Spraying equipment

Abstract

The spraying equipment comprises a bearing platform, a negative pressure generator and a spraying head, the bearing platform is provided with a bearing face, and the bearing face is a hollow face; the negative pressure generator is positioned below the bearing surface and is used for generating negative pressure below the bearing surface; the spray head is located above the bearing face and used for spraying a workpiece placed on the bearing face. The bearing surface of the bearing platform is arranged to be of the hollowed-out structure, and the negative pressure generator is arranged below the bearing surface so that the negative pressure generator can generate negative pressure below the bearing surface, so that air flow penetrates through the hollowed-out area of the bearing surface from the upper portion of the bearing surface to flow to the lower portion of the bearing surface; therefore, the sprayed object can be prevented from forming atomized turbulent flow in the spraying process, secondary pollution of the sprayed object to a product is reduced, and the wiping efficiency and the product percent of pass are improved.

Description

Technical Field

[0001] The invention relates to the technical field of glass processing, and in particular to a spraying device. Background Art

[0002] In the manufacturing process of mobile phones, a glass cover is usually installed on the mobile phone to protect the electronic components inside the mobile phone. Since the glass cover is a transparent material, in order to prevent the human eye from seeing the electronic components inside the mobile phone through the glass cover, its surface is treated with ink to protect the glass cover and improve the appearance of the mobile phone. In the existing spraying equipment, the spray is affected by the pressure of the atomizing valve to form turbulence above the workbench, and is adsorbed on the non-spraying surface of the product to form a foggy surface oil. Summary of the invention

[0003] In order to solve the technical problems existing in the background technology, the present invention proposes a spraying device.

[0004] A spraying device proposed by the present invention comprises:

[0005] The bearing platform has a bearing surface, and the bearing surface is a hollow surface;

[0006] A negative pressure generator is located below the bearing surface and is used to generate negative pressure below the bearing surface;

[0007] A spray head is located above the bearing surface and is used for spraying the workpiece placed on the bearing surface.

[0008] Preferably, a negative pressure chamber is provided inside the carrying platform below the carrying surface thereof, the negative pressure chamber containing the carrying surface inside thereof, and the air inlet of the negative pressure generator is connected to the negative pressure chamber.

[0009] Preferably, the air inlet of the negative pressure generator is located at the center of the bottom of the negative pressure chamber.

[0010] Preferably, the air inlet of the negative pressure generator is connected to an air extraction pipeline, and the air inlet end of the air extraction pipeline is located below the bearing surface and faces the bearing surface.

[0011] Preferably, the bearing surface is preset with a placement area for placing the workpiece, the air inlet end of the air exhaust pipe is located below the placement area, and the diameter of the air inlet end is larger than the surface where the placement area is located.

[0012] Preferably, a positioning seat is provided in the placement area.

[0013] Preferably, the air inlet of the negative pressure emitter is located below the carrying surface and faces the carrying surface.

[0014] Preferably, the bearing surface is preset with a placement area for placing the workpiece, and the negative pressure generator is provided with a plurality of air inlets, each of which is evenly distributed on the periphery of the placement area in the circumferential direction.

[0015] Preferably, a positioning seat is provided in the placement area.

[0016] In the present invention, the bearing surface of the bearing platform is set as a hollow structure, and the negative pressure generator is set below the bearing surface to generate negative pressure below the bearing surface by the negative pressure generator, so that the air flow passes through the hollow area of ​​the bearing surface from the top of the bearing surface to the bottom of the bearing surface, thereby avoiding the formation of atomized turbulence in the spraying process, reducing the secondary contamination of the spray to the product parts, and improving the wiping efficiency and product qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of the bearing surface in a spraying device proposed by the present invention;

[0018] Figure 2 A schematic diagram of the structure of a spraying device proposed by the present invention Figure 1 ;

[0019] Figure 3 A schematic diagram of the structure of a spraying device proposed by the present invention Figure 2 ;

[0020] Figure 4 A schematic diagram of the positions of the bearing surface and the exhaust pipe in a spraying device proposed by the present invention in a top view;

[0021] Figure 5 This is a distribution diagram of multiple air inlets of the negative pressure generator in the bearing surface of the spraying equipment proposed by the present invention on the periphery of the placement area. DETAILED DESCRIPTION

[0022] Reference Figure 1 , a spraying device proposed by the present invention comprises: a carrying platform, a negative pressure generator 2, and a spray head (not shown in the figure) for performing a spraying operation;

[0023] The carrying platform has a carrying surface 1, which is a hollow surface; a negative pressure generator 2 is located below the carrying surface 1 to generate negative pressure below the carrying surface 1; and a spray head is located above the carrying surface 1 to spray a workpiece placed on the carrying surface 1.

[0024] When working, the workpiece is placed on the bearing surface 1 of the bearing platform, and the negative pressure generator 2 is started to form a negative pressure under the bearing surface 1 by using the negative pressure generator 2 to prevent the spray from forming atomized turbulence during the spraying process.

[0025] Furthermore, in this embodiment, the carrying surface 1 is preset with a placement area for placing the workpiece, and the placement area is provided to ensure the consistency of the placement position of the workpiece.

[0026] Furthermore, a positioning seat 5 is provided in the placement area. During operation, the workpiece is placed on the positioning seat 5 so that the positioning seat 5 supports the workpiece.

[0027] Furthermore, in this embodiment, the design relationship between the negative pressure generator 2 and the bearing surface 1 includes at least the following:

[0028] First, refer to Figure 2 : A negative pressure chamber 3 is arranged inside the carrying platform and below the carrying surface 1, and the air inlet of the negative pressure generator 2 is connected to the negative pressure chamber 3. The negative pressure generator 2 evacuates the negative pressure chamber 3 to form a negative pressure below the carrying surface 1. The design advantage of this structure is that it can ensure that the entire bottom of the carrying surface 1 is in the negative pressure zone, so that the workpiece can be placed at any position on the carrying surface 1.

[0029] Furthermore, the air inlet of the negative pressure generator 2 is located at the center of the bottom of the negative pressure chamber 3 .

[0030] Second, refer to Figure 3 : The air inlet of the negative pressure generator 2 is connected to the exhaust pipe 4, and the air inlet end of the exhaust pipe 4 is arranged below the bearing surface 1 and faces the bearing surface 1. When the negative pressure generator 2 uses the exhaust pipe 4 to exhaust air below the bearing surface 1, negative pressure is formed below the bearing surface 1. The design advantage of this structure is that the position of the negative pressure generator 2 can be arbitrarily placed according to the needs of the site, and the specifications, size and position of the exhaust pipe 4 can be changed at will according to the needs.

[0031] Reference Figure 4 The bearing surface 1 is preset with a placement area for placing the workpiece. The air inlet end of the exhaust pipe 4 is located below the placement area, and the diameter of the air inlet end is larger than the surface where the placement area is located, so as to ensure that the position where the workpiece is placed each time can be in the area with the maximum negative pressure intensity, thereby increasing the effective utilization rate of the negative pressure.

[0032] Furthermore, a positioning seat 5 is provided in the placement area. During operation, the workpiece is placed on the positioning seat 5 so that the positioning seat 5 supports the workpiece.

[0033] Third, refer to Figure 5 : The air inlet of the negative pressure emitter is arranged below the bearing surface 1 and faces the bearing surface 1. The advantage of this structural design is that the negative pressure generator 2 can be directly fixed below the bearing surface 1, but the coverage area of ​​a single air inlet is small and cannot meet the spraying requirements of large workpieces.

[0034] Furthermore, the bearing surface 1 is preset with a placement area for placing the workpiece, and the negative pressure generator 2 is provided with a plurality of air inlets, each of which is evenly distributed around the periphery of the placement area (such as Figure 5 as shown) to form a uniform negative pressure on the periphery below the placement area.

[0035] Furthermore, a positioning seat 5 is provided in the placement area. During operation, the workpiece is placed on the positioning seat 5 so that the positioning seat 5 supports the workpiece.

[0036] As can be seen from the above, the present invention arranges the bearing surface 1 of the bearing platform into a hollow structure, and arranges the negative pressure generator 2 below the bearing surface 1 so that the negative pressure generator 2 generates negative pressure below the bearing surface 1, so that the air flow flows from the top of the bearing surface 1 through the hollow area of ​​the bearing surface 1 to the bottom of the bearing surface 1, thereby avoiding the formation of atomized turbulence in the spraying process, reducing the secondary contamination of the spray to the product parts, and improving the wiping efficiency and product qualification rate.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A spraying device, characterized in that: A bearing platform, the bearing platform having a bearing surface (1), the bearing surface (1) being a hollow surface; A negative pressure generator (2), the negative pressure generator (2) is located below the carrying surface (1) and is used to generate negative pressure below the carrying surface (1); A spray head is located above the carrying surface (1) and is used for spraying a workpiece placed on the carrying surface (1).

2. A spraying device according to claim 1, characterized in that: A negative pressure chamber (3) is provided inside the bearing platform below the bearing surface (1) and wraps the bearing surface (1) inside thereof, and an air inlet of the negative pressure generator (2) is connected to the negative pressure chamber (3).

3. A spraying device according to claim 2, characterized in that: The air inlet of the negative pressure generator (2) is located at the central part of the bottom of the negative pressure chamber (3).

4. A spraying device according to claim 1, characterized in that: The air inlet of the negative pressure generator (2) is connected to an air extraction pipeline (4), and the air inlet end of the air extraction pipeline (4) is located below the bearing surface (1) and faces the bearing surface (1).

5. A spraying device according to claim 4, characterized in that: The bearing surface (1) is preset with a placement area for placing workpieces, the air inlet end of the air extraction pipeline (4) is located below the placement area, and the diameter of the air inlet end is larger than the surface where the placement area is located.

6. A spraying device according to claim 5, characterized in that: A positioning seat (5) is arranged in the placement area.

7. A spraying device according to claim 1, characterized in that: The air inlet of the negative pressure emitter is located below the bearing surface (1) and faces the bearing surface (1).

8. A spraying device according to claim 7, characterized in that: The bearing surface (1) is preset with a placement area for placing workpieces, and the negative pressure generator (2) is provided with a plurality of air inlets, each of which is evenly distributed on the periphery of the placement area in the circumferential direction.

9. A spraying device according to claim 8, characterized in that: A positioning seat (5) is arranged in the placement area.

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