the number of each group of rollers can be flexibly increased or decreased on the corresponding support shaft 282 or support beam 283 to adapt to the production requirements of nonwoven fabric rolls 400 of different specifications.

[0100] refer to Figure 11 The slitting roller assembly 210 is used to guide the slit nonwoven fabric strips 410 at a set interval. The slitting roller assembly 210 includes a first mounting base 211 and two adjusting rods 212. The two adjusting rods 212 are fixedly mounted on the first mounting base 211 at a certain included angle, forming a V-shaped guide opening. The first mounting base 211 passes through a corresponding support shaft 282 and can slide and adjust along the axial direction of the support shaft 282 to adapt to the guiding requirements of nonwoven fabric strips 410 with different widths or different slitting positions. The included angle between the two adjusting rods 212 is used to guide the nonwoven fabric strips 410 to a smooth transition, preventing the fabric edges from curling or deviating, and ensuring that each nonwoven fabric strip enters the subsequent roller assembly according to a preset path.

[0101] refer to Figure 12 The transition roller assembly 220 includes a transition guide roller 221, which is rotatably mounted on a corresponding support shaft 282. Two protruding rings 222 are radially protruding outwards on the roller body of the transition guide roller 221, with the two rings 222 spaced at a certain interval. The position of the protruding rings 222 along the axial direction of the transition guide roller 221 is adjustable (e.g., by locking with a top wire or positioning with a snap ring) to accommodate nonwoven fabric strips 410 of different widths. The nonwoven fabric passes through the gap between the two protruding rings 222, which is adapted to the width of the nonwoven fabric to ensure that the nonwoven fabric is confined within an effective width during transport and to prevent lateral movement.

[0102] refer to Figure 13The gravity roller assembly 230 includes a gravity roller 231 and a gravity support 232. The gravity support 232 is fixed to the corresponding support beam 283, and the gravity roller 231 is rotatably mounted on the gravity support 232. A tension sensing device 233 is provided between the gravity support 232 and the corresponding support beam 283. The tension sensing device 233 includes a tension / compression sensor. One end of the tension / compression sensor is connected to the gravity support 232, and the other end is connected to the support beam 283. It is used to detect in real time the tension exerted by the gravity roller 231 on the support beam 283 (i.e., the tension generated when the nonwoven fabric passes through the gravity roller 231). This detection signal can be fed back to the control system as an input parameter for closed-loop adjustment of the nonwoven fabric tension, thereby achieving precise control of the winding tension.

[0103] refer to Figure 13 The guide roller assembly 240 includes a guide bracket 241 and a plurality of guide rollers 242 rotatably mounted on the guide bracket 241. The guide bracket 241 is mounted on a corresponding support shaft 282 and rotatably connected to the support shaft 282. The guide bracket 241 can be adjusted by circumferential rotation around the support shaft 282 and is fixed to the support shaft 282 at a preset angle by a locking member 243. The locking member 243 preferably adopts a clamping hoop structure (such as an open clamp or a split clamping ring), and the circumferential angle between the guide bracket 241 and the support shaft 282 is fixed by bolt locking. By adjusting the circumferential angle of the guide bracket 241 around the support shaft 282, the wrap angle of the guide rollers 242 on the nonwoven fabric and the fabric exit direction can be changed, ensuring that the nonwoven fabric enters the inlet assembly 360 at the optimal inlet angle, avoiding fabric wrinkles or uneven tension caused by improper inlet angle.

[0104] In this embodiment, to avoid fabric defects such as folded edges and rolled edges during the winding process of nonwoven fabric, a folded edge detection device 250 is provided between the transition guide roller 221 and the gravity roller group 230. This device is used to detect the edge state of the nonwoven fabric strip 410 in real time during the conveying process and to feed the detection signal back to the control system.

[0105] refer to Figure 14Specifically, the flanging detection device 250 includes a support 251, a fixed U-plate 252, a guide rod 253, a slider 254, and a photoelectric sensor 255. The support 251 is slidably mounted on a corresponding support shaft 282 and can be adjusted along the axial direction of the support shaft 282 to adapt to the center position of the nonwoven strip 410 at different cutting positions. The fixed U-plate 252 is fixed below the support 251 and serves as the supporting base of the flanging detection device 250. The fixed U-plate 252 has two oppositely arranged side plates. The guide rod 253 is laterally fixed between the two side plates of the fixed U-plate 252 and serves as a sliding guide for the slider 254. Two sliders 254 are slidably connected to the guide rod 253. The two sliders 254 are arranged opposite each other (i.e., on both sides of the nonwoven fabric strip 410). A photoelectric sensor 255 is fixedly installed on each slider 254. The detection end of the photoelectric sensor 255 is set towards the nonwoven fabric strip 410. The two photoelectric sensors 255 adopt a through-beam detection method.

[0106] The sliding engagement between the slider 254 and the guide rod 253 is configured to allow free sliding along the axial direction of the guide rod 253 under external force, and to remain stationary in its current position when no external force is applied (e.g., through self-locking by friction or by locking with a set screw). By manually adjusting the gap between the two sliders 254 to match the width of the nonwoven fabric, it is ensured that the detection ends of the two photoelectric sensors 255 are aligned with the two edges of the nonwoven strip 410.

[0107] The nonwoven strip 410 passes between two photoelectric sensors 255. When the edge of the nonwoven strip 410 is turned up or folded, the thickness or position of the fabric edge changes, blocking or changing the light receiving state of the sensor. The photoelectric sensor 255 then sends a detection signal to the control system. The control system triggers an alarm or automatically adjusts the winding parameters based on the signal, thereby correcting fabric defects in a timely manner and ensuring the quality of the finished roll.

[0108] refer to Figure 15 The second guiding component includes several sets of guiding transition rollers 260 arranged sequentially along the nonwoven fabric conveying direction to form another nonwoven fabric guiding channel, which is used to continue to convey another part of the nonwoven fabric strip 410 that has passed the current winding device 300 after being cut to the next set of nonwoven fabric winding and winding machines.

[0109] The guide mounting frame 280 includes two transverse beams 284 extending laterally along the nonwoven fabric conveying direction, and several sets of guide transition rollers 260 are arranged at intervals along the extension direction of the transverse beams 284. The extension length of the transverse beams 284 corresponds to the position of each subsequent winding station to ensure that the nonwoven fabric strip 410 is smoothly conveyed to the next winding device 300 along the preset path.

[0110] Each guide transition roller assembly 260 includes a vertical support 261, a guide shaft 262, and transition rollers 263. The vertical support 261 is fixedly installed on the crossbeam 284, serving as the load-bearing base of the guide transition roller assembly 260. Each guide transition roller assembly 260 is provided with two vertical supports 261, which are respectively fixed on two crossbeams 284.

[0111] The guide shaft 262 is horizontally positioned between two vertical supports 261, with its two ends fixed to the vertical supports 261 on both sides. Several guide shafts 262 are evenly distributed along the vertical direction of the vertical supports 261, forming a multi-layer guide structure.

[0112] The transition roller 263 is rotatably mounted on the corresponding guide shaft 262 and can rotate freely around the guide shaft 262. Several transition rollers 263 are distributed at different positions along the axial direction of the same guide shaft 262. Along the same conveying path of the nonwoven fabric strip 410, the positions of the transition rollers 263 within several groups of guide transition rollers 260 correspond to each other. That is, for the same nonwoven fabric strip 410, the transition rollers 263 it passes through in the previous group of guide transition rollers 260, the transition rollers 263 it passes through in the next group of guide transition rollers 260, and so on, up to the Nth group of guide transition rollers 260, are all located on the same horizontal plane in space and maintain a consistent axial position. The number and position of each transition roller 263 correspond to the number of nonwoven fabric strips 410 being conveyed at the current workstation.

[0113] With multiple guide shafts 262 arranged at equal intervals on the vertical support 261, the nonwoven fabric strip 410 can be sequentially wound between the upper and lower multi-layer guide shafts 262 to form a multi-segment folding fabric path. This arrangement can extend the conveying path length of the nonwoven fabric within a limited horizontal space. At the same time, by adjusting the winding method, the contact wrap angle between the nonwoven fabric and the transition roller 263 is increased, which is conducive to the smooth transition of tension during the conveying process and avoids sudden tension changes caused by excessively short paths or sharp bends.

[0114] The second guiding component also includes a guide slitting roller group 270, which is located at the exit end or path turning point of the second guiding component. It is used to guide the nonwoven fabric strip 410 that has passed the current winding device 300 to the correct spacing so that it enters the next set of nonwoven fabric winding and winding machines in a neat arrangement.

[0115] The guide slitting roller group 270 has the same structure as the slitting roller group 210 in the first guide assembly. It also includes a second mounting base and two second adjusting rods 212 fixed at a certain angle to the second mounting base. The second mounting base is inserted on the corresponding support shaft 282 and its position is adjustable along the axial direction of the support shaft 282 to adapt to the guidance requirements of nonwoven strips 410 at different cutting positions.

[0116] refer to Figure 16 In this embodiment, by setting up a first guide component and a second guide component distributed vertically, the slit multi-strip nonwoven fabric 410 is diverted and guided in the vertical space. One part is guided into the current winding machine by the first guide component, while the other part is guided upwards or horizontally over the current winding machine by the second guide component and conveyed backwards to the next group of winding machines. Each group of winding machines can be arranged sequentially along the nonwoven fabric conveying direction to form a continuous multi-station parallel winding production line, realizing parallel winding operations of one machine for multiple rolls on the same slitting production line, which greatly improves the winding capacity per unit time.

[0117] The above description is merely a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial modifications made to the present invention by those skilled in the art within the scope of the technology disclosed in the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A nonwoven fabric winding and rewinding machine, characterized in that: It includes a frame consisting of a base and a support frame, a winding device mounted on the base, and a guiding device mounted on the support frame; The guiding device includes a first guiding component and a second guiding component; the first guiding component is disposed at the inlet end of the winding device and is used to guide a portion of the cut nonwoven strip into the winding device. The winding machine is configured to be arranged in multiple groups along the nonwoven fabric conveying direction, and the nonwoven fabric strip conveying between two adjacent groups of winding machines is guided by the second guide component; the second guide component is used to convey another part of the cut nonwoven fabric upward or horizontally over the current winding machine to the next group of winding machines. The winding device includes a winding shaft, a drive device, and a swing arm device. The two ends of the winding shaft are rotatably connected to the drive device and the swing arm device, respectively, and are suspended on the base by the support of the two. The winding shaft is used for winding non-woven fabric rolls. The swing arm device is detachably connected to the take-up shaft, and is used to release the constraint on the corresponding end of the take-up shaft after the finished roll is wound up, so as to remove the finished roll; the take-up shaft is configured to accommodate at least one set of finished rolls along its axial direction. The winding device is movably mounted on the base, and the winding device is configured to reciprocate relative to the base along the axial direction of the winding shaft; and by setting the movement speed of the winding device, the winding shaft can have one of two working modes: continuous winding and staged winding. A single winding machine can be configured to operate in either a continuous winding mode or a staged winding mode; multiple winding machines can operate in either one or both of these modes simultaneously.

2. The nonwoven fabric winding and rewinding machine according to claim 1, characterized in that: The winding device also includes a movable base plate, and the driving device and the swing arm device are both fixed to the base plate; The base plate is slidably disposed along the axial direction of the take-up shaft, and the base plate and the base are in sliding fit. The base plate and the base are connected by a moving drive assembly; the moving drive assembly is used to drive the base plate to slide relative to the base.

3. A nonwoven fabric winding and rewinding machine according to claim 2, characterized in that: The moving drive assembly includes a ball screw pair and a servo motor. The lead screw of the ball screw pair is connected to the output end of the servo motor, and the lead screw nut of the ball screw pair is fixed below the base plate. The base is provided with linear slide rails on both sides along the nonwoven fabric conveying direction, and the linear slide rails extend along the axial direction of the take-up shaft; a slide block is provided on the base plate at the position corresponding to the linear slide rail; the slide block slides on the linear slide rail.

4. A nonwoven fabric winding and rewinding machine according to claim 1, characterized in that: The second guiding assembly includes a set of guiding slitting rollers and several sets of guiding transition rollers; The guide slitting roller group is located at the outlet end or path turning point of the second guide assembly, and is used to guide the nonwoven fabric that has passed the current winding machine to the winding device corresponding to the next group of winding machines. A crossbeam extends along the nonwoven fabric conveying direction on the support frame, the crossbeam extending from the current winding machine to the next winding machine; several sets of guide transition rollers are distributed at intervals along the extension direction of the crossbeam. Each set of guide transition rollers includes several transition rollers that are vertically distributed perpendicular to the nonwoven fabric conveying route, and multiple transition rollers are coaxially arranged in the same plane and distributed at different positions along the width direction of the nonwoven fabric.

5. A nonwoven fabric winding and rewinding machine according to claim 1, characterized in that: The first guiding assembly consists of a slitting roller group, a transition roller group, a gravity roller group, and a guide roller group arranged sequentially along the conveying direction of the nonwoven fabric; A set of slitting rollers is matched with a set of transition rollers, a set of gravity rollers and a set of guide rollers to form a nonwoven fabric guide channel; An edge detection device is provided between the transition roller group and the gravity roller group. The edge detection device is used to detect the edge status of the nonwoven strip in real time during the conveying process. The flanging detection device includes two sets of photoelectric sensors arranged opposite each other along the width direction of the nonwoven fabric strip, with the detection end of the photoelectric sensors facing the nonwoven fabric strip; the interval between the two sets of photoelectric sensors is set to an adjustable structure.

6. A nonwoven fabric winding and rewinding machine according to claim 1, characterized in that: The winding device is also provided with a pressure roller assembly, which includes a pressure roller bracket, a pressure roller and a counterweight assembly. A support frame is provided on the base. The middle position of the pressure roller bracket is rotatably hinged to the support frame. The pressure roller bracket can swing relative to the support frame along the hinge end. The pressure roller is used to contact the surface of the nonwoven fabric roll. The pressure roller and the counterweight assembly are respectively fixed at opposite ends of the swing direction of the pressure roller bracket. The counterweight assembly provides adjustable clamping force to the pressure roller through the pressure roller bracket, so that the pressure roller always adheres to the surface of the nonwoven fabric roll with appropriate pressure when the diameter of the nonwoven fabric roll changes.

7. A nonwoven fabric winding and rewinding machine according to claim 6, characterized in that: The winding device includes an inlet component located at the inlet end of the winding device and at the outlet end of the first guide component; The import assembly includes an import bracket and at least two sets of import rollers, the import rollers being rotatably mounted on the import bracket; the middle position of the import bracket is rotatably hinged to the support frame; The guide roller is provided at one end of the two opposite ends of the swing direction of the guide bracket, and a tensioning component is provided at the other end. The tensioning component is used to adjust the swing angle of the guide bracket. The tensioning component is configured to adjust accordingly when the guide bracket swings up and down under the action of external force.

8. A nonwoven fabric winding and rewinding machine according to claim 7, characterized in that: A linkage device is provided between the pressure roller assembly and the inlet assembly. The pressure roller assembly swings in response to changes in the diameter of the nonwoven fabric. The pressure roller assembly drives the inlet assembly to swing in response through the linkage device. The pressure roller assembly is slidably connected to the linkage device, and the pressure roller assembly is configured to reciprocate relative to the linkage device along the axial direction of the take-up shaft.

9. A nonwoven fabric winding and rewinding machine according to claim 8, characterized in that: The linkage device includes a support rod and a sliding block, the pressure roller bracket includes a first crossbar, and the guide bracket includes a second crossbar. Both the first crossbar and the second crossbar are located on the side close to the nonwoven fabric roll. The sliding block is slidably connected to the first crossbar, and the two ends of the support rod are respectively fixed to the second crossbar and the sliding block; through the sliding engagement of the sliding block and the first crossbar, the pressure roller assembly can reciprocate relative to the linkage device along the axial direction of the winding shaft.

10. A nonwoven fabric winding and rewinding machine according to claim 1, characterized in that: The swing arm device includes a swing arm and a swing arm drive assembly. One end of the swing arm is provided with a connection structure for connecting to the take-up shaft. A support rod is provided on the base. The other end of the swing arm is hinged to the support rod, and a connecting piece extends from this end. The connecting piece is connected to the output end of the swing arm drive assembly. The connection structure includes a second cylinder and a bearing housing assembly. The bearing housing assembly is used to rotate with the take-up shaft. The output end of the second cylinder is connected to the bearing housing assembly and is used to drive the bearing housing assembly to slide along the axial direction of the take-up shaft so as to separate it from the take-up shaft or form a rotational connection. After the bearing housing assembly separates from the take-up shaft, the swing arm drive assembly drives the swing arm to swing away from the take-up shaft to unload the finished roll.

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