Spunlace type non-woven fabric bottom on-line tightening device

Abstract

The invention relates to the field of non-woven fabric production, in particular to a spunlace type non-woven fabric bottom online tightening device which comprises a spreading module arranged at the feeding end of a spunlace module of non-woven fabric and used for uniformly scattering the bottom of the non-woven fabric, and a tightening module arranged at the discharging end of the spunlace module and used for uniformly spreading the bottom of the non-woven fabric. The two ends of the spunlace module are further provided with hot pressing units corresponding to the spreading module and the compacting module in position. According to the spunlace type non-woven fabric bottom on-line tightening device, the bottom of a non-woven fabric can be moderately heated before and after spunlace, threads wound into a cluster are scattered before spunlace, the bottoms with non-uniform thicknesses are slightly diffused, meanwhile, fibers with different thicknesses at the bottom of the non-woven fabric can be uniformly scraped and swept, and the non-woven fabric bottom on-line tightening device can be used for tightening the non-woven fabric. Gas impact and high-frequency vibration and extrusion can be performed on the bottom of the non-woven fabric after spunlace, so that uniform pressure is applied to the bottom of the non-woven fabric, and fibers are tightly interwoven together.

Description

Technical Field

[0001] The invention relates to the field of nonwoven fabric production, in particular to an online compacting device for the bottom of a spunlace nonwoven fabric. Background Art

[0002] Spunlace nonwoven fabric is a special nonwoven material. Its production principle is to spray high-pressure fine water flow onto one or more layers of fiber webs to entangle the fibers with each other, thereby reinforcing the fiber web and giving it a certain strength. The resulting fabric is spunlace nonwoven fabric.

[0003] During the spunlace process, water tends to bounce back from the bottom of the spunlace nonwoven fabric, resulting in the fibers at the bottom not being interwoven tightly enough, with a high porosity, low strength, and a large deformation rate and curvature. At the same time, the fibers tend to gather in one part, resulting in a low contact frequency between the fibers in other parts and the needle plate, resulting in uneven thickness. This ultimately results in poor quality of the finished nonwoven fabric, affecting the overall quality and performance of the nonwoven fabric. Therefore, how to overcome the above-mentioned technical problems and defects has become a key issue that needs to be addressed. Summary of the invention

[0004] The object of the present invention is to overcome the defects described in the background technology, thereby realizing an online compacting device for the bottom of a spunlace non-woven fabric, which can moderately heat the bottom of the non-woven fabric before and after spunlacement, and break up the tangled threads before spunlacement, and slightly diffuse the bottom with uneven thickness, while scraping the fibers of different thicknesses on the bottom of the non-woven fabric evenly, and can perform gas impact, high-frequency vibration and extrusion on the bottom of the non-woven fabric after spunlacement, thereby applying uniform pressure to the bottom of the non-woven fabric and tightly interweaving the fibers together.

[0005] To achieve the above-mentioned invention object, the technical solution of the present invention is: an online compacting device for the bottom of a spunlaced nonwoven fabric, comprising a flattening module arranged at the feeding end of a nonwoven spunlaced module for evenly breaking up the bottom of the nonwoven fabric. A compacting module arranged at the discharge end of the spunlaced module for evenly spreading the bottom of the nonwoven fabric. Both ends of the spunlaced module are also provided with hot pressing units corresponding to the positions of the flattening module and the compacting module.

[0006] In the above-mentioned spunlace nonwoven bottom in-line compacting device, the flattening module includes a flattening box arranged at the feed end. The top of the flattening box is provided with at least one group of flattening frames that can circulate and move perpendicularly to the width direction of the nonwoven fabric, and the flattening box is provided with a flattening mechanism that drives the flattening frames to move.

[0007] In the above-mentioned spunlaced nonwoven bottom line compacting device, a plurality of scraping rods are horizontally arranged on the flattening frame, and the front end of the scraping rods is in an arc-shaped structure. The top end of the scraping rods is provided with a resistance part for increasing the friction force on the nonwoven fabric. The bottom of the nonwoven fabric before spunlaced can be scraped and swept to break up the tangled threads, and the thickness of the bottom can be scraped and swept to be uniform, thereby ensuring the uniformity of the thickness of the nonwoven fabric after subsequent spunlaced.

[0008] In the above-mentioned spunlace nonwoven bottom in-line compacting device, the flattening mechanism includes an active plate and a driven plate respectively fixedly arranged at the two ends of the flattening frame. The flattening box is provided with a gear rod that can slide along the moving direction of the flattening frame, and the end of the gear rod is fixedly arranged with the side of the active plate. The flattening box is provided with a damper that can be extended and retracted along the moving direction of the flattening frame, and the end of the damper is fixedly arranged with the side of the active plate. It can slow down the speed of the flattening frame and improve the scraping effect of the scraper on the nonwoven fabric. The flattening box is fixedly provided with a motor, and the output end of the motor is fixedly provided with an incomplete gear meshing with the gear rod. The flattening frame is moved. The driven plate is slidably arranged with the flattening box, and a first spring is arranged between the driven plate and the flattening box. The flattening frame is returned to its original position after movement, and cooperates with the motor to scrape the bottom of the nonwoven fabric.

[0009] In the above-mentioned spunlace nonwoven bottom in-line compacting device, at least two sets of rollers are arranged between the flattening box and the spunlace module. The gap between the rollers close to the spunlace module is smaller than the gap between the rollers far from the spunlace module. The nonwoven fabric can be squeezed before spunlace to remove the air inside the nonwoven fabric, so as to enhance the fiber winding effect during the subsequent spunlace.

[0010] In the above-mentioned spunlace nonwoven bottom online compacting device, the compacting module includes a compacting box arranged at the discharge end, and an exhaust groove is provided at the top of the compacting box. An air compressor is arranged inside the compacting box, and a plurality of jet heads of the air compressor are arranged and located in the exhaust groove. The bottom of the nonwoven fabric after spunlace is subjected to gas impact, and the bottom with uneven thickness is slightly diffused, which is convenient for subsequent processing.

[0011] In the above-mentioned on-line compacting device for the bottom of spunlace nonwoven fabric, the compacting module further includes a squeeze box disposed on the compacting box and extending upward from the compacting box, and electric push rods are fixedly disposed at the bottom ends of both sides of the squeeze box. A touch switch matched with the compacting box is fixedly disposed at the end of the squeeze box. The height of the squeeze box is detected to facilitate the compacting operation of the bottom of the nonwoven fabric.

[0012] In the above-mentioned spunlace nonwoven bottom in-line compacting device, the extrusion box is designed with an open top, a squeezing plate is arranged inside the squeezing box, a second spring is arranged between the two ends of the squeezing plate and the squeezing box, a high-frequency vibrator is fixedly arranged at the bottom of the squeezing plate, and the top of the squeezing plate is an uneven surface. High-frequency vibration and squeezing of the bottom of the nonwoven fabric are achieved, thereby applying uniform pressure to the bottom of the nonwoven fabric and tightly interweaving the fibers together.

[0013] In the above-mentioned spunlaced nonwoven bottom in-line compacting device, the hot pressing unit includes a heater arranged inside the flattening box, and a hot pressing plate is arranged above the flattening module and the compacting module, and the hot pressing plate is heated by the heater. The nonwoven fabric can be heated before and after the spunlacing to soften the fibers and make them plastic.

[0014] Compared with the prior art, the on-line compacting device for the bottom of spunlace nonwoven fabric of the present invention has at least the following beneficial effects:

[0015] 1. The on-line compacting device for the bottom of the spunlace nonwoven fabric of the present invention is provided with a flattening module and a hot pressing unit arranged at the feeding end of the spunlace module, which can moderately heat the bottom of the nonwoven fabric to soften the fibers and make them have a certain plasticity, and scrape the bottom of the nonwoven fabric before spunlace to break up the entangled threads, and at the same time, can scrape and evenly spread the fibers of different thicknesses at the bottom of the nonwoven fabric to ensure the uniformity of the thickness of the nonwoven fabric after subsequent spunlace.

[0016] 2. The online compacting device for the bottom of the spunlace nonwoven fabric of the present invention is provided with a compacting module and a hot pressing unit arranged at the discharge end of the spunlace module, which can moderately heat the bottom of the nonwoven fabric and perform gas impact on the bottom of the nonwoven fabric after spunlace to slightly diffuse the bottom with uneven thickness, and then perform high-frequency vibration and extrusion on the bottom of the nonwoven fabric, thereby applying uniform pressure to the bottom of the nonwoven fabric and tightly interweaving the fibers together.

[0017] 3. The online compacting device for the bottom of the spunlace nonwoven fabric of the present invention is provided with at least two sets of rollers located between the flattening box and the spunlace module, which can squeeze the nonwoven fabric before spunlacement to remove the air inside the nonwoven fabric, so that the nonwoven fabric can effectively absorb the energy of the water jet after entering the spunlacement area, so as to enhance the fiber winding effect during subsequent spunlacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the use state of the on-line compacting device for the bottom of the spunlace nonwoven fabric of the present invention;

[0019] Figure 2 It is a schematic structural diagram of a flattening module and a compacting module of an online compacting device for the bottom of a spunlace nonwoven fabric of the present invention;

[0020] Figure 3 It is a schematic diagram of the flattening mechanism structure of the on-line compacting device for the bottom of the spunlace nonwoven fabric of the present invention;

[0021] Figure 4 Schematic diagram of the heater position of the on-line compacting device for the bottom of the spunlace nonwoven fabric of the present invention;

[0022] Figure 5 Schematic diagram of the compacting module structure of the on-line compacting device for the bottom of the spunlace nonwoven fabric of the present invention;

[0023] Figure 6 It is a schematic diagram of the position of the high-frequency vibrator of the online compacting device for the bottom of the spunlace nonwoven fabric of the present invention.

[0024] In the figure: 1. Hydroentanglement module;

[0025] 2. Flattening module; 21. Flattening box; 22. Flattening frame; 24. Scraping rod; 25. Resistance part;

[0026] 23. Flattening mechanism; 231. Active plate; 232. Driven plate; 233. Gear bar; 234. Damper; 235. Motor; 236. Incomplete gear; 237. First spring;

[0027] 3. Tight module; 31. Tight box; 32. Exhaust slot; 33. Air pressurizer; 34. Air jet; 35. Extrusion box; 36. Electric push rod; 37. Touch switch; 38. Extrusion plate; 39. Second spring; 40. High-frequency vibrator;

[0028] 4. hot pressing unit; 41. heater; 42. hot pressing plate;

[0029] 5. Pair of rollers. DETAILED DESCRIPTION

[0030] The following is a more detailed description of the on-line compacting device for the bottom of spunlace nonwoven fabric of the present invention in conjunction with the accompanying drawings and through specific embodiments.

[0031] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] See also Figure 1-Figure 6The spunlace nonwoven bottom online compacting device of this embodiment can moderately heat the bottom of the nonwoven fabric before and after spunlacement, and break up the tangled threads before spunlacement, slightly diffuse the uneven thickness bottom, and at the same time, can scrape and evenly sweep the fibers of different thicknesses at the bottom of the nonwoven fabric. After spunlacement, the bottom of the nonwoven fabric can be subjected to gas impact, high-frequency vibration and extrusion, thereby applying uniform pressure to the bottom of the nonwoven fabric and tightly interweaving the fibers together. In this embodiment, it mainly includes a flattening module 2 arranged at the feed end of the nonwoven spunlace module 1 to evenly break up the bottom of the nonwoven fabric. The spunlace module 1 is a mature prior art and will not be described here. The flattening module 2 includes a flattening box 21 arranged at the feed end. The top of the flattening box 21 is provided with at least one group of flattening racks 22 that can circulate and move perpendicular to the width direction of the nonwoven fabric, and the flattening racks 22 are guided by a slide rail structure arranged on the flattening box 21. The flattening racks 22 are arranged in four groups. Simply changing the number of the flattening racks 22 does not change the design concept of the present invention and is still within the protection scope of the present invention.

[0033] A plurality of scraper rods 24 are horizontally arranged on the flattening frame 22. The scraper rods 24 are arranged at an angle relative to the moving direction of the non-woven fabric, so that the tangled threads can be driven away and scattered more easily. The scraper rods 24 can be arranged in parallel with each other or in an eight-shaped arrangement or in an irregularly inclined arrangement. The front end of the scraper rods 24 is an arc-shaped structure to prevent the bottom of the non-woven fabric from being blocked and causing injuries. The top end of the scraper rods 24 is provided with a resistance part 25 for increasing the friction force on the non-woven fabric. The flattening box 21 is provided with a flattening mechanism 23 for driving the flattening frame 22 to move.

[0034] The flattening frame 22 is driven to move on the flattening box 21 through the flattening mechanism 23, so that the resistance part 25 on the scraper rod 24 generates friction with the non-woven fabric, breaking up the tangled threads, and at the same time, the thickness of the bottom can be scraped evenly to ensure the uniformity of the thickness of the non-woven fabric after subsequent spunlace.

[0035] In order to realize the movement of the flattening frame, in this embodiment, see Figure 2-Figure 4The flattening mechanism 23 includes an active plate 231 and a driven plate 232 respectively fixed at the two ends of the flattening frame 22. The flattening box 21 is provided with a gear rod 233 that can slide along the moving direction of the flattening frame 22, and the end of the gear rod 233 is fixed to the side of the active plate 231. The flattening box 21 is provided with a damper 234 that can be extended and retracted along the moving direction of the flattening frame 22, and the end of the damper 234 is fixed to the side of the active plate 231. It can slow down the speed of the flattening frame 22 and improve the scraping effect of the scraper on the non-woven fabric. The flattening box 21 is fixed with a motor 235, and the output end of the motor 235 is fixed with an incomplete gear 236 meshing with the gear rod 233. The flattening frame 22 is moved. The driven plate 232 is slidably arranged with the flattening box 21, and a first spring 237 is arranged between the driven plate 232 and the flattening box 21. The flattening frame 22 is returned to its original position after being moved, and cooperates with the motor 235 to scrape the bottom of the non-woven fabric.

[0036] The control motor 235 works to rotate the incomplete gear 236, thereby moving the gear rod 233 meshed with the incomplete gear 236. At this time, the gear rod 233 pushes the active plate 231 and overcomes the pressure of the damper 234 to move along the guide rail, thereby achieving the flattening of the yarn balls at the bottom of the non-woven fabric. When the incomplete gear 236 is no longer meshed with the gear rod 233, the driven plate 232 drives the flattening frame 22 back to its original position under the action of the first spring 237, and slows down the speed of the flattening frame 22 through the damper 234, thereby improving the scraping effect of the scraper on the non-woven fabric. After the flattening frame 22 returns to its original position, the gear rod 233 is driven to move again through the continuously rotating incomplete gear 236, and this process is repeated.

[0037] In order to enhance the fiber winding effect during hydroentanglement, in this embodiment, see Figure 1-Figure 3 At least two groups of rollers 5 are arranged between the flattening box 21 and the spunlacing module 1. The gap between the rollers 5 close to the spunlacing module 1 is smaller than the gap between the rollers 5 far from the spunlacing module 1. The nonwoven fabric can be squeezed before spunlacing to remove the air inside the nonwoven fabric, so as to enhance the fiber winding effect during the subsequent spunlacing.

[0038] In order to tighten the bottom of the nonwoven fabric, in this embodiment, see Figure 2 , Figure 5 and Figure 6The discharge end of the spunlace module 1 is provided with a compacting module 3 for evenly spreading the bottom of the non-woven fabric. The compacting module 3 includes a compacting box 31 provided at the discharge end, and an exhaust groove 32 is provided at the top of the compacting box 31. An air pressurizer 33 is provided inside the compacting box 31, and the air pressurizer 33 is a mature prior art and will not be described in detail here. A plurality of jet heads 34 of the air pressurizer 33 are provided and are located in the exhaust groove 32. The air pressurizer 33 is controlled to work, and the air is passed through the jet head 34 to perform gas impact on the bottom of the non-woven fabric after spunlace, so as to slightly diffuse the bottom with uneven thickness, which is convenient for subsequent processing. At this time, the force generated by the air pressurizer 33 is controlled so as not to damage the structure of the non-woven fabric too much.

[0039] The compacting module 3 also includes an extrusion box 35 disposed on the compacting box 31 and extending upward from the compacting box 31, and the number of the extrusion boxes 35 is four. Simply changing the number of the extrusion boxes 35 does not change the design concept of the present invention and is still within the scope of protection of the present invention. Electric push rods 36 are fixedly disposed at the bottom ends of both sides of the extrusion box 35. A touch switch 37 that cooperates with the compacting box 31 is fixedly disposed at the end of the extrusion box 35. The extrusion box 35 is lifted and lowered by the electric push rod 36, thereby squeezing the non-woven fabric. At the same time, the height of the extrusion box 35 is detected by the touch switch 37 to ensure the squeezing force on the non-woven fabric and facilitate the compacting operation on the bottom of the non-woven fabric.

[0040] The extrusion box 35 is designed to be open at the top, and an extrusion plate 38 is arranged inside the extrusion box 35. A second spring 39 is arranged between the two ends of the extrusion plate 38 and the extrusion box 35. A high-frequency vibrator 40 is fixedly arranged at the bottom of the extrusion plate 38. The high-frequency vibrator 40 is a mature prior art and will not be described here. The top of the extrusion plate 38 is an uneven surface. The high-frequency vibrator 40 is used to achieve high-frequency vibration and extrusion of the bottom of the non-woven fabric, thereby applying uniform pressure to the bottom of the non-woven fabric. At the same time, the uneven surface enhances the pulling effect on the fibers during vibration, and the fibers are tightly interwoven together.

[0041] In order to soften the nonwoven fibers, see Figure 1-Figure 4 , the two ends of the spunlace module 1 are also provided with hot pressing units 4 corresponding to the positions of the flattening module 2 and the compacting module. The hot pressing unit 4 includes a heater 41 arranged inside the flattening box 21, and the heater 41 is a mature existing technology and is not described here. The heater 41 can be oil-heated or water-heated. A hot pressing plate 42 is arranged above the flattening module 2 and the compacting module, and the hot pressing plate 42 is heated by the heater 41. The non-woven fabric can be heated before and after the spunlace to soften the fibers and give them a certain plasticity. At the same time, the top of the non-woven fabric is limited to facilitate the extrusion before and after the spunlace.

[0042] The method of using the in-line compacting device for the bottom of the spunlace nonwoven fabric of the present invention is as follows: First, before the spunlace, the heating plate is heated by the heater 41, and the nonwoven fabric is heated and softened when passing through to make it have a certain plasticity. The motor 235 is controlled to work, so that the incomplete gear 236 rotates, thereby moving the gear rod 233 meshing with the incomplete gear 236. At this time, the gear rod 233 pushes the active plate 231 and overcomes the pressure of the damper 234 to move along the guide rail, so that the resistance part 25 on the scraper rod 24 generates friction with the nonwoven fabric, breaking up the tangled wire, and at the same time, the thickness of the bottom can be scraped and swept evenly, ensuring the uniformity of the thickness of the nonwoven fabric after the subsequent spunlace.

[0043] When the incomplete gear 236 is no longer meshed with the toothed bar 233, the driven plate 232 drives the flattening frame 22 back to its original position under the action of the first spring 237, and slows down the speed of the flattening frame 22 through the damper 234, thereby improving the scraping effect of the scraper on the non-woven fabric. After the flattening frame 22 is returned to its original position, the toothed bar 233 is driven to move again through the continuously rotating incomplete gear 236, and this process is repeated. Then, the non-woven fabric is squeezed by the roller 5 to remove the air inside the non-woven fabric, so as to enhance the fiber winding effect during the subsequent hydroentanglement.

[0044] After the non-woven fabric is spunlaced, the air compressor 33 is controlled to work, and the air is blown to the bottom of the non-woven fabric after spunlacing through the air jet 34, so as to slightly diffuse the uneven thickness of the bottom, and then the electric push rod 36 is used to lift and lower the squeezing box 35, so as to squeeze the non-woven fabric. At the same time, the height of the squeezing box 35 is detected by the touch switch 37 to ensure the squeezing force of the non-woven fabric. The high-frequency vibrator 40 is used to achieve high-frequency vibration and squeezing of the bottom of the non-woven fabric, so as to apply uniform pressure to the bottom of the non-woven fabric, and at the same time, the uneven surface is used to enhance the pulling effect on the fibers during vibration, so that the fibers are tightly interwoven together.

[0045] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by a person of ordinary skill in the field to which the invention belongs. The use of "one" or "an" and other similar words in the specification and claims of this application does not necessarily indicate a quantitative limitation. "Include" or "comprises" and other similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0046] The exemplary implementation modes of the present invention are described in detail above with reference to the preferred embodiments. However, it can be understood by those skilled in the art that, without departing from the concept of the present invention, various modifications and variations can be made to the above-mentioned specific embodiments, and various combinations of the technical features and structures proposed in the present invention can be made without exceeding the protection scope of the present invention.

Claims

1. An online compacting device for the bottom of spunlace nonwoven fabrics, Features: The invention comprises a flattening module (2) arranged at the feeding end of a non-woven fabric spunlacing module (1) for evenly breaking up the bottom of the non-woven fabric, a compacting module (3) arranged at the discharging end of the spunlacing module (1) for evenly spreading the bottom of the non-woven fabric, and hot pressing units (4) corresponding to the positions of the flattening module (2) and the compacting module are also arranged at both ends of the spunlacing module (1).

2. The on-line compacting device for the bottom of spunlace nonwoven fabric according to claim 1, Features: The flattening module (2) comprises a flattening box (21) arranged at a feed end, the top end of the flattening box (21) is provided with at least one group of flattening frames (22) which can cyclically move perpendicularly to the width direction of the non-woven fabric, and the flattening box (21) is provided with a flattening mechanism (23) for driving the flattening frames (22) to move.

3. The on-line compacting device for the bottom of spunlace nonwoven fabric according to claim 2, Features: A plurality of scraping rods (24) are horizontally arranged on the flattening frame (22), the front ends of the scraping rods (24) are in an arc-shaped structure, and the top ends of the scraping rods (24) are provided with resistance parts (25) for increasing the friction force on the non-woven fabric.

4. The on-line compacting device for the bottom of spunlace nonwoven fabric according to claim 2, Features: The flattening mechanism (23) comprises an active plate (231) and a driven plate (232) respectively fixedly arranged at two ends of the flattening frame (22); the flattening box (21) is provided with a gear rod (233) which can slide along the moving direction of the flattening frame (22); the end of the gear rod (233) is fixedly arranged with the side of the active plate (231); the flattening box (21) is provided with a damper (234) which can be extended and retracted along the moving direction of the flattening frame (22); ), the end of the damper (234) is fixedly arranged on the side of the active plate (231), a motor (235) is fixedly arranged on the flattening box (21), an incomplete gear (236) meshing with the gear rod (233) is fixedly arranged at the output end of the motor (235), the driven plate (232) and the flattening box (21) are slidably arranged, and a first spring (237) is arranged between the driven plate (232) and the flattening box (21).

5. The on-line compacting device for the bottom of spunlace nonwoven fabric according to claim 2, Features: At least two groups of rollers (5) are arranged between the flattening box (21) and the spunlacing module (1), and the gap between the rollers (5) close to the spunlacing module (1) is smaller than the gap between the rollers (5) farther from the spunlacing module (1).

6. The on-line compacting device for the bottom of spunlace nonwoven fabric according to claim 1, Features: The compacting module (3) comprises a compacting box (31) arranged at the discharge end, an exhaust groove (32) is provided at the top end of the compacting box (31), an air compressor (33) is arranged inside the compacting box (31), and a plurality of jet heads (34) of the air compressor (33) are arranged and located in the exhaust groove (32).

7. The on-line compacting device for the bottom of spunlace nonwoven fabric according to claim 6, Features: The compacting module (3) further comprises an extrusion box (35) arranged on the compacting box (31) and capable of extending upward from the compacting box (31), electric push rods (36) being fixedly arranged at the bottom ends of both sides of the extrusion box (35), and a light touch switch (37) cooperating with the compacting box (31) being fixedly arranged at the end of the extrusion box (35).

8. The on-line compacting device for the bottom of spunlace nonwoven fabric according to claim 7, Features: The extrusion box (35) is designed to be open at the top, and an extrusion plate (38) is arranged inside the extrusion box (35). Second springs (39) are arranged between the two ends of the extrusion plate (38) and the extrusion box (35). A high-frequency vibrator (40) is fixedly arranged at the bottom end of the extrusion plate (38), and the top end of the extrusion plate (38) is an uneven surface.

9. The on-line compacting device for the bottom of spunlace nonwoven fabric according to claim 2, Features: The hot pressing unit (4) comprises a heater (41) arranged inside the flattening box (21), and a hot pressing plate (42) is arranged above the flattening module (2) and the compacting module, and the hot pressing plate (42) is heated by the heater (41).

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