Small workpiece anodic oxidation device
By designing a cylindrical container and a rotating frame drive system, the problem of time-consuming and labor-intensive operation of small workpiece oxidation devices was solved, achieving efficient and uniform oxidation effects and low-cost oxidation treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2026-03-13
AI Technical Summary
Existing oxidation equipment is mainly designed for large-scale production lines, and there is a lack of simple equipment suitable for small workpieces or 3D printed crafts, resulting in time-consuming and labor-intensive operation, low efficiency, and high cost.
A small workpiece anodizing device was designed, comprising a cylindrical container, a rotating frame, a motor-driven shaft, and a conductive assembly, which enables the workpiece to rotate and oxidize uniformly in the electrolyte, simplifying the operation process.
It improves the efficiency of oxidation coating on small workpieces or 3D printed crafts, reduces the difficulty and cost of operation, and achieves efficient and uniform oxidation effect.
Smart Images
Figure CN223991147U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of anodizing coating technology and relates to a small workpiece anodizing device. Background Technology
[0002] Anodizing is a commonly used metal surface treatment technology that improves the corrosion resistance, hardness, and wear resistance of metals by forming an oxide film on the metal surface. The principle of anodizing is to utilize the electrochemical reaction between the metal and the electrolyte to form a dense oxide film on the metal surface. The problem is that most existing anodizing devices are designed for large-scale, mass-produced products on production lines, resulting in high costs. For 3D printed crafts or small workpieces, there is a lack of effective and simple equipment. Manual operation is required, connecting a metal wire to a DC power supply and holding the workpiece while rotating it in the electrolyte to ensure thorough oxidation and uniform coating. Furthermore, the oxidation time is also critical, as the oxidation effect is determined by the current magnitude and the duration of the current flow. This makes the operation time-consuming, labor-intensive, and inefficient. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a small workpiece anodizing device. The purpose is to improve the anodizing coating efficiency of small workpieces or 3D printed crafts. A simple anode clamping component with a rotation function is designed to save costs and clamp the workpiece to rotate in the electrolyte, so that the oxidation is sufficient and uniform, and the operation is simple and labor-saving.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a small workpiece anodizing device, comprising a cylindrical container with an open upper end and a closed lower end; the upper end of the cylindrical container is provided with a protruding electrode for connecting an electrode of a power source; a rotating frame is inserted into the cylindrical container without contacting the inner wall of the cylindrical container, and its upper end is connected to a rotating shaft, the top end of which is connected to the output shaft of a motor through an insulating flange for driving the rotating frame to rotate by the motor; a conductive kit is fitted on the rotating shaft, and its side wall is connected to a conductive rod for energizing the rotating frame.
[0005] As a further optimization, the motor is fixedly connected to the motor mounting plate, and its output shaft passes through the motor mounting plate and is connected to the insulating flange; the other end of the conductive rod is fixedly connected to the motor mounting plate.
[0006] As a further optimization, the conductive component is a bearing.
[0007] As a further optimization, the tab is used to connect to the negative terminal of the power supply, and the conductive rod is used to connect to the positive terminal of the power supply.
[0008] As a further optimization, the outer wall of the cylindrical container is wrapped with an insulating layer.
[0009] As a further optimization, the motor is connected to a timer to control the operating time of the motor.
[0010] As a further optimization, the rotating frame includes a base plate; columns are fixedly connected to the four corners of the base plate; at the top of the columns, two adjacent columns are fixedly connected by a crossbar; the two ends of the connecting rod are fixedly connected to two opposite crossbars; and the lower end of the rotating shaft is fixedly connected to the middle of the connecting rod.
[0011] Compared with the prior art, the beneficial effects of this utility model are: the device has a simple structure, low manufacturing cost, convenient operation, saves time and effort, and can efficiently perform anodizing coating on handicrafts or small workpieces. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;
[0013] Figure 2 This is a schematic diagram of the planar structure of the positive electrode assembly according to an embodiment of the present invention.
[0014] The correspondence between the technical features in the figure and the reference numerals is as follows: cylindrical container 1; pole lug 11; insulating layer 12; rotating frame 2; base plate 21; column 22; crossbar 23; connecting rod 24; rotating shaft 3; insulating flange 4; motor 5; motor mounting plate 51; conductive kit 6; conductive rod 61. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0016] For examples, please refer to Figure 1-2 This utility model provides a technical solution: a small workpiece anodizing device, including a cylindrical container 1 with an open upper end and a closed lower end, and a positive electrode assembly; the cylindrical container 1 has a protruding electrode lug 11 at its upper end; a rotating frame 2 is inserted into the cylindrical container 1 but does not contact the inner wall of the cylindrical container 1, and its upper end is connected to a rotating shaft 3. The top end of the rotating shaft 3 is connected to the output shaft of a motor 5 through an insulating flange 4, for driving the rotating frame 2 to rotate through the motor 5; a conductive kit 6 is fitted on the rotating shaft 3, and its side wall is connected to a conductive rod 61 for energizing the rotating frame 2. Thus, the positive electrode assembly includes a motor, an insulating flange, a rotating shaft, a rotating frame, and a conductive kit.
[0017] In use, small workpieces are bound and fixed in the middle of the rotating frame 2 with metal wires. The cylindrical container 1 holds the electrolyte. The tabs 11 and the conductive rod 61 are respectively connected to the two terminals of a power supply, and anodizing is performed when electricity is applied. Simultaneously, the rotating frame 2 is driven by the motor 5 to rotate, causing the small workpiece to rotate and stir in the electrolyte, ensuring thorough oxidation of all parts, uniform coating, and guaranteeing coating quality. Preferably, the tabs 11 are used to connect to the negative terminal of the power supply, and the conductive rod 61 is used to connect to the positive terminal. This device has a simple structure, low manufacturing cost, is easy to operate, and saves time and effort, making it suitable for anodizing coating of handicrafts or small workpieces.
[0018] For example, the motor 5 itself should be fixed, and the motor 5 is fixedly connected to the motor mounting plate 51. Its output shaft passes through the motor mounting plate 51 and is connected to the insulating flange 4. The other end of the conductive rod 61 is fixedly connected to the motor mounting plate 51, thereby fixing the conductive kit 6 as well. Preferably, the motor mounting plate 51 can be raised and lowered. When it is lowered, it can cover the upper end of the cylindrical container 1 to reduce electrolyte splashing. When it is raised, it can facilitate the storage and retrieval of small workpieces.
[0019] Preferably, the conductive kit 6 is a bearing, and one end of the conductive rod 61 is welded to the outer ring of the bearing, which is simple to manufacture and low in cost.
[0020] Because anodizing is exothermic, the electrolyte temperature is high. The outer wall of the cylindrical container 1 is wrapped with an insulating layer 12 to maintain the electrolyte temperature and prevent the temperature from dropping too quickly. On the other hand, the insulating layer 12 is also an insulating layer to prevent leakage. Furthermore, the insulating layer 12 should be heat-resistant and at least able to withstand 150°C.
[0021] Preferably, the motor 5 is connected to a timer to control the operating time of the motor 5. The timer automatically controls the operating duration of the motor 5, making it more convenient to use.
[0022] An exemplary structure of the rotating frame 2 includes a base plate 21; four columns 22 are fixedly connected to the four corners of the base plate 21; two adjacent columns 22 are fixedly connected at their top ends by a crossbar 23; the two ends of a connecting rod 24 are fixedly connected to two opposite crossbars 23; and the lower end of the rotating shaft 3 is fixedly connected to the middle of the connecting rod 24. A small workpiece is placed on the base plate 21, one end of a metal wire is tied to the small workpiece, and the other end is tied to the column 22, thus fixing the small workpiece to the rotating frame 2.
[0023] The advantages of this embodiment are that the device has a simple structure, low manufacturing cost, convenient operation, and saves time and effort. It can efficiently perform anodizing coating on handicrafts or small workpieces.
[0024] All parts not detailed in this application are prior art. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.
Claims
1. A compact apparatus for anodizing workpieces, comprising a cylindrical container (1) open at the upper end and closed at the lower end; characterized in that: The upper end of the cylindrical container (1) is provided with a protruding tab (11); a rotating frame (2) is inserted in the cylindrical container (1) and does not contact the inner wall of the cylindrical container (1), the upper end of which is connected to a rotating shaft (3), the top end of which is connected to the output shaft of a motor (5) through an insulating flange (4), for driving the rotating frame (2) to rotate by the motor (5); A conductive sleeve (6) is sleeved on the rotating shaft (3), and the side wall of the conductive sleeve (6) is connected to a conductive rod (61) for electrifying the rotating frame (2).
2. The small-sized workpiece anodizing apparatus according to claim 1, characterized by: The motor (5) is fixedly connected to a motor fixing plate (51), the output shaft of which penetrates the motor fixing plate (51) and is connected to the insulating flange (4); the other end of the conductive rod (61) is fixedly connected to the motor fixing plate (51).
3. The small-sized workpiece anodizing apparatus according to claim 1, characterized by: The conductive sleeve (6) is a bearing.
4. The small-sized workpiece anodizing apparatus according to claim 1, characterized by: The tab (11) is used to connect the negative electrode of the power supply, and the conductive rod (61) is used to connect the positive electrode of the power supply.
5. The small-sized workpiece anodizing apparatus according to claim 1, characterized by: The outer wall of the cylindrical container (1) is wrapped with an insulating layer (12).
6. The small-sized workpiece anodizing apparatus according to claim 1, characterized by: The motor (5) is connected with a timer for controlling the working time of the motor (5).
7. The compact workpiece anodizing apparatus of claim 1, wherein: The rotating frame (2) comprises a bottom plate (21); four corners of the bottom plate (21) are respectively fixedly connected with a stand (22); At the top end of the stand (22), two adjacent stands (22) are fixedly connected by a cross bar (23); The two ends of a connecting rod (24) are respectively fixedly connected to two opposite cross bars (23); the lower end of the rotating shaft (3) is fixedly connected to the middle of the connecting rod (24).