A protection device for back-pulling type anode bolt structure of electrolytic copper foil

Abstract

The utility model belongs to electrolytic copper foil technical field relates to a kind of for the protection device of back pull type anode bolt structure for electrolytic copper foil, protection device includes protective sleeve, lid and fastener;Protective sleeve has tubular structure, its first end is sealed together with lid, its second end is provided with opening, opening is used to seal abutment with arc bottom plate, protective sleeve and lid jointly constitute accommodation space, accommodation space is used to accommodate the free end of connecting piece from the arc bottom plate that stretches out;Fastener is placed in accommodation space, and with the inner wall of protective sleeve fixed connection together, fastener is used to be connected together with the free end of connecting piece;Its beneficial effect is, solved the existing electrolytic copper foil back pull type connecting assembly in anode plate coating production coating process Directly exposed to acid-base, high-temperature environment, easy oxidation, corrosion and deformation, lead to anode stud conductivity in subsequent application, anode plate service life is not high technical problem.

Description

Technical Field

[0001] This utility model relates to the field of electrolytic copper foil technology, and in particular to a protective device for a back-pull anode bolt structure used in electrolytic copper foil. Background Technology

[0002] Chinese invention patent application No. 202211335972.7 discloses an integral copper foil anode plate assembly and its electrolytic copper foil production machine that can improve electrolysis efficiency. It uses a back-pull connection assembly to tightly connect the anode plate and the arc-shaped base plate, which can improve the electrolysis efficiency of the electrode in subsequent electrolysis applications and solve the problem of uneven discharge of the anode plate. The back-pull connection assembly includes an anode stud, one end of which is connected to the outer arc surface of the integral anode plate.

[0003] Back-pull anode bolts are welded to the outer arc surface of the anode plate. Since the production and coating process of the anode plate involves processes such as sandblasting, pickling, and high temperature, if the anode studs are not protected, these processes will cause damage, corrosion, oxidation, etc. to the anode studs, resulting in poor conductivity of the anode studs in subsequent applications. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, this utility model provides a protective device for the back-pull type anode bolt structure for electrolytic copper foil. It solves the technical problem that the existing back-pull type connection components for electrolytic copper foil are directly exposed to acid, alkali and high temperature environments during the production and coating process of the anode plate coating, which is prone to oxidation, corrosion and deformation, resulting in poor conductivity of the anode stud in subsequent applications and short service life of the anode plate.

[0006] Technical issues.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0009] This utility model embodiment provides a protective device for a back-pull type anode bolt structure used in electrolytic copper foil. It is used to cooperate with an arc-shaped base plate to protect the connector mounted on the anode plate from oxidation and corrosion. The protective device includes a protective sleeve, a cover, and fasteners. The protective sleeve has a tubular structure, with its first end sealed to the cover and its second end having an opening for sealing contact with the arc-shaped base plate. The protective sleeve and the cover together form an accommodating space, the shape of which is adapted to the shape of the connector to accommodate the free end of the connector extending from the arc-shaped base plate. The fasteners are placed in the accommodating space and fixedly connected to the inner wall of the protective sleeve. The fasteners have a connection structure matching the free end of the connector for connection with the free end of the connector.

[0010] Optionally, the distance between the fastener and the cover is a first distance L1, and the distance between the fastener and the second end of the protective sleeve is a second distance L2. The second distance L2 is greater than the first distance L1, and the second distance L2 matches the length of the connector.

[0011] Optionally, the inner wall of the protective sleeve is coated with a precious metal protective layer, the components of which include one or more combinations of iridium, ruthenium, and platinum.

[0012] Optionally, the end face of the second end of the protective sleeve is provided with multiple water lines. The water lines are used to increase the sealing between the protective sleeve and the arc-shaped base plate. The shape of the water lines includes, but is not limited to, serrated, wavy, or circular geometric patterns.

[0013] Optionally, the protective sleeve and cover may be made of materials including but not limited to stainless steel, titanium alloy, Hastelloy, copper-nickel alloy, nickel-based alloy, and zirconium alloy.

[0014] Optionally, the cross-section of the protective sleeve may include, but is not limited to, a circle, a hexagon, an octagon, a quadrilateral, and a triangle.

[0015] Optionally, when the connector is a bolt or screw, the fastener corresponds to a nut or screw insert.

[0016] Optionally, when the connector is a bolt for a back-pull copper foil electrode, the accommodating space is cylindrical, and the fastener is a nut with internal threads.

[0017] (III) Beneficial Effects

[0018] The beneficial effects of this utility model are:

[0019] 1. This utility model discloses a protective device for a back-pull type anode bolt structure used in electrolytic copper foil. The device uses a protective sleeve and a cover to form a space for accommodating the connector. Fasteners are fixed inside the protective sleeve. The connector is connected to the fasteners and sealed in the space for protection, thus achieving physical isolation and protection of the connector. Compared with the prior art, this device solves the technical problem that existing back-pull type connectors for electrolytic copper foil are directly exposed to acid, alkali, and high-temperature environments during the production and coating process of the anode plate coating, which easily leads to oxidation, corrosion, and deformation, resulting in poor conductivity and short service life of the connector in subsequent applications.

[0020] 2. The protective sleeve and cover are made of stainless steel, titanium alloy, Hastelloy, copper-nickel alloy, nickel-based alloy or zirconium alloy, which are corrosion resistant and can withstand the strong acid, strong alkali and high temperature environment during the coating process of the anode plate for a long time, ensuring the service life of the protective device itself.

[0021] 3. Multiple water lines are set on the end face of the second end of the protective sleeve, which, together with the arc-shaped base plate, form a multi-layer sealing barrier, greatly improving the sealing performance between the protective sleeve and the connector, effectively preventing external corrosive media from seeping into the interior of the accommodating space, and further extending the service life of the connector.

[0022] 4. The precious metal protective layer coated on the inner wall of the protective sleeve consists of one or more combinations of precious metals such as iridium, ruthenium, and platinum. During the coating process of the anode plate coating, if a small amount of acidic solution seeps into the containment space due to sealing aging or other reasons, the precious metal protective layer can protect the threaded parts of the connectors and fasteners from corrosion, significantly extend the service life of the connectors in subsequent applications, and ensure the conductivity of the connectors in subsequent applications.

[0023] 5. The cross-sectional shape (circular, hexagonal, etc.) and accommodating space of the protective sleeve can be adapted to the specific shape of the connector (such as bolts and screws), and the fasteners (such as nuts and inserts) are also matched accordingly to ensure stable installation and effective sealing. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a protective device for a back-pull type anode bolt structure used in electrolytic copper foil according to the present invention;

[0025] Figure 2 This is a partial cross-sectional schematic diagram of the protective sleeve;

[0026] Figure 3 A schematic diagram of the waterline on the end face of the protective sleeve.

[0027] [Explanation of Labels in the Attached Image]

[0028] 1. Protective sleeve;

[0029] 2. Fasteners;

[0030] 3. Cover;

[0031] 4. Precious metal protective layer;

[0032] 5. Water line. Detailed Implementation

[0033] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] This utility model provides a protective device for a back-pull anode bolt structure used in electrolytic copper foil. It is designed to cooperate with an arc-shaped base plate to protect the connector mounted on the anode plate from oxidation and corrosion. The protective device includes a protective sleeve, a cover, and fasteners. The protective sleeve has a tubular structure, with its first end sealed to the cover and its second end open for sealing against the arc-shaped base plate. The protective sleeve and cover together form a receiving space whose shape matches the shape of the connector, accommodating the free end of the connector extending from the arc-shaped base plate. The fasteners are placed in the receiving space and fixedly connected to the inner wall of the protective sleeve. The fasteners have a connection structure matching the free end of the connector for connection. The beneficial effect is that by protecting the connectors, the device solves the technical problem that existing back-pull connector assemblies for electrolytic copper foil are directly exposed to acid, alkali, and high-temperature environments during the anode plate coating process, easily oxidizing, corroding, and deforming, leading to poor conductivity of the anode studs and short service life of the anode plate in subsequent applications.

[0035] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0036] Example:

[0037] Reference Figure 1 This embodiment provides a protective device for a back-pull anode bolt structure for electrolytic copper foil, which is used to seal with an arc-shaped base plate to protect the connectors mounted on the anode plate from oxidation and corrosion. The protective device includes a protective sleeve 1, a fastener 2, and a cover 3.

[0038] The protective sleeve 1 has a tubular structure, with its first end sealed to the cover 3 and its second end having an opening for sealing with the arc-shaped base plate. The protective sleeve 1 and the cover 3 together form an accommodating space, the shape of which is adapted to the shape of the connector to accommodate the free end of the connector extending from the arc-shaped base plate. The fastener 2 is placed in the accommodating space and fixedly connected to the inner wall of the protective sleeve 1. The fastener 2 has a connection structure that matches the free end of the connector for connecting with the free end of the connector.

[0039] During use, one end of the connector is welded to the outer arc surface of the anode plate of the electrolytic copper foil device. The free end of the connector passes through the arc-shaped base plate and extends into the accommodating space of the protective sleeve 1. The fastener 2 is connected to the free end so that the anode plate and the arc-shaped base plate are tightly connected together. The arc-shaped base plate and the protective sleeve 1 are sealed together to seal and protect the free end of the connector.

[0040] In practical use, the protective sleeve 1 and cover 3 can be made of stainless steel, titanium alloy, Hastelloy, copper-nickel alloy, nickel-based alloy, zirconium alloy, or other corrosion-resistant materials. The specific material selection must consider factors such as acidity, alkaliness, and high temperature in the anode production environment for electrolytic copper foil. For example, Hastelloy or zirconium alloy is preferred in strongly acidic environments. The thickness of the protective sleeve 1 is generally between 1-3 mm, with the actual thickness set according to usage requirements.

[0041] The protective sleeve 1 and the cover 3 can be sealed together by welding or threading, so that the first end of the protective sleeve 1 is sealed to the cover 3. The thickness of the protective sleeve 1 and the cover 3 is set according to the actual use requirements.

[0042] In actual production applications, the protective sleeve 1 is a tubular structure, and its cross-sectional shape is not limited, as long as it matches the shape of the connector. The cross-section of the protective sleeve 1 can be circular, hexagonal, octagonal, quadrilateral, or triangular, etc. The protective sleeve 1 can not only protect the connector in high-temperature and acid / alkali environments, but also prevent the connector from colliding with other components, thus achieving physical protection of the outer surface of the connector.

[0043] In some feasible solutions, the distance between the fastener 2 and the cover 3 is a first distance L1, and the distance between the fastener 2 and the second end of the protective sleeve 1 is a second distance L2. The second distance L2 is greater than the first distance L1, and the second distance L2 matches the length of the connector, that is, the second distance L2 is equal to the effective length of the connector to be protected after it extends in. Therefore, the connector can be placed in the accommodating space to the maximum extent and isolated and protected by the protective device.

[0044] See Figure 2As a feasible solution, the inner wall of the protective sleeve 1 is coated with a precious metal protective layer 4. The components of the precious metal protective layer 4 include one or more combinations of precious metals such as iridium, ruthenium, and platinum. The thickness of the precious metal protective layer 4 is 5-30 μm, preferably 10-20 μm, balancing corrosion resistance durability and cost.

[0045] See Figure 3 As a feasible solution, the end face of the second end of the protective sleeve 1, i.e., the position in contact with the arc-shaped base plate, is provided with multiple water lines 5. This effectively prevents moisture from seeping into the accommodating space, thereby increasing the sealing between the protective sleeve 1 and the arc-shaped base plate, reducing the risk of oxidation, corrosion, and deformation of the threads of the connector in high-temperature and acid / alkali environments, and further extending the service life of the connector. The shape of the water lines 5 includes, but is not limited to, serrated, wavy, or concentric circular geometric patterns. The depth of the water lines 5 is preferably 0.1mm to 0.5mm, the width is 0.2mm to 1.0mm, and the spacing between adjacent water lines 5 is 0.5mm to 2.0mm, formed by machining.

[0046] When the connector is a bolt or screw, the fastener 2 corresponds to a nut or screw insert. Furthermore, when the connector is a bolt for a back-pull copper foil electrode, the protective sleeve 1 is cylindrical, that is, the accommodating space is cylindrical, and the fastener 2 is a nut with internal threads.

[0047] During installation, the second opening of the protective sleeve 1 is inserted into the free end of the back-pull type copper foil electrode bolt to be protected. By rotating the protective sleeve, the fasteners fixed to the inner wall of the protective sleeve 1 are engaged with the back-pull type copper foil electrode bolt, thereby tightly connecting the anode plate of the electrolytic copper foil device with the arc-shaped base plate. At this time, the arc-shaped base plate and the water line 5 of the protective sleeve 1 are tightly fitted to form a seal, so that the free end of the bolt and the nut are completely sealed in the accommodating space formed by the protective sleeve 1 and the cover 3.

[0048] By setting up a protective device, the free end of the connector is placed in the protective device and connected to the fastener 2, thus isolating the connector from the high temperature, acid and alkali and humid environment of the outside world; corrosion-resistant materials are selected for the protective sleeve 1, fastener 2 and cover 3; multiple water lines 5 are set on the end face of the second end of the protective sleeve 1 to improve the sealing between the protective sleeve 1 and the arc-shaped base plate; a precious metal protective layer 4 is coated inside the protective sleeve 1 to prevent the threads of the connector from oxidizing, corroding and deforming, so that the conductivity of the connector remains in good condition in subsequent use, which greatly improves the service life of the connector.

[0049] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0050] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0051] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0052] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0053] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A protective device for a back-pull type anode bolt structure used in electrolytic copper foil, characterized in that: The protective device is designed to cooperate with the arc-shaped base plate to protect the connector mounted on the anode plate from oxidation corrosion. The protective device includes a protective sleeve (1), a fastener (2), and a cover (3). The protective sleeve (1) has a tubular structure, with its first end sealed together with the cover (3) and its second end having an opening for sealing contact with the arc-shaped base plate. The protective sleeve (1) and the cover (3) together form an accommodating space, the shape of which is adapted to the shape of the connector and is used to accommodate the free end of the connector extending from the arc-shaped base plate. The fastener (2) is placed in the accommodating space and is fixedly connected to the inner wall of the protective sleeve (1). The fastener (2) has a connection structure that matches the free end of the connector and is used to connect with the free end of the connector.

2. The protective device for a back-pull type anode bolt structure for electrolytic copper foil as described in claim 1, characterized in that: The distance between the fastener (2) and the cover (3) is a first distance L1, and the distance between the fastener (2) and the second end of the protective sleeve (1) is a second distance L2. The second distance L2 is greater than the first distance L1, and the second distance L2 matches the length of the connector.

3. The protective device for a back-pull type anode bolt structure for electrolytic copper foil as described in claim 1, characterized in that: The inner wall of the protective sleeve (1) is coated with a precious metal protective layer (4), the components of which include one or more combinations of iridium, ruthenium, and platinum.

4. The protective device for a back-pull type anode bolt structure for electrolytic copper foil as described in claim 1, characterized in that: The end face of the second end of the protective sleeve (1) is provided with multiple water lines (5). The water lines (5) are used to increase the sealing between the protective sleeve (1) and the arc-shaped base plate. The shape of the water lines (5) includes, but is not limited to, serrated, wavy, or circular geometric patterns.

5. The protective device for a back-pull type anode bolt structure for electrolytic copper foil as described in claim 1, characterized in that: The materials of the protective sleeve (1) and the cover (3) include, but are not limited to, stainless steel, titanium alloy, Hastelloy, copper-nickel alloy, nickel-based alloy and zirconium alloy.

6. The protective device for a back-pull type anode bolt structure for electrolytic copper foil as described in claim 1, characterized in that: The cross-section of the protective sleeve (1) includes, but is not limited to, a circle, a hexagon, an octagon, a quadrilateral, and a triangle.

7. The protective device for a back-pull type anode bolt structure for electrolytic copper foil as described in claim 1, characterized in that: The connector is a bolt or screw, and the fastener (2) corresponds to a nut or screw insert.

8. The protective device for a back-pull type anode bolt structure for electrolytic copper foil as described in claim 1, characterized in that: The connector is a bolt for a back-pull copper foil electrode, the accommodating space is cylindrical, and the fastener (2) is a nut with internal threads.

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