A spunlace nonwoven fabric manufacturing production line

Abstract

The application provides a spunlace non-woven fabric manufacturing production line, and relates to the technical field of spunlace non-woven equipment, which comprises a cotton conveying line, a liftable flow guide device and a cotton carding machine connected in sequence; the cotton carding machine is arranged above the cotton conveying line, and one end of the cotton carding machine is rotationally connected to the liftable flow guide device; when the end of the liftable flow guide device away from the cotton carding machine is in a descending state, the cotton is conveyed to the cotton carding machine through the liftable flow guide device; when the end of the liftable flow guide device away from the cotton carding machine is in a lifting state, the cotton output by the cotton conveying line is directly conveyed to a cotton roll winding machine. The application has the advantages that the equipment layout is reasonable, the transmission is stable, the whole-process continuous production is realized, the overall production efficiency and product stability are improved, the cotton conveying path can be flexibly switched through the liftable flow guide device, the cotton can be sent into the cotton carding machine for normal production or directly sent to the cotton roll winding machine, and the multifunctionality and scheduling efficiency of the production line are improved.

Description

Technical Field

[0001] This invention relates to the field of spunlace nonwoven equipment technology, and in particular to a spunlace nonwoven fabric manufacturing production line. Background Technology

[0002] Spunlace nonwoven fabric is made by using high-pressure micro-flows of water to puncture a fiber web, causing the fibers to entangle and reinforce each other, ultimately forming a fabric with certain strength and properties. This manufacturing method differs from traditional weaving processes, as it eliminates the need for warp and weft interlacing, yet achieves effective fiber bonding, laying the foundation for its application in numerous fields.

[0003] The production process of spunlace nonwoven fabric is interconnected. First, the fiber raw material is opened and impurities removed, making it loose and ready for subsequent processing. Next is pre-pressing and leveling to reduce the cotton's bulkiness, providing a good foundation for fiber entanglement. Then, the cotton web is pre-wetted to enhance the bonding force between fibers, improving the subsequent hydroentanglement reinforcement effect. Next, multiple hydroentanglement reinforcements are applied to both the front and back sides, using high-pressure micro-flows of water to entangle and tightly bind the fibers, forming a strong structure. Following this is the dewatering and dehydration process, which removes excess moisture, reducing the burden on subsequent drying. Then comes the drying and setting process, and finally, the winding process neatly rolls the finished product for easy storage and transportation. These processes are highly interconnected; a problem in any link can affect the stability and continuity of the entire production process, thus impacting product quality.

[0004] However, current spunlace nonwoven fabric production equipment on the market is still mainly single-process equipment, with each machine only able to independently complete one step such as opening, carding, spunlace, or drying. Therefore, in actual operation, materials need to be frequently transferred between multiple machines, which not only reduces overall production efficiency and increases the burden of manual operation and handling, but also easily leads to various problems during process transitions. Due to the lack of effective connection and positioning mechanisms between machines, the fiber web is prone to displacement, stretching, or wrinkling during transfer. Once the fiber web is misaligned before entering the spunlace or drying stage, it will directly affect the uniformity of fiber entanglement and the consistency of the fabric surface. This will result in uneven weight distribution in the product, with some areas thicker than others; reduced strength, making it prone to breakage; and appearance defects, affecting the product's aesthetics. Summary of the Invention

[0005] This invention overcomes the shortcomings of the prior art and provides a spunlace nonwoven fabric manufacturing production line. From raw material transportation, web forming, wrapping, spunlace, dewatering, drying to winding, the entire process is smoothly connected, the equipment layout is reasonable, and the transmission is stable, realizing continuous production throughout the entire process, which is conducive to improving overall production efficiency and product stability.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: A spunlace nonwoven fabric manufacturing production line includes a cotton conveyor line, a liftable guide device, and a cotton-polyester machine connected in sequence. The cotton-polyester machine is located above the cotton conveyor line, and one end of the cotton-polyester machine is rotatably connected to a liftable guide device. When the end of the liftable guide device away from the cotton-polyester machine is in a descending state, the cotton is conveyed to the cotton-polyester machine through the liftable guide device; when the end of the liftable guide device away from the cotton-polyester machine is in a raised state, the cotton output from the cotton conveyor line is directly conveyed to the cotton roll winding machine. The end of the cotton-polyester machine away from the liftable guide device is connected to the hydroentangling machine via a bridge conveyor belt. The bridge conveyor belt is connected to a cotton web wrapping machine, which is used to wrap the cotton sheets output from the cotton-polyester machine with two layers of cotton web. The wrapped non-woven fabric is transported to the hydroentangling machine via the bridge conveyor belt. The rear end of the hydroentanglement machine is connected to a rolling mill and a dryer in sequence. The rolling mill is used to dehydrate the nonwoven fabric and recover the water pressed out and send it to the hydroentanglement machine. The dryer is used to dry the nonwoven fabric. The other end of the dryer is connected to a hydroentanglement nonwoven fabric winding machine.

[0007] Furthermore, the hydroentangling machine includes a pre-wetted belt roller, a first hydroentangling mesh belt, and a second hydroentangling mesh belt; the first hydroentangling mesh belt is located directly above the second hydroentangling mesh belt, and the pre-wetted belt roller is located directly above the first hydroentangling mesh belt; When the nonwoven fabric is fed into the hydroentangling machine from the bridge conveyor belt, it first passes over the pre-wetted belt roller, then winds around between the pre-wetted belt roller and the first hydroentangling wire mesh belt, then winds around between the first hydroentangling wire mesh belt and the second hydroentangling wire mesh belt, and finally winds out from above the second hydroentangling wire mesh belt.

[0008] Furthermore, an output belt is also provided below the second hydroentangled mesh belt, with the end of the output belt angled upwards away from the bottom of the hydroentangled machine.

[0009] Furthermore, a pre-wetting hydroentanglement component is provided below the pre-wetting belt roller, and a first hydroentanglement mechanism is provided between the double-layer mesh belts of the first hydroentanglement mesh belt. The water spray nozzle of the first hydroentanglement mechanism faces upward and sprays water onto the non-woven fabric passing above the first hydroentanglement mesh belt. A second hydroentanglement mechanism is provided between the two layers of the second hydroentangled mesh belt. The water spray nozzle of the second hydroentanglement mechanism faces upward and sprays water onto the nonwoven fabric passing above the second hydroentangled mesh belt.

[0010] Furthermore, the liftable flow guiding device includes a lifting frame, one end of which is connected to a cotton and polyester machine via a bearing seat. The two ends of the lifting frame are respectively rotatably connected to a lifting drive shaft and a lifting driven shaft, which are connected by a lifting belt. The lifting drive shaft is directly connected to the output end of the lifting motor.

[0011] Furthermore, the cotton-polyester machine includes a cotton-polyester frame, on which a plurality of upper rollers and a plurality of lower rollers are rotatably connected; the plurality of upper rollers are at the same horizontal height, the plurality of lower rollers are also at the same horizontal height, and the plurality of upper rollers and the plurality of lower rollers are staggered relative to each other in the vertical direction.

[0012] Furthermore, several upper rollers and several lower rollers are connected to the upper belt and the lower belt; Several lower rollers are located inside the upper belt, and several upper rollers are located outside the upper belt, with the upper belt and the upper rollers separated by a lower belt. Several lower rollers are located on the outside of the lower belt, and several upper rollers are located on the inside of the lower belt, with the lower belt and the lower rollers separated by an upper belt. This causes the outer sides of the upper belt and the lower belt to fit together, forming a repeatedly bending conveyor channel between the upper and lower belts, through which the nonwoven fabric passes.

[0013] Furthermore, the spunlace nonwoven fabric winding machine includes several winding active rollers synchronously driven by a winding motor; the several winding active rollers are arranged in parallel and rotate in the same direction to assist the nonwoven fabric in being wound onto the paper tube fitted on the winding air shaft.

[0014] Furthermore, a cotton roll lifting component is provided above the plurality of winding active rollers; the cotton roll lifting component includes a lifting frame; The two ends of the take-up air shaft are slidably connected to the lifting frame. The lifting frame is equipped with a pressing cylinder. The output end of the pressing cylinder is connected to the take-up air shaft and applies downward pressure to the take-up air shaft.

[0015] Furthermore, the end of the take-up active roller closest to the dryer is also provided with a first take-up feeding mechanism and a second take-up feeding mechanism; the end of the take-up active roller furthest from the dryer is provided with a fabric cutting mechanism. The first winding and feeding mechanism and the second winding and feeding mechanism have the same structure; The first winding and feeding mechanism includes a feeding pre-pressure roller and a feeding drive roller. The end of the feeding drive roller is connected to a feeding motor. The feeding pre-pressure roller is connected to a feeding pre-pressure frame. A feeding pre-pressure cylinder is provided on the feeding pre-pressure frame. The feeding pre-pressure cylinder applies pressure to the feeding pre-pressure roller toward the feeding drive roller.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This spunlace nonwoven fabric manufacturing production line features smooth process connections, reasonable equipment layout, and stable transmission from raw material conveying, web forming, wrapping, spunlace, dewatering, drying to winding. It achieves continuous production throughout the entire process, which is conducive to improving overall production efficiency and product stability. In particular, the liftable guide device can flexibly switch the cotton conveying path, which can send cotton into the cotton-polyester machine for normal production or directly to the cotton roll winding machine to achieve independent winding of raw cotton that is not wrapped in the cotton web, thereby improving the multifunctionality and scheduling efficiency of the production line.

[0017] 2. The cotton-polyester machine adopts a staggered arrangement of upper and lower rollers and a double belt to form a repeatedly bending conveying channel. During the conveying process, the fiber web is subjected to continuous and uniform contact and moderate compression, which is conducive to the tight arrangement and initial bonding of fibers, providing a more uniform and stable fiber web foundation for the subsequent hydroentangling process.

[0018] 3. The hydroentangling machine adopts a progressive reinforcement process of pre-wetting and double-sided hydroentangling. First, the fabric is moistened and initially entangled by the pre-wetting belt roller. Then, it is conveyed and flipped through the first and second hydroentangling mesh belts. During the conveying process, double-sided hydroentangling is carried out through the first and second hydroentangling mechanisms, so that both sides of the nonwoven fabric are fully and evenly entangled, resulting in a product with a balanced structure, high strength, and smooth appearance.

[0019] 4. The rolling mill efficiently dewaters the hydroentangled nonwoven fabric, and the water pressed out is treated by the recycling system and then supplied to the hydroentanglement machine for reuse, realizing the recycling of production water, reducing water consumption, and meeting the requirements of green manufacturing.

[0020] 5. The winding machine is equipped with multiple sets of synchronously driven winding active rollers, cotton roll lifting components with pressure adjustment, as well as automatic feeding mechanism and fabric cutting mechanism, which can realize automatic winding, constant tension winding, neat fabric cutting and tight forming of roll material, greatly reducing manual operation and improving winding efficiency and roll material quality consistency. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and, together with the embodiments thereof, are used to explain the invention. They do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the spunlace nonwoven fabric manufacturing production line according to an embodiment of the present invention; Figure 2 This is a side view of a spunlace nonwoven fabric manufacturing production line according to an embodiment of the present invention; Figure 3 This is a partial schematic diagram of a spunlace nonwoven fabric manufacturing production line according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the first structure of the hydroentangling machine according to an embodiment of the present invention; Figure 5This is a schematic diagram of the second structure of the hydroentangling machine according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the lifting and lowering flow guiding device according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of a spunlace nonwoven fabric winding machine according to an embodiment of the present invention; Figure 8 This is an exploded schematic diagram of a spunlace nonwoven fabric winding machine according to an embodiment of the present invention; Figure 9 This is a schematic diagram of an explosion of a cotton-polyester machine according to an embodiment of the present invention.

[0022] In the diagram: 1. Cotton conveyor line; 2. Liftable guide device; 201. Lifting frame; 202. Lifting drive shaft; 203. Lifting motor; 204. Lifting driven shaft; 205. Lifting belt; 3. Cotton-polyester machine; 301. Cotton-polyester frame; 302. Lower belt; 303. Upper belt; 304. Upper roller; 305. Lower roller; 4. Overpass conveyor belt; 5. Cotton lap winding machine; 6. Hydroentangling machine; 600. Pre-wetted belt roller; 601. First hydroentangling mesh belt; 602. Second hydroentangling mesh belt; 603. Pre-wetted hydroentangling component; 604. First hydroentangling mechanism; 605. 606. Second hydroentangling mechanism; 7. Output belt; 8. Rolling mill; 9. Dryer; 101. Drying conveyor belt; 11. Hydroentangled nonwoven fabric winding machine; 12. First winding feed mechanism; 13. Feed pre-compression frame; 14. Feed pre-compression roller; 15. Feed drive roller; 16. Feed motor; 17. Second winding feed mechanism; 18. Winding motor; 19. Winding drive roller; 10. Cotton roll lifting component; 11. Lifting frame; 12. Cotton roll; 10. Winding air shaft; 11. Paper tube; 12. Fabric cutting mechanism. Detailed Implementation

[0023] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the invention.

[0024] like Figures 1 to 9 As shown, a spunlace nonwoven fabric manufacturing production line includes a cotton conveyor line 1, a liftable guide device 2, and a cotton-polyester machine 3 connected in sequence. The cotton conveyor line 1 is used to continuously and stably transport raw cotton to the next process, ensuring the continuity of the production process and the uniformity of material supply. The cotton-polyester mill 3 is located above the cotton conveyor line 1, with one end of the mill 3 rotatably connected to a lifting guide device 2. The lifting guide device 2 has two working states: lifting and lowering, allowing for flexible switching of the cotton conveying path according to production needs. When the end of the liftable guide device 2 away from the cotton-polyester machine 3 is in a descending state, the cotton is conveyed to the cotton-polyester machine 3 through the liftable guide device 2; when the end of the liftable guide device 2 away from the cotton-polyester machine 3 is in a raised state, the cotton output from the cotton conveyor line 1 is directly conveyed to the cotton roll winding machine 5, which can wind up the cotton that is not wrapped with cotton web.

[0025] The end of the cotton-polyester machine 3 away from the liftable guide device 2 is connected to the hydroentangling machine 6 via a bridge conveyor belt 4. The bridge conveyor belt 4 is connected to a cotton web wrapping machine, which is used to wrap the cotton sheets output from the cotton-polyester machine 3 in two layers to enhance the integrity, uniformity and intermediate bonding of the fiber web, and prevent the fiber web from being accidentally dispersed or deformed during transportation and subsequent processing. The wrapped nonwoven fabric is transported to the hydroentangling machine 6 via the bridge conveyor belt 4. The hydroentangling machine 6 uses high-pressure micro-water flow to perform multi-directional entanglement and reinforcement of the fiber web, so that it forms a nonwoven fabric structure with good strength, softness and uniform appearance.

[0026] The rear end of the hydroentangling machine 6 is connected to the rolling mill 7 and the dryer 8 in sequence. The rolling mill 7 is used for efficient mechanical dewatering of the hydroentangled nonwoven fabric. The water pressed out is treated by a recycling system and then sent back to the hydroentangling machine 6 for reuse, realizing efficient use of water resources and environmentally friendly production. The dryer 8 uses hot air or drum drying to thoroughly remove residual moisture from the dewatered nonwoven fabric, stabilizing the fabric's shape and physical properties.

[0027] The other end of the dryer 8 is connected to a spunlace nonwoven fabric winding machine 9, which is used to roll the dried and shaped finished nonwoven fabric into a roll flat and tightly, so as to facilitate subsequent storage, transportation and processing, and complete the continuous production process.

[0028] The liftable guide device 2 includes a lifting frame 201. One end of the lifting frame 201 is connected to the cotton mill 3 via a bearing with a mounting seat. This design allows the device to rotate smoothly around the connection point during lifting, reducing motion resistance and avoiding structural interference, thus improving the flexibility and reliability of the device's movement. A lifting drive shaft 202 and a lifting driven shaft 204 are rotatably connected to both ends of the lifting frame 201, respectively. The lifting drive shaft 202 and the lifting driven shaft 204 are connected via a lifting belt 205. The lifting drive shaft 202 is directly connected to the output end of the lifting motor 203. The lifting belt 205 serves as the material conveying carrier, and its surface typically has an anti-slip texture or coating to ensure that the cotton does not slip or accumulate during conveying, achieving continuous and uniform material transfer.

[0029] The liftable guide device 2 can flexibly switch the conveying path by adjusting the tilt angle of the lifting frame 201 according to production needs, thereby improving the adaptability and operating efficiency of the production line. The overall structure is reasonably laid out, the transmission is smooth, and it is easy to control and maintain.

[0030] The cotton-polyester machine 3 includes a cotton-polyester frame 301, which is rotatably connected to several upper rollers 304 and several lower rollers 305. The upper rollers 304 are at the same horizontal height, and the lower rollers 305 are also at the same horizontal height. The upper rollers 304 and the lower rollers 305 are staggered in the vertical direction. This staggered layout is the basis for forming a specific conveying path, which is beneficial for the effective guidance and processing of fiber materials.

[0031] Several upper rollers 304 and several lower rollers 305 are connected to an upper belt 303 and a lower belt 302. Several lower rollers 305 are located inside the upper belt 303, and several upper rollers 304 are located outside the upper belt 303, with the lower belt 302 separating the upper belt 303 and the upper rollers 304. Several lower rollers 305 are located outside the lower belt 302, and several upper rollers 304 are located inside the lower belt 302, with the upper belt 303 separating the lower belt 302 and the lower rollers 305. This causes the outer sides of the upper belt 303 and the lower belt 302 to be in contact, forming a repeatedly bending conveying channel between the upper belt 303 and the lower belt 302. When the nonwoven fabric passes through this conveying channel, it will be subjected to continuous contact and moderate compression from the two belts. This design not only ensures smooth material transport and prevents the fiber web from shifting or deforming, but also promotes the tight arrangement and initial bonding of fibers through controlled friction and pressure. This provides a more uniform and stable fiber web structure foundation for subsequent hydroentangling reinforcement processes, which is beneficial for improving the uniformity and mechanical properties of the final product.

[0032] The hydroentanglement machine 6 includes a pre-wetting belt roller 600, a first hydroentangled web belt 601, and a second hydroentangled web belt 602. The first hydroentangled web belt 601 is located directly above the second hydroentangled web belt 602, and the pre-wetting belt roller 600 is located directly above the first hydroentangled web belt 601. The pre-wetting belt roller 600, located at the top, is used to initially wet the incoming nonwoven fabric, enhancing the inter-fiber bonding force and providing uniform moisture content for subsequent hydroentanglement. Below it is a pre-wetting hydroentanglement component 603, which can achieve initial entanglement while wetting, improving processing efficiency and web density.

[0033] When the nonwoven fabric is fed into the hydroentangling machine 6 from the bridge conveyor belt 4, it first passes over the pre-wetted belt roller 600, then winds around between the pre-wetted belt roller 600 and the first hydroentangling wire belt 601, then winds around between the first hydroentangling wire belt 601 and the second hydroentangling wire belt 602, and finally winds out from above the second hydroentangling wire belt 602.

[0034] The first hydroentangled mesh belt 601 is located directly below the pre-wetted belt roller 600 and receives the pre-wetted nonwoven fabric. A first hydroentanglement mechanism 604 is provided between the two layers of mesh belts, with the water spray nozzle facing upward, so that the high-pressure water flow penetrates the nonwoven fabric from bottom to top, completing the first main hydroentanglement reinforcement, effectively improving the fiber entanglement strength and structural stability of the nonwoven fabric bottom layer.

[0035] The second hydroentangled belt 602 is located directly below the first hydroentangled belt 601, forming a continuous processing channel between them. The nonwoven fabric passes sequentially between the pre-wetted belt roller 600 and the first hydroentangled belt 601, and between the first hydroentangled belt 601 and the second hydroentangled belt 602, achieving multi-stage progressive entanglement. A second hydroentanglement mechanism 605 is provided between the two layers of the second hydroentangled belt 602, with the spray nozzles also facing upwards, performing a second hydroentanglement on the nonwoven fabric passing above it, enhancing the uniformity of surface fiber bonding and overall mechanical properties. Through the double-sided hydroentanglement process, both sides of the nonwoven fabric can be fully reinforced, resulting in a more balanced structure and a smoother appearance.

[0036] Below the second hydroentangled mesh belt 602, an output belt 606 is provided, the end of which extends obliquely upward and gradually moves away from the bottom of the hydroentanglement machine 6. This design allows the nonwoven fabric to smoothly transition to the next process after hydroentanglement, avoiding damage to the fabric surface caused by abrupt turning or friction. At the same time, it is conducive to the natural dehydration of the fabric surface, reducing the dehydration burden on the subsequent rolling mill 7, and improving overall production efficiency and product quality consistency.

[0037] The spunlace nonwoven fabric winding machine 9 is mainly used to tightly and smoothly wind the dried and shaped finished nonwoven fabric into rolls for easy subsequent storage and transportation. The spunlace nonwoven fabric winding machine 9 includes several winding drive rollers 904 synchronously driven by a winding motor 903; these drive rollers are arranged in parallel and rotate in the same direction, and together provide stable and synchronous traction and support forces to help the nonwoven fabric be evenly wound onto the paper tube 9054 sleeved on the surface of the winding air shaft 9053, effectively avoiding problems such as deviation, wrinkling or uneven tension of the roll during the winding process.

[0038] A cotton roll lifting component 905 is provided above several take-up drive rollers 904. The cotton roll lifting component 905 includes a lifting frame 9051. The two ends of the take-up air shaft 9053 are slidably connected to the lifting frame 9051, which can realize the smooth lifting and lowering of the take-up air shaft 9053 in the vertical direction. A pressing cylinder is provided on the lifting frame 9051. The output end of the pressing cylinder is connected to the take-up air shaft 9053 and applies downward pressure to the take-up air shaft 9053. This pressure ensures that the lower surface of the cotton roll wound onto the paper tube is always in contact with the take-up drive rollers 904, so that the power of the take-up drive rollers 904 can be transmitted to the cotton roll, thereby realizing the automatic winding of the cotton roll. At the same time, it can also ensure the pressure of the pressing cylinder on the cotton roll, ensuring the tightness of the winding and the flatness of the end face.

[0039] The winding drive roller 904 is also provided with a first winding feed mechanism 901 and a second winding feed mechanism 902 at the end near the dryer 8; the winding drive roller 904 is provided with a fabric cutting mechanism 906 at the end away from the dryer 8; the fabric cutting mechanism 906 is used to quickly and neatly cut the fabric when winding is completed or when it is necessary to change the roll, so as to improve production continuity and operating efficiency.

[0040] The first winding and feeding mechanism 901 and the second winding and feeding mechanism 902 have the same structure. The first winding and feeding mechanism 901 includes a feeding pre-compression roller 9012 and a feeding drive roller 9013. The end of the feeding drive roller 9013 is connected to the feeding motor 9014. The feeding pre-compression roller 9012 is connected to the feeding pre-compression frame 9011. The feeding pre-compression frame 9011 is equipped with a feeding pre-compression cylinder. The feeding pre-compression cylinder applies pressure to the feeding pre-compression roller 9012 towards the feeding drive roller 9013. When the nonwoven fabric is guided between the feeding drive roller 9013 and the feeding pre-compression roller 9012, the two rollers clamp and pull the fabric head under pressure, smoothly and accurately feeding it into the winding area, realizing a fast and reliable winding operation. This structure helps to reduce manual intervention and improve the level of production automation and operational stability.

[0041] The spunlace nonwoven fabric manufacturing production line of the present invention can flexibly switch the cotton conveying path through the liftable guide device 2. It can send cotton into the cotton-polyester machine 3 for normal production, or send it directly to the cotton roll winding machine 5 to independently wind up the raw cotton that is not wrapped with cotton web, thereby improving the multifunctionality and scheduling efficiency of the production line.

[0042] The cotton-polyester machine 3 adopts a staggered arrangement of upper and lower rollers and a double belt to form a repeatedly bending conveying channel. During the conveying process, it applies continuous and uniform contact and moderate compression to the fiber web, which is conducive to the tight arrangement and initial bonding of fibers, providing a more uniform and stable fiber web foundation for the subsequent hydroentangling process.

[0043] The hydroentanglement machine 6 adopts a progressive reinforcement process of pre-wetting and double-sided hydroentanglement. First, the fabric is moistened and initially entangled by the pre-wetting belt roller 600. Then, it is conveyed and flipped by the first hydroentanglement mesh belt 601 and the second hydroentanglement mesh belt 602. During the conveying process, double-sided hydroentanglement is carried out by the first hydroentanglement mechanism 604 and the second hydroentanglement mechanism 605, so that both sides of the nonwoven fabric are fully and evenly entangled, resulting in a product with a balanced structure, high strength, and smooth appearance.

[0044] The rolling mill 7 efficiently dewaters the hydroentangled nonwoven fabric, and the water pressed out is treated by the recycling system and then supplied to the hydroentanglement machine 6 for reuse, realizing the recycling of production water, reducing water consumption, and meeting the requirements of green manufacturing.

[0045] The winding machine 9 is equipped with multiple sets of synchronously driven winding active rollers 904, cotton roll lifting components 905 with pressure adjustment, automatic feeding mechanisms 901 and 902, and fabric cutting mechanism 906. It can realize automatic winding, constant tension winding, neat fabric cutting, and tight forming of roll material, greatly reducing manual operation and improving winding efficiency and roll material quality consistency.

[0046] The spunlace nonwoven fabric manufacturing production line of the present invention features smooth process connections, reasonable equipment layout, and stable transmission from raw material transportation, web forming, wrapping, spunlace, dewatering, drying to winding, achieving continuous production throughout the entire process, which is conducive to improving overall production efficiency and product stability.

[0047] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A spunlace nonwoven fabric manufacturing production line, characterized in that, It includes a cotton conveyor line (1), a liftable guide device (2), and a cotton-polyester machine (3) connected in sequence. The cotton-polyester machine (3) is located above the cotton conveyor line (1), and one end of the cotton-polyester machine (3) is rotatably connected to the liftable guide device (2); When the end of the liftable guide device (2) away from the cotton mill (3) is in a descending state, the cotton is conveyed to the cotton mill (3) through the liftable guide device (2); when the end of the liftable guide device (2) away from the cotton mill (3) is in a raised state, the cotton output from the cotton conveyor line (1) is directly conveyed to the cotton roll winding machine (5). The end of the cotton-polyester machine (3) away from the liftable guide device (2) is connected to the hydroentangling machine (6) via a bridge conveyor belt (4). The bridge conveyor belt (4) is connected to a cotton web wrapping machine, which is used to wrap the cotton sheets output from the cotton-polyester machine (3) with two layers of cotton web. The wrapped non-woven fabric is transported to the hydroentangling machine (6) via the bridge conveyor belt (4). The rear end of the spunlace machine (6) is connected to a rolling mill (7) and a dryer (8) in sequence. The rolling mill (7) is used to dehydrate the nonwoven fabric and recycle the pressed water to the spunlace machine (6). The dryer (8) is used to dry the nonwoven fabric. The other end of the dryer (8) is connected to a spunlace nonwoven fabric winding machine (9).

2. The spunlace nonwoven fabric manufacturing production line according to claim 1, characterized in that, The hydroentangling machine (6) includes a pre-wetted belt roller (600), a first hydroentangling mesh belt (601), and a second hydroentangling mesh belt (602); the first hydroentangling mesh belt (601) is located directly above the second hydroentangling mesh belt (602), and the pre-wetted belt roller (600) is located directly above the first hydroentangling mesh belt (601); When the nonwoven fabric is fed into the hydroentangling machine (6) from the bridge conveyor belt (4), it first passes over the pre-wetted belt roller (600), then winds around between the pre-wetted belt roller (600) and the first hydroentangling belt (601), then winds around between the first hydroentangling belt (601) and the second hydroentangling belt (602), and finally winds out from above the second hydroentangling belt (602).

3. The spunlace nonwoven fabric manufacturing production line according to claim 2, characterized in that, Below the second hydroentangled mesh belt (602), there is also an output belt (606), the end of which is set obliquely upward away from the bottom of the hydroentangled machine (6).

4. The spunlace nonwoven fabric manufacturing production line according to claim 3, characterized in that, A pre-wetting hydroentanglement component (603) is provided below the pre-wetting belt roller (600), and a first hydroentanglement mechanism (604) is provided between the double-layer mesh belts of the first hydroentanglement mesh belt (601). The water spray nozzle of the first hydroentanglement mechanism (604) faces upward and sprays water onto the nonwoven fabric passing above the first hydroentanglement mesh belt (601). A second hydroentanglement mechanism (605) is provided between the double-layer mesh belts of the second hydroentanglement mesh belt (602). The water spray nozzle of the second hydroentanglement mechanism (605) faces upward and sprays water onto the nonwoven fabric passing above the second hydroentanglement mesh belt (602).

5. The spunlace nonwoven fabric manufacturing production line according to claim 1, characterized in that, The liftable guide device (2) includes a lifting frame (201). One end of the lifting frame (201) is connected to the cotton and polyester machine (3) through a bearing seat. The two ends of the lifting frame (201) are respectively rotatably connected to a lifting active shaft (202) and a lifting passive shaft (204). The lifting active shaft (202) and the lifting passive shaft (204) are connected through a lifting belt (205). The lifting active shaft (202) is directly connected to the output end of the lifting motor (203).

6. A spunlace nonwoven fabric manufacturing production line according to any one of claims 1 to 5, characterized in that, The cotton-polyester machine (3) includes a cotton-polyester frame (301), which is rotatably connected to a number of upper rollers (304) and a number of lower rollers (305); the number of upper rollers (304) are at the same horizontal height, the number of lower rollers (305) are also at the same horizontal height, and the number of upper rollers (304) and the number of lower rollers (305) are staggered in the vertical direction.

7. A spunlace nonwoven fabric manufacturing production line according to any one of claims 6, characterized in that, Several upper rollers (304) and several lower rollers (305) are connected to the upper belt (303) and the lower belt (302); Several lower rollers (305) are located inside the upper belt (303), several upper rollers (304) are located outside the upper belt (303), and the upper belt (303) and the upper rollers (304) are separated by a lower belt (302). Several lower rollers (305) are located outside the lower belt (302), and several upper rollers (304) are located inside the lower belt (302). The lower belt (302) and the lower rollers (305) are separated by an upper belt (303). This causes the outer side of the upper belt (303) and the outer side of the lower belt (302) to fit together, forming a repeatedly curved conveying channel between the upper belt (303) and the lower belt (302), through which the nonwoven fabric passes.

8. A spunlace nonwoven fabric manufacturing production line according to any one of claims 1 to 5, characterized in that, The spunlace nonwoven fabric winding machine (9) includes several winding active rollers (904) synchronously driven by a winding motor (903); the several winding active rollers (904) are arranged in parallel and rotate in the same direction to assist the nonwoven fabric in being wound onto the paper tube (9054) sleeved on the winding air shaft (9053).

9. A spunlace nonwoven fabric manufacturing production line according to claim 8, characterized in that, A cotton roll lifting component (905) is provided above the plurality of winding active rollers (904); the cotton roll lifting component (905) includes a lifting frame (9051); The two ends of the take-up air shaft (9053) are slidably connected to the lifting frame (9051). The lifting frame (9051) is equipped with a pressing cylinder. The output end of the pressing cylinder is connected to the take-up air shaft (9053) and applies downward pressure to the take-up air shaft (9053).

10. A spunlace nonwoven fabric manufacturing production line according to claim 9, characterized in that, The winding drive roller (904) is also provided with a first winding feed mechanism (901) and a second winding feed mechanism (902) at the end near the dryer (8); the winding drive roller (904) is provided with a fabric cutting mechanism (906) at the end away from the dryer (8). The first winding and feeding mechanism (901) and the second winding and feeding mechanism (902) have the same structure; The first winding and feeding mechanism (901) includes a feeding pre-compression roller (9012) and a feeding drive roller (9013). The end of the feeding drive roller (9013) is connected to the feeding motor (9014). The feeding pre-compression roller (9012) is connected to the feeding pre-compression frame (9011). The feeding pre-compression frame (9011) is provided with a feeding pre-compression cylinder. The feeding pre-compression cylinder applies pressure to the feeding pre-compression roller (9012) toward the feeding drive roller (9013).

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