Double-layer painting frame mechanism of enamelling machine
By using a double-layer paint rack and adjustable slot design, the adaptability and stability issues of existing paint rack mechanisms are solved, enabling precise control of paint and uniform coating, thereby improving production efficiency and equipment versatility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN JINGWEI ELECTRIC POWER TECH CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-17
AI Technical Summary
Existing paint coating rack mechanisms are difficult to adapt to the painting needs of wires with different diameters. Unstable paint levels lead to waste and uneven coating. The lack of efficient reflux design and fixed structure limit the equipment's versatility and production efficiency.
The design incorporates a double-layer coating rack mechanism with an adjustable slot structure and a paint circulation channel. Automatic paint return is achieved through an overflow pipe and a drain hole. The sliding structure adapts to different wire diameters, ensuring uniform coating and efficiency.
It improves the adaptability and stability of painting equipment, reduces raw material consumption, increases production efficiency and painting quality, and enhances the versatility and ease of maintenance of the equipment.
Smart Images

Figure CN224137964U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of electromagnetic wire manufacturing technology, specifically relating to a double-layer coating frame mechanism for an enameling machine. Background Technology
[0002] In the field of enameling wire production, enameling equipment is the core equipment for producing enameled wires and other products. The stability and efficiency of its coating process directly affect the quality and production efficiency of the enameled wires. The coating rack mechanism, as a key component of the enameling equipment, undertakes the important functions of wire coating and enamel control. However, existing coating rack mechanisms have the following problems in practical applications:
[0003] 1. The wire guide slot structure of traditional coating racks is fixed, which makes it difficult to adapt to the coating needs of wires of different diameters or types. Frequent replacement of parts is required, resulting in low production efficiency.
[0004] 2. During the painting process, the paint level may be too high or too low. If it is too high, the paint will overflow, causing waste and pollution. If it is too low, the paint will be unevenly applied, affecting the product quality.
[0005] 3. The lack of an efficient paint return and recycling design results in paint stagnation or loss within the painting rack, increasing raw material consumption and production costs.
[0006] 4. Existing mechanisms mostly adopt a fixed assembly method, which, while ensuring structural strength, makes it difficult to conveniently adjust key components in the painting process (such as the height of the painting rack and the spacing of the slots), thus limiting the versatility and adaptability of the equipment. Utility Model Content
[0007] The purpose of this utility model is to provide a double-layer coating frame mechanism for an enameling machine to solve the problems existing in the prior art.
[0008] To achieve the above objectives, this utility model provides the following technical solution: a novel double-layer painting rack mechanism, comprising a rear plate, side plates, an upper bottom plate, a lower bottom plate, an upper painting rack, a lower painting rack, an upper slot, a slot, a lower slot, an overflow pipe, and a drain hole;
[0009] The side plates are welded to the left and right sides of the rear plate; the upper and lower base plates are welded parallel to each other to the middle of the rear plate, with the upper base plate located above the lower base plate; the upper coating rack is welded to the front edge of the upper base plate, and the lower coating rack is welded to the front edge of the lower base plate, both of which are slot-shaped structures with open front ends; the lower slot is fixedly installed at the bottom of the slot of the lower coating rack and the bottom of the slot of the upper coating rack; the upper slot and slot are installed above the slot opening of the upper coating rack, and are connected by a sliding structure; the overflow pipe vertically penetrates the upper base plate and communicates with the inner cavity of the upper coating rack; the drain hole is opened on the lower base plate and communicates with the inner cavity of the lower coating rack.
[0010] Preferably, the sliding structure includes a groove formed on the top of the upper coating rack, and a slider disposed at the bottom of the upper slot and the slot, the slider slidingly engaging with the groove.
[0011] Preferably, the upper opening of the overflow pipe is lower than the upper edge of the slot of the upper coating rack, and the lower end extends to the area above the lower coating rack.
[0012] Preferably, the drainage holes are evenly distributed in the area of the lower base plate near the rear plate, and the axis of the drainage holes is perpendicular to the lower base plate.
[0013] Preferably, the upper and lower coating racks have the same depth and their front openings face the same direction.
[0014] Preferably, the side plate, upper bottom plate, lower bottom plate, upper paint rack, and lower paint rack are all formed by welding metal sheets, and the height of the side plate is the same as the height of the rear plate.
[0015] The beneficial effects of this utility model are as follows: Through the innovative design of a double-layer coating rack and an adjustable slot, this utility model significantly improves the adaptability and stability of the coating equipment. The upper and lower coating racks form a paint circulation channel through an overflow pipe and a drain hole. When the paint in the upper layer exceeds the height of the overflow pipe, the excess paint automatically flows into the lower coating rack and back to the paint tank through the drain hole, achieving precise control of the paint level and avoiding overflow waste and uneven coating. The upper slot and the slot adopt a sliding structure connection, allowing for flexible adjustment of the wire passage spacing according to the wire diameter. This adapts to the coating needs of different wire specifications without replacing parts, reducing downtime for debugging and improving production efficiency.
[0016] In terms of structural design, the side plates, bottom plate, and painting rack are welded together to form a rigid frame, ensuring overall structural strength. Meanwhile, the slotted openings of the upper painting rack match the wire travel path, and together with the upper and lower slots, form a stable wire guiding channel, ensuring smooth wire movement during the painting process. Drains are evenly distributed on the lower bottom plate, promoting uniform paint return, avoiding localized stagnation, improving paint recovery efficiency, and reducing material consumption. Through modular assembly and adjustable components, this mechanism significantly enhances the equipment's versatility and ease of maintenance while ensuring painting quality. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is the front view of this utility model. Detailed Implementation
[0019] It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.
[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," etc., 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. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixed connection," and "fixed connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0022] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings and preferred embodiments.
[0023] like Figure 1As shown, a double-layer coating rack mechanism for an enameling machine includes a rear plate 1, side plates 2, an upper base plate 3, a lower base plate 4, an upper coating rack 5, a lower coating rack 6, an upper slot 7, a slot 8, a lower slot 9, an overflow pipe 10, and a drain hole 11. The side plates 2 are welded to both sides of the rear plate 1. The upper base plate 3 and the lower base plate 4 are welded parallel to each other on the rear plate 1, with the upper base plate 3 positioned above the lower base plate 4. The upper coating rack 5 is welded to the front of the upper base plate 3, and the lower coating rack 6 is welded to the front of the lower base plate 4, forming a two-layer coating structure. The lower slot 9 is installed at the bottom of the lower coating rack 6 and the upper coating rack 5. The upper slot 7 and the slot 8 are installed at the top of the upper coating rack 5. The positions of the upper slot 7 and the slot 8 are adjusted according to the diameter of the wire to be coated, ensuring that the gap between the upper slot 7 and the lower slot 9 matches the wire size, allowing the wire to pass smoothly without excessive paint leakage. The drain hole 11 is welded into the lower base plate 4, and the overflow pipe 10 is inserted into the upper base plate 3 and communicates with the interior of the upper coating rack 5. The paint liquid in the paint tank is transported to the upper coating rack 5 by a diaphragm pump, and the paint liquid gradually fills the upper coating rack 5.
[0024] When the paint level in the upper coating rack 5 exceeds the lower slot 9, the wire to be coated is passed through the middle of the upper slot 7 and the lower slot 9. The wire comes into contact with the paint during movement, completing the coating process. Because the upper slot 7 and slot 8 are movable, they can accommodate wires of different sizes, ensuring a good coating effect. As paint is continuously added, when the liquid level exceeds the inlet of the overflow pipe 10, excess paint flows through the overflow pipe 10 into the lower coating rack 6. The paint in the lower coating rack 6 flows out through the drain hole 11 and eventually returns to the paint tank, achieving paint recycling.
[0025] Taking a 0.5mm diameter magnet wire as an example, firstly, according to the wire size, the upper slot 7 is moved to the right through the slot 8, adjusting the gap between the upper slot 7 and the lower slot 9 to 0.6mm (slightly larger than the wire diameter to ensure uniform coating when the wire passes through). The diaphragm pump is then started to pump the paint into the upper coating rack 5. Once the liquid level covers the lower slot 9, the magnet wire is introduced, passing through the slot at a speed of 5m / s for coating. During the coating process, the paint is continuously replenished. When the liquid level exceeds the height of the overflow pipe 10, excess paint flows into the lower coating rack 6 and back to the paint tank through the drain hole 11, maintaining a stable paint level in the upper coating rack 5. Throughout the process, the overflow from the overflow pipe 10 and the backflow from the drain hole 11 are observed to ensure smooth paint circulation and stable coating quality. Testing shows that the coated magnet wire has a uniform paint film thickness, meeting the process requirements.
[0026] It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.
Claims
1. A double layer painting rack mechanism of a painting machine, characterized by: Includes back panel, side panel, upper base plate, lower base plate, upper paint rack, lower paint rack, upper slot, slot, lower slot, overflow pipe and drain hole; The side plates are welded to the left and right sides of the rear plate; the upper and lower base plates are welded parallel to each other to the middle of the rear plate, with the upper base plate located above the lower base plate; the upper coating rack is welded to the front edge of the upper base plate, and the lower coating rack is welded to the front edge of the lower base plate, both of which are slot-shaped structures with open front ends; the lower slot is fixedly installed at the bottom of the slot of the lower coating rack and the bottom of the slot of the upper coating rack; the upper slot and slot are installed above the slot opening of the upper coating rack, and are connected by a sliding structure; the overflow pipe vertically penetrates the upper base plate and communicates with the inner cavity of the upper coating rack; the drain hole is opened on the lower base plate and communicates with the inner cavity of the lower coating rack.
2. The double decker painting rack mechanism of the enameiing machine according to claim 1, characterized in that: The sliding structure includes a groove formed on the top of the upper coating rack, and a slider disposed at the bottom of the upper slot and the slot, the slider slidingly engaging with the groove.
3. The double decker painting rack mechanism of the enameiing machine according to claim 1, characterized in that: The upper opening of the overflow pipe is lower than the upper edge of the slot of the upper coating rack, and the lower end extends to the area above the lower coating rack.
4. The double decker painting rack mechanism of the enameiing machine according to claim 1, wherein: The holes are evenly distributed in the area of the lower base plate near the rear plate, and the axis of the holes is perpendicular to the lower base plate.
5. The double decker painting rack mechanism of the enameiing machine according to claim 1, wherein: The upper and lower painting racks have the same depth and their front openings face the same direction.
6. The double decker painting rack mechanism of the enameiing machine according to claim 1, wherein: The side panels, upper bottom plate, lower bottom plate, upper paint rack, and lower paint rack are all formed by welding metal sheets, and the height of the side panels is the same as the height of the rear plate.