A copper foil drying device
By flexibly adjusting the inlet and outlet of the copper foil drying device and equipping it with a scraper assembly, the problem of heat dissipation in the copper foil drying device was solved, achieving efficient and low-energy copper foil drying, and improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN CHIHONG ZN & GE CO LTD
- Filing Date
- 2025-10-14
- Publication Date
- 2026-06-30
AI Technical Summary
In existing copper foil drying equipment, the gap between the copper foil and the machine body during the drying process leads to increased heat dissipation, which reduces drying efficiency and increases energy consumption.
A copper foil drying device was designed. By flexibly adjusting the size of the inlet and outlet of the drying chamber, only the minimum gap for the copper foil to pass through is maintained. It is equipped with a scraper assembly to clean water droplets on the surface of the copper foil. Combined with the drive assembly and the sealing assembly, it achieves automatic sealing and reduces the leakage of hot air.
It improves copper foil drying efficiency, reduces energy costs, ensures consistent drying quality, and enhances production efficiency and product quality stability.
Smart Images

Figure CN224434945U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of copper foil drying technology, and more particularly to a copper foil drying apparatus. Background Technology
[0002] During the production process, copper foil may have residual impurities such as copper powder on its surface. In order to ensure the quality of copper foil, it is necessary to remove the residual impurities. Currently, water washing is commonly used to treat the residual impurities on the surface of copper foil. After washing, the surface of copper foil needs to be dried.
[0003] Existing technology uses an exhaust fan at the top of the dryer body to draw air out of the body through an exhaust duct, accelerating airflow. At the same time, a hot air blower outside the body provides evaporative heat energy, which is then blown onto the copper foil by air knives distributed on the upper and lower sides of the copper foil through an air guide duct, uniformly heating and drying the copper foil temperature zone. Finally, the copper foil is cooled by an axial flow fan distributed on the upper and lower sides of the copper foil at the right end of the body.
[0004] The following defects exist in its use: When drying copper foil, gaps are generated between the copper foil and the machine body in the existing drying device. These gaps cannot be sealed, which not only increases heat loss and reduces the drying efficiency of the copper foil, but also increases energy consumption. Utility Model Content
[0005] To solve or partially solve the problems existing in the related technologies, this application provides a copper foil drying device that flexibly adjusts the size of the inlet and outlet of the drying chamber according to the width of the copper foil, retaining only the minimum gap that allows the copper foil to pass through, thereby reducing the leakage of hot air.
[0006] The first aspect of this application provides a copper foil drying apparatus, comprising: a drying chamber, a scraper assembly disposed on the input side of the drying chamber, a sealing assembly disposed on the inlet and outlet of the drying chamber, and a drive assembly disposed on the top of the sealing assembly;
[0007] The sealing assembly includes a positioning seat, a first sliding groove, a connecting plate, a first slider, a sealing seat, a limiting rod, and a second spring. The positioning seat has a first sliding groove at its top and bottom. The first slider is slidably connected in the first sliding groove. The connecting plate is fixedly installed on the inner side of the first slider, and the inner side of the connecting plate is fixedly connected to the outer side of the drying oven. The sealing seat is provided in the inner cavity of the positioning seat. The limiting rod is slidably connected inside the sealing seat. The outer side of the limiting rod is fixedly connected to the inner cavity of the positioning seat. The positioning seat and the sealing seat are connected by the second spring.
[0008] The drive assembly includes a positioning block, a drive motor, a threaded rod, a threaded sleeve, and a connecting frame. A set of positioning blocks is installed on each side of the drying box. The drive motor is fixedly installed inside the positioning block. The output end of the drive motor is connected to one end of the threaded rod, and the other end of the threaded rod is rotatably connected to another positioning block. A threaded sleeve is rotatably connected to the surface of the threaded rod, and the connecting frame is fixedly installed at the bottom of the threaded sleeve.
[0009] The wiper assembly includes a mounting frame, a pressure plate, a first wiper blade, a first spring, a positioning rod, and a second wiper blade. The positioning rod is slidably connected to the top of the mounting frame, and the positioning rod extends into the inner cavity of the frame and is connected to the pressure plate. The second wiper blade is installed at the bottom of the pressure plate. The first wiper blade and the second wiper blade are fixedly installed at the bottom of the inner cavity of the frame relative to each other. The pressure plate is fixedly connected to the top of the inner cavity of the frame based on the first spring.
[0010] The copper foil drying device also includes a winding machine, which is located on the output side of the drying chamber.
[0011] The copper foil drying device also includes a workbench, with a drying box fixedly installed at the center of the top of the workbench, and a scraper assembly located on the right side of the top of the workbench.
[0012] The technical solution provided in this application may include the following beneficial effects:
[0013] This application provides a copper foil drying device that allows for flexible adjustment of the inlet and outlet sizes of the drying chamber according to the width of the copper foil, making it adaptable to copper foils of different widths and significantly enhancing the versatility and practicality of the equipment. A scraper assembly removes water droplets from the surface of the copper foil before it enters the drying chamber, reducing the moisture content brought into the chamber and lowering the drying load. This helps maintain a stable high-temperature environment within the drying chamber, further improving the drying effect. The device maintains only the minimum gap allowing the copper foil to pass through, greatly reducing the channels for hot air leakage, improving energy utilization, reducing energy costs, and ensuring stable temperature within the drying chamber. This provides a more suitable and stable drying environment for the copper foil, contributing to consistent drying quality. The continuous and highly automated production process reduces manual intervention and labor intensity, while simultaneously improving production efficiency and product quality stability, which is beneficial for large-scale industrial production applications.
[0014] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description
[0015] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the wiper assembly structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the drive component structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the side cross-sectional structure of the sealing component of this utility model.
[0020] In the diagram: 1. Workbench; 2. Squeegee assembly; 21. Mounting frame; 22. Pressure plate; 23. First scraper; 24. First spring; 25. Positioning rod; 26. Second scraper; 3. Drying chamber; 4. Sealing assembly; 41. Positioning seat; 42. First slide groove; 43. Connecting plate; 44. First slider; 45. Sealing seat; 46. Limiting rod; 47. Second spring; 5. Drive assembly; 51. Positioning block; 52. Drive motor; 53. Threaded rod; 54. Threaded sleeve; 55. Connecting frame; 6. Winding machine. Detailed Implementation
[0021] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.
[0022] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0023] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.
[0024] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0025] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.
[0026] like Figure 1-4 A copper foil drying device is shown, including a workbench 1, a scraper assembly 2, a drying chamber 3, a sealing assembly 4, a drive assembly 5, and a winding machine 6. The winding machine 6 is fixedly installed on the left side of the top of the workbench 1, the drying chamber 3 is fixedly installed at the center of the top of the workbench 1, the scraper assembly 2 is located on the right side of the top of the workbench 1, the sealing assemblies 4 are located on both sides of the drying chamber 3, and the drive assembly 5 is located on top of the sealing assemblies 4. The scraper assembly 2 includes a mounting frame 21, a pressure plate 22, a first scraper 23, a first spring 24, a positioning rod 25, and a second scraper 26. The sealing assembly 4 includes a positioning seat 41, a first slide groove 42, a connecting plate 43, a first slider 44, a sealing seat 45, a limiting rod 46, and a second spring 47. The drive assembly 5 includes a positioning block 51, a drive motor 52, a threaded rod 53, a threaded sleeve 54, and a connecting frame 55.
[0027] The copper foil is dried by setting up a drying chamber 3. During use, the drive motor 52 is turned on according to the width of the copper foil. The drive motor 52 drives the threaded rod 53 to rotate, which causes the threaded sleeve 54 to drive the connecting frame 55 and the positioning seat 41 to move outward. Under the movement of the positioning seat 41, the inlet and outlet of the drying chamber 3 gradually open. After moving to the designated position, the positioning rod 25 is moved upward, and the copper foil enters the inner cavity of the drying chamber 3 through the mounting frame 21. The positioning rod 25 is released, and under the action of the first spring 24, the pressure plate 22 drives the second scraper 26 to move downward. Under the action of the second scraper 26 and the first scraper 23, the water droplets on the surface of the copper foil are cleaned. The inlet and outlet of the drying chamber 3 only retain a gap that allows the copper foil of the current width to pass through, minimizing the opening area and reducing heat loss. The copper foil is dried under the action of the drying chamber 3. Finally, it is wound up under the action of the winding machine 6. It has the advantages of good sealing effect and high drying efficiency. By ensuring the fit of the upper and lower scrapers, the copper foil enters the subsequent drying chamber 3 in a flat and centered position. This stable state allows the "minimum gap" adjusted by the positioning seat 41 to be more precise (avoiding the gap being forced to increase due to copper foil offset), thereby truly achieving a tight match between the drying chamber inlet and the copper foil, reducing the loss of hot air through the inlet gap from the source.
[0028] The first scraper 23 is fixedly installed at the bottom of the inner cavity of the mounting frame 21, the positioning rod 25 slides inside the mounting frame 21, and the pressure plate 22 is fixedly installed at the bottom of the positioning rod 25. The positioning rod 25 is used to limit the pressure plate 22 to prevent the pressure plate 22 from shaking during movement.
[0029] The second scraper 26 is fixedly installed at the bottom of the pressure plate 22, and the first spring 24 is fixedly installed on both sides of the top of the pressure plate 22. The top of the first spring 24 is fixedly connected to the top of the inner cavity of the mounting frame 21. The pressure plate 22 is reset by setting the first spring 24.
[0030] The bottom of the mounting frame 21 is fixedly connected to the right side of the top of the workbench 1. The positioning blocks 51 are fixedly installed on the left and right sides of the drying oven 3, with a total of four. The drive motor 52 is fixedly installed on the back of the front positioning block 51. The drive motor 52 is installed by setting the positioning block 51, and the threaded rod 53 is driven by setting the drive motor 52.
[0031] The threaded rod 53 is fixedly installed on the back of the drive motor 52. The back of the threaded rod 53 is rotatably connected to the front of the back positioning block 51 through a bearing. The threaded sleeve 54 is rotated on both sides of the surface of the threaded rod 53 through the thread. The position of the connecting frame 55 is adjusted by setting the threaded sleeve 54.
[0032] The connecting bracket 55 is fixedly installed at the bottom of the threaded sleeve 54. The first slide groove 42 is opened at the top and bottom of the positioning seat 41. The first slider 44 slides inside the first slide groove 42. The connecting plate 43 is fixedly installed on the inner side of the first slider 44. The first slider 44 is limited by the first slide groove 42, and the positioning seat 41 is limited by the first slider 44 to prevent the positioning seat 41 from shaking during movement.
[0033] The inner side of the connecting plate 43 is fixedly connected to the outer side of the drying oven 3. The sealing seat 45 is set in the inner cavity of the positioning seat 41. The limiting rod 46 slides inside the sealing seat 45. The outer side of the limiting rod 46 is fixedly connected to the inner cavity of the positioning seat 41. The first slider 44 is fixed by the connecting plate 43, and the sealing seat 45 is limited by the limiting rod 46 to prevent the sealing seat 45 from shaking during movement.
[0034] Four second springs 47 are fixedly installed in the inner cavity of the positioning seat 41 and on the outside of the sealing seat 45. The bottom of the connecting frame 55 is fixedly connected to the top of the positioning seat 41. The sealing seat 45 is reset by setting the second springs 47, thereby sealing the inlet and outlet of the drying oven 3 through the sealing seat 45.
[0035] Working principle:
[0036] Step 1: When using, turn on the drive motor 52 according to the width of the copper foil. The drive motor 52 drives the threaded rod 53 to rotate, which causes the threaded sleeve 54 to drive the connecting frame 55 and the positioning seat 41 to move outward. With the movement of the positioning seat 41, the inlet and outlet of the drying box 3 gradually open. After moving to the designated position, move the positioning rod 25 upward, and the copper foil enters the inner cavity of the drying box 3 through the mounting frame 21.
[0037] Step 2: Release the positioning rod 25. Under the action of the first spring 24, the pressure plate 22 drives the second scraper 26 to move downward. Under the action of the second scraper 26 and the first scraper 23, the water droplets on the surface of the copper foil are cleaned. Then, by controlling the size of the inlet and outlet of the drying chamber 3, only a gap is left that allows the copper foil of the current width to pass through, and the opening area is minimized to reduce the heat loss from the inside of the drying chamber. The copper foil is dried under the action of the drying chamber 3. Finally, it is wound up under the action of the winding machine 6. It has the advantages of good sealing effect and high drying efficiency.
[0038] Finally, it should be noted that in this document, relationships such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "include," "contain," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.
[0039] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
[0040] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.
Claims
1. A drying device for copper foil, characterized by comprising: include: Drying box (3), a scraper assembly (2) installed on the input side of the drying box (3), a sealing assembly (4) installed at the inlet and outlet of the drying box (3), and a drive assembly (5) installed on the top of the sealing assembly (4). The sealing assembly (4) includes a positioning seat (41), a first slide groove (42), a connecting plate (43), a first slider (44), a sealing seat (45), a limiting rod (46), and a second spring (47). The positioning seat (41) has a first slide groove (42) at its top and bottom. The first slider (44) is slidably connected in the first slide groove (42). The connecting plate (43) is fixedly installed on the inner side of the first slider (44), and the inner side of the connecting plate (43) is fixedly connected to the outer side of the drying oven (3). The sealing seat (45) is provided in the inner cavity of the positioning seat (41). The limiting rod (46) is slidably connected inside the sealing seat (45). The outer side of the limiting rod (46) is fixedly connected to the inner cavity of the positioning seat (41). The positioning seat (41) and the sealing seat (45) are connected based on the second spring (47).
2. The drying apparatus for copper foil according to claim 1, wherein The drive assembly (5) includes a positioning block (51), a drive motor (52), a threaded rod (53), a threaded sleeve (54), and a connecting frame (55). A set of positioning blocks (51) are installed on both sides of the drying box (3). The drive motor (52) is fixedly installed inside the positioning block (51). The output end of the drive motor (52) is connected to one end of the threaded rod (53). The other end of the threaded rod (53) is rotatably connected to another positioning block (51). The threaded sleeve (54) is rotatably connected to the surface of the threaded rod (53). The connecting frame (55) is fixedly installed at the bottom of the threaded sleeve (54).
3. The copper foil drying apparatus according to claim 1, characterized in that, The wiper assembly (2) includes a mounting frame (21), a pressure plate (22), a first scraper (23), a first spring (24), a positioning rod (25), and a second scraper (26). The top of the mounting frame (21) is slidably connected to the positioning rod (25), and the positioning rod (25) extends into the inner cavity of the frame and is connected to the pressure plate (22). The bottom of the pressure plate (22) is equipped with the second scraper (26). The first scraper (23) and the second scraper (26) are fixedly installed at the bottom of the inner cavity of the frame relative to each other. The pressure plate (22) is fixedly connected to the top of the inner cavity of the frame based on the first spring (24).
4. The copper foil drying apparatus according to claim 1, characterized in that, The copper foil drying device also includes a winding machine (6), which is located on the output side of the drying box (3).
5. The copper foil drying apparatus according to claim 1, characterized in that, The copper foil drying device also includes a workbench (1), a drying box (3) fixedly installed at the center of the top of the workbench (1), and a scraper assembly (2) set on the right side of the top of the workbench (1).