A traceless support hanger for metal surface treatment

Abstract

The utility model relates to the technical field of hanger, concretely is a kind of traceless support hanger for metal surface treatment, including hanger main part, the hanger main part one side is along length direction interval and is equipped with multiple material placing space for placing metal workpiece, the below of each material placing space is correspondingly fixed with a support backing pad;The front end of the support backing pad is provided with slot;The edge of the support backing pad is equipped with chamfer face;The hanger main part top is provided with wire hole, the utility model: through the collaborative design of "support backing pad preliminary support+slot liquid buoyancy makes workpiece float and separate contact", avoid the "midline mark" caused by traditional metal wire / hanger and workpiece contact, contact site processing problem, workpiece surface is treated without scratch, no unprocessed area, satisfy high surface quality requirement.

Description

Technical Field

[0001] This utility model relates to the field of hanging fixture technology, specifically a traceless support hanging fixture for metal surface treatment. Background Technology

[0002] In the metal surface treatment industry, iron, aluminum, and other metal workpieces are often processed using horizontal production lines for processes such as anodizing, electrophoresis, and electrolysis. However, due to the material structure characteristics or low strength of some workpieces, during the stacking process on the horizontal production line, the middle part is prone to lack of support and sagging. The sagging of workpieces will cause them to stack on top of each other, and then in subsequent electrolysis, anodizing, and other processes, the stacked parts will have defects such as poor surface treatment (e.g., coloring, bubbles), inclusions in the bath solution, and surface scratches.

[0003] To avoid the aforementioned stacking problems, traditional processes typically involve wrapping the workpiece with metal wire (such as iron or aluminum wire) or using metal fixtures to support it. However, this method has significant drawbacks: the contact area between the workpiece and the metal wire or fixture cannot be effectively electrolyzed or oxidized, and is easily scratched, forming "centerline marks." To reduce these defects, the industry is often forced to limit the processing length of workpieces (e.g., shortening a 6-meter workpiece to 3 meters); for workpieces with high-quality requirements, an additional step of removing defective areas is needed after surface treatment, which not only reduces yield and processing efficiency but also significantly increases labor costs. Furthermore, workpieces requiring scratch-free treatment cannot be adapted to horizontal production lines and must be replaced by more expensive vertical production lines. This problem has long remained unresolved and has become a common technical pain point in the metal surface treatment industry, leaving some users with no choice but to accept the processing defects. Utility Model Content

[0004] The purpose of this invention is to provide a non-marking support hanger for metal surface treatment, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A traceless support hanger for metal surface treatment includes a hanger body. A plurality of material placement spaces for placing metal workpieces are provided at intervals along the length direction on one side of the hanger body. A support plate is fixed below each material placement space.

[0007] The front end of the support plate is provided with a slot;

[0008] The edges of the support brackets are all chamfered.

[0009] The main body of the hanger has a hanging wire hole at the top.

[0010] In a preferred embodiment of this utility model, the hanging body is provided in two sets, and a through hole is opened on the side of the hanging body away from the support plate. The two sets of hanging bodies are detachably connected by a connecting plate and bolts. The bolts pass through the connecting plate and the through hole and are installed on the hanging body.

[0011] In a preferred embodiment of this utility model, the main body of the hanging device is made of any one of PE, PP or glass fiber.

[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0013] Through the collaborative design of "initial support by the support plate + buoyancy of the bath liquid to make the workpiece float and detach from the contact", the problems of "center line marks" and poor treatment of contact parts caused by the contact between traditional metal wires / hangers and workpieces are avoided. After the workpiece surface is treated, there are no scratches or untreated areas, which meets the requirements of high surface quality.

[0014] The hanger materials (PE, PP, etc.) are cost-effective and have low manufacturing costs; at the same time, they allow workpieces requiring no marks to be adapted to horizontal production lines without the need to switch to higher-cost vertical production lines.

[0015] The installation of the hanger only requires the suspension of metal wires. The steps of placing the workpiece and binding the metal wires are simple and easy for workers to learn. The height of the material placement space, the thickness of the support plate, and the length of the hanger can be customized as needed to adapt to metal workpieces of different sizes and weights, as well as different types of surface treatment processes. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 A three-dimensional view of a non-marking support hanger for metal surface treatment;

[0018] Figure 2 This is a front view of a non-marking support hanger used for metal surface treatment;

[0019] Figure 3 This is a schematic diagram of a non-marking support hanger for metal surface treatment.

[0020] In the diagram: 1. Hanger body; 2. Support plate; 3. Chamfered surface; 4. Groove; 5. Hanging wire hole; 6. Through hole; 7. Connecting plate; 8. Bolt. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0022] Please refer to Figure 1-3 A traceless support hanger for metal surface treatment includes a hanger body 1. The hanger body 1 has multiple material placement spaces for placing metal workpieces spaced apart along its length on one side. A support plate 2 is fixed below each material placement space. The support plate 2 is used for initial support when the workpiece is placed into the material placement space.

[0023] The front end of the support plate 2 is provided with a slot 4, which is used to thread a metal wire. The outlet of the material discharge space is sealed by binding or clamping the metal wire to prevent the workpiece from falling out when it floats in the liquid.

[0024] The edges (including the upper edge and the side edge) of the support plate 2 are all provided with chamfered surfaces 3, the radius of which is 1-3mm, to reduce the friction between the support plate 2 and the workpiece and avoid scratching the workpiece.

[0025] The top of the hanger body 1 is provided with a hanging wire hole 5, which is used to thread a metal wire to suspend the hanger on the beam of the horizontal production line.

[0026] The hanging body 1 is provided in two sets. The hanging body 1 has a through hole 6 on the side away from the support plate 2. The two sets of hanging bodies 1 are detachably connected by a connecting plate 7 and a bolt 8. The bolt 8 passes through the connecting plate 7 and the through hole 6 and is installed on the hanging body 1.

[0027] The main body of the hanging fixture 1 can be used alone or by splicing together to improve processing efficiency.

[0028] The main body 1 of the hanger is made of any one of PE, PP, special plastics or glass fiber. The material selection must be adapted to the specific surface treatment process: PE or PP can be used for room temperature acid / alkaline bath processes (such as conventional anodizing); high temperature processes (such as aluminum profile electrophoresis) require high temperature resistant special plastics (such as polyetheretherketone, liquid crystal polymer, polyimide); glass fiber can be used for highly corrosive bath processes.

[0029] The height of the material feeding space is adjusted according to the thickness of the workpiece to be processed. The adjustment principle is: material feeding space height = workpiece thickness + 3-8mm. The reserved 3-8mm gap is used to ensure that after the workpiece is immersed in the bath, it can float in the bath for part of the time with the help of the buoyancy of the bath, and detach from the support plate 2 to ensure that the entire surface of the workpiece is processed.

[0030] The thickness of the support bracket 2 is adjusted according to the weight of a single workpiece: when the workpiece weight is ≤5kg, the bracket thickness is 4-5mm; when the workpiece weight is 5-10kg, the bracket thickness is 6-8mm; when the workpiece weight is >10kg, the bracket thickness is 10-12mm, to ensure the strength of the support bracket 2 and prevent the workpiece from bending and getting stuck.

[0031] The working principle of this utility model is as follows: an iron wire is passed through the suspension hole 5 to suspend the main body 1 of the hanger on the beam of the horizontal production line. The length of the iron wire is adjusted so that after the hanger is immersed in the oxidation tank liquid, the center of the workpiece is flush with the surface of the tank liquid.

[0032] Workpiece placement: Workers place aluminum profile workpieces one by one into the feeding space, ensuring that both ends of the workpieces are aligned;

[0033] Anti-dropping fixing: Use the same iron wire along the length of the hanger, wrap it around every 4 slots 4 times, and only straighten the iron wire and insert it into the remaining 4 slots to close the material discharge space outlet;

[0034] Process adaptation: The temperature of the oxidation bath is 20-25℃. The workpiece is immersed in the bath for 30 minutes. During this period, with the help of the buoyancy of the bath, the workpiece floats and detaches from the support plate 2 for about 60% of the time, so as to achieve full surface oxidation.

[0035] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A non-marking support hanger for metal surface treatment, comprising a hanger body (1), characterized in that: The main body (1) of the hanger has multiple material placement spaces for placing metal workpieces spaced along its length on one side, and a support plate (2) is fixed below each material placement space. The front end of the support plate (2) is provided with a slot (4); The edges of the support plate (2) are all provided with chamfered surfaces (3); The main body (1) of the hanger has a hanging wire hole (5) at the top.

2. The non-marking support hanger for metal surface treatment according to claim 1, characterized in that, The hanging body (1) is provided in two sets. The hanging body (1) has a through hole (6) on the side away from the support plate (2). The two sets of hanging bodies (1) are detachably connected by a connecting plate (7) and a bolt (8). The bolt (8) passes through the connecting plate (7) and the through hole (6) and is installed on the hanging body (1).

3. The non-marking support hanger for metal surface treatment according to claim 1, characterized in that, The main body (1) of the hanging fixture is made of any one of PE, PP or fiberglass.

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