Black shadow groove equipment suitable for circuit board hole metallization

Abstract

The utility model belongs to the technical field of printed circuit board manufacturing, and particularly relates to circuit board hole metallization black shadow groove equipment which comprises an operation table, a side plate is fixedly connected to one side of the operation table, a supporting plate is fixedly connected to the upper edge of the side plate, and a stirring part is fixedly connected to the upper surface of the supporting plate. The stirring part comprises a raw material box fixedly connected with the supporting plate, a driven column is arranged in the raw material box, a rotating assembly is fixedly connected to the outer wall of the driven column, and a layering assembly is fixedly connected to the lower surface of the rotating assembly. According to the metallization black shadow groove equipment suitable for the circuit board hole, a driven column drives a rotating disc to rotate through operation of a driving motor, meanwhile, stirring fan blades on the outer wall of the rotating disc vertically rotate through the interior of a rotating groove formed in the rotating disc, a sample and reaction liquid are fully stirred, and meanwhile a scraping plate is attached to the interior of a stirring barrel; the scraping rod moves upwards to stir the raw materials with different sizes and densities, so that the raw materials are uniformly mixed.

Description

Technical Field

[0001] This utility model relates to the field of printed circuit board manufacturing technology, and in particular to a device for metallizing black shadow grooves for circuit board holes. Background Technology

[0002] In the process of circuit board manufacturing, hole metallization is a crucial step that enables electrical connections between different layers of the circuit board. As an important part of hole metallization, the purpose of the shadow groove treatment is to form a uniform and highly conductive metallization pretreatment layer on the hole wall after drilling, providing a good foundation for subsequent processes such as electroplating.

[0003] However, existing black box equipment has many shortcomings. The chemical circulation system is imperfect and cannot effectively ensure the uniformity of chemical concentration, which can easily lead to unstable circuit board processing quality. The stirring device is simple and cannot fully adapt to chemicals of different viscosities and different process requirements, affecting the full contact between the chemicals and the circuit board hole walls. This makes the maintenance and operation management of the equipment inconvenient, thereby reducing production efficiency and increasing production costs. Utility Model Content

[0004] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.

[0005] Specifically, the technical problem to be solved by this utility model is to provide a black shadow tank device suitable for metallization of circuit board holes, so as to solve the technical problems of the current imperfect chemical circulation system, which cannot effectively guarantee the uniformity of chemical concentration, easily causing unstable circuit board processing quality, and the single stirring device.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A device for metallization of circuit board holes with a black shadow groove includes: a side plate fixedly connected to one side of the operating table; a support plate fixedly connected to the upper edge of the side plate; a stirring component fixedly connected to the upper surface of the support plate; a flow direction block penetrating through the support plate; a circulation box fixedly connected to the bottom of the flow direction block; a circulation component fixedly connected to the upper surface of the circulation box; and an opening and closing component fixedly connected to the inner cavity of the circulation box near the bottom.

[0008] The stirring component includes a raw material box fixedly connected to the support plate. An output hole is opened at the bottom of the inner cavity of the raw material box. The flow block is fixedly connected to the bottom of the output hole. A drive motor is fixedly connected to the upper end of the raw material box. The output shaft of the drive motor passes through the raw material box and is connected to a driven column. A rotating assembly is fixedly connected to the outer wall of the driven column. The rotating assembly includes a rotating disk fixedly connected to the driven column. A layering assembly is fixedly connected to the lower surface of the rotating disk. The layering assembly includes a driven rod fixedly connected to the rotating disk. A lifting component is slidably connected to the bottom of the driven rod. Multiple scraping rods are fixedly connected to the outer wall of the lifting component. A scraping plate is rotatably connected to the end of the scraping rod.

[0009] As an improved technical solution, the outer wall of the rotating disk is provided with multiple rotating cavities, and a rotating component is rotatably connected inside the rotating cavity. A stirring fan blade is fixedly connected to the other end of the rotating component.

[0010] As an improved technical solution, a connecting ring is fixedly connected near the upper end of the driven rod. A first rotating groove is formed on the four sides of the outer wall of the connecting ring. A connecting rod is rotatably connected inside the first rotating groove. A sliding groove is formed inside the scraping rod. A sliding rod is fixedly connected inside the sliding groove. A sliding block is slidably connected to the outer wall of the sliding rod. The other end of the connecting rod is rotatably connected to the top of the sliding block.

[0011] As an improved technical solution, the scraper plate has a second rotating groove at one end near the scraper rod, a rotating rod is fixedly connected inside the second rotating groove, and the scraper rod is rotatably connected to the outer wall of the rotating rod.

[0012] As an improved technical solution, an elastic element is fixedly connected to the bottom of the connecting ring near the center, and the lifting element is fixedly connected to the other end of the elastic element. The elastic element is located on the outer wall of the driven rod.

[0013] As an improved technical solution, the circulation component includes a suction pump fixedly connected to the circulation box. Filter assemblies are fixedly connected to both sides of the suction pump. The filter assembly includes a filter cylinder that snaps into the suction pump. A primary filter screen is fixedly connected to one side of the filter cylinder, and a secondary filter screen is fixedly connected to the other side of the filter cylinder. A flexible hose is fixedly connected to the side of the filter cylinder near the primary filter screen. A processing groove is provided on the upper surface of the operating table. Flow grooves are provided near both sides of the processing groove, and the other end of the flexible hose extends into the flow groove.

[0014] As an improved technical solution, the filter cylinder is rotatably connected to the rotating roller inside, and multiple guide vanes are fixedly connected to the outer wall of the rotating roller. A collection cylinder is fixedly connected to the bottom of the filter cylinder near the center, and the collection cylinder is located below the rotating roller.

[0015] As an improved technical solution, the opening and closing assembly includes a fixed ring fixedly connected to the circulation box, a horizontal bar fixedly connected near the center of the fixed ring, two grooves opened on both sides of the horizontal bar, a transmission rod rotatably connected inside the groove, a spring fixedly connected near both ends of the transmission rod, the other end of the spring fixedly connected to the side of the groove, and a baffle fixedly connected to the bottom of the transmission rod.

[0016] After adopting the above technical solution, the beneficial effects of this utility model are:

[0017] 1. This utility model uses a motor to drive a driven column to rotate, which in turn drives a rotating disk to rotate. Simultaneously, the stirring blades on the outer wall of the rotating disk rotate vertically through a rotating groove inside the disk, ensuring thorough mixing of the sample and the reaction liquid. As the screw continues to move downwards, the scraper plate adheres to the inside of the mixing tank, causing the scraper rod to move upwards. This mixes raw materials of different sizes and densities, ensuring uniform mixing. When the scraper rod reaches the bottom, the scraper plate and scraper rod are at a horizontal level. This rotation also prevents small particles of raw material from accumulating at the bottom, further enhancing the mixing effect.

[0018] 2. In this utility model, the stirred raw material flows into the circulation box through the flow block, and then flows into the processing tank through the circulation box. In order to keep the concentration and temperature of the raw material in the processing tank consistent, a suction pump is used to rotate and suck the raw material in the processing tank into the circulation box through a hose. Then, the impurities are cleaned by the secondary filter screens on both sides of the suction pump, and the impurities inside the raw material are collected into the collection cylinder by the guide vanes above the rotating roller.

[0019] 3. In this utility model, the bottom of the circulation tank is sealed by a baffle. After the raw material inside the processing tank is sucked into the circulation tank by the suction pump, the increased pressure will cause the baffle to move downward, so that the raw material can flow downward into the processing tank, thus avoiding the waste of raw material due to excessive raw material in the processing tank. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0021] Figure 1 This is a schematic diagram of the overall structure of the device for metallizing black shadow grooves for circuit board holes, which is applicable to this utility model.

[0022] Figure 2This is a schematic diagram of the frame structure of the device for metallizing the holes of circuit boards according to this utility model.

[0023] Figure 3 This is a schematic diagram of the stirring component structure of the black shadow tank equipment for metallized circuit board holes, which is applicable to the present invention.

[0024] Figure 4 This is a schematic diagram of the rotating component structure of the device for metallizing black shadow grooves in circuit board holes, which is applicable to the present invention.

[0025] Figure 5 This is a schematic diagram of the layered component structure of the device for metallizing black shadow grooves in circuit board holes, which is applicable to the present invention.

[0026] Figure 6 This is a schematic diagram of the circulating component structure of the device for metallizing black shadow grooves in circuit board holes, which is applicable to the present invention.

[0027] Figure 7 This is a schematic diagram of the filter assembly structure of the metallized black shadow groove equipment for circuit board holes, which is applicable to the present invention.

[0028] Figure 8 This is a schematic diagram of the opening and closing component structure of the device for metallizing the black shadow groove of the circuit board hole, which is applicable to the present invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Operating table; 11. Processing tank; 12. Side plate; 13. Support plate; 14. Flow channel; 15. Flow block; 16. Circulation box;

[0031] 2. Stirring component; 21. Rotating assembly; 22. Layering assembly; 23. Output port; 24. Driven column; 25. Raw material bin; 26. Drive motor;

[0032] 211. Rotating disc; 212. Rotating cavity; 213. Rotating component; 214. Stirring blade;

[0033] 220. Driven rod; 221. Connecting ring; 222. First rotating groove; 223. Sliding block; 224. Scraper rod; 2241. Sliding groove; 2242. Slide rod; 225. Lifting component; 226. Scraper plate; 2261. Second rotating groove; 2262. Rotating rod; 227. Connecting rod; 228. Elastic component;

[0034] 3. Circulation components; 31. Suction pump; 32. Hoses; 33. Filter assembly;

[0035] 331. Filter cartridge; 332. Primary filter screen; 333. Secondary filter screen; 334. Guide vanes; 335. Rotating roller; 336. Collection cylinder;

[0036] 4. Opening and closing assembly; 41. Fixing ring; 42. Crossbar; 43. Groove; 44. Transmission rod; 45. Spring; 46. Baffle. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0039] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0040] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0041] like Figure 2 , Figure 3 and Figure 4 As shown in the figure, this embodiment provides a device for metallization of circuit board holes with black shadow grooves. This device for metallization of circuit board holes with black shadow grooves includes an operating table 1. A side plate 12 is fixedly connected to one side of the operating table 1. A support plate 13 is fixedly connected to the upper edge of the side plate 12. A stirring component 2 is fixedly connected to the upper surface of the support plate 13. A flow direction block 15 is connected through the inside of the support plate 13. A circulation box 16 is fixedly connected to the bottom of the flow direction block 15. A circulation component 3 is fixedly connected to the upper surface of the circulation box 16. An opening and closing component 4 is fixedly connected to the inner cavity of the circulation box 16 near the bottom.

[0042] The stirring component 2 includes a raw material box 25 fixedly connected to the support plate 13. An output hole 23 is provided at the bottom of the inner cavity of the raw material box 25. A flow direction block 15 is fixedly connected to the bottom of the output hole 23. A drive motor 26 is fixedly connected to the upper end of the raw material box 25. The output shaft of the drive motor 26 passes through the raw material box 25 and is connected to a driven column 24. A rotating assembly 21 is fixedly connected to the outer wall of the driven column 24. The rotating assembly 21 includes a rotating disk 211 fixedly connected to the driven column 24. A layering assembly 22 is fixedly connected to the lower surface of the rotating disk 211. The layering assembly 22 includes components fixedly connected to the rotating disk 211. A driven rod 220 is fixedly connected, and a lifting component 225 is slidably connected to the bottom of the driven rod 220. Multiple scraping rods 224 are fixedly connected to the outer wall of the lifting component 225. Scraping plates 226 are rotatably connected to the ends of the scraping rods 224. The scraping plates 226 are in contact with the inside of the raw material box 25, so that the scraping rods 224 move upward to stir raw materials of different densities or sizes. At the same time, when the scraping rods 224 reach the bottom, the scraping plates 226 and the scraping rods 224 are on the horizontal plane. While rotating, it also prevents small particles of raw material from accumulating at the bottom, further increasing the stirring effect.

[0043] The outer wall of the rotating disk 211 has multiple rotating cavities 212. A rotating component 213 is rotatably connected inside the rotating cavity 212. A stirring blade 214 is fixedly connected to the other end of the rotating component 213. The sample and the reaction liquid are fully stirred by rotating vertically through the rotating groove inside the rotating disk 211.

[0044] A connecting ring 221 is fixedly connected to the driven rod 220 near its upper end. A first rotating groove 222 is provided on the four sides of the outer wall of the connecting ring 221. A connecting rod 227 is rotatably connected inside the first rotating groove 222. A sliding groove 2241 is provided inside the scraping rod 224. A sliding rod 2242 is fixedly connected inside the sliding groove 2241. A sliding block 223 is slidably connected to the outer wall of the sliding rod 2242. The other end of the connecting rod 227 is rotatably connected to the top of the sliding block 223. The height between the connecting ring 221 and the scraping rod 224 is adjusted by using the connecting rod 227.

[0045] A second rotating groove 2261 is provided at one end of the scraper blade 226 near the scraper rod 224. A rotating rod 2262 is fixedly connected inside the second rotating groove 2261. The scraper rod 224 is rotatably connected to the outer wall of the rotating rod 2262. The scraper blade 226 is rotated at the end of the scraper rod 224 by rotating the rotating rod 2262.

[0046] An elastic element 228 is fixedly connected to the bottom of the connecting ring 221 near the center. A lifting element 225 is fixedly connected to the other end of the elastic element 228. The elastic element 228 is located on the outer wall of the driven rod 220. The elastic element 228 is used to keep the lifting element 225 and the connecting ring 221 at the same height when not subjected to external force.

[0047] like Figure 2 , Figure 6 and Figure 7 As shown, the circulation component 3 includes a suction pump 31 fixedly connected to the circulation tank 16. Filter components 33 are fixedly connected to both sides of the suction pump 31. The filter components 33 include filter cylinders 331 that are snapped into the suction pump 31. A primary filter screen 332 is fixedly connected to one side of the filter cylinder 331, and a secondary filter screen 333 is fixedly connected to the other side of the filter cylinder 331. A hose 32 is fixedly connected to the side of the filter cylinder 331 near the primary filter screen 332. A processing groove 11 is provided on the upper surface of the operating table 1. Flow grooves 14 are provided near both sides of the processing groove 11. The other end of the hose 32 extends into the flow groove 14. The stirred raw material flows into the circulation tank 16 through the flow block 15, and then flows into the processing groove 11 through the circulation tank 16. To maintain a consistent concentration and temperature of the raw material inside the processing groove 11, the suction pump 31 is rotated to draw the raw material from the processing groove 11 into the circulation tank 16 through the hose 32. Then, the secondary filters on both sides of the suction pump 31 are used to clean the impurities.

[0048] A rotating roller 335 is rotatably connected inside the filter cylinder 331. Multiple guide vanes 334 are fixedly connected to the outer wall of the rotating roller 335. A collection cylinder 336 is fixedly connected to the bottom of the filter cylinder 331 near the center. The collection cylinder 336 is located below the rotating roller 335. Impurities inside the raw material are collected into the collection cylinder 336 through the guide vanes 334 above the rotating roller 335.

[0049] like Figure 8 As shown, the opening and closing assembly 4 includes a fixed ring 41 fixedly connected to the circulation box 16. A horizontal bar 42 is fixedly connected to the fixed ring 41 near the center. Two grooves 43 are opened on both sides of the horizontal bar 42. A transmission rod 44 is rotatably connected inside the grooves 43. A spring 45 is fixedly connected to both ends of the transmission rod 44. The other end of the spring 45 is fixedly connected to the side of the groove 43. A baffle 46 is fixedly connected to the bottom of the transmission rod 44. The bottom of the circulation box 16 is sealed by the baffle 46. After the raw material inside the processing tank 11 is sucked into the circulation box 16 by the suction pump 31, the increased pressure will cause the baffle 46 to move downward, so that the raw material can flow downward into the processing tank 11, avoiding excessive raw material in the processing tank 11 and thus avoiding waste.

[0050] In use, the motor drives the driven column 24 to rotate, which in turn drives the rotating disk 211 to rotate. Simultaneously, the stirring blades 214 on the outer wall of the rotating disk 211 rotate vertically through the rotating grooves inside the disk 211, ensuring thorough mixing of the sample and reaction liquid. As the screw thread continues to move downwards, the scraper 226 adheres to the inside of the mixing tank, causing the scraper rod 224 to move upwards, mixing materials of different sizes and densities. When the scraper rod 224 reaches the bottom, the scraper 226 and scraper rod 224 are at a horizontal level, preventing the accumulation of small particles at the bottom. The mixed material flows through the flow block 15 into the circulation tank 16. The raw material flows from the circulation tank 16 into the processing tank 11. To maintain a consistent concentration and temperature of the raw material inside the processing tank 11, a suction pump 31 is used to rotate and draw the raw material from the processing tank 11 into the circulation tank 16 through a hose 32. Impurities are then removed by the secondary filters on both sides of the suction pump 31. The impurities inside the raw material are collected into the collection cylinder 336 by the guide vanes 334 above the rotating roller 335. Finally, the bottom of the circulation tank 16 is sealed by a baffle 46. After the suction pump 31 draws the raw material from the processing tank 11 into the circulation tank 16, the increased pressure causes the baffle 46 to move downward, allowing the raw material to flow downward into the processing tank 11.

[0051] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. An apparatus suitable for shadow trenching of holes in a circuit board, comprising a worktable (1), characterized in that: The operating platform (1) is fixedly connected with a side plate (12) near one side, a supporting plate (13) is fixedly connected with the side plate (12), a stirring part (2) is fixedly connected with the upper surface of the supporting plate (13), a flow direction block (15) is connected through the inside of the supporting plate (13), a circulating tank (16) is fixedly connected with the bottom of the flow direction block (15), a circulating part (3) is fixedly connected with the upper surface of the circulating tank (16), and an opening and closing assembly (4) is fixedly connected with the bottom of the inside of the circulating tank (16). The stirring part (2) comprises a raw material tank (25) fixedly connected with the supporting plate (13), an output hole (23) is formed in the bottom of the inside of the raw material tank (25), the flow direction block (15) is fixedly connected with the bottom of the output hole (23), a driving motor (26) is fixedly connected with the upper end of the raw material tank (25), a driven column (24) is connected with the output shaft of the driving motor (26) and penetrates through the raw material tank (25), a rotating assembly (21) is fixedly connected with the outer wall of the driven column (24), the rotating assembly (21) comprises a rotating disc (211) fixedly connected with the driven column (24), a layering assembly (22) is fixedly connected with the lower surface of the rotating disc (211), the layering assembly (22) comprises a driven rod (220) fixedly connected with the rotating disc (211), a lifting piece (225) is slidingly connected with the bottom of the driven rod (220), a plurality of scraping rods (224) are fixedly connected with the outer wall of the lifting piece (225), and a scraping plate (226) is rotatably connected with the end of the scraping rod (224).

2. The apparatus for black shadowing of a circuit board hole metallization according to claim 1, characterized in that: A plurality of rotating cavities (212) are formed in the outer wall of the rotating disc (211), a rotating piece (213) is rotatably connected with the inside of the rotating cavity (212), and a stirring fan blade (214) is fixedly connected with the other end of the rotating piece (213).

3. The apparatus for shadow trenching of a circuit board hole metallization according to claim 2, wherein: A connecting ring (221) is fixedly connected with the upper end of the driven rod (220), a first rotating groove (222) is formed in the outer wall of the connecting ring (221), a connecting rod (227) is rotatably connected with the inside of the first rotating groove (222), a sliding groove (2241) is formed in the inside of the scraping rod (224), a sliding rod (2242) is fixedly connected with the inside of the sliding groove (2241), a sliding block (223) is slidingly connected with the outer wall of the sliding rod (2242), and the other end of the connecting rod (227) is rotatably connected with the top end of the sliding block (223).

4. The apparatus for shadow trenching of a circuit board hole metallization according to claim 3, wherein: A second rotating groove (2261) is formed in the end of the scraping rod (224) of the scraping plate (226), a rotating rod (2262) is fixedly connected with the inside of the second rotating groove (2261), and the rotating rod (2262) is rotatably connected with the scraping rod (224).

5. The apparatus for shadow trenching of a circuit board hole metallization according to claim 4, wherein: An elastic piece (228) is fixedly connected with the bottom of the connecting ring (221) and near the center, the other end of the elastic piece (228) is fixedly connected with the lifting piece (225), and the elastic piece (228) is arranged on the outer wall of the driven rod (220).

6. The apparatus for black shadowing of a circuit board hole metallization according to claim 5, characterized in that: Said circulating component (3) includes the suction pump (31) fixedly connected with the circulating tank (16), the suction pump (31) is fixedly connected with the filter assembly (33) near both sides, the filter assembly (33) includes the filter cartridge (331) clamped with the suction pump (31), one side of the filter cartridge (331) is fixedly connected with the primary filter screen (332), the other side of the filter cartridge (331) is fixedly connected with the secondary filter screen (333), the filter cartridge (331) is fixedly connected with the hose (32) near one side of the primary filter screen (332), the upper surface of the operation table (1) is provided with the machining groove (11), the machining groove (11) is provided with the flow groove (14) near both sides, the other end of the hose (32) extends into the flow groove (14) inside.

7. The apparatus for shadow trenching of a circuit board hole metallization according to claim 6, wherein: Rotatably connected with the filter cartridge (331) inside is a rotating roller (335), the rotating roller (335) is fixedly connected with a plurality of guide vanes (334) on the outer wall, the filter cartridge (331) is fixedly connected with a collection cylinder (336) at the bottom near the center, and the collection cylinder (336) is below the rotating roller (335).

8. The apparatus for shadow trenching of a circuit board hole metallization according to claim 7, wherein: The opening and closing assembly (4) includes a fixed ring (41) fixedly connected with the circulating tank (16), the fixed ring (41) is fixedly connected with a horizontal bar (42) near the center, two recesses (43) are formed on both sides of the horizontal bar (42), a transmission rod (44) is rotatably connected in the recess (43), the transmission rod (44) is fixedly connected with a spring (45) near both ends, the other end of the spring (45) is fixedly connected with the side of the recess (43), and the bottom of the transmission rod (44) is fixedly connected with a baffle (46).

Images