Atomization rotating disc for tissue coating equipment
By designing an integrated convex strip structure and guide slope on the atomizing turntable of the paper towel coating equipment, the problems of atomization uniformity and structural dynamic imbalance are solved, the atomization effect and equipment stability are improved, and the risks of noise and cross-contamination are reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-19
- Publication Date
- 2026-03-20
AI Technical Summary
Existing atomizing turntables suffer from poor atomization uniformity and structural imbalance, leading to inconsistent product quality and the risk of cross-contamination.
An atomizing turntable for a tissue coating equipment was designed. It adopts an integrally molded first and second convex strip structure, combined with a flow guide channel and a guide slope. By splitting and diverting the flow guide channel, the uniformity of the liquid film is improved, and the stability of the equipment is enhanced during high-speed rotation.
It achieves uniform atomization and stable equipment operation, reduces noise and cross-contamination risks, and improves product quality consistency and equipment reliability.
Smart Images
Figure CN224010093U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of liquid atomization equipment, and in particular to an atomizing turntable for a tissue coating equipment. Background Technology
[0002] Liquid atomization technology is widely used in various fields such as chemical engineering, environmental protection, humidification, pharmaceuticals, food, and agricultural spraying. Its core objective is to break down liquids into small and uniform droplets to increase their specific surface area, thereby achieving uniform coverage.
[0003] Currently, the main methods for achieving liquid atomization are pressure atomization, gas atomization, and centrifugal atomization. Among them, centrifugal atomization has become an important atomization method due to its advantages such as simple structure, relatively low energy consumption, and resistance to clogging. Existing centrifugal atomization equipment typically uses a high-speed rotating disc. The liquid is transported to the center of the disc, spreads towards the edge under the action of centrifugal force, and is finally thrown out and broken into mist-like droplets at the edge.
[0004] However, existing atomizing discs have the following obvious drawbacks in practical applications:
[0005] 1. Poor atomization uniformity: Traditional rotary discs often employ flat, bowl-shaped, or toothed structures. Flat structures create unstable liquid films, resulting in a wide droplet size distribution and poor uniformity. While toothed structures can initially disperse the liquid, the size of the liquid filaments or droplets ejected between the teeth is difficult to maintain consistently, and this unevenness is easily exacerbated by processing errors or wear. This uneven atomization effect directly affects the quality of subsequent processes; for example, in spray drying, it can lead to inconsistent product particle size.
[0006] 2. Limitations of the disc structure: To achieve specific atomization or flow guiding effects, many turntables adopt a split structure, that is, multiple components (such as cover plates, base plates, gear rings, etc.) are combined together by welding, riveting, or bolting. This structure is not only complex and costly to manufacture, but more importantly, at high speeds, slight dynamic imbalances can easily occur at the joints, causing the turntable to jump and vibrate. This not only generates noise and shortens bearing life, but also further deteriorates the uniformity of atomization. In addition, liquid can easily remain in the gaps or steps at the joints, which can easily lead to cross-contamination or blockage risks in situations requiring frequent cleaning or material replacement. Utility Model Content
[0007] The technical problem to be solved by this utility model is to provide an atomizing turntable for a paper towel coating equipment.
[0008] To achieve the above objectives, this utility model discloses an atomizing turntable for a tissue coating device, comprising a disc body, a working chamber disposed downwards from the disc surface of the disc body, a liquid receiving portion at the center of the bottom surface of the working chamber, a plurality of first protrusions radially disposed between the outer wall of the liquid receiving portion and the inner wall of the working chamber circumference, a guide channel being formed between any two first protrusions, a second protrusion disposed within the guide channel to divide the guide channel in two, the inner wall of the working chamber circumference being configured as a guide slope, the disc body being driven to rotate by a rotary drive device to cause the coating liquid dripping onto the disc body to flow in a liquid film state into the plurality of guide channels, and to be split and diverted by the second protrusions.
[0009] Furthermore, the first protrusion and the second protrusion are integrally formed with the disc body, the height of the first protrusion is flush with the height of the liquid receiving part, and the height of the second protrusion is flush with the first protrusion.
[0010] Furthermore, the width of the flow channel gradually increases from the liquid receiving portion.
[0011] Furthermore, the second protrusion extends from the end of the flow channel toward the liquid receiving part, and its extension length is two-thirds of the length of the first protrusion.
[0012] Furthermore, the bottom of the working chamber is provided with a recessed area in an annular shape. The recessed area is arc-shaped in the vertical section. The recessed area is used to receive and buffer the coating liquid flowing out from the guide channel. Then, under the action of centrifugal force generated by the rotation of the disc, it is guided outward by the guide slope.
[0013] Furthermore, the side walls on both sides of the recessed area are respectively connected to the guide slope and the bottom of the working cavity;
[0014] The inclination angle of the guide ramp matches the inclination angle of the inner wall of the recess.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] 1. The middle and end sections of the flow channel are divided into two by the second convex strip. When the liquid flows through, it plays a role in compressing the variable (the width of the flow channel becomes smaller and the flow rate becomes larger). At the same time, it actively guides the liquid film to split and improves the uniformity of atomization.
[0017] 2. The first and second convex strips are integrated with the disc body to eliminate the hidden danger of dynamic imbalance and improve the stability and reliability of equipment operation. Attached Figure Description
[0018] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this embodiment;
[0019] Figure 2 This is a cross-sectional schematic diagram of the disk body in this embodiment;
[0020] Figure 3 for Figure 1 Enlarged schematic diagram of part A in the middle. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will be combined with... Figures 1-3 The accompanying drawings provide a further detailed description of this utility model.
[0022] Reference Figure 1 and Figure 2 As shown, an atomizing turntable for a paper towel coating device includes a turntable body 1, on which a working chamber 11 is provided, and the working chamber 11 is in communication with the surface of the turntable body 1.
[0023] A liquid receiving portion 12 is provided at the bottom of the working chamber 11, protruding upwards, and is located at the center of the disc body 1. In this embodiment, the outer contour of the liquid receiving portion 12 is circular.
[0024] Furthermore, the top of the liquid receiving part 12 is lower than the top of the disc body 1, thereby ensuring that the coating liquid is inside the working chamber 11.
[0025] Combined Figure 3 As shown, a plurality of first protrusions 2 are equidistantly arranged at the bottom of the working cavity 11 along the circumferential direction. In this embodiment, the outer contour of the first protrusions 2 is strip-shaped.
[0026] Several first protrusions 2 are located between the liquid receiving part 12 and the inner wall of the working chamber 11. Specifically, one end of the first protrusion 2 is fixedly connected to the outer periphery of the liquid receiving part 12, and the other end of the first protrusion 2 is fixedly connected to the inner wall of the working chamber 11. The top of the first protrusion 2 is flush with the top of the liquid receiving part 12, thereby ensuring that the liquid film is flat in the working chamber to achieve a stable atomization effect.
[0027] The space between two adjacent first protrusions 2 serves as a flow channel 3. During operation, the coating liquid is pumped through an external pipeline to the center of the surface of the receiving part 12 and flows into the flow channel 3.
[0028] Furthermore, the width of the flow channel 3 gradually increases from the liquid receiving part 12. As the area of the flow channel 3 gradually increases, it provides more space for the liquid, forcing the liquid flow to spread laterally under the action of centrifugal force, forming a thinner and more uniform liquid film.
[0029] Furthermore, a second protrusion 4 is provided in the flow channel 3. Specifically, the second protrusion 4 extends from the cavity wall of the working chamber 11 toward the liquid receiving part 12 and is parallel to the first protrusion 2.
[0030] In this embodiment, the end of the second protrusion 4 is semi-circular, which is beneficial for guiding and separating the liquid film.
[0031] In this embodiment, the length of the second protrusion 4 is two-thirds of the length of the first protrusion 2, thereby ensuring that the liquid film has sufficient splitting flow distance; the height of the second protrusion 4 is the same as that of the first protrusion 2.
[0032] Compared with the prior art, the second protrusion 4 provided in the flow channel 3 in this embodiment has the following advantages:
[0033] 1. The middle and end sections of the flow channel are divided into two parts, which compresses the variable (the width of the flow channel becomes smaller and the flow rate becomes larger) when the liquid flows through it;
[0034] 2. Actively guide liquid film splitting to improve atomization uniformity;
[0035] 3. Optimize the distribution of the liquid film as the disk 1 rotates to prevent the liquid film from "shrinking" or "aggregating," thereby ensuring the atomization effect;
[0036] 4. When rotating at high speed, the edge of the turntable may undergo slight deformation. At this time, the first convex strip 2 and the second convex strip 4 are equivalent to adding "reinforcing ribs" to the disc body 1, which can improve the structural rigidity and stability of the end of the disc body 1 to a certain extent, reduce vibration, and ensure the smoothness of the atomization process.
[0037] It should be noted that in this embodiment, the liquid receiving part 12, the first protrusion 2, and the second protrusion 4 are integrally formed with the disc body 1.
[0038] Reference Figure 2 and Figure 3 As shown, further, the inner wall of the working cavity 11 is provided as a guide slope 111 in the vertical section. Specifically, the higher end of the guide slope 111 is connected to the opening edge of the disk body 1, and the lower end is directed toward the center of the disk body 1.
[0039] In this embodiment, the inclined angle of the guide slope 111 compresses the liquid film output from the guide channel 3, making it thinner and more uniform. Furthermore, the guide slope 111 also guides the direction and reduces turbulence, so that the liquid filament breaks more uniformly, and the droplets are naturally finer and more uniform.
[0040] Furthermore, a recessed position 5 is provided at the bottom of the working chamber 11 in an annular shape. The recessed position 5 is arc-shaped in the vertical section so that the opening of the recessed position 5 is funnel-shaped, which is conducive to the inflow and outflow of liquid film.
[0041] The side walls on both sides of the recessed position 5 are connected to the guide slope 111 and the bottom of the working cavity 11, respectively. Furthermore, the inclination angle of the guide slope 111 matches the inclination angle of the inner side wall of the recessed position 5, thereby ensuring smooth flow of the liquid film.
[0042] During operation, the coating liquid drips onto the top of the receiving part 12. The disk 1 is driven by the rotary drive device to rotate circumferentially. As the disk 1 rotates, the dripping coating liquid flows in a liquid film state into several guide channels 3 of the disk 1. The second protrusion 4 forces a relatively thick liquid film to be evenly divided into two thinner and more uniform liquid filaments before leaving the disk 1, thereby improving the atomization uniformity and flow stability. Then the liquid film flows to the concave position 5 for energy storage and flow stabilization. Finally, under the centrifugal force generated by the rotation of the disk 1, it is guided by the guide slope 111 and thrown into the air to atomize into a large number of tiny droplets.
[0043] In this embodiment, the concave part and the guide slope form a synergistic effect of "constraint first, release later". Specifically, the concave part gathers and stabilizes the liquid film at the end of the flow channel to ensure that the droplet size distribution is more concentrated and uniform. The guide slope accurately throws the constrained liquid flow into the air at a better angle and shape.
[0044] Furthermore, the recessed area can hold a small amount of liquid during low flow rates or startup / shutdown, preventing it from leaving the disc in an irregular dripping manner when it does not have enough energy to form a liquid filament, thus ensuring the lower limit of atomization quality.
[0045] The overall design of the disc in this embodiment can improve energy efficiency, focusing the centrifugal force generated by rotation on liquid atomization rather than wasting it on friction or turbulence.
[0046] Of course, the above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They cannot be used to limit the protection scope of this utility model. All modifications made in accordance with the spirit of the main technical solution of this utility model should be covered within the protection scope of this utility model.
Claims
1. An atomizing turntable for a tissue coating equipment, characterized in that, The device includes a disc body (1), which has a working cavity (11) arranged downward from its disc surface. The bottom center of the working cavity (11) has a liquid receiving part (12). A plurality of first protrusions (2) are arranged radially between the outer wall of the liquid receiving part (12) and the inner wall of the working cavity (11). A guide channel (3) is formed between any two first protrusions (2). A second protrusion (4) is arranged in the guide channel (3) to divide the guide channel (3) into two. The inner wall of the working cavity (11) is set as a guide slope (111). The disc body (1) is driven to rotate by a rotary drive device so that the coating liquid dripping on the disc body (1) flows into the plurality of guide channels (3) in a liquid film state and is split and diverted by the second protrusion (4).
2. The atomizing turntable for a tissue coating device according to claim 1, characterized in that, The first protrusion (2) and the second protrusion (4) are integrally formed with the disc body (1). The height of the first protrusion (2) is the same as the height of the liquid receiving part (12), and the height of the second protrusion (4) is the same as the first protrusion (2).
3. The atomizing turntable for a tissue coating device according to claim 1, characterized in that, The width of the flow channel (3) gradually increases from the liquid receiving part (12).
4. The atomizing turntable for a tissue coating apparatus according to any one of claims 1-2, characterized in that, The second protrusion (4) extends from the end of the flow channel (3) toward the liquid receiving part (12), and its extension length is two-thirds of the length of the first protrusion (2).
5. The atomizing turntable for a tissue coating device according to claim 1, characterized in that, The bottom of the working chamber (11) is provided with a recessed part (5) in an annular shape. The recessed part (5) is arc-shaped in the vertical section. The recessed part (5) is used to receive and buffer the coating liquid flowing out from the guide channel (3). Then, under the action of centrifugal force generated by the rotation of the disc (1), it is guided outward by the guide slope (111).
6. The atomizing turntable for a tissue coating apparatus according to claim 5, characterized in that, The side walls on both sides of the recess (5) are connected to the guide slope (111) and the bottom of the working cavity (11); The inclination angle of the guide slope (111) matches the inclination angle of the inner wall of the recess (5).