Hot air non-woven fabric wrinkle removing device

Abstract

The utility model discloses a hot air non-woven fabric wrinkle removing device which comprises a working table and a steam generator, the output end of the steam generator is fixedly connected with a spraying pipe through a conveying pipe, the spraying pipe is fixedly installed in an installation frame on the upper surface of the working table, a negative pressure box is arranged on the bottom face of the working table, and one side of the negative pressure box is fixedly connected with an exhaust pipe. One end of the air suction pipe is fixedly connected with an air suction pump, a plurality of negative pressure holes are formed in the upper surface of the workbench, and the upper portion of the negative pressure box is open, so that negative pressure generated in the negative pressure box can generate negative pressure on the non-woven fabric through the negative pressure holes, and steam can better and faster permeate the non-woven fabric. The utility model solves the problems that steam is difficult to permeate into the non-woven fabric in a short time, the softening effect of the steam on non-woven fabric fibers is influenced, and the wrinkle removing efficiency is further influenced by the existing steam spraying mode.

Description

Technical Field

[0001] This utility model belongs to the field of nonwoven fabric processing technology, and in particular relates to a hot air nonwoven fabric wrinkle removal device. Background Technology

[0002] Hot air nonwoven fabric belongs to the category of hot air bonded (hot rolled, hot air) nonwoven fabric. Hot air nonwoven fabric is produced by bonding the fibers together after they are combed together using hot air from a drying device that penetrates the fiber web and heats it.

[0003] During the processing of hot air nonwoven fabric, it is necessary to ensure the flatness of the nonwoven fabric. Wrinkle removal devices are usually used to remove wrinkles. Existing wrinkle removal devices generally include steam ironing, hot pressing, or mechanical stretching. When steam ironing wrinkle removal, steam is usually sprayed directly onto the surface of the nonwoven fabric, allowing the steam to penetrate the nonwoven fabric naturally, loosening and softening the fibers, and then wrinkle removal is achieved by pressing.

[0004] However, this method of spraying steam makes it difficult for the steam to penetrate into the nonwoven fabric in a short time, affecting the softening effect of the steam on the nonwoven fabric fibers, and thus further affecting the wrinkle removal effect. To solve the above problems, a hot air nonwoven fabric wrinkle removal device is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a hot air nonwoven fabric wrinkle removal device to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a hot air nonwoven fabric wrinkle removal device, including a workbench and a steam generator. The output end of the steam generator is fixedly connected to the spray pipe through a delivery pipe. The spray pipe is fixedly installed in the mounting bracket on the upper surface of the workbench.

[0008] The bottom surface of the workbench is provided with a negative pressure box. A suction pipe is fixedly connected to one side of the negative pressure box, and a suction pump is fixedly connected to one end of the suction pipe. The upper surface of the workbench is provided with several negative pressure holes, and the top of the negative pressure box is open, so that the negative pressure generated in the negative pressure box can generate negative pressure on the non-woven fabric through the negative pressure holes, so that steam can penetrate the non-woven fabric better and faster.

[0009] Preferably, the bottom of the spray pipe is provided with a plurality of first mounting holes and a plurality of second mounting holes, wherein a first nozzle is installed in the first mounting hole and a second nozzle is installed in the second mounting hole;

[0010] The first nozzle is set vertically, and the second nozzle is set at an angle to form a fan-shaped spray at different angles, thus expanding the coverage area laterally.

[0011] Preferably, the first nozzle is a venturi tube, which is used to increase the steam spraying speed, so that the steam penetrates into the nonwoven fabric more quickly;

[0012] The second nozzle is a spiral tube, which is used to reduce turbulence, maintain stable pressure, and improve atomization uniformity.

[0013] Preferably, the negative pressure box is internally fixedly equipped with a first guide plate, a second guide plate, and a third guide plate. The first guide plate, the second guide plate, and the third guide plate are all inclined with an upward tilt angle. The first guide plate and the third guide plate are parallel to the second guide plate and are staggered vertically to guide the airflow in stratified flow, reduce turbulent energy loss, and ensure uniform negative pressure distribution at the negative pressure hole.

[0014] Preferably, both the inner walls of the first and second nozzles are fixedly equipped with a heat insulation layer, which is made of polyurethane to prevent steam from condensing.

[0015] Preferably, a nut is threaded onto the peripheral side of the second nozzle, a first sealing washer is fixedly connected to the peripheral side of the first nozzle, and a second sealing washer is fixedly connected to the peripheral side of the second nozzle, and both the first and second sealing washers are in contact with the spray pipe.

[0016] Preferably, the position of the spray pipe corresponds to the position of the negative pressure hole, and the position of the negative pressure box corresponds to the position of the negative pressure hole.

[0017] Preferably, the upper surface of the workbench is fixedly connected to an unwinding mechanism and a winding mechanism. The unwinding mechanism includes a first driving mechanism, an unwinding frame, and an unwinding roller. The output end of the first driving mechanism is fixedly connected to the unwinding roller via a shaft, and the first driving mechanism is fixedly connected to the unwinding frame.

[0018] The winding mechanism includes a second drive mechanism, a winding frame, and a winding roller. The output end of the second drive mechanism is fixedly connected to the winding roller via a shaft. The second drive mechanism is fixedly connected to the winding frame. The unwinding roller and the unwinding frame are detachably connected. The winding roller and the winding frame are detachably configured for replacement.

[0019] This utility model has the following beneficial effects:

[0020] 1. This utility model has the effect of accelerating the penetration of steam into non-woven fabric, improving the wrinkle removal efficiency and quality of non-woven fabric. More specifically, by setting up an air pump, a negative pressure box and a negative pressure hole, the spray pipe sprays steam onto the non-woven fabric, and the air pump draws air from the negative pressure box, so that the negative pressure box generates negative pressure. Through the cooperation of negative pressure and steam, the steam can penetrate the non-woven fabric faster and more evenly, improving the wrinkle removal efficiency and quality.

[0021] 2. This utility model has the effect of expanding the spray range of the equipment and improving the wrinkle removal efficiency of the equipment. By setting a first nozzle and a second nozzle, the first nozzle sprays vertically downwards. The setting of the venturi tube accelerates the steam ejection speed, allowing it to penetrate the nonwoven fabric more quickly. The second nozzle is a spiral tube, and the installation method is inclined to form a fan-shaped spray range, thus expanding the spray range of the equipment. The steam rotates tightly against the tube wall due to centrifugal force in the spiral tube, forming a stable spiral turbulence, which effectively reduces local high pressure areas or low pressure areas and avoids deformation of the nonwoven fabric.

[0022] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the spray pipe and its nozzle of this utility model;

[0026] Figure 3 This is a schematic diagram of the distribution structure of the mounting holes at the bottom of the spray pipe of this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the first nozzle of this utility model;

[0028] Figure 5 This is a cross-sectional view of the first nozzle of this utility model;

[0029] Figure 6 This is a schematic diagram of the structure of the second nozzle of this utility model;

[0030] Figure 7 This is a schematic diagram of the internal structure of the negative pressure box of this utility model.

[0031] The components represented by each number in the attached diagram are listed below: 1. Workbench; 2. Unwinding mechanism; 3. Rewinding mechanism; 4. Steam generator; 5. Air pump; 6. Conveying pipe; 7. Mounting bracket; 8. Spray pipe; 9. Air extraction pipe; 10. Negative pressure box; 11. First mounting hole; 12. Negative pressure hole; 13. Second mounting hole; 14. First nozzle; 15. Second nozzle; 16. First sealing gasket; 17. Insulation layer; 18. Second sealing gasket; 19. Nut; 20. First guide plate; 21. Second guide plate; 22. Third guide plate. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0033] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] Example 1:

[0035] Please see Figures 1-7 As shown, this utility model is a hot air nonwoven fabric wrinkle removal device, including a workbench 1 and a steam generator 4. The output end of the steam generator 4 is fixedly connected to a spray pipe 8 through a delivery pipe 6. The spray pipe 8 is fixedly installed in a mounting bracket 7 on the upper surface of the workbench 1. The working principle of the steam generator 4 is that after the fuel is fully burned in the combustion chamber, a large amount of heat is released. This heat is transferred to the water in the boiler drum through radiation and conduction, heating the water into saturated steam. The steam continuously accumulates in the boiler drum, forming high pressure, and is discharged through a safety valve. Meanwhile, the water continues to be heated and circulated to maintain the continuous steam production of the steam generator. Specifically, the working process of the steam generator 4 is as follows: after the fuel is fully burned in the combustion chamber, high-temperature flue gas is released; the high-temperature flue gas is transferred to the water in the boiler drum through radiation and conduction; the water absorbs heat and is quickly heated to become saturated steam; the steam continuously accumulates in the boiler drum, forming high pressure; the high-pressure steam is discharged through the safety valve, and the saturated water continues to be heated and circulated to maintain the continuous steam production of the steam generator 4. The steam generated by the steam generator 4 is transported to the spray pipe 8 through the conveying pipe 6, and the hot air nonwoven fabric is sprayed and wrinkle-removed through the spray pipe 8.

[0036] The bottom of the spray pipe 8 is provided with several first mounting holes 11 and several second mounting holes 13. A first nozzle 14 is installed in the first mounting hole 11. The first nozzle 14 is vertically arranged, and the sprayed steam covers the central area. The first nozzle 14 is threadedly connected to the first mounting hole 11. A first sealing gasket 16 is fixedly connected to the peripheral side of the first nozzle 14. The first sealing gasket 16 is used to seal the connection between the first nozzle 14 and the spray pipe 8. When the first nozzle 14 is inserted and tightened, the first sealing gasket 16 fits against the spray pipe 8 to prevent steam leakage. The first nozzle 14 is set as a venturi tube to increase the steam spraying speed, so that the steam penetrates into the non-woven fabric more quickly.

[0037] A second nozzle 15 is installed in the second mounting hole 13. A nut 19 is threaded onto the circumferential side of the second nozzle 15. A second sealing washer 18 is fixedly connected to the circumferential side of the second nozzle 15. The nut 19 is used to install and fix the second nozzle 15. Tightening the nut 19 can make the washer 18 and the spray pipe 8 fit together, improving the sealing of the installation of the second nozzle 15 and avoiding steam leakage that would lead to waste of resources. The second nozzle 15 is inclined and forms a fan-shaped spray on both sides of the first nozzle 14, expanding the coverage area laterally. The second nozzle 15 is set as a spiral tube to maintain stable pressure and improve atomization uniformity. The steam rotates tightly against the tube wall due to centrifugal force in the spiral tube, forming a stable spiral turbulence, which effectively reduces local high-pressure or low-pressure areas.

[0038] The inner walls of the first nozzle 14 and the second nozzle 15 are both fixedly equipped with a heat insulation layer 17. The heat insulation layer 17 is made of polyurethane to prevent steam from condensing.

[0039] The bottom surface of the workbench 1 is provided with a negative pressure box 10. Inside the negative pressure box 10, a first guide plate 20, a second guide plate 21, and a third guide plate 22 are fixedly installed. The first guide plate 20, the second guide plate 21, and the third guide plate 22 are all inclined upwards. The first guide plate 20 and the third guide plate 22 are parallel to the second guide plate 21 and are staggered vertically to guide the airflow to flow in layers, reduce turbulent energy loss, ensure uniform negative pressure distribution at the negative pressure hole 12, and prevent the non-woven fabric from deforming and wrinkling under negative pressure, thus effectively improving the wrinkle removal quality of the equipment.

[0040] A vacuum pipe 9 is fixedly connected to one side of the negative pressure box 10, and a vacuum pump 5 is fixedly connected to one end of the vacuum pipe 9. Several negative pressure holes 12 are provided on the upper surface of the workbench 1. The top of the negative pressure box 10 is open, so that the negative pressure generated in the negative pressure box 10 can generate negative pressure on the non-woven fabric through the negative pressure holes 12, so that steam can penetrate the non-woven fabric in a short time, thereby improving the wrinkle removal efficiency and quality of the equipment.

[0041] The upper surface of the workbench 1 is fixedly connected to an unwinding mechanism 2 and a winding mechanism 3. The unwinding mechanism 2 includes a first drive mechanism, an unwinding frame and an unwinding roller. The output end of the first drive mechanism is fixedly connected to the unwinding roller through a shaft, and the first drive mechanism is fixedly connected to the unwinding frame.

[0042] The winding mechanism 3 includes a second drive mechanism, a winding frame, and a winding roller. The output end of the second drive mechanism is fixedly connected to the winding roller via a shaft. The second drive mechanism is fixedly connected to the winding frame. The unwinding roller and the unwinding frame are detachably connected. The winding roller and the winding frame are detachably configured for replacement.

[0043] Working principle:

[0044] When de-wrinkling hot air nonwoven fabric, the nonwoven fabric to be de-wrinkled is wound on the unwinding roller of the unwinding mechanism 2. One end of the nonwoven fabric is wound onto the take-up roller. The first drive mechanism drives the unwinding roller to unload the nonwoven fabric, and the second drive mechanism drives the take-up roller to take up the nonwoven fabric. The steam generator 4 and the vacuum pump 5 are started. When the nonwoven fabric passes the position of the negative pressure hole 12, the steam generator 4 delivers steam through the conveying pipe 6 to the spray pipe 8. Then, the steam is sprayed out through the first nozzle 14 and the second nozzle 15. The first nozzle 14 sprays vertically downwards, and the second nozzles 15 on both sides spray to both sides, forming a fan-shaped spray range. The Venturi tube of the first nozzle 14 accelerates the steam spraying speed, allowing the steam to penetrate the nonwoven fabric more quickly. The spiral tube of the second nozzle 15 forms a conical diffusion area with each turn of the spiral tube. After superposition, a three-dimensional coverage is achieved, utilizing the high temperature of the steam. The system uses humidity to relax the fiber structure, thereby restoring the nonwoven fabric to a smooth state. Simultaneously, the air pump 5 draws air from the negative pressure box 10 through the air extraction pipe 9, creating a negative pressure in the negative pressure box 10. This negative pressure adsorbs steam, accelerating its penetration and allowing it to quickly penetrate the nonwoven fabric. A Venturi effect is formed between the first guide plate 20, the second guide plate 21, and the third guide plate 22, accelerating the airflow through the gaps between the guide plates. This makes the negative pressure at the negative pressure hole 12 more uniform. The negative pressure generated by the negative pressure box 10 is transmitted to the nonwoven fabric through the negative pressure hole 12. The negative pressure, combined with the steam, accelerates the steam penetration rate within the nonwoven fabric and makes the steam distribution within the nonwoven fabric more uniform, effectively improving the wrinkle removal quality and efficiency of the equipment. During the winding process, the take-up roller continuously sprays steam onto the nonwoven fabric for wrinkle removal. Furthermore, both the first nozzle 14 and the second nozzle 15 are detachable, facilitating nozzle inspection and replacement.

[0045] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A hot air nonwoven fabric wrinkle removal device, comprising a workbench (1) and a steam generator (4), wherein the output end of the steam generator (4) is fixedly connected to a spray pipe (8) via a conveying pipe (6), and the spray pipe (8) is fixedly installed in a mounting bracket (7) on the upper surface of the workbench (1), characterized in that, The bottom surface of the workbench (1) is provided with a negative pressure box (10). A suction pipe (9) is fixedly connected to one side of the negative pressure box (10). A suction pump (5) is fixedly connected to one end of the suction pipe (9). The upper surface of the workbench (1) is provided with several negative pressure holes (12). The top of the negative pressure box (10) is open, so that the negative pressure generated in the negative pressure box (10) can generate negative pressure on the non-woven fabric through the negative pressure holes (12), so that steam can penetrate the non-woven fabric better and faster.

2. The hot air nonwoven fabric wrinkle removal device according to claim 1, characterized in that, The bottom of the spray pipe (8) is provided with a plurality of first mounting holes (11) and a plurality of second mounting holes (13). A first nozzle (14) is installed in the first mounting hole (11), and a second nozzle (15) is installed in the second mounting hole (13). The first nozzle (14) is set vertically, and the second nozzle (15) is set at an angle to form a fan-shaped spray at different angles and expand the coverage area laterally.

3. The hot air nonwoven fabric wrinkle removal device according to claim 2, characterized in that, The first nozzle (14) is a venturi tube, which is used to increase the spraying speed of steam, so that the steam can penetrate into the non-woven fabric more quickly; The second nozzle (15) is a spiral tube, which is used to reduce turbulence, maintain pressure stability, and improve atomization uniformity.

4. The hot air nonwoven fabric wrinkle removal device according to claim 1, characterized in that, The negative pressure box (10) is fixedly installed with a first guide plate (20), a second guide plate (21) and a third guide plate (22). The first guide plate (20), the second guide plate (21) and the third guide plate (22) are all inclined and the inclination angle is upward. The first guide plate (20) and the third guide plate (22) are parallel to the second guide plate (21) and are staggered vertically to guide the airflow to flow in layers, reduce turbulent energy loss and ensure that the negative pressure distribution at the negative pressure hole (12) is uniform.

5. The hot air nonwoven fabric wrinkle removal device according to claim 3, characterized in that, The inner walls of the first nozzle (14) and the second nozzle (15) are both fixedly equipped with a heat insulation layer (17). The heat insulation layer (17) is made of polyurethane to prevent steam from condensing.

6. The hot air nonwoven fabric wrinkle removal device according to claim 3, characterized in that, The second nozzle (15) has a nut (19) threaded on its peripheral side, the first nozzle (14) has a first sealing washer (16) fixedly connected to its peripheral side, and the second nozzle (15) has a second sealing washer (18) fixedly connected to its peripheral side, and both the first sealing washer (16) and the second sealing washer (18) are in contact with the spray pipe (8).

7. The hot air nonwoven fabric wrinkle removal device according to claim 3, characterized in that, The position of the spray pipe (8) corresponds to the position of the negative pressure hole (12), and the position of the negative pressure box (10) corresponds to the position of the negative pressure hole (12).

8. The hot air nonwoven fabric wrinkle removal device according to claim 1, characterized in that, The upper surface of the workbench (1) is fixedly connected to an unwinding mechanism (2) and a winding mechanism (3). The unwinding mechanism (2) includes a first driving mechanism, an unwinding frame and an unwinding roller. The output end of the first driving mechanism is fixedly connected to the unwinding roller through a shaft. The first driving mechanism is fixedly connected to the unwinding frame. The winding mechanism (3) includes a second drive mechanism, a winding frame and a winding roller. The output end of the second drive mechanism is fixedly connected to the winding roller via a shaft. The second drive mechanism is fixedly connected to the winding frame. The unwinding roller and the unwinding frame are detachably coupled. The winding roller and the winding frame are detachably set for replacement.

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