Atomizing disc free of back suction

Abstract

The utility model discloses a back-suction-free atomizing disc, which relates to the technical field of accessories of high-speed atomizer equipment and comprises a disc body, a feed port is arranged at the top of the disc body and communicated with a cavity positioned in the disc body, a plurality of discharge holes communicated with the cavity are arranged on the peripheral side of the disc body, and the discharge holes are communicated with the feed port. A discharging hole is formed in the disc body, a nozzle and a plug are arranged in the discharging hole in a matched mode, the nozzle and the plug are of a detachable structure, the nozzle and the plug are of a central symmetry structure with the axis of the disc body as the center, an upper protection edge is arranged on the upper portion of the circumferential side of the disc body, and the upper protection edge blocks the space above the disc body on the side face. The utility model provides a back-suction-free atomizing disc which has the advantages that the wear resistance of the atomizing disc is improved, and materials are prevented from being sucked into the upper part of the atomizing disc by negative pressure to cause material accumulation.

Description

Technical Field

[0001] The utility model relates to the technical field of high-speed atomizer equipment accessories, in particular to a back-absorption-free atomizing disc. Background Art

[0002] Centrifugal atomizers typically use a high-speed motor to drive a gearbox, which transmits the speed to the main shaft after speed change. The atomizing disk is mounted at the lower end of the main shaft. Material enters the distributor from the top of the feed pipe downward. The distributor evenly distributes the liquid material into the atomizing disk for centrifugal atomization, resulting in a product with smaller particles. The atomizing disk has a discharge hole on the side. The material moves outward under the action of centrifugation and is ejected outward through the discharge hole to achieve atomization. Because some materials contain particles and may be corrosive, they cause severe wear on the discharge hole. This wear can disrupt the dynamic balance of the atomizing disk, thereby affecting the normal operation of the atomizer. Therefore, the wear resistance of the atomizing disk is particularly important. However, the atomizing disks currently on the market have poor wear resistance, resulting in a short service life. Furthermore, the high-speed rotation of the atomizing disk creates a rapidly flowing airflow above it, creating negative pressure. This causes the material ejected from the discharge hole to be sucked into the upper part of the atomizing disk by the negative pressure. The upper part of the atomizing disk is usually a gap between the distributor housing and other components, making material accumulation difficult to clean. Over time, material accumulation can cause wear and tear, leading to the atomizing disk losing its dynamic balance and causing more serious mechanical damage. Furthermore, in low-flow atomization, that is, when the atomizing disk's centrifugal speed is not high, the ejected material is not fast and is particularly susceptible to being sucked into the negative pressure. Utility Model Content

[0003] Technical problems to be solved by utility models

[0004] In response to the technical problems that the existing atomizing disc has poor wear resistance, the sprayed material is easily sucked into the top of the atomizing disc by negative pressure, the material accumulation is difficult to clean, and the accumulated material wears out over a long period of time, the utility model provides a back-absorption-free atomizing disc, which improves the wear resistance of the atomizing disc and prevents the material from being sucked into the top of the atomizing disc by negative pressure, resulting in material accumulation.

[0005] Technical Solution

[0006] In order to solve the above problems, the technical solution provided by the present invention is as follows:

[0007] A back-absorption-free atomization disk comprises a disk body, a feed port is provided on the top of the disk body, the feed port is connected to a cavity located in the disk body, a plurality of discharge holes connected to the cavity are provided on the circumference of the disk body, the discharge holes are matched with nozzles and plugs, the nozzles and the plugs are detachable structures, the nozzles and the plugs are symmetrical structures with the axis of the disk body as the center, an upper guard edge is provided on the upper part of the circumference of the disk body, and the upper guard edge blocks the space above the disk body on the side.

[0008] The feed port allows material to enter the atomizing disk from above. The cavity holds the material, and after the atomizing disk rotates at high speed, the material is ejected from the side discharge holes. Both the nozzle and the plug are compatible with the discharge holes and can be removably attached to the discharge holes. Both the nozzle and the plug are replaceable, extending the service life of the disk. The nozzle can still function as the discharge hole, ejecting material outward, while the plug blocks the discharge hole, reducing the amount of material that can be discharged. The background art mentions that during low-flow atomization, i.e., when the centrifugal speed of the atomizing disk is not high, the ejected material is slow and is particularly susceptible to being drawn in by negative pressure. The introduction of the plug can block some of the discharge holes at low flow rates, maintaining a low flow rate without reducing the material ejection speed from the discharge holes. This allows the atomizing disk to maintain a higher centrifugal speed even with low-flow atomization, increasing the material ejection speed and reducing the chance of material being drawn in by negative pressure. The nozzle and the plug are symmetrically arranged around the axis of the disk, maintaining the dynamic balance of the atomizing disk and preventing severe wear or damage if it becomes unbalanced. The upper guard edge is located on the path where the material is sucked in by the negative pressure, and is used to prevent the ejected material from being sucked in by the negative pressure.

[0009] Optionally, the nozzle and the plug are spaced apart.

[0010] The material has a speed when it is ejected from the nozzle, and the material also exerts a force on the disc. If the nozzles are set continuously, it is easy to cause the disc to lose dynamic balance when rotating, resulting in wear and damage.

[0011] Optionally, the hole wall of the discharge hole is conical, the cone is small on the outside and large on the inside, and the nozzle and the plug are conical objects adapted to the discharge hole.

[0012] The tapered hole wall matches the tapered nozzle and plug, with a smaller outer edge and larger inner edge to match the outward ejection path of the material. When the material exerts force on the nozzle or plug, it blocks the material from flowing out of the discharge hole. Furthermore, the tapered shape presses the nozzle or plug more firmly into the discharge hole during material ejection, preventing it from falling out and improving the dynamic stability of the disc.

[0013] Optionally, a spray hole is provided in the nozzle, and an inner end of the spray hole is provided with an outwardly extending inclined guide surface.

[0014] When the material is ejected outward, the inclined guide surface squeezes the material toward the central axis of the discharge hole, forming a greater pressure. After the material is subjected to greater pressure, the atomized particles are more uniform and the effect is better.

[0015] Optionally, an arc-shaped annular groove is provided on the inner wall of the cavity.

[0016] When the material enters the cavity of the disc from above, it has an impact force. The arc-shaped annular groove can guide the downward impact force into an outward force, reducing the impact force on the inner wall of the disc, reducing wear and extending the service life.

[0017] Optionally, an inner wall of the cavity is provided with an annular step.

[0018] When the material enters the cavity of the disc from above, the material falls from the inner side of the disc and first contacts the inner wall of the disc. The annular step can reduce the height of the material falling, thereby reducing the impact force, reducing wear and extending the service life.

[0019] Optionally, the nozzle is made of wear-resistant material.

[0020] The nozzle is in direct contact with the high-speed ejected material, and the use of wear-resistant materials can reduce wear and extend its service life.

[0021] Optionally, the disc body is an integrally formed structure.

[0022] The disc body is a single-piece component made from a single material through a molding process, without additional welding, bonding, or other connection methods. The advantages of one-piece molding are that it provides better structural stability and sealing, reduces the risk of leakage caused by joints, and has higher durability and reliability.

[0023] Beneficial effects

[0024] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:

[0025] In the technical solution provided by the present invention, the nozzle and the plug are both adapted to match the discharge hole and can be detachably installed on the discharge hole. Both the nozzle and the plug can be replaced, which increases the service life of the disc. The nozzle can still perform the function of the discharge hole and spray materials outward, while the plug blocks the discharge hole, reducing the outlet of the material. By introducing the plug, some discharge holes can be blocked under low flow conditions. While maintaining a low flow rate, the material discharge speed of the discharge hole is not reduced. In this way, even with a low flow rate atomization, the centrifugal speed of the atomizing disc can be adjusted to a higher level, thereby increasing the material discharge speed and reducing the chance of the material being sucked into the negative pressure. The nozzle and the plug are symmetrical structures with the axis of the disc as the center, which can maintain the dynamic balance of the atomizing disc and avoid serious wear or damage after imbalance. The upper guard edge is located on the path where the material is sucked into the negative pressure, which can prevent the sprayed material from being sucked into the negative pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic structural diagram of a back-absorption-free atomizing disk proposed in an embodiment of the present utility model;

[0027] Figure 2 A partial schematic diagram of a back-absorption-free atomizing disk proposed in an embodiment of the present utility model;

[0028] Figure 3A schematic structural diagram of a nozzle of a back-absorption-free atomizing disk proposed in an embodiment of the present utility model;

[0029] Figure 4 A schematic structural diagram of a back-absorption-free atomizing disk plug according to an embodiment of the present invention;

[0030] 1. Cover shell; 2. Disc body; 3. Cavity; 301. Arc-shaped annular groove; 302. Annular step; 4. Discharge hole; 5. Nozzle; 501. Spray hole; 502. Oblique guide surface; 6. Plug; 7. Upper guard edge; 8. Gap; 9. Feed port. DETAILED DESCRIPTION

[0031] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings and embodiments.

[0032] Example

[0033] Combined with attachment Figure 1 A back-absorption-free atomizer disk includes a disk body 2, a feed port 9 is provided on the top of the disk body 2, and the feed port 9 is annular. An axial hole 10 is provided in the middle of the disk body 2 to cooperate with the transmission shaft. The axial hole 10 is larger at the top and smaller at the bottom, and is adapted to the transmission shaft. Bolts and nuts are provided at the ends of the transmission shaft for fixing.

[0034] The feed port 9 is connected to the cavity 3 located in the disk body 2. The cavity 3 is an annular space that receives the material and provides space for material compression when the atomizing disk rotates. The top of the cavity 3 is provided with an edge on the outside to prevent the material from splashing upwards.

[0035] The circumferential side of the disc body 2 is provided with a plurality of discharge holes 4 communicating with the cavity 3 . In this embodiment, there are eight discharge holes 4 , which are evenly distributed around the circumference to maintain the dynamic balance of the disc body 2 during rotation.

[0036] The discharge hole 4 is matched with a nozzle 5 and a plug 6. The nozzle 5 and the plug 6 are symmetrical structures with the axis of the disc body 2 as the center. In this embodiment, four nozzles 5 and four plugs 6 are provided, which are arranged at intervals in the discharge hole 4. The nozzles 5 are symmetrical with the nozzles 5, and the plugs 6 are symmetrical with the plugs 6. Since the weights of the nozzles 5 and the plugs 6 are different, this arrangement can maintain the dynamic balance of the disc body 2 in stillness and rotation, and avoid wear and damage caused by imbalance.

[0037] The nozzle 5 and the plug 6 are detachable structures, which are convenient for users to replace and clean as needed. When replacing, the nozzle 5 or the plug 6 can be removed by poking the discharge hole 4 inward with a thin rod from the outside of the atomizing disk.

[0038] An upper guard 7 is provided around the upper portion of the pan body 2, laterally blocking the space above the pan body 2. Extending from the upper portion of the pan body 2, the upper guard 7 is integrally formed with the pan body 2, providing strong structural strength. During rotation, the upper guard 7 blocks a gap 8 between the pan body 2 and the upper housing 1. The negative pressure created in this gap 8 allows material to be drawn in only from the space between the upper guard 7 and the housing 1, an area with minimal material, minimizing the likelihood of material accumulation.

[0039] Combined with attachment Figure 2 The inner wall of the cavity 3 is provided with an arcuate annular groove 301. The inner wall of the cavity 3 is provided with an annular step 302. The arcuate annular groove 301 is below the annular step 302. The material near the inner side first contacts the annular step 302 and then enters the arcuate annular groove 301, changing from downward movement to circumferential movement.

[0040] Combined with attachment Figure 4 The hole wall of the discharge hole 4 is conical, the cone is small on the outside and large on the inside, and the nozzle 5 and the plug 6 are conical objects adapted to the discharge hole 4.

[0041] The nozzle 5 is provided with a spray hole 501, and the inner end of the spray hole 501 is provided with an outward-extending inclined guide surface 502 to increase the contact area with the material. Under the centrifugal effect, the material moves outward and is squeezed against the material on the inclined guide surface 502, which is beneficial to improving the speed and uniformity of material injection.

[0042] The nozzle 5 is made of a wear-resistant material. Wear-resistant metal materials refer to metals or alloys that can maintain a long service life under conditions of mechanical wear. In this embodiment, high-carbon steel can be used. High-carbon steel has good hardness and wear resistance and is suitable for making tools and molds.

[0043] The tray body 2 is a one-piece structure, reducing the number of joints between components and potential failure points due to seams. This monolithic structure can better withstand external stresses, providing greater structural stability and durability. Compared to traditional multi-component assemblies, one-piece structures are generally lighter. Because they are manufactured as a single piece, they can achieve higher dimensional accuracy and surface quality. This reduces assembly steps, simplifies the production process, and can sometimes reduce costs.

[0044] The above is a schematic description of the present invention and its embodiments, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by this and, without departing from the inventive purpose of the present invention, designs a structure and embodiment similar to the technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A back-absorption-free atomizing disk, characterized in that: It includes a disc body, a feed port is provided on the top of the disc body, the feed port is connected to the cavity located in the disc body, a plurality of discharge holes connected to the cavity are provided on the circumference of the disc body, the discharge holes are matched with nozzles and plugs, the nozzles and the plugs are detachable structures, the nozzles and the plugs are symmetrical structures with the axis of the disc body as the center, an upper guard edge is provided on the upper part of the circumference of the disc body, and the upper guard edge blocks the upper space of the disc body on the side.

2. The back-absorption-free atomizing disk according to claim 1, characterized in that: The nozzle and the plug are spaced apart.

3. The back-absorption-free atomizing disk according to claim 1, characterized in that: The hole wall of the discharge hole is conical, the cone is small on the outside and large on the inside, and the nozzle and the plug are conical objects adapted to the discharge hole.

4. The back-absorption-free atomizing disk according to claim 3, characterized in that: A spray hole is provided in the nozzle, and an outwardly extending inclined flow guide surface is provided at the inner end of the spray hole.

5. The back-absorption-free atomizer disk according to claim 1, characterized in that: An arc-shaped annular groove is provided on the inner wall of the cavity.

6. The back-absorption-free atomizer disk according to claim 1 or 5, characterized in that: An inner wall of the cavity is provided with an annular step.

7. The back-absorption-free atomizer disk according to claim 1, characterized in that: The nozzle is made of wear-resistant material.

8. The back-absorption-free atomizer disk according to claim 1, characterized in that: The disc body is an integrally formed structure.

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