Drying device for copper-plated circuit board

Abstract

The utility model relates to a drying device for a copper-plated circuit board. The drying device comprises a drying cylinder, a drying cavity is formed in the drying cylinder, a heat insulation door is arranged on the drying cylinder, a drying assembly is arranged in the drying cavity, and an airing mechanism is arranged in the drying cavity. A liquid conveying slope is arranged on the bottom wall of the drying cavity, a water collecting groove is formed between the outer edge of the liquid conveying slope and the inner curved surface of the drying cavity, a waste liquid collecting mechanism is arranged outside the drying cylinder, and washing liquid left on the surface of the circuit board in the drying process can flow downwards, flow into the water collecting groove and flow into a liquid collecting barrel through a liquid conveying pipe. Therefore, accumulated liquid at the bottom of the drying cavity is avoided, residual ions in the accumulated liquid are prevented from corroding the drying cavity, and the service life of the drying device for the copper-plated circuit board is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to a circuit board, in particular to a drying device for a copper-plated circuit board. Background Art

[0002] In order to improve the conductivity of the circuit board and prevent the surface of the circuit board from being oxidized and corroded, the surface of the circuit board needs to be copper-plated during the production process. Common copper plating processes include chemical copper plating and electroplating copper. Whether it is chemical copper plating or electroplating copper plating, the circuit board needs to be immersed in a reaction tank filled with electroplating solution for plating. Therefore, after the circuit board is plated, it needs to be cleaned and dried.

[0003] During the drying process, the cleaning liquid remaining on the surface of the circuit board will drip down and gather at the bottom of the drying equipment. After long-term use, it is easy to pollute the internal environment of the drying equipment. In addition, there will be residual ions in the cleaning liquid. These ions are easy to corrode the drying equipment and shorten the service life of the drying equipment.

[0004] In response to the above problems, we propose a drying device for copper-plated circuit boards. Utility Model Content

[0005] The utility model provides a drying device for copper-plated circuit boards, which solves the above-mentioned problems existing in the use process of the prior art.

[0006] The technical solution of the utility model is achieved as follows: a drying device for copper-plated circuit boards, comprising a drying drum, a drying chamber is provided in the drying drum, an insulating door is provided on the drying drum, a drying assembly is provided in the drying chamber, and a drying mechanism is provided in the drying chamber;

[0007] The bottom wall of the drying chamber is provided with a liquid feeding slope, a water collecting trough is provided between the outer edge of the liquid feeding slope and the inner curved surface of the drying chamber, and a waste liquid collecting mechanism is provided outside the drying cylinder.

[0008] The utility model is further configured as follows: the waste liquid collection mechanism includes a liquid collection bucket;

[0009] The lower end of the drying cylinder is fixedly connected to a storage rack, the liquid collecting barrel is placed on the storage rack, the bottom wall of the liquid delivery slope is connected to a liquid infusion pipe, and the end of the liquid infusion pipe extends into the liquid collecting barrel.

[0010] The utility model is further configured as follows: the drying component includes an infrared lamp post and a plurality of infrared lamp panels;

[0011] The infrared lamp post is fixedly connected to the top of the drying chamber, and the infrared lamp board is installed on the inner curved surface of the drying chamber.

[0012] The utility model is further configured as follows: the drying mechanism includes a rotating sleeve, the rotating sleeve is rotatably connected to the drying chamber, and the rotating sleeve is arranged outside the infrared lamp column, and a servo motor for driving the rotating sleeve is installed on the drying cylinder;

[0013] A plurality of drying racks are fixedly connected to the outer curved surface of the rotating sleeve, and each of the drying racks is provided with a clamping assembly.

[0014] The present invention is further configured as follows: the clamping assembly includes a clamping plate, and the clamping plate is mounted on the drying rack;

[0015] The clamping plate is rotatably connected with a plurality of screw rods, and the screw rods are all threadedly connected to the drying rack.

[0016] The present invention is further configured as follows: the screw comprises a limited position section and a threaded section;

[0017] The threaded section is threadedly connected to the drying rack, the limiting section is rotatably connected to the clamping plate, and the diameter of the limiting section is smaller than that of the threaded section.

[0018] The present invention is further configured as follows: the rotating sleeve is made of high-transmittance PMMA material.

[0019] In summary, the beneficial effects of the present invention are:

[0020] During the drying process, the washing liquid remaining on the surface of the circuit board will flow downward and into the water collection tank, and then into the liquid collection barrel through the liquid infusion pipe, thereby avoiding liquid accumulation at the bottom of the drying chamber and preventing the residual ions in the accumulated liquid from corroding the drying chamber, thereby effectively extending the service life of the drying device for the copper-plated circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a cross-sectional view of the utility model;

[0024] Figure 3 This is a schematic structural diagram of the rotating sleeve in the present utility model;

[0025] Figure 4This is a schematic diagram of the connection structure between the screw, the drying rack and the clamping plate in the utility model.

[0026] Numbers in the figure: 11, drying drum; 12, drying chamber; 13, heat-insulating door; 14, liquid delivery slope; 15, infrared lamp column; 16, infrared lamp board; 18, rotating sleeve; 19, drying rack; 20, splint; 21, screw; 22, limiting section; 23, threaded section; 24, liquid collecting barrel; 25, storage rack; 26, infusion tube; 27, servo motor; 28, water collecting tank. DETAILED DESCRIPTION

[0027] The following is a combination of the appended examples of the present invention Figure 1-4 , clearly and completely describes the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0028] Example:

[0029] like Figures 1 to 4 As shown, a drying device for copper-plated circuit boards includes a drying drum 11, a drying chamber 12 is opened in the drying drum 11, an insulating door 13 is provided on the drying drum 11, and technicians can open the door to load and unload circuit boards. An infrared lamp column 15 is installed on the top of the drying chamber 12, and several infrared lamp panels 16 are installed on the inner curved surface of the drying chamber 12.

[0030] The infrared lamp post 15 is rotatably connected to a rotating sleeve 18 on the outside, and the rotating sleeve 18 is made of high-transmittance PMMA material (high-transmittance PMMA can allow infrared rays to pass through, thereby ensuring that the circuit board can be illuminated and dried by the infrared rays emitted by the infrared lamp post 15). A servo motor 27 for driving the rotating sleeve 18 is installed on the drying cylinder 11. Several drying racks 19 are circumferentially distributed on the outer curved surface of the rotating sleeve 18. A splint 20 for fixing the circuit board is provided on the drying rack 19. Several screws 21 are rotatably connected to the splint 20. The screw 21 includes a limiting section 22 and a threaded section 23. The diameter of the limiting section 22 is smaller than that of the threaded section 23. The threaded section 23 is threadedly connected to the drying rack 19, and the limiting section 22 is rotatably connected to the splint 20. The above structure ensures that the screw 21 will not separate from the splint 20 during rotation.

[0031] The process of fixing the circuit board is as follows: the technician rotates the screw 21 to move the clamping plate 20 away from the drying rack 19 and create a gap, and then the technician places the circuit board between the gaps, and then rotates the screw 21 again to move the clamping plate 20 close to the drying rack 19 and clamp the circuit board, thereby achieving the purpose of fixing the circuit board. The technician can fix several circuit boards to be dried on each of the drying racks 19 by manually rotating the rotating sleeve 18.

[0032] After all circuit boards are fixed, the technician closes the heat-insulating door 13, and the rotating sleeve 18 drives the circuit boards to rotate. During the rotation, the infrared lamp column 15 and the infrared lamp board 16 evenly and comprehensively dry the surface of the circuit boards.

[0033] The bottom wall of the drying chamber 12 is provided with a liquid feeding slope 14, and a water collecting trough 28 is opened between the lower edge of the liquid feeding slope 14 and the inner curved surface of the drying chamber 12. During the drying process, the washing liquid remaining on the surface of the circuit board slides downward and is collected in the water collecting trough 28 through the liquid feeding slope 14. The lower end of the drying cylinder 11 is fixedly connected to a storage rack 25, and a liquid collecting barrel 24 is placed on the storage rack 25. The bottom wall of the liquid feeding slope 14 is connected with a liquid infusion tube 26 made of flexible material, and the end of the liquid infusion tube 26 extends into the liquid collecting barrel 24. After the washing liquid flows into the liquid feeding slope 14, it is collected into the liquid collecting barrel 24 through the liquid infusion tube 26, thereby achieving the purpose of collecting waste liquid, so that the waste liquid will not accumulate in the drying chamber 12 and pollute the drying environment. When the liquid collecting barrel 24 is full of waste liquid, the technician can remove it for treatment and replace it with a new liquid collecting barrel 24.

[0034] It should also be pointed out that the terms indicated in the present invention, such as: "front", "rear", "vertical", "horizontal", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A drying device for copper-plated circuit boards, comprising a drying drum (11), characterized in that: A drying chamber (12) is provided in the drying cylinder (11), an insulating door (13) is provided on the drying cylinder (11), a drying assembly is provided in the drying chamber (12), and a drying mechanism is provided in the drying chamber (12); The bottom wall of the drying chamber (12) is provided with a liquid feeding slope (14), a water collecting trough (28) is provided between the outer edge of the liquid feeding slope (14) and the inner curved surface of the drying chamber (12), and a waste liquid collecting mechanism is provided outside the drying cylinder (11).

2. The drying device for copper-plated circuit boards according to claim 1, characterized in that: The waste liquid collection mechanism includes a liquid collection barrel (24); The lower end of the drying drum (11) is fixedly connected to a storage rack (25), the liquid collecting barrel (24) is placed on the storage rack (25), the bottom wall of the liquid delivery slope (14) is connected to a liquid infusion pipe (26), and the end of the liquid infusion pipe (26) extends into the liquid collecting barrel (24).

3. The drying device for copper-plated circuit boards according to claim 1, characterized in that: The drying component includes an infrared lamp column (15) and a plurality of infrared lamp panels (16); The infrared lamp column (15) is fixedly connected to the top of the drying chamber (12), and the infrared lamp board (16) is installed on the inner curved surface of the drying chamber (12).

4. The drying device for copper-plated circuit boards according to claim 3, characterized in that: The drying mechanism comprises a rotating sleeve (18), the rotating sleeve (18) is rotatably connected to the drying chamber (12), and the rotating sleeve (18) is sleeved outside the infrared lamp column (15), and a servo motor (27) for driving the rotating sleeve (18) is installed on the drying cylinder (11); A plurality of drying racks (19) are fixedly connected to the outer curved surface of the rotating sleeve (18), and each of the drying racks (19) is provided with a clamping assembly.

5. The drying device for copper-plated circuit boards according to claim 4, characterized in that: The clamping assembly comprises a clamping plate (20), and the clamping plate (20) is mounted on the drying rack (19); A plurality of screw rods (21) are rotatably connected to the clamping plate (20), and the screw rods (21) are all threadedly connected to the drying rack (19).

6. The drying device for copper-plated circuit boards according to claim 5, characterized in that: The screw (21) includes a limited position section (22) and a threaded section (23); The threaded section (23) is threadedly connected to the drying rack (19), and the limiting section (22) is rotatably connected to the clamping plate (20). The diameter of the limiting section (22) is smaller than that of the threaded section (23).

7. The drying device for copper-plated circuit boards according to claim 4, characterized in that: The rotating sleeve (18) is made of high-transparency PMMA material.

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