Automatic spraying and coating line for hubs

Abstract

The utility model relates to the technical field of automatic spraying and coating lines, and discloses an automatic spraying and coating line for hubs, which comprises a coating line body, a placing frame is arranged on the coating line body, and a positioning frame is fixedly mounted on the placing frame. According to the hub spraying device, the blocking disc is arranged, the transmission assembly drives the upper sliding assembly and the lower sliding assembly to move at the same time, the installation frame is driven by the sliding assemblies to move, and when the installation frame moves, the blocking disc on the installation frame and the hub limited by the positioning frame are aligned, and then the blocking disc is attached to the side, needing to be sprayed, of the hub; in the spraying process, paint can only be sprayed on the hub through the spraying openings in the surfaces of the blocking discs, corresponding parts can be shielded by replacing the blocking discs with different spraying openings, then color register spraying is carried out, protective stickers on the surface of the hub do not need to be manually pasted and cleaned, the whole process is convenient and rapid, and the efficiency of a production line is improved.

Description

Technical Field

[0001] This utility model relates to the field of automatic spray coating line technology, specifically an automatic spray coating line for wheel hubs. Background Technology

[0002] The automatic wheel hub painting line is a highly automated production line, mainly used for surface painting of automotive wheel hubs and other parts. With the development of personalized and diversified appearance designs of aluminum alloy wheels, the demand for two-tone wheels has received more and more attention in the market. The painting process of different surface colors of the same wheel hub is more complex and varied than before, requiring the surface colors to be alternating and the colors to change from dark colors such as black and gray to bright colors such as blue and orange.

[0003] The current spraying method involves manually applying protective stickers to the surface of the wheel hub to cover the corresponding parts before applying the color coating. Because the stickers are used for protection, they must be manually removed before the baking process after spraying to avoid burning them and affecting the appearance of the wheel hub. In addition, the manual operation method is extremely inefficient and cannot meet the requirements for the automated production line. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The purpose of this invention is to solve the problem that the existing spraying method involves manually pasting protective stickers onto the surface of the wheel hub to cover the corresponding parts before color spraying. Because the sticker protection method requires manual removal before the baking process after spraying to avoid the sticker burning and affecting the appearance of the wheel hub, and the manual operation method is extremely inefficient, the operation process cannot meet the requirements of automated production lines. Therefore, an automatic wheel hub spraying and coating line is proposed.

[0006] (II) Technical Solution

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0008] An automatic wheel hub spraying and coating line includes a coating line body, a placement frame on the coating line body, a positioning frame fixedly installed on the placement frame, a transmission assembly on the coating line body, sliding components on the top and bottom of the transmission assembly, both sliding components being connected to a mounting frame, and symmetrically arranged snap-fit ​​components on the mounting frame, both snap-fit ​​components being connected to a blocking disc.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Preferably, the positioning frame has a plurality of positioning blocks installed in a circular array, and the positioning blocks are adapted to the gap on the wheel hub.

[0011] Preferably, the transmission assembly includes a transmission frame, which is fixedly mounted on the coating line body. A drive motor is fixedly mounted on the top of the transmission frame, and a transmission rod connected to the output end of the drive motor is rotatably mounted inside the transmission frame. Both ends of the transmission rod are fixedly mounted with main gears.

[0012] Preferably, the sliding assembly includes a sliding groove, and the top and bottom of the transmission frame are both fixedly installed with sliding grooves. A lead screw is rotatably installed inside the sliding groove. A secondary gear that meshes with the main gear is fixedly installed at one end of the lead screw near the transmission rod. A lead screw slider that is threadedly connected to the lead screw is slidably installed inside the sliding groove. The lead screw slider is fixedly connected to the mounting frame.

[0013] Preferably, the snap-fit ​​assembly includes a slot, and the mounting bracket has symmetrically installed slots. A threaded pin is slidably installed inside the slot, and one end of the threaded pin is threadedly connected to a nut.

[0014] Preferably, the blocking disc has several spray nozzles, a rubber retaining ring is fixedly installed on the side of the blocking disc facing the mounting frame, and a retaining block that matches the retaining groove is fixedly installed on both sides of the blocking disc.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0017] This invention features a blocking disc that, through a transmission assembly, simultaneously moves two sliding components, one above and one below. The mounting frame is moved by these sliding components. As the mounting frame moves, it aligns the blocking disc with the wheel hub, which is then positioned by the positioning frame. The blocking disc is then attached to the side of the wheel hub that needs painting. During the painting process, the paint can only be applied to the wheel hub through the spray nozzle on the blocking disc. By changing the blocking disc with different spray nozzles, corresponding areas can be masked before color painting. Furthermore, there is no need for manual application and cleaning of protective stickers on the wheel hub surface. The entire process is convenient and quick, improving production line efficiency. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a front view sectional view of the mounting bracket of this utility model;

[0020] Figure 3 This is a cross-sectional view of the left side of the present invention.

[0021] Figure 4 This is a schematic diagram of the positioning frame structure of this utility model.

[0022] In the diagram: 1. Painting line body; 2. Placement rack; 3. Positioning rack; 31. Positioning block; 4. Transmission assembly; 41. Transmission rack; 42. Drive motor; 43. Transmission rod; 44. Main gear; 5. Sliding assembly; 51. Sliding groove; 52. Lead screw; 53. Secondary gear; 54. Lead screw slider; 6. Mounting rack; 7. Snap-fit ​​assembly; 71. Snap-fit ​​groove; 72. Threaded pin; 73. Nut; 8. Blocking disc; 81. Spray nozzle; 82. Rubber retaining ring; 83. Snap-fit ​​block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the embodiments, by Figure 1-4 An automatic wheel hub spraying and coating line is provided, including a coating line body 1, a placement frame 2 is provided on the coating line body 1, a positioning frame 3 is fixedly installed on the placement frame 2, a transmission component 4 is provided on the coating line body 1, a sliding component 5 is provided at the top and bottom of the transmission component 4, both sliding components 5 are connected to a mounting frame 6, and a snap-fit ​​component 7 is symmetrically provided on the mounting frame 6, both snap-fit ​​components 7 are connected to a blocking disc 8.

[0025] Reference Figure 1-4 Among them, a number of positioning blocks 31 are installed in a circular array on the positioning frame 3, and the positioning blocks 31 are adapted to the gap on the wheel hub;

[0026] With the above structural design, the wheel hub gap can be locked onto the positioning block 31 on the surface of the positioning frame 3 to limit the wheel hub and prevent the wheel hub from rotating on the positioning frame 3.

[0027] Reference Figure 1-3 The transmission assembly 4 includes a transmission frame 41. The transmission frame 41 is fixedly installed on the painting line body 1. A drive motor 42 is fixedly installed on the top of the transmission frame 41. A transmission rod 43 connected to the output end of the drive motor 42 is rotatably installed inside the transmission frame 41. A main gear 44 is fixedly installed at both ends of the transmission rod 43.

[0028] With the above structural setup, the drive motor 42 is started, and the drive motor 42 drives the transmission rod 43 to rotate. When the transmission rod 43 rotates, it drives the secondary gear 53 meshing with it to rotate through the main gear 44 at both ends.

[0029] Reference Figure 1-3The sliding component 5 includes a sliding groove 51. The top and bottom of the transmission frame 41 are fixedly installed with sliding grooves 51. A lead screw 52 is rotatably installed inside the sliding groove 51. A secondary gear 53 that meshes with the main gear 44 is fixedly installed at one end of the lead screw 52 near the transmission rod 43. A lead screw slider 54 that is threadedly connected to the lead screw 52 is slidably installed inside the sliding groove 51. The lead screw slider 54 is fixedly connected to the mounting frame 6.

[0030] With the above structural arrangement, after the secondary gear 53 is driven to rotate by the main gear 44, the secondary gear 53 drives the lead screw 52 to rotate, and the lead screw 52 drives the lead screw slider 54 to move in the sliding groove, while simultaneously driving the mounting bracket 6 to move.

[0031] Reference Figure 1-3 The snap-fit ​​assembly 7 includes a slot 71. The slots 71 are symmetrically installed on the mounting bracket 6. A threaded pin 72 is slidably installed inside the slot 71. One end of the threaded pin 72 is threadedly connected to a nut 73.

[0032] With the above structure, after the locking blocks 83 on both sides of the blocking disc 8 are close to the inside of the slot 71, the threaded pin 72 passes through the slot 71 and the locking block 83 together. Tightening the nut 73 and the threaded pin 72 will fix the two together, and different blocking discs 8 can be quickly replaced as needed.

[0033] Reference Figure 1-3 The blocking plate 8 has several spray nozzles 81, and a rubber retaining ring 82 is fixedly installed on the side of the blocking plate 8 facing the mounting frame 6. Both sides of the blocking plate 8 are fixedly installed with a retaining block 83 that matches the retaining groove 71.

[0034] With the above-mentioned structural configuration, the spray nozzle 81 of the blocking disc 8 controls the position and area of ​​the wheel hub that need to be sprayed. The hook-shaped rubber retainer 82 can be pushed by the sliding component 5 to lock the blocking disc 8 on the surface of one side of the wheel hub, preventing the blocking disc 8 from shaking and also playing a positioning role to ensure that the blocking disc 8 is aligned with the side of the wheel hub.

[0035] Working principle:

[0036] Implementation steps for the first innovation point:

[0037] Step 1: Place the wheel hub on the placement frame 2 and push the wheel hub onto the positioning frame 3 at the same time, so that the gap of the wheel hub is engaged with the positioning block 31 on the surface of the positioning frame 3, so that the positioning block 31 limits the wheel hub and prevents the wheel hub from rotating on the positioning frame 3.

[0038] Step 2: After fixing, start the drive motor 42. The drive motor 42 drives the transmission rod 43 to rotate. When the transmission rod 43 rotates, it drives the secondary gear 53 meshing with it through the main gear 44 at both ends. The secondary gear 53 drives the lead screw 52 to rotate. The lead screw 52 drives the lead screw slider 54 to move in the sliding groove, and at the same time drives the mounting bracket 6 to move. The mounting bracket 6 drives the blocking plate 8 on it. The rubber retaining ring 82 on the blocking plate 8 is used to lock it onto the surface of one side of the wheel hub and make it fit against the side of the wheel hub.

[0039] Step 3: After the wheel hubs in the same batch are painted, the threaded pin 72 can be rotated to disconnect its threaded connection with the nut 73. After pulling out the threaded pin 72, the locking blocks 83 on both sides of the blocking disc 8 can be pulled out from the slot 71. The old blocking disc 8 can be removed and the new blocking disc 8 can be installed.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0041] 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 wheel hub automatic spray painting line, characterized by: The system includes a painting line body (1), a placement frame (2) is provided on the painting line body (1), a positioning frame (3) is fixedly installed on the placement frame (2), a transmission assembly (4) is provided on the painting line body (1), a sliding assembly (5) is provided at the top and bottom of the transmission assembly (4), both of the sliding assemblies (5) are connected to a mounting frame (6), and a snap-fit ​​assembly (7) is symmetrically provided on the mounting frame (6), both of the snap-fit ​​assemblies (7) are connected to a blocking disc (8).

2. The automatic wheel hub spraying and coating line according to claim 1, characterized in that: The positioning frame (3) has several positioning blocks (31) arranged in a circular array, and the positioning blocks (31) are adapted to the gap on the wheel hub.

3. The automatic wheel hub spraying and coating line according to claim 1, characterized in that: The transmission assembly (4) includes a transmission frame (41). The transmission frame (41) is fixedly installed on the coating line body (1). A drive motor (42) is fixedly installed on the top of the transmission frame (41). A transmission rod (43) connected to the output end of the drive motor (42) is rotatably installed inside the transmission frame (41). Both ends of the transmission rod (43) are fixedly installed with main gears (44).

4. An automatic wheel hub spraying and coating line according to claim 3, characterized in that: The sliding assembly (5) includes a sliding groove (51). The top and bottom of the transmission frame (41) are both fixedly installed with sliding grooves (51). A lead screw (52) is rotatably installed inside the sliding groove (51). A secondary gear (53) that meshes with the main gear (44) is fixedly installed at one end of the lead screw (52) near the transmission rod (43). A lead screw slider (54) that is threadedly connected to the lead screw (52) is slidably installed inside the sliding groove (51). The lead screw slider (54) is fixedly connected to the mounting frame (6).

5. An automatic wheel hub spraying and coating line according to claim 1, characterized in that: The snap-fit ​​assembly (7) includes a slot (71), and the slots (71) are symmetrically installed on the mounting bracket (6). A threaded pin (72) is slidably installed inside the slot (71), and a nut (73) is threadedly connected to one end of the threaded pin (72).

6. An automatic wheel hub spraying and coating line according to claim 1, characterized in that: The blocking plate (8) has several spray nozzles (81). A rubber retaining ring (82) is fixedly installed on the side of the blocking plate (8) facing the mounting frame (6). Both sides of the blocking plate (8) are fixedly installed with a retaining block (83) that matches the retaining groove (71).

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