CN-122015458-A - Air knife device and method for removing water from electrolytic copper foil belt

CN122015458ACN 122015458 ACN122015458 ACN 122015458ACN-122015458-A

Abstract

The invention discloses an air knife device and a water removal method for electrolytic copper foil strips, comprising two first air knife assemblies which are arranged up and down oppositely, two second air knife assemblies which are arranged up and down oppositely, wherein a copper foil strip is transmitted between the two first air knife assemblies and between the two second air knife assemblies, the first air knife assemblies comprise first air cylinders, the first air cylinders are provided with fourth air passages, the fourth air passages are air outlet ends of the first air cylinders, the second air knife assemblies comprise second air cylinders, the second air cylinders are provided with third air pipe joints, the third air pipe joints are air outlet ends of the second air cylinders, the third air pipe joints are positioned at one side of the fourth air passages far away from the copper foil strip, and the air flow velocity sprayed out of the third air pipe joints is larger than that sprayed out of the fourth air passages. The invention provides an air knife device and a water removal method for electrolytic copper foil belt water removal, which can improve the surface quality of copper foil.

Inventors

WU TAO
ZHU RONGYAN
ZONG LIN
SHEN JUN
CHEN HUI

Assignees

江西杭电铜箔有限公司

Dates

Publication Date: 20260512
Application Date: 20260320

Claims (10)

1. The utility model provides an electrolytic copper foil takes air knife device of dewatering, its characterized in that includes two first air knife components (2) that set up relatively from top to bottom, two second air knife components (5) that set up relatively from top to bottom, two between first air knife components (2) and two between second air knife components (5) the copper foil area (9) has been transmitted, first air knife components (2) include first gas cylinder (4), first gas cylinder (4) are equipped with fourth air flue (42), fourth air flue (42) are the end of giving vent to anger of first gas cylinder (4), second air knife components (5) include second gas cylinder (51), third air pipe connector (53) are installed to second gas cylinder (51) are given vent to anger, third air pipe connector (53) are located fourth air flue (42) are kept away from copper foil area (9) one side, follow third air pipe connector (53) blowout air current is greater than fourth air flue (42) blowout velocity of flow.
2. The air knife device for removing water from the electrolytic copper foil strip according to claim 1, further comprising a negative pressure frame (6), wherein the negative pressure frame (6) is positioned on the upper side and the lower side of the copper foil strip (9), the negative pressure frame (6) is provided with a negative pressure cavity (61), the negative pressure cavity (61) is connected with a negative pressure generating device through an air pipe, and the negative pressure cavity (61) is arranged close to an air blown area of the copper foil strip (9).
3. An air knife device for removing water from an electrolytic copper foil tape according to claim 1, wherein the blown area of the copper foil tape (9) comprises a first area P, a second area Q, and the air flow from the third air pipe joint (53) is directed to the first area P, the air flow from the fourth air passage (42) is directed to the second area Q, and the first area P is located behind the second area Q.
4. The air knife device with water removal function for the electrolytic copper foil according to claim 1, further comprising fixing plates (1) positioned on the left side and the right side, wherein the second air cylinders (51) are arranged on the fixing plates (1), the second air cylinders (51) comprise second extension bodies (511) positioned on two axial ends, the second extension bodies (511) penetrate through the fixing plates (1), pressing plates (111) are detachably arranged on the fixing plates (1), and the pressing plates (111) press the second extension bodies (511).
5. The air knife device with the water removal function for the electrolytic copper foil according to claim 1, wherein the first air knife assembly (2) comprises a first air cavity (21) and a connecting block (3), an air source is externally connected to the first air cavity (21) to enable air to be introduced, the first air cavity (21) is communicated with a first air passage (241), the connecting block (3) is provided with a second air passage (33), the first air passage (241) is communicated with the second air passage (33), the first air cylinder (4) is provided with a third air passage (41) and a second air cavity (44), the second air cavity (44) is respectively communicated with the third air passage (41) and the fourth air passage (42), and the third air passage (41) is communicated with the second air passage (33).
6. The air knife device with water removal function for electrolytic copper foil according to claim 5, wherein the connecting block (3) comprises a first connecting block (31) and a second connecting block (32), the first air cylinder (4) is inserted between the first connecting block (31) and the second connecting block (32), the first connecting block (31) is detachably connected with the second connecting block (32), and the first connecting block (31) and the second connecting block (32) mutually compress the first air cylinder (4).
7. The air knife device with water removal function for electrolytic copper foil according to claim 6, wherein the first air cylinder (4) comprises a first extension body (43) at one axial end, and the first extension body (43) protrudes out of the connecting block (3).
8. The air knife device with water removal function for electrolytic copper foil according to claim 1, wherein a second air tube (51) is provided with a second air tube connector (52), the second air tube connector (52) is externally connected with a dry air source so as to introduce dry air into the second air tube (51), and the dry air is sprayed out from the third air tube connector (53).
9. An air knife device for removing water from an electrolytic copper foil strip according to claim 1, characterized in that the length of the fourth air passage (42) is greater than the width of the copper foil strip (9).
10. A method of removing water comprising the steps of: step S1, flushing the electrolytic copper foil strip (9) with clean water; s2, removing water on the surface of the copper foil strip (9) by using a blowing method; S3, flushing the surface of the copper foil strip (9) with pure water; step S4, carrying out air blowing water removal treatment on the surface of the copper foil strip (9) by using the air knife device for removing water from the electrolytic copper foil strip according to any one of claims 1 to 9; And S5, drying the copper foil strip (9).

Description

Air knife device and method for removing water from electrolytic copper foil belt Technical Field The invention relates to the technical field of electrolytic copper foil belt water removal equipment, in particular to an air knife device and a water removal method for electrolytic copper foil belt water removal. Background In the production process, the electrolytic copper foil strip after electrolytic molding is required to be subjected to the procedures of ordinary water washing and pure water washing in sequence, so that electrolyte, additives, metal ions and impurities remained on the surface of the electrolytic copper foil strip are thoroughly removed, the residual water on the surface of the electrolytic copper foil strip is required to be quickly removed after the water washing is finished, and the electrolytic copper foil strip is subjected to the drying procedure to finish final drying. At present, a traditional air knife device is generally adopted in the industry to remove water on the surface of a copper foil belt, when the traditional air knife is used for blowing, water on the surface of the copper foil is impacted by air flow to form water vapor, the water vapor is easy to diffuse and flow back nearby the air knife and is attached to the surface of the copper foil belt again, so that the water removal is incomplete, watermarks, salt spots and oxidation defects are extremely easy to form after subsequent drying, and the surface quality of the copper foil is greatly reduced. Disclosure of Invention The invention aims to overcome the defects in the prior art, and provides an air knife device and a water removal method for removing water from an electrolytic copper foil belt, which can improve the surface quality of the copper foil. In order to achieve the purpose, the air knife device for removing water from the electrolytic copper foil strip comprises two first air knife assemblies which are arranged up and down oppositely, and two second air knife assemblies which are arranged up and down oppositely, wherein a copper foil strip is transmitted between the two first air knife assemblies and between the two second air knife assemblies, the first air knife assemblies comprise first air cylinders, the first air cylinders are provided with fourth air passages, the fourth air passages are air outlet ends of the first air cylinders, the second air knife assemblies comprise second air cylinders, the second air cylinders are provided with third air pipe connectors, the third air pipe connectors are air outlet ends of the second air cylinders, the third air pipe connectors are positioned on one side of the fourth air passages far away from the copper foil strip, and the air flow velocity sprayed out of the third air pipe connectors is larger than that sprayed out of the fourth air passages. Further, the copper foil strip air blowing device also comprises a negative pressure frame, wherein the negative pressure frame is positioned on the upper side and the lower side of the copper foil strip, a negative pressure cavity is arranged on the negative pressure frame, the negative pressure cavity is connected with a negative pressure generating device through an air pipe, and the negative pressure cavity is arranged close to an air blowing area of the copper foil strip. Further, the blown region of the copper foil tape comprises a first region P and a second region Q, the air flow sprayed from the third air pipe joint is directed to the first region P, the air flow sprayed from the fourth air passage is directed to the second region Q, and the first region P is positioned behind the second region Q. Further, the device further comprises fixing plates positioned on the left side and the right side, the fixing plates are provided with second air cylinders, the second air cylinders comprise second extending bodies positioned at two axial ends, the second extending bodies penetrate through the fixing plates, the fixing plates are detachably provided with pressing plates, and the pressing plates press the second extending bodies. Further, the first air knife component comprises a first air cavity and a connecting block, the first air cavity is externally connected with an air source to be filled with air, the first air cavity is communicated with a first air passage, the connecting block is provided with a second air passage, the first air passage is communicated with the second air passage, the first air cylinder is provided with a third air passage and a second air cavity, the second air cavity is respectively communicated with a third air passage and a fourth air passage, and the third air passage is communicated with the second air passage. Further, the connecting block comprises a first connecting block and a second connecting block, the first air cylinder is inserted between the first connecting block and the second connecting block, the first connecting block is detachably connected with the second connecting