A heating device for a copper foil substrate

Abstract

This utility model discloses a copper foil substrate heating device for copper foil processing equipment, aiming to solve the problems of easy bending and uneven heating of copper foil caused by unilateral heating in existing devices. The device includes two identical heating components arranged symmetrically at the center, which clamp the copper foil substrate. Each heating component includes a clamping plate, an S-shaped heating copper strip embedded in a groove in the plate, and a control component fixed to the end of the plate. The control component has a temperature display screen, an external power interface, and an internal temperature control circuit board. The heating copper strip is electrically connected to the temperature control circuit board. The clamping plate has evenly distributed mounting holes along its edge, and the two components are fixed together by bolts with adjustable spacing. The control component is engaged with the plate via a positioning boss groove. This device achieves simultaneous and uniform heating of both sides of the copper foil, can adapt to copper foils of different thicknesses, effectively prevents bending during heating, and improves processing accuracy and stability.

Description

Technical Field

[0001] This utility model provides a heating device, and particularly relates to a heating device for copper foil substrate. Background Technology

[0002] The copper foil substrate heating device is used to regulate the temperature of copper foil substrates to meet the temperature requirements of subsequent processing processes such as lamination and coating. Its core function is to ensure the stability of the copper foil in subsequent processes by uniformly and stably heating the copper foil substrate, and to avoid affecting product quality due to uneven temperature or heat deformation.

[0003] Existing copper foil substrate heating devices mostly adopt a single-sided heating structure, that is, heating elements such as heating rods and heating plates are only set on one side of the copper foil, while the other side is a support or limiting component without heating function. In actual use, due to uneven heating on both sides of the copper foil, heat transfer is prone to delay or deviation. Moreover, the thermal stress generated by single-sided heating cannot be offset by symmetrical reverse stress, causing the copper foil to bend and deform easily during the heating process. At the same time, the bonding stability between the heating elements and the copper foil in existing devices is insufficient. Although some devices fix the heating components with simple bolt connections, they lack precise adjustment of the spacing between the heating components and symmetrical positioning structure, making it difficult to adapt to the stable clamping and uniform heating requirements of copper foils of different thicknesses, ultimately affecting the accuracy and quality of subsequent copper foil processing. Utility Model Content

[0004] The purpose of this invention is to overcome the defects of copper foil substrates in the prior art, such as easy bending and uneven heating, and to provide a heating device for copper foil substrates. Through the structural design of symmetrical heating and stable clamping, the device achieves uniform heating and anti-deformation effect of copper foil.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a heating device for copper foil substrate, comprising two heating components with identical structures and centrally symmetrically distributed, the two heating components being arranged opposite each other to clamp the copper foil substrate; each heating component includes a clamping plate, a heating copper strip, and a control component; the clamping plate is a rectangular insulating plate structure with an embedded groove inside, the heating copper strip being embedded in the embedded groove and extending along the length of the clamping plate; the control component is fixedly connected to one end of the clamping plate, the control component is electrically connected to the heating copper strip, the control component is provided with a temperature display screen and an external power interface; the edge area of ​​the clamping plate has several through mounting holes, the two heating components can be fixedly connected by bolts passing through the corresponding mounting holes, or can be detachably connected to the housing of the control component through the mounting holes.

[0006] Furthermore, the clamping plate is made of ceramic insulating material with a thickness of 5-10mm, which ensures both insulation safety and good thermal conductivity stability.

[0007] Furthermore, the heating copper strip is a flat, elongated structure with a width of 3-5 mm and a thickness of 1-2 mm. It is arranged in a continuous S-shape in the mounting groove along the length of the clamping plate, which can increase the heat contact area with the copper foil and improve the heating uniformity.

[0008] Furthermore, the control component includes a rectangular housing, with the temperature display screen embedded on the front of the housing for easy real-time observation of the heating temperature; the external power interface is located on the side of the housing, and a temperature control circuit board electrically connected to the heating copper strip is provided inside the housing, which can precisely control the heating temperature.

[0009] Furthermore, the mounting holes are circular through holes with a diameter of 6-8mm, and are evenly distributed along the long and short edges of the clamping plate. There are 3-4 mounting holes on each side edge to ensure connection stability.

[0010] Furthermore, the bolt structure includes a bolt and a matching nut. The bolt passes through the corresponding mounting holes of the two heating components and is threadedly connected to the nut, so that the clamping plates of the two heating components are parallel and opposite to each other and the spacing is adjustable, which can be adapted to copper foil substrates of different thicknesses.

[0011] Furthermore, the connecting surface between the outer shell of the control component and the clamping plate is provided with a positioning boss, and the clamping plate is provided with a positioning groove at the corresponding position. The positioning boss and the positioning groove are fitted and engaged to improve the connection accuracy between the control component and the clamping plate.

[0012] Furthermore, both ends of the heating copper strip extend to the connection end between the clamping plate and the control component, and are electrically connected to the temperature control circuit board inside the control component through conductive terminals to ensure stable circuit connection.

[0013] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages compared with the prior art:

[0014] A. By using two identical and centrally symmetrical heating components, the copper foil is heated from both sides simultaneously. Combined with the precise temperature control of the temperature control circuit board, the thermal stress caused by unilateral heating can be effectively avoided, thus solving the problem of copper foil bending.

[0015] B. The heating copper bars are arranged in an S-shape to increase the heating area, improve heating uniformity, and ensure consistent heating of the copper foil;

[0016] C. The clamping plate is fixedly connected to the bolt structure through mounting holes, and the spacing is adjustable to accommodate copper foils of different thicknesses. At the same time, the symmetrical clamping structure can apply balanced pressure to counteract the stress of heating deformation.

[0017] D. The control components integrate temperature display and power interface, making operation convenient. The matching design of the positioning boss and groove improves the connection accuracy and stability of the overall structure.

[0018] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a heating device for copper foil substrate according to the present invention.

[0020] Figure 2 This is an exploded view of a heating device for copper foil substrate according to the present invention;

[0021] Figure 3 This is a partially enlarged view of the heating strip inside the clamping plate of a heating device for copper foil substrate according to this utility model.

[0022] As shown in the figure:

[0023] 1. Heating component; 2. Clamping plate; 3. Heating copper strip; 4. Control component; 5. Temperature display screen; 6. External power interface; 7. Mounting holes. Detailed Implementation

[0024] 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.

[0025] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] like Figure 1 and Figure 2 As shown, a heating device for copper foil substrate includes two identical heating components 1 arranged symmetrically at the center. The two heating components 1 are arranged opposite each other to clamp the copper foil substrate. Each heating component 1 consists of a clamping plate 2, a heating copper strip 3, and a control component 4. The control component 4 is fixed to one end of the clamping plate 2 and electrically connected to the heating copper strip 3. The control component 4 is equipped with a temperature display screen 5 and an external power interface 6. The control component 4 includes a rectangular shell. The temperature display screen 5 is embedded in the front of the shell, and the external power interface 6 is located on the side of the shell. The shell contains a temperature control circuit board electrically connected to the heating copper strip 3. At the same time, both ends of the heating copper strip 3 extend to the connection end between the clamping plate 2 and the control component 4, and are electrically connected to the temperature control circuit board inside the control component 4 through conductive terminals.

[0028] In this implementation, two heating components 1 are centrally symmetrically distributed and arranged opposite each other. Their clamping plates 2 are located on both sides of the copper foil substrate. Heating copper strips 3 are embedded within the clamping plates 2 and face the copper foil substrate. A control component 4 is fixed to the end of the clamping plates 2 to form an integral structure. The heating copper strips 3 form a closed circuit with the temperature control circuit board within the control component 4 via conductive terminals. An external power supply provides power to the entire device through an external power interface 6. The temperature display screen 5 displays the heating temperature detected by the temperature control circuit board in real time. From the perspective of implementation key points and innovation, the beneficial effects of the above structural combination are as follows: The centrally symmetrical distribution of two identical heating components 1 achieves simultaneous heating of both sides of the copper foil substrate, avoiding the uneven heating problem caused by existing single-sided heating; the temperature control circuit board within the control component 4 is electrically connected to the heating copper strips 3, allowing precise control to maintain consistent heating temperatures on both sides. Combined with the real-time monitoring of the temperature display screen 5, this further ensures the stability of the heating process; the connection of the heating copper strips 3 to the temperature control circuit board via conductive terminals ensures the reliability of the circuit connection and stabilizes heat output; and the external power interface 6 facilitates connection between the device and an external power supply system, improving ease of use. In solving the existing problems, each structure plays a key role: the symmetrical distribution of heating components 1 provides a balanced clamping force and heating source for the copper foil, offsetting the unidirectional stress generated by heating and preventing the copper foil from bending; the clamping plate 2 serves as the carrier for the heating copper strip 3, ensuring the stability of the heating element position and avoiding local overheating caused by the displacement of the heating element; the control component 4 achieves precise temperature control through the temperature control circuit board, solving the problem of inaccurate temperature regulation in existing devices; the temperature display screen 5 allows operators to monitor the heating status in real time, adjust parameters in a timely manner, and ensure the heating effect; the external power interface 6 ensures the stability of the device's power supply, providing a foundation for continuous and uniform heating.

[0029] like Figure 2 and Figure 3As shown, the clamping plate 2 is a rectangular insulating plate structure made of ceramic insulating material with a thickness of 5-10mm. It has an internal mounting groove into which a heating copper strip 3 is embedded and extends along the length of the clamping plate 2. The heating copper strip 3 is a flat, elongated structure with a width of 3-5mm and a thickness of 1-2mm, and is arranged in a continuous S-shape within the mounting groove along the length of the clamping plate 2. Several through mounting holes 7 are provided on the edge of the clamping plate 2. These mounting holes 7 are circular through holes with a diameter of 6-8mm, and are evenly distributed along the long and short edges of the clamping plate 2. The cloth has 3-4 mounting holes 7 on each side edge. The two heating components 1 can be fixed together by bolts passing through the corresponding mounting holes 7. The bolt structure includes bolts and matching nuts. After the bolts pass through the corresponding mounting holes 7 of the two heating components 1, they are threaded together with the nuts, so that the clamping plates 2 of the two heating components 1 are parallel and opposite each other and the spacing is adjustable. In addition, the connecting surface between the outer shell of the control component 4 and the clamping plate 2 is provided with a positioning boss, and the clamping plate 2 is provided with a positioning groove at the corresponding position. The positioning boss and the positioning groove are fitted and engaged. The clamping plate 2 can also be detachably connected to the outer shell of the control component 4 through the mounting holes 7.

[0030] In this embodiment, the clamping plate 2 serves as the core load-bearing component. Its rectangular insulating structure provides a stable mounting base for the heating copper strip 3. The ceramic material properties ensure that it possesses both insulation safety and high-temperature stability at a thickness of 5-10mm. The heating copper strip 3 is a flat, elongated strip, 3-5mm wide and 1-2mm thick, embedded in the mounting groove of the clamping plate 2, and arranged in a continuous S-shape along its length, forming a tightly fitting integral structure with the clamping plate 2. The mounting holes 7 serve as connecting hubs. 3-4 circular through holes with a diameter of 6-8mm are evenly distributed on each side of the long and short edges of the clamping plate 2. Through the bolt structure, bolts and matching nuts pass through the corresponding mounting holes 7, enabling the clamping plates 2 of the two heating components 1 to be fixed in parallel relative to each other. The spacing can be flexibly changed by adjusting the threads. The housing of the control component 4 and the clamping plate 2 are precisely positioned by the matching snap-fit ​​of the positioning boss and the positioning groove. At the same time, the clamping plate 2 can be detachably connected to the housing of the control component 4 through the mounting holes 7, improving the flexibility of structural assembly.

[0031] From the perspective of implementation points and innovation, the above-mentioned structural combination has significant beneficial effects: the selection of ceramic material for clamping plate 2 not only solves the potential electrical conductivity problem of metal materials, but also avoids deformation during heating that could affect the clamping accuracy of copper foil due to its good thermal stability; the S-shaped arrangement design of heating copper strips 3 significantly increases the effective heat-receiving contact area with copper foil compared to straight heating elements, making the heat distribution more uniform and reducing stress deformation of copper foil caused by local temperature differences at the source; the uniform distribution of mounting holes 7 and the bolt structure not only achieve a stable connection between the two heating components 1, but also adapt to copper foil substrates of different thicknesses through adjustable spacing, solving the problem of limited adaptability of traditional devices; the snap-fit ​​structure of positioning bosses and grooves ensures the coaxiality of the installation of control component 4 and clamping plate 2, avoiding heating position offset due to assembly deviation. In addressing the existing problems, the various structures work synergistically: the insulation and rigidity of the clamping plate 2 provide a stable clamping reference for the copper foil, preventing additional stress from being transmitted due to carrier deformation during heating; the uniform heating of the S-shaped heating copper strip 3 directly improves the problem of unilateral heating or local overheating, reducing the causes of copper foil bending; the adjustable clamping spacing formed by the mounting hole 7 and the bolt structure ensures that copper foils of different thicknesses can obtain a balanced clamping force, offsetting the deformation stress generated by heating; and the positioning structure further ensures the balance of heating and clamping by improving the overall assembly accuracy and ensuring the symmetry and consistency of the heating components 1 on both sides.

[0032] In practical use, this device needs to be used in conjunction with existing copper foil substrate conveying guide rollers to achieve continuous and stable feeding of copper foil. The guide rollers can be made of chrome-plated carbon steel to reduce scratches on the copper foil surface. A tension controller is also required to adjust the tension during copper foil conveying to prevent wrinkles caused by uneven tension. The ceramic insulation material used for the clamping plate can be alumina ceramic, which has excellent insulation performance and thermal stability. The heating copper strip is made of T2 copper, which has good thermal and electrical conductivity. The entire device needs to be mounted on an existing stainless steel frame, and the frame is connected and fixed to the mounting holes on the edge of the clamping plate with bolts to ensure the device's operation. For stable operation, the external power supply needs to be connected to an existing AC regulated power supply to ensure stable input voltage and avoid voltage fluctuations affecting the heat output of the heating copper strip. The temperature control circuit board of the control component needs to be used with an existing platinum resistance temperature sensor to achieve accurate acquisition of the heating temperature. This sensor can be installed on the clamping plate near the heating copper strip. After the copper foil is heated, it needs to be cooled down quickly by an existing cooling fan. The cooling fan can be an axial flow fan and the air outlet should be directly facing the output direction of the copper foil. At the same time, an existing photoelectric sensor can be set at the copper foil feeding end to detect the position of the copper foil to ensure that the copper foil can accurately enter the clamping area between the two heating components.

[0033] Specifically, when installing this device on the production line, it can first be initially positioned using existing positioning pins and pre-set positioning holes on the production line workbench. Then, high-strength bolts are used to pass through the mounting holes on the edge of the clamping plate and tighten them with the pre-embedded nuts on the bottom of the workbench to achieve fixation. After installation, the output of the external AC regulated power supply is connected to the external power interface of the control component through a copper core wire. At the same time, the existing PLC control system and the control component are connected through a communication cable to achieve centralized control. Before use, the operator sets the heating temperature range and heating time through the touch screen of the PLC control system. Then, the existing copper foil surface cleaning device is started. After the polyurethane cleaning roller of this device rolls and removes dust from the copper foil surface, the copper foil is conveyed between the two heating components by the conveying guide roller. At this time, the photoelectric sensor detects the copper foil and sends a signal to the PLC control system. The system drives the stepper motor of the guide roller to adjust the speed so that the copper foil enters the clamping area at a uniform speed. At the same time, the height of the guide roller is finely adjusted by the lifting adjustment mechanism to ensure that the copper foil is in close contact with the clamping plate. The heating surfaces of the copper foil are parallel and in contact with each other. During the heating process, the platinum resistance temperature sensor transmits the collected temperature signal to the temperature control circuit board in real time. If the temperature deviates from the set value, the temperature control circuit board automatically adjusts the current of the heating copper strip. At the same time, the infrared thermometer performs secondary monitoring of the copper foil surface temperature and feeds the data back to the PLC system to form dual temperature control. When the copper foil deviation is detected, the photoelectric sensor triggers the fault alarm system to issue an audible and visual alarm, and the production line stops operating. After heating, the copper foil enters the cooling area. The frequency converter of the existing technology adjusts the wind speed of the cooling fan according to the copper foil thickness and heating temperature, so that the copper foil temperature drops quickly to the process requirement range. Finally, it is wound up by the winding machine. The tension control system of the winding machine is linked with the tension controller of the production line to maintain the tension stability of the copper foil during the winding process. Throughout the production process, the operator can view the device operating parameters and copper foil heating status in real time through the monitoring screen of the production line. The bolt connection parts of the device are checked regularly using existing maintenance tools to ensure long-term stable operation of the device.

[0034] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. A heating device for copper foil substrate, characterized in that, It includes two heating components (1) with completely identical structures and centrally symmetrical distribution, and the two heating components (1) are arranged opposite to each other to clamp the copper foil substrate; Each of the heating components (1) includes a clamping plate (2), a heating copper strip (3), and a control component (4); The clamping plate (2) is a rectangular insulating plate structure with an insert groove inside. The heating copper strip (3) is embedded in the insert groove and extends along the length of the clamping plate (2). The control component (4) is fixed to one side end of the clamping plate (2), the control component (4) is electrically connected to the heating copper strip (3), and the control component (4) is provided with a temperature display screen (5) and an external power interface (6). The edge area of ​​the clamping plate (2) is provided with several through mounting holes (7). The two heating components (1) can be fixedly connected by bolts inserted into the corresponding mounting holes (7), or can be detachably connected to the housing of the control component (4) through the mounting holes (7).

2. The heating device for copper foil substrate according to claim 1, characterized in that, The clamping plate (2) is made of ceramic insulating material with a thickness of 5-10mm.

3. The heating device for copper foil substrate according to claim 1, characterized in that, The heating copper strip (3) is a flat, long strip structure with a width of 3-5 mm and a thickness of 1-2 mm. It is arranged in a continuous S-shape in the mounting groove along the length of the clamping plate (2).

4. The heating device for copper foil substrate according to claim 1, characterized in that, The control component (4) includes a rectangular housing, the temperature display screen (5) is embedded in the front of the housing, the external power interface (6) is located on the side of the housing, and the housing is equipped with a temperature control circuit board that is electrically connected to the heating copper strip (3).

5. The heating device for copper foil substrate according to claim 1, characterized in that, The mounting holes (7) are circular through holes with a diameter of 6-8 mm, and are evenly distributed along the long and short edges of the clamping plate (2), with 3-4 mounting holes (7) on each side edge.

6. The heating device for copper foil substrate according to claim 1, characterized in that, The bolt structure includes a bolt and a matching nut. The bolt passes through the corresponding mounting holes (7) of the two heating components (1) and is threadedly connected to the nut, so that the clamping plates (2) of the two heating components (1) are parallel and opposite to each other and the spacing is adjustable.

7. The heating device for copper foil substrate according to claim 4, characterized in that, The control component (4) has a positioning boss on the connecting surface between its outer shell and the clamping plate (2), and the clamping plate (2) has a positioning groove at the corresponding position. The positioning boss and the positioning groove are fitted and engaged.

8. The heating device for copper foil substrate according to claim 1, characterized in that, The two ends of the heating copper strip (3) extend to the connection end between the clamping plate (2) and the control component (4), and are electrically connected to the temperature control circuit board inside the control component (4) through conductive terminals.

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