Hydrophobic treatment device for hydrophobic non-woven fabric
By designing a hydrophobic treatment device, the problem of uneven hydrophobic performance caused by spray blind spots in nonwoven fabric processing was solved, achieving uniform adhesion and efficient draining of the hydrophobic agent, thereby improving the hydrophobic performance and product quality of nonwoven fabrics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-10
AI Technical Summary
In traditional nonwoven fabric processing, spray blind spots lead to insufficient hydrophobicity and uneven local hydrophobicity, affecting product quality.
A hydrophobic treatment device is adopted, including a downward guide roller, an immersion guide roller, an upward guide roller and a winding roller group inside the housing. The first and second rotating rollers are pressed together by non-woven fabric in an N-shape, and preheating and pre-drying are carried out in combination with a heating plate group to avoid spray blind spots and improve the uniformity of hydrophobic agent adhesion and drainage effect.
This method achieves uniform adhesion of hydrophobic agents to the surface of nonwoven fabrics, avoids spray blind spots, improves the uniformity of hydrophobic properties and product quality, reduces unnecessary loss of solution, and improves material utilization.
Smart Images
Figure CN223983839U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of nonwoven fabric processing equipment, and specifically to a hydrophobic treatment device for hydrophobic nonwoven fabric. Background Technology
[0002] Hydrophobic nonwoven fabrics are commonly used materials for automotive interiors. Also known as nonwoven cloth, needle-punched cotton, or needle-punched nonwoven fabric, nonwoven fabrics are made from polyester fibers and produced through a needle-punching process. They are characterized by moisture resistance, breathability, flexibility, lightness, flame retardancy, non-toxicity, odorlessness, low cost, and recyclability.
[0003] In traditional techniques, nonwoven fabric raw materials typically require spraying with a solution containing a hydrophobic agent, followed by drying to enhance their hydrophobic properties. However, nonwoven fabric raw materials are usually quite wide, and the spaced spray streams can easily create spray blind zones. While the nonwoven fabric within these blind zones will still be wetted, this is achieved through immersion rather than spraying. During immersion, hydrophobic agent molecules are filtered out, leading to localized deficiencies in the final hydrophobic nonwoven fabric product. Summary of the Invention
[0004] In order to overcome the problem of "spray blind zone during the processing of hydrophobic nonwoven fabric" in the above-mentioned background technology, this utility model provides a hydrophobic treatment device for hydrophobic nonwoven fabric.
[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is:
[0006] A hydrophobic treatment device for hydrophobic nonwoven fabric includes a housing; a solution containing a hydrophobic agent is disposed at the bottom of the inner cavity of the housing; the inner cavity of the housing is provided with a downward guide roller, an immersion guide roller, an upward guide roller, a winding roller group, and a heating plate group; the heating plate group and the winding roller group are interlocked; the nonwoven fabric is sequentially connected to the downward guide roller, the immersion guide roller, the upward guide roller, and the winding roller group; the immersion guide roller is immersed in the solution; the downward guide roller and the upward guide roller are both located above the solution; the winding roller group is located above the upward guide roller, and the nonwoven fabric located between the upward guide roller and the winding roller group forms a drain section, which is vertically arranged.
[0007] As a further optimization of this utility model, the winding roller group includes a plurality of first rotating rollers and a plurality of second rotating rollers, the first rotating rollers and the second rotating rollers being arranged alternately in an N-shape; the first rotating rollers are located above the second rotating rollers, and the first first rotating roller is located directly above the upward guide roller; the two ends of the asphalt section are respectively connected to the upward guide roller and the first first rotating roller, and the asphalt section is vertically arranged.
[0008] As a further optimization of this utility model, the nonwoven fabric is pressed into the surfaces of the first roller and the second roller in an N-shape; an insertion gap is provided between adjacent first rollers, and the heating plate group includes a plurality of heating plates, with the middle part of the heating plate inserted into the insertion gap.
[0009] As a further optimization of this utility model, both outer side walls of the lower part of the heating plate are pressed together with the non-woven fabric.
[0010] As a further optimization of this utility model, the longitudinal section of the heating plate is inverted Y-shaped.
[0011] As a further optimization of this utility model, the upper part of the heating plate is fixedly connected to the top surface of the inner cavity of the housing.
[0012] As a further optimization of this utility model, the side wall of the housing is provided with a feed inlet and a discharge outlet located above the feed inlet.
[0013] As a further optimization of this utility model, the downward guide roller is located in the inner cavity of the housing near the feed inlet, and the upward guide roller is located in the inner cavity of the housing away from the feed inlet; the downward guide roller and the upward guide roller are respectively disposed on both sides of the immersion guide roller.
[0014] As a further optimization of this utility model, the first roller and the second roller are rotatable to drive the nonwoven fabric forward.
[0015] As a further optimization of this utility model, the outer wall of the housing is provided with a driving assembly; the driving assembly includes a first motor connected to the upward guide roller, a second motor connected to the downward guide roller, a third motor connected to the second rotating roller, and a fourth motor connected to the first rotating roller.
[0016] In summary, this utility model has at least one of the following advantages:
[0017] (1) This utility model has a simple structure and reliable function. The non-woven fabric of the immersed guide roller pressing part is immersed in a solution containing hydrophobic agent, thereby realizing the soaking of non-woven fabric. This can avoid the formation of spray blind zone, further avoid the problem of insufficient local hydrophobic performance of the final hydrophobic non-woven fabric product, improve the adhesion uniformity of hydrophobic agent, and ensure product quality.
[0018] (2) The winding roller group is located above the upward guide roller. The nonwoven fabric between the upward guide roller and the winding roller group forms the draining section, which is set vertically. The solution adhering to the inside and surface of the draining section is subjected to vertical downward gravity, while the draining section moves upward. Therefore, it can achieve draining as much as possible to avoid the problem of solution dripping after the nonwoven fabric leaves the shell, thereby reducing unnecessary loss of solution and improving material utilization.
[0019] (3) The nonwoven fabric is pressed into the surfaces of the first and second rollers in an N-shape; there is an interlocking gap between adjacent first rollers, and the heating plate group includes several heating plates, with the middle of the heating plate inserted into the interlocking gap. The drained nonwoven fabric is conveyed to the position of the winding roller group, and the heating plate preheats and pre-dries the nonwoven fabric at the position of the winding roller group, thereby further avoiding the problem of solution dripping after the nonwoven fabric leaves the shell.
[0020] (4) The longitudinal section of the heating plate is an inverted Y-shape; the two outer walls of the lower part of the heating plate are pressed with non-woven fabric, thereby improving the heat conduction speed and further improving the pre-drying speed. Attached Figure Description
[0021] The present application will be further explained below with reference to the accompanying drawings:
[0022] Figure 1 This is a front view of the overall structure of this utility model;
[0023] Figure 2 This is a front view schematic diagram of the winding roller assembly structure;
[0024] Figure 3 This is a front view of the vertical section of the heating plate structure;
[0025] Figure 4 This is a schematic diagram showing the location and structure of the partition plate;
[0026] Figure 5 This is a left-view schematic diagram showing the location and structure of the driving component.
[0027] Explanation of reference numerals in the attached figures:
[0028] In the picture,
[0029] 1. Shell; 11. Inlet; 12. Outlet;
[0030] 2. Downward guide roller;
[0031] 3. Immersion guide roller;
[0032] 4. Upward guide roller;
[0033] 5. Circumferential guide roller; 51. First rotating roller; 511. Insertion gap; 52. Second rotating roller;
[0034] 6. Heating plate assembly; 61. Heating plate; 62. Insulation plate;
[0035] 7. Non-woven fabric; 71. Asphalt fiber;
[0036] 8. Divider;
[0037] 9. Drive assembly; 91. First motor; 92. Second motor; 93. Third motor; 94. Fourth motor. Detailed Implementation
[0038] Based on the above-described structural features of this application, the implementation methods of this application will be further described as follows:
[0039] Reference Figures 1-2 This embodiment provides a hydrophobic treatment device for hydrophobic nonwoven fabric, including a housing 1; the bottom of the inner cavity of the housing 1 is provided with a solution containing a hydrophobic agent.
[0040] Reference Figures 1-2 The inner cavity of the housing 1 is provided with a downward guide roller 2, an immersion guide roller 3, an upward guide roller 4, a winding roller group, and a heating plate group 6. The downward guide roller 2, the immersion guide roller 3, and the upward guide roller 4 are arranged in parallel to each other, thereby achieving uniform driving and guiding of the nonwoven fabric 7, avoiding the problem of tearing and damage to the nonwoven fabric 7 due to uneven load, and improving product quality.
[0041] Reference Figures 1-2 The heating plate group 6 and the winding roller group are interlocked. The heating plate group 6 is used to preheat and pre-dry the nonwoven fabric 7 at the position of the winding roller group, so as to avoid the problem of the nonwoven fabric 7 dripping solution after leaving the shell 1, thereby reducing unnecessary loss of solution and improving material utilization.
[0042] Reference Figure 1 The nonwoven fabric 7 is sequentially connected to the downward guide roller 2, the immersion guide roller 3, the upward guide roller 4, and the winding roller group. The nonwoven fabric 7 is pressed against the surface of the downward guide roller 2, thus achieving downward turning and parallel movement. The nonwoven fabric 7 is pressed against the surface of the immersion guide roller 3, forming a V-shape, allowing the nonwoven fabric 7 closest to the immersion guide roller 3 to be immersed in the solution in a moving state. The nonwoven fabric 7 is pressed against the surface of the upward guide roller 4, thus achieving upward turning and parallel movement.
[0043] Reference Figure 1The immersion guide roller 3 is submerged in the solution; the downward guide roller 2 and the upward guide roller 4 are both located above the solution; the winding roller group is located above the upward guide roller 4, and the nonwoven fabric 7 located between the upward guide roller 4 and the winding roller group forms a drain section 71, which is vertically arranged. The solution adhering to the inside and surface of the drain section 71 is subjected to a downward gravity, while the drain section 71 moves upward, thus achieving maximum draining and avoiding the problem of solution dripping after the nonwoven fabric 7 leaves the housing 1, thereby reducing unnecessary solution loss and improving material utilization.
[0044] Reference Figure 1 and Figure 2 The winding roller group includes a plurality of first rotating rollers 51 and a plurality of second rotating rollers 52, the first rotating rollers 51 and the second rotating rollers 52 being arranged alternately in an N-shape; the first rotating rollers 51, the second rotating rollers 52 and the upward steering roller are arranged in parallel to each other, thereby avoiding the nonwoven fabric 7 from being subjected to eccentric load and being damaged.
[0045] Reference Figure 1 and Figure 2 The first rotating roller 51 is located above the second rotating roller 52, and the first first rotating roller 51 is located directly above the upward guide roller 4; the two ends of the draining section 71 are respectively pressed against the upward guide roller 4 and the first first rotating roller 51, and the draining section 71 is vertically arranged to further improve the draining effect.
[0046] Reference Figure 1 ,and Figure 2 The height difference between the upward guide roller 4 and the first first rotating roller 51 is not less than 100 mm, thereby enhancing the draining effect.
[0047] The nonwoven fabric 7 is pressed into the surfaces of the first roller 51 and the second roller 52 in an N-shape; an insertion gap 511 is provided between adjacent first rollers 51, and the heating plate assembly 6 includes a plurality of heating plates 61, the middle of which is inserted into the insertion gap 511. Different heating plates 61 are inserted into different insertion gaps 511. The drained nonwoven fabric 7 is conveyed to the position of the winding roller assembly, and the heating plates 61 preheat and pre-dry the nonwoven fabric 7 at the position of the winding roller assembly, thereby further avoiding the problem of solution dripping from the nonwoven fabric 7 after it leaves the housing 1.
[0048] Reference Figure 1 and Figure 3 The two outer side walls of the lower part of the heating plate 61 are pressed against the nonwoven fabric 7, thereby improving the heat conduction speed and further improving the pre-drying speed. The longitudinal section of the heating plate 61 is an inverted Y-shape. The heating plate 61 is an electrically driven heating plate structure.
[0049] Reference Figure 4The upper part of the heating plate 61 is fixedly connected to the top surface of the inner cavity of the housing 1 (for example, by bolts).
[0050] Reference Figure 4 A heat insulation plate 62 is fixedly installed on the top surface of the inner cavity of the housing 1, and the top of the heating plate 61 is pressed against the heat insulation plate 62. The heating plate 61, the heat insulation plate 62 and the top plate of the housing 1 are fixedly connected by through bolts. The top plate of the housing 1 has a wiring hole, and the wires connected to the heating plate 61 are inserted into the wiring hole to realize the wire lead-out.
[0051] Reference Figure 1 and Figure 2 The housing 1 has an inlet 11 and an outlet 12 located above the inlet 11 on its side wall. The non-woven fabric 7 is fed into the inner cavity of the housing 1 through the inlet 11 and then discharged through the outlet 12.
[0052] Reference Figure 1 The downward guide roller 2 is located inside the housing 1 near the feed inlet 11, and the upward guide roller 4 is located inside the housing 1 away from the feed inlet 11. The downward guide roller 2 and the upward guide roller 4 are respectively disposed on both sides of the immersion guide roller 3. The downward guide roller 2, the immersion guide roller 3, and the upward guide roller 4 are arranged in a V-shape.
[0053] Reference Figure 1 and Figure 2 The first roller 51 and the second roller 52 are rotatable to drive the nonwoven fabric 7 forward.
[0054] Reference Figure 1 , Figure 2 and Figure 5 The outer wall of the housing 1 is provided with a drive assembly 9; the drive assembly 9 includes a first motor 91 connected to the upward guide roller 4, a second motor 92 connected to the downward guide roller 2, a third motor 93 connected to the second rotating roller 52, and a fourth motor 94 connected to the first rotating roller 51. The output shafts of the first motor 91, the second motor 92, the third motor 93, and the fourth motor 94 are all inserted into receiving holes in the side wall of the housing 1.
[0055] Reference Figure 4The inner cavity of the housing 1 is provided with an inclined partition plate 8, which is located below the winding roller group. The upward guide roller 4 and the downward guide roller 2 are both located below the partition plate 8. The partition plate 8 has a straight plate structure, and there is a gap of not less than 10 mm between the partition plate 8 and the asphalt section 71 to ensure the smooth movement of the nonwoven lining. The end of the partition plate 8 near the asphalt section 71 is inclined downward and the end away from the asphalt section 71 is inclined upward. This allows solution droplets shaken off the asphalt section 71 or dripping from the second rotating roller 52 to fall onto the partition plate 8 and eventually drip into the solution, thus achieving droplet recovery.
[0056] Reference Figure 4 The separator 8 is located below the heating plate 61 and above the solution, preventing heat from diffusing downwards from the vicinity of the roller assembly, thereby achieving heat preservation for the heating plate 61, the first roller 51, the second roller 52, and the surrounding air. Since the first roller 51 and the second roller 52 are both close to the heating plate 61, their temperature will rise over time; while the nonwoven fabric 7 is attached to the surface of the first roller 51 and the second roller 52, the first roller 51 and the second roller 52 will also transfer heat to the nonwoven fabric 7 for preheating and pre-drying, thus avoiding the problem of the nonwoven fabric 7 dripping solution after leaving the housing 1.
[0057] This utility model also includes a dryer, with both the housing 1 and the dryer placed on a workbench. The discharge port 12 is opposite to the dryer inlet, and the non-woven fabric 7 exits from the discharge port 12 and enters the dryer for drying. The dryer has built-in electric heating wires and a blower, both of which are conventional existing technologies in the industry, and their specific structures will not be described in detail.
[0058] This utility model also includes an electrical cabinet, which is fixedly installed on the back of the housing 1 by bolts. The heating plate 61, the first motor 91, the second motor 92, the third motor 93, the fourth motor 94, the electric heating wire, and the blower are respectively connected to the electrical cabinet via wires and signal lines; the electrical cabinet is connected to the external power supply and the external computer via wires and signal lines, and the computer controls the start and stop of the heating plate 61, the first motor 91, the second motor 92, the third motor 93, the fourth motor 94, the electric heating wire, and the blower through the electrical cabinet.
[0059] This utility model has a simple structure and reliable function. The nonwoven fabric 7 of the immersion guide roller 3 is immersed in a solution containing a hydrophobic agent, thereby achieving the soaking of the nonwoven fabric 7. This can avoid the formation of spray blind spots, further avoid the problem of insufficient hydrophobic performance in the final hydrophobic nonwoven fabric 7, improve the uniformity of hydrophobic agent adhesion, and ensure product quality.
[0060] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to 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.
[0061] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" 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 mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between 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.
[0062] In conclusion, for those skilled in the art, any changes, modifications, substitutions, or variations made to this utility model based on its guidance, without departing from its principles and spirit, shall still fall within the protection scope of this utility model.
Claims
1. A hydrophobic treatment device for a hydrophobic nonwoven fabric, characterized by: Including shell (1), the bottom of the shell (1) cavity is equipped with solution containing hydrophobic agent; The shell (1) cavity is equipped with down guide roller (2), immersion guide roller (3), up guide roller (4), round roller group and heating plate group (6), the heating plate group (6) and the round roller group are mutually inserted and arranged, non-woven fabric (7) is connected with down guide roller (2), immersion guide roller (3), up guide roller (4) and round roller group in turn. The immersion guide roller (3) is immersed in the solution, the down guide roller (2) and the up guide roller (4) are located above the solution, the round roller group is located above the up guide roller (4), and the non-woven fabric (7) between the up guide roller (4) and the round roller group forms a draining part (71), and the draining part (71) is vertically arranged.
2. The hydrophobic treatment device for a hydrophobic nonwoven fabric according to claim 1, characterized by: The round roller group includes a plurality of first rotating rollers (51) and a plurality of second rotating rollers (52), the first rotating rollers (51) and the second rotating rollers (52) are alternately arranged in the shape of N, the first rotating rollers (51) are located above the second rotating rollers (52), and the first rotating roller (51) is located directly above the up guide roller (4), the draining part (71) is connected with the up guide roller (4) and the first rotating roller (51) at both ends, and the draining part (71) is vertically arranged.
3. The hydrophobic treatment device for a hydrophobic nonwoven fabric according to claim 2, characterized by: The non-woven fabric (7) is pressed on the surfaces of the first rotating rollers (51) and the second rotating rollers (52) in the shape of N, the adjacent first rotating rollers (51) are provided with an insertion gap (511), the heating plate group (6) includes a plurality of heating plates (61), and the middle part of the heating plate (61) is inserted into the insertion gap (511).
4. The hydrophobic treatment device for a hydrophobic nonwoven fabric according to claim 3, characterized by: The outer side walls of the lower part of the heating plate (61) are pressed on the non-woven fabric (7).
5. The hydrophobic treatment device for a hydrophobic nonwoven fabric according to claim 4, characterized by: The longitudinal section of the heating plate (61) is in the shape of inverted Y.
6. The hydrophobic treatment device for a hydrophobic nonwoven fabric according to claim 5, characterized by: The upper part of the heating plate (61) is fixedly connected with the top surface of the shell (1) cavity.
7. The hydrophobic treatment device for a hydrophobic nonwoven fabric according to claim 6, characterized by: The side wall of the shell (1) is provided with a feeding port (11) and a discharging port (12) located above the feeding port (11).
8. The hydrophobic treatment device for a hydrophobic nonwoven fabric according to claim 7, characterized by: The down guide roller (2) is located close to the feeding port (11) in the shell (1) cavity, and the up guide roller (4) is located away from the feeding port (11) in the shell (1) cavity, the down guide roller (2) and the up guide roller (4) are arranged on both sides of the immersion guide roller (3).
9. The hydrophobic treatment device for a hydrophobic nonwoven fabric according to claim 8, characterized by: The first rotating rollers (51) and the second rotating rollers (52) can rotate to drive the non-woven fabric (7) to move forward.
10. The hydrophobic treatment device for a hydrophobic nonwoven fabric according to claim 9, characterized by: The outer wall of the shell (1) is provided with a driving assembly (9), the driving assembly (9) includes a first motor (91) connected with the up guide roller (4), a second motor (92) connected with the down guide roller (2), a third motor (93) connected with the second rotating roller (52) and a fourth motor (94) connected with the first rotating roller (51).