CN219536408U - Air guide cushion plate - Google Patents
Air guide cushion plate Download PDFInfo
- Publication number
- CN219536408U CN219536408U CN202223198068.4U CN202223198068U CN219536408U CN 219536408 U CN219536408 U CN 219536408U CN 202223198068 U CN202223198068 U CN 202223198068U CN 219536408 U CN219536408 U CN 219536408U
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- air guide
- circuit board
- holes
- substrate
- guide pad
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Abstract
The utility model relates to the technical field of circuit board production, in particular to an air guide backing plate. The air guide cushion plate comprises a base plate and a plurality of supporting bars; the middle part of the substrate is provided with an air guide hole; at least two positioning holes are formed in the substrate, and the positioning holes are formed in the outer side of the air guide hole; the support bar is cylindrical; the support bars are parallel to each other and arranged in the air guide holes, and two ends of the support bars are respectively arranged on the base plate. The utility model solves the problems that the existing air guide cushion board has universality due to the arrangement of the ribs, the ribs on the air guide cushion board have a certain width, and when the small holes on the circuit board are just arranged on the ribs, the air guide of the small holes on the circuit board is easily blocked, so that the ink cannot be smoothly plugged into the holes of the circuit board.
Description
Technical Field
The utility model relates to the technical field of circuit board production, in particular to an air guide backing plate.
Background
When the traditional printed circuit board is subjected to the hole plugging process, the operation flow is that a screen plate is provided, and a plurality of meshes are penetrated on the screen plate; providing a circuit board, wherein the circuit board is provided with a plurality of holes, and is abutted under the screen plate, so that the holes of the circuit board are correspondingly arranged with the meshes; the air guide pad is provided with a plurality of air guide holes, the air guide pad is abutted to the lower portion of the circuit board, so that the air guide holes correspond to the holes of the circuit board, and then ink is injected into the holes of the circuit board through meshes on the screen plate. And because the printed circuit boards of different models are provided with different holes, the different printed circuit boards are required to be provided with special air guide base plates, so that the production cost is high.
The utility model with the publication number of CN202873194U discloses an air guide pad plate, which adopts the design that an air guide pad plate is in a grid-shaped structure formed by a plurality of ribs which are transversely and longitudinally arranged, so that the air guide pad plate has universality, the problem that a special air guide pad plate is required to be equipped in the production of the traditional circuit board is solved, but the air guide pad plate still has the defects that the ribs on the air guide pad plate have a certain width, and when small holes on the circuit board are just arranged on the ribs, the air guide of the small holes on the circuit board is easily blocked, so that ink cannot be smoothly plugged into the holes of the circuit board.
Therefore, there is a need to provide a solution to the above-mentioned problems.
Disclosure of Invention
The utility model provides an air guide backing plate, which aims to solve the problems that the existing air guide backing plate is provided with ribs to enable the air guide backing plate to have universality, the ribs on the air guide backing plate are provided with certain widths, and when small holes on a circuit board are just arranged on the ribs, air guide of the small holes on the circuit board is easily blocked, so that ink cannot be smoothly plugged into the holes of the circuit board.
In order to achieve the above purpose, the present utility model provides an air guide pad, comprising a base plate and a plurality of support bars; wherein:
the middle part of the substrate is provided with an air guide hole; at least two positioning holes are formed in the substrate, and the positioning holes are formed in the outer side of the air guide hole;
the support bar is cylindrical; the support bars are parallel to each other and arranged in the air guide holes, and two ends of the support bars are respectively arranged on the base plate.
More specifically, the two sides of the air guide hole of the substrate are respectively provided with a plurality of grooves formed by downwards opening, the grooves are communicated with the air guide hole, and the width of each groove is larger than that of each supporting bar; and two ends of the supporting bar are respectively arranged in the grooves.
More specifically, a plurality of support bars are arranged in an array; the distance between two adjacent support bars is 14mm-16mm.
More specifically, the width of the substrate is 4.5mm-5mm.
More specifically, the diameter of the cross section of the supporting strip is 4.5mm-5.5mm.
More specifically, the width of the groove is 5mm-6mm.
More specifically, the support bar is made of stainless steel material.
More specifically, the substrate is made of an FR-4 substrate with the copper-clad layer removed.
The technical effects of the air guide base plate are as follows:
1. the supporting bar is arranged in a cylindrical shape, when the circuit board is placed on the supporting bar, the contact area between the supporting bar and the circuit board is small, and even if the small hole on the circuit board is just placed above the supporting bar, the supporting bar can not block the small hole, so that the printing ink can well penetrate into each hole of the circuit board when the circuit board is subjected to hole plugging operation. By adopting the design, the air guide base plate has stronger universality and practicability than the existing air guide base plate.
2. The support bar is arranged in the air guide hole and is movably connected with the groove, so that the support bar and the circuit board can generate a trend of relative movement, the support bar is prevented from scraping the circuit board, and the quality of the produced circuit board is improved.
Drawings
FIG. 1 is a schematic view of an air guiding gasket according to the present utility model;
fig. 2 is a schematic structural view of a substrate in an air guiding pad according to the present utility model.
The marks in the figure:
1-a substrate; 2-supporting bars;
11-an air guide hole; 12-positioning holes; 13-groove.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the embodiments of the present utility model, it should be understood that the directions or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In order to more clearly illustrate the technical solution of the present utility model, a preferred embodiment is provided below. With particular reference to fig. 1-2. A guide air cushion plate comprises a base plate 1 and a plurality of support bars 2; wherein:
the middle part of the base plate 1 is provided with an air guide hole 11; at least two positioning holes 12 are formed in the substrate 1, and the positioning holes 12 are formed in the outer side of the air guide hole 11;
the support bar 2 is cylindrical; the support bars 2 are parallel to each other and are arranged in the air guide holes 11, and two ends of the support bars are respectively arranged on the base plate 1.
When the universal guide pad is used, a screen plate is firstly placed above a circuit board, and because a plurality of meshes are penetrated on the screen plate, the positions of the meshes on the screen plate are adjusted, so that the meshes correspond to the holes of the circuit board, ink can conveniently enter the holes of the circuit board through the meshes, then the guide pad is placed below the circuit board, and is matched with the positioning holes 12 on the guide pad through positioning pins, so that the position of the guide pad is fixed, and then the ink is injected into the holes of the circuit board through the meshes on the screen plate, and because gaps are formed among a plurality of support bars 2 in the guide pad, a channel is provided for the ink to flow downwards, and the ink is smoothly plugged into the holes of the circuit board.
In this embodiment, the supporting bar 2 is cylindrical, when the circuit board is placed on the supporting bar 2, the contact area between the supporting bar 2 and the circuit board is small, and even if the small hole on the circuit board is just placed above the supporting bar 2, the supporting bar 2 will not block the small hole, so that the ink can well penetrate into each hole of the circuit board when the circuit board is plugged. By adopting the design, the air guide base plate has stronger universality and practicability than the existing air guide base plate.
In this embodiment, the upper end surfaces of the supporting bars 2 are disposed on the same horizontal plane. The design ensures that the stress of the circuit board is uniform, and the quality of the ink plug holes of the circuit board is improved.
As a preferable scheme of the embodiment, the width of the substrate 1 is 4.5mm-5mm. Specifically, in this embodiment, the width of the substrate 1 is 5mm.
As a preferred solution of this embodiment, the diameter of the support bar 2 is 4.5mm-5.5mm. The diameter of the supporting bar 2 is not smaller than the width of the base plate 1. Specifically, in the present embodiment, the diameter of the supporting bar 2 is 5mm.
As a preferred version of this embodiment, the substrate 1 is made of FR-4 base material with the copper-clad layer removed. Specifically, the substrate 1 is pressed into a plate by sandwiching a prepreg between two plates, the copper foil on the outer layer is removed by etching process, and the air guide hole 11, the groove 13 and the positioning hole 12 are all formed by a milling machine.
As a preferred solution of this embodiment, the substrate 1 is provided with a plurality of grooves 13 formed by opening downwards on two sides of the air vent 11, the grooves 13 are communicated with the air vent 11, and the width of the grooves 13 is greater than the width of the support bars 2; the two ends of the supporting bar 2 are respectively arranged in the grooves 13. In the utility model, the support bar 2 is arranged in the air guide hole 11 and is movably connected with the groove 13, so that the support bar 2 and the circuit board can generate relative movement trend, the support bar 2 is prevented from scraping the circuit board, and the quality of the produced circuit board is improved.
Preferably, the width of the groove 13 is 5mm-6mm. Specifically, in this embodiment, the width of the groove 13 is 5.5mm.
As a preferable scheme of the embodiment, a plurality of support bars 2 are arranged in an array; the distance between two adjacent support bars 2 is 14mm-16mm. Specifically, in this embodiment, the distance between two adjacent support bars 2 is 15.5mm. It should be noted that, when the interval between the support bars 2 is too small, too many support bars 2 are needed, so that the material loss is too large, and the production cost is too high, and when the interval between the support bars 2 is too large, the support stability of the support bars 2 to the circuit board is not good.
As a preferred version of this embodiment, the support bar 2 is made of stainless steel material. The support bar 2 made of stainless steel material has smooth surface, can effectively avoid the air guide pad from scratching the surface of the circuit board in the use process, and can be recycled after the use, thereby reducing the production cost and improving the resource utilization rate.
The air guide plate solves the problems that the existing air guide plate is universal due to the fact that ribs are arranged, the ribs on the air guide plate are of certain width, when small holes on the circuit board are just arranged on the ribs, air guide of the small holes on the circuit board is easily blocked, and ink cannot be smoothly plugged into the holes of the circuit board.
The above-mentioned embodiments of the present utility model are not limited to the above-mentioned embodiments, but can be modified, equivalent, and improved within the spirit and principle of the present utility model, and the present utility model is also included in the scope of the present utility model.
Claims (8)
1. An air guide backing plate, characterized in that: comprises a base plate and a plurality of supporting bars; wherein:
the middle part of the substrate is provided with an air guide hole; at least two positioning holes are formed in the substrate, and the positioning holes are formed in the outer side of the air guide hole;
the support bar is cylindrical; the support bars are parallel to each other and arranged in the air guide holes, and two ends of the support bars are respectively arranged on the base plate.
2. An air guide pad according to claim 1, wherein: the base plate is provided with a plurality of grooves formed by downwards opening at two sides of the air guide hole respectively, the grooves are communicated with the air guide hole, and the width of each groove is larger than that of each supporting bar; and two ends of the supporting bar are respectively arranged in the grooves.
3. An air guide pad according to claim 1, wherein: the supporting strips are arranged in an array; the distance between two adjacent support bars is 14mm-16mm.
4. An air guide pad according to claim 1, wherein: the width of the substrate is 4.5mm-5mm.
5. An air guide pad according to claim 1, wherein: the diameter of the cross section of the supporting bar is 4.5mm-5.5mm.
6. An air guide pad according to claim 2, wherein: the width of the groove is 5mm-6mm.
7. An air guide pad according to claim 1, wherein: the supporting strips are made of stainless steel materials.
8. An air guide pad according to claim 1, wherein: the substrate is made of an FR-4 substrate with the copper-clad layer removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223198068.4U CN219536408U (en) | 2022-11-29 | 2022-11-29 | Air guide cushion plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223198068.4U CN219536408U (en) | 2022-11-29 | 2022-11-29 | Air guide cushion plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219536408U true CN219536408U (en) | 2023-08-15 |
Family
ID=87587923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223198068.4U Active CN219536408U (en) | 2022-11-29 | 2022-11-29 | Air guide cushion plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219536408U (en) |
-
2022
- 2022-11-29 CN CN202223198068.4U patent/CN219536408U/en active Active
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