Ultrasonic atomization device for spinning melt

Abstract

The utility model relates to atomization device technical field, including atomization box, the inside vertical fixedly connected of atomization box has baffle, and the inner chamber of atomization box is divided into atomization chamber and atomization ejection chamber through baffle, and the upper end of baffle is equipped with the flow channel between the top of atomization box, the bottom of atomization chamber is fixed with ultrasonic atomization module, and the bottom of atomization ejection chamber is rotatably equipped with the adjusting cylinder of horizontal axis, and the adjusting cylinder is opened with long strip shape atomization mouth along the axial direction. The utility model solves the problem of traditional technology in melt blown cloth addition emulsion's mode energy consumption high: need to set up separately dipping, liquid rolling, drying etc. many processes, and the equipment covers an area greatly, energy consumption is high, and the wet state dipping and subsequent liquid rolling, drying process can destroy melt blown cloth original web structure, influence its bulkiness, air permeability and filtration performance, and the problem of relatively low production efficiency, and dipping and drying speed limit the operation efficiency of whole production line.

Description

Technical Field

[0001] This utility model relates to the field of atomization device technology, specifically to an ultrasonic emulsion atomization device for spinning and melting. Background Technology

[0002] Meltblown nonwoven fabric is an important nonwoven material widely used in medical, hygiene, and filtration fields. During the production process, to impart specific properties to meltblown nonwoven fabric (such as antistatic, water-repellent, and antibacterial properties), functional emulsion reagents need to be added during the spinning stage.

[0003] Currently, the conventional methods of adding the reagent include impregnation, which involves passing the formed meltblown fabric through an impregnation tank containing a functional emulsion to allow the fibers to fully absorb the reagent, followed by drying and shaping.

[0004] As existing devices are used, the shortcomings of this technology have gradually become apparent, mainly in the following aspects:

[0005] First, the existing method of adding emulsion to meltblown fabric is energy-intensive: it requires multiple separate processes such as impregnation, rolling, and drying, and the equipment occupies a large area and consumes a lot of energy.

[0006] Secondly, wet impregnation and subsequent rolling and drying processes may damage the original fiber web structure of meltblown fabric, affecting its bulkiness, air permeability and filtration performance.

[0007] Third, the production efficiency is low, as the speed of impregnation and drying limits the overall operating efficiency of the production line.

[0008] As can be seen from the above, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0009] To address the shortcomings of existing technologies, this utility model provides an ultrasonic emulsion atomization device for spunbond fabrics, which solves the problems of high energy consumption in traditional methods of adding emulsions to meltblown fabrics: multiple processes such as impregnation, rolling, and drying need to be set up separately, the equipment occupies a large area and consumes a lot of energy; wet impregnation and subsequent rolling and drying processes may damage the original fiber web structure of meltblown fabric, affecting its bulkiness, air permeability and filtration performance; and low production efficiency, with the impregnation and drying speeds limiting the operating efficiency of the entire production line.

[0010] To achieve the above objectives, the present invention provides the following technical solution.

[0011] An ultrasonic emulsion atomization device for spinning and melting includes an atomization box, in which a partition is vertically fixed and the inner cavity of the atomization box is divided into an atomization chamber and an atomization ejection chamber by the partition. A flow channel is provided between the upper end of the partition and the top of the atomization box.

[0012] An ultrasonic atomizing module is fixedly installed at the bottom of the atomizing chamber, and an adjusting cylinder with its axis horizontally set is rotatably installed at the bottom of the atomizing spray chamber. The adjusting cylinder has an elongated mist outlet along its axis, which connects the atomizing spray chamber to the outside.

[0013] As an optimized solution, an air supply pipe is horizontally fixed in the atomizing spray chamber, and an air outlet is provided on the lower surface of the air supply pipe facing the elongated mist outlet.

[0014] As an optimized solution, an overflow tube communicating with the atomizing chamber is fixedly connected to the side wall of the atomizing box.

[0015] As an optimized solution, an inlet cylinder communicating with the atomizing chamber is fixedly connected to the side wall of the atomizing box, and a vertical pipe section extending below the liquid surface is fixedly connected to the outlet end of the inlet cylinder.

[0016] As an optimized solution, a liquid source tank is connected between the outlet end of the overflow cylinder and the inlet end of the liquid inlet cylinder.

[0017] As an optimized solution, the lower end of the atomizing spray chamber is provided with a mounting hole, and the adjusting cylinder is rotatably installed in the mounting hole.

[0018] As an optimized solution, the axial section of the regulating cylinder is semi-circular, and end plates are fixed to both ends of the regulating cylinder. A rotating shaft is fixed to the center of the end plate and is rotatably mounted on the inner wall of the atomizing spray chamber via the rotating shaft.

[0019] As an optimized solution, a servo motor is fixedly connected to the outer wall of the atomizing box, and the output shaft of the servo motor is fixedly connected to one of the rotating shafts.

[0020] As an optimized solution, an air inlet cylinder is horizontally fixed to the side wall of the atomizing box, and the outlet end of the air inlet cylinder is connected to the inner cavity of the air supply pipe.

[0021] As an optimized solution, connecting plates are horizontally fixed to the opposite side walls of the atomizing box near the top, and fixing holes are provided on the connecting plates.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] Excellent uniformity: Ultrasonic atomization produces extremely fine and uniformly sized droplets that can evenly coat each fiber like "mist," completely eliminating streaks and unevenness caused by the failure of a single point nozzle, and greatly improving product quality.

[0024] Energy-saving and efficient: Ultrasonic atomization itself has very low energy consumption and does not require high-pressure pumping. It only requires low-pressure airflow to assist in delivery, and the overall energy consumption is far lower than that of traditional mechanical nozzle systems.

[0025] Easy to maintain and highly reliable: The device has no precision orifices, which fundamentally avoids clogging problems, ensures stable operation, and reduces downtime and maintenance time and costs;

[0026] High reagent utilization: Micron-sized droplets are more easily captured and adsorbed by fibers, reducing reagent scattering and waste, and lowering production costs and environmental impact;

[0027] High adaptability: By adjusting the ultrasonic power, liquid supply rate and gas flow rate, the atomization amount and droplet size can be easily controlled to adapt to the requirements of different types of emulsions and different production processes. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0029] Figure 1 This is a schematic diagram of the structure of this utility model.

[0030] In the diagram: 1-Atomizing box; 2-Baffle; 3-Atomizing spray chamber; 4-Atomizing chamber; 5-Ultrasonic atomizing module; 6-Overflow cylinder; 7-Liquid inlet cylinder; 8-Connecting plate; 9-Flow channel; 10-Air supply pipe; 11-Air outlet; 12-Air inlet cylinder; 13-Adjusting cylinder; 14-Long strip-shaped mist outlet; 15-End plate; 16-Rotating shaft; 17-Guide seat. Detailed Implementation

[0031] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0032] like Figure 1 As shown, the ultrasonic emulsion atomization device for spinning and melting includes an atomization box 1. A partition 2 is vertically fixed inside the atomization box 1, and the inner cavity of the atomization box 1 is divided into an atomization chamber 4 and an atomization ejection chamber 3 by the partition 2. A flow channel 9 is provided between the upper end of the partition 2 and the top of the atomization box 1.

[0033] An ultrasonic atomizing module 5 is fixedly installed at the bottom of the atomizing chamber 4. An adjusting cylinder 13 with its axis horizontally set is rotatably installed at the bottom of the atomizing spray chamber 3. The adjusting cylinder 13 has an elongated mist outlet 14 along its axis, which connects the atomizing spray chamber 3 to the outside.

[0034] An air supply pipe 10 is horizontally fixed inside the atomizing spray chamber 3, and an air outlet 11 is opened on the lower surface of the air supply pipe 10 facing the elongated mist outlet 14.

[0035] An overflow tube 6, which connects to the atomizing chamber 4, is fixedly attached to the side wall of the atomizing box 1.

[0036] A liquid inlet cylinder 7, which connects to the atomizing chamber 4, is fixedly connected to the side wall of the atomizing box 1. A vertical pipe section extending below the liquid surface is fixedly connected to the outlet end of the liquid inlet cylinder 7.

[0037] A liquid source tank is connected between the outlet end of the overflow cylinder 6 and the inlet end of the liquid inlet cylinder 7.

[0038] By setting the overflow cylinder 6, the liquid layer can be controlled so that the upper end of the ultrasonic atomizing module 5 is kept between 5-20mm and the liquid surface, preventing the liquid level from being too high and affecting the atomization effect of the ultrasonic atomizing module 5.

[0039] An installation hole is provided at the lower end of the atomizing spray chamber 3, and the adjusting cylinder 13 is rotatably installed in the installation hole.

[0040] The bottom of the atomizing spray chamber 3 is fixed with guide seats 17 located on both sides of the regulating cylinder 13. The guide seats 17 have arc-shaped surfaces that match the outer peripheral wall of the regulating cylinder 13. The upper surfaces of the two guide seats 17 are arranged in a downward tapering manner.

[0041] The axial section of the regulating cylinder 13 is semi-circular. End plates 15 are fixed to both ends of the regulating cylinder 13. A rotating shaft 16 is fixed to the center of the end plate 15 and is rotatably mounted on the inner wall of the atomizing spray chamber 3 via the rotating shaft 16.

[0042] The end plate 15 is in frictional contact with the inner wall of the atomizing spray chamber 3.

[0043] A servo motor is fixedly connected to the outer wall of the atomizing box 1, and the output shaft of the servo motor is fixedly connected to one of the rotating shafts 16.

[0044] An air inlet cylinder 12 is horizontally fixed to the side wall of the atomizing box 1, and the outlet end of the air inlet cylinder 12 is connected to the inner cavity of the air supply pipe 10.

[0045] A connecting plate 8 is horizontally fixed to the opposite side wall of the atomizing box 1 near the top, and a fixing hole is opened on the connecting plate 8.

[0046] The ultrasonic atomizing module 5 operates at a frequency of 1.7MHz - 2.4MHz and can convert electrical energy into high-frequency mechanical vibration, thereby breaking the emulsion flowing over its surface into fine droplets with an average particle size of 1-10 micrometers.

[0047] The regulating cylinder 13 is adjusted by a servo motor to adjust the outlet direction of the elongated mist outlet 14. The spray direction of the mist curtain should be at a small acute angle (10-20 degrees from the vertical direction) with the running direction of the fiber web, similar to "co-current spraying", to reduce disturbance and avoid the impact of high-speed airflow on the stretching and web formation process of the fiber web; increase the contact and interaction time between the fiber and the mist droplets in relative motion, and improve the adsorption efficiency; the mist droplets can gently wrap the fiber and penetrate into the interior of the fiber web from the side to achieve uniform distribution in three dimensions.

[0048] The working principle of this device is as follows:

[0049] The entire device is fixed to the meltblown production line by connecting plate 8, so that the narrow strip-shaped mist outlet 14 at the bottom of the atomizing box 1 is aligned parallel to the fiber web forming area below the meltblown die head.

[0050] During operation, the water pump in the liquid source tank pumps the emulsion through the inlet cylinder 7 into the atomization chamber 4. The emulsion flows to the surface of the ultrasonic atomization module 5 at the bottom. After the ultrasonic atomization module 5 is powered on, the piezoelectric ceramic ultrasonic transducer on it generates high-frequency vibration, which breaks the surface tension of the liquid and forms a large number of fine droplets. At the same time, dry compressed air is connected to the air supply pipe 10 through the outlet end of the air inlet cylinder 12 and sprayed out through the air outlet 11, carrying droplets through the elongated mist outlet 14, forming a "fog curtain" covering the entire width of the fabric. This fog curtain gently covers the newly spun fiber web, allowing the functional emulsion reagent to be fully and evenly adsorbed by each fiber.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. An ultrasonic emulsion atomizing device for spinning and melting, characterized in that: Includes an atomizing box (1), in which a partition (2) is vertically fixed, and the inner cavity of the atomizing box (1) is divided into an atomizing chamber (4) and an atomizing spray chamber (3) by the partition (2), and a flow channel (9) is provided between the upper end of the partition (2) and the top of the atomizing box (1). The bottom of the atomizing chamber (4) is fixedly provided with an ultrasonic atomizing module (5), and the bottom of the atomizing spray chamber (3) is provided with an adjusting cylinder (13) with its axis horizontally arranged. The adjusting cylinder (13) has an elongated mist outlet (14) along its axis, and the elongated mist outlet (14) connects the atomizing spray chamber (3) to the outside.

2. The ultrasonic emulsion atomizing device for spinning and melting according to claim 1, characterized in that: An air supply pipe (10) is horizontally fixed inside the atomizing spray chamber (3), and an air outlet (11) is opened on the lower surface of the air supply pipe (10) facing the elongated mist outlet (14).

3. The ultrasonic emulsion atomizing device for spinning and melting according to claim 1, characterized in that: An overflow tube (6) that connects to the atomizing chamber (4) is fixedly connected to the side wall of the atomizing box (1).

4. The ultrasonic emulsion atomizing device for spinning and melting according to claim 3, characterized in that: The atomizing box (1) is fixedly connected to the side wall of the atomizing chamber (4) with a liquid inlet cylinder (7) connected to it. The outlet end of the liquid inlet cylinder (7) is fixedly connected to a vertical pipe section extending below the liquid surface.

5. The ultrasonic emulsion atomizing device for spinning and melting according to claim 4, characterized in that: A liquid source tank is connected between the outlet end of the overflow cylinder (6) and the inlet end of the liquid inlet cylinder (7).

6. The ultrasonic emulsion atomizing device for spinning and melting according to claim 1, characterized in that: The lower end of the atomizing spray chamber (3) is provided with an installation hole, and the adjusting cylinder (13) is rotatably installed in the installation hole.

7. The ultrasonic emulsion atomizing device for spinning and melting according to claim 6, characterized in that: The axial section of the regulating cylinder (13) is semi-circular. End plates (15) are fixed to both ends of the regulating cylinder (13). A rotating shaft (16) is fixed to the center of the end plate (15) and is rotatably installed on the inner wall of the atomizing spray chamber (3) through the rotating shaft (16).

8. The ultrasonic emulsion atomizing device for spinning and melting according to claim 7, characterized in that: A servo motor is fixedly connected to the outer wall of the atomizing box (1), and the output shaft of the servo motor is fixedly connected to one of the rotating shafts (16).

9. The ultrasonic emulsion atomizing device for spinning and melting according to claim 2, characterized in that: An air inlet cylinder (12) is horizontally fixed to the side wall of the atomizing box (1), and the outlet end of the air inlet cylinder (12) is connected to the inner cavity of the air supply pipe (10).

10. The ultrasonic emulsion atomizing device for spinning and melting according to claim 1, characterized in that: The atomizing box (1) has horizontally fixed connecting plates (8) on opposite side walls near the top, and the connecting plates (8) have fixing holes.

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