Anti-wrinkle multi-layer composite non-woven fabric cutting device and process thereof

Abstract

The application discloses a kind of anti-wrinkle multilayer composite non-woven fabric cutting device and process thereof, it is related to non-woven fabric cutting technical field, including bearing frame, discharge chute, flat rack, third motor and second threaded rod;The bearing frame is provided with anti-wrinkle mechanism, the anti-wrinkle mechanism includes flat rack, third motor, arch rod, push rod, threaded flattening roller, first material guide rod and second material guide rod, the first material guide rod and second material guide rod are arranged in flat rack inside, the threaded flattening roller is installed in flat rack inside, is set by flat rack, third motor, arch rod, push rod, the anti-wrinkle mechanism of threaded flattening roller of bidirectional screw thread structure, first material guide rod and second material guide rod on bearing frame, can be bidirectional tensioning to multilayer composite non-woven fabric, accurate limit guide is completed in cooperation with material guide rod, effectively eliminates cloth primary wrinkle from feeding link.

Description

Technical Field

[0001] This invention relates to the field of nonwoven fabric cutting technology, specifically to a wrinkle-resistant multilayer composite nonwoven fabric cutting device and its process. Background Technology

[0002] Multilayer composite nonwoven fabrics, with their advantages of soft texture, excellent breathability, high strength, and waterproof and antibacterial properties, are widely used in many fields such as medical and health care, household goods, packaging materials, and protective equipment. In actual production and processing, large rolls of multilayer composite nonwoven fabric need to be cut to a fixed length according to specifications. The flatness of the fabric before cutting directly determines the appearance quality and performance of the finished product. Currently, conventional nonwoven fabric cutting equipment on the market generally has obvious defects when processing multilayer composite nonwoven fabrics.

[0003] The nonwoven fabric production cutting equipment described in application number CN202410902873.5 belongs to the field of production cutting technology. This nonwoven fabric production cutting equipment includes an operating table. A first groove is fixedly connected inside the operating table. First motors are fixedly installed on both mutually distant sides of the operating table. A take-up shaft is fixedly installed at the output ends of both first motors. A pusher plate is slidably connected to the outer walls of both take-up shafts. Two first electric telescopic rods are fixedly installed inside the operating table. A second motor is fixedly installed on one side of the operating table. A fabric feeding shaft is fixedly installed at the output end of the second motor. An adjustment shaft is rotatably connected inside the operating table. This invention utilizes belt transmission to make the driven lead screw rotate synchronously, thereby driving the threaded slider to slide inside the operating table, which in turn causes the feed rod to move up and down, continuously tensioning and relaxing the nonwoven fabric, thus solving the wrinkle problem of nonwoven fabric. However, the anti-wrinkle capability of this device is limited and cannot handle complex wrinkles. It only relies on dynamic tension to offset tension-type wrinkles and has no ironing or lateral stretching structure. When facing multi-layer composite fabrics, fabrics with severe original wrinkles, or thick fabrics, the flattening effect is poor and it cannot eliminate lateral wrinkles and wrinkle rebound.

[0004] Based on this, this solution proposes "a wrinkle-resistant multilayer composite nonwoven fabric cutting device and its process" to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a wrinkle-resistant multilayer composite nonwoven fabric cutting device and its process, so as to solve the problems of ironing-free and lateral stretching structure of existing equipment in the market mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a wrinkle-resistant multilayer composite nonwoven fabric cutting device and its process, comprising a support frame, a discharge trough, a flattening frame, a third motor, and a second threaded rod;

[0007] The support frame is equipped with an anti-wrinkle mechanism, which includes a flattening frame, a third motor, an arched rod, a push rod, a threaded flattening roller, a first guide rod, and a second guide rod. The first and second guide rods are located inside the flattening frame, the threaded flattening roller is installed inside the flattening frame, the third motor is located on the side of the flattening frame, and the arched rod and push rod are located inside the flattening frame.

[0008] As a preferred embodiment of the present invention, a flattening frame is fixedly connected above the support frame, an arched rod is sandwiched between the flattening frames, a push rod is fixedly fixed parallel to the side of the arched rod, a third motor is fixedly connected to the side of the flattening frame, and a threaded flattening roller is fixedly connected to the output shaft of the third motor. The threaded flattening roller adopts a bidirectional threaded structure and is rotatably connected to the flattening frame. A first guide rod and a second guide rod are sandwiched between the flattening frames and are rotatably connected to the flattening frame. The first guide rod is positioned above and to the right of the second guide rod.

[0009] Using the above technical solution, a flattening frame is fixedly connected above the support frame, and arched rods and push rods are set between the flattening frames. A third motor drives the threaded flattening roller with a bidirectional thread structure to rotate. With the first and second guide rods arranged in a staggered manner, the multi-layer composite nonwoven fabric can be stretched and stretched in both directions, effectively eliminating transverse wrinkles of the fabric. At the same time, the guide rods can limit and guide the fabric to prevent material deviation, local accumulation and wrinkling, and ensure the uniformity and stability of the fabric flattening.

[0010] As a preferred technical solution of the present invention, the ironing rack is bolted to the upper surface of the support frame, the ironing rack is slidably connected to the lower part of the ironing rack, the bottom of the first guide rod is fixedly connected to the ironing plate, the ironing plate is provided with a steam pipe, the steam pipe is connected to a steam interface, and the first spring is fitted on the outside of the first guide rod.

[0011] Using the above technical solution, the ironing rack fixed on the upper surface of the support frame is equipped with a first guide rod, a first spring, and an ironing board with built-in steam pipes. External steam is introduced into the steam pipes through the steam interface to achieve constant temperature ironing and shaping. The first spring allows the ironing board to flexibly fit the surface of the non-woven fabric, which can not only thoroughly remove the fine wrinkles of the fabric and prevent the wrinkles from springing back, but also prevent hard compression from damaging the multi-layer composite non-woven fabric, and can also adapt to ironing operations of fabrics of different thicknesses.

[0012] As a preferred embodiment of the present invention, a conveyor frame is fixedly connected above the support frame, a second guide rod is slidably connected below the conveyor frame, a first pressing frame is fixedly connected below the second guide rod, a first threaded rod is threadedly connected above the first pressing frame, the first threaded rod is rotatably connected to the conveyor frame, a third drive roller is rotatably connected below the first pressing frame, a fourth motor is fixedly connected to the side of the first pressing frame, the output shaft of the fourth motor is fixedly connected to the third drive roller, the third drive roller is rotatably connected to the first pressing frame, a first motor is fixedly connected to the side of the conveyor frame, and the output shaft of the first motor is fixedly connected to the first drive roller.

[0013] Using the above technical solution, the height of the first lower pressure frame and the third drive roller can be flexibly adjusted by the second guide rod and the first threaded rod. The fourth motor drives the third drive roller and the first motor drives the first drive roller to operate in coordination. The two sets of rollers work together to clamp and convey the non-woven fabric. The material feeding tension is uniform and the conveying is stable. It can effectively avoid new wrinkles caused by slippage and uneven force during the conveying process. The lifting and guiding structure also ensures that the rollers run without deviation.

[0014] As a preferred embodiment of the present invention, the guide frame is bolted to the top of the support frame, the third guide rod is slidably connected to the bottom of the guide frame, the bottom of the third guide rod is fixedly connected to the guide pressure plate, the second spring is fitted on the top of the third guide rod, and there are four guide pressure plates distributed in parallel.

[0015] Using the above technical solution, the guide frame fixed above the support frame uses the third guide rod and the second spring to drive four parallel guide pressure plates to press down elastically. Multiple sets of guide pressure plates can flatten and limit the entire non-woven fabric in sections, effectively preventing problems such as curling edges, looseness, and local wrinkling of the fabric. The elastic pressing structure will not hinder the normal conveying of the fabric, and always keep the fabric in a flat and taut state, providing a reliable foundation for the subsequent cutting process.

[0016] As a preferred embodiment of the present invention, a cutting frame is fixedly connected above the support frame, the cutting frame is slidably connected to the fourth guide rod, a second pressing frame is fixedly connected below the fourth guide rod, a transducer is fixedly connected above the second pressing frame, two transducers are symmetrically distributed, a second threaded rod is threadedly connected above the second pressing frame, the second threaded rod is rotatably connected to the cutting frame, a fifth motor is fixedly connected to the side of the second pressing frame, the output shaft of the fifth motor is fixedly connected to the cutting roller, the cutting roller is rotatably connected to the second pressing frame, a second motor is fixedly connected to the side of the cutting frame, and the output shaft of the second motor is fixedly connected to the second drive roller;

[0017] Using the above technical solution, the cutting frame above the support frame can precisely adjust the pressing height of the second pressing frame and the cutting roller with the help of the fourth guide rod and the second threaded rod. The fifth motor drives the cutting roller and the second motor drives the second driving roller to complete the feeding and cutting. The symmetrically arranged transducers realize ultrasonic-assisted cutting, which has small cutting impact, flat cut without burrs, and will not pull the fabric to cause deformation and wrinkles. At the same time, it can meet the continuous cutting needs of non-woven fabrics with different layers and thicknesses, and significantly improves the work efficiency and finished product quality.

[0018] As a preferred embodiment of the present invention, the unloading groove is provided on the side of the support frame, and the unloading groove is inclined.

[0019] Using the above technical solution, a slanted unloading chute is opened on the side of the support frame. The finished non-woven fabric can be automatically unloaded and collected by its own weight along the unloading chute without the need for manual transfer, which reduces the intensity of manual labor. In addition, the slanted discharge method can avoid the fabric from stacking and rubbing against each other, which would cause secondary wrinkles and fully ensure the appearance quality of the finished non-woven fabric.

[0020] As a preferred technical solution of the present invention, the anti-wrinkle multi-layer composite nonwoven fabric cutting process includes the following steps: the multi-layer composite nonwoven fabric is sequentially passed over the arched rod and the push rod, and then passed under the threaded flattening roller, wrapped around the first guide rod, and passed under the second guide rod. Then, the third motor is started to drive the threaded flattening roller with a bidirectional thread structure to rotate, and the nonwoven fabric is stretched and flattened in both directions in conjunction with the arched rod and the push rod to initially eliminate the fabric wrinkles. The flattened nonwoven fabric is then transported to the bottom of the ironing rack. External steam is introduced into the ironing plate through the steam interface and steam pipe. Under the action of the first spring, the ironing plate flexibly adheres to the surface of the nonwoven fabric.

[0021] Using the above technical solution, the multi-layer composite nonwoven fabric is sequentially passed around the arched rod and the push rod, and then through the threaded flattening roller, the first guide rod, and the second guide rod to complete the regular feeding. The third motor is started to drive the threaded flattening roller to work with the arched rod and the push rod to complete the bidirectional stretching and flattening, initially removing the fabric wrinkles. Then the fabric is transported to the bottom of the ironing rack, and external steam enters the ironing board through the steam interface and steam pipe. Under the action of the first spring, the ironing board flexibly adheres to the fabric for heat setting. This dual treatment method eliminates the wrinkle problem of multi-layer composite nonwoven fabric from the source without damaging the fabric itself.

[0022] As a preferred technical solution of the present invention, the anti-wrinkle multi-layer composite nonwoven fabric cutting process involves starting the first motor and the fourth motor to drive the first drive roller and the third drive roller to operate respectively, rotating the first threaded rod to adjust the height of the first lower pressure frame, so that the third drive roller cooperates with the first drive roller to clamp and convey the nonwoven fabric, and the flat nonwoven fabric enters the guide frame area. The four parallel guide pressure plates press the fabric width under the action of the second spring and the third guide rod.

[0023] Using the above technical solution, the first motor and the fourth motor are started to drive the first drive roller and the third drive roller to operate respectively. The height of the first lower pressure frame is adjusted by rotating the first threaded rod, so that the two sets of drive rollers can stably clamp and convey the nonwoven fabric. The flattened fabric enters the guide frame area. The four parallel guide pressure plates continuously press the fabric surface under the action of the second spring and the third guide rod, effectively preventing the fabric from shifting, warping and wrinkling during the conveying transition stage, and ensuring that the fabric enters the cutting station in a flat state.

[0024] As a preferred technical solution of the present invention, the anti-wrinkle multilayer composite nonwoven fabric cutting process involves starting the second motor and the fifth motor to drive the second drive roller and the cutting roller to rotate respectively, rotating the second threaded rod to adjust the pressing height of the second pressing frame, cooperating with the transducer to achieve ultrasonic-assisted cutting, the drive roller group to continuously feed the material, the cutting roller to continuously cut the nonwoven fabric according to the set size, and the finished nonwoven fabric after cutting slides down the unloading groove set at an incline on the side of the support frame to complete the unloading and collection of the finished product;

[0025] Using the above technical solution, the second motor and the fifth motor are started to drive the second drive roller and the cutting roller to operate respectively. The second threaded rod is rotated to adjust the pressing height of the second pressing frame. Combined with the transducer, ultrasonic continuous cutting is realized. The drive roller group feeds material continuously and at a uniform speed. The cutting roller completes the slitting operation according to the specifications. The cut non-woven fabric is automatically collected by sliding down the unloading groove placed obliquely on the side of the support frame. The whole process has a high degree of automation. No new wrinkles are generated during the cutting process. The cutting accuracy of the finished product and the overall yield rate are significantly improved.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. An anti-wrinkle mechanism consisting of a flattening frame, a third motor, an arched rod, a push rod, a threaded flattening roller with a bidirectional thread structure, a first guide rod, and a second guide rod is installed on the support frame. This mechanism can stretch and expand the multi-layer composite nonwoven fabric in both directions. In conjunction with the guide rod, it can achieve precise limiting and guidance, effectively eliminating the original wrinkles of the fabric from the feeding stage, avoiding material deviation and local accumulation and wrinkling, and ensuring the flatness of the fabric in the early stage of conveying.

[0028] 2. The ironing rack mounted on the support frame is equipped with an ironing board, a first spring, a first guide rod, a steam interface and a steam pipe. It can use steam to heat-set the flattened non-woven fabric. The first spring enables the ironing board to flexibly adhere to the fabric, which can thoroughly remove fine wrinkles and prevent wrinkles from springing back, without squeezing or damaging the multi-layer composite fabric. It can also adapt to the processing needs of fabrics of different thicknesses.

[0029] 3. The conveyor frame and guide frame are connected in sequence. The first and fourth motors drive the first and third drive rollers to form a stable clamping and conveying structure. The conveying and pressing force can be flexibly adjusted by the first threaded rod. At the same time, the four parallel guide plates flatten the fabric in sections under the action of the second spring and the third guide rod, constraining the shape of the fabric throughout the process and preventing warping, loosening and secondary wrinkling during the conveying transition.

[0030] 4. The cutting frame integrates components such as the second motor, the fifth motor, the second drive roller, the cutting roller, and the transducer. It adjusts the height of the second lower pressure frame by relying on the fourth guide rod and the second threaded rod. Combined with the transducer, it realizes ultrasonic-assisted cutting. The cutting force is gentle, the cut is flat and without burrs, and it will not pull the fabric to cause deformation. It can meet the continuous cutting operation of non-woven fabrics of different specifications, and the processing quality and operation efficiency are greatly improved.

[0031] 5. The side of the support frame is equipped with an inclined unloading chute, which allows the finished non-woven fabric to slide down automatically under its own weight for collection without the need for manual transfer, thus reducing labor costs. At the same time, the inclined discharge method can avoid the fabric from stacking and rubbing against each other, which can cause new wrinkles. The whole set of equipment realizes the integrated operation of flattening, ironing, conveying, cutting and unloading, and controls the generation of wrinkles throughout the process. The overall practicality and finished product yield are significantly better than traditional equipment. Attached Figure Description

[0032] Figure 1 This is a side view of the structure of the present invention;

[0033] Figure 2 This is a schematic diagram of the flattening frame and conveyor frame structure of the present invention;

[0034] Figure 3 This is a front view structural diagram of the present invention;

[0035] Figure 4 This is a schematic diagram of the right-side structure of the present invention;

[0036] Figure 5 This is a schematic diagram of the structure of the second motor and the second drive roller of the present invention;

[0037] Figure 6 This is a schematic diagram of the guide plate and the third guide rod structure of the present invention;

[0038] Figure 7 This is a schematic diagram of the structure of the first motor and the first drive roller of the present invention;

[0039] Figure 8 This is a schematic diagram of the ironing board and the first spring structure of the present invention;

[0040] Figure 9 This is a schematic diagram of the cross-sectional structure of the ironing board of the present invention;

[0041] Figure 10 This is a schematic diagram of the arched rod and push rod structure of the present invention.

[0042] In the diagram: 1. Support frame; 2. Unloading chute; 3. Flattening frame; 301. Third motor; 302. Arched rod; 303. Push rod; 304. Threaded flattening roller; 305. First guide rod; 306. Second guide rod; 4. Ironing rack; 401. Ironing board; 402. First spring; 403. First guide rod; 404. Steam interface; 405. Steam pipe; 5. Conveyor frame; 501. First motor; 502. First drive roller; 503. Third... Four motors; 504, third drive roller; 505, first lower pressure frame; 506, second guide rod; 507, first threaded rod; 6, guide frame; 601, guide pressure plate; 602, third guide rod; 603, second spring; 7, cutting frame; 701, second motor; 702, second drive roller; 703, fifth motor; 704, cutting roller; 705, second lower pressure frame; 706, transducer; 707, fourth guide rod; 708, second threaded rod. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Please see Figure 1-10 The technical solution of this invention is: a wrinkle-resistant multi-layer composite nonwoven fabric cutting device and its process; comprising a support frame 1, a discharge trough 2, a flattening frame 3, a third motor 301, an arched rod 302, a pushing rod 303, a threaded flattening roller 304, a first guide rod 305, a second guide rod 306, an ironing frame 4, an ironing plate 401, a first spring 402, a first guide rod 403, a steam interface 404, a steam pipe 405, a conveyor frame 5, and a first motor 501. The components include: first drive roller 502, fourth motor 503, third drive roller 504, first lower pressure frame 505, second guide rod 506, first threaded rod 507, guide frame 6, guide pressure plate 601, third guide rod 602, second spring 603, cutting frame 7, second motor 701, second drive roller 702, fifth motor 703, cutting roller 704, second lower pressure frame 705, transducer 706, fourth guide rod 707, and second threaded rod 708.

[0045] The support frame 1 is equipped with an anti-wrinkle mechanism, which includes a flattening frame 3, a third motor 301, an arched rod 302, a push rod 303, a threaded flattening roller 304, a first guide rod 305, and a second guide rod 306. The first guide rod 305 and the second guide rod 306 are located inside the flattening frame 3. The threaded flattening roller 304 is installed inside the flattening frame 3. The third motor 301 is located on the side of the flattening frame 3. The arched rod 302 and the push rod 303 are located inside the flattening frame 3.

[0046] A flattening frame 3 is fixedly connected above the support frame 1. An arched rod 302 is sandwiched between the flattening frames 3. A push rod 303 is fixed parallel to the side of the arched rod 302. A third motor 301 is fixedly connected to the side of the flattening frame 3. The output shaft of the third motor 301 is fixedly connected to a threaded flattening roller 304. The threaded flattening roller 304 adopts a bidirectional thread structure and is rotatably connected to the flattening frame 3. A first guide rod 305 and a second guide rod 306 are sandwiched between the flattening frames 3. The first guide rod 305 and the second guide rod 306 are rotatably connected to the flattening frame 3. 305 is positioned above the right side of the second guide rod 306. The flattening frame 3 is fixedly connected above the support frame 1. An arched rod 302 and a push rod 303 are set between the flattening frames 3. The third motor 301 drives the threaded flattening roller 304 with a bidirectional thread structure to rotate. In conjunction with the staggered arrangement of the first guide rod 305 and the second guide rod 306, the multi-layer composite nonwoven fabric can be stretched and stretched in both directions, effectively eliminating transverse wrinkles in the fabric. At the same time, the guide rods can limit and guide the fabric to prevent material deviation, local accumulation and wrinkling, and ensure the uniformity and stability of the fabric flattening.

[0047] The ironing rack 4 is bolted to the upper surface of the support frame 1. The ironing rack 4 is slidably connected to the lower part of the first guide rod 403. The ironing plate 401 is fixedly connected to the bottom of the first guide rod 403. A steam pipe 405 is opened in the ironing plate 401. The steam pipe 405 is connected to the steam interface 404. A first spring 402 is fitted on the outside of the first guide rod 403. The ironing rack 4 fixed to the upper surface of the support frame 1 is equipped with the first guide rod 403, the first spring 402 and the ironing plate 401 with built-in steam pipe 405. External steam is introduced into the steam pipe 405 through the steam interface 404 to achieve constant temperature ironing and shaping. The first spring 402 allows the ironing plate 401 to flexibly fit the surface of the non-woven fabric, which can not only completely remove the fine wrinkles of the fabric and avoid wrinkle rebound, but also prevent hard compression from damaging the multi-layer composite non-woven fabric. It can also adapt to ironing operations of fabrics of different thicknesses.

[0048] A conveyor frame 5 is fixedly connected above the support frame 1. A second guide rod 506 is slidably connected below the conveyor frame 5. A first pressing frame 505 is fixedly connected below the second guide rod 506. A first threaded rod 507 is threadedly connected above the first pressing frame 505. The first threaded rod 507 is rotatably connected to the conveyor frame 5. A third drive roller 504 is rotatably connected below the first pressing frame 505. A fourth motor 503 is fixedly connected to the side of the first pressing frame 505. The output shaft of the fourth motor 503 is fixedly connected to the third drive roller 504. The third drive roller 504 is rotatably connected to the first pressing frame 505. The side of the conveyor frame 5 is fixedly connected to the third drive roller 504. The first motor 501 is fixedly connected, and the output shaft of the first motor 501 is fixedly connected to the first drive roller 502. The conveyor frame 5 above the support frame 1 can flexibly adjust the height of the first lower pressure frame 505 and the third drive roller 504 through the second guide rod 506 and the first threaded rod 507. The fourth motor 503 drives the third drive roller 504 and the first motor 501 drives the first drive roller 502 to operate in coordination. The two sets of rollers cooperate to clamp and convey the non-woven fabric. The material feeding tension is uniform and the conveying is stable. It can effectively avoid new wrinkles caused by slippage and uneven force during the conveying process. The lifting guide structure also ensures that the rollers run without deviation.

[0049] The guide frame 6 is bolted to the top of the support frame 1. The third guide rod 602 is slidably connected to the bottom of the guide frame 6. The bottom of the third guide rod 602 is fixedly connected to the guide pressure plate 601. The second spring 603 is mounted on the top of the third guide rod 602. There are four parallel guide pressure plates 601. The guide frame 6 fixed above the support frame 1 uses the third guide rod 602 and the second spring 603 to drive the four parallel guide pressure plates 601 to press down elastically. The multiple sets of guide pressure plates 601 can flatten and limit the entire non-woven fabric in sections, effectively preventing problems such as curling edges, looseness, and local wrinkling of the fabric. The elastic pressing structure will not hinder the normal conveying of the fabric and always keep the fabric in a flat and taut state, providing a reliable foundation for the subsequent cutting process.

[0050] A cutting frame 7 is fixedly connected above the support frame 1. The cutting frame 7 is slidably connected to the fourth guide rod 707. A second pressing frame 705 is fixedly connected below the fourth guide rod 707. A transducer 706 is fixedly connected above the second pressing frame 705. Two transducers 706 are symmetrically distributed. A second threaded rod 708 is threadedly connected above the second pressing frame 705. The second threaded rod 708 is rotatably connected to the cutting frame 7. A fifth motor 703 is fixedly connected to the side of the second pressing frame 705. The output shaft of the fifth motor 703 is fixedly connected to the cutting roller 704. The cutting roller 704 is rotatably connected to the second pressing frame 705. A second motor is fixedly connected to the side of the cutting frame 7. 701, the output shaft of the second motor 701 is fixedly connected to the cutting frame 7 above the second drive roller 702 and the support frame 1. With the help of the fourth guide rod 707 and the second threaded rod 708, the pressing height of the second pressing frame 705 and the cutting roller 704 can be precisely adjusted. The fifth motor 703 drives the cutting roller 704 and the second motor 701 drives the second drive roller 702 to complete the feeding and cutting. The symmetrically arranged transducers 706 realize ultrasonic-assisted cutting, which has a small cutting impact, a flat cut without burrs, and will not pull the fabric to cause deformation and wrinkles. At the same time, it can meet the continuous cutting needs of non-woven fabrics with different layers and thicknesses, and greatly improves the work efficiency and finished product quality.

[0051] The support frame 1 has a discharge chute 2 on its side. The discharge chute 2 is inclined. The finished non-woven fabric can be automatically discharged and collected by its own weight along the discharge chute 2 without the need for manual transfer, which reduces the intensity of manual labor. The inclined discharge method can also avoid the fabric from stacking and rubbing against each other and causing secondary wrinkles, thus fully ensuring the appearance quality of the finished non-woven fabric.

[0052] A wrinkle-resistant multi-layer composite nonwoven fabric cutting process includes the following steps: The multi-layer composite nonwoven fabric is sequentially passed over an arched rod 302 and a pushing rod 303, then through a threaded flattening roller 304, around a first guide rod 305, and through a second guide rod 306. A third motor 301 is then started to drive the threaded flattening roller 304 with a bidirectional thread structure, working in conjunction with the arched rod 302 and the pushing rod 303 to stretch and flatten the nonwoven fabric bidirectionally, initially eliminating wrinkles. The flattened nonwoven fabric is then conveyed to the ironing rack 4. External steam is introduced into the ironing plate 401 through a steam interface 404 and a steam pipe 405. Under the action of a first spring 402, the ironing plate 401 gently... The multi-layer composite nonwoven fabric is bonded to the surface of the nonwoven fabric and then passed through the arched rod 302, the push rod 303, the threaded flattening roller 304, the first guide rod 305, and the second guide rod 306 to complete the regular feeding. The third motor 301 is started to drive the threaded flattening roller 304 to work with the arched rod 302 and the push rod 303 to complete the bidirectional stretching and flattening, initially removing the wrinkles of the fabric. Then the fabric is transported to the bottom of the ironing rack 4. External steam enters the ironing plate 401 through the steam interface 404 and the steam pipe 405. Under the action of the first spring 402, the ironing plate 401 flexibly bonds to the fabric for heat setting. The dual treatment method eliminates the wrinkle problem of the multi-layer composite nonwoven fabric from the source without damaging the fabric itself.

[0053] The first motor 501 and the fourth motor 503 are started to drive the first drive roller 502 and the third drive roller 504 to operate respectively. The first threaded rod 507 is rotated to adjust the height of the first lower pressure frame 505, so that the third drive roller 504 cooperates with the first drive roller 502 to clamp and convey the non-woven fabric. The flat non-woven fabric enters the guide frame 6 area. The four parallel guide pressure plates 601 are pressed against the fabric surface under the action of the second spring 603 and the third guide rod 602. The first motor 501 and the fourth motor 503 are started to drive the first drive roller 502 and the third drive roller 504 to operate respectively. The first threaded rod 507 is rotated to adjust the height of the first lower pressure frame 505, so that the two sets of drive rollers stably clamp and convey the non-woven fabric. The flat fabric enters the guide frame 6 area. The four parallel guide pressure plates 601 are continuously pressed against the fabric surface under the action of the second spring 603 and the third guide rod 602, which effectively prevents the fabric from shifting, warping and wrinkling during the conveying transition stage, and ensures that the fabric enters the cutting station in a flat state.

[0054] The second motor 701 and the fifth motor 703 are started to drive the second drive roller 702 and the cutting roller 704 to rotate respectively. The second threaded rod 708 is rotated to adjust the pressing height of the second pressing frame 705. In conjunction with the transducer 706, ultrasonic-assisted cutting is achieved. The drive roller group continuously feeds the material, and the cutting roller 704 continuously cuts the non-woven fabric according to the set size. The cut finished non-woven fabric slides down the unloading chute 2, which is inclined on the side of the support frame 1, to complete the unloading and collection of the finished product. The second motor 701 and the fifth motor 703 are started. Machine 703 drives the second drive roller 702 and the cutting roller 704 to operate respectively. The second threaded rod 708 is rotated to adjust the pressing height of the second pressing frame 705. Combined with the transducer 706, ultrasonic continuous cutting is realized. The drive roller group feeds material continuously and at a uniform speed. The cutting roller 704 completes the slitting operation according to the specifications. The cut non-woven fabric is automatically collected by sliding down the unloading groove 2 placed obliquely on the side of the support frame 1. The whole process has a high degree of automation. No new wrinkles are generated during the cutting process. The cutting accuracy of the finished product and the overall yield rate are significantly improved.

[0055] Working principle: A wrinkle-resistant multi-layer composite nonwoven fabric cutting device and its process involve sequentially passing the multi-layer composite nonwoven fabric over the arched rod 302 and the pushing rod 303, passing it under the threaded flattening roller 304, then over the first guide rod 305, and exiting under the second guide rod 306. The third motor 301 is started, driving the threaded flattening roller 304 with its bidirectional threaded structure to rotate. This, in conjunction with the arched rod 302 and the pushing rod 303, stretches and flattens the nonwoven fabric bidirectionally, initially eliminating wrinkles. The flattening frame 3 provides installation support for the entire flattening assembly. The first guide rod 305 and the second guide rod 306 limit and guide the fabric, preventing deviation and localized accumulation and wrinkling.

[0056] The flattened non-woven fabric is conveyed to the bottom of the ironing rack 4, and external steam is introduced into the steam pipe 405 through the steam interface 404 to keep the ironing plate 401 at a constant temperature. Under the elastic force of the first spring 402, the first guide rod 403 drives the ironing plate 401 to flexibly fit against the surface of the non-woven fabric, ironing and shaping the fabric, thoroughly removing fine wrinkles and preventing wrinkles from springing back, while avoiding hard compression that could damage the fabric.

[0057] The fabric enters the conveyor frame 5 area. The first threaded rod 507 is rotated, and the overall height of the first lower pressure frame 505 is adjusted via the second guide rod 506, thereby adjusting the pressure between the third drive roller 504 and the fabric. The first motor 501 is started to drive the first drive roller 502, and simultaneously the fourth motor 503 is started to drive the third drive roller 504 to rotate synchronously. The two sets of rollers cooperate to clamp and convey the non-woven fabric, ensuring uniform material tension and smooth conveying, and preventing secondary wrinkles during the conveying process.

[0058] After being conveyed horizontally, the nonwoven fabric enters the guide frame 6. The second spring 603, mounted on the outer side of the third guide rod 602, provides elastic pressure, driving four sets of parallel guide pressure plates 601 to press down and tighten the fabric surface. The multiple sets of guide pressure plates 601 limit the movement of the entire nonwoven fabric in sections, effectively preventing the fabric from curling, loosening, or wrinkling in certain areas, ensuring that the fabric always remains flat and taut.

[0059] The flat fabric is fed into the cutting frame 7. The second threaded rod 708 is rotated, and the pressing height of the second lower pressing frame 705 and the lower cutting roller 704 is adjusted with the help of the fourth guide rod 707. The second motor 701 is started to drive the second drive roller 702 to continuously feed the material forward, and at the same time the fifth motor 703 is started to drive the cutting roller 704 to rotate. The two transducers 706 symmetrically installed on the second lower pressing frame 705 work together to realize ultrasonic-assisted cutting. The cutting force is gentle, the cut is flat, and the fabric will not be stretched, causing deformation or wrinkling, thus completing the continuous fixed-length cutting of non-woven fabric.

[0060] The cut nonwoven fabric automatically slides down the inclined unloading chute 2 on the side of the support frame 1 under its own weight, completing the unloading and collection of the finished product. The inclined unloading chute 2 can avoid the stacking and friction of the finished fabric, and prevent the formation of new wrinkles.

[0061] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0062] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wrinkle-resistant multilayer composite nonwoven fabric cutting device, comprising a support frame (1); characterized in that: The support frame (1) is provided with an anti-wrinkle mechanism, which includes a flattening frame (3), a third motor (301), an arched rod (302), a push rod (303), a threaded flattening roller (304), a first guide rod (305), and a second guide rod (306). The first guide rod (305) and the second guide rod (306) are located inside the flattening frame (3). The threaded flattening roller (304) is installed inside the flattening frame (3). The third motor (301) is located on the side of the flattening frame (3). The arched rod (302) and the push rod (303) are located inside the flattening frame (3).

2. The anti-wrinkle multilayer composite nonwoven fabric cutting device according to claim 1, characterized in that, The support frame (1) is fixedly connected to the flattening frame (3). An arched rod (302) is sandwiched between the flattening frames (3). A push rod (303) is fixed parallel to the side of the arched rod (302). A third motor (301) is fixedly connected to the side of the flattening frame (3). The output shaft of the third motor (301) is fixedly connected to a threaded flattening roller (304). The threaded flattening roller (304) adopts a bidirectional thread structure. The threaded flattening roller (304) is rotatably connected to the flattening frame (3). A first guide rod (305) and a second guide rod (306) are sandwiched between the flattening frames (3). The first guide rod (305) and the second guide rod (306) are rotatably connected to the flattening frame (3). The first guide rod (305) is positioned above and to the right of the second guide rod (306).

3. The anti-wrinkle multilayer composite nonwoven fabric cutting device according to claim 2, characterized in that, The ironing rack (4) is bolted to the upper surface of the support frame (1). The ironing rack (4) is slidably connected to the lower part of the first guide rod (403). The bottom of the first guide rod (403) is fixedly connected to the ironing plate (401). A steam pipe (405) is opened in the ironing plate (401). The steam pipe (405) is connected to the steam interface (404). A first spring (402) is fitted on the outside of the first guide rod (403).

4. The anti-wrinkle multilayer composite nonwoven fabric cutting device according to claim 3, characterized in that, The support frame (1) is fixedly connected to the upper part of the conveyor frame (5), and the lower part of the conveyor frame (5) is slidably connected to the lower part of the second guide rod (506). The lower part of the second guide rod (506) is fixedly connected to the lower part of the first pressure frame (505). The upper part of the first pressure frame (505) is threadedly connected to the first threaded rod (507). The first threaded rod (507) is rotatably connected to the conveyor frame (5). The lower part of the first pressure frame (505) is rotatably connected to the lower part of the third drive roller (504). The side of the first pressure frame (505) is fixedly connected to the fourth motor (503). The output shaft of the fourth motor (503) is fixedly connected to the third drive roller (504). The third drive roller (504) is rotatably connected to the first pressure frame (505). The side of the conveyor frame (5) is fixedly connected to the first motor (501). The output shaft of the first motor (501) is fixedly connected to the first drive roller (502).

5. The anti-wrinkle multilayer composite nonwoven fabric cutting device according to claim 4, characterized in that, The guide frame (6) is bolted on the top of the support frame (1), and the third guide rod (602) is slidably connected below the guide frame (6). The bottom of the third guide rod (602) is fixedly connected to the guide pressure plate (601). The second spring (603) is fitted on the top of the third guide rod (602). There are four guide pressure plates (601) distributed in parallel.

6. The anti-wrinkle multilayer composite nonwoven fabric cutting device according to claim 5, characterized in that, The cutting frame (7) is fixedly connected above the support frame (1). The cutting frame (7) is slidably connected to the fourth guide rod (707). The second pressure frame (705) is fixedly connected below the fourth guide rod (707). The transducer (706) is fixedly connected above the second pressure frame (705). There are two transducers (706) symmetrically distributed. The second threaded rod (708) is threadedly connected above the second pressure frame (705). The second threaded rod (708) is rotatably connected to the cutting frame (7). The fifth motor (703) is fixedly connected to the side of the second pressure frame (705). The output shaft of the fifth motor (703) is fixedly connected to the cutting roller (704). The cutting roller (704) is rotatably connected to the second pressure frame (705). The second motor (701) is fixedly connected to the side of the cutting frame (7). The output shaft of the second motor (701) is fixedly connected to the second drive roller (702).

7. The anti-wrinkle multilayer composite nonwoven fabric cutting device according to claim 6, characterized in that, The support frame (1) has a discharge chute (2) on its side, and the discharge chute (2) is inclined.

8. The anti-wrinkle multilayer composite nonwoven fabric cutting process according to any one of claims 1-7, characterized in that, The process includes the following steps: the multi-layer composite nonwoven fabric is passed over the arched rod (302) and the push rod (303) in sequence, and passes under the threaded flattening roller (304), and then around the first guide rod (305), and passes under the second guide rod (306). Then, the third motor (301) is started to drive the threaded flattening roller (304) with a bidirectional thread structure to rotate. The arched rod (302) and the push rod (303) are used to stretch and flatten the nonwoven fabric in both directions, initially eliminating the wrinkles in the fabric. The flattened nonwoven fabric is then transported to the ironing rack (4) below. External steam is introduced into the ironing plate (401) through the steam interface (404) and the steam pipe (405). Under the action of the first spring (402), the ironing plate (401) flexibly adheres to the surface of the nonwoven fabric.

9. The anti-wrinkle multilayer composite nonwoven fabric cutting process according to claim 8, characterized in that, The first motor (501) and the fourth motor (503) are started to drive the first drive roller (502) and the third drive roller (504) to run respectively. The first threaded rod (507) is rotated to adjust the height of the first lower pressure frame (505), so that the third drive roller (504) cooperates with the first drive roller (502) to clamp and transport the non-woven fabric. The flat non-woven fabric enters the guide frame (6) area. The four parallel guide pressure plates (601) press the fabric width under the action of the second spring (603) and the third guide rod (602).

10. The anti-wrinkle multilayer composite nonwoven fabric cutting process according to claim 9, characterized in that, The second motor (701) and the fifth motor (703) are started to drive the second drive roller (702) and the cutting roller (704) to rotate respectively. The second threaded rod (708) is rotated to adjust the pressing height of the second pressing frame (705). Ultrasonic assisted cutting is achieved in conjunction with the transducer (706). The drive roller group continuously feeds the material. The cutting roller (704) continuously cuts the non-woven fabric according to the set size. The finished non-woven fabric after cutting slides down the unloading groove (2) set on the side of the support frame (1) to complete the unloading and collection of the finished product.

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