Energy-saving drying device for copper foil production
By extending the residence time of the copper foil with S-shaped guide rollers, scraping off water stains with a scraper, and absorbing moisture with an activated carbon plate, the problem of incomplete drying of copper foil was solved, achieving a highly efficient and energy-saving drying effect.
Patent Information
- Application Number
- CN202520184022.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-06
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-06
AI Technical Summary
The existing drying equipment has a simple structure, which makes it impossible to completely dry the water stains on the copper foil surface. At high temperatures, the water vaporizes and the air humidity is high, resulting in poor drying effect.
The design of the S-shaped guide roller extends the residence time of the copper foil in the drying oven. Combined with the scraper to remove water stains, the activated carbon plate absorbs moisture, the pressure roller spacing is adjusted to accommodate copper foils of different thicknesses, and the water collection tank collects water stains.
It improves the drying effect and efficiency of copper foil, reduces air humidity, and adapts to the transmission needs of copper foil of different thicknesses.
Smart Images

Figure CN223840835U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of drying equipment, and in particular relates to an energy-saving drying device for copper foil production. Background Technology
[0002] Copper foil is a cathodic electrolytic material, a thin, continuous metal foil deposited on the substrate layer of a circuit board, serving as the conductor in the PCB. It readily adheres to insulating layers, receives printed protective layers, and is etched to form circuit patterns. With the widespread use of copper foil, its surface often accumulates dirt after production, necessitating cleaning. Following cleaning, it requires drying to prevent oxidation, thus requiring the use of drying equipment.
[0003] The current drying equipment has an overly simple structure. During drying, copper foil is usually transferred from the drying chamber to the drying chamber. However, excessive water on the surface of the copper foil will prevent it from drying completely. Furthermore, the moisture will remain in the drying chamber after it vaporizes at high temperatures, resulting in high air humidity. In addition, the copper foil is transferred to the drying chamber for too short a time, leading to poor drying effect. Utility Model Content
[0004] This utility model provides an energy-saving drying device for copper foil production, aiming to solve the problem of poor drying effect of current drying devices.
[0005] This utility model is implemented as follows: an energy-saving drying device for copper foil production includes a drying chamber; two sets of guide rollers are installed on the inner side wall of the drying chamber; a drive roller and a pressure roller are installed at the opening of the discharge port side wall of the drying chamber; a motor is installed on the outer side wall of the drying chamber, and the output shaft of the motor is connected to the central shaft of the drive roller; a drying fan is installed on the top of the drying chamber; the air inlet and outlet of the drying fan are both connected to air ducts; air inlet slots and air outlet slots are respectively opened on the left and right side walls of the drying chamber; the air inlet slots are connected to the air outlet of the drying fan through air ducts; the air outlet slots are connected to the air inlet of the drying fan through air ducts; two sets of supports are installed on the side wall of the feed inlet of the drying chamber; a scraper is installed between the two sets of supports, and the scraper is located at the feed inlet of the drying chamber.
[0006] Preferably, a sliding groove is provided at the bottom of the support above the side wall of the drying oven, and a connecting plate is slidably inserted into the sliding groove. A spring is installed in the sliding groove of the support, and the movable end of the spring is connected to the connecting plate. The scraper is installed at the bottom of the connecting plate.
[0007] Preferably, the scraper is made of soft plastic and is placed at an angle.
[0008] Preferably, the side wall of the drying oven is provided with a sliding groove, and a screw is rotatably installed in the sliding groove. A screw sleeve is fitted onto the surface of the screw, and the screw sleeve is in contact with the inner wall of the sliding groove of the drying oven. The pressure roller is rotatably installed on the side of the screw sleeve.
[0009] Preferably, the air outlet trough has an opening on its exterior, and an activated carbon plate is placed in the opening. The surface of the activated carbon plate is uniformly provided with through holes.
[0010] Preferably, a water collection tank is installed below the feed inlet of the drying box.
[0011] Compared with the prior art, the embodiments of this application have the following main advantages:
[0012] With two sets of guide rollers, the copper foil passes through the surfaces of the two sets of guide rollers in an S-shape. This arrangement can increase the drying time of the copper foil in a limited space, thereby improving the drying effect. With the addition of scrapers, two sets of scrapers can remove water stains from the surface of the copper foil before it enters the drying chamber, thereby improving the drying effect and efficiency. Under the elastic force of the spring, the connecting plate keeps the upper scraper in close contact with the surface of the copper foil, thereby improving the water removal effect. At the same time, it can keep the copper foil in a taut state during transmission, thereby further improving the subsequent drying effect. Attached Figure Description
[0013] Figure 1 This is a front view cross-sectional structural diagram of the present invention;
[0014] Figure 2 This is a side view sectional structural schematic diagram of this utility model;
[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the bracket of this utility model;
[0016] Figure 4 This is a top view schematic diagram of the scraper structure of this utility model;
[0017] Figure 5 This is a side view cross-sectional structural diagram of the pressure roller of this utility model;
[0018] In the diagram: 1. Drying box; 2. Guide roller; 3. Drive roller; 4. Pressure roller; 5. Motor; 6. Drying fan; 7. Air duct; 8. Air inlet slot; 9. Air outlet slot; 10. Support frame; 11. Scraper; 12. Connecting plate; 13. Spring; 14. Screw; 15. Screw sleeve; 16. Activated carbon plate; 17. Water collection tank. Detailed Implementation
[0019] 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 application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.
[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0021] This utility model embodiment provides an energy-saving drying device for copper foil production, such as... Figure 1-5 As shown, the drying chamber includes a drying box 1. Two sets of guide rollers 2 are installed on the inner wall of the drying box 1. A drive roller 3 and a pressure roller 4 are installed at the opening of the discharge port side wall of the drying box 1. A motor 5 is installed on the outer wall of the drying box 1, and the output shaft of the motor 5 is connected to the central shaft of the drive roller 3. A drying fan 6 is installed on the top of the drying box 1. Both the air inlet and outlet of the drying fan 6 are connected to air ducts 7. Air inlet slots 8 and air outlet slots 9 are respectively opened on the left and right side walls of the drying box 1. The air inlet slot 8 is connected to the air outlet of the drying fan 6 through air ducts 7, and the air outlet slot 9 is connected to the air inlet of the drying fan 6 through air ducts 7. Two sets of supports 10 are installed on the side wall of the feed inlet of the drying box 1, and a scraper 11 is installed between the two sets of supports 10. The scraper 11 is located at the feed inlet of the drying box 1. When using the device, copper foil can be put into the feed port on the left side of the drying chamber 1. The copper foil passes through two sets of guide rollers 2 and finally passes through the space between the drive roller 3 and the pressure roller 4. The copper foil is transferred by the cooperation of the drive roller 3 and the pressure roller 4. When the copper foil is transferred, the drying fan 6 at the top of the drying chamber 1 is started. The drying fan 6 blows heated air from the air inlet 8 of the drying chamber 1 onto the surface of the copper foil and then blows it out from the air outlet 9. With the two sets of guide rollers 2, the copper foil passes through the surface of the two sets of guide rollers 2 in an S-shape. This setting can improve the drying time of the copper foil in the limited space, thereby improving the drying effect of the copper foil. With the scraper 11, the two sets of scraper 11 can remove water stains on the surface of the copper foil before it enters the drying chamber 1, thereby improving the drying effect and drying efficiency of the copper foil.
[0022] The bottom of the support 10 on the upper side wall of the drying oven 1 is provided with a sliding groove, and a connecting plate 12 is slidably inserted into the sliding groove. A spring 13 is installed in the sliding groove of the support 10, and the movable end of the spring 13 is connected to the connecting plate 12. A scraper 11 is installed at the bottom of the connecting plate 12. With the connection plate 12 and the spring 13, the connecting plate 12, under the elastic force of the spring 13, makes the scraper 11 above it stick tightly to the surface of the copper foil, thereby improving the water scraping effect. At the same time, it can keep the copper foil in a taut state during transmission, thereby further improving the subsequent drying effect.
[0023] The scraper 11 is made of soft plastic and is placed at an angle. By placing the scraper 11 at an angle, the water scraped off can flow down from the side, preventing water stains from remaining between the scraper 11 and the copper foil for a long time.
[0024] The side wall of the drying chamber 1 is provided with a sliding groove, and a screw 14 is rotatably installed in the sliding groove. A screw sleeve 15 is sleeved on the surface of the screw 14. The screw sleeve 15 fits against the inner wall of the sliding groove of the drying chamber 1. The pressure roller 4 is rotatably installed on the side of the screw sleeve 15. With the screw 14 and screw sleeve 15 provided, the screw 14 can be rotated, and the screw sleeve 15 slides up and down under the action of the thread on the surface of the screw 14. This setting allows for adjustment of the distance and pressure between the pressure roller 4 and the drive roller 3, which is convenient for conveying copper foil of different thicknesses.
[0025] The air outlet slot 9 has an opening on its exterior, and an activated carbon plate 16 is placed in the opening. The surface of the activated carbon plate 16 has uniformly opened through holes. With the activated carbon plate 16, the high temperature air will cause the liquid water to vaporize. The activated carbon plate 16 can absorb the vaporized water in the air, thereby making the air drier and improving the drying effect of the drying box 1.
[0026] A water collection tank 17 is installed below the feed inlet of the drying oven 1. By setting up the water collection tank 17, the water scraped off by the scraper 11 can be collected to prevent it from accumulating on the ground.
[0027] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.
[0028] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units described above may be implemented in other ways in practice. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; indirect coupling or communication connections between devices or units may be telecommunications or other forms.
[0029] The units described above 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.
[0030] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.
Claims
1. An energy-saving drying device for copper foil production, characterized in that, The drying chamber (1) includes two sets of guide rollers (2) installed on the inner wall of the drying chamber (1), a drive roller (3) and a pressure roller (4) installed at the outlet side wall opening of the drying chamber (1), a motor (5) installed on the outer wall of the drying chamber (1), the output shaft of the motor (5) being connected to the central shaft of the drive roller (3), and a drying fan (6) installed on the top of the drying chamber (1). Both the air inlet and outlet of the drying fan (6) are connected to air ducts (7). The left and right side walls of the drying box (1) are respectively provided with an air inlet groove (8) and an air outlet groove (9). The air inlet groove (8) is connected to the air outlet of the drying fan (6) through an air pipe (7). The air outlet groove (9) is connected to the air inlet of the drying fan (6) through an air pipe (7). Two sets of brackets (10) are installed on the side wall of the feed inlet of the drying box (1). A scraper (11) is installed between the two sets of brackets (10). The scraper (11) is located at the feed inlet of the drying box (1).
2. The energy-saving drying device for copper foil production as described in claim 1, characterized in that, The bottom of the support (10) above the side wall of the drying box (1) is provided with a sliding groove, and a connecting plate (12) is slidably inserted in the sliding groove. A spring (13) is installed in the sliding groove of the support (10), and the movable end of the spring (13) is connected to the connecting plate (12). The scraper (11) is installed at the bottom of the connecting plate (12).
3. The energy-saving drying device for copper foil production as described in claim 1, characterized in that, The scraper (11) is made of soft plastic and is placed at an angle.
4. The energy-saving drying device for copper foil production as described in claim 1, characterized in that, The drying box (1) has a sliding groove on its side wall, and a screw (14) is rotatably installed in the sliding groove. A screw sleeve (15) is sleeved on the surface of the screw (14). The screw sleeve (15) is in contact with the inner wall of the sliding groove of the drying box (1). The pressure roller (4) is rotatably installed on the side of the screw sleeve (15).
5. The energy-saving drying device for copper foil production as described in claim 1, characterized in that, The air outlet trough (9) has an opening on its exterior, and an activated carbon plate (16) is placed in the opening. The surface of the activated carbon plate (16) is uniformly provided with through holes.
6. The energy-saving drying device for copper foil production as described in claim 1, characterized in that, A water collection tank (17) is installed below the feed inlet of the drying box (1).