Tool for browning small-size PCB core board and browning equipment

Abstract

The utility model discloses a tool for browning a small-size PCB core board and browning equipment, the tool comprises a substrate, a containing groove capable of placing the PCB board is arranged, the groove bottom of the containing groove is provided with first through holes for a browning liquid to pass through, and the first through holes are uniformly distributed at the groove bottom of the containing groove; the cover plate covers the side, provided with the opening, of the containing groove, the cover plate is detachably connected with the base plate, the cover plate is provided with a windowing area, the windowing area corresponds to the containing groove in position, the windowing area comprises a second through hole, and the browning liquid can pass through the second through hole. The browning equipment applies the tool.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of PCB production, especially to a tool for brown oxidation of small-size PCB core plate and brown oxidation equipment. BACKGROUND

[0002] PCB board brown oxidation is an important link in the manufacturing process of PCB (printed circuit board), and the main purpose is to enhance the bonding force between the original plate and PP (prepreg, semi-cured sheet), so as to ensure the quality and reliability of the circuit board.

[0003] Brown oxidation can increase the specific surface of copper foil, thereby increasing the contact area with resin, which is beneficial to the full diffusion of resin and the formation of greater bonding force. This helps to prevent the circuit board from delamination or board explosion under high temperature and high pressure environment. And during the brown oxidation process, the contaminants such as grease and impurities on the surface of the original plate can be removed to ensure the cleanliness of the plate surface and provide a good foundation for the subsequent pressing process. After the PCB board is browned, a uniform brown organic metal film is formed on the copper surface, which can prevent the reaction between the amino group of copper and semi-cured sheet during high-temperature pressing, thereby protecting the circuit board from damage.

[0004] However, the conveying line of the existing brown oxidation equipment cannot stably convey small-size PCB core plates, and a variety of tools are needed to fix the small-size PCB core plates on the conveying line for brown oxidation treatment. However, there is still a risk of PCB core plate falling into the brown oxidation tank during the brown oxidation process, resulting in high production loss. UTILITY MODEL CONTENTS

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a tool for brown oxidation of small-size PCB core plates, which can prevent small-size PCB from falling during conveying and brown oxidation, effectively reducing production loss. In addition, the application also provides a brown oxidation equipment using the tool, which helps to improve the brown oxidation efficiency.

[0006] According to the tool for brown oxidation of small-size PCB core plates provided by the utility model, the tool comprises:

[0007] The base plate is provided with a containing groove for placing the PCB board, and the groove bottom of the containing groove is provided with a first through hole through which the brown oxidation liquid can pass, and the first through holes are uniformly distributed on the groove bottom of the containing groove;

[0008] The cover plate is covered on the side of the containing groove with an opening, and the cover plate is detachably connected with the base plate. The cover plate is provided with a windowed area, and the windowed area is provided in position correspondence with the containing groove. The windowed area comprises a second through hole through which the brown oxidation liquid can pass.

[0009] The utility model discloses a kind of toolings for small size PCB core board brown, at least have following beneficial effects: the tooling of the application is designed specially for the brown treatment of small size PCB core board, mainly includes two parts of substrate and cover plate. Through the substrate and cover plate structure of careful design, and the design of optimized through hole and gap, it is ensured that brown liquid can be uniformly, effectively act on PCB board, and also cannot appear the situation of falling in conveying process, effectively reduce loss.

[0010] According to the utility model embodiment, the substrate is provided with a plurality of accommodating grooves, and the accommodating grooves are distributed in a matrix manner.

[0011] According to the utility model embodiment, the first through hole is a strip-shaped opening, and a plurality of first through holes are arranged at intervals along the width direction of the accommodating groove.

[0012] According to the utility model embodiment, the groove bottom of the accommodating groove is provided with an opening, a supporting strip is arranged in the opening, a plurality of supporting strips are arranged at intervals along the width direction of the accommodating groove, and the side walls of adjacent two supporting strips and the inner walls of the accommodating groove jointly form the first through hole.

[0013] According to the utility model embodiment, the cover plate is provided with a plurality of windowed areas, and the windowed areas are distributed in a matrix manner.

[0014] According to the utility model embodiment, the inner walls of the accommodating groove and the side walls of the PCB leave a gap, and the width of the gap is not less than 0.2 mm.

[0015] According to the utility model embodiment, the second through hole is a strip-shaped opening, and a plurality of second through holes are arranged at intervals along the width direction of the accommodating groove.

[0016] According to the utility model embodiment, the first through hole and the second through hole are arranged in a staggered manner in the projection direction perpendicular to the substrate.

[0017] According to the utility model embodiment, the substrate is provided with a positioning block, the cover plate is provided with a positioning hole, and the positioning block and the positioning hole are correspondingly matched and inserted.

[0018] According to the utility model embodiment, a brown equipment applies the tooling for small size PCB core board brown.

[0019] According to the utility model embodiment, the brown equipment has at least the following beneficial effects:

[0020] The tooling of the present application is specially designed for the brown processing of small-size PCB core board, mainly including two parts of base plate and cover plate. Through the carefully designed base plate and cover plate structure, and the optimized through hole and gap design, it is ensured that the brown liquid can uniformly and effectively act on the PCB board, and there will be no falling on the conveying device of the brown equipment, effectively reducing the loss.

[0021] The additional aspects and advantages of the present application will be partially given in the following description, and some will become apparent from the following description, or be understood by the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0022] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

[0023] Fig. 1 A structure sectional view of the tooling for small-size PCB core board brown processing of the present application embodiment;

[0024] Fig. 2 A structure schematic view of the base plate of the present application embodiment.

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] PCB board 1;

[0027] Base plate 100; accommodating groove 110; first through hole 111; positioning block 120; support strip 130;

[0028] Cover plate 200; windowed area 210; second through hole 211; positioning hole 220. DETAILED DESCRIPTION

[0029] The embodiments of the present application will be described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as limiting the present application.

[0030] In the description of the present application, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and cannot be understood as limiting the indicated device or element to have a specific orientation, to be constructed and operated in a specific orientation, therefore, cannot be understood as limiting the present application.

[0031] In the description of the utility model, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, more than and the like are understood as not including the number, above, below, within and the like are understood as including the number. If the first, second are described, it is only used for distinguishing technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0032] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing and connecting should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0033] Referring to Figs. 1-2 The utility model embodiment provides a kind of for small size PCB core board brown, including substrate 100, it is provided with the containing groove 110 of the PCB board that can be placed, the first through-hole 111 that can be passed by brown liquid is provided at the groove bottom of containing groove 110, first through-hole 111 is uniformly distributed the groove bottom of containing groove 110;Cover plate 200, covering the side with opening of containing groove 110, cover plate 200 is detachably connected with substrate 100, cover plate 200 is provided with window area 210, window area 210 is set position corresponding with containing groove 110, window area 210 includes second through-hole 211, second through-hole 211 can be passed by brown liquid.

[0034] The tool of the application is designed for the brown processing of small size PCB core board, mainly including two parts of substrate 100 and cover plate 200. Through the structure of carefully designed substrate 100 and cover plate 200, and the optimization of through hole and gap design, it is ensured that the brown liquid can act on the PCB board uniformly and effectively, and there will be no falling during conveying, effectively reducing the loss.

[0035] According to some embodiments of the application, the substrate 100 is provided with a plurality of containing grooves 110, and the containing grooves 110 are distributed in a matrix form, so that a plurality of PCB boards can be simultaneously subjected to brown processing, effectively improving the production efficiency.

[0036] Specifically, the groove bottom of containing groove 110 is uniformly distributed with a plurality of first through holes 111, and these through holes allow the brown liquid to pass through, so that the PCB board can uniformly contact the brown liquid. The first through hole 111 can be a strip-shaped opening, which is arranged at intervals along the width direction of the containing groove 110 to optimize the flow of the brown liquid. In some embodiments, the groove bottom of the containing groove 110 is provided with an opening, and a support strip 130 is installed in the opening. These support strips 130 form the first through hole 111 together with the inner wall of the containing groove 110, while providing additional structural support.

[0037] According to some embodiments of the present application, the cover plate 200 covers the opening side of the containing groove 110 and is provided with a windowed area 210 corresponding to the position of the containing groove 110. The windowed area 210 includes a second through hole 211, which also allows the brown liquid to pass through. Further, the windowed area 210 is also distributed in a matrix manner, matching the containing groove 110 on the substrate 100.

[0038] Further, a gap of at least 0.2mm is left between the inner wall of the containing groove 110 and the side wall of the PCB plate to ensure that the brown liquid can flow freely while avoiding excessive pressure on the PCB plate.

[0039] Further, the second through hole 211 can be a strip-shaped opening, which is arranged in the width direction of the containing groove 110 and corresponds to the first through hole 111, but is arranged in a staggered manner in projection to further optimize the distribution and flow of the brown liquid.

[0040] Further, the cover plate 200 and the substrate 100 are detachably connected, which facilitates installation and disassembly. Specifically, the substrate 100 is provided with a positioning block 120, and the cover plate 200 is provided with a corresponding positioning hole 220. Through the insertion of the positioning block 120 and the positioning hole 220, the accurate alignment between the cover plate 200 and the substrate 100 is ensured.

[0041] Among them, the substrate 100 and the cover plate 200 are both made of corrosion-resistant plastic plates to adapt to the chemical composition in the brown liquid and ensure the stability and reliability of long-term use.

[0042] In addition, the present application also provides a brown equipment (not shown in the figure) applied with the above-mentioned tool for small-size PCB core plate brown, which can efficiently and uniformly brown the small-size PCB core plate.

[0043] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "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 application. In the description of the present application, the exemplary description of the above terms does 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.

[0044] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A tooling for brownstaining small size PCB core panels, characterized in that, The application relates to a PCB browning device. The base plate is provided with a plurality of the accommodating grooves which are distributed in a matrix mode. The first through hole is a strip-shaped opening, and a plurality of the first through holes are arranged at intervals along the width direction of the accommodating groove.

2. The jig for brown staining of a small-sized PCB core board according to claim 1, wherein The inner wall of the accommodating groove and the side wall of the PCB are left with a gap, and the width of the gap is not less than 0.2 mm.

3. The jig for brown staining of small-sized PCB core board according to claim 2, wherein The second through hole is a strip-shaped opening, and a plurality of the second through holes are arranged at intervals along the width direction of the accommodating groove.

4. The tooling for brown staining small size PCB core boards according to claim 3, characterized in that, The first through hole and the second through hole are arranged in a staggered mode in the direction perpendicular to the base plate.

5. The tooling for brown staining small size PCB core boards according to claim 1, wherein, The base plate is provided with a positioning block, and the cover plate is provided with a positioning hole, the positioning block and the positioning hole are correspondingly matched and inserted.

6. The tooling for brown staining small size PCB core boards according to claim 1, wherein, The application further relates to a tool for browning a small-size PCB core plate.

7. The tooling for brown staining small size PCB core boards according to claim 1, wherein, ​ 8. The tooling for brown staining small size PCB core boards according to claim 7, wherein, ​ 9. The tooling for brown staining small size PCB core boards according to claim 1, wherein, ​ 10. A browning apparatus, characterized by, ​

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