Equipment for processing outer layer of repeatedly-pressed second-order blind hole plate

Abstract

The invention relates to the technical field of blind hole plate surface treatment, in particular to multiple-press-fit second-order blind hole plate outer layer treatment equipment which comprises a cleaning box and a drying box, and a cleaning assembly is arranged in the cleaning box. Through the arrangement of the adjusting mechanism, during use, a switch of a first motor is turned on, then a lead screw drives a moving plate to move, a second motor can move back and forth along with a moving base, and a blind hole plate can be conveniently moved into the cleaning box and the drying box to be machined and used, and meanwhile, a switch of the second motor is turned on; a switch of an electric push rod is turned on, so that a lifting plate can move up and down for adjustment, depth adjustment of the mounting mechanism is facilitated, and up and down movement of the mounting mechanism is also facilitated; and therefore, the cleaning mechanism can spray different positions of the mounting mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of surface treatment of blind via boards, and particularly to an outer layer treatment device for a second-order blind via board with multiple pressings. Background Art

[0002] At present, with the application of electronic products such as mobile phones, digital cameras, laptop computers, car navigation systems, and IC packages, coupled with the enhanced functions of electronic products and the increasing miniaturization and high integration of electronic products, the requirements for circuit boards are also constantly increasing. In the existing circuit board production technology field, multilayer circuit boards usually have multiple conductive blind via structures, and through these conductive blind via structures, the multiple layers of circuits in the multilayer circuit board can be electrically connected between adjacent layers. Since a high-density circuit board contains multiple layers of circuit boards, good electrical connectivity between each layer of circuit boards is one of the key technologies for HID circuit boards.

[0003] At present, a printed circuit board, also known as a printed wiring board, is a provider of electrical connections for electronic components. According to the number of layers of the circuit board, it can be divided into single-sided boards, double-sided boards, four-layer boards, six-layer boards, and other multilayer circuit boards. In the production of printed circuit boards, surface treatment of the copper surface is required. Since the copper surface is easily oxidized in a general environment, resulting in poor solderability (inability to solder), protection will be carried out on the copper surface that needs to be tinned. The protection methods include hot air solder leveling, immersion gold, immersion silver, immersion tin, and organic solder mask, etc. No matter which protection method is adopted, before treatment, the substrate copper surface needs to be cleaned of rust by pickling, alkali washing, and water washing.

[0004] However, when the existing blind via boards are cleaned, the substrates are all cleaned by soaking or spraying methods. The cleaning efficiency is low, and there will be scenarios where oxides in some areas are not completely removed, resulting in de-soldering or false soldering when applying the subsequent protective layer, affecting the yield of printed circuit boards. Most traditional treatment methods use a single cleaning process, which not only has low treatment efficiency but may also cause defects such as uneven surface treatment or residual cleaning agent. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide an outer layer treatment device for a second-order blind via board with multiple pressings to solve the technical problems that when the existing blind via boards are cleaned, the substrates are all cleaned by soaking or spraying methods, the cleaning efficiency is low, and there will be scenarios where oxides in some areas are not completely removed, resulting in de-soldering or false soldering when applying the subsequent protective layer, affecting the yield of printed circuit boards. Most traditional treatment methods use a single cleaning process, which not only has low treatment efficiency but may also cause defects such as uneven surface treatment or residual cleaning agent.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions: An outer layer processing device for a multi - press second - order blind via board, comprising: a cleaning tank and a drying tank. A cleaning component is arranged inside the cleaning tank, a drying component is arranged inside the drying tank, a circulation component is arranged at the bottom of the cleaning tank and the drying tank, a mounting plate is fixedly installed on the rear outer wall of the cleaning tank and the drying tank, an adjusting mechanism is arranged on the top of the mounting plate, and a mounting mechanism is arranged at the bottom of the adjusting mechanism; The adjusting mechanism includes a mounting frame, a first motor, a lead screw, a top plate, an electric push rod, a second motor, a rotating shaft, a moving plate, a moving seat, a lifting plate, a third motor and a driving shaft. The mounting frame is fixedly installed on the top of the mounting plate. The first motor is fixedly installed on one outer wall of the mounting frame. The output end of the first motor is fixedly connected to the lead screw. The moving plate is movably sleeved outside the lead screw and is slidably connected to the inner wall of the mounting frame. The top of the moving plate is fixedly connected to the moving seat. The second motor is fixedly installed on the top of the moving seat. The output end of the second motor is fixedly connected to the rotating shaft. The top plate is fixedly installed on the top of the rotating shaft. The electric push rod is fixedly installed on the top of the top plate. The output end of the electric push rod is fixedly connected to the lifting plate. The third motor is fixedly installed on the top of the lifting plate. The output end of the third motor is fixedly connected to the driving shaft.

[0007] Furthermore, support legs are fixedly installed at the bottoms of both the drying tank and the cleaning tank, and foot pads are fixedly installed at the bottom ends of the support legs.

[0008] Furthermore, the cleaning component includes a water inlet pipe, a water collecting plate and cleaning spray nozzles. The water inlet pipe is fixedly installed inside one side wall of the cleaning tank and is communicated with the water collecting plate.

[0009] Furthermore, the water collecting plate is fixedly installed inside the side wall of the cleaning tank. The cleaning spray nozzles are fixedly installed inside the inner side wall of the water collecting plate. There are multiple groups of cleaning spray nozzles, which are evenly distributed in a circumferential array.

[0010] Furthermore, the drying mechanism includes an air heating tank assembly, an air inlet pipe and blowing spray nozzles. The air heating tank assembly is fixedly installed on the inner side wall of the drying tank. The air inlet pipe is fixedly installed at the input end of the air heating tank assembly. The output end of the air heating tank assembly is communicated with the blowing spray nozzles.

[0011] Furthermore, the circulation component includes a liquid filter assembly, a reflux spray nozzle, a first water pump, a circulation pipe, a second water pump, a connecting pipe, a recovery pipe and a reflux pipe. The liquid filter assembly is fixedly installed at the bottom of the cleaning tank. The input end of the liquid filter assembly is communicated with the cleaning tank through the reflux pipe.

[0012] Furthermore, the first water pump is fixedly installed on an outer wall side of the liquid filter assembly. The output end of the first water pump is fixedly connected to the circulation pipe and extends to the inner top of the cleaning tank. The reflux spray head is fixedly installed outside the top end of the circulation pipe. The second water pump is fixedly installed at the bottom of the drying tank. The output end of the second water pump communicates with the liquid filter assembly through a recovery pipe, and the input end of the second water pump communicates with the bottom of the drying tank through a connecting pipe.

[0013] Furthermore, the installation mechanism includes an installation mesh box, a spring, and a clamping block. An installation groove is formed in the front part of the installation mesh box. One end of the spring is fixedly connected to the side wall of the installation groove, and the other end of the spring is fixedly connected to the clamping block. The end of the clamping block away from the spring is set to be arc-shaped. The installation mesh box is fixedly installed at the bottom end of the drive shaft.

[0014] Advantages of the present invention: By providing an adjustment mechanism, during use, turn on the switch of the first motor, so that the lead screw drives the moving plate to move, and then the second motor can reciprocate with the moving seat, facilitating the blind hole plate to move into the cleaning tank and the drying tank respectively for processing. At the same time, turn on the switch of the second motor, so that the rotating shaft drives the top plate to rotate, conveniently adjusting the direction of the installation mechanism, and then facilitating the loading and unloading of the blind hole plate, improving the working efficiency of loading and unloading. Turn on the switch of the electric push rod, so that the lifting plate can move up and down for adjustment, facilitating the depth adjustment of the installation mechanism and also facilitating its up and down movement, so that the cleaning mechanism can spray different positions of the installation mechanism. At the same time, turn on the switch of the third motor, so that the drive shaft drives the installation mechanism to rotate, making the installation mechanism rotatable, facilitating to increase its contact rate with the cleaning liquid, and conveniently improving its cleaning and drying efficiency. The whole process is efficient and automated, greatly improving the accuracy and production efficiency of blind hole plate processing. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for description in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the outer layer processing equipment for the second-order blind hole plate with multiple pressings; Figure 2 It is a three-dimensional schematic diagram of the cleaning tank and the drying tank of an embodiment of the outer layer processing equipment for the second-order blind hole plate with multiple pressings; Figure 3 It is an assembly schematic diagram of the adjustment mechanism of an embodiment of the outer layer processing equipment for the second-order blind hole plate with multiple pressings; Figure 4 Schematic diagram of the internal structure of the installation net box for the outer layer treatment device of the second-order blind via board in this multi-lamination embodiment Figure 5 Stereoscopic diagram of the circulation mechanism of the outer layer treatment device of the second-order blind via board in this multi-lamination embodiment

[0017] Explanation of the markings in the figure: 1. Cleaning tank; 2. Drying tank; 3. Installation plate; 4. Installation frame; 5. Motor 1; 6. Lead screw; 7. Top plate; 8. Electric push rod; 9. Cleaning spray head; 10. Water collecting plate; 11. Support leg; 12. Foot pad; 13. Air blowing spray head; 14. Air inlet pipe; 15. Air heating box assembly; 16. Liquid filter assembly; 17. Moving plate; 18. Moving seat; 19. Motor 2; 20. Rotating shaft; 21. Motor 3; 22. Lifting plate; 23. Driving shaft; 24. Installation net box; 25. Spring; 26. Clamping block; 27. Return spray head; 28. Water pump 1; 29. Circulation pipe; 30. Water pump 2; 31. Connecting pipe; 32. Recovery pipe; 33. Return pipe. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the appended Figures 1-5 , and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] It should be understood that when used in this specification and the appended claims, the terms "comprises" and "comprising" indicate the presence of the described features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations.

[0020] It should also be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in this specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms of "a", "an", and "the" are intended to include the plural forms.

[0021] It should be further understood that the term " / and" used in this specification of the present invention and the appended claims refers to any combination and all possible combinations of one or more of the related listed items, and includes these combinations.

[0022] Please refer to Figures 1-5As shown in the figure, an outer layer processing device for a multi-pressing second-order blind via board includes a cleaning tank 1 and a drying tank 2. A cleaning component is arranged inside the cleaning tank 1, and a drying component is arranged inside the drying tank 2. A circulation component is arranged at the bottom of the cleaning tank 1 and the drying tank 2. An installation plate 3 is fixedly installed on the rear outer wall of the cleaning tank 1 and the drying tank 2. An adjusting mechanism is arranged on the top of the installation plate 3, and an installation mechanism is arranged at the bottom of the adjusting mechanism; The adjusting mechanism includes an installation frame 4, a first motor 5, a lead screw 6, a top plate 7, an electric push rod 8, a second motor 19, a rotating shaft 20, a moving plate 17, a moving seat 18, a lifting plate 22, a third motor 21 and a driving shaft 23. The installation frame 4 is fixedly installed on the top of the installation plate 3. The first motor 5 is fixedly installed on one outer wall of the installation frame 4. The output end of the first motor 5 is fixedly connected to the lead screw 6. The moving plate 17 is movably sleeved outside the lead screw 6 and is slidably connected to the inner wall of the installation frame 4. The top of the moving plate 17 is fixedly connected to the moving seat 18. The second motor 19 is fixedly installed on the top of the moving seat 18. The output end of the second motor 19 is fixedly connected to the rotating shaft 20. The top plate 7 is fixedly installed on the top of the rotating shaft 20. The electric push rod 8 is fixedly installed on the top of the top plate 7. The output end of the electric push rod 8 is fixedly connected to the lifting plate 22. The third motor 21 is fixedly installed on the top of the lifting plate 22. The output end of the third motor 21 is fixedly connected to the driving shaft 23.

[0023] Specifically, by setting an adjusting mechanism, when in use, turn on the switch of the first motor 5, so that the lead screw 6 drives the moving plate 17 to move, and then the second motor 19 can move back and forth with the moving seat 18, which is convenient for the blind via board to move into the cleaning tank 1 and the drying tank 2 respectively for processing. At the same time, turn on the switch of the second motor 19, so that the rotating shaft 20 drives the top plate 7 to rotate, which is convenient for adjusting the direction of the installation mechanism, and then convenient for the loading and unloading of the blind via board, improving the working efficiency of loading and unloading. Turn on the switch of the electric push rod 8, so that the lifting plate 22 can move up and down for adjustment, which is convenient for adjusting the depth of the installation mechanism and also for its up and down movement, so that the cleaning mechanism can spray different positions of the installation mechanism. At the same time, turn on the switch of the third motor 21, so that the driving shaft 23 drives the installation mechanism to rotate, so that the installation mechanism can rotate, which is convenient for increasing its contact rate with the cleaning liquid and improving its cleaning and drying efficiency. The whole process is efficient and automated, greatly improving the accuracy and production efficiency of blind via board processing.

[0024] In this embodiment, support legs 11 are fixedly installed at the bottoms of both the drying tank 2 and the cleaning tank 1, and foot pads 12 are fixedly installed at the bottoms of the support legs 11.

[0025] Specifically, an external power supply of the device provides electrical energy for the device. The device is externally connected to a controller, and the controller is electrically connected to the motor, the electric push rod 8, the water pump, the liquid filter assembly 16 and the air heating tank assembly 15.

[0026] The cleaning component includes a water inlet pipe, a water collecting plate 10, and a cleaning spray head 9. The water inlet pipe is fixedly installed inside one side wall of the cleaning tank 1 and is communicated with the water collecting plate 10. The water collecting plate 10 is fixedly installed inside the side wall of the cleaning tank 1, and the cleaning spray head 9 is fixedly installed inside the inner side wall of the water collecting plate 10. There are multiple groups of cleaning spray heads 9, and they are evenly distributed in a circumferential array.

[0027] Specifically, during use, the installation mechanism can be moved inside the cleaning tank 1 through the adjustment mechanism. The water inlet pipe in the cleaning tank 1 introduces the cleaning liquid into the water collecting plate 10, and the water collecting plate 10 distributes the cleaning liquid to multiple cleaning spray heads 9 through pipes. These spray heads are evenly distributed in a circumferential shape, so as to thoroughly clean the blind hole plate from multiple angles, making the cleaning more uniform and the cleaning effect better.

[0028] The drying mechanism includes an air heating box assembly 15, an air inlet pipe 14, and a blowing spray head 13. The air heating box assembly 15 is fixedly installed on the inner side wall of the drying box 2, the air inlet pipe 14 is fixedly installed at the input end of the air heating box assembly 15, and the output end of the air heating box assembly 15 is communicated with the blowing spray head 13.

[0029] Specifically, the air heating box assembly 15 is fixedly installed on the inner side wall of the drying box 2 and is communicated with the outside air through the air inlet pipe 14. After heating the air, it blows towards the workpiece through the blowing spray head 13 to achieve rapid and uniform drying, saving the subsequent drying time.

[0030] The circulation component includes a liquid filter assembly 16, a reflux spray head 27, a first water pump 28, a circulation pipe 29, a second water pump 30, a connecting pipe 31, a recovery pipe 32, and a reflux pipe 33. The liquid filter assembly 16 is fixedly installed at the bottom of the cleaning tank 1. The input end of the liquid filter assembly 16 is communicated with the cleaning tank 1 through the reflux pipe 33. The first water pump 28 is fixedly installed on the outer side wall of one side of the liquid filter assembly 16. The output end of the first water pump 28 is fixedly connected to the circulation pipe 29 and extends to the inner top of the cleaning tank 1. The reflux spray head 27 is fixedly installed outside the top end of the circulation pipe 29. The second water pump 30 is fixedly installed at the bottom of the drying box 2. The output end of the second water pump 30 is communicated with the liquid filter assembly 16 through the recovery pipe 32. The input end of the second water pump 30 is communicated with the bottom of the drying box 2 through the connecting pipe 31.

[0031] Specifically, during use, turn on the switch of the liquid filter assembly 16. The liquid filter assembly 16 can adopt filter elements such as PP cotton filters, ceramic filter elements, activated carbon filters, etc. Then, the cleaning liquid inside the cleaning tank 1 enters the liquid filter assembly 16 through the return pipe 33. For the residual liquid after drying, turn on the switch of the second water pump 30, so that the liquid enters the liquid filter assembly 16 through the connecting pipe 31 and the recovery pipe 32. Turn on the switch of the first water pump 28, so that the filtered liquid flows back to the cleaning tank 1 through the return spray head 27, which is conducive to realizing the recycling of the cleaning liquid and keeping the cleaning liquid clean and tidy, thereby improving the cleaning efficiency and achieving an efficient and environmentally friendly treatment effect.

[0032] The installation mechanism includes an installation mesh box 24, a spring 25 and a clamping block 26. An installation groove is formed in the front part of the installation mesh box 24. One end of the spring 25 is fixedly connected to the side wall of the installation groove, and the other end of the spring 25 is fixedly connected to the clamping block 26. The end of the clamping block 26 away from the spring 25 is set to be arc-shaped. The installation mesh box 24 is fixedly installed at the bottom end of the drive shaft 23.

[0033] Specifically, during use, insert the blind hole plate into the installation groove of the installation mesh box 24. Then, under the action of the spring 25, the clamping block 26 performs limit clamping on the blind hole plate. The clamping block 26 can also be replaced with structures such as rollers.

[0034] In summary, compared with the prior art, the second-order blind hole plate outer layer treatment device has at least the following beneficial effects: By setting an adjustment mechanism, during use, turn on the switch of the first motor 5, so that the lead screw 6 drives the moving plate 17 to move, so that the second motor 19 can reciprocate with the moving seat 18, which is convenient for the blind hole plate to move into the cleaning tank 1 and the drying tank 2 respectively for processing. At the same time, turn on the switch of the second motor 19, so that the rotating shaft 20 drives the top plate 7 to rotate, which is convenient for adjusting the direction of the installation mechanism, and thus convenient for loading and unloading the blind hole plate, improving the working efficiency of loading and unloading. Turn on the switch of the electric push rod 8, so that the lifting plate 22 can move up and down for adjustment, which is convenient for adjusting the depth of the installation mechanism and also for its up and down movement, so that the cleaning mechanism can spray different positions of the installation mechanism. At the same time, turn on the switch of the third motor 21, so that the drive shaft 23 can drive the installation mechanism to rotate, so that the installation mechanism can rotate, which is convenient for increasing its contact rate with the cleaning liquid and improving its cleaning and drying efficiency. The whole process is efficient and automated, greatly improving the accuracy and production efficiency of blind hole plate processing.

[0035] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A multi-pressed second-order blind hole plate outer layer processing equipment, characterized in that: include: A washing box and a drying box, wherein a washing component is arranged inside the washing box, a drying component is arranged inside the drying box, a circulation component is arranged at the bottom of the washing box and the drying box, a mounting plate is fixedly installed on the rear outer wall of the washing box and the drying box, an adjustment mechanism is arranged on the top of the mounting plate, and a mounting mechanism is arranged at the bottom of the adjustment mechanism; The adjusting mechanism comprises an installation frame, a motor 1, a screw rod, a top plate, an electric push rod, a motor 2, a rotating shaft, a movable plate, a movable seat, a lifting plate, a motor 3 and a driving shaft. The installation frame is fixedly installed on the top of the installation plate, the motor 1 is fixedly installed on an outer wall of one side of the installation frame, the output end of the motor 1 is fixedly connected to the screw rod, the movable plate is movably sleeved on the outside of the screw rod and is slidingly connected to the inner wall of the installation frame, the top of the movable plate is fixedly connected to the movable seat, the motor 2 is fixedly installed on the top of the movable seat, the output end of the motor 2 is fixedly connected to the rotating shaft, the top plate is fixedly installed on the top of the rotating shaft, the electric push rod is fixedly installed on the top of the top plate, the output end of the electric push rod is fixedly connected to the lifting plate, the motor 3 is fixedly installed on the top of the lifting plate, and the output end of the motor 3 is fixedly connected to the driving shaft.

2. The outer layer processing equipment of a second-order blind hole plate with multiple pressing according to claim 1 is characterized in that: The bottoms of the drying box and the washing box are both fixedly mounted with support legs, and the bottom ends of the support legs are fixedly mounted with foot pads.

3. The outer layer processing equipment of a second-order blind hole plate with multiple pressing according to claim 2 is characterized in that: The cleaning assembly comprises a water inlet pipe, a water collecting plate and a cleaning nozzle. The water inlet pipe is fixedly installed inside a side wall of the cleaning box and is communicated with the water collecting plate.

4. The outer layer processing equipment of a second-order blind hole plate with multiple pressing according to claim 3 is characterized in that: The water collecting plate is fixedly installed inside the side wall of the cleaning box, and the cleaning nozzles are fixedly installed inside the inner wall of the water collecting plate. The cleaning nozzles are arranged in multiple groups and are evenly distributed in a circular array.

5. The outer layer processing equipment of the second-order blind hole plate with multiple pressing according to claim 4 is characterized in that: The drying mechanism includes an air heating box assembly, an air inlet pipe and an air blowing nozzle. The air heating box assembly is fixedly installed on the inner wall of the drying box, the air inlet pipe is fixedly installed at the input end of the air heating box assembly, and the output end of the air heating box assembly is connected to the air blowing nozzle.

6. The outer layer processing equipment of a second-order blind hole plate with multiple pressing according to claim 5 is characterized in that: The circulation component includes a liquid filter component, a reflux nozzle, a water pump 1, a circulation pipe, a water pump 2, a connecting pipe, a recovery pipe and a reflux pipe. The liquid filter component is fixedly installed at the bottom of the cleaning tank, and the input end of the liquid filter component is connected to the cleaning tank through the reflux pipe.

7. The outer layer processing equipment of a second-order blind hole plate with multiple pressing according to claim 6 is characterized in that: The water pump 1 is fixedly installed on the outer wall of one side of the liquid filter assembly, the output end of the water pump 1 is fixedly connected to the circulation pipe and extends to the inner top of the cleaning box, the reflux nozzle is fixedly installed on the top outside of the circulation pipe, the water pump 2 is fixedly installed on the bottom of the drying box, the output end of the water pump 2 is connected to the liquid filter assembly through the recovery pipe, and the input end of the water pump 2 is connected to the bottom of the drying box through the connecting pipe.

8. The outer layer processing equipment of a second-order blind hole plate with multiple pressing according to claim 1 is characterized in that: The mounting mechanism includes a mounting box, a spring and a clamping block. A mounting groove is opened at the front of the mounting box. One end of the spring is fixedly connected to the side wall of the mounting groove, and the other end of the spring is fixedly connected to the clamping block. The end of the clamping block away from the spring is set in an arc shape. The mounting box is fixedly installed at the bottom end of the driving shaft.

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