Flexible circuit board drying device

Abstract

The utility model belongs to the technical field of flexible circuit board production, in particular to a flexible circuit board drying device, which is characterized in that a motor protection cover is arranged at the bottom of a drying box, a drying motor is arranged in the motor protection cover, a belt pulley is arranged at the output end of the drying motor, and a transmission shaft is rotationally arranged on a drying plate at the bottom end of the drying box; the bottom end of the transmission shaft is rotationally arranged at the bottom end of the drying box, a belt wheel is arranged on the transmission shaft, the transmission belt is in transmission connection with the belt wheel arranged on the transmission shaft through the belt wheel arranged at the output end of the drying motor, and a drying fan is arranged on the transmission shaft; the anti-scald rods are arranged at the two ends of the bearing plate, and the movable groove for the bearing plate to enter and exit is formed in the drying box, so that the heated flexible circuit board can be moved out of the flexible circuit board by lifting the movable groove on the side of the bearing plate, and a user is prevented from being scalded due to direct contact with the just used drying device; and the safety of the drying device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of flexible circuit board production, in particular to a flexible circuit board drying device. Background Art

[0002] Flexible printed circuit board, also known as "soft board", is a printed circuit made of flexible insulating substrate. It has many advantages that rigid printed circuit boards do not have. It can be bent, wound, and folded freely, can be arranged arbitrarily according to spatial layout requirements, and can be moved and stretched arbitrarily in three-dimensional space, thereby achieving the integration of component assembly and wire connection. The use of FPC can greatly reduce the size of electronic products and meet the needs of electronic products developing towards high density, miniaturization, and high reliability.

[0003] The specific design and structure of the flexible circuit board drying device may vary depending on the manufacturer and application requirements, but generally speaking, they all include the following key parts: the body frame, heating system and air circulation system, etc. Among them, the body frame serves as the basic supporting structure of the entire drying device and is made of sturdy and durable materials such as stainless steel or high-quality steel to ensure the stability and durability of the equipment; the heating system is the core part of the drying device, usually including heating elements and temperature control systems. The heating elements are responsible for generating heat, while the temperature control system ensures the stability and controllability of the temperature during the drying process; the air circulation system is used to enhance the drying effect. The system includes components such as fans, air ducts and dampers. The fan blows to form a certain airflow, which evenly transfers heat to the flexible circuit boards and removes moisture and impurities on the surface.

[0004] The existing flexible circuit board drying device has certain disadvantages when used. If multiple circuit boards need to be dried at the same time, the multiple circuit boards are usually stacked together. Not only are the surfaces easily scratched by collisions, but the heating is also uneven, the drying is insufficient, the drying speed is slow, the efficiency is low, and a period of waiting is required after drying. Otherwise, the temperature inside the drying box after drying is often high, which can easily cause scalding accidents and poor safety. The existing flexible circuit board drying device often cannot accurately control the drying time, which can easily cause excessive drying and damage to the flexible circuit boards. To address the above problems, a flexible circuit board drying device is proposed. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and address the problems existing in the existing equipment, the utility model proposes a flexible circuit board drying device.

[0006] The technical solution adopted by the utility model to solve the technical problem is a flexible circuit board drying device, comprising a drying box, wherein four drying plates are provided in the drying box, drying grooves are provided in the four drying plates, S-shaped heating tubes are provided in the four drying grooves, and ventilation holes are provided in an array on the four drying plates;

[0007] A motor protection cover is provided at the bottom of the drying box, a drying motor is provided inside the motor protection cover, a pulley is provided at the output end of the drying motor, a transmission shaft is rotatably provided on the drying plate at the bottom of the drying box, the bottom end of the transmission shaft is rotatably provided at the bottom of the drying box, and a pulley is provided on the transmission shaft, the transmission belt is connected through the pulley provided at the output end of the drying motor and the pulley provided on the transmission shaft, a drying fan is provided on the transmission shaft, and a filter plate is provided above the drying fan.

[0008] Preferably, three pressure plates are provided in the drying box, an MS5837-30BA pressure sensor is provided at the center of the pressure plate, a receiving plate is placed on the pressure plate, the three receiving plates are provided with receiving grooves for placing the flexible circuit boards, anti-scalding rods are provided at both ends of the three receiving plates, three movable grooves are provided on the drying box, the three anti-scalding rods are respectively placed in the three movable grooves, and ventilation holes for hot air to enter and exit are provided on the three receiving plates; by arranging the anti-scalding rods and movable grooves, the dried flexible circuit boards can be directly moved out of the device through the receiving plate, preventing users from directly contacting the drying device that has just been used and causing burns, thereby improving the safety of the drying device.

[0009] Preferably, an operation panel is provided on the top of the drying box, and the operation panel is electrically connected to the three S-shaped heating tubes and the drying motor, and the operation panel is electrically connected to an external power supply; the device is connected to the external power supply wire to provide a stable power supply for the device, so that the device can operate normally, and the control panel can be used to set different temperatures and working times for the device according to the dryness and wetness of the flexible circuit board, so as to avoid damage to the flexible circuit board due to excessively high baking temperature, or incomplete drying of the flexible circuit board due to excessively low baking temperature, which affects the drying effect.

[0010] Preferably, there are three drying layers between the four drying plates, and the three receiving plates are respectively arranged in one drying layer. By arranging the receiving plate between two drying plates, both sides of the flexible circuit board can be dried simultaneously, thereby improving the drying efficiency of the flexible circuit board and making the drying efficiency of the flexible circuit board higher.

[0011] Preferably, the tops of the three movable grooves are provided with drying doors for receiving the board in and out, and the three drying doors are movably arranged on the outer wall of the drying box through hinges; when the flexible circuit board is dried, the drying door can act as a closed space, thereby improving heat utilization efficiency and avoiding waste.

[0012] Preferably, the bottom surface of the drying box is provided with four universal wheels, which enables the device to change direction only by rotating the wheels without changing the overall direction. This flexibility makes it easier to move and adjust the device in a small space or on a complex path.

[0013] The benefit of the present invention lies in that a pressure plate is set in the device, a pressure sensor is installed at the center of the pressure plate, and a receiving plate is placed on the pressure plate. Since the weight of the flexible circuit board is different before and after drying, the device can determine whether the flexible circuit board is dried based on the weight of the receiving plate transmitted by the pressure sensor, thereby avoiding damage to the flexible circuit board caused by excessive drying of the device.

[0014] By setting anti-scalding rods at both ends of the receiving plate and opening a movable groove for the receiving plate to enter and exit on the drying box, the heated flexible circuit board can be moved out of the flexible circuit board by lifting the movable groove on the side of the receiving plate, preventing the user from directly contacting the drying device that has just been used and causing burns, thereby improving the safety of the drying device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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 work.

[0016] Figure 1 It is a schematic diagram of the overall cross-sectional structure;

[0017] Figure 2 It is a schematic diagram of the overall structure;

[0018] Figure 3 It is a structural diagram of the drying device;

[0019] Figure 4 It is a schematic diagram of the structure of the receiving device;

[0020] Figure 5 It is a schematic diagram of the circulation device structure;

[0021] In the figure: 1. Drying box; 2. Drying plate; 3. Drying trough; 4. S-shaped heating tube; 5. Ventilation hole; 6. Receiver plate; 7. Anti-scalding rod; 9. Receiver trough; 10. Movable trough; 11. Ventilation hole; 12. Universal wheel; 14. Motor protection cover; 15. Drying motor; 16. Drying layer; 17. Drive shaft; 18. Drive belt; 19. Drying fan; 20. Operation panel; 21. Drying door; 22. Hinge; 23. Pressure plate; 24. Filter plate. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-5 As shown, a flexible circuit board drying device includes a drying box 1, wherein four drying plates 2 are provided in the drying box 1, and drying grooves 3 are provided in the four drying plates 2. S-shaped heating tubes 4 are provided in the four drying grooves 3, and ventilation holes 5 are provided in an array on the four drying plates 2;

[0024] A motor protection cover 14 is provided at the bottom of the drying box 1, and a drying motor 15 is provided in the motor protection cover 14. A pulley is provided at the output end of the drying motor 15. A transmission shaft 17 is rotatably provided on the drying plate 2 at the bottom end of the drying box 1. The bottom end of the transmission shaft 17 is rotatably provided at the bottom of the drying box 1, and a pulley is provided on the transmission shaft 17. The transmission belt 18 is connected to the pulley provided at the output end of the drying motor 15 and the pulley provided on the transmission shaft 17. A drying fan 19 is provided on the transmission shaft 17, and a filter plate 24 is provided above the drying fan 19.

[0025] An operation panel 20 is provided on the top of the drying box 1. The operation panel 20 is electrically connected to the three S-shaped heating tubes 4 and the drying motor 15, and the operation panel 20 is electrically connected to an external power supply.

[0026] During operation, in order to dry the flexible circuit board, the operation panel 20 is powered on and started, and the S-shaped heating tube 4 arranged in the drying tank 3 is energized through the operation panel 20 to adjust the temperature of the air in the heating device. The drying motor 15 installed in the motor protection cover 14 is powered on and started, and the transmission shaft 17 is driven to rotate by the transmission belt 18. The rotation of the transmission shaft 17 drives the drying fan 19 to rotate to generate wind force, so that the hot air in the device flows to dry the flexible circuit board placed in the receiving tank 9.

[0027] Three pressure plates 23 are provided in the drying box 1, and an MS5837-30BA pressure sensor is provided at the center of the pressure plate 23. A receiving plate 6 is placed on the pressure plate 23, and the three receiving plates 6 are provided with receiving grooves 9 for placing flexible circuit boards. Anti-scalding rods 7 are provided at both ends of the three receiving plates 6. Three movable grooves 10 are provided on the drying box 1, and the three anti-scalding rods 7 are respectively placed in the three movable grooves 10, and ventilation holes 11 for hot air to enter and exit are provided on the three receiving plates 6.

[0028] There are three drying layers 16 between the four drying plates 2, and the three receiving plates 6 are respectively arranged in a drying layer 16; the top of the three movable grooves 10 are provided with a drying door 21 for the receiving plates 6 to enter and exit the device, and the three drying doors 21 are movably arranged on the outer wall of the drying box 1 through hinges 22, and four universal wheels 12 are provided on the bottom surface of the drying box 1.

[0029] During operation, in order to place the flexible circuit board, open the drying door 21, lift the anti-scalding rods 7 at both ends of the receiving plate 6, then lift the receiving plate 6 out of the device through the movable groove 10, and then place the flexible circuit board on the receiving groove 9 opened in the receiving plate 6, and then place the receiving plate 6 in the device through the movable groove 10.

[0030] Working principle: In order to place the flexible circuit board, open the drying door 21, lift the anti-scalding rods 7 at both ends of the receiving plate 6, then lift the receiving plate 6 out of the device through the movable groove 10, and then place the flexible circuit board on the receiving groove 9 opened in the receiving plate 6, and then place the receiving plate 6 in the device through the movable groove 10.

[0031] In order to dry the flexible circuit board, the operation panel 20 is powered on and started, and the S-shaped heating tube 4 arranged in the drying tank 3 is energized through the operation panel 20 to adjust the temperature of the air in the heating device. The drying motor 15 installed in the motor protection cover 14 is powered on and started, and the transmission shaft 17 is driven to rotate by the transmission belt 18. The rotation of the transmission shaft 17 drives the drying fan 19 to rotate to generate wind force, so that the hot air in the device flows to dry the flexible circuit board placed in the receiving tank 9.

[0032] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A flexible circuit board drying device, characterized by: The drying box (1) comprises four drying plates (2) provided in the drying box (1), drying grooves (3) provided in the four drying plates (2), S-shaped heating tubes (4) provided in the drying grooves (3), and ventilation holes (5) provided in an array on the drying plates (2); The bottom of the drying box (1) is provided with a motor protection cover (14), a drying motor (15) is provided in the motor protection cover (14), an output end of the drying motor (15) is provided with a pulley, a transmission shaft (17) is rotatably provided on the drying plate (2) at the bottom end of the drying box (1), the bottom end of the transmission shaft (17) is rotatably provided at the bottom end of the drying box (1), and a pulley is provided on the transmission shaft (17), the pulley provided at the output end of the drying motor (15) and the pulley provided on the transmission shaft (17) are connected by transmission belt (18), a drying fan (19) is provided on the transmission shaft (17), and a filter plate (24) is provided above the drying fan (19).

2. The flexible circuit board drying device according to claim 1, characterized in that: Three pressure plates (23) are provided in the drying box (1), and a MS5837-30BA pressure sensor is provided at the center of the pressure plate (23). A receiving plate (6) is placed on the pressure plate (23), and a receiving groove (9) for placing a flexible circuit board is provided in the receiving plate (6). Anti-scalding rods (7) are provided at both ends of the receiving plate (6). Three movable grooves (10) are provided on the drying box (1), and the three anti-scalding rods (7) are respectively placed in the three movable grooves (10), and ventilation holes (11) for hot air to enter and exit are provided on the receiving plate (6).

3. The flexible circuit board drying device according to claim 1, characterized in that: An operation panel (20) is provided on the top of the drying box (1), and the operation panel (20) is electrically connected to the three S-shaped heating tubes (4) and the drying motor (15), and the operation panel (20) is electrically connected to an external power supply.

4. The flexible circuit board drying device according to claim 1, characterized in that: There are three drying layers (16) between the four drying plates (2), and a receiving plate (6) is placed on each of the three drying layers (16).

5. The flexible circuit board drying device according to claim 2, characterized in that: The top ends of the three movable grooves (10) are all provided with drying doors (21) for receiving the receiving plate (6) in and out. The three drying doors (21) are movably arranged on the outer wall of the drying box (1) via hinges (22).

6. The flexible circuit board drying device according to claim 1, characterized in that: Four universal wheels (12) are provided on the bottom surface of the drying box (1).

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