Spraying shielding tool

Abstract

The utility model discloses a spraying shielding tool, which belongs to the technical field of display screen production and is characterized in that a first connecting part and a second connecting part which are movably connected with a base are arranged on the base, the first connecting part and the second connecting part are mutually inclined or vertical, and a shielding block is arranged at the intersection of the first connecting part and the second connecting part; the end part of the shielding block is detachably connected to the first connecting part and the second connecting part, and the relative position between the shielding block and the base can be adjusted by adjusting the first connecting part and the second connecting part, so that the shielding block can flexibly shield areas, needing to be shielded, of circuit boards of different specifications. And therefore, the application range of the spraying shielding tool is wider.

Description

TECHNICAL FIELD

[0001] The utility model relates to display screen production technical field especially relates to a kind of spraying shielding tool. BACKGROUND

[0002] The control circuit board of LED display screen usually needs to be sprayed with ink and paint to improve the insulation performance and waterproof performance of the control circuit board. Some areas of the control circuit board do not require spraying, so a specially designed shielding tool is needed to shield these areas to prevent ink and paint from being sprayed onto them. The existing shielding tool is usually specially designed according to the design of the control circuit board, i.e., it has several fixed shielding structures (such as plates or rods) on it. When the spraying device is in operation, some of the ink or paint sprayed by the device will be blocked by the shielding structures, preventing the actual spraying area on the control circuit board from coming into contact with the components that do not require spraying.

[0003] However, the design of the control circuit board is constantly evolving, and the designs of different types of control circuit boards are different, with components arranged in different positions. This results in a significant increase in the weight and number of shielding tools. Whenever a new type of control circuit board is developed, a corresponding shielding tool needs to be manufactured, resulting in a significant waste of resources. SUMMARY

[0004] To overcome the shortcomings of the prior art, the purpose of the present utility model is to provide a spraying shielding tool to solve the problem that the existing shielding tool cannot be widely applied to various circuit boards.

[0005] The purpose of the present utility model is achieved by the following technical solutions:

[0006] A spraying shielding tool includes a base, a first connecting component, a second connecting component, and a shielding block.

[0007] The first connecting component and the second connecting component are movably connected to the base, and the first connecting component and the second connecting component are arranged at an angle to each other or perpendicular to each other.

[0008] The shielding block is located at the intersection between the first connecting component and the second connecting component, and the shielding block is detachably connected to the first connecting component and the second connecting component.

[0009] Preferably, the base is provided with a first guide portion, and the end of the first connecting component is provided with a first sliding block that is slidably connected to the first guide portion.

[0010] And / or, the base is provided with a second guide portion, and the end of the second connecting component is provided with a second sliding block that is slidably connected to the second guide portion.

[0011] Preferably, the first guide part and the second guide part are perpendicular to each other, the first connecting part is perpendicular to the first guide part, and the second connecting part is perpendicular to the second guide part.

[0012] Preferably, the end of the shielding block is provided with a first connecting groove and a second connecting groove intersecting each other, the first connecting part is detachably embedded in the first connecting groove, and the second connecting part is detachably embedded in the second connecting groove.

[0013] Preferably, the base is further provided with a bottom plate parallel to the base, and the bottom plate is used for supporting the circuit board to be sprayed.

[0014] The base and the bottom plate are detachably connected, and the shielding block is located between the base and the bottom plate.

[0015] Preferably, the bottom plate is provided with a receiving cavity opposite to the shielding block, and the circuit board is embedded in the receiving cavity.

[0016] Preferably, the base is further provided with a guide assembly, and the guide assembly comprises a guide column and a guide hole which are slidably connected.

[0017] One of the guide column and the guide hole is arranged on the bottom plate, and the other is arranged on the base.

[0018] Preferably, the base is annular, and the shielding block is located on the inner side of the base.

[0019] Preferably, the base is provided with a plurality of baffles arranged around the shielding block.

[0020] Preferably, the first connecting part is a cable, and both ends of the first connecting part are provided with the first sliding block.

[0021] Preferably, the second connecting part is the cable, and both ends of the second connecting part are provided with the second sliding block.

[0022] Compared with the prior art, the utility model has the beneficial effects that:

[0023] The base is provided with the first connecting part and the second connecting part which are movably connected thereto, the first connecting part and the second connecting part are inclined to each other or perpendicular to each other, the shielding block is arranged at the intersection of the first connecting part and the second connecting part, and the end of the shielding block is detachably connected to the first connecting part and the second connecting part. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The whole structure schematic view of the spraying shielding tool of the utility model;

[0025] Figure 2 The explosion schematic view of the spraying shielding tool of the utility model;

[0026] Figure 3 The explosion schematic view of the spraying shielding tool of the utility model;

[0027] Figure 4 The Figure 1 The enlarged schematic view of A in the figure;

[0028] In the figure: 10, base; 11, first guide part; 12, second guide part; 13, guide column; 14, baffle; 20, first connecting part; 21, first sliding block; 30, second connecting part; 31, second sliding block; 40, shielding block; 41, first connecting groove; 42, second connecting groove; 50, bottom plate; 51, accommodating cavity; 52, guide hole; 60, circuit board. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present utility model, the present utility model will be described more fully below with reference to the attached drawings. Preferred embodiments of the present utility model are provided in the drawings. However, the present utility model can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0030] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be intervening elements. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can be present. As used herein the terms "vertical", "horizontal", "left", "right" and similar terms are used for explanation only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present utility model belongs. The terminology used in the description of the present utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present utility model. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0032] Example 1

[0033] In combination with Figures 1 to 4As shown, the spraying shielding tool of the utility model is schematically shown, including base 10, first connecting component 20, second connecting component 30 and shielding block 40.Base 10, first connecting component 20, second connecting component 30 and shielding block 40 are preferably made of existing anticorrosion materials.

[0034] First connecting component 20 and second connecting component 30 are movably connected to base 10, that is, first connecting component 20 (and / or second connecting component 30) can be rotationally connected to base 10 or can be slidingly connected to base 10, first connecting component 20 and second connecting component 30 are arranged to be mutually inclined or mutually perpendicular, shielding block 40 is located at the intersection between first connecting component 20 and second connecting component 30, and the position of shielding block 40 can be adjusted by the movement of first connecting component 20 and second connecting component 30 relative to base 10, so that shielding block 40 is shielded in the non-spraying area, thereby realizing precise coverage of the non-spraying area.In this embodiment, each shielding block 40 corresponds to the intersection of one first connecting component 20 and one second connecting component 30, so that shielding block 40 can move on a reference plane parallel to the spraying plane.In addition, the surface of first connecting component 20 and second connecting component 30 can be sprayed with 10 μm to 100 μm thick Teflon or other existing corrosion-resistant materials to improve its durability and corrosion resistance and ensure stable performance during long-term use.

[0035] In combination Figure 1 And Figure 4 The end of shielding block 40 is detachably connected to first connecting component 20 and second connecting component 30, especially when shielding block 40 needs to be replaced or adjusted, it only needs to be simply detached and reinstalled, greatly improving the convenience and flexibility of operation.Especially when first connecting component 20 and second connecting component 30 are both slidingly connected to base 10, and first connecting component 20 and second connecting component 30 are both provided with a plurality of shielding blocks 40, the shielding blocks 40 at the spraying area of control circuit board 60 can be detached from first connecting component 20 and second connecting component 30, and the intersection between first connecting component 20 and second connecting component 30 at the non-spraying area is installed with shielding block 40, thereby flexibly adjusting the position and number of shielding blocks 40, which can adapt to control circuit boards 60 of various specifications and sizes.

[0036] Specifically, as Figure 2 And Figure 3The base 10 is provided with a first guide part 11 and a second guide part 12, the first guide part 11 and the second guide part 12 are arranged perpendicularly to each other, the end of the first connecting part 20 is provided with a first sliding block 21, the first sliding block 21 is slidably connected to the first guide part 11, the end of the second connecting part 30 is provided with a second sliding block 31, the second sliding block 31 is slidably connected to the second guide part 12. Among them, the first guide part 11 can be a chute, or a guide rail, used for slidably cooperating with the first sliding block 21; similarly, the second guide part 12 can be a chute, or a guide rail, used for slidably cooperating with the second sliding block 31. The first connecting part 20 slides along the first guide part 11, and the second connecting part 30 slides along the second guide part 12, so as to adjust the position of the intersection between the first connecting part 20 and the second connecting part 30, and ensure that the shielding block 40 accurately covers the non-spraying area. When the number of the first connecting part 20 and the second connecting part 30 is both provided with multiple, the multiple first connecting parts 20 are all slidably connected to the same first guide part 11 through the respective first sliding blocks 21, the multiple second connecting parts 30 are all slidably connected to the same second guide part 12 through the respective second sliding blocks 31, and each pair of first connecting part 20 and second connecting part 30 matches one detachable shielding block 40, so as to realize the shielding of the control circuit board 60 with different non-spraying areas of complex shapes.

[0037] More specifically, the first connecting part 20 is perpendicular to the first guide part 11, and the second connecting part 30 is perpendicular to the second guide part 12. The simple structure design makes the whole system more stable and reliable during operation, reduces the failure rate caused by complex structure, and is convenient for the use of spraying workers.

[0038] In order to realize the quick disassembly of the shielding block 40 and the first connecting part 20 and the second connecting part 30, the end of the shielding block 40 is provided with a first connecting groove 41 and a second connecting groove 42 intersecting each other, the first connecting part 20 is detachably embedded in the first connecting groove 41, and the second connecting part 30 is detachably embedded in the second connecting groove 42, which makes the disassembly of the shielding block 40 not need special tools, and can avoid production accidents caused by missing special tools in the production process.

[0039] Embodiment 2

[0040] As Figure 2The difference between the embodiment and embodiment 1 is that the shielding tool for spraying further comprises a bottom plate 50 arranged in parallel with the base 10, the bottom plate 50 is used to support the circuit board 60 to be sprayed, and the base 10 and the bottom plate 50 are detachably connected. In actual production process, the circuit board 60 can be placed on the bottom plate 50, and then the base 10 is arranged above the circuit board 60, so that the base 10 and the bottom plate 50 are connected, and the shielding block 40 is located between the base 10 and the bottom plate 50. When spraying, the shielding block 40 shields the non-spraying area on the circuit board 60 from ink or paint.

[0041] Further, the bottom plate 50 is provided with a containing recess 51 arranged opposite to the shielding block 40, the circuit board 60 is embedded in the containing recess 51, and the inner wall surface of the containing recess 51 abuts against the outer edge of the circuit board 60. The containing recess 51 can limit the freedom of the circuit board 60, so as to prevent the circuit board 60 from being displaced relative to the bottom plate 50, which causes the shielding block 40 to fail to stably shield the non-spraying area on the circuit board 60, and helps to improve the spraying yield of the circuit board 60.

[0042] In the embodiment, in order to realize accurate butt joint of the base 10 and the bottom plate 50, the shielding tool for spraying further comprises a guide assembly, the guide assembly comprises a guide column 13 and a guide hole 52 which are slidably connected, the guide hole 52 is arranged on the bottom plate 50, and the guide column 13 is arranged on the base 10. The guide column 13 is inserted into the guide hole 52, so as to ensure accurate butt joint of the base 10 and the bottom plate 50. Especially when the base 10 and the bottom plate 50 need to be further fastened by screws, the auxiliary positioning of the guide hole 52 and the guide column 13 can improve the screw fastening efficiency of the installer.

[0043] Embodiment 3

[0044] The difference between the embodiment and embodiment 1 is that the base 10 is annular, the shielding block 40 is located on the inner side of the base 10, and the first guide part 11 and the second guide part 12 are located on the side edge of the shielding block 40. The annular base 10 is arranged around the spraying area / non-spraying area of the circuit board 60. In the embodiment, the base 10 is square annular, which helps to improve the structural utilization rate and reduce the production cost of the base 10.

[0045] In addition, the base 10 is provided with a plurality of baffles 14 arranged around the shielding block 40. The plurality of baffles 14 can also be integrated. The baffles 14 can prevent the sprayed ink or paint from overflowing outside the bottom plate 50, that is, the baffles 14 limit the spraying range of the sprayed ink or paint.

[0046] Embodiment 4

[0047] The difference between the embodiment and the embodiment 1 is that the first connecting component 20 is a cable, both ends of the first connecting component 20 are provided with the first sliding block 21, the first sliding block 21 is provided with the existing fastening structure for fastening the cable, after the cable is straightened, the fastening structure on the two first sliding blocks 21 is adjusted, so that the first connecting component 20 (namely the cable) is kept in a straight line. The fastening structure of the cable ensures the stability of the cable and prevents the shielding block 40 from moving due to loosening. And / or, the second connecting component 30 is a cable, both ends of the second connecting component 30 are provided with the second sliding block 31, the second sliding block 31 is provided with the existing fastening structure for fastening the cable, after the cable is straightened, the fastening structure on the two second sliding blocks 31 is adjusted, so that the second connecting component 30 (namely the cable) is kept in a straight line.

[0048] The diameter of the cable is relatively small, and the cable has little influence on the shielding of the ink or paint for the multi-directional spraying of the circuit board 60. The material of the cable can be metal or plastic, for example, a steel wire rope formed by stainless steel, and of course other materials.

[0049] In summary, the base 10 is provided with the first connecting component 20 and the second connecting component 30 movably connected thereto, the first connecting component 20 and the second connecting component 30 are inclined to each other or perpendicular to each other, the intersection of the two is provided with the shielding block 40, the end of the shielding block 40 is detachably connected to the first connecting component 20 and the second connecting component 30, adjusting the first connecting component 20 and the second connecting component 30 can adjust the relative position between the shielding block 40 and the base 10, so that the shielding block 40 can be flexibly shielded in the area required to be shielded by the circuit board 60 of different specifications, and the application range of the spraying shielding tool is wider.

[0050] The above is only an embodiment of the present application, and does not limit the patent range of the present application, any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A spray masking tool, characterized in that, The base, the first connecting part, the second connecting part and the shielding block are included. The first connecting part and the second connecting part are movably connected to the base, and the first connecting part and the second connecting part are arranged to be inclined to each other or perpendicular to each other. The shielding block is located at the intersection between the first connecting part and the second connecting part, and the shielding block is detachably connected to the first connecting part and the second connecting part.

2. The spray masking tooling of claim 1, wherein, The base is provided with a first guide part, and the end of the first connecting part is provided with a first sliding block which is slidably connected to the first guide part. And / or, the base is provided with a second guide part, and the end of the second connecting part is provided with a second sliding block which is slidably connected to the second guide part.

3. The spray masking tooling of claim 2, wherein, The first guide part and the second guide part are perpendicular to each other, the first connecting part is perpendicular to the first guide part, and the second connecting part is perpendicular to the second guide part.

4. The spray masking tooling of claim 1, wherein, The end of the shielding block is provided with a first connecting groove and a second connecting groove arranged at the intersection, the first connecting part is detachably embedded in the first connecting groove, and the second connecting part is detachably embedded in the second connecting groove.

5. The spray masking tooling of any one of claims 1 to 4, wherein, A bottom plate parallel to the base is further included, and the bottom plate is used to support the circuit board to be sprayed. The base and the bottom plate are detachably connected, and the shielding block is located between the base and the bottom plate.

6. The spray masking tooling of claim 5, wherein, The bottom plate is provided with a receiving cavity arranged opposite to the shielding block, and the circuit board is embedded in the receiving cavity.

7. The spray masking tooling of claim 5, wherein, A guide assembly is further included, and the guide assembly includes a guide column and a guide hole which are slidably connected. One of the guide column and the guide hole is arranged on the bottom plate, and the other is arranged on the base.

8. The spray masking tooling of any one of claims 1 to 4, wherein, The base is annular, and the shielding block is located on the inner side of the base.

9. The spray masking tooling of any one of claims 1 to 4, wherein, The base is provided with a plurality of baffles arranged around the shielding block.

10. The spray masking tooling of any one of claims 2 to 4, wherein, The first connecting part is a cable, and the two ends of the first connecting part are provided with the first sliding block. And / or, the second connecting part is the cable, and the two ends of the second connecting part are provided with the second sliding block.

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