A hanger for improving oxidation efficiency of automobile rear triangle
By optimizing the fixture structure, efficient and uniform oxidation of the rear triangle parts of automobiles was achieved during the anodizing process, solving the problems of uneven oxidation, watermarks, and low efficiency, and improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HEXING AUTOMOTIVE TECH
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-21
AI Technical Summary
The existing anodizing process for automotive rear triangle parts suffers from problems such as poor flow of the anodizing solution, residual watermarks on the product surface, and low oxidation efficiency, resulting in uneven oxidation and low production efficiency.
A novel hanging fixture is designed, comprising a central hanging section and a side hanging section. The product is hung at an angle between the front and rear staggered hanging surfaces, forming an angle of 15°-25°. Combined with a triangular hook structure and a flip-symmetric design, the flow of oxidation liquid and gas emission are optimized.
It improves the uniformity of the oxidizing solution coverage, shortens the oxidation time, reduces watermark residue, enhances production efficiency and product appearance quality, increases the number of hanging units per unit space, and reduces costs.
Smart Images
Figure CN224531079U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of oxidation hanger technology, specifically relating to a hanger that improves the oxidation efficiency of the rear triangle of a car. Background Technology
[0002] The oxidation process for automotive rear triangle parts typically includes the following main steps: hanging, degreasing, acid etching, electrochemical polishing, film removal, dust removal, anodizing, cold sealing, intermediate sealing, hot sealing, drying, and hanging. Among these, anodizing is a key process that significantly impacts the surface quality, oxide layer density, and corrosion resistance of the product.
[0003] Currently, the rack structure used in the anodizing process is relatively simple, usually employing a flat hanging method, where the rear triangular fittings are directly and parallel to the hanging surface of the rack. This hanging method has the following problems:
[0004] 1. Poor circulation of oxidation solution: Because the parts are parallel to the mounting surface, the oxidation solution cannot fully penetrate into the complex structure and narrow gaps of the parts during the process, resulting in uneven local oxidation.
[0005] 2. Residual watermarks on the product surface: Due to improper hanging angle, moisture is difficult to completely drain during the drying process, resulting in watermarks on the surface of the parts, which affects the appearance quality.
[0006] 3. Low oxidation efficiency: Due to the above reasons, the oxidation time needs to be extended to ensure the oxidation effect, which reduces production efficiency and increases the oxidation cost of a single product. Utility Model Content
[0007] This utility model addresses the aforementioned problems in the existing technology by proposing an oxidation fixture for the rear triangle of automobiles that improves oxidation efficiency, reduces product costs, and increases product yield.
[0008] This utility model can be achieved through the following technical solutions:
[0009] A mounting bracket for improving the oxidation efficiency of the rear triangle of a car, comprising:
[0010] The hanging frame includes a middle hanging part and side hanging parts. The side hanging parts are connected to the left and right sides of the middle hanging part. The front and back surfaces of the middle hanging part form a first hanging surface, and the front and back surfaces of the two side hanging parts form a second hanging surface. The first hanging surface and the second hanging surface are arranged parallel to each other and staggered in front and behind.
[0011] The product's bend is hung on the first hanging surface, and the two sides of the product are hung on the second hanging surface. After hanging, the product forms an inclined angle with the first and second hanging surfaces.
[0012] As a further improvement of this utility model, the angle of inclination between the product and the first hanging surface and the second hanging surface is between 15° and 25°.
[0013] As a further improvement of this utility model, the middle hanging part is provided with a plurality of first hooks to form the first hanging surface, and the side hanging part is provided with a plurality of second hooks to form the second hanging surface.
[0014] As a further improvement of this utility model, the bottom of the middle hanging part extends downward relative to the side hanging part, so that the position of the first hook at the bottommost end is lower than the position of the second hook at the bottommost end.
[0015] As a further improvement of this utility model, the first hook is arranged in a vertical direction, and the second hook is arranged at an angle.
[0016] As a further improvement of this utility model, a single product is hung by one first hook and two second hooks on the left and right. At this time, the line connecting one first hook and the two second hooks on the left and right forms a triangle and forms a set of product hooks.
[0017] As a further improvement of this utility model, in the same group of product hooks, the tilting direction and tilting angle of the left and right second hooks are different.
[0018] As a further improvement of this utility model, in the same group of product hooks, the two second hooks on the left and right sides are at different heights.
[0019] As a further improvement of this utility model, both the front and back sides of the hanging frame are hanging surfaces, and the two hanging surfaces are arranged symmetrically by flipping.
[0020] As a further improvement of this utility model, the top of the hanging frame is provided with a suspension rod, and the top of the suspension rod is provided with a square hook, which is connected to the external target beam.
[0021] Compared with the prior art, the present invention has the following beneficial effects:
[0022] 1. By setting the first and second hanging surfaces to be staggered, the product is hung in an inclined state, which makes it easier for the oxidizing liquid to flow into the complex structure and narrow gaps of the parts, improving the uniformity of the oxidizing liquid coverage. At the same time, due to the improved fluidity and gas emission of the oxidizing liquid, the time required for the oxidation reaction is shortened, thus improving production efficiency.
[0023] 2. Hanging the product at an angle facilitates the rapid removal of moisture during the drying process, significantly reducing watermarks on the product surface and improving the product's appearance quality;
[0024] 3. The staggered front and rear hanging surfaces design allows the hanger to hold more products in a unit space, increasing production capacity and reducing unit cost. At the same time, both the front and rear sides of the hanging frame are hanging surfaces, and the flip-symmetrical design allows products to be hung on both sides, which multiplies the number of products that can be hung in a unit space. Furthermore, the flip-symmetrical structure makes the hanger more evenly stressed, extends its service life, and reduces the cost of use, showing good prospects for industrial application. Attached Figure Description
[0025] Figure 1 This is a structural schematic diagram of the hanging device of this utility model;
[0026] Figure 2 This is a front view of the hanging device of this utility model;
[0027] Figure 3 This is a side view of the hanger of this utility model.
[0028] In the diagram, 100 is the hanging frame; 110 is the middle hanging part; 111 is the first hanging surface; 112 is the first hook; 120 is the side hanging part; 121 is the second hanging surface; 122 is the second hook; 130 is the hanging rod; 131 is the square hook; and 200 is the product. Detailed Implementation
[0029] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. The technical methods of the present invention will be further described, but the present invention is not limited to these embodiments.
[0030] like Figures 1-3 As shown, this utility model provides a hanger for improving the oxidation efficiency of the rear triangle of a car, comprising:
[0031] The hanging frame 100 includes a middle hanging part 110 and side hanging parts 120. The side hanging parts 120 are connected to the left and right sides of the middle hanging part 110. The front and back surfaces of the middle hanging part 110 form a first hanging surface 111, and the front and back surfaces of the two side hanging parts 120 form a second hanging surface 121. The first hanging surface 111 and the second hanging surface 121 are arranged in parallel and staggered in front and behind.
[0032] The bent part of product 200 is hung on the first hanging surface 111, and the two sides of product 200 are hung on the second hanging surface 121. After hanging, product 200 forms an inclined angle with the first hanging surface 111 and the second hanging surface 121.
[0033] In other words, the hanging fixture provided in this embodiment, through the design of the first hanging surface 111 and the second hanging surface 121 that are staggered front and back, makes the product 200 tilted after being hung. This hanging method has at least the following advantages:
[0034] 1. Improve the flow performance of the oxidation solution: The tilted hanging position makes it easier for the oxidation solution to flow into the complex structure and narrow gaps of the parts, improving the uniformity of the oxidation solution coverage;
[0035] 2. Improved oxidation efficiency: The improved fluidity and gas emission of the oxidation liquid shorten the time required for the oxidation reaction and increase production efficiency;
[0036] 4. Reduce watermark residue: The tilted hanging arrangement facilitates the rapid discharge of moisture during the drying process, significantly reducing watermark problems on the product surface and improving the appearance quality of the product.
[0037] 4. Improve space utilization: The staggered hanging surface design allows the hangers to hold more products per unit space, increasing production capacity and reducing unit costs.
[0038] Overall, by optimizing the mounting structure, the rear triangle parts of automobiles are mounted efficiently, uniformly, and stably during the oxidation process. This effectively solves the problems of uneven oxidation, low efficiency, and surface defects in existing technologies, and has good prospects for industrial application and promotion value.
[0039] Preferably, the angle between the product 200 and the first mounting surface 111 and the second mounting surface 121 is between 15° and 25°. Within this angle range, the oxidizing liquid can flow more smoothly over the surface of the product 200 under the combined action of gravity and surface tension, especially to the bends and complex areas of the product 200, thereby significantly improving the uniformity of coverage and reaction efficiency of the oxidizing liquid.
[0040] At the same time, this tilt angle helps the gas (such as oxygen) generated during the anodizing process to escape quickly from the surface of the product 200, avoiding localized uneven oxidation or oxide layer defects caused by long-term adhesion of bubbles.
[0041] In addition, the tilt angle of 15°-25° facilitates the rapid removal of moisture during the subsequent drying process, effectively reducing watermark residue on the surface of product 200 and improving the appearance quality and surface consistency of product 200.
[0042] Therefore, controlling the tilt angle of the product 200 after hanging it between 15° and 25° can maximize the optimization of oxidation liquid flow, gas emission and drying efficiency while ensuring the stability of the hanging, which is one of the key structural parameters for achieving efficient and high-quality oxidation treatment.
[0043] Preferably, the bottom of the middle hanging part 110 extends downward relative to the side hanging part 120, so that the position of the first hook 112 at the bottommost end is lower than the position of the second hook 122 at the bottommost end, thereby increasing the hanging rate of the product 200.
[0044] Preferably, the middle hanging portion 110 is provided with a plurality of first hooks 112 for forming a first hanging surface 111 to hang the bent portion of the product 200, and the side hanging portion 120 is provided with a plurality of second hooks 122 for forming a second hanging surface 121 to hang the two side portions of the product 200.
[0045] The first hook 112 is set vertically to ensure the stability and load-bearing capacity of the hanging structure; while the second hook 122 is set at an angle, which matches the contour of the two sides of the product 200, making the hanging more secure and stable.
[0046] Preferably, a single product 200 is hung by a first hook 112 and two second hooks 122 on the left and right. At this time, the line connecting the first hook 112 and the two second hooks 122 on the left and right forms a triangle and forms a set of hooks for the product 200.
[0047] By using a triangular combination of product hooks 200, the hanging method is highly matched with the shape of product 200, improving hanging efficiency and fit. Furthermore, since a triangle is one of the most stable geometric structures, by hanging product 200 on a triangular support point formed by one first hook 112 and two second hooks 122, the weight of product 200 can be effectively distributed, enhancing the stability of the hanging structure and preventing product 200 from shaking or falling off due to vibration or liquid impact during transportation, oxidation, or drying.
[0048] Furthermore, in the same set of hooks used to hang a single product 200, the left and right second hooks 122 are not only different in tilt direction and tilt angle, but also in height position. This is because the rear triangle parts of a car usually have an asymmetrical shape, especially with different angles and curvatures on both sides. By making the left and right second hooks 122 have different tilt directions and angles, they can fit more closely to the contour of the product 200, improving the fit and stability of the hanging.
[0049] Preferably, both the front and back sides of the hanging frame 100 are hanging surfaces, which is equivalent to multiplying the number of hanging points in the same volume, effectively improving the processing capacity per unit batch and improving the overall efficiency of the oxidation process.
[0050] In addition, the two hanging surfaces at the front and back of the hanging frame 100 are symmetrically arranged. This symmetrical structure allows the hanger to distribute the force more evenly when hanging products 200 on both sides, avoiding localized stress concentration caused by structural asymmetry. Specifically:
[0051] During the oxidation process, the hanger needs to withstand the weight of the product, the impact of the liquid, and the additional stress brought about by the electrochemical reaction. If the structure is not subjected to uneven stress, it is easy to cause failure problems such as hanger deformation, hook fatigue or even breakage.
[0052] By using a symmetrical flip design, the stress distribution on the front and rear hanging surfaces becomes more consistent, thereby effectively improving the structural strength and stability of the hanger.
[0053] Preferably, the top of the hanging frame 100 is provided with a suspension rod 130, and the top of the suspension rod 130 is provided with a square hook 131. The square hook 131 is connected to the external target beam. The square hook 131 can better match the shape of the hanging frame 100 and the target beam, ensuring a tight fit and reducing gaps and looseness caused by shape mismatch. Compared with the traditional round hook, it significantly reduces the swaying amplitude of the hanging frame 100 during the processing, provides more stable support, and prevents chemical waste or product 200 damage caused by swaying.
[0054] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of any combination of the above technical features. The above are specific embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.
[0055] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0056] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0057] The technical solutions of the various embodiments of this utility model can be combined with each other, but only if they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.
[0058] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
Claims
1. A hanger for improving oxidation efficiency of automobile rear triangular, characterized in that, The utility model relates to a hanging frame for product, which comprises: a middle hanging part and two side hanging parts connected to the left and right sides of the middle hanging part, the front and back surfaces of the middle hanging part form a first hanging surface, the front and back surfaces of the two side hanging parts form a second hanging surface, the first and second hanging surfaces are parallelly arranged and staggered in front and back directions; the bending part of the product is hung on the first hanging surface, and the two side edges of the product are hung on the second hanging surface, and an inclined angle is formed between the product and the first and second hanging surfaces after being hung.
2. The device of claim 1, wherein, The inclined angle between the product and the first and second hanging surfaces is between 15° and 25°.
3. The device of claim 1, wherein, The middle hanging part is provided with a plurality of first hooks to form the first hanging surface, and the side hanging part is provided with a plurality of second hooks to form the second hanging surface.
4. The device of claim 3, wherein, The bottom of the middle hanging part extends downward relative to the side hanging part, so that the position of the first hook at the bottom end is lower than the position of the second hook at the bottom end.
5. The device of claim 3, wherein the device is configured to lift the rear triangular portion of the vehicle and to oxidize the rear triangular portion of the vehicle. The first hooks are arranged in a vertical direction, and the second hooks are arranged in an inclined manner.
6. The device of claim 3, wherein, A single product is hung by one first hook and two second hooks, and the line connecting the first hook and the two second hooks is arranged in a triangular shape to form a group of product hooks.
7. The device of claim 6, wherein the device is configured to lift the vehicle rear corner and to reduce the oxidation of the vehicle rear corner. In the same group of product hooks, the inclined directions and angles of the two second hooks are different.
8. The device of claim 6, wherein the device is configured to lift the vehicle rear corner and to reduce the oxidation of the vehicle rear corner. In the same group of product hooks, the two second hooks are located at different height positions.
9. The device of claim 1, wherein, The front and back surfaces of the hanging frame are both hanging surfaces, and the two hanging surfaces are arranged in a mirror image manner.
10. The device of claim 1, wherein, The top of the hanging frame is provided with a suspension rod, and the top of the suspension rod is provided with a square hook connected to an external flying target beam.