Adjustable warehouse conveying and opening production line for spunlace nonwoven fabric

Abstract

The application discloses an adjustable warehouse-dividing conveying and opening production line for water-jet non-woven fabric, which comprises two weighing machines, two mixing warehouses, and an adjustable conveying pipeline connecting the weighing machine group and the mixing warehouses; one end of a first conveying pipeline and a second conveying pipeline is respectively connected with different weighing machines, and the other end is respectively connected with different mixing warehouses; a reversing device is arranged on the second conveying pipeline; one end of a third conveying pipeline is connected with the weighing machine, and the other end is connected with the reversing device; the second conveying pipeline and the third conveying pipeline can be replaced with each other through the reversing device; the first conveying pipeline and the second conveying pipeline are combined to be used for fiber conveying, so that an AA surface double-layer structure can be formed; the first conveying pipeline and the third conveying pipeline are combined, so that an AB surface structure is formed; the reversing device is cut back to the second conveying pipeline, so that the AA surface double-layer structure can be quickly switched, the production line is convenient and fast, the addition of other auxiliary equipment is reduced, the cost and labor are reduced, the flexibility is high, and product diversification is achieved.

Description

Technical Field

[0001] This invention relates to the field of nonwoven fabric production technology, and more particularly to an adjustable compartmentalized conveying and cleaning production line for spunlace nonwoven fabric. Background Technology

[0002] Spunlace nonwoven fabric is first made by opening and cleaning fibers into a web. High pressure is used to make water flow into fine fibers, forming high-pressure water jets. One or more layers of fiber web are "spun" to form a high-strength nonwoven fabric. The production of spunlace nonwoven fabric is completed on an automated production line.

[0003] In existing technologies, spunlace nonwoven fabric production lines first weigh, clean, and comb the fibers into a web, then perform spunlace and drying, and finally cut and package them. However, the existing fiber cleaning process usually involves weighing different fibers using a weighing machine, then directly laminating and mixing them onto a conveyor belt, which enters a mixing bin. One or more fibers are directly mixed together to form a single or mixed structure product. To achieve the layering of double-layer fiber webs, such as forming an AB-side structure product, additional auxiliary equipment is required, increasing costs. Additional manual operation is also required, increasing labor costs. As a result, existing spunlace nonwoven fabric production lines have poor flexibility and produce only a single type of product.

[0004] Moreover, when hydroentangling the fiber web, the existing water circulation system cannot effectively remove light, floating flocs that are difficult to settle in the water. The water that comes into contact with the fiber web will have an odor and bacteria, and the repeated circulation will also contaminate the fiber web. Summary of the Invention

[0005] This invention aims to overcome the shortcomings of the existing technology by providing an adjustable compartmentalized conveying and cleaning production line for spunlace nonwoven fabric. The invention uses a weighing machine to separately weigh the fibers, and after they meet the standards, they are conveyed through adjustable pipelines to different mixing compartments for mixing. The fibers are then carded and laid into a multi-layered fiber web using a carding and web-laying device, achieving a double-layered fiber web effect.

[0006] The technical solution adopted by this invention to solve its technical problem is: an adjustable compartmentalized conveying and cleaning production line for spunlace nonwoven fabric, comprising a weighing unit, a mixing bin, a carding and web-laying device, a spunlace machine, a dryer, and a slitting and packaging device arranged sequentially. The weighing unit includes two or more weighing machines, and the mixing bin is provided with two or more. The weighing unit and the mixing bin are connected through an adjustable conveying pipeline. The adjustable conveying pipeline includes a first conveying pipeline, a second conveying pipeline, and a third conveying pipeline. One end of the first conveying pipeline and the second conveying pipeline are respectively connected to different weighing machines, and the other end is respectively connected to different mixing bins. A reversing device is provided on the second conveying pipeline, and one end of the third conveying pipeline is connected to a weighing machine, and the other end is connected to the reversing device.

[0007] Preferably, the weighing unit further includes a discharge port located below the weighing machine, and the discharge ports of two or more weighing machines are connected in series via pipes; the first conveying pipe and the second conveying pipe are both connected to the outlet of the series pipes via connectors; and the third conveying pipe is connected to the discharge port.

[0008] Preferably, the reversing device includes a housing, on which a first reversing port, a second reversing port, and a third reversing port are provided. The first and second reversing ports are connected to a second conveying pipeline; the third reversing port is connected to a third conveying pipeline; the housing also contains a reversing pipe, one end of which is connected to the first reversing port, and the other end is a movable end, which is movably connected to the second or third reversing port.

[0009] Preferably, the reversing tube is a retractable flexible tube, and a supporting steel ring is provided on the outer periphery of the movable end of the reversing tube.

[0010] Preferably, the reversing device further includes a rotating rod, a telescopic rod, and a fixed connecting rod; the fixed connecting rod is vertically fixedly connected to one side of the supporting steel ring; one end of the rotating rod is rotatably connected to the position between the second and third reversing ports on the housing, and the other end is sleeved on the fixed connecting rod; one end of the telescopic rod is rotatably connected to the first reversing port on the housing, and the other end is sleeved on the fixed connecting rod.

[0011] Preferably, the rotating rod is provided with a positioning block, the positioning block is provided with a pin hole, the pin hole is provided with a positioning pin, and the positioning block is fixed to the housing by the positioning pin.

[0012] Preferably, the combing and web-laying equipment includes a double-layer laying mechanism, which includes a pressure roller, an upper conveyor line, and a lower conveyor line. The output side of the upper conveyor line and the output side of the lower conveyor line are close to each other, and the pressure roller is located behind the output side of the upper and lower conveyor lines.

[0013] Preferably, the hydroentangling machine includes a roller for winding a fiber web and a hydroentangling head facing the roller, with a water tank provided below the roller.

[0014] Preferably, it also includes a water circulation system, which includes a suction pump installed in the water tank. The suction pump is connected in sequence to an intermediate water tank, a filter, an elevated water tank, and a high-pressure water supply pump via water pipes. The high-pressure water supply pump is connected to a water jet nozzle.

[0015] Preferably, the water from the suction pump to the intermediate water tank undergoes a mixing reaction and a horizontal air flotation process, the mixing reaction including the addition of chemicals and ozone; the water from the high-level water tank to the high-pressure water supply pump is subjected to ultraviolet sterilization; the filtration method of the filter includes sand filtration, metal filtration and bag filtration.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0017] (1) Weigh the fiber weight separately. After the weight meets the standard, the fiber is mixed in different mixing chambers through an adjustable conveying pipeline. The fiber mixed in different mixing chambers is combed and laid into a multi-layer fiber web by the carding and web laying equipment to achieve the layering of double-layer fiber web.

[0018] (2) The second conveying pipeline and the third conveying pipeline can be replaced by each other through the reversing device; the fiber conveying adopts the combination of the first conveying pipeline and the second conveying pipeline to form an AA-face double-layer structure, and adopts the combination of the first conveying pipeline and the third conveying pipeline to form an AB-face structure; the reversing device switches back to the second conveying pipeline, which can quickly switch to the AA-face double-layer structure, which is convenient and fast, reduces the addition of other auxiliary equipment, reduces costs and labor, and makes the spunlace nonwoven fabric production line highly flexible and diversified in products.

[0019] (3) The first and second conveying pipelines are connected to the outlet of the series-connected pipelines through connectors; they are connected together to increase the output of the weighing machine; the third conveying pipeline is set up separately to ensure timely switching of the fiber web structure.

[0020] (4) The housing of the reversing device is also provided with a reversing pipe, the movable end of which is movably connected to the second reversing port or the third reversing port; when the reversing pipe is turned to the second reversing port, the second conveying pipeline is connected, and the double-layer structure of the AA surface is switched; when turned to the third reversing port, the third conveying pipeline is connected, forming the structure of the AB surface.

[0021] (5) Rotate the rotating rod and the fixed connecting rod to rotate around it. The reversing tube retracts and the telescopic rod rotates accordingly. It retracts synchronously with the reversing tube, which plays a guiding and supporting role. When the reversing tube gradually reaches the third reversing port, the reversing tube extends and aligns with the third reversing port to connect. The telescopic rod extends synchronously with the reversing tube.

[0022] (6) When the rotating rod is rotated to the third reversing port, the positioning pin is inserted into the pin hole of the positioning block and the preset hole on the housing to play a fixing role; when it is rotated to the second reversing port, the reverse is also true.

[0023] (7) After the pressure roller of the double-layer laying mechanism is located on the side of the upper and lower conveyor lines, the fiber layer from the mixing chamber goes to the upper and lower conveyor lines respectively, and the two gradually come together and are laid on the pressure roller to form a two-layer fiber web.

[0024] (8) The water in the tank is pumped to the intermediate water tank by a suction pump, and then filtered by a filter to remove odors and bacteria and reduce the pollution of the fiber mesh. The intermediate water tank stores water in reverse osmosis, and the filtered water is stored in the high-level water tank and discharged to the water head by a high-pressure water supply pump.

[0025] (9) The water is further disinfected by adding disinfectant and impurity remover and ozone; the light flocs that are difficult to settle in the water can be effectively removed by the horizontal flow flotation method; the water from the high-level water tank to the high-pressure water supply pump is sterilized by ultraviolet light; the sterilization effect is further enhanced before high-pressure water is sprayed onto the fiber web to avoid bringing bacteria and other pathogens to the fiber web, which would lead to deterioration of the non-woven fabric in the later stage; the filter includes sand filtration, metal filtration and bag filtration, and multiple filtration methods are set to improve the effect of filtering impurities. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the production line of the present invention;

[0027] Figure 2 This is a schematic diagram of an adjustable delivery pipeline.

[0028] Figure 3 A partial side view diagram of the net-laying equipment;

[0029] Figure 4 A schematic diagram of the hydroentangling machine and water circulation system installation;

[0030] Figure 5 This is a water circulation flow chart;

[0031] Figure 6 This is a side sectional view of the commutation device;

[0032] Figure 7 for Figure 6 Sectional view at point AA.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1-Weighing unit, 11-Weighing machine, 12-Discharge port;

[0035] 2-Mixed Container;

[0036] 3- Combing and web-laying equipment, 31- Pressure roller, 32- Upper conveyor line, 33- Lower conveyor line;

[0037] 4- Hydroentanglement machine, 41- Roller, 42- Hydroentanglement head, 43- Water tank;

[0038] 5-Dryer;

[0039] 6-Slitting and packaging equipment;

[0040] 7-Adjustable delivery pipeline; 70-Connector; 71-First delivery pipeline; 72-Second delivery pipeline; 73-Third delivery pipeline;

[0041] 8-Reversing device, 81-Housing, 811-First reversing port, 812-Second reversing port, 813-Third reversing port, 82-Reversing tube, 83-Support steel ring, 84-Rotating rod, 85-Telescopic rod, 86-Positioning block, 87-Positioning pin, 88-Fixing link;

[0042] 9-Water circulation system, 91-Suction pump, 92-Intermediate water tank, 93-Filter, 94-High-level water tank, 95-High-pressure water supply pump. Detailed Implementation

[0043] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this invention. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments.

[0044] Example

[0045] The following is in conjunction with the appendix Figures 1-7 To further illustrate this invention, an adjustable compartmentalized conveying and cleaning production line for spunlace nonwoven fabric is provided, such as... Figure 1 As shown, the system includes a weighing unit 1, a mixing chamber 2, a carding and web-laying device 3, a hydroentangling machine 4, a dryer 5, and a slitting and packaging device 6 arranged in sequence. The weighing unit 1 includes two or more weighing machines 11, and the mixing chamber 2 is provided with two or more. The weighing unit 1 and the mixing chamber 2 are connected by an adjustable conveying pipeline 7. The weighing machines 11 weigh the fibers respectively, and after they meet the standards, they enter different mixing chambers 2 through the adjustable conveying pipeline 7 for mixing. The carding and web-laying device 3 then cards and lays the fibers mixed in different mixing chambers 2 into a multi-layer fiber web, realizing the layering of double-layer fiber webs, such as products with an AB side structure.

[0046] like Figure 1 and 2 As shown, the adjustable conveying pipeline 7 includes a first conveying pipeline 71, a second conveying pipeline 72 and a third conveying pipeline 73; one end of the first conveying pipeline 71 and the second conveying pipeline 72 are respectively connected to different weighing machines 11, and the other end is respectively connected to different mixing chambers 2; a reversing device 8 is provided on the second conveying pipeline 72, and one end of the third conveying pipeline 73 is connected to the weighing machine 11, and the other end is connected to the reversing device 8.

[0047] Both the first conveying pipeline 71 and the second conveying pipeline 72 can transport the fibers weighed by the weighing machine 11 to the mixing chamber 2, while the third conveying pipeline 73 can replace the second conveying pipeline 72 to the mixing chamber 2 via the reversing device 8. The fiber conveying uses the combination of the first conveying pipeline 71 and the second conveying pipeline 72 to form an AA-faced double-layer structure. The combination of the first conveying pipeline 71 and the third conveying pipeline 73 allows the weighing machine 11 connected to the third conveying pipeline 73 to weigh different fibers, forming an AB-faced structure. The reversing device 8 can switch back to the second conveying pipeline 72 to quickly switch to the AA-faced double-layered structure, which is convenient and fast, reduces the need for other auxiliary equipment, reduces costs and labor, and makes the spunlace nonwoven fabric production line highly flexible. If mixed fibers are put into the weighing machine 11 connected to the third conveying pipeline 73, structures such as A (AB) will be formed, resulting in product diversification.

[0048] like Figure 1 and 2 As shown, the weighing unit 1 also includes a discharge port 12 located below the weighing machine 11. The discharge ports 12 of two or more weighing machines 11 are connected in series through pipes. The first conveying pipe 71 and the second conveying pipe 72 are both connected to the outlet of the connected pipes through connectors 70. When connected in series, the discharge capacity of the weighing machine 11 is increased. The third conveying pipe 73 is connected to the discharge port 12. The third conveying pipe 73 is set up separately to ensure timely switching of the fiber web structure.

[0049] like Figure 2 , 6 As shown in Figure 7, the reversing device 8 includes a housing 81, on which a first reversing port 811, a second reversing port 812, and a third reversing port 813 are provided. The first reversing port 811 and the second reversing port 812 are connected to the second conveying pipeline 72; the third reversing port 813 is connected to the third conveying pipeline 73. A reversing pipe 82 is also provided inside the housing 81. One end of the reversing pipe 82 is connected to the first reversing port 811, and the other end is a movable end, which is movably connected to either the second reversing port 812 or the third reversing port 813. When the reversing pipe 82 is switched to the second reversing port 812, the second conveying pipeline 72 is connected, switching to the double-layer structure of the AA side; when switched to the third reversing port 813, the third conveying pipeline 73 is connected, forming the structure of the AB side.

[0050] like Figure 6 and 7 As shown, the reversing pipe 82 is a retractable flexible hose, and a supporting steel ring 83 is provided on the outer periphery of the movable end of the reversing pipe 82.

[0051] like Figure 6 and 7As shown, the reversing device 8 also includes a rotating rod 84, a telescopic rod 85, and a fixed connecting rod 88; the fixed connecting rod 88 is vertically fixedly connected to one side of the supporting steel ring 83; one end of the rotating rod 84 is rotatably connected to the position between the second reversing port 812 and the third reversing port 813 on the housing 81, and the other end is sleeved on the fixed connecting rod 88; one end of the telescopic rod 85 is rotatably connected to the first reversing port 811 on the housing 81, and the other end is sleeved on the fixed connecting rod 88.

[0052] As shown in the figure, the reversing tube 82 is connected to the second reversing port 812. Rotating the rotating rod 81 causes the fixed connecting rod 88 to rotate around, and the reversing tube 82 retracts. The telescopic rod 85 rotates accordingly and retracts synchronously with the reversing tube 82, playing a guiding and supporting role. When the reversing tube 82 gradually reaches the third reversing port 813, the reversing tube 82 extends and aligns with the third reversing port 813, and the telescopic rod 85 extends synchronously with the reversing tube 82.

[0053] like Figure 6 As shown, a positioning block 86 is provided on the rotating rod 84, and a pin hole is provided on the positioning block 86. A positioning pin 87 is provided in the pin hole, and the positioning block 86 is fixed to the housing 81 by the positioning pin 87.

[0054] When the rotating rod 81 rotates to the third reversing port 813, the positioning pin 87 is inserted into the pin hole of the positioning block 86 and the preset hole on the housing 81 to fix it; the same applies when it rotates to the second reversing port 812.

[0055] like Figure 1 and 3 As shown, the carding and web-laying equipment 3 includes a double-layer laying mechanism, which comprises a pressure roller 31, an upper conveyor line 32, and a lower conveyor line 33. The output sides of the upper conveyor line 32 and the lower conveyor line 33 are close together, and the pressure roller 31 is located behind the output sides of the upper and lower conveyor lines 32 and 33. The fiber layers from the mixing chamber 2 are fed to the upper conveyor line 32 and the lower conveyor line 33 respectively, and the two gradually come together, eventually being laid into a two-layer fiber web by the pressure roller 31.

[0056] like Figure 4 As shown, the hydroentangling machine 4 includes a roller 41 for winding a fiber web and a hydroentangling head 42 facing the roller 41. A water tank 43 is provided below the roller 41. The hydroentangling head 42 performs "hydroentangling" on the fiber web wound on the roller 41, and the water flows into the water tank 43.

[0057] like Figure 4 and 5 As shown, it also includes a water circulation system 9, which includes a suction pump 91 installed in the water tank 43. The suction pump 91 is connected in sequence to an intermediate water tank 92, a filter 93, an elevated water tank 94 and a high-pressure water supply pump 95 via water pipes. The high-pressure water supply pump 95 is connected to the water jet head 42.

[0058] Water in the water tank 43 is pumped to the intermediate water tank 92 by the suction pump 91, and then filtered by the filter 93 to remove odors and bacteria and reduce the contamination of the fiber mesh. The intermediate water tank 92 stores water in reverse osmosis, and the filtered water is stored in the high-level water tank 94 and discharged to the water spout 42 by the high-pressure water supply pump 95.

[0059] like Figure 5 As shown, the water from the suction pump 91 to the intermediate water tank 92 undergoes a mixing reaction and horizontal air flotation. The mixing reaction includes the addition of chemicals and ozone. By adding disinfecting and impurity-removing chemicals and ozone to the water, the water is further disinfected. The horizontal air flotation method can effectively remove light, floating flocs that are difficult to settle in the water.

[0060] The water from the high-level water tank 94 to the high-pressure water supply pump 95 is sterilized with ultraviolet light; the sterilization effect is further enhanced before high-pressure water is sprayed onto the fiber web to avoid bringing bacteria and other pathogens onto the fiber web, which could lead to deterioration of the nonwoven fabric later.

[0061] The filter 93 uses various filtration methods, including sand filtration, metal filtration, and bag filtration, to improve the efficiency of filtering impurities.

[0062] In the description of this invention, the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only to describe the invention and not to require the invention to be constructed or operated in a specific orientation; therefore, they should not be construed as limitations on the invention. The terms "connected" and "linked" in this invention should be interpreted broadly. For example, they can refer to a connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms based on the specific circumstances.

[0063] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments that can be applied to other fields. However, any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. An adjustable compartmentalized conveying and cleaning production line for spunlace nonwoven fabric, comprising a weighing unit (1), a mixing bin (2), a carding and web-laying device (3), a spunlace machine (4), a dryer (5), and a slitting and packaging device (6) arranged sequentially, characterized in that, The weighing unit (1) includes two or more weighing machines (11), and the mixing chamber (2) is provided with two or more weighing machines. The weighing unit (1) and the mixing chamber (2) are connected by an adjustable conveying pipeline (7). The adjustable conveying pipeline (7) includes a first conveying pipeline (71), a second conveying pipeline (72) and a third conveying pipeline (73); one end of the first conveying pipeline (71) and the second conveying pipeline (72) are respectively connected to different weighing machines (11), and the other end is respectively connected to different mixing chambers (2); The second conveying pipeline (72) is equipped with a reversing device (8), and one end of the third conveying pipeline (73) is connected to the weighing machine (11), and the other end is connected to the reversing device (8); The reversing device (8) includes a housing (81), on which a first reversing port (811), a second reversing port (812), and a third reversing port (813) are provided. The first reversing port (811) and the second reversing port (812) are connected to the second conveying pipeline (72); the third reversing port (813) is connected to the third conveying pipeline (73). The housing (81) is also provided with a reversing pipe (82), one end of which is connected to the first reversing port (811), and the other end is a movable end, which is movably connected to the second reversing port (812) or the third reversing port (813).

2. The adjustable compartmentalized conveying and cleaning production line for spunlace nonwoven fabric according to claim 1, characterized in that, The weighing unit (1) also includes a discharge port (12) located below the weighing machine (11), and the discharge ports (12) of two or more weighing machines (11) are connected in series by pipes; the first conveying pipe (71) and the second conveying pipe (72) are both connected to the outlet of the connected pipes through connectors (70); the third conveying pipe (73) is connected to the discharge port (12).

3. The adjustable compartmentalized conveying and cleaning production line for spunlace nonwoven fabric according to claim 1, characterized in that, The reversing pipe (82) is a retractable hose, and a supporting steel ring (83) is provided on the outer periphery of the movable end of the reversing pipe (82).

4. The adjustable compartmentalized conveying and cleaning production line for spunlace nonwoven fabric according to claim 3, characterized in that, The reversing device (8) also includes a rotating rod (84), a telescopic rod (85), and a fixed connecting rod (88). The fixed connecting rod (88) is vertically fixed to one side of the supporting steel ring (83); one end of the rotating rod (84) is rotatably connected to the position between the second reversing port (812) and the third reversing port (813) on the housing (81), and the other end is sleeved on the fixed connecting rod (88); one end of the telescopic rod (85) is rotatably connected to the first reversing port (811) on the housing (81), and the other end is sleeved on the fixed connecting rod (88).

5. The adjustable compartmentalized conveying and cleaning production line for spunlace nonwoven fabric according to claim 4, characterized in that, The rotating rod (84) is provided with a positioning block (86), the positioning block (86) is provided with a pin hole, the pin hole is provided with a positioning pin (87), and the positioning block (86) is fixed to the housing (81) by the positioning pin (87).

6. The adjustable compartmentalized conveying and cleaning production line for spunlace nonwoven fabric according to claim 1, characterized in that, The combing and web laying equipment (3) includes a double-layer laying mechanism, which includes a pressure roller (31), an upper conveyor line (32) and a lower conveyor line (33). The side of the upper conveyor line (32) and the side of the lower conveyor line (33) are close to each other, and the pressure roller (31) is located behind the side of the upper conveyor line (32) and the lower conveyor line (33).

7. The adjustable compartmentalized conveying and cleaning production line for spunlace nonwoven fabric according to claim 1, characterized in that, The hydroentanglement machine 4 includes a roller (41) for winding a fiber web and a hydroentanglement head (42) facing the roller (41), with a water tank (43) provided below the roller (41).

8. The adjustable compartmentalized conveying and cleaning production line for spunlace nonwoven fabric according to claim 7, characterized in that, It also includes a water circulation system (9), which includes a suction pump (91) installed in a water tank (43). The suction pump (91) is connected in sequence to an intermediate water tank (92), a filter (93), an elevated water tank (94), and a high-pressure water supply pump (95) via water pipes. The high-pressure water supply pump (95) is connected to a water jet nozzle (42).

9. The adjustable compartmentalized conveying and cleaning production line for spunlace nonwoven fabric according to claim 8, characterized in that, The water from the suction pump (91) to the intermediate water tank (92) is subjected to a mixing reaction and a horizontal air flotation, the mixing reaction including the addition of reagents and ozone; The water from the high-level water tank (94) to the high-pressure water supply pump (95) is sterilized by ultraviolet light. The filtration methods of the filter (93) include sand filtration, metal filtration and bag filtration.

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