CN219003460U

CN219003460U - Spraying system

Info

Publication number: CN219003460U
Application number: CN202223494580.3U
Authority: CN
Inventors: 吴楚辉; 王仲培; 曾伟伦; 覃仕辉
Original assignee: Fulian Yuzhan Technology Shenzhen Co Ltd
Current assignee: Fulian Yuzhan Technology Shenzhen Co Ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-05-12
Anticipated expiration: 2032-12-27

Abstract

The utility model relates to the technical field of spraying, and particularly discloses a spraying system which comprises a spraying device and a jig platform. The spraying device is provided with a discharge hole so as to spray the material on the surface of the workpiece; the jig platform is arranged opposite to the discharge hole, the jig platform is used for placing a workpiece, the size of a supporting surface of the jig platform for supporting the workpiece is not larger than that of the workpiece, at least part of the side wall of the jig platform is an inclined wall, and the inclined wall is inclined outwards from one end close to the supporting surface to the other end. When the spraying system is used for spraying, a workpiece is placed on the supporting surface of the jig platform, and then the spraying device is used for spraying the workpiece. Even if the material is sprayed to the jig platform in the spraying process, the side wall of the jig platform is at least partially an inclined wall, and the inclined wall is inclined outwards from one end close to the supporting surface to the other end, so that the material can be splashed back to the area beyond the workpiece after being reflected by the inclined wall, the risk that the material is sputtered on the back of the workpiece is reduced, and the spraying quality of the workpiece is improved.

Description

Spraying system

Technical Field

The utility model relates to the technical field of spraying, in particular to a spraying system.

Background

In the process of manufacturing products such as electronic devices, a spraying process is commonly used, such as coating a high-volatility colloidal adhesion promoter on a stainless steel sheet. And during spraying, the workpiece is placed in the jig, and the spraying device is adopted to spray the workpiece from the upper part of the workpiece so as to form a coating on the front surface of the workpiece. A groove for placing a workpiece is formed in the conventional jig, the workpiece is placed in the groove, and the edge of the workpiece is attached to the side wall of the jig. When spraying, the colloid overflows to the back of the workpiece due to capillary action. The fixture is also provided with a supporting platform on the fixture base body to support the workpiece, and the size of the supporting platform is smaller than that of the workpiece, but colloid can be sprayed to the fixture base body and splashed back to the back of the workpiece during spraying, so that the back of the workpiece overflows.

In summary, how to effectively solve the problems of glue overflow on the back surface and the like during workpiece spraying is a problem that needs to be solved by those skilled in the art at present.

Disclosure of Invention

Therefore, the present utility model is directed to a spraying system, which is designed to effectively solve the problem of adhesive overflow on the back surface during spraying of a workpiece.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a spray coating system, comprising:

the spraying device is provided with a discharge hole so as to spray the material on the surface of the workpiece;

the jig platform is arranged opposite to the discharge hole and is used for placing the workpiece, the size of a supporting surface of the workpiece is not larger than that of the workpiece, the side wall of the jig platform is at least partially an inclined wall, and the inclined wall is inclined outwards from one end close to the supporting surface to the other end.

Optionally, in the spraying system, the inclined wall includes an inclined plane and/or a curved plane.

Optionally, in the spraying system, an included angle between the inclined plane and the discharging direction of the discharging hole ranges from 30 degrees to 60 degrees.

Optionally, in the spraying system, a dimension of the jig platform corresponding to an end of the inclined wall away from the supporting surface is larger than a dimension of the workpiece.

Optionally, in the above spraying system, the jig platform includes a supporting portion and a reflecting portion, the supporting portion is columnar, the reflecting portion is connected to the supporting portion, the supporting surface is an end surface of the supporting portion away from the reflecting portion, and the inclined wall is a side wall of the reflecting portion.

Optionally, in the above spraying system, a positioning portion for positioning the workpiece is provided on the jig platform.

Optionally, in the spraying system, the method further includes:

the dust removing device is provided with a negative pressure air port, and the negative pressure air port is arranged at the discharge port and/or at the jig platform to absorb waste gas.

Optionally, in the spraying system, the dust removing device includes:

the protective cover is covered outside the discharge hole, the opening of the protective cover faces the jig platform, and the negative pressure air port is the opening;

and the exhaust pipe is communicated with the protective cover and is used for being communicated with a negative pressure source.

Optionally, in the above spraying system, the spraying device includes:

a piezoelectric valve having a cavity for receiving the material;

the nozzle is arranged at the outlet end of the cavity and comprises at least one air outlet.

Optionally, in the above spraying system, a plurality of air outlets are provided, one of the air outlets is provided at a center of the nozzle, and the remaining air outlets are uniformly distributed along a circumferential direction of the nozzle.

The spraying system provided by the utility model comprises a spraying device and a jig platform. The spraying device is provided with a discharge hole so as to spray the material on the surface of the workpiece; the jig platform is arranged opposite to the discharge hole, the jig platform is used for placing a workpiece, the size of a supporting surface of the jig platform for supporting the workpiece is not larger than that of the workpiece, the side wall of the jig platform is at least partially an inclined wall, and the inclined wall is inclined outwards from one end close to the supporting surface to the other end.

When the spraying system provided by the utility model is used for spraying, a workpiece is placed on the supporting surface of the jig platform, and then the spraying device is used for spraying the workpiece. Even if the material is sprayed to the jig platform in the spraying process, the side wall of the jig platform is at least partially an inclined wall, and the inclined wall is inclined outwards from one end close to the supporting surface to the other end, so that the material can be splashed back to the area beyond the workpiece after being reflected by the inclined wall, the risk that the material is sputtered on the back of the workpiece is reduced, and the spraying quality of the workpiece is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic illustration of a spray coating system according to one embodiment of the present utility model;

FIG. 2 is an isometric view of the jig platform of FIG. 1;

FIG. 3 is a side view of FIG. 2;

FIG. 4 is a schematic view of the part of the portion A in FIG. 1;

FIG. 5 is a schematic view of the spray coating device of FIG. 1;

fig. 6 is a schematic bottom view of the nozzle of fig. 5.

The figures are marked as follows:

the spraying device 100, a discharge hole 101, a piezoelectric valve 110, a nozzle 120, a jig platform 200, a supporting surface 201, an inclined wall 202, a supporting part 210, a reflecting part 220, a positioning part 230, a dust removing device 300, a negative pressure air inlet 301, a protective cover 310, an exhaust tube 320, an XYZ three-axis motion system 400, an X-axis guide rail 410, a Y-axis guide rail 420, a Z-axis guide rail 430, a cabinet 500, and an included angle alpha between the inclined plane and the discharge direction of the discharge hole, wherein only a part of the exhaust tube is shown in fig. 1.

Detailed Description

The embodiment of the utility model discloses a spraying system for reducing the risk of material back splash to the back of a workpiece during spraying.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The spraying system provided by the application is applicable to, but not limited to, coating a high volatile colloid adhesion promoter on a stainless steel sheet, namely materials mentioned in the application comprise, but not limited to, the high volatile colloid adhesion promoter, and workpieces mentioned in the application comprise, but not limited to, the stainless steel sheet, and the materials can be molded on the workpieces through the spraying system so as to form a spraying coating.

Referring to fig. 1-6, fig. 1 is a schematic structural diagram of a spraying system according to an embodiment of the utility model; FIG. 2 is an isometric view of the jig platform of FIG. 1; FIG. 3 is a side view of FIG. 2; FIG. 4 is a schematic view of the part of the portion A in FIG. 1; FIG. 5 is a schematic view of the spray coating device of FIG. 1; fig. 6 is a schematic bottom view of the nozzle of fig. 5.

In one embodiment, the present utility model provides a spray coating system comprising a spray coating device 100 and a jig platform 200. The spraying device 100 is provided with a discharge hole 101 for spraying materials on the surface of a workpiece. The type of the spraying device 100 may be specifically selected according to the shape and the like of the material, and is not particularly limited herein. The jig platform 200 is disposed opposite to the discharge port 101 and is used for placing a workpiece, so that the material sprayed from the discharge port 101 can be applied to the workpiece. In order to facilitate spraying, the jig platform 200 may be disposed below the discharge port 101, or the jig platform 200 may be disposed at one side of the discharge port 101 in the horizontal direction, so that the material is sprayed onto the workpiece under the action of the spraying device 100 and formed on the workpiece. The size of the supporting surface 201 of the jig platform 200 for supporting the workpiece is not greater than the size of the workpiece, and the supporting surface 201 of the jig platform 200 is specifically configured for supporting the workpiece, where the size is not greater than the size of the workpiece, so as to avoid adhesion of the material to the back surface of the workpiece, and if the size of the supporting surface 201 is greater than the back surface of the workpiece, the material is caused to be sprayed on the supporting surface 201 of the jig platform 200 during spraying, and then the material flows to or is formed on the back surface of the workpiece due to capillary action. The sidewall of the jig platform 200 is at least partially an inclined wall 202, and the inclined wall 202 is inclined outwards from one end close to the supporting surface 201 to the other end. It will be appreciated that the outward tilt herein is directed away from the interior of the jig platform 200 to reflect material to the side away from the workpiece.

When the spraying system provided by the utility model is used for spraying, a workpiece is placed on the supporting surface 201 of the jig platform 200, and then the spraying device 100 is used for spraying the workpiece. Even if the material is sprayed to the jig platform 200 in the spraying process, the side wall of the jig platform 200 is at least partially provided with the inclined wall 202, and the inclined wall 202 is inclined outwards from one end close to the supporting surface 201 to the other end, so that the material can be splashed back to the area beyond the workpiece after being reflected by the inclined wall 202, the risk that the material is sputtered to the back of the workpiece is reduced, and the spraying quality of the workpiece is improved.

In one embodiment, the sloped wall 202 includes sloped planar and/or curved surfaces. The inclined wall 202 may include an inclined plane, so that for materials with the same incident direction, the emergent direction of the materials reflected by the inclined plane may be the same. The inclined wall 202 may also include a curved surface, so that the materials with the same incident direction may have different emergent directions after being reflected by the curved surface. The back splash angle of the material after reflection can be controlled by adjusting the slope of the inclined plane and the curvature radius of the curved surface, so that the back splash of the material to the back of the workpiece can be avoided as much as possible.

In one embodiment, the inclined plane forms an angle α in the range of 30 ° to 60 ° with the discharge direction of the discharge opening 101. The included angle alpha between the inclined plane and the discharging direction of the discharging hole 101 can be specifically 30 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees, 55 degrees and 60 degrees, so that in the material spraying process, the material is reflected by the inclined plane after entering the inclined plane, and is splashed to the outside of the workpiece, and the material on the back surface of the workpiece is not formed.

In one embodiment, the dimension of the jig platform 200 at the end of the inclined wall 202 away from the supporting surface 201 is larger than the dimension of the workpiece. The inclined wall 202 is inclined outwards from one end close to the supporting surface 201 to one end far away from the supporting surface 201, the size of one end far away from the supporting surface 201 is larger than that of a workpiece, the size of one end close to the supporting surface 201 is smaller than that of the workpiece, and then the projection of the edge of the workpiece falls on the inclined wall 202 along the discharging direction of the discharging hole 101, so that the material sprayed out of the discharging hole 101 can be splashed out of the workpiece to a great extent, and the material is prevented from being formed on the back of the workpiece.

In one embodiment, the four sidewalls of the jig platform 200 are provided with the inclined walls 202, for example, when the workpiece is a rectangular workpiece, the inclined walls 202 are respectively disposed on four sides of the jig platform 200 corresponding to the workpiece, and when the inclined walls 202 are inclined planes, the four inclined planes are respectively inclined along the corresponding directions. Through all setting up the inclined wall 202 with tool platform 200's lateral wall all around, then all around inclined wall 202 can all reflect the material when the spraying, prevents better that the material from back splash to the back of work piece. It will be appreciated that, depending on the location of the coating on the workpiece, in other embodiments, the sloped walls 202 may be provided on only one or more side walls of the jig platform 200.

In one embodiment, referring to fig. 2 and 3, the jig platform 200 includes a supporting portion 210 and a reflecting portion 220, the supporting portion 210 is in a column shape, the reflecting portion 220 is connected to the supporting portion 210, the supporting surface 201 is an end surface of the supporting portion 210 away from the reflecting portion 220, and the inclined wall 202 is a side wall of the reflecting portion 220. The supporting portion 210 is mainly used for supporting a workpiece, and is configured to have a certain thickness, so that after the workpiece is placed on the supporting portion 210, when the material is incident on the jig platform 200 along the edge of the workpiece, the material falls onto the inclined wall 202 more easily, and is splashed back out of the workpiece. In addition, the supporting portion 210 may be correspondingly disposed according to the shape of the workpiece to position the workpiece according to the shape of the workpiece. The reflecting portion 220 is mainly used for reflecting the material so as to splash the material back out of the workpiece. The reflecting portion 220 may be specifically in a prismatic table shape, and then the side wall of the prismatic table is the inclined wall 202. The bottom surface of the reflecting portion 220 is preferably larger than the workpiece, so that when the workpiece is placed on the supporting surface 201, the projection of the edge of the workpiece in the discharging direction of the discharge port 101 falls on the side wall of the reflecting portion 220, that is, the inclined wall 202. In other embodiments, the end surface of the reflecting portion 220 may be directly used as the supporting surface 201 to support the workpiece, that is, the supporting portion 210 is not provided, and the effect of preventing the material from splashing during spraying can be also achieved. For example, the jig platform 200 may be in a prismatic table shape, the side wall of the prismatic table is an inclined wall 202, and the top surface is a supporting surface 201. The jig platform 200 may further include a base, wherein the reflective portion 220 is connected to the base, and a top surface of the base is larger than a bottom surface of the reflective portion 220.

In one embodiment, the jig platform 200 is provided with a positioning portion 230 for positioning with a workpiece. By setting the positioning portion 230, the workpiece can be positioned, thereby improving the placement accuracy of the workpiece and further improving the position accuracy of spraying. The positioning part 230 is correspondingly arranged according to the structural shape of the workpiece, and can comprise a positioning groove matched with the bulge on the workpiece or a positioning bulge corresponding to the concave on the workpiece.

In one embodiment, the spray coating system further comprises a dust removal device 300, the dust removal device 300 having a negative pressure air port 301, the negative pressure air port 301 being provided at the discharge port 101 and/or at the jig platform 200 to suck the exhaust gas. Taking the material as the high volatile colloid adhesion promoter for example, the spraying pressure is higher, and the high volatile colloid adhesion promoter has high volatility, so that in the spraying process, redundant colloid forms filiform dirt due to the volatilization of a solvent, the workpiece is extremely easy to pollute, and finally the appearance of the product is poor. Therefore, by adding the dust removing device 300 and arranging the negative pressure air port 301 of the dust removing device 300 at the discharge port 101 or the jig platform 200, waste gas can be timely and effectively sucked, dirt is removed, the spraying quality of workpieces is ensured, and the spraying stability is improved.

In one embodiment, referring to FIG. 4, a dust extraction device 300 includes a shroud 310 and an exhaust duct 320. Wherein, the protection cover 310 covers the discharge hole 101, and the opening of the protection cover 310 faces the jig platform 200, and the negative pressure air port 301 is an opening. Suction tube 320 is in communication with shield 310, and suction tube 320 is configured to communicate with a negative pressure source. Then, the exhaust pipe 320 is externally connected with a negative pressure source, negative pressure is formed inside the protective cover 310 through the exhaust pipe 320, and the opening of the protective cover 310 is the negative pressure air port 301, so that the exhaust gas nearby the protective cover is effectively sucked away in time. Because the protective cover 310 is covered outside the discharge hole 101, no matter the spraying is carried out at any position of the workpiece, the waste gas can be timely sucked away. The size of the opening of the shield 310 may be specifically set as desired. The dust removing device 300 adopts the above arrangement, and has simple structure and high dust removing efficiency. In other embodiments, the exhaust tube 320 may be directly disposed near the jig platform 200, where the exhaust tube 320 is used for communicating with a negative pressure source, and then the opening of the exhaust tube 320 is the negative pressure air port 301, so that dust removal can also be achieved. Alternatively, a dust cover may be provided on the jig platform 200 and the coating apparatus 100, and a negative pressure air port 301 may be provided on the dust cover and connected to a negative pressure source, so that a dust removal effect may be achieved.

In one embodiment, taking the material as the high volatile colloid adhesion promoter as an example, the traditional needle type point gum machine is difficult to accurately control the glue outlet amount due to the low viscosity and high volatility of the high volatile colloid adhesion promoter, so that a manual pen coating mode is adopted. However, manual pen coating presents the risk of uneven coating thickness and glue spillage. Referring to fig. 5 and 6, the spray coating device 100 of the present application includes a piezoelectric valve 110 and a nozzle 120. Wherein the piezoelectric valve 110 has a cavity for accommodating a material; the nozzle 120 is arranged at the outlet end of the cavity, the nozzle 120 comprises at least one discharge hole 101, and the discharge hole 101 is also the air outlet because the nozzle 120 can atomize the material. The piezoelectric valve 110 has a small discharge amount, and the width of the formed coating fluctuates less with time. The piezoelectric valve 110 is combined with the nozzle 120 to form a piezoelectric atomization valve, so that a trace amount of materials such as glue can be atomized and then uniformly sprayed on a workpiece, and the spraying effect is improved. In other embodiments, the spraying device 100 may also use other spraying devices such as a piezoelectric valve 110, a pneumatic valve, etc. according to the materials.

In one embodiment, a plurality of discharge ports 101 are provided, and one of the discharge ports 101 is provided at the center of the nozzle 120, and the remaining discharge ports 101 are uniformly distributed along the circumferential direction of the nozzle 120. The conventional nozzle 120 adopts a structure with a single discharge hole 101, the formed coating is easy to have a thick middle and thin edge, in this embodiment, the discharge holes 101 of the nozzle 120 are arranged in a plurality, and the discharge holes 101 are uniformly distributed at the periphery according to one of the discharge holes at the center, and compared with the single discharge hole 101, the liquid drops sprayed by the discharge holes 101 are smaller, so that the thickness of the formed coating is more uniform.

In one embodiment, the spraying system further includes an XYZ three-axis motion system 400, and the spraying device 100 is disposed in the XYZ three-axis motion system 400, so that the spraying device 100 can be driven to move in space by the XYZ three-axis motion system 400 to adjust the relative position with the jig platform 200. Specifically, the XYZ three-axis motion system 400 includes two Y-axis guide rails 420 disposed opposite to each other, the two Y-axis guide rails 420 are slidably connected with an X-axis guide rail 410, the X-axis guide rail 410 can move along the Y-axis guide rail 420, the X-axis guide rail 410 is slidably connected with a Z-axis guide rail 430, and the Z-axis guide rail 430 can move along the X-axis guide rail 410, and the spraying device 100 is slidably connected with the Z-axis guide rail 430 so as to lift along the Z-axis guide rail 430. The positions of the spraying device 100 and the jig platform 200 are adjusted by the actions of the X-axis guide rail 410, the Y-axis guide rail 420 and the Z-axis guide rail 430, so that high-precision automatic spraying is realized.

In one embodiment, the spraying system is provided with two spraying devices 100, which are both connected to the XYZ three-axis motion system 400, so as to move synchronously under the drive of the XYZ three-axis motion system 400, and two jig platforms 200 are provided corresponding to the two spraying devices 100, so that two workpieces can be sprayed simultaneously through the spraying system, and the spraying efficiency is further improved.

In one embodiment, the spraying device 100 further includes a cabinet 500, and the xyz three-axis motion system 400 and the jig platform 200 are mounted on the cabinet 500. Through the setting of cabinet 500, the transportation of whole spraying system is convenient for.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A spray coating system, comprising:

a spraying device (100), wherein the spraying device (100) is provided with a discharge hole (101) for spraying materials on the surface of a workpiece;

tool platform (200) with discharge gate (101) set up relatively, tool platform (200) are used for placing the work piece, tool platform (200) support holding surface (201) size of work piece is not greater than the size of work piece, just the lateral wall of tool platform (200) is local at least and is inclined wall (202), inclined wall (202) are by being close to one end to the other end outside slope of holding surface (201).

2. The spray system of claim 1, wherein the sloped wall (202) comprises sloped planar and/or curved surfaces.

3. The spraying system according to claim 2, characterized in that the inclined plane forms an angle in the range of 30 ° to 60 ° with the discharge direction of the discharge opening (101).

4. The spray system of claim 1, wherein an end of the jig platform (200) corresponding to the inclined wall (202) remote from the support surface (201) is sized larger than the workpiece.

5. The spray coating system according to claim 1, wherein the jig platform (200) comprises a supporting portion (210) and a reflecting portion (220), the supporting portion (210) is columnar, the reflecting portion (220) is connected to the supporting portion (210), the supporting surface (201) is an end surface of the supporting portion (210) away from the reflecting portion (220), and the inclined wall (202) is a side wall of the reflecting portion (220).

6. The spray system of claim 1, wherein the jig platform (200) is provided with a locating portion (230) for locating with the workpiece.

7. The spray coating system of any one of claims 1-6, further comprising:

the dust removing device (300) is provided with a negative pressure air port (301), and the negative pressure air port (301) is arranged at the discharge port (101) and/or at the jig platform (200) to absorb waste gas.

8. The spray system of claim 7, wherein the dust removal device (300) comprises:

the protective cover (310) is covered outside the discharge hole (101), an opening of the protective cover (310) faces the jig platform (200), and the negative pressure air port (301) is the opening;

and the exhaust pipe (320) is communicated with the protective cover (310), and the exhaust pipe (320) is used for being communicated with a negative pressure source.

9. The spraying system according to any one of claims 1-6, wherein the spraying device (100) comprises:

a piezo valve (110), the piezo valve (110) having a cavity for receiving the material;

the nozzle (120) is arranged at the outlet end of the cavity, and the nozzle (120) comprises at least one discharge hole (101).

10. The spraying system as claimed in claim 9, wherein a plurality of the discharge ports (101) are provided, and wherein one of the discharge ports (101) is provided at the center of the nozzle (120), and the remaining discharge ports (101) are uniformly distributed along the circumferential direction of the nozzle (120).