A rapid cooling nonwoven web former

Abstract

The utility model relates to the technical field of non - woven fabric, specifically provide a kind of non - woven fabric web former of quick cooling, to solve the problem of higher temperature of non - woven fabric exported by existing web former. The utility model provides the non - woven fabric web former of quick cooling, including rack, web forming cylinder and output roller, web forming cylinder is configured to adsorb and stack filamentous fiber to form non - woven fabric;Non - woven fabric is around and connects output roller, cooling pipeline is provided in output roller, the input end of cooling pipeline is communicated with the output end of water supply pump by pipeline;Wherein, the water supply amount of water supply pump is inversely proportional to the rotational speed of web forming cylinder. The higher the rotational speed of web forming cylinder, the thinner the thickness of the non - woven fabric formed, the lower the heat accumulated by non - woven fabric and the better the heat dissipation effect, at this time, the water supply amount of water supply pump can be reduced to reduce the energy consumption of cooling.

Description

Technical Field

[0001] This utility model relates to the technical field of nonwoven fabrics, specifically providing a nonwoven fabric web forming machine with rapid cooling. Background Technology

[0002] The production of nonwoven fabric using meltblown technology requires a web-forming machine. This machine consists of a frame, a web-forming roller, and an output roller. The web-forming roller has a hollow center and a perforated surface covered by a receiving screen with a high mesh count. A fan is connected to the hollow area of ​​the web-forming roller to create a negative pressure environment, which attracts the meltblown fibers onto the receiving screen, causing them to stack and form the nonwoven fabric. The nonwoven fabric formed on the web-forming roller is then guided by the output roller and detached from the web-forming machine for further processing, including shaping and slitting.

[0003] The web forming machine needs to adsorb and stack the semi-molten filaments to form a continuous nonwoven fabric. During the formation of the nonwoven fabric, a lot of heat needs to be released at the web forming machine. As the heat accumulates at the web forming machine, the temperature of the nonwoven fabric output from the web forming machine is likely to be high, which is not conducive to the subsequent processing of the nonwoven fabric. Utility Model Content

[0004] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problem of high temperature of nonwoven fabric output by existing web forming machines.

[0005] In a first aspect, this utility model provides a rapid cooling nonwoven fabric forming machine, the forming machine being disposed below a meltblown device configured to spray molten filamentous fibers. The forming machine includes: a frame; a forming roller, horizontally arranged and rotatably connected to the frame in a horizontal direction, one end of the forming roller being connected to a negative pressure fan via a pipe, the negative pressure fan being configured to provide negative pressure to the forming roller, the forming roller being configured to adsorb and stack the filamentous fibers to form a nonwoven fabric; an output roller, horizontally arranged and rotatably connected to the frame in a horizontal direction, the nonwoven fabric being wound around the output roller, the output roller having a cooling pipe disposed therein, the input end of the cooling pipe being connected to the output end of a water supply pump via a pipe; wherein, the water supply volume of the water supply pump is inversely proportional to the rotational speed of the forming roller.

[0006] By adopting the above technical solution, the water supply pump supplies water to the cooling pipes. The water flowing through the cooling pipes can cool the output rollers. The cooled output rollers can reduce the temperature of the nonwoven fabric wrapped around them, so as to facilitate the processing of the nonwoven fabric in subsequent processes. In addition, the higher the rotation speed of the web forming rollers, the thinner the nonwoven fabric formed, the lower the heat accumulated in the nonwoven fabric and the better the heat dissipation effect. At this time, the water supply of the water supply pump can be reduced to reduce the energy consumption of cooling. At the same time, the lower the rotation speed of the web forming rollers, the thicker the nonwoven fabric formed, the higher the heat accumulated in the nonwoven fabric and the worse the heat dissipation effect. At this time, the water supply of the water supply pump needs to be increased to ensure the cooling effect of the nonwoven fabric.

[0007] In the specific embodiment of the above-mentioned rapid cooling nonwoven fabric forming machine, the output roller includes a roller body and a roller shaft. The roller body and the roller shaft are coaxially arranged. The inside of the roller body is hollow. The cooling pipe is located in the hollow area of ​​the roller body. The inlet and outlet of the cooling pipe are located at the two ends of the output roller and are coaxially arranged with the roller shaft.

[0008] In the specific embodiment of the above-mentioned rapid cooling nonwoven fabric forming machine, the roller body is filled with thermally conductive filler.

[0009] By adopting the above technical solution, the heat-conducting filler can improve the heat exchange efficiency between the cooling pipe and the roller, and improve the cooling effect of the output roller on the nonwoven fabric.

[0010] In the specific embodiment of the above-mentioned rapid cooling nonwoven fabric forming machine, the cooling pipes are arranged in a serpentine pattern within the roller body.

[0011] By adopting the above technical solution, the serpentine arrangement of the cooling pipes can increase the total length of the arrangement, increase the heat exchange area between the cooling water and the output roller, and help improve the cooling effect of the output roller.

[0012] In the specific embodiment of the above-mentioned rapid cooling nonwoven fabric forming machine, the cooling pipeline includes a first manifold and a second manifold, as well as multiple sub-pipelines. One end of each sub-pipeline is connected to the first manifold and the other end is connected to the second manifold.

[0013] By adopting the above technical solution, the arrangement of multiple sub-pipes can increase the heat exchange area between the cooling pipes and the output roller, which helps to improve the cooling effect of the output roller.

[0014] In the specific embodiment of the above-mentioned rapid cooling nonwoven fabric forming machine, multiple output rollers are provided, and the nonwoven fabric is wound around multiple output rollers.

[0015] By adopting the above technical solution, the heat exchange area between the output roller and the nonwoven fabric can be increased, thereby improving the cooling effect on the nonwoven fabric.

[0016] In a specific embodiment of the above-described rapid cooling nonwoven fabric forming machine, the nonwoven fabric has a first side and a second side, the first side of the nonwoven fabric is wound around at least one of the output rollers, and the second side of the nonwoven fabric is wound around at least one of the output rollers.

[0017] By adopting the above technical solution, different output rollers can cool the first and second sides of the nonwoven fabric, thereby improving the cooling effect on the nonwoven fabric.

[0018] In a specific embodiment of the above-mentioned rapid cooling nonwoven fabric forming machine, the rapid cooling nonwoven fabric forming machine further includes a water storage tank and a cooler. The output end of the cooling pipe is connected to the input end of the cooler, the output end of the cooler is connected to the water storage tank, and the input end of the water supply pump is connected to the water storage tank.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The nonwoven fabric forming machine with rapid cooling provided by this utility model includes a frame, a forming roller, and an output roller; the forming roller is horizontally arranged and rotatably connected to the frame in the horizontal direction, and is configured to adsorb and stack filamentous fibers to form a nonwoven fabric; the output roller is horizontally arranged and rotatably connected to the frame in the horizontal direction, the nonwoven fabric is wrapped around the output roller, and a cooling pipe is provided inside the output roller, the input end of the cooling pipe is connected to the output end of a water supply pump through a pipe; wherein, the water supply of the water supply pump is inversely proportional to the rotational speed of the forming roller. The water pump supplies water to the cooling pipes. The water flowing through the cooling pipes cools the output rollers, which in turn lowers the temperature of the nonwoven fabric wound around them, facilitating subsequent processing of the nonwoven fabric. Furthermore, the higher the rotational speed of the web-forming rollers, the thinner the resulting nonwoven fabric, resulting in lower heat accumulation and better heat dissipation. In this case, the water supply from the pump can be reduced to decrease cooling energy consumption. Conversely, the lower the rotational speed of the web-forming rollers, the thicker the resulting nonwoven fabric, resulting in lower heat accumulation and poorer heat dissipation. In this case, the water supply from the pump needs to be increased to ensure effective cooling of the nonwoven fabric. Attached Figure Description

[0021] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0022] Figure 1 This is a schematic diagram of a nonwoven fabric web forming machine provided by this utility model.

[0023] Figure 2 This is a cross-sectional view of the web forming roller provided by this utility model.

[0024] Figure 3 This is a cross-sectional view of the output roller provided by this utility model.

[0025] Figure 4 This is a schematic diagram of the water supply system provided by this utility model.

[0026] Figure 5 This is a schematic diagram of another nonwoven fabric web forming machine provided by this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Frame; 2. Forming roller; 21. Receiving screen; 3. Output roller; 31. Roller body; 32. Roller shaft; 4. Cooling pipes; 41. First manifold; 42. Second manifold; 43. Sub-pipes; 5. Water supply system; 51. Water storage tank; 52. Cooler; 53. Water supply pump. Detailed Implementation

[0029] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0030] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] To address the issue of high temperatures in nonwoven fabrics produced by existing web-forming machines, this invention provides a rapidly cooling nonwoven fabric web-forming machine. This machine is positioned below a meltblown device, which is configured to spray molten filaments. The web-forming machine is configured to adsorb and stack the filaments to form a nonwoven fabric.

[0033] refer to Figure 1The rapid cooling nonwoven fabric forming machine includes a frame 1, a forming roller 2, an output roller 3, and a water supply system. The frame 1 is fixed to the ground or a platform. The forming roller 2 is horizontally positioned and rotatably connected to the frame 1 in the horizontal direction. The output roller 3 is horizontally positioned and rotatably connected to the frame 1 in the horizontal direction. The output roller 3 is parallel to the forming roller 2.

[0034] refer to Figure 2 The forming roller 2 has a hollow center and a perforated surface. The surface of the forming roller 2 is covered with a mesh receiving screen 21, which has a high mesh count. One end of the forming roller 2 is connected to a negative pressure fan via a pipe. The negative pressure fan creates a negative pressure state in the hollow area of ​​the forming roller 2, thereby adsorbing the filamentous fibers onto the receiving screen 21, causing the filamentous fibers to stack on the receiving screen 21 to form a nonwoven fabric.

[0035] refer to Figure 3 and Figure 4 The output roller 3 is equipped with a cooling pipe 4. The input and output ends of the cooling pipe 4 are coaxially arranged with the rotating shaft of the output roller 3. The input and output ends of the cooling pipe 4 are connected to the connected pipes via rotary joints to ensure the normal rotation of the output roller 3. The water supply system 5 includes a water pump 53. The output end of the water pump 53 is connected to the input end of the cooling pipe 4. The water pump 53 supplies water to the cooling pipe 4, and the water flowing through the cooling pipe 4 cools the output roller 3. The cooled output roller 3 reduces the temperature of the nonwoven fabric wound around it, facilitating subsequent processing of the nonwoven fabric. The output and input ends of the cooling pipe 4 are connected to other fixed pipes via rotary water joints to achieve a rotary seal.

[0036] In this example, the water supply of the water pump 53 is inversely proportional to the rotational speed of the web-forming roller 2. With the meltblown amount of the meltblown device remaining constant, the thickness of the formed nonwoven fabric is adjusted by the rotational speed of the web-forming roller 2. The higher the rotational speed of the web-forming roller 2, the thinner the formed nonwoven fabric, the lower the accumulated heat, and the better the heat dissipation effect. In this case, the water supply of the water pump 53 can be reduced to decrease cooling energy consumption. Conversely, the lower the rotational speed of the web-forming roller 2, the thicker the formed nonwoven fabric, the higher the accumulated heat, and the worse the heat dissipation effect. In this case, the water supply of the water pump 53 needs to be increased to ensure the cooling effect on the nonwoven fabric.

[0037] In some examples, the water supply of the water pump 53 can be adjusted by the control unit based on the rotational speed of the forming roller 2. For example, the control unit stores a preset function relating the rotational speed of the forming roller 2 to the rotational speed of the water pump 53, and adjusts the rotational speed of the water pump 53 in real time according to the rotational speed of the forming roller 2 to adjust the water supply.

[0038] The water supply system 5 also includes a water storage tank 51 and a cooler 52. The output end of the cooling pipe 4 is connected to the input end of the cooler 52, the output end of the cooler 52 is connected to the water storage tank 51, and the input end of the water supply pump 53 is connected to the water storage tank 51.

[0039] In a specific example of this utility model, the output roller 3 includes a roller body 31 and a roller shaft 32. The roller body 31 and the roller shaft 32 are coaxially arranged. The roller body 31 is hollow inside. The cooling pipe 4 is located within the hollow area of ​​the roller body 31, and the inlet and outlet of the cooling pipe 4 are located at both ends of the output roller 3 and are coaxially arranged with the roller shaft 32. The roller body 31 is filled with a thermally conductive filler, which can improve the heat exchange efficiency between the cooling pipe 4 and the roller body 31, thereby improving the cooling effect of the output roller 3 on the nonwoven fabric. For example, the material of the thermally conductive filler can be alumina, magnesium oxide, zinc oxide, aluminum nitride, boron nitride, silicon carbide, etc.

[0040] In some examples, the cooling pipes 4 are arranged in a serpentine pattern within the roller body 31. The serpentine arrangement of the cooling pipes 4 can increase the heat exchange area with the output roller 3, which helps to improve the cooling effect of the output roller 3.

[0041] In other examples, refer to Figure 3 The cooling pipe 4 includes a first manifold 41, a second manifold 42, and multiple sub-pipes 43. One end of each sub-pipe 43 is connected to the first manifold 41, and the other end is connected to the second manifold 42. The arrangement of multiple sub-pipes 43 increases the heat exchange area between the cooling pipe 4 and the output roller 3, thus improving the cooling effect of the output roller 3. Furthermore, even if one sub-pipe 43 becomes blocked, it will not significantly affect the water flow rate, and it also facilitates cleaning of any blockages in the sub-pipe 43.

[0042] In the examples of this utility model, combined with Figure 5 Multiple output rollers 3 can be set, and multiple output rollers 3 can be wound around the nonwoven fabric to increase the heat exchange area between the output rollers 3 and the nonwoven fabric and improve the cooling effect on the nonwoven fabric.

[0043] Furthermore, the nonwoven fabric has a first side and a second side, with the first side of the nonwoven fabric wound around at least one output roller 3 and the second side of the nonwoven fabric wound around at least one output roller 3. Different output rollers 3 can cool the first side and the second side of the nonwoven fabric, thereby improving the cooling effect on the nonwoven fabric.

[0044] In summary, the working process of the rapid cooling nonwoven fabric web forming machine provided by this utility model is as follows:

[0045] Water pump 53 supplies water to cooling pipe 4. The water flowing through cooling pipe 4 cools the output roller 3, and the cooled output roller 3 lowers the temperature of the nonwoven fabric wound around it, facilitating subsequent processing of the nonwoven fabric. The water supply rate of pump 53 is inversely proportional to the rotational speed of the forming roller 2. With a constant meltblown amount, the thickness of the formed nonwoven fabric is adjusted by the rotational speed of the forming roller 2. A higher rotational speed results in a thinner nonwoven fabric, lower heat accumulation, and better heat dissipation; in this case, the water supply rate of pump 53 can be reduced to decrease cooling energy consumption. Conversely, a lower rotational speed results in a thicker nonwoven fabric, higher heat accumulation, and poorer heat dissipation; in this case, the water supply rate of pump 53 needs to be increased to ensure effective cooling of the nonwoven fabric. The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A rapid-cooling nonwoven fabric web-forming machine, wherein the web-forming machine is disposed below a meltblown device configured to spray molten filaments, characterized in that, The network forming machine includes: Rack (1); A web forming roller (2) is horizontally set and rotatably connected to the frame (1) in the horizontal direction. One end of the web forming roller (2) is connected to a negative pressure fan through a pipe. The negative pressure fan is configured to provide negative pressure to the web forming roller (2). The web forming roller (2) is configured to adsorb and stack the filamentous fibers to form a nonwoven fabric. Output roller (3) is horizontally set and rotatably connected to the frame (1) in the horizontal direction. The non-woven fabric is wrapped around the output roller (3). A cooling pipe (4) is provided inside the output roller (3). The input end of the cooling pipe (4) is connected to the output end of the water supply pump (53) through a pipe. The water supply capacity of the water pump (53) is inversely proportional to the rotational speed of the net forming drum (2).

2. The rapid cooling nonwoven fabric forming machine according to claim 1, characterized in that, The output roller (3) includes a roller body (31) and a roller shaft (32). The roller body (31) and the roller shaft (32) are coaxially arranged. The inside of the roller body (31) is hollow. The cooling pipe (4) is located in the hollow area of ​​the roller body (31). The inlet and outlet of the cooling pipe (4) are located at both ends of the output roller (3) and are coaxially arranged with the roller shaft (32).

3. The rapid cooling nonwoven fabric forming machine according to claim 2, characterized in that, The roller body (31) is filled with thermally conductive filler.

4. The rapid cooling nonwoven fabric forming machine according to claim 2, characterized in that, The cooling pipes (4) are arranged in a serpentine pattern inside the roller body (31).

5. The rapid cooling nonwoven fabric forming machine according to claim 1, characterized in that, The cooling pipeline (4) includes a first manifold (41) and a second manifold (42) as well as multiple sub-pipes (43). One end of each sub-pipe (43) is connected to the first manifold (41) and the other end is connected to the second manifold (42).

6. The rapid cooling nonwoven fabric forming machine according to claim 1, characterized in that, Multiple output rollers (3) are provided, and the nonwoven fabric is wound around multiple output rollers (3).

7. The rapid cooling nonwoven fabric forming machine according to claim 6, characterized in that, The nonwoven fabric has a first side and a second side opposite to each other, the first side of the nonwoven fabric being wound around at least one of the output rollers (3), and the second side of the nonwoven fabric being wound around at least one of the output rollers (3).

8. The rapid cooling nonwoven fabric forming machine according to claim 1, characterized in that, The rapid cooling nonwoven fabric forming machine also includes a water storage tank (51) and a cooler (52). The output end of the cooling pipe (4) is connected to the input end of the cooler (52), the output end of the cooler (52) is connected to the water storage tank (51), and the input end of the water supply pump (53) is connected to the water storage tank (51).

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