Room type curing device for cover film of flexible circuit board

Abstract

The utility model relates to a flexible circuit board cover film room type curing device, which comprises a curing room main body and a hot air blower, the curing room main body is provided with a curing cavity and an air outlet communicated with the curing cavity, the hot air blower is connected with a hot air pipeline capable of supplying hot air to the curing cavity by the hot air blower, the curing cavity is internally provided with a heat circulating fan, and the heat circulating fan is connected with the hot air pipeline. The curing device further comprises a temperature control system capable of detecting the temperature in the curing cavity and controlling the air speed of the air heater and the air speed of the thermal circulation fan. The utility model has the characteristics that by designing the curing room main body with larger volume and the curing cavity, more cover film coiled materials can be accommodated, so that the curing device can process more cover films at one time, the problem of low production efficiency caused by the limitation of the volume of a drying oven is avoided, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible circuit board manufacturing, in particular to a flexible circuit board covering film room type curing device. Background Art

[0002] In the modern electronics manufacturing industry, flexible printed circuit boards (FPCs) are widely used in fields such as communications, digital displays, aerospace, and new energy due to their lightweight, high-density wiring, and excellent flexural properties. As a crucial component of FPCs, coverlays not only reduce the stress of bending but also protect the copper foil circuits, providing insulation and solder resistance, thereby ensuring the safety and reliability of the circuits. Coverlays are typically made by coating a base film with adhesive on one side and laminating it to a release paper liner. During the production process, coverlays require curing to ensure the adhesive is fully cured and achieve optimal performance.

[0003] Existing cover film curing technologies mostly use ovens. However, due to limited internal space within the oven, only a limited number of cover films can be processed at a time. For example, each standard oven can accommodate only 18 rolls of 500mm wide cover film or 9 rolls of 1000mm wide cover film. This space limitation leads to low production efficiency. The cover film often cannot enter the curing stage immediately after coating, resulting in extended production cycles and difficulty in responding to market changes and customer needs. To meet large-scale production needs, multiple ovens must be configured to operate in parallel, increasing investment costs and operational burdens. Utility Model Content

[0004] The purpose of the utility model is to provide a flexible circuit board covering film room type curing device, so as to solve the above problems.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a flexible circuit board covering film room type curing device, comprising a curing room main body and a hot air blower, the curing room main body is provided with a curing chamber and an exhaust port connected to the curing chamber, the hot air blower is connected to a hot air duct capable of supplying hot air from the hot air blower to the curing chamber, a heat circulation blower is provided in the curing chamber, and the curing device further comprises a temperature control system capable of detecting the temperature in the curing chamber and controlling the wind speed of the hot air blower and the heat circulation blower.

[0006] As a further optimization solution of the present invention, the temperature control system includes a controller and several monitoring devices arranged in the maturation chamber, the hot air duct has several air outlets, the number of the heat circulation fans is at least two, and the heat circulation fans are arranged on the air outlets.

[0007] As a further optimization solution of the present invention, the hot air duct includes a main air duct connected to the hot air blower, the main air duct is connected to at least two distribution pipes extending into the cooking chamber, the distribution pipes are all connected to the same scattered air pipe, and the air outlet is arranged on the scattered air pipe.

[0008] As a further optimization solution of the present invention, the air dispersing duct is arranged along the length direction of the maturation chamber.

[0009] As a further optimization solution of the present invention, the monitoring device includes a temperature sensor.

[0010] As a further optimization solution of the present invention, the temperature control system further includes a memory capable of recording and storing ripening process data.

[0011] As a further optimization solution of the present invention, the aging device also includes a safety monitoring system.

[0012] As a further optimization solution of the present invention, the safety detection system includes a monitoring camera arranged in the curing chamber, and the outer side wall of the curing room body is provided with a display screen electrically connected to the monitoring camera.

[0013] As a further optimization solution of the present invention, the inner side wall of the curing room main body is provided with a heat-insulating layer.

[0014] As a further optimization solution of the present invention, the material of the thermal insulation layer includes thermal insulation cotton.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] 1. By designing a larger curing room body and curing chamber to accommodate more covering film coils, the curing device can process more covering film at one time, avoiding the low production efficiency caused by oven capacity limitations and improving production efficiency;

[0017] 2. Through the setting of hot air blower, heat circulation blower and temperature control system, the temperature control system can detect the temperature in the maturation chamber in real time and automatically adjust the wind speed of the hot air blower and heat circulation blower according to the detection results to ensure that the temperature of the maturation chamber is within the appropriate range, thereby improving the stability and consistency of maturation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 It is a cross-sectional schematic diagram of the present utility model. DETAILED DESCRIPTION

[0020] The following describes the embodiments of the present invention in detail with reference to the accompanying drawings.

[0021] like Figure 1 and Figure 2 As shown, the utility model discloses a flexible circuit board covering film room type curing device, including a curing room main body 1 and a hot air blower 2. The curing room main body 1 is provided with a curing chamber 11 and an exhaust port 12 connected to the curing chamber 11. The hot air blower 2 is connected to a hot air duct 3 that can supply the hot air blower 2 with hot air to the curing chamber 11. A heat circulation blower 4 is provided in the curing chamber 11. The curing device also includes a temperature control system 5 that can detect the temperature in the curing chamber 11 and control the wind speed of the hot air blower 2 and the heat circulation blower 4.

[0022] The curing room main body 1 accommodates large quantities of film to be processed through the curing chamber 11. Compared to traditional ovens, the curing room main body 1 has a greater processing capacity and improves production efficiency. A hot air blower 2 delivers hot air generated by a hot air source into the curing chamber 11 via a hot air duct 3, providing the necessary heat for curing the film. An exhaust vent 12 removes moisture, volatiles, and some hot air from the curing chamber 11 to maintain optimal environmental conditions within the curing chamber 11. The hot air duct 3 connects the hot air blower 2 to the curing chamber 11, ensuring smooth entry of hot air into the chamber 11. A heat circulation fan 4 located within the curing chamber 11 promotes air circulation within the chamber 11, ensuring uniform temperature distribution and preventing localized overheating or underheating. A temperature control system 5 monitors the temperature within the curing chamber 11 and automatically adjusts the operating conditions of the hot air blower 1 and heat circulation fan 4 according to preset parameters to maintain an ideal curing environment.

[0023] In the embodiment, the curing room body 1 has a sealing door 7, through which the user can deliver the material cart loaded with the covering film into the curing chamber 11. When curing begins, the sealing door 7 is closed to ensure that the curing chamber 11 has good sealing performance.

[0024] In this embodiment, natural gas combustion heats the thermal oil in the boiler to provide a hot air source for the hot air blower 2. The thermal oil can transfer a large amount of heat energy at a relatively low pressure, thereby achieving long-term stable heating. Alternatively, the hot air source can be provided by an electric heater or other means.

[0025] By designing a larger curing room body 1 and curing chamber 11, more covering film coils can be accommodated, so that the curing device can process more covering film at one time, avoiding the problem of low production efficiency caused by oven capacity limitation, and improving production efficiency. By configuring the hot air blower 1, the heat circulation blower 4, and the temperature control system 5, the temperature control system 5 can detect the temperature in the curing chamber 11 in real time and automatically adjust the wind speed of the hot air blower 1 and the heat circulation blower 4 according to the detection results to ensure that the temperature of the curing chamber 11 is within the appropriate range, thereby improving the stability and consistency of curing.

[0026] The temperature control system 5 includes a controller 51 and several monitoring devices 52 arranged in the maturation chamber 11. The hot air duct 3 has several air outlets 34. There are at least two heat circulation fans 4, and the heat circulation fans 4 are arranged on the air outlets 34.

[0027] A monitoring device 52 is installed within the cooking chamber 11, monitoring temperatures at various locations in real time and transmitting this data to the controller 51. The controller 51 receives temperature data from the monitoring device 52 and automatically adjusts the operating conditions of the hot air blower 2 and the heat circulation blower 4 according to preset temperature parameters. The air outlets 34 are located on the hot air duct 3. By installing the heat circulation blower 4 on these outlets, the hot air from the hot air duct 3 is more evenly distributed to various areas within the cooking chamber 11. Furthermore, when the heat circulation blower 4 responds to speed adjustments from the controller 51, it can precisely control the hot air flow rate at the outlets 34, thereby achieving temperature regulation.

[0028] In this embodiment, multiple monitoring devices 52 within the cooking chamber 11 monitor temperatures at different locations in real time and transmit the collected temperature data to a controller 51, which analyzes and processes the data based on preset temperature parameters. If the controller 51 detects that the temperatures collected by multiple monitoring devices 52 within the cooking chamber 11 are below a set value, it increases the speed of the hot air blower 2, thereby increasing the hot air supply and raising the temperature within the cooking chamber 11. If the controller 51 detects that the temperature collected by a single monitoring device 52 within the cooking chamber 11 is above or below a set value, it adjusts the speed of the heat circulation fan 4 near that monitoring device 52. If the temperature collected by that monitoring device 52 is low, the controller 51 increases the speed of the heat circulation fan 4 in that area to enhance hot air circulation. If the temperature collected by that monitoring device 52 is high, the controller 51 decreases the speed of the heat circulation fan 4 in that area to reduce hot air circulation. By continuously monitoring the data from the temperature sensors 52, the controller 51 ensures a uniform temperature distribution throughout the cooking chamber 11 and prevents localized temperatures from being too high or too low.

[0029] In the embodiment, the preset temperature parameter of the temperature control system 5 is 50° C. By curing the cover film at a constant temperature of 50° C., the glue overflow during the pressing process of the cover film and the copper clad laminate can be well controlled.

[0030] The hot air duct 3 includes a main air duct 31 connected to the hot air blower 2. The main air duct 31 is connected to at least two distribution pipes 32 extending into the cooking chamber 11. The distribution pipes 32 are all connected to the same diffuse air pipe 33. The air outlet 34 is provided on the diffuse air pipe 33.

[0031] The main air duct 31 serves as the backbone of the hot air duct 3. It disperses the hot air into the maturation chamber 11 through the distribution pipe 32, the air dispersion pipe 33 and the air outlet 34, thereby achieving efficient transmission and uniform distribution of the hot air, ensuring uniform temperature in the maturation chamber 11, and improving production efficiency and product quality.

[0032] The air dispersing pipe 33 is arranged along the length direction of the cooking chamber 11 .

[0033] By distributing the air duct 33 along the length direction of the cooking chamber 11 , it is possible to ensure that the temperature in the cooking chamber 11 is evenly distributed from one end to the other, thereby reducing the temperature gradient.

[0034] In the embodiment, the monitoring device 52 includes a temperature sensor, which monitors the temperature in the curing chamber 11 through the temperature sensor, and adjusts the working status of the hot air blower 2 and the heat circulation blower 4 through the controller 51 to ensure that the temperature in the curing chamber 11 is evenly distributed, thereby improving the curing effect of the covering film and the product quality.

[0035] The temperature control system 5 also includes a memory capable of recording and storing ripening process data.

[0036] The curing process data is recorded and stored in the memory, and data analysis and processing are carried out to provide a basis for equipment operation and quality management.

[0037] The aging device further comprises a safety monitoring system 6 .

[0038] The safety monitoring system 6 monitors the material status in the curing room to ensure production safety during the curing process.

[0039] The safety monitoring system 6 includes a monitoring camera 61 arranged in the curing chamber 11 , and a display screen 62 electrically connected to the monitoring camera 61 is provided on the outer wall of the curing room main body 1 .

[0040] A monitoring camera 61 is installed within the maturation chamber 11 to monitor the material status and environmental conditions in real time. A display screen 62 is mounted on the outer wall of the maturation chamber main body 1 and is electrically connected to the monitoring camera 61. It displays real-time images of the maturation chamber 11. This allows operators to promptly identify and address potential safety hazards, improving production safety and quality control.

[0041] There are other implementation methods for the safety monitoring system 6, such as using various sensors such as smoke sensors to monitor the safety situation in the cooking chamber 11 to ensure the safety of the production process.

[0042] The inner wall of the curing room body 1 is provided with a heat-insulating layer 13 .

[0043] The heat-insulating layer 13 is installed on the inner wall of the main body 1 of the curing room to reduce the heat exchange between the inside and outside of the curing chamber 11 and to maintain the temperature inside the chamber stable.

[0044] The material of the heat-insulating layer 13 includes heat-insulating cotton.

[0045] The low thermal conductivity of the insulation cotton can effectively prevent the conduction of heat and reduce heat loss. At the same time, the insulation cotton has good flame retardant properties, which can delay the spread of fire in the event of a fire and improve safety.

[0046] In the embodiment, the area within the curing chamber 11 can accommodate 15 material carts and 135 rolls of covering film for simultaneous curing, thereby solving the problem that the covering film cannot enter the curing process on the day it is coated due to limited space in the oven, thus delaying the production cycle of the covering film due to limited space in the oven.

Claims

1. A flexible circuit board covering film room type curing device, characterized in that: The invention comprises a curing room main body (1) and a hot air blower (2), wherein the curing room main body (1) is provided with a curing chamber (11) and an exhaust port (12) connected to the curing chamber (11), the hot air blower (2) is connected to a hot air duct (3) capable of supplying hot air from the hot air blower (2) to the curing chamber (11), a heat circulation blower (4) is provided in the curing chamber (11), and the curing device further comprises a temperature control system (5) capable of detecting the temperature in the curing chamber (11) and controlling the wind speed of the hot air blower (2) and the heat circulation blower (4).

2. A flexible circuit board covering film room-type curing device according to claim 1, characterized in that: The temperature control system (5) includes a controller (51) and a plurality of monitoring devices (52) arranged in the cooking chamber (11); the hot air duct (3) has a plurality of air outlets (34); the number of the heat circulation fans (4) is at least two, and the heat circulation fans (4) are arranged on the air outlets (34).

3. A flexible circuit board covering film room-type curing device according to claim 2, characterized in that: The hot air duct (3) comprises a main air duct (31) connected to the hot air blower (2); the main air duct (31) is connected to at least two distribution pipes (32) extending into the cooking chamber (11); the distribution pipes (32) are all connected to the same diffuse air pipe (33); and the air outlet (34) is provided on the diffuse air pipe (33).

4. A flexible circuit board covering film room-type curing device according to claim 3, characterized in that: The air dispersing pipe (33) is arranged along the length direction of the cooking chamber (11).

5. The flexible circuit board covering film room-type curing device according to claim 2, characterized in that: The monitoring device (52) includes a temperature sensor.

6. The flexible circuit board covering film room-type curing device according to claim 2, characterized in that: The temperature control system (5) also includes a memory capable of recording and storing ripening process data.

7. The flexible circuit board covering film room-type curing device according to claim 1, characterized in that: The aging device also includes a safety monitoring system (6).

8. The flexible circuit board covering film room-type curing device according to claim 7, characterized in that: The safety monitoring system (6) includes a monitoring camera (61) arranged in the curing chamber (11), and the outer wall of the curing room main body (1) is provided with a display screen (62) electrically connected to the monitoring camera (61).

9. The flexible circuit board covering film room-type curing device according to claim 1, characterized in that: The inner side wall of the curing room main body (1) is provided with a heat-insulating layer (13).

10. The flexible circuit board covering film room-type curing device according to claim 9, characterized in that: The material of the thermal insulation layer (13) includes thermal insulation cotton.

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