A composite heating device

Abstract

The utility model relates to hot pressing device technical field, specifically disclose a composite heating device. Wherein: first roller structure and second roller structure are set in turn along the direction of conveyance, the second roller structure can heat the material that revolves on it, first roller structure below is provided with the air heating device for heating the material, second roller structure includes metal roller and the heat conduction device that utilizes heat conduction medium to heat the metal roller, the air heating device includes the air supply structure that sets along the axial direction of first roller structure, is used to the air blower of air supply structure place blows air and is used for the heat exchanger that air heating, the utility model discloses through the air heating device and heat conduction device, adapt to the transmission heating of different material of copper clad plate product, and the flexibility is high, reduces production cost.

Description

Technical Field

[0001] This utility model relates to the field of hot pressing device technology, and in particular to a composite heating device. Background Technology

[0002] Flexible copper-clad laminates (CCLs) are a key material in electronics manufacturing, used in the production of circuit boards for electronic devices such as smartphones and tablets. Preheating before lamination is a crucial step in CCL processing. Traditional heating methods primarily use rollers, but rollers are prone to overheating and have slow temperature regulation response. This can cause wrinkling of the film during transport, affecting subsequent lamination and molding. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a composite heating device that, by separately configuring a fan-heating device and a heat-conducting device, adapts to the heat transfer of different materials in copper-clad laminate products, offering high flexibility and reducing production costs.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A composite heating device includes: a first roller structure and a second roller structure arranged sequentially along a conveying direction, wherein the second roller structure can heat the material rotating thereon, and a wind-heating device for heating the material is provided below the first roller structure.

[0006] The second roller structure includes a metal roller and a heat-conducting device for heating the metal roller using a heat-conducting medium; the air-heating device includes an air supply structure arranged along the axial direction of the first roller structure, a fan for blowing air to the air supply structure, and a heat exchanger for heating the air.

[0007] According to some embodiments of the present invention, the air supply structure includes a plurality of elongated air curtain nozzles, and each of the air curtain nozzles is evenly distributed along the axial direction of the first roller structure.

[0008] According to some embodiments of the present invention, the air curtain nozzles are arranged in multiple rows at intervals along the conveying direction, and the air outlets of the air curtain nozzles in each row are radially distributed along the first roller structure.

[0009] According to some embodiments of the present invention, the air supply structure includes a plurality of rotatably adjustable louvers.

[0010] According to some embodiments of the present invention, the air-heating device further includes a temperature sensor disposed below the first roller structure.

[0011] According to some embodiments of the present invention, the metal roller is a hollow shaft, and a first chamber for supplying heat-conducting medium is provided inside the metal roller. Hollow rotating shafts are connected to both ends of the metal roller. A second chamber is formed by the end of the hollow rotating shaft and the end of the metal roller. A first through hole communicating with the second chamber is provided inside the hollow rotating shaft, and a second through hole communicating with the first chamber and the second chamber is provided at the end of the metal roller.

[0012] According to some embodiments of the present invention, the heat-conducting device includes a pipe structure connected to the hollow rotating shaft, a pump body for circulating and transporting the heat-conducting medium, and a heater for heating the heat-conducting medium.

[0013] According to some embodiments of the present invention, the first roller structure is disposed below the second roller structure. The first roller structure rotates counterclockwise, and the second roller structure rotates clockwise. The material first moves downward along the bottom of the first roller structure and then upward, and then moves downward along the top of the second roller structure, forming an S-shaped conveying path.

[0014] This utility model has at least the following beneficial effects:

[0015] The air-heating device can uniformly heat temperature-sensitive materials, preventing wrinkling and improving yield. The metal rollers, combined with the heat-conducting device, can efficiently heat materials such as copper plates, meeting diverse needs and offering strong versatility. The heat-conducting device uses a heat-conducting medium to heat the metal rollers, ensuring uniform heating, high efficiency, and precise temperature control, guaranteeing a stable surface temperature of the metal rollers and providing a stable heating environment for the materials. The heating device can flexibly adapt to different heating materials, reducing the need for multiple sets of equipment and lowering production costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the second roller structure according to an embodiment of the present invention. Detailed Implementation

[0018] This invention provides the following description with reference to the accompanying drawings to aid in a comprehensive understanding of the various embodiments of the invention as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but these details should be considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the invention.

[0019] In the description of this utility model, the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] It should be understood that when one element (e.g., the first element) is “connected” to another element (e.g., the second element), the element may be directly connected to the other element, or there may be an intermediary element (e.g., the third element) between the element and the other element.

[0021] An embodiment of this utility model provides a composite heating device, such as... Figure 1-2 As shown, it includes: a first roller structure 1 and a second roller structure 2 arranged sequentially along the conveying direction. The second roller structure 2 can heat the material 4 that is wrapped around it. A hot air device 3 for heating the material 4 is provided below the first roller structure 1.

[0022] The second roller structure 2 includes a metal roller 201 and a heat-conducting device for heating the metal roller 201 using a heat-conducting medium 202; the air-heating device 3 includes an air supply structure 301 arranged along the axial direction of the first roller structure 1, a fan for blowing air to the air supply structure 301, and a heat exchanger for heating the air.

[0023] The installation of the hot air device 3 enables uniform heating of temperature-sensitive materials 4, such as films, using hot air. The hot air blowing temperature adjustment response is fast, and the heating method is gentle, effectively avoiding problems such as film wrinkling caused by excessively high temperatures of the metal roller 201. Hot air heating is gentler and easier to control than metal roller 201 heating, thus ensuring the forming quality of material 4 in subsequent pressing and other processes, and improving product yield. Secondly, the metal roller 201 in the second roller structure 2, in conjunction with a heat-conducting device, can efficiently heat metal materials 4, such as copper plates, meeting the heating requirements of different materials 4. The first roller structure 1 and the second roller structure 2 can also be configured to rotate different types of materials 4, enhancing the versatility and applicability of the device. The first roller structure 1 and the second roller structure 2 can rotate via a motor with gear transmission or belt transmission, ensuring smooth material transport. This composite heating device, which combines hot air with heat-conducting metal rollers 201, achieves precise heating and efficient transfer of different materials 4 through the rational configuration of different heating methods and structures. It has high versatility and improves the production quality and efficiency of similar processes such as copper-clad laminate processing.

[0024] The heat transfer device can use hot oil circulation heating, electromagnetic heat transfer oil, etc. to heat the heat transfer medium 202 to heat the metal roller 201. The heat transfer medium 202 makes the metal roller 201 heat evenly and with high thermal efficiency through heat conduction, which can ensure the stability and uniformity of the surface temperature of the metal roller 201, thereby providing a stable heating environment for the material 4.

[0025] The air-heating device 3 is a single integrated unit, meaning the fan, heat exchanger, and air supply structure 301 are all embedded within the same housing, allowing for easy adjustment of their positions according to the location of the material 4. The air supply structure 301 is positioned along the axial direction of the first roller structure 1, ensuring that hot air is evenly distributed to the material 4, preventing uneven heating and maintaining the flatness of the material 4. The fan provides strong airflow to the air supply structure 301, ensuring that hot air fully covers the surface of the material 4 and improving heating efficiency. The heat exchanger heats the air to the required temperature while maintaining its stability, ensuring that the material 4 receives uniform and stable hot air throughout the entire conveying process. The air supply method is gentle and effective, preventing high-temperature deformation of the material 4, and offers high practicality and flexibility.

[0026] In some embodiments, such as Figure 1 As shown, the air supply structure 301 includes multiple elongated air curtain nozzles 302, and each air curtain nozzle 302 is evenly distributed along the axial direction of the first roller structure 1.

[0027] The elongated air curtain nozzle 302 generates a concentrated and highly directional hot airflow, allowing the hot air to be blown onto the surface of the material 4 at a high speed and with a narrow airflow width, thereby achieving rapid and uniform heating of the material 4. Secondly, the air curtain nozzle 302 is uniformly distributed along the axial direction of the first roller structure 1, ensuring uniform coverage of the hot air across the entire width of the material 4. This avoids inconsistent quality of the material 4 due to insufficient or excessive heating in certain areas, making it particularly suitable for heating wide-width materials 4.

[0028] Furthermore, such as Figure 1 As shown, the air curtain nozzles 302 are arranged in multiple rows along the conveying direction, and the air outlets of each row of air curtain nozzles 302 are radially distributed along the first roller structure 1.

[0029] The arrangement of multiple rows of air curtain nozzles 302 ensures that hot air forms a continuous and uniform air curtain in the material 4 conveying direction, enhancing the heating effect and uniformity of the air-heating device 3 and avoiding inconsistent heating of the material 4 caused by uneven airflow or heating blind spots that may occur with a single row of nozzles. Each row of nozzles is radially distributed along the first roller structure 1, and the air blown out of the nozzles is perpendicular to the outer periphery of the roller, allowing the hot air to directly impact the surface of the material 4 at the optimal angle, maximizing the heat exchange efficiency between the hot air and the material 4, and ensuring that the material 4 is always in an ideal heating environment during the conveying process. This structure not only improves the heating effect but also enhances the stability and reliability of the entire device.

[0030] In some embodiments, the air supply structure 301 includes a plurality of rotatably adjustable louvers.

[0031] Adjustable louvers allow for flexible control of the direction and flow of hot air, enabling hot air to be directed to different areas of material 4, thus achieving uniform heating of material 4. Adjustable louvers are inexpensive, economical, and reduce production costs.

[0032] Furthermore, such as Figure 1 As shown, the air-heating device 3 also includes a temperature sensor 303 disposed below the first roller structure 1.

[0033] Indoor temperatures vary with the seasons, and there is a certain distance between the air supply structure 301 and the material 4. In cold weather, significant heat loss can occur. The temperature sensor 303 is located below the first roller structure 1, close to the material 4, and can monitor the temperature of the material 4 below the first roller structure 1 in real time, providing accurate temperature feedback data to the control system. Based on this data, the control system can automatically adjust the fan speed, the heating power of the heat exchanger, and the airflow of the air curtain nozzles 302, thereby achieving precise control of the hot air temperature and flow rate. This control method is existing technology and will not be elaborated upon here. Furthermore, the temperature sensor 303 enhances the safety of the entire device. When the temperature rises abnormally, the system can take timely measures to prevent equipment damage or damage to the material 4.

[0034] In some embodiments, such as Figure 1-2 As shown, the metal roller 201 is a hollow shaft. A first chamber 203 for supplying heat-conducting medium 202 is provided inside the metal roller 201. Hollow rotating shafts 204 are connected to both ends of the metal roller 201. A second chamber 205 is formed by the end of the hollow rotating shaft 204 and the end of the metal roller 201. A first through hole 206 communicating with the second chamber 205 is provided inside the hollow rotating shaft 204. A second through hole 207 communicating with the first chamber 203 and the second chamber 205 is provided at the end of the metal roller 201.

[0035] The heat-conducting device heats the metal roller 201 by heating a heat-conducting medium 202, such as heat-conducting oil. The metal roller 201 is hollow and has a first chamber 203 for the flow of the heat-conducting medium 202. Since the material 4 rotates around the outer periphery of the metal roller 201, heating only the outer periphery of the metal roller 201 is sufficient to heat the material 4. Therefore, the first chamber 203 is not actually filled with the entire interior of the metal roller 201. Instead, an inner cylinder with a diameter smaller than the metal roller 201 is provided on the inner wall of the metal roller 201. The outer wall of the inner cylinder and the inner wall of the metal roller 201 form the first chamber 203, allowing the heat-conducting medium 202 to circulate smoothly inside the roller, thereby achieving uniform heating of the metal roller 201. The hollow rotating shafts 204 at both ends are connected to the ends of the metal roller 201, driving the hollow rotating shafts 204 to rotate. At the same time, the hollow part can allow the heat-conducting medium 202 to flow in from the outside. A second chamber 205 is formed at the connection between the hollow rotating shaft 204 and the metal roller 201. The hollow rotating shaft 204 is connected to the first chamber 203 by providing a first through hole 206 and a second through hole 207, which facilitates the entry and exit of the external heat transfer medium 202. This makes the entire heat transfer medium 202 circulation system more compact and reasonable, and easier to install and maintain.

[0036] Furthermore, the heat transfer device includes a pipe structure connected to the hollow rotating shaft 204, a pump body for circulating and transporting the heat transfer medium 202, and a heater for heating the heat transfer medium 202.

[0037] The pipe structure connected to the hollow rotating shaft 204 (not shown in the diagram), along with a sealed bearing to prevent oil leakage, connects to the pipe structure at the very end of the second roller structure 2. This connection does not obstruct the rotation of the metal roller 201, ensuring smooth circulation of the heat transfer medium 202 between the heater, pump body, and metal roller 201, forming a closed and efficient heat transfer system. The pipe connection method is existing technology and will not be described in detail here. The heat transfer device is located at the end of the hollow rotating shaft 204, without obstructing the conveying of material 4. The pump body provides power for the circulation of the heat transfer medium 202, ensuring that the heated liquid can be quickly and evenly delivered into the metal roller 201, thereby achieving continuous heating of the metal roller 201. The heater is responsible for heating the heat transfer medium 202 to the required temperature, and its precise temperature control ensures the stability and uniformity of the surface temperature of the metal roller 201. After the heat transfer oil is heated to a suitable temperature by the heater, it is pumped by the pump body under pressure and enters the hollow rotating shaft 204 along the pipeline structure. It then enters the second chamber 205 along the first through hole 206, and then enters the first chamber 203 along the second through hole 207. The heat transfer oil is transferred from one end of the metal roller 201 to the other end, thereby heating the entire metal roller 201. Finally, the heat transfer oil is sent out from the second through hole 207 at the other end of the first chamber 203 back to the hollow rotating shaft 204, and finally returned to the pipeline structure and the heater to form a complete loop.

[0038] In some embodiments, such as Figure 1 As shown, the first roller structure 1 is located below the second roller structure 2. The first roller structure 1 rotates counterclockwise, and the second roller structure 2 rotates clockwise. The material 4 first moves downward along the bottom of the first roller structure 1 and then upward, and then moves downward along the top of the second roller structure 2, forming an S-shaped conveying path.

[0039] The first roller structure 1 and the second roller structure 2 are arranged in a vertically layered layout. In practice, the first roller structure 1 is located diagonally below the second roller structure 2, and there is a horizontal gap between them. The first roller structure 1 rotates counterclockwise, while the second roller structure 2 is located above and rotates clockwise. During the conveying process, the material 4 first passes downwards around the bottom of the first roller structure 1, and then upwards around the top of the second roller structure 2, forming an "S"-shaped conveying path. The design of the rotation direction and the material 4 conveying path enables the material 4 to form a stable tension state between the two rollers, effectively avoiding slackness or wrinkling of the material 4 during the conveying process, ensuring the flatness of the material 4 and the stability of the conveying, which is especially suitable for materials 4 such as films and copper foils that have high flatness requirements. Secondly, the layered layout and relative rotation direction of the first roller structure 1 and the second roller structure 2 allow the material 4 to receive heating from the air-heating device 3 below when passing through the first roller structure 1. Meanwhile, the second roller structure 2, through the circulating heating of its internal heat-conducting medium 202, ensures uniform heating both upwards and downwards during rotation. This installation method facilitates the installation of the air-heating device 3, allowing it to be placed directly on the ground to heat the material 4. This reduces interference with other equipment and lowers installation difficulty, enabling effective heating and transfer of the material 4 within a limited space and reducing the equipment's footprint.

[0040] The terms and words used in the foregoing description and claims are not limited to their literal meaning, but are merely used by the applicant to enable a clear and consistent understanding of the present invention. Therefore, those skilled in the art should understand that the foregoing description of various embodiments of the present invention is for illustrative purposes only, and not intended to limit the present invention as defined by the appended claims and their equivalents.

Claims

1. A composite heating device, characterized in that, include: A first roller structure (1) and a second roller structure (2) are arranged sequentially along the conveying direction. The second roller structure (2) can heat the material (4) that is wrapped around it. A wind-heating device (3) for heating the material (4) is provided below the first roller structure (1). The second roller structure (2) includes a metal roller (201) and a heat-conducting device for heating the metal roller (201) using a heat-conducting medium (202); the air-heating device (3) includes an air supply structure (301) arranged along the axial direction of the first roller structure (1), a fan for blowing air to the air supply structure (301), and a heat exchanger for heating the air.

2. The composite heating device according to claim 1, characterized in that: The air supply structure (301) includes a plurality of elongated air curtain nozzles (302) with narrow outlets, and each of the air curtain nozzles (302) is evenly distributed along the axial direction of the first roller structure (1).

3. The composite heating device according to claim 2, characterized in that: The air curtain nozzles (302) are arranged in multiple rows along the conveying direction, and the air outlets of each row of air curtain nozzles (302) are radially distributed along the first roller structure (1).

4. The composite heating device according to claim 1, characterized in that: The air supply structure (301) includes multiple rotatably adjustable louvers.

5. A composite heating device according to any one of claims 1-4, characterized in that: The air-heating device (3) also includes a temperature sensor (303) disposed below the first roller structure (1).

6. The composite heating device according to claim 1, characterized in that: The metal roller (201) is a hollow shaft. The metal roller (201) has a first chamber (203) for supplying the heat-conducting medium (202) for flow. Both ends of the metal roller (201) are connected to hollow rotating shafts (204). The end of the hollow rotating shaft (204) and the end of the metal roller (201) form a second chamber (205). The hollow rotating shaft (204) has a first through hole (206) communicating with the second chamber (205). The end of the metal roller (201) has a second through hole (207) communicating with the first chamber (203) and the second chamber (205).

7. A composite heating device according to claim 6, characterized in that: The heat-conducting device includes a pipe structure connected to the hollow rotating shaft (204), a pump body for circulating and transporting the heat-conducting medium (202), and a heater for heating the heat-conducting medium (202).

8. The composite heating device according to claim 1, characterized in that: The first roller structure (1) is located below the second roller structure (2). The first roller structure (1) rotates counterclockwise, and the second roller structure (2) rotates clockwise. The material (4) first moves downward along the bottom of the first roller structure (1) and then moves upward along the top of the second roller structure (2), forming an S-shaped conveying path.

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