Hub cover double-color paint spraying device

Abstract

The utility model belongs to the technical field of automobile hub cover paint spraying, and particularly relates to a hub cover double-color paint spraying device which comprises a bottom frame, a spraying frame, a positioning mechanism, a telescopic mechanism, a limiting piece, a connecting assembly, a first color spraying mold and a second color spraying mold. The lower end of the spraying frame is rotationally connected to the bottom frame. The positioning mechanism is arranged on the spraying frame and used for positioning the hub cover. The telescopic mechanism is arranged on the spraying frame, and the movable end of the telescopic mechanism is connected with a mounting frame and can drive the mounting frame to vertically move; the first color spraying mold and the second color spraying mold are detachably connected to the mounting frame through connecting assemblies, and the telescopic mechanism can drive the first color spraying mold and the second color spraying mold to abut against the hub cover; and the limiting piece is used for limiting the vertical position of the mounting frame. According to the scheme, high-efficiency and residue-free double-color paint spraying can be realized.

Description

Technical Field

[0001] This utility model belongs to the field of automotive wheel hub cover painting technology, specifically relating to a wheel hub cover two-color painting device. Background Technology

[0002] Two-tone painting of wheel covers is an important process in automobile manufacturing and after-sales service. It not only enhances the aesthetics of the wheel covers but also strengthens the product's personalization and recognizability. In the two-tone painting process for small-batch or customized two-tone wheel covers, because the covers often have textured surfaces, openwork patterns, or sharp edges, robotic arms or automated equipment cannot completely cover all angles, especially details such as edges and grooves. Therefore, manual spraying (i.e., rotating the wheel cover with one hand while using a spray gun with the other) remains indispensable. Manual spraying allows for flexible adjustment of the spray gun angle and distance.

[0003] However, when performing two-color painting on wheel covers using traditional methods, masking tape or masking film is typically used for color separation. This method is highly dependent on manual operation, and the steps of masking, painting, and removal are time-consuming and tedious. On the other hand, after removing the masking tape / film, adhesive residue is easily left behind, requiring additional cleaning or polishing, which increases production costs. Furthermore, if the tape is too sticky, it may damage the underlying paint surface or even cause the coating to peel off, affecting product yield. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a two-color spray painting device for wheel hub covers, which solves the problems of low efficiency and easy damage to the paint surface caused by existing masking methods.

[0005] The technical solution adopted by this utility model is as follows: a two-color spray painting device for wheel hub covers, including a base frame, a spraying frame, a positioning mechanism, a telescopic mechanism, a limiting component, a connecting component, a first spraying mold, and a second spraying mold;

[0006] The lower end of the spraying frame is rotatably connected to the base frame;

[0007] The positioning mechanism is mounted on the spraying frame and is used to position the hub cap;

[0008] The telescopic mechanism is mounted on the spraying frame, and the movable end of the telescopic mechanism is connected to the mounting frame, which can drive the mounting frame to move vertically.

[0009] The first and second spraying molds are detachably connected to the mounting frame via connecting components, and the telescopic mechanism can respectively drive the first and second spraying molds to abut against the wheel hub cover;

[0010] The limiting component is used to limit the vertical position of the mounting bracket.

[0011] Furthermore, a rotating base is fixedly installed at the top center of the base frame, and a rotating rod is fixedly connected to the bottom of the spraying frame, with the lower end of the rotating rod rotatably connected inside the rotating base.

[0012] Furthermore, the positioning mechanism includes a positioning column and a positioning block;

[0013] The bottom of the hub cover has a central cover groove, and the bottom of the hub cover also has several positioning grooves arranged in a circumferential array.

[0014] The positioning post is fixedly connected to the center position of the top of the spraying frame. The upper end of the positioning post is engaged with the center cover groove. The positioning block is provided with several positioning slots. Several positioning blocks are circumferentially arrayed and connected to the positioning post. The upper end of each positioning block can be engaged in the corresponding positioning slot.

[0015] Furthermore, the telescopic mechanism includes a column and a spring;

[0016] There are two columns and two springs. The two columns are fixedly connected to the top of the spraying frame and are symmetrically distributed on both sides of the positioning mechanism. The springs are sleeved on the columns, the bottom of the springs are fixedly connected to the top of the spraying frame, and the top of the springs are fixedly connected to the bottom of the mounting frame. The two ends of the mounting frame are slidably sleeved on the columns on both sides.

[0017] Furthermore, the limiting component is a nut, and two nuts are provided for each of the two columns. The lower outer peripheral wall of the column is provided with an external thread, and the nut is threadedly connected to the external thread of the column.

[0018] Furthermore, the connecting assembly includes a connecting rod, a magnet, and a magnetically conductive metal block;

[0019] The top of both the first and second spraying molds is fixedly connected to two spaced connecting rods. A magnet is fixedly connected to the top of each connecting rod. A connecting groove is provided on the mounting bracket corresponding to the connecting rod. The magnetically conductive metal block is fixedly connected in the connecting groove, and the magnet is magnetically attracted to the magnetically conductive metal block.

[0020] Furthermore, a collection box is provided below the base frame.

[0021] The beneficial effects of this utility model are:

[0022] 1. The device, through the combined use of a base frame, spraying frame, positioning mechanism, telescopic mechanism, limiting component, connecting component, first spraying mold, and second spraying mold, achieves automated positioning and spraying of wheel hub covers. The positioning mechanism ensures that the wheel hub cover is accurately placed in the spraying position, while the telescopic mechanism drives the first and second spraying molds to move vertically, enabling them to abut against the wheel hub cover respectively. The limiting component limits the mounting frame, achieving precise two-color spraying of the wheel hub cover. Both the first and second spraying molds are detachably connected to the mounting frame through the connecting component, facilitating quick replacement of the first and second spraying molds, improving spraying efficiency, reducing the need for manual operation, lowering the risk of paint damage, and improving product quality.

[0023] 2. The device uses connecting components (including connecting rods, magnets and magnetic metal blocks) to detachably connect the first and second spraying molds to the mounting frame, which facilitates quick replacement of the first and second spraying molds and avoids the use of tape or masking film. At the same time, the cooperation of the limiting component (nut) and the external thread at the bottom of the column ensures the stable positioning of the mounting frame and reduces paint damage caused by improper operation. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention (with the first spraying mold installed);

[0025] Figure 2 This is a schematic diagram of the overall structure of the present invention (with a second color spraying mold installed);

[0026] Figure 3 This is a partial structural schematic diagram of the present invention;

[0027] Figure 4 This is an exploded view (first-person perspective) of the spray painting frame and hub cap in this utility model;

[0028] Figure 5 This is an exploded view (second perspective) of the spray painting frame and hub cap in this utility model;

[0029] Figure 6 This is an exploded view of the first spraying mold, the second spraying mold, and the mounting bracket in this utility model;

[0030] Figure 7 This is a schematic diagram of the mounting bracket in this utility model;

[0031] The attached diagram is labeled as follows:

[0032] Base frame 1, rotating seat 11, rotating rod 12, collection box 13, spraying rack 2, positioning mechanism 3, positioning column 31, positioning block 32, telescopic mechanism 4, mounting bracket 41, column 42, spring 43, external thread 44, connecting groove 45, limiting component 5, nut 51, connecting assembly 6, connecting rod 61, magnet 62, magnetic conductive metal block 63, first spraying mold 7, second spraying mold 8, hub cover 9, center cover groove 91, positioning groove 92. Detailed Implementation

[0033] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0034] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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 of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] like Figures 1 to 7 As shown, a two-color spray painting device for wheel hub covers includes a base frame 1, a spray frame 2, a positioning mechanism 3, a telescopic mechanism 4, a limiting component 5, a connecting assembly 6, a first spray paint mold 7, and a second spray paint mold 8.

[0037] The lower end of the spraying frame 2 is rotatably connected to the base frame 1;

[0038] The positioning mechanism 3 is mounted on the spraying frame 2 and is used to position the hub cover 9.

[0039] The telescopic mechanism 4 is mounted on the spraying frame 2, and the movable end of the telescopic mechanism 4 is connected to the mounting frame 41, which can drive the mounting frame 41 to move vertically.

[0040] like Figure 1, Figure 6 and Figure 7 As shown, both the first spraying mold 7 and the second spraying mold 8 are detachably connected to the mounting bracket 41 via the connecting assembly 6. The telescopic mechanism 4 can respectively drive the first spraying mold 7 and the second spraying mold 8 to abut against the wheel hub cover 9. In this embodiment, the first spraying mold 7 and the second spraying mold 8 can be completely aligned with the color-separation area of ​​the wheel hub cover 9. The first spraying mold 7 and the second spraying mold 8 can be manufactured in different shapes according to different two-color separation areas.

[0041] The limiting member 5 is used to limit the vertical position of the mounting bracket 41.

[0042] As a preferred option, such as Figure 3 As shown, a rotating base 11 is fixedly installed at the top center of the base frame 1, and a rotating rod 12 is fixedly connected to the bottom of the spraying frame 2. The lower end of the rotating rod 12 is rotatably connected inside the rotating base 11. The rotating base 11 is fixed to the center of the base frame 1, and the lower end of the rotating rod 12 is rotatably connected inside the rotating base 11, so as to realize the free circumferential rotation of the hub cover 9.

[0043] In other embodiments of this solution, the rotating rod 12 can be driven by a motor to rotate, replacing the traditional hand-held rotation, freeing the operator to focus on spray gun control.

[0044] As a preferred option, such as Figure 4 and Figure 5 As shown, the positioning mechanism 3 includes a positioning post 31 and a positioning block 32; the bottom of the hub cover 9 is provided with a central cover groove 91, and the bottom of the hub cover 9 is also provided with several circumferentially arranged positioning grooves 92; the positioning post 31 is fixedly connected to the center position of the top of the spray frame 2, and the upper end of the positioning post 31 is engaged with the central cover groove 91; several positioning blocks 32 are provided corresponding to several positioning grooves 92, and several positioning blocks 32 are circumferentially arranged and connected to the positioning post 31, and the upper end of each positioning block 32 can be engaged in the corresponding positioning groove 92. In this embodiment, five positioning grooves 92 and five positioning blocks 32 are provided. The shapes of the positioning posts 31 and the center cover groove 91 are adapted to each other. The positioning posts 31 are engaged with the center cover groove 91 of the wheel hub cover 9. The outer end of the positioning block 32 is inclined upward, and the shape of the outer end of the positioning block 32 is adapted to the shape of the positioning groove 92. The outer end of the positioning block 32 can be engaged in the positioning groove 92. The circumferentially distributed positioning blocks 32 are embedded in the positioning groove 92 at the bottom of the wheel hub cover 9 to achieve axial and circumferential dual positioning, realize the precise positioning of the wheel hub cover 9, eliminate the installation offset of the wheel hub cover 9, and ensure that the first color spraying mold 7 and the second color spraying mold 8 can be completely aligned with the color separation area of ​​the wheel hub cover 9.

[0045] As a preferred option, such as Figure 1 and Figure 2As shown, the telescopic mechanism 4 includes two columns 42 and two springs 43. The two columns 42 are fixedly connected to the top of the spray frame 2 and symmetrically distributed on both sides of the positioning mechanism 3. The springs 43 are sleeved on the columns 42, with their bottoms fixedly connected to the top of the spray frame 2 and their tops fixedly connected to the bottom of the mounting bracket 41. The mounting bracket 41 is slidably sleeved on the columns 42 on both sides. The limiting component 5 is a nut 51, with two nuts 51 corresponding to the two columns 42. An external thread 44 is provided on the lower outer peripheral wall of the column 42, and the nuts 51 are threadedly connected to the external thread 44 of the column 42. The mounting bracket 41 can still slide vertically along the external thread 44 of the column 42. Specifically, in the appendix of the scheme... Figure 1 To be continued Figure 3 In the case where the mounting bracket 41 is not subjected to external force, the spring 43 pushes the mounting bracket 41 upwards above the external thread of the column 42, and the nut 51 is located on the upper surface of the support frame. The nut 51 is made of plastic and slides vertically with the upper part of the column 42 without external threads. The spring 43 provides elastic force for the vertical movement of the mounting bracket 41, allowing the mounting bracket 41 (and the first spraying mold 7 or the second spraying mold 8 on the mounting bracket 41) to move up and down. When one color needs to be sprayed, the first spraying mold 7 or the second spraying mold 8 is pressed, and the spring 43 is compressed until the bottom of the first spraying mold 7 or the second spraying mold 8 is tightly attached to the upper surface of the hub cover 9. Then, the nut 51 is put on the column 42 and threaded onto the external thread 44 at the lower part of the column 42, so that the bottom of the nut 51 abuts against the top of the mounting bracket 41, thereby supporting the mounting bracket 41 with... The first spraying mold 7 or the second spraying mold 8 on the mounting bracket 41 are limited. In this embodiment, the mounting bracket 41, the first spraying mold 7, the second spraying mold 8 and the connecting rod 61 are all made of lightweight plastic (such as polypropylene). When it is necessary to replace the spraying mold, the nut 51 on the upright is rotated so that the spring 43 is not subjected to any external force other than the gravity of the mounting bracket 41, the first spraying mold 7, the second spraying mold 8 and the connecting rod 61. This allows the spring 43 to drive the mounting bracket 41 to move upward and drive the spraying mold to detach from the hub cover 9, making it easy to replace the spraying mold.

[0046] In this embodiment, a handle is provided on the outer wall of the nut 51 to facilitate rotating the nut 51.

[0047] As a preferred option, such as Figure 6 and Figure 7As shown, the connecting assembly 6 includes a connecting rod 61, a magnet 62, and a magnetically conductive metal block 63; the top of the first spraying mold 7 and the second spraying mold 8 are both fixedly connected to two spaced connecting rods 61, the top of the connecting rod 61 is fixedly connected to a magnet 62, the mounting bracket 41 is provided with a connecting groove 45 corresponding to the connecting rod 61, the magnetically conductive metal block 63 is fixedly connected in the connecting groove 45, and the magnet 62 is magnetically connected to the magnetically conductive metal block 63. In this embodiment, the bottom of the mounting bracket 41 has four connecting slots 45 corresponding to the connecting rods 61 at the top of the first spray paint mold 7 and the second spray paint mold 8. The first spray paint mold 7 and the second spray paint mold 8 are both fixed to the magnetic metal block 63 in the connecting slots 45 at the bottom of the mounting bracket 41 by magnets 62 on the connecting rods 61. They can be directly pulled out when disassembling. When changing the paint color, it is convenient to quickly replace the first spray paint mold 7 and the second spray paint mold 8. The magnets 62 are neodymium magnets 62 (NdFeB), and the magnetic metal block 63 is soft iron (DT4C) to ensure that the adsorption force is ≥5kg (to prevent vibration and falling off), avoid the problem of adhesive residue covered by tape, and reduce subsequent cleaning processes.

[0048] In this embodiment, the cross-sectional area of ​​the magnetically conductive metal block 63 is slightly larger than the cross-sectional area of ​​the magnet 62 at the upper end of the connecting rod 61, ensuring that the magnetically conductive metal block 63 fully covers the magnet 62.

[0049] As a preferred option, such as Figure 1 and Figure 2 As shown, a collection box 13 is provided below the base frame 1. The collection box 13 facilitates the collection of excess paint dripping down, making subsequent cleaning easier.

[0050] The working principle of this utility model is as follows:

[0051] In use, the center cover groove 91 of the hub cap 9 is snapped onto the upper end of the positioning post 31, and each positioning block 32 of the hub cap 9 is accurately snapped into the corresponding positioning groove 92, so that the hub cap 9 is firmly fixed on the spraying frame 2. Turn out the nut 51 to adjust the initial height of the mounting frame 41, ensuring that the mounting frame 41 and the surface of the hub cap 9 are kept at an appropriate distance, so that the first spraying mold 7 is installed on the mounting frame 41, so that the connecting rod 61 of the first spraying mold 7 is aligned with the connecting groove 45 of the mounting frame 41. The magnet 62 on the connecting rod 61 is attracted and fixed to the magnetic metal block 63 in the bottom connecting groove 45 of the mounting frame 41, so that the first spraying mold 7 is quickly fixed. Press the first spraying mold 7, the spring 43 is compressed until the bottom of the first spraying mold 7 is tightly attached. The corresponding color-separated area on the upper surface of the hubcap 9 is then fitted with a nut 51 and threaded onto the external thread 44 at the bottom of the column 42, so that the bottom of the nut 51 abuts against the top of the mounting bracket 41, thereby limiting the mounting bracket 41 and the first color-spraying mold 7 on the mounting bracket 41. Then, the spray gun 2 is rotated to make the hubcap 9 and the first color-spraying mold 7 rotate synchronously. The exposed area is sprayed with a spray gun. After the first color spraying is completed, it is left to stand until it is surface dry. The nut 51 on the column is turned out so that the spring 43 can drive the mounting bracket 41 to move upward and drive the first color-spraying mold 7 to detach from the hubcap 9. The first color-spraying mold 7 is removed from the mounting bracket 41 to facilitate the replacement of the second color-spraying mold 8. The above painting operation is repeated.

[0052] The present invention has been described in detail above. The specific embodiments are provided only to help understand the method and core idea of ​​the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A dual color paint spraying device for wheel cover, characterized by: It includes a base frame (1), a spraying frame (2), a positioning mechanism (3), a telescopic mechanism (4), a limiting component (5), a connecting assembly (6), a first spraying mold (7), and a second spraying mold (8); The lower end of the spraying frame (2) is rotatably connected to the base frame (1); The positioning mechanism (3) is mounted on the spraying frame (2) and is used to position the hub cover (9); The telescopic mechanism (4) is mounted on the spraying frame (2), and the movable end of the telescopic mechanism (4) is connected to the mounting frame (41), which can drive the mounting frame (41) to move vertically; The first spraying mold (7) and the second spraying mold (8) are detachably connected to the mounting frame (41) via the connecting component (6). The telescopic mechanism (4) can respectively drive the first spraying mold (7) and the second spraying mold (8) to abut against the wheel hub cover (9). The limiting member (5) is used to limit the vertical position of the mounting bracket (41).

2. The dual-color painting device for a wheel cover according to claim 1, wherein: The base frame (1) has a rotating seat (11) fixedly installed at the top center, and the bottom of the spray frame (2) has a rotating rod (12) fixedly connected, with the lower end of the rotating rod (12) rotatably connected inside the rotating seat (11).

3. The dual-color painting device for a wheel cover according to claim 1, wherein: The positioning mechanism (3) includes a positioning column (31) and a positioning block (32); The hub cover (9) has a central cover groove (91) at the bottom, and the hub cover (9) also has several circumferentially arrayed positioning grooves (92) at the bottom; The positioning post (31) is fixedly connected to the center of the top of the spraying frame (2). The upper end of the positioning post (31) is engaged with the center cover groove (91). The positioning block (32) is provided with several positioning grooves (92) corresponding to several positioning blocks. Several positioning blocks (32) are circumferentially arrayed and connected to the positioning post (31). The upper end of each positioning block (32) can be engaged in the corresponding positioning groove (92).

4. The dual-color painting device for a wheel cover according to claim 1, wherein: The telescopic mechanism (4) includes a column (42) and a spring (43); Two columns (42) and two springs (43) are provided. The two columns (42) are fixedly connected to the top of the spray frame (2) and symmetrically distributed on both sides of the positioning mechanism (3). The springs (43) are sleeved on the columns (42). The bottom of the springs (43) is fixedly connected to the top of the spray frame (2). The top of the springs (43) is fixedly connected to the bottom of the mounting frame (41). The two ends of the mounting frame (41) are slidably sleeved on the columns (42) on both sides.

5. The dual-color painting device for a wheel cover according to claim 4, wherein: The limiting component (5) is a nut (51). There are two nuts (51) corresponding to the two columns (42). The lower outer peripheral wall of the column (42) is provided with an external thread (44). The nut (51) is threadedly connected to the external thread (44) of the column (42).

6. The dual-color painting device for a wheel cover according to claim 1, wherein: The connecting assembly (6) includes a connecting rod (61), a magnet (62), and a magnetically conductive metal block (63); The top of the first spraying mold (7) and the second spraying mold (8) are fixedly connected to two connecting rods (61) that are spaced apart. The top of the connecting rod (61) is fixedly connected to a magnet (62). The mounting bracket (41) has a connecting groove (45) corresponding to the connecting rod (61). The magnetic metal block (63) is fixedly connected in the connecting groove (45). The magnet (62) is magnetically connected to the magnetic metal block (63).

7. The hubcap two-color spray painting device according to claim 1, characterized in that: A collection box (13) is provided below the base frame (1).

Images