Electrostatic atomization spray beam device

Abstract

The utility model provides an electrostatic atomization spray beam device which comprises a first aluminum alloy plate, a second aluminum alloy plate, a liquid storage cavity, a flow equalizing plate, a base plate and a high pressure generator, a plurality of flow guide grooves are evenly formed in one face of the first aluminum alloy plate, the second aluminum alloy plate is a flat plate, and the bottom end of the first aluminum alloy plate and the bottom end of the second aluminum alloy plate are each of a sawtooth-shaped structure. The first aluminum alloy plate and the second aluminum alloy plate form a spraying beam structure, the top end of the spraying beam structure is connected with the liquid storage cavity, a liquid outlet hole is formed in the position, corresponding to the flow guide groove, of the bottom end of the liquid storage cavity, a liquid inlet hole is formed in the top end of the liquid storage cavity, and the flow equalizing plates are transversely arranged in the liquid storage cavity. The substrate is located under the spraying beam structure, and the negative electrode of the high-voltage generator is connected with the substrate and the ground. The coating device can be suitable for coated parts with various widths, and is simple in structure and easy to process and manufacture.

Description

Technical Field

[0001] The utility model relates to the technical field of coating equipment, in particular to an electrostatic atomization spray beam device. Background Art

[0002] In industries such as industrial manufacturing and food packaging and processing, liquids need to be atomized and then coated on the surface of the product, requiring uniform coating and precise controllable coating amount. The technology of electrostatically assisted atomization is widely used in production. Its principle is to apply a DC high voltage between the nozzle and the coated part to form an electrostatic field. When the liquid is sprayed from the nozzle, the droplets will be charged. When the intensity of the electrostatic field increases to a certain level, these charged droplets will undergo unstable explosion to form micro-nano droplets, achieving the effect of droplet atomization. Under the action of the electrostatic field, these atomized droplets are adsorbed on the surface of the coated part. In the existing technology, solid conical nozzles and straight slit spray beams are usually used to coat parts. Since solid conical nozzles have poor atomization effect on low-viscosity liquids, adjustment is relatively complicated when coating a wide surface. Straight slit spray beams are difficult to operate for micro coating amounts and are relatively complex to manufacture. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides an electrostatic atomizing spray beam device, which can be suitable for coated parts of various widths, has a simple structure, and is easy to process and manufacture.

[0004] The technical solutions adopted in this utility model are as follows:

[0005] An electrostatic atomizing spray beam device includes: a first aluminum alloy plate, a second aluminum alloy plate, a liquid storage chamber, a flow equalizing plate, a substrate and a high-voltage generator, wherein a plurality of guide grooves are evenly provided on one side of the first aluminum alloy plate, the second aluminum alloy plate is a flat plate, the bottom ends of the first aluminum alloy plate and the second aluminum alloy plate are both serrated structures, the first aluminum alloy plate and the second aluminum alloy plate constitute a spray beam structure, the top end of the spray beam structure is connected to the liquid storage chamber, the bottom end of the liquid storage chamber is provided with a liquid outlet corresponding to the position of the guide groove, the top end of the liquid storage chamber is provided with a liquid inlet, the flow equalizing plate is arranged horizontally inside the liquid storage chamber, the positive pole of the high-voltage generator is connected to the spray beam structure, the substrate is located directly below the spray beam structure, and the negative pole of the high-voltage generator is connected to the substrate and the ground respectively.

[0006] In one embodiment of the present invention, the top of the guide groove and the top of the second aluminum alloy plate constitute a first guide hole, the bottom of the guide groove and the bottom of the second aluminum alloy plate constitute a second guide hole, and the width of the first guide hole is greater than the width of the second guide hole.

[0007] In one embodiment of the present invention, the liquid storage chamber and the flow equalizing plate are both made of aluminum alloy.

[0008] In one embodiment of the present invention, the height of the flow equalizing plate is smaller than the depth of the liquid storage cavity.

[0009] Beneficial effects of the utility model:

[0010] The utility model evenly opens a plurality of guide grooves on one side of a first aluminum alloy plate, and closely connects the first aluminum alloy plate and the second aluminum alloy plate to form a spray beam structure, and the spray beam structure is connected to the liquid storage chamber, and the positive electrode of the high-voltage generator is connected to the spray beam structure, and the negative electrode of the high-voltage generator is connected to the substrate and the ground respectively. Thus, the utility model can be suitable for coated parts of various widths, and has a simple structure and is easy to process and manufacture. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic structural diagram of an electrostatic atomization spray beam device according to an embodiment of the present utility model;

[0012] Figure 2 This is a schematic structural diagram of a first aluminum alloy plate according to an embodiment of the present invention;

[0013] Figure 3 This is a schematic structural diagram of a second aluminum alloy plate according to an embodiment of the present invention;

[0014] Figure 4 This is a schematic structural diagram of a diversion hole according to an embodiment of the present invention;

[0015] Figure 5 This is a cross-sectional view along the S direction of an embodiment of the present invention. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] Figure 1 This is a schematic structural diagram of an electrostatic atomization spray beam device according to an embodiment of the present utility model.

[0018] like Figure 1As shown, the electrostatic atomizing spray beam device of an embodiment of the present invention includes: a first aluminum alloy plate 1, a second aluminum alloy plate 2, a liquid storage chamber 3, a flow equalizing plate 4, a substrate 5 and a high-voltage generator 6. A plurality of guide grooves 11 are evenly provided on one side of the first aluminum alloy plate 1, the second aluminum alloy plate 2 is a flat plate, and the bottom ends of the first aluminum alloy plate 1 and the second aluminum alloy plate 2 are both serrated structures. The first aluminum alloy plate 1 and the second aluminum alloy plate 2 constitute a spray beam structure, and the top of the spray beam structure is connected to the liquid storage chamber 3. A liquid outlet 31 is provided at the bottom end of the liquid storage chamber 3 corresponding to the position of the guide groove 11, and a liquid inlet 32 ​​is provided at the top of the liquid storage chamber 3. The flow equalizing plate 4 is arranged horizontally inside the liquid storage chamber 3, the positive pole of the high-voltage generator 6 is connected to the spray beam structure, the substrate 5 is located directly below the spray beam structure, and the negative pole of the high-voltage generator 6 is connected to the substrate 5 and the ground respectively.

[0019] In one embodiment of the present invention, Figure 2 and Figure 3 As shown, the first aluminum alloy plate 1 can be processed or pressed to form a guide groove 11. Since the second aluminum alloy plate 2 is a flat plate, the first aluminum alloy plate 1 and the second aluminum alloy plate 2 can be tightly connected to form a guide hole.

[0020] In one embodiment of the present invention, Figure 4 As shown, the top of the guide groove 11 and the top of the second aluminum alloy plate 2 form a first guide hole A, and the bottom of the guide groove 11 and the bottom of the second aluminum alloy plate 2 form a second guide hole B. The width of the first guide hole A is greater than the width of the second guide hole B. The guide hole adopts the principle of the Laval nozzle. When the liquid enters the second guide hole B from the first guide hole A, it can better increase the speed of the liquid injection, and cooperate with the electric field generated by the high-voltage generator 6 to further promote the atomization effect.

[0021] In one embodiment of the present invention, Figure 5 As shown, the height of the flow equalizing plate 4 is less than the depth of the liquid storage chamber 3. When the liquid enters the liquid storage chamber 3 from the liquid inlet hole 32, the liquid cannot flow into the liquid outlet hole 31 due to the obstruction of the flow equalizing plate 4. When the height of the liquid accumulated by the flow equalizing plate 4 is greater than the height of the flow equalizing plate 4, it can flow evenly through the flow equalizing plate 4 to the liquid outlet hole, and be sprayed onto the coated component placed on the substrate 5 through the guide hole.

[0022] In one embodiment of the present invention, the liquid storage chamber 3 and the flow equalizing plate 4 can both be made of aluminum alloy material.

[0023] In summary, the utility model evenly opens a plurality of guide grooves on one side of the first aluminum alloy plate, and closely connects the first aluminum alloy plate and the second aluminum alloy plate to form a spray beam structure, and the spray beam structure is connected to the liquid storage chamber, and the positive electrode of the high-voltage generator is connected to the spray beam structure, and the negative electrode of the high-voltage generator is respectively connected to the substrate and the ground. Thus, the utility model can be suitable for coated parts of various widths, and has a simple structure and is easy to process and manufacture.

[0024] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. "Multiple" means two or more, unless otherwise specifically defined.

[0025] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0026] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0027] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0028] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An electrostatic atomization spray beam device, characterized in that: include: A first aluminum alloy plate, a second aluminum alloy plate, a liquid storage chamber, a current equalizing plate, a substrate and a high-voltage generator, wherein a plurality of guide grooves are evenly provided on one side of the first aluminum alloy plate, the second aluminum alloy plate is a flat plate, the bottom ends of the first aluminum alloy plate and the second aluminum alloy plate are both serrated structures, the first aluminum alloy plate and the second aluminum alloy plate constitute a spray beam structure, the top end of the spray beam structure is connected to the liquid storage chamber, the bottom end of the liquid storage chamber is provided with a liquid outlet corresponding to the position of the guide groove, the top end of the liquid storage chamber is provided with a liquid inlet, the current equalizing plate is arranged horizontally inside the liquid storage chamber, the positive pole of the high-voltage generator is connected to the spray beam structure, the substrate is located directly below the spray beam structure, and the negative pole of the high-voltage generator is connected to the substrate and the ground respectively.

2. The electrostatic atomization spray beam device according to claim 1, characterized in that: The top of the guide groove and the top of the second aluminum alloy plate form a first guide hole, the bottom of the guide groove and the bottom of the second aluminum alloy plate form a second guide hole, and the width of the first guide hole is greater than that of the second guide hole.

3. The electrostatic atomization spray beam device according to claim 2, characterized in that: The liquid storage cavity and the flow equalizing plate are both made of aluminum alloy.

4. The electrostatic atomization spray beam device according to claim 3, characterized in that: The height of the flow equalizing plate is smaller than the depth of the liquid storage cavity.

Images