Flexible circuit board production drying device

Abstract

The utility model provides a kind of flexible circuit board production drying device, including work base, the work base includes material conveying frame and drying box, the material conveying frame is set to drying box one side and is matched with it Setting, the inside of the material conveying frame is provided with conveyor belt, and flexible circuit board is conveyed to drying box inside by conveyor belt loading and is carried out drying treatment, the drying box includes fan cavity, outer frame and top cover, the both sides of the fan cavity are symmetrically provided with auxiliary wheel assembly, the outer frame is symmetrically provided with adjusting screw rod, the bottom end of the adjusting screw rod is rotatably connected with limit rod assembly, the limit rod assembly is set to the position above auxiliary wheel assembly and is matched with it Setting, it is convenient to position the both sides of flexible circuit board, the inside of the material conveying frame is symmetrically provided with two groups of conveying rollers, the conveyor belt is matched with the outer surface of two groups of conveying rollers, the both sides of the upper surface of the material conveying frame are symmetrically provided with two groups of limit plates and are fixedly connected.

Description

Technical Field

[0001] This utility model relates to the field of flexible circuit board technology, specifically to a flexible circuit board production drying device. Background Technology

[0002] Drying is a crucial step in the production of flexible printed circuit boards (FPCBs). Its purpose is to remove residual solvents and moisture from the surface and interior of the board to ensure its performance and quality. If excessive moisture adheres to the outer wall of the FPCB and is not dried, multiple FPCBs may stick together, potentially leading to damage.

[0003] A flexible circuit board production drying device disclosed in patent application number "CN222996778U" includes: a housing, a dryer mounted on top of the housing, a limiting frame inside the housing, a clamping assembly inside the limiting frame, a circuit board body movably placed inside the limiting frame, a motor mounted on one side of the housing, and the clamping assembly including a positioning plate and two mesh plates. The limiting frame has a groove, and the clamping assembly is located inside the groove. Bolts are inserted into threaded holes to fix the positioning plate to one of the mesh plates. Then, the circuit board body is placed into a locking hole. After all circuit board bodies are placed into the locking holes, the other mesh plate is connected to the positioning plate, and bolts are inserted into threaded holes to connect the mesh plate to the positioning plate.

[0004] However, the above-mentioned device still has the following problems during implementation: 1. Existing flexible circuit board drying equipment has many shortcomings. The existing circuit boards lack a matching feeding structure when they are loaded. When they enter the drying chamber, they come into a lot of contact with the workers' hands, which can easily cause scratches on the surface of the circuit boards. Some drying equipment uses a single hot air circulation method, which leads to uneven drying and cannot simultaneously dry the surface and bottom of the flexible circuit boards, resulting in low work efficiency. 2. Existing flexible circuit board drying equipment often cannot flexibly adjust drying parameters according to the thickness, material and other characteristics of the flexible circuit board, resulting in poor applicability. Furthermore, when drying flexible limiting plates of different specifications and thicknesses, displacement occurs due to poor positioning, leading to poor drying effect of the flexible circuit board. Utility Model Content

[0005] The purpose of this invention is to provide a drying device for flexible circuit board production to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A flexible circuit board production drying device includes a working platform, the working platform includes a material conveying frame and a drying chamber, the material conveying frame is arranged on one side of the drying chamber and matched therewith, and a conveyor belt is arranged inside the material conveying frame. The flexible circuit board is fed into the drying chamber by the conveyor belt and is transported to the drying chamber for drying. The drying chamber includes a fan cavity, an outer frame, and a top cover. Auxiliary wheel assemblies are symmetrically arranged on both sides of the fan cavity. Adjusting screws are symmetrically arranged on the outer frame. The bottom end of the adjusting screw is rotatably connected to a limit rod assembly. The limit rod assembly is positioned above the auxiliary wheel assembly and matched to it to facilitate the positioning of both sides of the flexible circuit board.

[0007] Preferably, two sets of conveying rollers are symmetrically arranged inside the material conveying frame, and the conveyor belt is fitted onto the outer surface of the two sets of conveying rollers. Two sets of limiting plates are symmetrically and fixedly connected on both sides of the upper surface of the material conveying frame to facilitate limiting the two sides when the flexible circuit board is being loaded.

[0008] Preferably, a drying fan is installed inside the fan cavity, and a drying plate is connected to the air outlet of the drying fan. The drying plate is embedded in the top surface of the fan cavity, and multiple sets of air outlet holes are evenly distributed and equidistantly opened on the drying plate. The height of the drying plate is matched with the height of the conveyor belt.

[0009] Preferably, a blower fan is embedded in the center of the top cover, and the blower fan dries the flexible circuit board placed on the upper surface of the fan cavity. The top cover is hinged between two sets of outer frames, and a handle is fixedly connected to one side of the top cover.

[0010] Preferably, the auxiliary wheel assembly includes a support rod, a roller, and a compression spring, and two sets of mounting cavities are symmetrically arranged on both sides of the fan cavity, with the support rod matched and disposed inside the mounting cavity; The roller is rotatably connected to the outer surface of the support rod, and connecting blocks are provided at both ends of the support rod. The bottom end of the compression spring is fixedly connected to the bottom of the mounting cavity, and the top end of the compression spring is fixedly connected to the bottom surface of the connecting block.

[0011] Preferably, the outer frame has symmetrically opened threaded holes, the adjusting screw is threadedly connected to the inside of the threaded holes, the top of the adjusting screw is fixedly connected to an adjusting handle, the bottom of the outer frame has symmetrically opened feeding grooves, and the limiting rod assembly is movably connected to the inside of the feeding grooves.

[0012] Preferably, the limiting rod assembly includes a rod body and a pressure wheel. The pressure wheel is symmetrically arranged at both ends of the rod body. A positioning block is fixedly installed at the center of the rod body. A small hole is opened at the center of the top of the positioning block. A rotating bearing is arranged inside the small hole. The bottom end of the adjusting screw passes through the small hole and is embedded in the rotating bearing.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. By matching the feeding rack with the drying chamber, the material is fed into the drying chamber through the conveyor belt inside the feeding rack. This is different from the manual feeding method. The conveyor belt is made of high-strength, wear-resistant and smooth material, such as polyurethane, to avoid scratching the surface of the circuit board during the transportation of flexible circuit boards. 2. By matching the auxiliary wheel assembly with the limit rod assembly, flexible circuit boards of different specifications can be accurately positioned and guided, so that the circuit boards can be accurately placed on the fan cavity. The auxiliary wheel assembly is flexibly set inside the mounting cavity and can be matched with the pressure roller according to the thickness of the circuit board to press and hold the bottom and top surfaces of the circuit board for feeding. The surface of the pressure roller is covered with an elastic rubber layer, which can not only provide a good guiding effect for the circuit board, but also avoid hard compression of the circuit board and damage. 3. By connecting the air outlet of the blower cavity inside the blower chamber with the drying board, the bottom surface of the flexible circuit board is dried by blowing air, and then the top surface of the circuit board is dried by the blower fan embedded in the top cover, which speeds up the drying efficiency of the flexible circuit board. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the main structure of the drying chamber of this utility model; Figure 3 This is an exploded view of the fan cavity of this utility model; Figure 4 This is a partial exploded structural diagram of the limiting rod assembly of this utility model.

[0015] In the diagram: 1. Conveying frame; 101. Conveyor belt; 2. Drying chamber; 201. Fan chamber; 202. Outer frame; 203. Top cover; 3. Auxiliary wheel assembly; 301. Support rod; 302. Roller; 303. Compression spring; 4. Adjusting screw; 5. Limiting rod assembly; 501. Rod body; 502. Pressure roller; 6. Limiting plate; 7. Drying plate; 8. Fan; 9. Mounting cavity; 10. Threaded hole; 11. Feeding trough; 12. Positioning block. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-4 This utility model provides a technical solution: Example 1: A flexible circuit board production drying device includes a working platform, which includes a feeding rack 1 and a drying chamber 2. The feeding rack 1 is arranged on one side of the drying chamber 2 and matched therewith. A conveyor belt 101 is arranged inside the feeding rack 1. Flexible circuit boards are fed into the drying chamber 2 through the conveyor belt 101 for drying. Unlike manual feeding by workers, the conveyor belt 101 is made of a high-strength, wear-resistant and smooth-surfaced material, such as polyurethane, to avoid scratching the surface of the circuit board during the transportation of the flexible circuit board. The drying chamber 2 includes a fan chamber 201, an outer frame 202, and a top cover 203. Auxiliary wheel assemblies 3 are symmetrically arranged on both sides of the fan chamber 201. Adjusting screws 4 are symmetrically arranged on the outer frame 202. The bottom end of the adjusting screws 4 is rotatably connected to a limit rod assembly 5. The limit rod assembly 5 is set above the auxiliary wheel assembly 3 and matched with it, which facilitates the positioning of both sides of the flexible circuit board. It can accurately position and guide flexible circuit boards of different specifications, so that the circuit board can be accurately placed on the fan chamber 201. The material feeding frame 1 has two sets of conveying rollers symmetrically arranged inside. The conveyor belt 101 is fitted onto the outer surface of the two sets of conveying rollers. Two sets of limiting plates 6 are symmetrically and fixedly connected on both sides of the upper surface of the material feeding frame 1, which facilitates limiting the two sides when the flexible circuit board is loaded, and avoids displacement during loading. A drying fan is installed inside the fan cavity 201. The air outlet of the drying fan is connected to a drying plate 7. The drying plate 7 is embedded in the top surface of the fan cavity 201. Multiple sets of air outlet holes are evenly distributed and equidistantly opened on the drying plate 7. The height of the drying plate 7 is matched with the height of the conveyor belt 101. A blower 8 is installed in the center of the top cover 203. The blower 8 dries the flexible circuit board placed on the upper surface of the blower cavity 201 by blowing air out from the top. The top cover 203 is hinged between one side of the two sets of outer frames 202. A handle is fixedly connected to one side of the top cover 203.

[0018] Example 2: Based on Embodiment 1, this embodiment details the auxiliary wheel assembly 3 and the limiting rod assembly 5 of Embodiment 1. The auxiliary wheel assembly 3 includes a support rod 301, a roller 302 and a compression spring 303. Two sets of mounting cavities 9 are symmetrically arranged on both sides of the fan cavity 201, and the support rod 301 is matched and arranged inside the mounting cavity 9. The roller 302 is rotatably connected to the outer surface of the support rod 301. Connecting blocks are provided at both ends of the support rod 301. The bottom end of the compression spring 303 is fixedly connected to the bottom of the mounting cavity 9, and the top end of the compression spring 303 is fixedly connected to the bottom surface of the connecting block. The auxiliary wheel assembly 3 is elastically set inside the mounting cavity 9. It can be matched with the pressure wheel 502 according to the thickness of the circuit board to press and hold the bottom and top surfaces of the circuit board for feeding. The surface of the pressure wheel 502 is covered with an elastic rubber layer, which can not only provide good guidance for the circuit board, but also avoid hard squeezing of the circuit board and damage. The outer frame 202 has symmetrically opened threaded holes 10, the adjusting screw 4 is threadedly connected to the inside of the threaded hole 10, and the top of the adjusting screw 4 is fixedly connected to the adjusting handle. The bottom surface of the outer frame 202 has symmetrically opened feeding grooves 11, and the limiting rod assembly 5 is movably connected to the inside of the feeding grooves 11. The limiting rod assembly 5 includes a rod body 501 and a pressure roller 502. The pressure roller 502 is symmetrically arranged at both ends of the rod body 501. A positioning block 12 is fixedly installed in the center of the rod body 501. A small hole is opened in the center of the top of the positioning block 12. A rotating bearing is installed inside the small hole. The bottom end of the adjusting screw 4 passes through the small hole and is embedded in the rotating bearing, so as to facilitate the adjustment of the working height of the limiting rod assembly 5 according to the thickness of the circuit board.

[0019] Working principle: During use, the device is matched with the drying chamber 2 by the material feeding rack 1. The material is fed into the drying chamber 2 by the conveyor belt 101 inside the material feeding rack 1. Unlike the manual feeding method, the conveyor belt 101 is made of high-strength, wear-resistant and smooth material, such as polyurethane, to avoid scratching the surface of the circuit board during the conveying of the flexible circuit board. By matching the auxiliary wheel assembly 3 with the limiting rod assembly 5, flexible circuit boards of different specifications can be accurately positioned and guided, so that the circuit boards can be accurately placed on the fan cavity 201. The auxiliary wheel assembly 3 is elastically set inside the mounting cavity 9 and can be matched with the pressure wheel 502 according to the thickness of the circuit board to press and hold the bottom and top surfaces of the circuit board for feeding. The surface of the pressure wheel 502 is covered with an elastic rubber layer, which can not only provide good guidance for the circuit board, but also avoid hard squeezing of the circuit board and damage. The airflow from the fan inside the fan chamber 201 is connected to the drying plate 7, which blows air to dry the bottom surface of the flexible circuit board. Then, the fan 8 installed in the top cover 203 blows air to dry the top surface of the circuit board, thus speeding up the drying efficiency of the flexible circuit board.

[0020] It should be noted that the conveyor belt 101, the fan chamber 201 and the blower 8 are existing devices or equipment, or devices or equipment that can be implemented with existing technology. Their power supply, specific composition and principle are clear to those skilled in the art, so they will not be described in detail.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flexible circuit board production drying device, comprising a work base, characterized in that: The working platform includes a material conveyor (1) and a drying chamber (2). The material conveyor (1) is set on one side of the drying chamber (2) and matched with it. The material conveyor (1) is equipped with a conveyor belt (101) inside. The flexible circuit board is fed and transported to the drying chamber (2) through the conveyor belt (101) for drying. The drying chamber (2) includes a fan chamber (201), an outer frame (202) and a top cover (203). Auxiliary wheel assemblies (3) are symmetrically arranged on both sides of the fan chamber (201). Adjusting screws (4) are symmetrically arranged on the outer frame (202). The bottom end of the adjusting screw (4) is rotatably connected to a limit rod assembly (5). The limit rod assembly (5) is set above the auxiliary wheel assembly (3) and matched to it, so as to facilitate the positioning of both sides of the flexible circuit board.

2. The flexible circuit board production drying device according to claim 1, characterized in that: The material conveyor (1) is symmetrically provided with two sets of conveying rollers inside. The conveyor belt (101) is fitted onto the outer surface of the two sets of conveying rollers. Two sets of limiting plates (6) are symmetrically and fixedly connected on both sides of the upper surface of the material conveyor (1) to facilitate limiting the two sides when the flexible circuit board is loaded.

3. The flexible circuit board production drying device according to claim 1, characterized in that: A drying fan is installed inside the fan cavity (201). A drying plate (7) is connected to the air outlet of the drying fan. The drying plate (7) is embedded in the top surface of the fan cavity (201). Multiple sets of air outlet holes are evenly distributed and equidistantly opened on the drying plate (7). The height of the drying plate (7) is matched with the height of the conveyor belt (101).

4. The flexible circuit board production drying device according to claim 1, characterized in that: The top cover (203) is fitted with a blower (8) in the center. The blower (8) dries the flexible circuit board placed on the upper surface of the fan cavity (201) by blowing air out from the top. The top cover (203) is hinged between two sets of outer frames (202) on one side. A handle is fixedly connected to one side of the top cover (203).

5. The flexible circuit board production drying device according to claim 1, characterized in that: The auxiliary wheel assembly (3) includes a support rod (301), a roller (302) and a compression spring (303). Two sets of mounting cavities (9) are symmetrically arranged on both sides of the fan cavity (201), and the support rod (301) is matched and arranged inside the mounting cavity (9). The roller (302) is rotatably connected to the outer surface of the support rod (301). The two ends of the support rod (301) are fitted with connecting blocks. The bottom end of the compression spring (303) is fixedly connected to the bottom of the mounting cavity (9). The top end of the compression spring (303) is fixedly connected to the bottom surface of the connecting block.

6. The flexible circuit board production drying device according to claim 1, characterized in that: The outer frame (202) is symmetrically provided with threaded holes (10), the adjusting screw (4) is threadedly connected to the inside of the threaded hole (10), the top of the adjusting screw (4) is fixedly connected with an adjusting handle, the bottom of the outer frame (202) is symmetrically provided with a feeding groove (11), and the limiting rod assembly (5) is movably connected to the inside of the feeding groove (11).

7. The flexible circuit board production drying apparatus according to claim 6, characterized in that: The limiting rod assembly (5) includes a rod body (501) and a pressure wheel (502). The pressure wheel (502) is symmetrically arranged at both ends of the rod body (501). A positioning block (12) is fixedly installed in the center of the rod body (501). A small hole is opened in the center of the top of the positioning block (12). A rotating bearing is provided inside the small hole. The bottom end of the adjusting screw (4) passes through the small hole and is embedded in the rotating bearing.

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